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diff --git a/NEWS b/NEWS
index 3f48d241..0b1ecbc6 100644
--- a/NEWS
+++ b/NEWS
@@ -1,621 +1,625 @@
Noteworthy changes in version 1.5.x (unreleased)
------------------------------------------------
+ * New variants of the TIGER algorithm.
+
* New cipher algorithm mode for AES-WRAP.
* Fixed minor memory leak in DSA key generation.
* No more switching to FIPS mode if /proc/version is not readable.
* Fixed sigill during Padlock detection on old CPUs.
* Fixed a hang on some W2000 machines.
* Boosted SHA-512 performance by 30% on ia32 boxes and gcc 4.3;
SHA-256 went up by 25%.
* Support for WindowsCE.
* Interface changes relative to the 1.4.2 release:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GCRY_CIPHER_MODE_AESWRAP NEW.
GCRY_PK_ECDH NEW.
+ GCRY_MD_TIGER1 NEW.
+ GCRY_MD_TIGER2 NEW.
Noteworthy changes in version 1.4.4 (2009-01-22)
------------------------------------------------
* Publish GCRY_MODULE_ID_USER and GCRY_MODULE_ID_USER_LAST constants.
This functionality has been in Libgcrypt since 1.3.0.
* MD5 may now be used in non-enforced fips mode.
* Fixed HMAC for SHA-384 and SHA-512 with keys longer than 64 bytes.
* In fips mode, RSA keys are now generated using the X9.31 algorithm
and DSA keys using the FIPS 186-2 algorithm.
* The transient-key flag is now also supported for DSA key
generation. DSA domain parameters may be given as well.
Noteworthy changes in version 1.4.3 (2008-09-18)
------------------------------------------------
* Try to auto-initialize Libgcrypt to minimize the effect of
applications not doing that correctly. This is not a perfect
solution but given that many applicationion would totally fail
without such a hack, we try to help at least with the most common
cases. Folks, please read the manual to learn how to properly
initialize Libgcrypt!
* Auto-initialize the secure memory to 32k instead of aborting the
process.
* Log fatal errors via syslog.
* Changed the name and the semantics of the fips mode config file.
* Add convenience macro gcry_fips_mode_active.
* More self-tests.
* Documentation cleanups.
Noteworthy changes in version 1.4.2 (2008-09-08)
------------------------------------------------
* The long missing gcry_mpi_lshift function has been added.
* RSA key generation now supports a "transient-key" flag.
* The keygrip computation for ECDSA has been implemented thus ECDSA
is now fully supported.
* A few macros have been replaced by functions for better type
checking.
* The thread initialization structure now carries version
information.
* The manual describes more clearly how to initialize Libgcrypt.
* The library may now be switched into a FIPS mode.
* Interface changes relative to the 1.3.0 release:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GCRYCTL_OPERATIONAL_P NEW.
GCRYCTL_FIPS_MODE_P NEW.
GCRYCTL_FORCE_FIPS_MODE NEW.
gcry_cipher_setkey NEW: Replaces macro.
gcry_cipher_setiv NEW: Replaces macro.
gcry_cipher_setctr NEW: Replaces macro.
gcry_mpi_lshift NEW.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Noteworthy changes in version 1.4.1 (2008-04-25)
------------------------------------------------
* Fixed a bug introduced by 1.3.1 which led to the comsumption of far
too much entropy for the intial seeding.
* Improved AES performance for CFB and CBC modes.
* Removed build problems for the Padlock support.
Noteworthy changes in version 1.4.0 (2007-12-10)
------------------------------------------------
* New configure option --disable-padlock-support which is mostly
useful in case of build problems.
Noteworthy changes in version 1.3.2 (2007-12-03)
------------------------------------------------
* The visibility attribute is now used if supported by the toolchain.
* The ACE engine of VIA processors is now used for AES-128.
* The ASN.1 DER template for SHA-224 has been fixed.
Noteworthy changes in version 1.3.1 (2007-10-26)
------------------------------------------------
* The entire library is now under the LGPL. The helper programs and
the manual are under the GPL. Kudos to Peter Gutmann for giving
permissions to relicense the rndw32 and rndunix modules.
* The Camellia cipher is now under the LGPL and included by default.
* Fixed a bug in the detection of symbol prefixes which inhibited the
build of optimzied assembler code on certain systems.
* Updated the entropy gatherer for W32.
Noteworthy changes in version 1.3.0 (2007-05-04)
------------------------------------------------
* Changed the way the RNG gets initialized. This allows to keep it
uninitialized as long as no random numbers are used. To override
this, the new macro gcry_fast_random_poll may be used. It is in
general a good idea to spread this macro into the application code
to make sure that these polls happen often enough.
* Made the RNG immune against fork without exec.
* Reading and writing the random seed file is now protected by a
fcntl style file lock on systems that provide this function.
* Support for SHA-224 and HMAC using SHA-384 and SHA-512.
* Support for the SEED cipher.
* Support for the Camellia cipher. Note that Camellia is disabled by
default, and that enabling it changes the license of libgcrypt from
LGPL to GPL.
* Support for OFB encryption mode.
* gcry_mpi_rshift does not anymore truncate the shift count.
* Reserved algorithm ranges for use by applications.
* Support for DSA2.
* The new function gcry_md_debug should be used instead of the
gcry_md_start_debug and gcry_md_stop_debug macros.
* New configure option --enable-random-daemon to support a system
wide random daemon. The daemon code is experimental and not yet
very well working. It will eventually allow to keep a global
random pool for the sake of short living processes.
* Non executable stack support is now used by default on systems
supporting it.
* Support for Microsoft Windows.
* Assembler support for the AMD64 architecture.
* New configure option --enable-mpi-path for optimized builds.
* Experimental support for ECDSA; should only be used for testing.
* New control code GCRYCTL_PRINT_CONFIG to print the build
configuration.
* Minor changes to some function declarations. Buffer arguments are
now typed as void pointer. This should not affect any compilation.
Fixed two bugs in return values and clarified documentation.
* Interface changes relative to the 1.2.0 release:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
gcry_fast_random_poll NEW
gcry_md_debug NEW
gcry_sexp_nth_string NEW
GCRY_MD_SHA224 NEW
GCRY_PK_USAGE_CERT NEW
GCRY_PK_USAGE_AUTH NEW
GCRY_PK_USAGE_UNKN NEW
GCRY_PK_ECDSA NEW
GCRY_CIPHER_SEED NEW
GCRY_CIPHER_CAMELLIA128 NEW
GCRY_CIPHER_CAMELLIA192 NEW
GCRY_CIPHER_CAMELLIA256 NEW
GCRYCTL_FAKED_RANDOM_P NEW
GCRYCTL_PRINT_CONFIG NEW
GCRYCTL_SET_RNDEGD_SOCKET NEW.
gcry_mpi_scan CHANGED: Argument BUFFER is now void*.
gcry_pk_algo_name CHANGED: Returns "?" instead of NULL.
gcry_cipher_algo_name CHANGED: Returns "?" instead of "".
gcry_pk_spec_t CHANGED: Element ALIASES is now const ptr.
gcry_md_write_t CHANGED: Argument BUF is now a const void*.
gcry_md_ctl CHANGED: Argument BUFFER is now void*.
gcry_cipher_encrypt CHANGED: Arguments IN and OUT are now void*.
gcry_cipher_decrypt CHANGED: Arguments IN and OUT are now void*.
gcry_sexp_sprint CHANGED: Argument BUFFER is now void*.
gcry_create_nonce CHANGED: Argument BUFFER is now void*.
gcry_randomize CHANGED: Argument BUFFER is now void*.
gcry_cipher_register CHANGED: Argument ALGORITHM_ID is now int*.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Noteworthy changes in version 1.2.0 (2004-04-15)
------------------------------------------------
* First stable release.
Noteworthy changes in version 1.1.94 (2004-03-29)
-------------------------------------------------
* The support for multi-threaded users goes into its third
incarnation. We removed compile time support for thread libraries.
To support the thread library of your choice, you have to set up
callback handlers at initialization time. New data structures, a
new control command, and default initializers are provided for this
purpose.
* Interface changes relative to the 1.1.93 release:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libgcrypt-config --thread OBSOLETE
libgcrypt-pth.la REMOVED
libgcrypt-pthread.la REMOVED
GCRYCTL_SET_THREAD_CBS NEW
struct gcrypt_thread_cbs NEW
enum gcry_thread_option NEW
GCRY_THREAD_OPTION_PTH_IMPL NEW
GCRY_THREAD_OPTION_PTHREAD_IMPL NEW
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Noteworthy changes in version 1.1.93 (2004-03-06)
-------------------------------------------------
* The automatic thread library detection has finally been removed.
From now on, only linking explicitely to libgcrypt, libgcrypt-pth
or libgcrypt-pthread is supported.
Noteworthy changes in version 1.1.92 (2004-02-20)
-------------------------------------------------
* Minor bug fixes.
* Included a limited implementation of RFC2268.
* Changed API of the gcry_ac_ functions. Only a very few programs
should be affected by this.
* Interface changes relative to the 1.1.91 release:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GCRY_CIPHER_RFC2268_40 NEW.
gcry_ac_data_set CHANGED: New argument FLAGS.
gcry_ac_data_get_name CHANGED: New argument FLAGS.
gcry_ac_data_get_index CHANGED: New argument FLAGS.
gcry_ac_key_pair_generate CHANGED: New and reordered arguments.
gcry_ac_key_test CHANGED: New argument HANDLE.
gcry_ac_key_get_nbits CHANGED: New argument HANDLE.
gcry_ac_key_get_grip CHANGED: New argument HANDLE.
gcry_ac_data_search REMOVED.
gcry_ac_data_add REMOVED.
GCRY_AC_DATA_FLAG_NO_BLINDING REMOVED.
GCRY_AC_FLAG_NO_BLINDING NEW: Replaces above.
Noteworthy changes in version 1.1.91 (2003-12-19)
-------------------------------------------------
* Code cleanups and minor bug fixes.
Noteworthy changes in version 1.1.90 (2003-11-14)
-------------------------------------------------
* The use of the GCRY_WEAK_RANDOM level is now deprecated in favor of
the new gcry_create_nonce function.
* gcry_sexp_build now supports a "%b" format to include a memory buffer.
* Minor configuration fixes.
* Interface changes relative to the 1.1.44 release:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
gcry_create_nonce NEW
gcry_sexp_build ENHANCED
Noteworthy changes in version 1.1.44 (2003-10-31)
-------------------------------------------------
* Bug fixes and more code cleanups.
* Enhanced the prime API.
* Interface changes relative to the 1.1.43 release:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
gcry_prime_group_generator NEW
gcry_prime_release_factors NEW
Noteworthy changes in version 1.1.43 (2003-09-04)
-------------------------------------------------
* Bug fixes and internal code cleanups.
* Support for the Serpent cipher algorithm.
* Interface changes relative to the 1.1.42 release:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
gcry_prime_generate NEW
gcry_prime_check NEW
Noteworthy changes in version 1.1.42 (2003-07-31)
-------------------------------------------------
* Major API cleanup. Applications need to be converted to the new
API. See README.apichanges for hints on how to do that. Backward
compatibility is provided where it was possible without too much
effort and did not collide with the overall sanitization effort.
However, this is only for ease of transition. NO DEPRECATED
FUNCTION OR DATA TYPE IS CONSIDERED A PART OF THE API OR ABI AND
WILL BE DROPPED IN THE FUTURE WITHOUT CHANGING THE SONAME OF THE
LIBRARY.
* If gcrypt.h is included in sources compiled by GCC 3.1 or later,
deprecated attributes will warn about use of obsolete functions and
type definitions. You can suppress these warnings by passing
-Wno-deprecated-declarations to the gcc command.
* gcry_check_version must be called from now on to initialize the
library, it is not longer optional.
* Removed `libgcrypt errno' concept.
* Libgcrypt depends on libgpg-error, a library that provides error
codes and according functions for all GnuPG components. Functions
that used to return error codes asa `int' have been changed to
return a code of type `gcry_error_t'. All GCRYERR_* error symbols
have been removed, since they are now contained in libgpg-error
(GPG_ERR_*). All functions and types in libgpg-error have also been
wrapped in Libgcrypt. The new types are gcry_err_code_t and
gcry_err_source_t. The new functions are gcry_err_code,
gcry_err_source, gcry_error, gcry_err_make, gcry_error_from_errno,
gcry_err_make_from_errno, gcry_err_code_from_errno,
gcry_err_code_to_errno, gcry_strsource.
* New function gcry_mpi_dump to help in debugging.
* Added alternative interface for asymmetric cryptography.
* CRC-32, CRC-32 a'la RFC 1510, CRC-24 a'la RFC 2440 are now
supported.
* SHA-256, SHA-384 and SHA-512 are now supported.
* 128 bit Twofish is now supported.
* The random module won't print the "not enough random bytes
available" anymore. A new progress status is issued instead.
* CBC-MAC for block ciphers is now supported, by using a
GCRY_CIPHER_CBC_MAC cipher flag.
* CTR mode for block ciphers is now supported.
* The public RSA exponent can now be specified in key generation.
* RSA blinding is now supported and is used automatically for RSA
decryption. It can be explicitely disabled by using the
`no-blinding' symbol in the `flags' S-Expression or by using the
GCRY_AC_FLAG_DATA_NO_BLINDING flag when using the ac interface.
* gcry_sexp_canon_len does not use a `historically encoded' error
code anymore.
* Interface changes relative to the 1.1.12 release:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GCRY_MPI DEPRECATED; Use: gcry_mpi_t
GcryMPI DEPRECATED; Use: gcry_mpi_t
GCRY_SEXP DEPRECATED; Use: gcry_sexp_t
GcrySexp DEPRECATED; Use: gcry_sexp_t
GCRY_CIPHER_HD DEPRECATED; Use: gcry_cipher_hd_t
GcryCipherHd DEPRECATED; Use: gcry_cipher_hd_t
GCRY_MD_HD DEPRECATED; Use: gcry_md_hd_t
GcryMDHd DEPRECATED; Use: gcry_md_hd_t
gcry_error_t NEW
gcry_err_code_t NEW
gcry_err_source_t NEW
gcry_err_make NEW
gcry_error NEW
gcry_err_code NEW
gcry_err_source NEW
gcry_err_code_from_errno NEW
gcry_err_code_to_errno NEW
gcry_err_make_from_errno NEW
gcry_error_from_errno NEW
gcry_strsource NEW
GCRYERR_{some error code} REMOVED; Use GPG_ERR_*
from libgpg-error instead.
gcry_errno REMOVED
gcry_sexp_canon_len CHANGED
gcry_sexp_build_array NEW
gcry_mpi_scan CHANGED: New argument to separate in/out args.
gcry_mpi_print CHANGED: Ditto.
gcry_mpi_dump NEW
gcry_cipher_open CHANGED
gcry_cipher_reset NEW
gcry_cipher_register NEW
gcry_cipher_unregister NEW
gcry_cipher_list NEW
gcry_cipher_algo_keylen REPLACED macro with function.
gcry_cipher_algo_blklen REPLACED macro with function.
gcry_pk_register NEW
gcry_pk_unregister NEW
gcry_pk_list NEW
gcry_pk_decrypt ENHANCED: Allows flag to return
complete S-expression.
gcry_md_open CHANGED
gcry_md_copy CHANGED
gcry_md_is_enabled NEW
gcry_md_is_secure NEW
gcry_md_register NEW
gcry_md_unregister NEW
gcry_md_list NEW
gcry_ac_data_t NEW
gcry_ac_key_t NEW
gcry_ac_key_pair_t NEW
gcry_ac_handle_t NEW
gcry_ac_key_spec_rsa_t NEW
gcry_ac_data_new NEW
gcry_ac_data_destroy NEW
gcry_ac_data_set NEW
gcry_ac_data_copy NEW
gcry_ac_data_length NEW
gcry_ac_data_get_name NEW
gcry_ac_data_get_index NEW
gcry_ac_data_clear NEW
gcry_ac_open NEW
gcry_ac_close NEW
gcry_ac_key_init NEW
gcry_ac_key_pair_generate NEW
gcry_ac_key_pair_extract NEW
gcry_ac_key_data_get NEW
gcry_ac_key_test NEW
gcry_ac_key_get_nbits NEW
gcry_ac_key_get_grip NEW
gcry_ac_key_destroy NEW
gcry_ac_key_pair_destroy NEW
gcry_ac_data_encrypt NEW
gcry_ac_data_decrypt NEW
gcry_ac_data_sign NEW
gcry_ac_data_verify NEW
gcry_ac_id_to_name NEW
gcry_ac_name_to_id NEW
gcry_handler_progress_t NEW
gcry_handler_alloc_t NEW
gcry_handler_secure_check_t NEW
gcry_handle_realloc_t NEW
gcry_handler_free_t NEW
gcry_handler_no_mem_t NEW
gcry_handler_error_t NEW
gcry_handler_log_t NEW
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Noteworthy changes in version 1.1.12 (2003-01-20)
-------------------------------------------------
* gcry_pk_sign, gcry_pk_verify and gcry_pk_encrypt can now handle an
optional pkcs1 flags parameter in the S-expression. A similar flag
may be passed to gcry_pk_decrypt but it is only syntactically
implemented.
* New convenience macro gcry_md_get_asnoid.
* There is now some real stuff in the manual.
Noteworthy changes in version 1.1.11 (2002-12-21)
-------------------------------------------------
* Don't export internal symbols anymore (currently only for GNU systems)
* New algorithm: MD4
* Implemented ciphertext stealing.
* Smaller bugs fixes and a few new OIDs.
* Interface changes relative to the 1.1.8 release:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
gcry_cipher_cts NEW
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Noteworthy changes in version 1.1.10 (2002-09-20)
-------------------------------------------------
* Fixed shared library builds for i386, PPC and Sparc.
* Added simple benchmark tool.
* Replaced the internal mutexes by code which automatically adapts to
the used threading library. Currently Pth and Pthread are
supported. For non-ELF systems the GNU toolchain is now required..
* Added untested support to build Windows DLLs.
Noteworthy changes in version 1.1.9 (2002-08-23)
------------------------------------------------
* Support for plain old DES.
Noteworthy changes in version 1.1.8 (2002-06-25)
------------------------------------------------
* Minor cleanups and exported a few new functions.
* Interface changes relative to the 1.1.7 release:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
gcry_mpi_div NEW
gcry_mpi_mod NEW
gcry_mpi_invm NEW
gcry_mpi_swap NEW
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Noteworthy changes in version 1.1.7 (2002-05-21)
------------------------------------------------
* Libgcrypt is now distributed under the terms of the GNU Lesser
General Public License; see the README file for details.
* It is possible to use libgcrypt w/o intialized secure memory.
* Libgcrypt should now be thread safe after the initialization.
gcry_control (GCRYCRL_INITIALIZATION_FINISHED,NULL,0) should have
been called before creating additional threads.
* Interface changes relative to the 1.1.6 release:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GCRYCTL_DISABLE_INTERNAL_LOCKING NEW
GCRYCTL_DISABLE_SECMEM NEW
GCRYCTL_INITIALIZATION_FINISHED NEW
GCRYCTL_INITIALIZATION_FINISHED_P NEW
GCRYCTL_ANY_INITIALIZATION_P NEW
gcry_strdup NEW
gcry_sexp_create NEW
gcry_sexp_new NEW
gcry_set_progress_handler NEW
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Noteworthy changes in version 1.1.6 (2002-02-07)
------------------------------------------------
* Enhanced the S-expression conversion functions.
Noteworthy changes in version 1.1.5 (2001-12-18)
------------------------------------------------
* gcry_{cipher,md}_map_name are now able to map stringified object IDs.
* New functions gcry_sexp_canon_len and gcry_cipher_mode_from_oid.
* Closed some memory leaks.
Noteworthy changes in version 1.1.4 (2001-08-03)
------------------------------------------------
* Arcfour does now work.
* Some minor fixes.
* Added a first test program
* Migrated to autoconf 2.52.
Noteworthy changes in version 1.1.3 (2001-05-31)
------------------------------------------------
* First release of Libgcrypt which is a result of splitting GnuPG
into into libgcrypt and GnuPG.
Copyright 2001, 2002, 2003, 2004, 2007, 2008,
2009 Free Software Foundation, Inc.
This file is free software; as a special exception the author gives
unlimited permission to copy and/or distribute it, with or without
modifications, as long as this notice is preserved.
This file is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
diff --git a/cipher/ChangeLog b/cipher/ChangeLog
index b6ba4d4e..6e199b0a 100644
--- a/cipher/ChangeLog
+++ b/cipher/ChangeLog
@@ -1,3965 +1,3975 @@
+2010-03-26 Werner Koch <wk@g10code.com>
+
+ * tiger.c (asn): Unfetter the old TIGER from an OID.
+ (TIGER_CONTEXT): Add field VARIANT.
+ (tiger_init): Factor code out to ...
+ (do_init): New.
+ (tiger1_init, tiger2_init): New.
+ (_gcry_digest_spec_tiger1, _gcry_digest_spec_tiger2): New.
+ * md.c (digest_table): Add TIGER1 and TIGER2 variants.
+
2009-12-11 Werner Koch <wk@g10code.com>
* sha256.c (Cho, Maj, Sum0, Sum1): Turn macros into inline
functions.
(transform): Partly unroll to interweave the chain variables
* sha512.c (ROTR, Ch, Maj, Sum0, Sum1): Turn macros into inline
functions.
(transform): Partly Unroll to interweave the chain variables.
Suggested by Christian Grothoff.
2009-12-10 Werner Koch <wk@g10code.com>
* Makefile.am (o_flag_munging): New.
(tiger.o, tiger.lo): Use it.
* cipher.c (do_ctr_encrypt): Add arg OUTBUFLEN. Check for
suitable value. Add check for valid inputlen. Wipe temporary
memory.
(do_ctr_decrypt): Likewise.
(do_cbc_encrypt, do_cbc_decrypt): Add arg OUTBUFLEN. Check for
suitable value. Move check for valid inputlen to here; change
returned error from INV_ARG to INV_LENGTH.
(do_ecb_encrypt, do_ecb_decrypt): Ditto.
(do_cfb_encrypt, do_cfb_decrypt): Ditto.
(do_ofb_encrypt, do_ofb_decrypt): Ditto.
(cipher_encrypt, cipher_encrypt): Adjust for above changes.
(gcry_cipher_encrypt, gcry_cipher_decrypt): Simplify.
2009-12-09 Werner Koch <wk@g10code.com>
* cipher.c (gcry_cipher_open): Allow for GCRY_CIPHER_MODE_AESWRAP.
(cipher_encrypt, cipher_decrypt): Ditto.
(do_aeswrap_encrypt, do_aeswrap_decrypt): New.
(struct gcry_cipher_handle): Add field marks.
(cipher_setkey, cipher_setiv): Update marks flags.
(cipher_reset): Reset marks.
(cipher_encrypt, cipher_decrypt): Add new arg OUTBUFLEN.
(gcry_cipher_encrypt, gcry_cipher_decrypt): Pass outbuflen to
cipher_encrypt. Replace GPG_ERR_TOO_SHORT by
GPG_ERR_BUFFER_TOO_SHORT.
2009-08-21 Werner Koch <wk@g10code.com>
* dsa.c (dsa_generate_ext): Release retfactors array before
setting it to NULL. Reported by Daiko Ueno.
2009-07-02 Werner Koch <wk@g10code.com>
* md.c (md_read): Fix incomplete check for NULL.
Reported by Fabian Kail.
2009-03-31 Werner Koch <wk@g10code.com>
* rsa.c (rsa_check_secret_key): Return GPG_ERR_BAD_SECKEY and not
GPG_ERR_PUBKEY_ALGO.
2009-02-16 Werner Koch <wk@g10code.com>
* rsa.c (generate_x931): Do not initialize TBL with automatic
variables.
* whirlpool.c, tiger.c, sha256.c, sha1.c, rmd160.c, md5.c
* md4.c, crc.c: Remove memory.h. This is garbage from gnupg.
Reported by Dan Fandrich.
2009-01-22 Werner Koch <wk@g10code.com>
* ecc.c (compute_keygrip): Remove superfluous const.
2009-01-06 Werner Koch <wk@g10code.com>
* rmd160.c (oid_spec_rmd160): Add TeleTrust identifier.
2008-12-10 Werner Koch <wk@g10code.com>
* dsa.c (generate): Add arg DOMAIN and use it if specified.
(generate_fips186): Ditto.
(dsa_generate_ext): Parse and check the optional "domain"
parameter and pass them to the generate functions.
* rijndael.c (rijndael_names): Add "AES128" and "AES-128".
(rijndael192_names): Add "AES-192".
(rijndael256_names): Add "AES-256".
2008-12-05 Werner Koch <wk@g10code.com>
* dsa.c (generate): Add arg TRANSIENT_KEY and use it to detrmine
the RNG quality needed.
(dsa_generate_ext): Parse the transient-key flag und pass it to
generate.
2008-11-28 Werner Koch <wk@g10code.com>
* dsa.c (generate_fips186): Add arg DERIVEPARMS and use the seed
value if available.
* primegen.c (_gcry_generate_fips186_2_prime): Fix inner p loop.
2008-11-26 Werner Koch <wk@g10code.com>
* primegen.c (_gcry_generate_fips186_3_prime): New.
* dsa.c (generate_fips186): Add arg USE_FIPS186_2.
(dsa_generate_ext): Parse new flag use-fips183-2.
2008-11-25 Werner Koch <wk@g10code.com>
* dsa.c (generate_fips186): New.
(dsa_generate_ext): Use new function if derive-parms are given or
if in FIPS mode.
* primegen.c (_gcry_generate_fips186_2_prime): New.
2008-11-24 Werner Koch <wk@g10code.com>
* pubkey.c (gcry_pk_genkey): Insert code to output extrainfo.
(pubkey_generate): Add arg R_EXTRAINFO and pass it to the extended
key generation function.
* rsa.c (gen_x931_parm_xp, gen_x931_parm_xi): New.
(generate_x931): Generate params if not given.
(rsa_generate_ext): Parse use-x931 flag. Return p-q-swapped
indicator.
* dsa.c (dsa_generate_ext): Put RETFACTORS into R_EXTRAINFO if
possible.
* pubkey.c (gcry_pk_genkey): Remove parsing of almost all
parameters and pass the parameter S-expression to pubkey_generate.
(pubkey_generate): Simplify by requitring modules to parse the
parameters. Remove the special cases for Elgamal and ECC.
(sexp_elements_extract_ecc): Add arg EXTRASPEC and use it. Fix
small memory leak.
(sexp_to_key): Pass EXTRASPEC to sexp_elements_extract_ecc.
(pubkey_table) [USE_ELGAMAL]: Add real extraspec.
* rsa.c (rsa_generate_ext): Adjust for new calling convention.
* dsa.c (dsa_generate_ext): Ditto.
* elgamal.c (_gcry_elg_generate): Ditto. Rename to elg_generate_ext.
(elg_generate): New.
(_gcry_elg_generate_using_x): Remove after merging code with
elg_generate_ext.
(_gcry_pubkey_extraspec_elg): New.
(_gcry_elg_check_secret_key, _gcry_elg_encrypt, _gcry_elg_sign)
(_gcry_elg_verify, _gcry_elg_get_nbits): Make static and remove
_gcry_ prefix.
* ecc.c (_gcry_ecc_generate): Rename to ecc_generate_ext and
adjust for new calling convention.
(_gcry_ecc_get_param): Rename to ecc_get_param and make static.
(_gcry_pubkey_extraspec_ecdsa): Add ecc_generate_ext and
ecc_get_param.
2008-11-20 Werner Koch <wk@g10code.com>
* pubkey.c (pubkey_generate): Add arg DERIVEPARMS.
(gcry_pk_genkey): Parse derive-parms and pass it to above.
* rsa.c (generate_x931): New.
(rsa_generate_ext): Add arg DERIVEPARMS and call new function in
fips mode or if DERIVEPARMS is given.
* primegen.c (_gcry_derive_x931_prime, find_x931_prime): New.
2008-11-19 Werner Koch <wk@g10code.com>
* rsa.c (rsa_decrypt): Use gcry_create_nonce for blinding.
(generate): Rename to generate_std.
2008-11-05 Werner Koch <wk@g10code.com>
* md.c (md_open): Use a switch to set the Bsize.
(prepare_macpads): Fix long key case for SHA384 and SHA512.
* cipher.c (gcry_cipher_handle): Add field EXTRASPEC.
(gcry_cipher_open): Set it.
(gcry_cipher_ctl): Add private control code to disable weak key
detection and to return the current input block.
* des.c (_tripledes_ctx): Add field FLAGS.
(do_tripledes_set_extra_info): New.
(_gcry_cipher_extraspec_tripledes): Add new function.
(do_tripledes_setkey): Disable weak key detection.
2008-10-24 Werner Koch <wk@g10code.com>
* md.c (digest_table): Allow MD5 in fips mode.
(md_register_default): Take special action for MD5.
(md_enable, gcry_md_hash_buffer): Ditto.
2008-09-30 Werner Koch <wk@g10code.com>
* rijndael.c (do_setkey): Properly align "t" and "tk".
(prepare_decryption): Properly align "w". Fixes bug #936.
2008-09-18 Werner Koch <wk@g10code.com>
* pubkey.c (gcry_pk_genkey): Parse domain parameter.
(pubkey_generate): Add new arg DOMAIN and remove special case for
DSA with qbits.
* rsa.c (rsa_generate): Add dummy args QBITS, NAME and DOMAIN and
rename to rsa_generate_ext. Change caller.
(_gcry_rsa_generate, _gcry_rsa_check_secret_key)
(_gcry_rsa_encrypt, _gcry_rsa_decrypt, _gcry_rsa_sign)
(_gcry_rsa_verify, _gcry_rsa_get_nbits): Make static and remove
_gcry_ prefix.
(_gcry_pubkey_spec_rsa, _gcry_pubkey_extraspec_rsa): Adjust names.
* dsa.c (dsa_generate_ext): New.
(_gcry_dsa_generate): Replace code by a call to dsa_generate.
(_gcry_dsa_check_secret_key, _gcry_dsa_sign, _gcry_dsa_verify)
(_gcry_dsa_get_nbits): Make static and remove _gcry prefix.
(_gcry_dsa_generate2): Remove.
(_gcry_pubkey_spec_dsa): Adjust to name changes.
(_gcry_pubkey_extraspec_rsa): Add dsa_generate_ext.
2008-09-16 Werner Koch <wk@g10code.com>
* ecc.c (run_selftests): Add arg EXTENDED.
2008-09-12 Werner Koch <wk@g10code.com>
* rsa.c (test_keys): Do a bad case signature check.
* dsa.c (test_keys): Do a bad case check.
* cipher.c (_gcry_cipher_selftest): Add arg EXTENDED and pass it
to the called tests.
* md.c (_gcry_md_selftest): Ditto.
* pubkey.c (_gcry_pk_selftest): Ditto.
* rijndael.c (run_selftests): Add arg EXTENDED and pass it to the
called tests.
(selftest_fips_128): Add arg EXTENDED and run only one test
non-extended mode.
(selftest_fips_192): Add dummy arg EXTENDED.
(selftest_fips_256): Ditto.
* hmac-tests.c (_gcry_hmac_selftest): Ditto.
(run_selftests): Ditto.
(selftests_sha1): Add arg EXTENDED and run only one test
non-extended mode.
(selftests_sha224, selftests_sha256): Ditto.
(selftests_sha384, selftests_sha512): Ditto.
* sha1.c (run_selftests): Add arg EXTENDED and pass it to the
called test.
(selftests_sha1): Add arg EXTENDED and run only one test
non-extended mode.
* sha256.c (run_selftests): Add arg EXTENDED and pass it to the
called tests.
(selftests_sha224): Add arg EXTENDED and run only one test
non-extended mode.
(selftests_sha256): Ditto.
* sha512.c (run_selftests): Add arg EXTENDED and pass it to the
called tests.
(selftests_sha384): Add arg EXTENDED and run only one test
non-extended mode.
(selftests_sha512): Ditto.
* des.c (run_selftests): Add arg EXTENDED and pass it to the
called test.
(selftest_fips): Add dummy arg EXTENDED.
* rsa.c (run_selftests): Add dummy arg EXTENDED.
* dsa.c (run_selftests): Add dummy arg EXTENDED.
* rsa.c (extract_a_from_sexp): New.
(selftest_encr_1024): Check that the ciphertext does not match the
plaintext.
(test_keys): Improve tests and return an error status.
(generate): Return an error if test_keys fails.
* dsa.c (test_keys): Add comments and return an error status.
(generate): Return an error if test_keys failed.
2008-09-11 Werner Koch <wk@g10code.com>
* rsa.c (_gcry_rsa_decrypt): Return an error instead of calling
BUG in case of a practically impossible condition.
(sample_secret_key, sample_public_key): New.
(selftest_sign_1024, selftest_encr_1024): New.
(selftests_rsa): Implement tests.
* dsa.c (sample_secret_key, sample_public_key): New.
(selftest_sign_1024): New.
(selftests_dsa): Implement tests.
2008-09-09 Werner Koch <wk@g10code.com>
* hmac-tests.c (selftests_sha1): Add tests.
(selftests_sha224, selftests_sha384, selftests_sha512): Make up tests.
* hash-common.c, hash-common.h: New.
* sha1.c (selftests_sha1): Add 3 tests.
* sha256.c (selftests_sha256, selftests_sha224): Ditto.
* sha512.c (selftests_sha512, selftests_sha384): Ditto.
2008-08-29 Werner Koch <wk@g10code.com>
* pubkey.c (gcry_pk_get_keygrip): Remove the special case for RSA
and check whether a custom computation function has been setup.
* rsa.c (compute_keygrip): New.
(_gcry_pubkey_extraspec_rsa): Setup this function.
* ecc.c (compute_keygrip): New.
(_gcry_pubkey_extraspec_ecdsa): Setup this function.
2008-08-28 Werner Koch <wk@g10code.com>
* cipher.c (cipher_decrypt, cipher_encrypt): Return an error if
mode NONE is used.
(gcry_cipher_open): Allow mode NONE only with a debug flag set and
if not in FIPS mode.
2008-08-26 Werner Koch <wk@g10code.com>
* pubkey.c (pubkey_generate): Add arg KEYGEN_FLAGS.
(gcry_pk_genkey): Implement new parameter "transient-key" and
pass it as flags to pubkey_generate.
(pubkey_generate): Make use of an ext_generate function.
* rsa.c (generate): Add new arg transient_key and pass appropriate
args to the prime generator.
(_gcry_rsa_generate): Factor all code out to ...
(rsa_generate): .. new func with extra arg KEYGEN_FLAGS.
(_gcry_pubkey_extraspec_ecdsa): Setup rsa_generate.
* primegen.c (_gcry_generate_secret_prime)
(_gcry_generate_public_prime): Add new arg RANDOM_LEVEL.
2008-08-21 Werner Koch <wk@g10code.com>
* primegen.c (_gcry_generate_secret_prime)
(_gcry_generate_public_prime): Use a constant macro for the random
level.
2008-08-19 Werner Koch <wk@g10code.com>
* pubkey.c (sexp_elements_extract_ecc) [!USE_ECC]: Do not allow
allow "curve" parameter.
2008-08-15 Werner Koch <wk@g10code.com>
* pubkey.c (_gcry_pk_selftest): New.
* dsa.c (selftests_dsa, run_selftests): New.
* rsa.c (selftests_rsa, run_selftests): New.
* ecc.c (selftests_ecdsa, run_selftests): New.
* md.c (_gcry_md_selftest): New.
* sha1.c (run_selftests, selftests_sha1): New.
* sha256.c (selftests_sha224, selftests_sha256, run_selftests): New.
* sha512.c (selftests_sha384, selftests_sha512, run_selftests): New.
* des.c (selftest): Remove static variable form selftest.
(des_setkey): No on-the-fly self test in fips mode.
(tripledes_set3keys): Ditto.
* cipher.c (_gcry_cipher_setkey, _gcry_cipher_setiv):
* dsa.c (generate): Bail out in fips mode if NBITS is less than 1024.
* rsa.c (generate): Return an error code if the the requested size
is less than 1024 and we are in fpis mode.
(_gcry_rsa_generate): Take care of that error code.
* ecc.c (generate_curve): In fips mode enable only NIST curves.
* cipher.c (_gcry_cipher_selftest): New.
* sha512.c (_gcry_digest_extraspec_sha384)
(_gcry_digest_extraspec_sha512): New.
* sha256.c (_gcry_digest_extraspec_sha224)
(_gcry_digest_extraspec_sha256): New.
* sha1.c (_gcry_digest_extraspec_sha1): New.
* ecc.c (_gcry_pubkey_extraspec_ecdsa): New.
* dsa.c (_gcry_pubkey_extraspec_dsa): New.
* rsa.c (_gcry_pubkey_extraspec_rsa): New.
* rijndael.c (_gcry_cipher_extraspec_aes)
(_gcry_cipher_extraspec_aes192, _gcry_cipher_extraspec_aes256): New.
* des.c (_gcry_cipher_extraspec_tripledes): New.
* cipher.c (gcry_cipher_register): Rename to _gcry_cipher_register.
Add arg EXTRASPEC.
(dummy_extra_spec): New.
(cipher_table_entry): Add extraspec field.
* md.c (_gcry_md_register): Rename to _gcry_md_register. Add
arg EXTRASPEC.
(dummy_extra_spec): New.
(digest_table_entry): Add extraspec field.
* pubkey.c (gcry_pk_register): Rename to _gcry_pk_register. Add
arg EXTRASPEC.
(dummy_extra_spec): New.
(pubkey_table_entry): Add extraspec field.
* ac.c: Let most public functions return GPG_ERR_UNSUPPORTED in
fips mode.
* pubkey.c (pubkey_table_entry): Add field FIPS_ALLOWED and mark
appropriate algorithms.
(dummy_generate, dummy_check_secret_key, dummy_encrypt)
(dummy_decrypt, dummy_sign, dummy_verify, dummy_get_nbits): Signal
a fips error when used.
(gcry_pk_register): In fips mode do not allow to register new
algorithms.
* md.c (digest_table): Add field FIPS_ALLOWED and mark appropriate
algorithms.
(md_register_default): In fips mode register only fips algorithms.
(gcry_md_register): In fips mode do not allow to register new
algorithms.
(gcry_md_get): Signal a fips error if called.
(gcry_md_hash_buffer): Do not allow rmd160 when not in fips mode.
(md_start_debug): Disable in fips_mode.
* md.c (gcry_md_register_default): Rename to ..
(md_register_default): .. this.
(md_digest): Remove this commented fucntion.
* pubkey.c (gcry_pk_register_default): Rename to ..
(pk_register_default): .. this.
* cipher.c (cipher_table_entry): Add field FIPS_ALLOWED.
(gcry_cipher_register_default): Register only fips approved
algorithms.
(gcry_cipher_register): Do not allow to register new ciphers.
(cipher_setiv): Signal fips error.
* cipher (gcry_cipher_register_default): Rename to ..
(cipher_register_default): .. this.
(REGISTER_DEFAULT_CIPHERS): Adjust for that change.
2008-07-05 Werner Koch <wk@g10code.com>
* random-daemon.c, random.h, rndhw.c, rndunix.c, rand-internal.h
* random.c, rndegd.c, rndlinux.c, rndw32.c: Move to ../cipher.
* Makefile.am: Remove random stuff.
2008-06-24 Szakats Istvan <szaki.ms@gmail.com> (wk)
* ac.c (_gcry_ac_key_destroy, _gcry_ac_key_pair_generate): Relase
some more memory.
2008-04-22 Werner Koch <wk@g10code.com>
* rijndael.c (_gcry_aes_cfb_enc, _gcry_aes_cbc_enc)
(_gcry_aes_cfb_dec, _gcry_aes_cbc_dec): Use Padlock if possible.
2008-04-18 Werner Koch <wk@g10code.com>
* sha1.c (transform_aligned): Remove. That is will obviosuly not
work because we need a scratch working area and our internal API
does not allow to modify the buffers.
* rijndael.c: Factor tables out to ..
* rijndael-tables.h: .. new.
* ac.c (ac_data_extract): Make static.
* camellia.h [HAVE_CONFIG_H]: Include config.h.
* rndw32.c (registry_poll): Only print the performance data
problem warning once. Suggested by Simon Josefsson.
2008-03-19 Werner Koch <wk@g10code.com>
* cipher.c (gcry_cipher_open) [USE_AES]: Init bulk encryption only
if requested. Suggested by Dirk Stoecker.
2008-03-18 Werner Koch <wk@g10code.com>
* sha1.c: Include stdint.h.
(transform): Add arg NBLOCKS so that we can work on more than one
block and avoid updates of the chaining variables. Changed all
callers to use 1.
(sha1_write): Replace loop around transform.
(transform_aligned) [WORDS_BIGENDIAN]: New.
(TRANSFORM): New macro to replace all direct calls of transform.
2008-03-17 Werner Koch <wk@g10code.com>
* rijndael.c (_gcry_aes_cfb_dec): New.
(do_encrypt): Factor code out to ..
(do_encrypt_aligned): .. New.
(_gcry_aes_cfb_enc, _gcry_aes_cfb_dec): Use new function.
(do_decrypt): Factor code out to ..
(do_decrypt_aligned): .. new.
(_gcry_aes_cbc_enc, _gcry_aes_cbc_dec): New.
* cipher.c (struct gcry_cipher_handle): Put field IV into new
union U_IV to enforce proper alignment. Change all users.
(do_cfb_decrypt): Optimize.
(do_cbc_encrypt, do_cbc_decrypt): Optimize.
2008-03-15 Werner Koch <wk@g10code.com>
* rijndael.c (_gcry_aes_cfb_enc): New.
* cipher.c (struct gcry_cipher_handle): Add field ALGO and BULK.
(gcry_cipher_open): Set ALGO and BULK.
(do_cfb_encrypt): Optimize.
2008-02-18 Werner Koch <wk@g10code.com>
* rsa.c (_gcry_rsa_verify) [IS_DEVELOPMENT_VERSION]: Print
intermediate results.
2008-01-08 Werner Koch <wk@g10code.com>
* random.c (add_randomness): Do not just increment
POOL_FILLED_COUNTER but update it by the actual amount of data.
2007-12-13 Werner Koch <wk@g10code.com>
* pubkey.c (sexp_data_to_mpi): Support SHA-224.
2007-12-05 Werner Koch <wk@g10code.com>
* rijndael.c (USE_PADLOCK): Depend on ENABLE_PADLOCK_SUPPORT.
* rndhw.c (USE_PADLOCK): Ditto
* rsa.c (secret): Fixed condition test for using CRT. Reported by
Dean Scarff. Fixes bug#864.
(_gcry_rsa_check_secret_key): Return an erro if the optional
parameters are missing.
* pubkey.c (sexp_elements_extract): Add arg ALGO_NAME. Changed all
callers to pass NULL. Add hack to allow for optional RSA
parameters.
(sexp_to_key): Pass algo name to sexp_elements_extract.
2007-12-03 Werner Koch <wk@g10code.com>
* random.c (gcry_random_add_bytes): Implement it.
* rand-internal.h (RANDOM_ORIGIN_EXTERNAL): New.
2007-11-30 Werner Koch <wk@g10code.com>
* rndhw.c: New.
* rndlinux.c (_gcry_rndlinux_gather_random): Try to read 50%
directly from the hwrng.
* random.c (do_fast_random_poll): Also run the hw rng fast poll.
(_gcry_random_dump_stats): Tell whether the hw rng failed.
2007-11-29 Werner Koch <wk@g10code.com>
* rijndael.c (USE_PADLOCK): Define new macro used for ia32.
(RIJNDAEL_context) [USE_PADLOCK]: Add fields USE_PADLOCK and
PADLOCK_KEY.
(do_setkey) [USE_PADLOCK]: Enable padlock if available for 128 bit
AES.
(do_padlock) [USE_PADLOCK]: New.
(rijndael_encrypt, rijndael_decrypt) [USE_PADLOCK]: Divert to
do_padlock.
* cipher.c (cipher_context_alignment_t): New. Use it in this
module in place of PROPERLY_ALIGNED_TYPE.
(NEED_16BYTE_ALIGNED_CONTEXT): Define macro for ia32.
(struct gcry_cipher_handle): Add field HANDLE_OFFSET.
(gcry_cipher_open): Take care of increased alignment requirements.
(gcry_cipher_close): Ditto.
2007-11-28 Werner Koch <wk@g10code.com>
* sha256.c (asn224): Fixed wrong template. It happened due to a
bug in RFC4880. SHA-224 is not in the stable version of libgcrypt
so the consequences are limited to users of this devel version.
2007-10-31 Werner Koch <wk@g10code.com>
* ac.c (gcry_ac_data_new): Remove due to the visibility wrapper.
(gcry_ac_data_destroy, gcry_ac_data_copy, gcry_ac_data_length)
(gcry_ac_data_set, gcry_ac_data_get_name, gcry_ac_data_get_index)
(gcry_ac_data_to_sexp, gcry_ac_data_from_sexp)
(gcry_ac_data_clear, gcry_ac_io_init, gcry_ac_open)
(gcry_ac_close, gcry_ac_key_init, gcry_ac_key_pair_generate)
(gcry_ac_key_pair_extract, gcry_ac_key_destroy)
(gcry_ac_key_pair_destroy, gcry_ac_key_data_get)
(gcry_ac_key_test, gcry_ac_key_get_nbits, gcry_ac_key_get_grip)
(gcry_ac_data_encrypt, gcry_ac_data_decrypt, gcry_ac_data_sign)
(gcry_ac_data_verify, gcry_ac_data_encode, gcry_ac_data_decode)
(gcry_ac_mpi_to_os, gcry_ac_mpi_to_os_alloc, gcry_ac_os_to_mpi)
(gcry_ac_data_encrypt_scheme, gcry_ac_data_decrypt_scheme)
(gcry_ac_data_sign_scheme, gcry_ac_data_verify_scheme)
(gcry_ac_io_init_va): Ditto.
(gcry_ac_id_to_name, gcry_ac_name_to_id): Remove as these
deprecated functions are now implemented by visibility.c.
2007-10-26 Werner Koch <wk@g10code.com>
* rndw32.c: Disable debug flag.
2007-10-25 Werner Koch <wk@g10code.com>
* rndw32.c: Updated from current cryptlib snapshot and modified
for our use. Removed support from pre NT systems.
(slow_gatherer_windows95): Remove.
(_gcry_rndw32_gather_random): Require an NT platform.
(init_system_rng, read_system_rng, read_mbm_data): New.
(slow_gatherer_windowsNT): Rename to ...
(slow_gatherer): .. this. Read system RNG and MBM.
(registry_poll): New with code factored out from slow_gatherer.
2007-08-23 Werner Koch <wk@g10code.com>
* random.c (pool_filled_counter): New.
(add_randomness): Use it.
2007-08-22 Werner Koch <wk@g10code.com>
* rndw32.c, rndunix.c: Switched to LGPL.
2007-05-30 Werner Koch <wk@g10code.com>
* camellia.h, camellia.c: Replace by new LGPL version and adjusted
camellia.h.
2007-05-09 Marcus Brinkmann <marcus@g10code.de>
* ac.c (_gcry_ac_io_init_va, _gcry_ac_io_write, _gcry_ac_io_read):
Adjust users of gcry_ac_io_t because union is not anonymous
anymore.
2007-05-02 Werner Koch <wk@g10code.com>
* camellia-glue.c (camellia_setkey, camellia_encrypt)
(camellia_decrypt): Recalculated used stack size in called
functions.
* camellia.h: Redefine external symbols.
2007-05-02 David Shaw <dshaw@jabberwocky.com>
* Makefile.am, cipher.c: Add Camellia.
* camellia-glue.c: New. The necessary glue to interface libgcrypt
to the stock NTT Camellia distribution.
* camellia.h, camellia.c: The stock NTT Camellia distribution
(GPL).
2007-04-30 David Shaw <dshaw@jabberwocky.com>
* cipher.c: Use #if instead of #ifdef as configure defines the
USE_cipher defines as 0 for disabled.
2007-04-30 Werner Koch <wk@g10code.com>
* rndegd.c (_gcry_rndegd_set_socket_name): New.
2007-04-30 Marcus Brinkmann <marcus@g10code.de>
* ecc.c (ec2os): Fix relocation of short numbers.
* ecc.c (generate_key): Do not allocate D, which will be allocated
by GEN_K. Remove G. Fix test if g_x, g_y resp. q_x, q_y are
requested.
(_gcry_ecc_generate): Release unneeded members of SK.
* pubkey.c (sexp_to_key): Release NAME.
2007-04-28 Marcus Brinkmann <marcus@g10code.de>
* ac.c (gcry_ac_mpi): Remove member NAME_PROVIDED.
(ac_data_mpi_copy, _gcry_ac_data_set, _gcry_ac_data_get_name)
(_gcry_ac_data_get_index, ac_data_construct): Adjust handling of
NAME accordingly.
2007-04-20 Werner Koch <wk@g10code.com>
* ecc.c (domain_parms): Add standard brainpool curves.
2007-04-18 Werner Koch <wk@g10code.com>
* ecc.c (generate_curve): Implement alias mechanism.
* pubkey.c (sexp_elements_extract_ecc): New.
(sexp_to_key): Add special case for ecc.
(sexp_to_key, sexp_to_sig, sexp_to_enc, gcry_pk_genkey): Replace
name_terminated stuff by a call to _gcry_sexp_nth_string.
(gcry_pk_get_keygrip): Ditto.
2007-04-16 Werner Koch <wk@g10code.com>
* ecc.c (_gcry_ecc_generate): Renamed DUMMY to CURVE and use it.
2007-04-13 Marcus Brinkmann <marcus@g10code.de>
* ac.c (ac_data_construct): Cast const away to suppress compiler
warning.
* ecc.c (ecc_generate): Avoid compiler warning for unused argument
DUMMY.
(ecc_verify): Avoid compiler warning for unused arguments CMP and
OPAQUEV.
2007-04-06 Werner Koch <wk@g10code.com>
* sha1.c (oid_spec_sha1): Add another oid from X9.62.
2007-03-28 Werner Koch <wk@g10code.com>
* pubkey.c (gcry_pk_genkey): Do not issue misc-key-info if it is
empty.
(gcry_pk_genkey): New parameter "curve".
* ecc.c: Entirely rewritten with only a few traces of the old
code left.
(_gcry_ecc_generate): New.
(generate_key) New arg NAME.
(generate_curve): Ditto. Return actual number of NBITS.
2007-03-26 Werner Koch <wk@g10code.com>
* pubkey.c (gcry_pk_genkey): Increase size of SKEY array and add a
runtime bounds check.
2007-03-23 Werner Koch <wk@g10code.com>
* ecc.c (ecc_ctx_init, ecc_ctx_free, ecc_mod, ecc_mulm): New.
(duplicate_point, sum_points, escalar_mult): Don't use a
copy of base->p. Replaced all mpi_mulm by ecc_mulm so that we can
experiment with different algorithms.
(generate_key, check_secret_key, sign, verify): Initialize a
computation context for use by ecc_mulm.
2007-03-22 Werner Koch <wk@g10code.com>
* pubkey.c (pubkey_table): Initialize ECC.
* Makefile.am (EXTRA_libcipher_la_SOURCES): Add ecc.c.
* ecc.c: New. Heavily reformatted and changed for use in libgcrypt.
(point_init): New.
(escalar_mult): Make arg R the first arg to be similar to the mpi
functions.
(duplicate_point): Ditto
(sum_points): Ditto
(sign, verify): Remove unneeded copy operations.
(sum_points): Removed memory leaks and optimized some compares.
(verify): Simplified input check.
2007-03-14 Werner Koch <wk@g10code.com>
* random.c (MASK_LEVEL): Removed macro as it was used only at one
place. Open coded it there.
(gcry_randomize, _gcry_update_random_seed_file)
(_gcry_fast_random_poll): Factor lock code out to ..
(lock_pool, unlock_pool): .. new.
(initialize): Look the pool while allocating.
(read_random_source, do_fast_random_poll): Moved intialization to ...
(initialize): .. here.
(_gcry_enable_quick_random_gen): No more need for initialization.
(is_initialized): Moved this global flag to ..
(initialize): .. here and changed all users to unconditionally call
initialize.
(add_randomness): Remove initalization here. It simply can't
happen.
* random.c (enum random_origins): Moved to ..
* rand-internal.h: .. here.
* rndunix.c (_gcry_rndunix_gather_random): Use enum in prototype
for ORIGIN and renamed REQUESTOR to ORIGIN.
* rndegd.c (_gcry_rndegd_gather_random): Ditto.
* rndlinux.c (_gcry_rndlinux_gather_random): Ditto.
* rndw32.c (_gcry_rndw32_gather_random): Ditto.
(_gcry_rndw32_gather_random_fast): Ditto.
2007-03-13 Werner Koch <wk@g10code.com>
* random.c (enum random_origins): New.
(add_randomness): Renamed arg SOURCE to ORIGIN.
(read_random_source): Renamed arg REQUESTOR to ORIGIN.
(getfnc_gather_random): Removed static variable because this
function is only called one and thus we don't need this
optimization.
(_gcry_quick_random_gen): Removed and replaced by..
(_gcry_enable_quick_random_gen): .. this. It is onlyu used to
enable it and it does not make sense to disable it later. Changed
the only one caller too.
(get_random_bytes): Removed.
(gcry_random_bytes, gcry_random_bytes_secure): Implement in terms
of gcry_randomize.
* random-daemon.c (_gcry_daemon_get_random_bytes): Removed.
2007-02-23 Werner Koch <wk@g10code.com>
* elgamal.c (generate): Removed unused variable TEMP.
(test_keys): New arg NODIE.
(generate_using_x, _gcry_elg_generate_using_x): New.
* pubkey.c (pubkey_generate): New arg XVALUE and direct call to
the new elgamal generate fucntion.
(gcry_pk_genkey): Parse the new "xvalue" tag.
2007-02-22 Werner Koch <wk@g10code.com>
* pubkey.c (sexp_data_to_mpi): Handle dynamically allocated
algorithms. Suggested by Neil Dunbar. Fixes bug#596.
* rndw32.c (_gcry_rndw32_gather_random_fast): Make it return void.
* cipher.c (gcry_cipher_algo_name): Simplified.
* random.c: Use the daemon only if compiled with USE_RANDOM_DAEMON.
* Makefile.am (libcipher_la_SOURCES): Build random-daemon support
only if requested.
2007-02-21 Werner Koch <wk@g10code.com>
* random.c (rndpool, keypool): Make unsigned.
(mix_pool): Change char* variables to unsigned char*.
(gcry_randomize): Make arg BUFFER a void*.
(gcry_create_nonce): Ditto.
* rmd160.c (gcry_rmd160_mixblock): Make BUFFER a void*.
(_gcry_rmd160_hash_buffer): Make OUTBUF and BUFFER void*.
* sha1.c (_gcry_sha1_hash_buffer): Ditto.
* cipher.c (gcry_cipher_encrypt, cry_cipher_decrypt): Change
buffer args to void*.
(gcry_cipher_register): Make ALGORITHM_ID a int *.
* md.c (md_start_debug): Make SUFFIX a const char*. Use snprintf.
(gcry_md_debug): New.
(gcry_md_ctl): Changed arg BUFFER from unsigned char*.
* md.c (md_write): Make INBUF a const void*.
(gcry_md_write): Remove needless cast.
* crc.c (crc32_write): Make INBUF a const void*
(update_crc32, crc24rfc2440_write): Ditto.
* sha512.c (sha512_write, transform): Ditto.
* sha256.c (sha256_write, transform): Ditto.
* rmd160.c (rmd160_write, transform): Ditto.
* md5.c (md5_write, transform): Ditto.
* md4.c (md4_write, transform): Ditto.
* sha1.c (sha1_write, transform): Ditto.
* tiger.c (tiger_write, transform): Ditto.
* whirlpool.c (whirlpool_write, whirlpool_add, transform): Ditto.
* elgamal.c (elg_names): Change to a const*.
* dsa.c (dsa_names): Ditto.
* rsa.c (rsa_names): Ditto.
* pubkey.c (gcry_pk_lookup_func_name): Make ALIASES a const.
2007-02-20 Werner Koch <wk@g10code.com>
* rndlinux.c (open_device): Remove unsused arg MINOR.
2007-01-30 Werner Koch <wk@g10code.com>
* sha256.c (oid_spec_sha256): Add alias from pkcs#1.
* sha512.c (oid_spec_sha512): Ditto.
(oid_spec_sha384): Ditto.
2006-12-18 Werner Koch <wk@g10code.com>
* rndlinux.c (set_cloexec_flag): New.
(open_device): Set close-on-exit flags. Suggested by Max
Kellermann. Fixes Debian#403613.
* Makefile.am (AM_CPPFLAGS, AM_CFLAGS): Splitted and merged
Moritz' changes.
(INCLUDES): Removed.
2006-11-30 Werner Koch <wk@g10code.com>
* serpent.c (byte_swap_32): Remove trailing semicolon.
2006-11-15 Werner Koch <wk@g10code.com>
* Makefile.am (INCLUDES): Include ../src/
2006-11-03 Werner Koch <wk@g10code.com>
* random.c [HAVE_GETTIMEOFDAY]: Included sys/time.h and not
sys/times.h. Reported by Rafaël Carré.
2006-11-05 Moritz Schulte <moritz@g10code.com>
* Makefile.am (AM_CFLAGS): Added -I$(top_builddir)/src so that the
new gcrypt.h is used, not the one installed in the system.
2006-10-25 Werner Koch <wk@g10code.com>
* primegen.c (prime_generate_internal): Tweaked use of secure
memory and entropy use. Safe unused primes from the pool. Allocate
at least a pool of 30.
(save_pool_prime, get_pool_prime): New.
2006-10-23 Werner Koch <wk@g10code.com>
* ac.c (_gcry_ac_data_from_sexp): Reset sexp_tmp for failsafe
means. Release sexp_cur if needed. Reported by Dirk Stoecker.
* pubkey.c (pubkeys_registered_lock): Intialized it. It is not
realy needed because this is a mere initialization to 0 anyway.
Noted by Victor Stinner.
2006-10-17 Werner Koch <wk@g10code.com>
* dsa.c (_gcry_dsa_generate2): New.
(generate): New arg QBITS. Add sanity checks for reasonable qbits
and nbits.
* pubkey.c (gcry_pk_genkey): Parse an qbits element.
(pubkey_generate): New arg QBITS. Pass it to the DSA generation.
2006-10-05 Werner Koch <wk@g10code.com>
* md.c (gcry_md_algo_info) <get_asnoid>: Check that the algo is
available.
2006-10-04 David Shaw <dshaw@jabberwocky.com> (wk)
* tiger.c (round): Rename to tiger_round as gcc 4 has a built-in
round function that this conflicts with.
2006-09-11 Werner Koch <wk@g10code.com>
* rndw32.c (slow_gatherer_windowsNT): While adding data use the
size of the diskPerformance and not its address. Has been fixed in
GnuPG more than a year ago. Noted by Lee Fisher.
2006-08-30 Werner Koch <wk@g10code.com>
* pubkey.c (sexp_data_to_mpi): Need to allow "ripemd160" here as
this is the canonical name.
2006-08-29 Hye-Shik Chang <perky@FreeBSD.org> (wk)
* seed.c: New.
2006-08-03 Werner Koch <wk@g10code.com>
* random-daemon.c (_gcry_daemon_initialize_basics): Don't
initialize the socket. Remove arg SOCKETNAME.
(connect_to_socket): Make sure that daemon is set to -1 on error.
(call_daemon): Initialize the socket on the first call.
(_gcry_daemon_randomize, _gcry_daemon_get_random_bytes)
(_gcry_daemon_create_nonce): New arg SOCKETNAME.
* random.c (initialize): Call new daemon initializator.
(get_random_bytes, gcry_randomize, gcry_create_nonce): Pass socket
name to daemon call and reset allow_daemon on failure.
2006-07-26 Werner Koch <wk@g10code.com>
* rmd160.c (_gcry_rmd160_mixblock): Add cast to transform call.
* blowfish.c (selftest): Cast string to usnigned char*.
* primegen.c (prime_generate_internal): Cast unsigned/char*
mismatch in calling m_out_of_n.
(is_prime): Changed COUNT to unsigned int *.
* ac.c (_gcry_ac_data_copy): Initialize DATA_MPIS.
* random.c (gcry_create_nonce): Update the pid after a fork.
Reported by Uoti Urpala.
2006-07-04 Marcus Brinkmann <marcus@g10code.de>
* sha512.c: Fix typo in copyright notice.
2006-06-21 Werner Koch <wk@g10code.com>
* rsa.c (_gcry_rsa_generate): Replace xcalloc by calloc.
* pubkey.c (gcry_pk_encrypt, gcry_pk_sign): Ditto.
(sexp_to_key, sexp_to_sig, sexp_to_enc, gcry_pk_encrypt)
(gcry_pk_sign, gcry_pk_genkey, gcry_pk_get_keygrip): Ditto.
* md.c (md_copy): Ditto.
2006-04-22 Moritz Schulte <moritz@g10code.com>
* random-daemon.c (_gcry_daemon_initialize_basics): New argument:
SOCKETNAME. Passing on to connect_to_socket() if non-NULL.
(connect_to_socket, writen, readn, call_daemon): New functions.
(_gcry_daemon_randomize, _gcry_daemon_get_random_bytes)
(_gcry_daemon_create_nonce): Call call_daemon().
(RANDOM_DAEMON_SOCKET): New symbol.
(daemon_socket): New static variable.
* random.h (_gcry_daemon_initialize_basics): New parameter:
SOCKETNAME.
(_gcry_set_random_daemon_socket): New declaration.
* random.c (initialize_basics): Pass DAEMON_SOCKET_NAME to
_gcry_daemon_initialize_basics.
(_gcry_set_random_daemon_socket): New function, setting
DAEMON_SOCKET_NAME.
2006-04-01 Moritz Schulte <moritz@g10code.com>
* ac.c (eme_pkcs_v1_5_encode): Use KEY_SIZE directly, no need to
call gcry_ac_key_get_nbits.
(eme_pkcs_v1_5_decode): Likewise.
(ac_es_dencode_prepare_pkcs_v1_5): Fill options_em structure with
key_size.
(_gcry_ac_data_dump, gcry_ac_data_dump): New functions.
(_gcry_ac_data_to_sexp, _gcry_ac_data_from_sexp): More or less
rewritten; changed S-Expression format so that it matches the one
used in pubkey.c.
2006-03-15 Werner Koch <wk@g10code.com>
* random-daemon.c: New.
* random.c (_gcry_use_random_daemon): New.
(get_random_bytes, gcry_randomize, gcry_create_nonce): Try
diverting to the daemon functions.
2006-03-14 Werner Koch <wk@g10code.com>
* random.c (lock_seed_file): New.
(read_seed_file, _gcry_update_random_seed_file): Use it.
* random.c (gcry_create_nonce): Detect a fork and re-seed.
(read_pool): Fixed the fork detection; it used to work only for
multi-threaded processes.
2006-03-12 Brad Hards <bradh@frogmouth.net> (wk)
* md.c (md_open): Use new variable macpads_Bsize instead of
hardwiring the block size. Changed at all places.
2006-03-10 Brad Hards <bradh@frogmouth.net> (wk, patch 2005-04-22)
* md.c, sha256.c: Add support for SHA-224.
(sha224_init): New.
2006-01-18 Brad Hards <bradh@frogmouth.net> (wk 2006-03-07)
* cipher.c (cipher_encrypt, cipher_decrypt, do_ofb_encrypt)
(do_ofb_decrypt, gcry_cipher_open): Implement Output Feedback Mode.
2005-11-02 Moritz Schulte <moritz@g10code.com>
* pubkey.c (gcry_pk_algo_name): Return "?" instead of NULL for
unknown algorithm IDs.
* cipher.c (cipher_algo_to_string): Likewise.
2005-11-01 Moritz Schulte <moritz@g10code.com>
* pubkey.c (gcry_pk_algo_info): Don't forget to break after switch
case.
2005-09-19 Werner Koch <wk@g10code.com>
* dsa.c (generate): Add preliminary support for 2 and 4 keys.
Return an error code if the key size is not supported.
(_gcry_dsa_generate): Return an error.
2005-08-22 Werner Koch <wk@g10code.com>
* primegen.c (check_prime): New arg RM_ROUNDS.
(prime_generate_internal): Call it here with 5 rounds as used
before.
(gcry_prime_check): But here with 64 rounds.
(is_prime): Make sure never to use less than 5 rounds.
2005-04-16 Moritz Schulte <moritz@g10code.com>
* ac.c (_gcry_ac_init): New function.
2005-04-12 Moritz Schulte <moritz@g10code.com>
* ac.c (_gcry_ac_io_write, _gcry_ac_io_read): Initialize err to
make the compiler happy.
Always use errno, now that gcry_malloc() is guaranteed to set
errno on failure.
(_gcry_ac_data_to_sexp): Don't forget to goto out after error in
loop.
(_gcry_ac_data_to_sexp): Remove unused variable: mpi_list;
(_gcry_ac_data_to_sexp): Always deallocate sexp_buffer.
(_gcry_ac_data_from_sexp): Don't forget to initialize data_set_new.
(_gcry_ac_data_from_sexp): Handle special case, which is
necessary, since gcry_sexp_nth() does not distinguish between
"element does not exist" and "element is the empty list".
(_gcry_ac_io_init_va): Use assert to make sure that mode and type
are correct.
Use gcry_error_t types where gcry_err_code_t types have been used
before.
2005-04-11 Moritz Schulte <moritz@g10code.com>
* ac.c (_gcry_ac_data_sign_scheme): Don't forget to initialize
buffer.
* whirlpool.c: New file.
* md.c (digest_table): Add whirlpool.
* Makefile.am (EXTRA_libcipher_la_SOURCES): Added: whirlpool.c.
2005-03-30 Moritz Schulte <moritz@g10code.com>
* ac.c (_gcry_ac_data_from_sexp): Use length of SEXP_CUR, not
length of SEXP; do not forget to set SEXP_TMP to NULL after it has
been released.
(struct gcry_ac_mpi): New member: name_provided.
(_gcry_ac_data_set): Rename variable `name_final' to `name_cp';
remove const qualifier; change code to not cast away const
qualifiers; use name_provided member as well.
(_gcry_ac_data_set, _gcry_ac_data_get_name): Use name_provided
member of named mpi structure.
(gcry_ac_name_to_id): Do not forget to initialize err.
(_gcry_ac_data_get_index): Do not forget to initialize mpi_return;
use gcry_free() instead of free(); remove unnecessary cast; rename
mpi_return and name_return to mpi_cp and name_cp; adjust code.
(ac_data_mpi_copy): Do not cast away const qualifier.
(ac_data_values_destroy): Likewise.
(ac_data_construct): Likewise.
(ac_data_mpi_copy): Initialize flags to GCRY_AC_FLAG_DEALLOC.
(ac_data_extract): Use GCRY_AC_FLAG_DEALLOC instead of
GCRY_AC_FLAG_COPY.
(_gcry_ac_io_init_va, _gcry_ac_io_init, gcry_ac_io_init)
(gcry_ac_io_init_va, _gcry_ac_io_write, _gcry_ac_io_read)
(_gcry_ac_io_read_all, _gcry_ac_io_process): New functions.
(gry_ac_em_dencode_t): Use gcry_ac_io_t in prototype instead of
memroy strings directly; adjust encode/decode functions to use io
objects.
(emsa_pkcs_v1_5_encode_data_cb): New function ...
(emsa_pkcs_v1_5_encode): ... use it here.
(ac_data_dencode): Use io objects.
(_gcry_ac_data_encode, _gcry_ac_data_decode, gcry_ac_data_encode)
(gcry_ac_data_decode): Likewise.
(_gcry_ac_data_encrypt_scheme, gcry_ac_data_encrypt_scheme)
(_gcry_ac_data_decrypt_scheme, gcry_ac_data_decrypt_scheme)
(_gcry_ac_data_sign_scheme, gcry_ac_data_sign_scheme)
(_gcry_ac_data_verify_scheme, gcry_ac_data_verify_scheme):
Likewise.
2005-03-23 Werner Koch <wk@g10code.com>
* rndw32.c (_gcry_rndw32_gather_random_fast): While adding data
use the size of the object and not the one of its address. Bug
reported by Sascha Kiefer.
2005-03-19 Moritz Schulte <moritz@g10code.com>
* cipher.c (do_cbc_encrypt): Be careful to not overwrite data,
which is to be used later on. This happend, in case CTS is
enabled and OUTBUF is equal to INBUF.
2005-02-25 Werner Koch <wk@g10code.com>
* pubkey.c (gcry_pk_get_keygrip): Allow for shadowed-private-key.
2005-02-13 Moritz Schulte <moritz@g10code.com>
* serpent.c: Updated from 1.2 branch:
s/u32_t/u32/ and s/byte_t/byte/. Too match what we have always
used and are using in all other files too
(serpent_test): Moved prototype out of a fucntion.
2005-02-07 Moritz Schulte <moritz@g10code.com>
* ac.c: Major parts rewritten.
* pubkey.c (_gcry_pk_get_elements): New function.
2004-12-09 Werner Koch <wk@g10code.com>
* serpent.c (serpent_setkey): Moved prototype of serpent_test to
outer scope.
2004-09-11 Moritz Schulte <moritz@g10code.com>
* pubkey.c (pubkey_table): Added an alias entry for GCRY_PK_ELG_E.
2004-08-23 Moritz Schulte <moritz@g10code.com>
* ac.c: Do not include <assert.h>.
* rndegd.c: Likewise.
* sha1.c: Likewise.
* rndunix.c: Likewise.
* rndlinux.c: Likewise.
* rmd160.c: Likewise.
* md5.c: Likewise.
* md4.c: Likewise.
* cipher.c: Likewise.
* crc.c: Likewise.
* blowfish.c: Likewise.
* pubkey.c (dummy_generate, dummy_check_secret_key)
(dummy_encrypt, dummy_decrypt, dummy_sign, dummy_verify): Return
err code GPG_ERR_NOT_IMPLEMENTED instead of aborting through
log_bug().
(dummy_get_nbits): Return 0 instead of aborting though log_bug().
2004-08-19 Werner Koch <wk@g10code.de>
* pubkey.c (sexp_data_to_mpi): Changed the zero random byte
substituting code to actually do clever things. Thanks to
Matthias Urlichs for noting the implementation problem.
2004-08-09 Moritz Schulte <moritz@g10code.com>
* pubkey.c (gcry_pk_sign): Fixed memory leak; fix provided by
Modestas Vainius.
2004-07-16 Werner Koch <wk@gnupg.org>
* rijndael.c (do_encrypt): Fix alignment problem. Bugs found by
Matthias Urlichs.
(do_decrypt): Ditto.
(keySched, keySched2): Use 2 macros along with unions in the key
schedule context.
2004-07-14 Moritz Schulte <moritz@g10code.com>
* rsa.c (_gcry_rsa_decrypt): Don't forget to free "a". Thanks to
Nikos Mavroyanopoulos.
2004-05-09 Werner Koch <wk@gnupg.org>
* random.c (read_pool): Mix the PID in to better protect after a
fork.
2004-07-04 Moritz Schulte <moritz@g10code.com>
* serpent.c: Use "u32_t" instead of "unsigned long", do not
declare S-Box variables as "register". Fixes failure on
OpenBSD/sparc64, reported by Nikolay Sturm.
2004-05-07 Werner Koch <wk@gnupg.org>
* random.c (initialize): Factored out some code to ..
(initialize_basics): .. new function.
(_gcry_random_initialize): Just call initialize_basics unless the
new arg FULL is set to TRUE.
(_gcry_fast_random_poll): Don't do anything unless the random
system has been really initialized.
2004-05-07 Moritz Schulte <moritz@g10code.de>
* ac.c (gcry_ac_open): Do not dereference NULL pointer. Reported
by Umberto Salsi.
2004-02-20 Werner Koch <wk@gnupg.org>
* primegen.c (check_prime): New args CB_FUNC and CB_ARG; call them
at different stages. Pass these arguments through all callers.
2004-02-06 Werner Koch <wk@gnupg.org>
* des.c: Add a new OID as used by pkcs#12.
* rfc2268.c: New. Taken from libgcrypt.
* cipher.c: Setup the rfc2268 algorithm.
2004-01-25 Moritz Schulte <mo@g10code.com>
* primegen.c (prime_generate_internal): Do not forget to free
`q_factor'; fixed by Brieuc Jeunhomme.
(prime_generate_internal): Do not forget to free `prime'.
2004-01-14 Moritz Schulte <mo@g10code.com>
* ac.c (gcry_ac_data_set): New argument: flags; slightly
rewritten.
(gcry_ac_data_get_name, gcry_ac_data_get_index): Likewise.
(gcry_ac_key_pair_generate): New argument: misc_data; modified
order of arguments.
(gcry_ac_key_test): New argument: handle.
(gcry_ac_key_get_nbits, gcry_ac_key_get_grip): Likewise.
Use GCRY_AC_FLAG_NO_BLINDING instead of
GCRY_AC_DATA_FLAG_NO_BLINDING.
(gcry_ac_mpi): New member: flags.
(gcry_ac_data_search, gcry_ac_data_add): Removed functions.
2003-12-22 Werner Koch <wk@gnupg.org>
* primegen.c (is_prime): Release A2.
2003-12-19 Werner Koch <wk@gnupg.org>
* md.c: Moved a couple of functions down below the data structure
definitions.
(struct gcry_md_context): New field ACTUAL_HANDLE_SIZE.
(md_open): Set it here.
(strcut gcry_md_list): New field ACTUAL_STRUCT_SIZE.
(md_enable): Set it here.
(md_close): Wipe the context memory.
secure memory.
* cipher.c (struct gcry_cipher_handle): New field ACTUAL_HANDLE_SIZE.
(gcry_cipher_open): Set it here.
(gcry_cipher_close): Use it to always wipe out the handle data.
* ac.c (gcry_ac_open): Make sure HANDLE gets initialized even when
the function is not successful.
(gcry_ac_close): Allow a NULL handle.
(gcry_ac_key_destroy, gcry_ac_key_pair_destroy): Ditto.
(gcry_ac_key_get_grip): Return INV_OBJ on error.
* primegen.c (prime_generate_internal): Fixed error code for
failed malloc. Replaced the !err if chain by gotos.
(gcry_prime_group_generator): Remove the extra sanity check.
* md.c: Minor code and comment cleanups.
2003-12-16 Werner Koch <wk@gnupg.org>
* primegen.c (gen_prime): Doc fix. Thanks to Newton Hammet.
2003-12-11 Werner Koch <wk@gnupg.org>
* rndunix.c (slow_poll): Don't use #warning but #error.
* rndegd.c: Changed indentation.
(my_make_filename): Removd the var_arg cruft becuase we
don't need it here. Changed caller.
* rndlinux.c: Changed indentation.
(open_device): Remove the superfluous stat call and clarify
comment.
* rsa.c: Changed indentation.
(secret): Use the standard algorithm if p, q and u are not
available.
(rsa_blind, rsa_unblind): Renamed from _gcry_rsa_blind,
_gcry_rsa_unblind and moved more to the top.
* md4.c: Changed indentation. Removed unnecessary casts.
* md5.c, rmd160.c, sha1.c, tiger.c: Ditto.
* rijndael.c, twofish.c: Ditto.
* serpent.c: Removed unnecessary casts.
* sha256.c, sha512.c: Ditto.
2003-12-09 Werner Koch <wk@gnupg.org>
* dsa.c: Unified indentation style.
* elgamal.c: Ditto.
* des.c (des_key_schedule): Code beautifications.
* blowfish.c: Changed indentation style.
* cast5.c (do_cast_setkey): Ditto.
* pubkey.c (gcry_pk_encrypt): Replaced the chain of if(!err) tests
by straightforward gotos. Other cleanups.
(gcry_pk_decrypt): Ditto.
(gcry_pk_sign): Ditto.
(gcry_pk_verify): Ditto.
(gcry_pk_genkey): Ditto. Use strtoul instead of strtol.
(gcry_pk_ctl): Use GPG_ERR_INV_ARG to indicate bad arguments.
2003-12-07 Werner Koch <wk@gnupg.org>
* pubkey.c (gcry_pk_register_default): Undef the helper macro.
(gcry_pk_map_name): Allow NULL for string.
(sexp_to_key): Use memcpy and not strncpy. Use gcry_free and not
free.
(sexp_to_sig): Ditto.
(sexp_to_enc): Ditto. Replaced the chain of if(!err) tests by
straightforward gotos.
2003-12-05 Werner Koch <wk@gnupg.org>
* cipher.c: Documentation cleanups.
(gcry_cipher_mode_from_oid): Allow NULL for STRING.
2003-12-03 Werner Koch <wk@gnupg.org>
* elgamal.c (sign, do_encrypt, gen_k): Make sure that a small K is
only used for encryption.
2003-11-18 Werner Koch <wk@gnupg.org>
* random.h (rndw32_set_dll_name): Removed unused prototype.
* Makefile.am (EXTRA_DIST): Added Manifest.
2003-11-11 Werner Koch <wk@gnupg.org>
* Manifest: New.
2003-11-04 Werner Koch <wk@gnupg.org>
* md.c (gcry_md_hash_buffer): Use shortcut for SHA1
* sha1.c (_gcry_sha1_hash_buffer): New.
* random.c: Reformatted most functions.
(mix_pool): Moved the failsafe_digest from global
scope to here.
(do_fast_random_poll): Use the generic fucntions even if a fast
gathering function has been used.
(read_pool): Detect a fork and retry.
(gcry_randomize, get_random_bytes): Don't distinguish anymore
between weak and strong random.
(gcry_create_nonce): New.
2003-10-31 Werner Koch <wk@gnupg.org>
* rndw32.c (slow_gatherer_windowsNT): Use a plain buffer for the
disk performance values and not the W32 API structure.
* dsa.c (verify): s/exp/ex/ due to shadowing of a builtin.
* elgamal.c (verify): Ditto.
* ac.c (gcry_ac_data_get_index): s/index/idx/
(gcry_ac_data_copy_internal): Remove the cast in _gcry_malloc.
(gcry_ac_data_add): Must use gcry_realloc instead of realloc.
* pubkey.c (sexp_elements_extract): s/index/idx/ as tribute to the
forehackers.
(gcry_pk_encrypt): Removed shadowed definition of I. Reordered
arguments to malloc for clarity.
(gcry_pk_sign, gcry_pk_genkey): Ditto.
* primegen.c (prime_generate_internal): s/random/randomlevel/.
2003-10-27 Moritz Schulte <mo@g10code.com>
* pubkey.c (gcry_pk_encrypt): Don't forget to deallocate pkey.
2003-10-27 Werner Koch <wk@gnupg.org>
* random.c (gcry_random_add_bytes): Return if buflen is zero to
avoid gcc warning about unsed parameter.
(MASK_LEVEL): Simplified; does now work for signed and unsigned
w/o warnings.
* md.c (md_start_debug): Removed the const from SUFFIX, because
this function is called from the control fucntion which does not
require const.
Prefixed all (pubkey,digest,cipher}_spec_* globale variables with
_gcry_.
* ac.c (ac_key_identifiers): Made static.
* random.c (getfnc_gather_random,getfnc_fast_random_poll): Move
prototypes to ..
* rand-internal.h: .. here
* random.c (getfnc_gather_random): Include rndw32 gatherer.
* rndunix.c, rndw32.c, rndegd.c: Include them here.
* rndlinux.c (_gcry_rndlinux_gather_random): Prepend the _gcry_
prefix. Changed all callers.
* rndegd.c (_gcry_rndegd_gather_random): Likewise.
(_gcry_rndegd_connect_socket): Likewise.
* rndunix.c (_gcry_rndunix_gather_random): Likewise.
(waitpid): Made static.
* rndw32.c: Removed the old and unused winseed.dll cruft.
(_gcry_rndw32_gather_random_fast): Renamed from
gather_random_fast.
(_gcry_rndw32_gather_random): Renamed from gather_random. Note,
that the changes 2003-04-08 somehow got lost.
* sha512.c (sha512_init, sha384_init): Made static.
* cipher.c (do_ctr_decrypt): Removed "return" from this void
function.
2003-10-24 Moritz Schulte <mo@g10code.com>
* serpent.c: Fix an issue on big-endian systems.
* rndw32.c: Removed IS_MODULE -cruft.
* rndlinux.c (rndlinux_gather_random): Likewise.
2003-10-10 Werner Koch <wk@gnupg.org>
* primegen.c (gen_prime): Bail out if NBITS is less than 16.
(prime_generate_internal): Initialize prime variable to suppress
compiler warning. Check pbits, initialize qbits when passed as
zero.
* primegen.c (prime_generate_internal): New arg
ALL_FACTORS. Changed all callers.
(gcry_prime_generate): Make the factors arg optional. Request
all_factors. Make sure PRIME is set to NULL even on error.
(gcry_prime_group_generator): New.
(gcry_prime_release_factors): New.
2003-10-06 Werner Koch <wk@gnupg.org>
* primegen.c (gen_prime): Assert that NBITS is never zero, it
would cause a segv.
2003-09-28 Moritz Schulte <mo@g10code.com>
* ac.c: Include "cipher.h".
2003-09-27 Moritz Schulte <mo@g10code.com>
* rndegd.c (do_read): Return nread instead of nbytes; thanks to
Michael Caerwyn.
2003-09-04 Werner Koch <wk@gnupg.org>
* pubkey.c (_gcry_pk_aliased_algo_name): New.
* ac.c (gcry_ac_open): Use it here.
* Makefile.am (EXTRA_libcipher_la_SOURCES): Add serpent.c
2003-09-02 Moritz Schulte <mo@g10code.com>
* primegen.c (gcry_prime_check, gcry_prime_generate): New
functions.
(prime_generate_internal): New function, based on
_gcry_generate_elg_prime.
(_gcry_generate_elg_prime): Rewritten as a wrapper for
prime_generate_internal.
2003-08-28 Werner Koch <wk@gnupg.org>
* pubkey.c (gcry_pk_encrypt): Don't include the flags list in the
return value. This does not make sense and breaks any programs
parsing the output strictly (e.g. current gpgsm).
(gcry_pk_encrypt): If aliases for the algorithm name exists, take
the first one instead of the regular name to adhere to SPKI
conventions.
(gcry_pk_genkey): Ditto.
(gcry_pk_sign): Ditto. Removed unused KEY_ALGO_NAME.
2003-08-19 Moritz Schulte <mo@g10code.com>
* cipher.c: Add support for Serpent
* serpent.c: New file.
2003-08-10 Moritz Schulte <moritz@g10code.com>
* rsa.c (_gcry_rsa_blind, _gcry_rsa_unblind): Declare static.
2003-08-09 Timo Schulz <twoaday@freakmail.de>
* random.c (getfnc_gather_random): Don't check NAME_OF_DEV_RANDOM
two times, but also the NAME_OF_DEV_URANDOM device.
2003-08-08 Moritz Schulte <moritz@g10code.com>
* pubkey.c (sexp_to_enc): Fixed extraction of S-Expression: do not
fail if no `flags' sub S-Expression is found.
2003-07-27 Werner Koch <wk@gnupg.org>
* md.c (gcry_md_lookup_func_oid): Allow for empty OID lists.
2003-07-23 Moritz Schulte <moritz@g10code.com>
* ac.c (gcry_ac_data_construct): New argument: include_flags, only
include `flags' S-expression, if include_flags is true. Adjust
callers. Thanks for triggering a bug caused by `flags'
sub-S-expression where they are not expected to Ralf Schneider.
2003-07-21 Moritz Schulte <moritz@g10code.com>
* pubkey.c (gcry_pk_lookup_func_name): Use new member name
`aliases' instead of `sexp_names'.
* ac.c (gcry_ac_key_data_get): New function.
* cipher.c (gcry_cipher_lookup_func_name): Fix return value.
2003-07-20 Moritz Schulte <moritz@g10code.com>
* blowfish.c: Adjusted for new gcry_cipher_spec_t structure.
* cast5.c: Likewise.
* twofish.c: Likewise.
* arcfour.c: Likewise.
* rijndael.c (rijndael_oids, rijndael192_oids, rijndael256_oids):
New variables, adjust for new gcry_cipher_spec_t structure.
* des.c (oids_tripledes): New variable, adjust for new
gcry_cipher_spec_t structure.
* md.c (oid_table): Removed.
* tiger.c (oid_spec_tiger): New variable.
(digest_spec_tiger): Adjusted for new gry_md_spec_t structure.
* sha512.c (oid_spec_sha512): New variable.
(digest_spec_sha512): Adjusted for new gry_md_spec_t structure.
* sha512.c (oid_spec_sha384): New variable.
(digest_spec_sha384): Adjusted for new gry_md_spec_t structure.
* sha256.c (oid_spec_sha256): New variable.
(digest_spec_sha256): Adjusted for new gry_md_spec_t structure.
* sha1.c (oid_spec_sha1): New variable.
(digest_spec_sha1): Adjusted for new gry_md_spec_t structure.
* rmd160.c (oid_spec_rmd160): New variable.
(digest_spec_rnd160): Adjusted for new gry_md_spec_t structure.
* md5.c (oid_spec_md5): New variable.
(digest_spec_md5): Adjusted for new gry_md_spec_t structure.
* md4.c (oid_spec_md4): New variable.
(digest_spec_md4): Adjusted for new gry_md_spec_t structure.
* crc.c (digest_spec_crc32, digest_spec_crc32_rfc1510,
digest_spec_crc32_rfc2440): Adjusted for new gry_md_spec_t
structure.
2003-07-19 Moritz Schulte <moritz@g10code.com>
* md.c (gcry_md_lookup_func_oid): New function.
(search_oid): New function, copied from cipher.c.
(gcry_md_map_name): Adjust for new search_oid_interface.
* cipher.c (oid_table): Removed table.
(gcry_cipher_lookup_func_oid): New function.
(search_oid): Rewritten to use the module functions.
(gcry_cipher_map_name): Adjust for new search_oid interface.
(gcry_cipher_mode_from_oid): Likewise.
2003-07-18 Werner Koch <wk@gnupg.org>
* md.c (gcry_md_hash_buffer): Convert ERR to gpg_error_t in
gpg_strerror.
2003-07-14 Moritz Schulte <moritz@g10code.com>
* cipher.c (gcry_cipher_lookup_func_name): Also check the cipher
name aliases, not just the primary name.
(gcry_cipher_map_name): Remove kludge for aliasing Rijndael to
AES.
* arcfour.c, blowfish.c, cast5.c, des.c, twofish.c: Adjust cipher
specification structures.
* rijndael.c (rijndael_names, rijndael192_names,
rijndael256_names): New variables, use them in the cipher
specifications.
* rmd160test.c: Removed file.
* ac.c, arcfour.c, blowfish.c, cast5.c, cipher.c, des.c, dsa.c,
elgamal.c, md.c, pubkey.c, random.c, rijndael.c, rsa.c, twofish.c:
Used gcry_err* wrappers for libgpg symbols.
* primegen.c (gen_prime): Correct the order arguments to
extra_check.
2003-07-12 Moritz Schulte <moritz@g10code.com>
* ac.c: Replaced all public occurences of gpg_error_t with
gcry_error_t.
* cipher.c: Likewise.
* md.c: Likewise.
* pubkey.c: Likewise.
* random.c: Likewise.
* cipher.c: Added support for TWOFISH128.
2003-07-08 Moritz Schulte <moritz@g10code.com>
* ac.c (gcry_ac_data_copy_internal): New function, based on
gcry_ac_data_copy.
(gcry_ac_data_copy): Made public, use gcry_ac_data_copy_internal.
(gcry_ac_key_init): Use gcry_ac_data_copy_internal.
2003-07-07 Moritz Schulte <moritz@g10code.com>
* ac.c (gcry_ac_data_set): Only release old MPI value if it is
different from the new value. Bug reported by Simon Josefsson
<jas@extundo.com>.
* pubkey.c (gcry_pk_list): New function.
* md.c (gcry_md_list): New function.
* ac.c (gcry_ac_key_pair_generate): Fix calculation of format
string size.
2003-07-05 Moritz Schulte <moritz@g10code.com>
* md.c: Named struct of digest_table `digest_table_entry'.
(digest_table_entry): New member: algorithm; filled in.
(digest_table_entry): Removed unused member: flags.
(gcry_md_register): New argument: algorithm_id, filled in.
(gcry_md_register_default): Used algorithm ID from module
structure.
(gcry_md_map_name): Likewise.
(md_enable): Likewise.
(md_read): Likewise.
(gcry_md_info): Likewise.
* pubkey.c: Named truct for pubkey_table `pubkey_table_entry'.
(pubkey_table_entry): New member: algorithm; filled in.
(gcry_pk_register_default): Used algorithm ID from pubkey_table.
(gcry_pk_register): New argument: algorithm_id, filled in.
(gcry_pk_map_name): Used algorithm ID from module structure.
(gcry_pk_decrypt): Likewise.
(gcry_pk_encrypt): Likewise.
(gcry_pk_verify): Likewise.
(gcry_pk_sign): Likewise.
(gcry_pk_testkey): Likewise.
(gcry_pk_genkey): Likewise.
(gcry_pk_get_nbits): Likewise.
(sexp_to_key): Removed unused variable: algo.
(sexp_to_sig): Likewise.
* cipher.c: Named struct for cipher_table `cipher_table_entry'.
(cipher_table_entry): New member: algorithm; filled in.
(gcry_cipher_register_default): Used algorithm ID from
cipher_table.
(gcry_cipher_register): New argument: algorithm_id, filled in.
(gcry_cipher_map_name): Used algorithm ID from module structure.
* arcfour.c (cipher_spec_arcfour): Removed algorithm ID.
* blowfish.c (cipher_spec_blowfish): Likewise.
* cast5.c (cipher_spec_cast5): Likewise.
* crc.c (digest_spec_crc32): Likewise.
* crc.c (digest_spec_crc32_rfc1510): Likewise.
* crc.c (digest_spec_crc32_rfc2440): Likewise.
* des.c (cipher_spec_des): Likewise.
* des.c (cipher_spec_tripledes): Likewise.
* dsa.c (pubkey_spec_dsa): Likewise.
* elgamal.c (pubkey_spec_elg): Likewise.
* md4.c (digest_spec_md4): Likewise.
* md5.c (digest_spec_md5): Likewise.
* aes.c (cipher_spec_aes): Likewise.
* aes.c (cipher_spec_aes192): Likewise.
* aes.c (cipher_spec_aes256): Likewise.
* rsa.c (pubkey_spec_rsa): Likewise.
* sha1.c (digest_spec_sha1): Likewise.
* sha256.c (digest_spec_sha256): Likewise.
* sha512.c (digest_spec_sha512): Likewise.
* tiger.c (digest_spec_tiger): Likewise.
* twofish.c (cipher_spec_twofish): Likewise.
* twofish.c (cipher_spec_twofish128): Likewise.
* Makefile.am (EXTRA_libcipher_la_SOURCES): Fix list of source
files; reported by Simon Josefsson <jas@extundo.com>.
* pubkey.c: Replaced all occurences of `id' with `algorithm',
since `id' is a keyword in obj-c.
* md.c: Likewise.
* cipher.c: Likewise.
* crc.c, md4.c, md5.c, rmd160.c, sha1.c, sha256.c, tiger.c:
Replaced all occurences of gcry_digest_spec_t with gcry_md_spec_t.
* dsa.c, rsa.c, elgamal.c: Replaced all occurencens of
gcry_pubkey_spec_t with gcry_pk_spec_t.
* md.c: Replaced all occurences of gcry_digest_spec_t with
gcry_md_spec_t.
(gcry_digest_register_default): Renamed to ...
(gcry_md_register_default): ... this; adjusted callers.
(gcry_digest_lookup_func_name): Renamed to ...
(gcry_md_lookup_func_name): ... this; adjusted callers.
(gcry_digest_lookup_name): Renamed to ...
(gcry_md_lookup_name): ... this; adjusted callers.
(gcry_digest_register): Renamed to ...
(gcry_md_register): ... this.
(gcry_digest_unregister): Renamed to ...
(gcry_md_unregister): ... this.
* pubkey.c (gcry_pubkey_register): Renamed to ...
(gcry_pk_register): ... this.
(gcry_pubkey_unregister): Renamed to ...
(gcry_pk_unregister): ... this.
Replaced all occurences of gcry_pubkey_spec_t with gcry_pk_spec_t.
(gcry_pubkey_register_default): Renamed to ...
(gcry_pk_register_default): ... this; adjusted callers.
(gcry_pubkey_lookup_func_name): Renamed to ...
(gcry_pk_lookup_func_name): ... this; adjusted callers.
(gcry_pubkey_lookup_name): Renamed to ...
(gcry_pk_lookup_name): ... this; adjusted callers.
* md.c (gcry_md_hash_buffer): Fix error checking. Thanks to Simon
Josefsson <jas@extunde.com>.
2003-07-04 Moritz Schulte <moritz@g10code.com>
* cipher.c (gcry_cipher_list): New function.
2003-07-01 Moritz Schulte <moritz@g10code.com>
* pubkey.c (sexp_to_sig): Accept a `flags' S-expression to be more
consistent with sexp_to_enc.
2003-06-30 Moritz Schulte <moritz@g10code.com>
* Makefile.am (libcipher_la_SOURCES): Added: ac.c.
* pubkey.c (_gcry_pk_module_lookup): New function.
(_gcry_pk_module_release): New function.
2003-06-29 Moritz Schulte <moritz@g10code.com>
* ac.c: New file.
2003-06-26 Werner Koch <wk@gnupg.org>
* md.c (gcry_md_hash_buffer): Trigger BUG correcly with new API.
2003-06-19 Werner Koch <wk@gnupg.org>
* md.c (gcry_md_is_enabled): Fixed.
2003-06-18 Werner Koch <wk@gnupg.org>
* cipher.c (gcry_cipher_get_algo_keylen): New.
(gcry_cipher_get_algo_blklen): New.
2003-06-18 Moritz Schulte <moritz@g10code.com>
* arcfour.c, cipher.c, blowfish.c, md.c, cast5.c, pubkey.c, crc.c,
des.c, dsa.c, elgamal.c, md4.c, md5.c, random.c, rijndael.c,
rmd160.c, rsa.c, sha1.c, sha256.c, sha512.c, tiger.c, twofish.c:
Replaced older types GcryDigestSpec, GcryCipherSpec and
GcryPubkeySpec with newer types: gcry_digest_spec_t,
gcry_cipher_spec_t and gcry_pubkey_spec_t.
* md.c (gcry_digest_id_new): Removed function.
(gcry_digest_register): Removed code for generating a new module
ID.
* pubkey.c (gcry_pubkey_id_new): Removed function.
(gcry_pubkey_register): Removed code for generating a new module
ID.
* cipher.c, md.c, pubkey.c: Replace old type GcryModule with newer
one: gcry_module_t.
(gcry_cipher_id_new): Removed function.
(gcry_cipher_register): Removed code for generating a new module
ID.
* cipher.c (gcry_cipher_register): Adjust call to
_gcry_module_add.
(gcry_cipher_register_default): Likewise.
* pubkey.c (gcry_pubkey_register_default): Likewise.
(gcry_pubkey_register): Likewise.
* md.c (gcry_digest_register_default): Likewise.
(gcry_digest_register): Likewise.
* md.c (gcry_digest_lookup_func_id): Removed function.
(gcry_digest_lookup_id): Likewise.
(gcry_digest_id_new): Use _gcry_module_lookup_id instead of
gcry_digest_lookup_id.
(digest_algo_to_string): Likewise.
(check_digest_algo): Likewise.
(md_enable): Likewise.
(md_digest_length): Likewise.
(md_asn_oid): Likewise.
* pubkey.c (gcry_pubkey_lookup_id): Removed function.
(gcry_pubkey_lookup_func_id): Likewise.
(gcry_pubkey_id_new): Use _gcry_module_lookup_id instead of
gcry_pubkey_id_new.
(gcry_pk_algo_name): Likewise.
(disable_pubkey_algo): Likewise.
(check_pubkey_algo): Likewise.
(pubkey_get_npkey): Likewise.
(pubkey_get_nskey): Likewise.
(pubkey_get_nsig): Likewise.
(pubkey_get_nenc): Likewise.
(pubkey_generate): Likewise.
(pubkey_check_secret_key): Likewise.
(pubkey_encrypt): Likewise.
(pubkey_decrypt): Likewise.
(pubkey_sign): Likewise.
(pubkey_verify): Likewise.
(gcry_pk_algo_info): Likewise.
* cipher.c (gcry_cipher_lookup_func_id): Removed function.
(gcry_cipher_lookup_id): Likewise.
(cipher_algo_to_string): use _gcry_module_lookup_id instead of
gcry_cipher_lookup_id.
(disable_cipher_algo): Likewise.
(check_cipher_algo): Likewise.
(cipher_get_blocksize): Likewise.
(gcry_cipher_open): Likewise.
(gcry_cipher_id_new): Likewise.
2003-06-17 Moritz Schulte <moritz@g10code.com>
* Makefile.am (GCRYPT_MODULES): Set to @GCRYPT_CIPHERS@,
@GCRYPT_PUBKEY_CIPHERS@, @GCRYPT_DIGESTS@ and @GCRYPT_RANDOM@.
(libcipher_la_DEPENDENCIES): Set to $(GCRYPT_MODULES).
(libcipher_la_LIBADD): Likewise.
(AM_CFLAGS): Added: @GPG_ERROR_CFLAGS@.
(EXTRA_libcipher_la_SOURCES): Added all conditional sources.
* md.c (md_open): Use _gcry_fast_random_poll instead of
fast_random_poll.
* cipher.c (gcry_cipher_open): Likewise.
* random.h (fast_random_poll): Removed macro.
* blowfish.c, md4.c, md5.c, rmd160.c, sha1.c, sha256.c, sha512.c,
tiger.c: Use Autoconf's WORDS_BIGENDIAN instead of our own
BIG_ENDIAN_HOST.
2003-06-16 Moritz Schulte <moritz@g10code.com>
* random.c (getfnc_gather_random): Do not special-case
USE_ALL_RANDOM_MODULES, make it the default.
* dsa.c: Replace last occurences of old type names with newer
names (i.e. replace MPI with gcry_mpi_t).
* elgamal.c: Likewise.
* primegen.c: Likewise.
* pubkey.c: Likewise.
* rsa.c: Likewise.
2003-06-14 Moritz Schulte <moritz@g10code.com>
* des.c (des_setkey): Add selftest check.
(tripledes_set3keys): Likewise.
(do_tripledes_setkey): Remove selftest check.
(do_des_setkey): Likewise.
2003-06-11 Moritz Schulte <moritz@g10code.com>
* md.c (_gcry_md_init): New function.
* cipher.c (_gcry_cipher_init): New function.
* pubkey.c (_gcry_pk_init): New function.
2003-06-13 Werner Koch <wk@gnupg.org>
* md.c (gcry_md_get_algo): Reverted to old API. This is a
convenience function anyway and error checking is not approriate.
(gcry_md_is_secure): New.
(gcry_md_is_enabled): New.
2003-06-12 Werner Koch <wk@gnupg.org>
* cipher.c (gcry_cipher_open): Make sure HANDLE is set to NULL on
error.
2003-06-11 Werner Koch <wk@gnupg.org>
* md.c (gcry_md_open): Make sure H receives either NULL or an
valid handle.
(gcry_md_copy): Swapped arguments so that it is more in lione with
md_open and most other API fucntions like memcpy (destination
comes first). Make sure HANDLE is set to NULL on error.
* rijndael.c (do_encrypt): Hack to force correct alignment. It
seems not to be not sufficient, though. We should rework this
fucntions and remove all these ugly casts. Let the compiler
optimize or have an assembler implementation.
2003-06-09 Moritz Schulte <moritz@g10code.com>
* Makefile.am: Removed rules serpent, since that is not commited
yet.
2003-06-08 Moritz Schulte <moritz@g10code.com>
* pubkey.c (gcry_pk_encrypt): Improve calculation for size of the
format string.
2003-06-07 Moritz Schulte <moritz@g10code.com>
* arcfour.c, bithelp.h, blowfish.c, cast5.c, cipher.c, crc.c,
des.c, dsa.c, elgamal.c, md4.c, md5.c, md.c, primegen.c, pubkey.c,
rand-internal.h, random.c, random.h, rijndael.c, rmd160.c,
rmd160test.c, rmd.h, rndeged.c, rndlinux.c, rndunix.c, rndw32.c,
rsa.c, sha1.c, sha256.c, sha512.c, tiger.c, twofish.c: Edited all
preprocessor instructions to remove whitespace before the '#'.
This is not required by C89, but there are some compilers out
there that don't like it. Replaced any occurence of the now
deprecated type names with the new ones.
2003-06-04 Moritz Schulte <moritz@g10code.com>
* pubkey.c (gcry_pk_encrypt): Construct an arg_list and use
gcry_sexp_build_array instead of gcry_sexp_build.
(gcry_pk_sign): Likewise.
(gcry_pk_genkey): Likewise.
2003-06-01 Moritz Schulte <moritz@g10code.com>
* dsa.c (_gcry_dsa_generate): Do not check wether the algorithm ID
does indeed belong to DSA.
(_gcry_dsa_sign): Likewise.
(_gcry_dsa_verify): Likewise.
(_gcry_dsa_get_nbits): Likewise.
* elgamal.c (_gcry_elg_check_secret_key): Do not check wether the
algorithm ID does indeed belong to ElGamal.
(_gcry_elg_encrypt): Likewise.
(_gcry_elg_decrypt): Likewise.
(_gcry_elg_sign): Likewise.
(_gcry_elg_verify): Likewise.
(_gcry_elg_get_nbits): Likewise.
(_gcry_elg_generate): Likewise.
* rsa.c (_gcry_rsa_generate): Do not check wether the algorithm ID
does indeed belong to RSA.
(_gcry_rsa_encrypt): Likewise.
(_gcry_rsa_decrypt): Likewise.
(_gcry_rsa_sign): Likewise.
(_gcry_rsa_verify): Likewise.
(_gcry_rsa_get_nbits): Likewise.
2003-05-30 Moritz Schulte <moritz@g10code.com>
* md.c (md_get_algo): Return zero in case to algorithm is enabled.
* md.c (gcry_md_info): Adjusted for new no-errno-API.
(md_final): Likewise.
(gcry_md_get_algo): Likewise.
* pubkey.c (gcry_pk_get_keygrip): Likewise.
(gcry_pk_ctl): Likewise.
(gcry_pk_algo_info): Likewise.
* des.c (selftest): Likewise.
2003-05-29 Moritz Schulte <moritz@g10code.com>
* md.c (md_enable): Do not forget to release module on error.
(gcry_md_open): Adjusted for new no-errno-API.
(md_open): Likewise.
(md_copy): Likewise.
(gcry_md_copy): Likewise.
(gcry_md_setkey): Likewise.
(gcry_md_algo_info): Likewise.
* cipher.c (gcry_cipher_open): Adjusted for new no-errno-API and
also fixed a locking bug.
(gcry_cipher_encrypt): Adjusted for new no-errno-API.
(gcry_cipher_decrypt): Likewise.
(gcry_cipher_ctl): Likewise.
(gcry_cipher_info): Likewise.
(gcry_cipher_algo_info): Likewise.
2003-05-28 Moritz Schulte <moritz@g10code.com>
* md.c (md_enable): Adjusted for libgpg-error.
(gcry_md_enable): Likewise.
(gcry_digest_register_default): Likewise.
(gcry_digest_register): Likewise.
(check_digest_algo): Likewise.
(prepare_macpads): Likewise.
(gcry_md_setkey): Likewise.
(gcry_md_ctl): Likewise.
(gcry_md_get): Likewise.
(gcry_md_algo_info): Likewise.
(gcry_md_info): Likewise.
* dsa.c (_gcry_dsa_generate): Likewise.
(_gcry_dsa_check_secret_key): Likewise.
(_gcry_dsa_sign): Likewie.
(_gcry_dsa_verify): Likewise.
* twofish.c (do_twofish_setkey): Likewise.
(twofish_setkey): Likewise.
* cipher.c (gcry_cipher_register): Likewise.
2003-05-25 Moritz Schulte <moritz@g10code.com>
* rijndael.c (do_setkey): Adjusted for libgpg-error.
(rijndael_setkey): Likewise.
* random.c (gcry_random_add_bytes): Likewise.
* elgamal.c (_gcry_elg_generate): Likewise.
(_gcry_elg_check_secret_key): Likewise.
(_gcry_elg_encrypt): Likewise.
(_gcry_elg_decrypt): Likewise.
(_gcry_elg_sign): Likewise.
(_gcry_elg_verify): Likewise.
* rsa.c (_gcry_rsa_generate): Likewise.
(_gcry_rsa_check_secret_key): Likewise.
(_gcry_rsa_encrypt): Likewise.
(_gcry_rsa_decrypt): Likewise.
(_gcry_rsa_sign): Likewise.
(_gcry_rsa_verify): Likewise.
* pubkey.c (dummy_generate, dummy_check_secret_key, dummy_encrypt,
dummy_decrypt, dummy_sign, dummy_verify): Likewise.
(gcry_pubkey_register): Likewise.
(check_pubkey_algo): Likewise.
(pubkey_generate): Likewise.
(pubkey_check_secret_key): Likewise.
(pubkey_encrypt): Likewise.
(pubkey_decrypt): Likewise.
(pubkey_sign): Likewise.
(pubkey_verify): Likewise.
(sexp_elements_extract): Likewise.
(sexp_to_key): Likewise.
(sexp_to_sig): Likewise.
(sexp_to_enc): Likewise.
(sexp_data_to_mpi): Likewise.
(gcry_pk_encrypt): Likewise.
(gcry_pk_decrypt): Likewise.
(gcry_pk_sign): Likewise.
(gcry_pk_verify): Likewise.
(gcry_pk_testkey): Likewise.
(gcry_pk_genkey): Likewise.
(gcry_pk_ctl): Likewise.
* cipher.c (dummy_setkey): Likewise.
(check_cipher_algo): Likewise.
(gcry_cipher_open): Likewise.
(cipher_setkey): Likewise.
(gcry_cipher_ctl): Likewise.
(cipher_encrypt): Likewise.
(gcry_cipher_encrypt): Likewise.
(cipher_decrypt): Likewise.
(gcry_cipher_decrypt): Likewise.
(gcry_cipher_info): Likewise.
(gcry_cipher_algo_info): Likewise.
* cast5.c (cast_setkey): Likewise.
(do_cast_setkey): Likewise.
* arcfour.c (arcfour_setkey): Likewise.
(do_arcfour_setkey): Likewise.
* blowfish.c (do_bf_setkey): Likewise.
(bf_setkey): Likewise.
* des.c (do_des_setkey): Likewise.
(do_tripledes_setkey): Likewise.
2003-05-22 Moritz Schulte <moritz@g10code.com>
* tiger.c: Merged code ussing the U64_C macro from GnuPG.
* sha512.c: Likewise.
2003-05-17 Moritz Schulte <moritz@g10code.com>
* pubkey.c (gcry_pk_genkey): Fix type: acquire a lock, instead of
releasing it.
2003-05-11 Moritz Schulte <moritz@g10code.com>
* pubkey.c (gcry_pk_testkey): Call REGISTER_DEFAULT_CIPHERS.
(gcry_pk_ctl): Likewise.
2003-04-27 Moritz Schulte <moritz@g10code.com>
* pubkey.c (gcry_pk_genkey): Release sexp after extracted data has
been used.
* md.c (gcry_md_get_algo_dlen): Simplified, simply call
md_digest_length to do the job.
* des.c (do_des_setkey): Check for selftest failure not only
during initialization.
(do_tripledes_setkey): Include check for selftest failure.
* pubkey.c (gcry_pubkey_register_default): New macro
`pubkey_use_dummy', use it.
* elgamal.c (elg_names): New variable.
(pubkey_spec_elg): Include elg_names.
* dsa.c (dsa_names): New variable.
(pubkey_spec_dsa): Include dsa_names.
* rsa.c (rsa_names): New variable.
(pubkey_spec_rsa): Include rsa_names.
* pubkey.c (gcry_pubkey_lookup_func_name): Compare name also with
the names listed in `sexp_names'.
2003-04-24 Moritz Schulte <moritz@g10code.com>
* pubkey.c (sexp_to_key): New variables: module, pubkey. Adjusted
to new module interface.
(sexp_to_key): Changend type of argument `retalgo' from `int *' to
`GcryModule **'. Adjusted all callers. Removed argument:
r_algotblidx.
(sexp_to_sig): Changend type of argument `retalgo' from `int *' to
`GcryModule **'. Adjusted all callers.
(sexp_to_enc): Likewise.
(pubkey_get_npkey, pubkey_get_nskey, pubkey_get_nsig,
pubkey_get_nenc): Use strlen to find out the number.
* rsa.c: Adjust pubkey_spec_rsa to new internal interface.
* dsa.c: Likewise.
* elgamal.c: Likewise.
2003-04-17 Moritz Schulte <moritz@g10code.com>
* pubkey.c (sexp_elements_extract): New function.
* pubkey.c (sexp_to_key): Removed variable `idx', added `err', use
sexp_elements_extract.
(sexp_to_sig): Likewise.
(sexp_to_enc): Likewise.
* pubkey.c: Terminate list correctly.
* md.c: Include sha512/sha384 in digest_table.
2003-04-16 Moritz Schulte <moritz@g10code.com>
* Makefile.am: Include support for sha512.c.
* sha512.c: New file, merged from GnuPG, with few modifications
for libgcrypt.
* rand-internal.h: Removed declarations for constructor functions.
* md.c (md_copy): Call _gcry_module_use for incrementing the usage
counter of the digest modules.
* rsa.c: Do not include "rsa.h".
* dsa.c: Do not include "dsa.h".
* elgamal.c: Do not include "elgamal.h".
* des.c: Do not include "des.h".
* cast5.c: Do not include "cast5.h".
* blowfish.c: Do not include "blowfish.h".
* arcfour.c: Do not include "arcfour.h".
* Makefile.am (libcipher_la_DEPENDENCIES): Removed.
(libcipher_la_LIBADD): Removed.
Use Automake conditionals for conditional compilation.
2003-04-13 Moritz Schulte <moritz@g10code.com>
* cipher.c (gcry_cipher_open): Call REGISTER_DEFAULT_CIPHERS.
* md.c (gcry_md_list): New member: module.
(md_enable): New variable: module, changed use of module and
digest.
(md_enable): Initialize member: module.
(md_close): Call _gcry_module_release.
* cipher.c (gcry_cipher_open): New variable: module, changed use of
module and cipher.
(struct gcry_cipher_handle): New member: module.
(gcry_cipher_open): Initialize member: module.
(gcry_cipher_close): Call _gcry_module_release.
2003-04-09 Moritz Schulte <moritz@g10code.com>
* cipher.c: Include "ath.h".
* md.c: Likewise.
* pubkey.c: Likewise.
* cipher.c (ciphers_registered_lock): New variable.
* md.c (digests_registered_lock): New variable.
* pubkey.c (pubkeys_registered_lock): New variable.
* rndlinux.c (gnupgext_version, func_table): Removed definitions.
(gnupgext_enum_func): Removed function.
(_gcry_rndlinux_constructor): Removed function.
* rndegd.c (gnupgext_version, func_table): Removed definitions.
(gnupgext_enum_func): Removed function.
(_gcry_rndegd_constructor): Removed function.
* rndunix.c (gnupgext_version, func_table): Removed definitions.
(gnupgext_enum_func): Removed function.
(_gcry_rndunix_constructor): Removed function.
* rndw32.c (gnupgext_version, func_table): Removed definitions.
(gnupgext_enum_func): Removed function.
(_gcry_rndw32_constructor): Removed function.
* rndegd.c (rndegd_connect_socket): Simplify code for creating the
egd socket address.
(rndegd_connect_socket): Call log_fatal use instead of
g10_log_fatal.
(egd_gather_random): Renamed to ...
(rndegd_gather_random): ... here.
2003-04-08 Moritz Schulte <moritz@g10code.com>
* rndlinux.c: Do not include "dynload.h".
* rndunix.c: Likewise.
* rndw32.c: Likewise.
* rndegd.c (rndegd_connect_socket): Factored out from ...
(egd_gather_random): here; call it.
(egd_socket): New variable.
(egd_gather_random): Initialize fd with egd_socket, do not declare
fd static.
(do_read): Merged few changes from GnuPG. FIXME - not finished?
Do not include "dynload.h".
* rndw32.c (gather_random): Renamed to rndw32_gather_random, do
not declare static.
(gather_random_fast): Renamed to rndw32_gather_random_fast, do not
declare static.
* rndunix.c (gather_random): Renamed to rndunix_gather_random, do
not declare static.
* rndegd.c (gather_random): Renamed to rndegd_gather_random, do
not declare static.
* rndlinux.c (gather_random): Renamed to rndlinux_gather_random,
do not declare static.
2003-04-07 Moritz Schulte <moritz@g10code.com>
* Makefile.am (libcipher_la_SOURCES): Removed construct.c.
(libcipher_la_SOURCES): Added sha1.c, sha256.c, rmd160.c, md4.c,
md5.c, tiger.c and crc.c
(EXTRA_PROGRAMS): Removed sha1, sha256, rmd160, md4, md5, tiger
and crc. Removed definitions: EXTRA_md4_SOURCES,
EXTRA_md5_SOURCES, EXTRA_rmd160_SOURCES, EXTRA_sha1_SOURCES,
EXTRA_sha256_SOURCES, EXTRA_tiger_SOURCES and EXTRA_crc_SOURCES,
BUILT_SOURCES, DISTCLEANFILES.
* pubkey.c: Do not include "elgamal.h", "dsa.h" and "rsa.h".
* Makefile.am (libcipher_la_SOURCES): Removed rsa.h, elgamal.h,
dsa.h, des.h, cast5.h, arcfour.h and blowfish.h.
* rsa.h: Removed file.
* elgamal.h: Removed file.
* dsa.h: Removed file.
* des.h: Removed file.
* cast5.h: Removed file.
* arcfour.h: Removed file.
* blowfish.h: Removed file.
* Makefile.am (libcipher_la_SOURCES): Removed dynload.c and
dynload.h.
* rsa.c (pubkey_spec_rsa): New variable.
* dsa.c (pubkey_spec_rsa): New variable.
* elgamal.c (pubkey_spec_elg): New variable.
* rsa.c (_gcry_rsa_get_info): Removed function.
* elgamal.c (_gcry_elg_get_info): Removed function.
* dsa.c (_gcry_dsa_get_info): Removed function.
* tiger.c (tiger_get_info): Removed function.
(gnupgext_version, func_table): Removed definitions.
(gnupgext_enum_func): Removed function.
(_gcry_tiger_constructor): Removed function.
* sha1.c (sha1_get_info): Removed function.
(gnupgext_version, func_table): Removed definitions.
(gnupgext_enum_func): Removed function.
(_gcry_sha1_constructor): Removed function.
* sha256.c (sha256_get_info): Removed function.
(gnupgext_version, func_table): Removed definitions.
(gnupgext_enum_func): Removed function.
(_gcry_sha256_constructor): Removed function.
* rmd160.c (rmd160_get_info): Removed function.
(gnupgext_version, func_table): Removed definitions.
(gnupgext_enum_func): Removed function.
(_gcry_rmd160_constructor): Removed function.
* md5.c (md5_get_info): Removed function.
(gnupgext_version, func_table): Removed definitions.
(gnupgext_enum_func): Removed function.
(_gcry_md5_constructor): Removed function.
* md4.c (md4_get_info): Removed function.
(gnupgext_version, func_table): Removed definitions.
(gnupgext_enum_func): Removed function.
(_gcry_md4_constructor): Removed function.
* crc.c (crc_get_info): Removed function.
* arcfour.c (do_arcfour_setkey): Changed type of context argument
to `void *', added local variable for cast, adjusted callers.
(arcfour_setkey): Likewise.
(encrypt_stream): Likewise.
* cast5.c (cast_setkey): Likewise.
(encrypt_block): Likewise.
* rijndael.c (rijndael_setkey): Likewise.
(rijndael_encrypt): Likewise.
(rijndael_decrypt): Likewise.
* twofish.c (twofish_setkey): Likewise.
(twofish_encrypt): Likewise.
(twofish_decrypt): Likewise.
* des.c (do_des_setkey): Likewise.
(do_des_encrypt): Likewise.
(do_des_encrypt): Likewise.
(do_tripledes_encrypt): Likewise.
(do_tripledes_encrypt): Likewise.
* blowfish.c (bf_setkey: Likewise.
(encrypt_block): Likewise.
(decrypt_block): Likewise.
* arcfour.c (encrypt_stream): Likewise.
* rijndael.c (gnupgext_version, func_table): Removed definitions.
(gnupgext_enum_func) Removed function.
* twofish.c (gnupgext_version, func_table): Removed definitions.
(gnupgext_enum_func) Removed function.
* cast5.c (CIPHER_ALGO_CAST5): Removed.
* blowfish.c (FNCCAST_SETKEY, FNCCAST_CRYPT): Removed macros.
(CIPHER_ALGO_BLOWFISH): Removed symbol.
* cast5.c (FNCCAST_SETKEY, FNCCAST_CRYPT): Likewise.
* des.c (selftest_failed): Removed.
(initialized): New variable.
(do_des_setkey): Run selftest, if not yet done.
(FNCCAST_SETKEY, FNCCAST_CRYPT): Removed macros.
* arcfour.c (_gcry_arcfour_get_info): Removed function.
* blowfish.c (_gcry_blowfish_get_info): Removed function.
* cast5.c (_gcry_cast5_get_info): Removed function.
* des.c (_gcry_des_get_info): Removed function.
* rijndael.c (_gcry_rijndael_get_info): Removed function.
* twofish.c (_gcry_twofish_get_info): Removed function.
* arcfour.c (cipher_spec_arcfour): New variable.
* twofish.c (cipher_spec_twofish, cipher_spec_twofish128): New
variables.
* rijndael.c (cipher_spec_aes, cipher_spec_aes192,
cipher_spec256): New variables.
* des.c (cipher_spec_des, cipher_spec_tripledes): New variables.
* cast5.c (cipher_spec_cast5): New variable.
* blowfish.c (cipher_spec_blowfish): Likewise.
* twofish.c: Do not include "dynload.h".
* rijndael.c: Likewise.
* des.c: Likewise.
* cast5.c: Likewise.
* blowfish.c: Likewise.
* cipher.c: Likewise.
* crc.c: Likewise.
* md4.c: Likewise.
* md5.c: Likewise.
* md.c: Likewise.
* pubkey.c: Likewise.
* rijndael.c: Likewise.
* sha1.c: Likewise.
* sha256.c: Likewise.
* arcfour.c: Include "cipher.h".
* twofish.c: Likewise.
* rijndael.c: Likewise.
* des.c: Likewise.
* cast5.c: Likewise.
* blowfish.c: Likewise.
* twofish.c (twofish_setkey): Declared argument `key' const.
(twofish_encrypt): Declared argument `inbuf' const.
(twofish_decrypt): Likewise.
* rijndael.c (rijndael_setkey): Declared argument `key' const.
(rijndael_encrypt): Declared argument `inbuf' const.
(rijndael_decrypt): Likewise.
* des.c (do_des_setkey): Declared argument `key' const.
(do_tripledes_setkey): Likewise.
(do_des_encrypt): Declared argument `inbuf' const.
(do_des_decrypt): Likewise.
(do_tripledes_encrypt): Likewise.
(do_tripledes_decrypt): Likewise.
* cast5.c (encrypt_block): Declared argument `inbuf' const.
(decrypt_block): Likewise.
(cast_setkey): Declared argument `key' const.
* blowfish.c (do_bf_setkey): Declared argument `key' const.
(encrypt_block): Declared argument `inbuf' const.
(encrypt_block): Likewise.
* cipher.c: Remove CIPHER_ALGO_DUMMY related code.
Removed struct cipher_table_s.
Changed definition of cipher_table.
Removed definition of disabled_algos.
(ciphers_registered, default_ciphers_registered): New variables.
(REGISTER_DEFAULT_CIPHERS): New macro.
(dummy_setkey): Declared argument `key' const.
(dummy_encrypt_block): Declared argument `inbuf' const.
(dummy_encrypt_block): Likewise.
(dummy_encrypt_stream): Likewise.
(dummy_encrypt_stream): Likewise.
(dummy_setkey): Use `unsigned char' instead of `byte'.
(dummy_encrypt_block): Likewise.
(dummy_decrypt_block): Likewise.
(dummy_encrypt_stream): Likewise.
(dummy_decrypt_stream): Likewise.
(gcry_cipher_register_default): New function.
(gcry_cipher_lookup_func_id): New function.
(gcry_cipher_lookup_func_name): New function.
(gcry_cipher_lookup_id): New function.
(gcry_cipher_lookup_name): New function.
(gcry_cipher_id_new): New function.
(gcry_cipher_register): New function.
(gcry_cipher_unregister): New function.
(setup_cipher_table): Removed function.
(load_cipher_modules): Removed function.
(gcry_cipher_map_name): Adjusted to use new module management.
(cipher_algo_to_string): Likewise.
(disable_cipher_algo): Likewise.
(check_cipher_algo): Likewise.
(cipher_get_keylen): Likewise.
(cipher_get_blocksize): Likewise.
(gcry_cipher_open): Likewise.
(struct gcry_cipher_handle): Replaced members algo, algo_index,
blocksize, setkey, encrypt, decrypt, stencrypt, stdecrypt with one
member: cipher.
(gcry_cipher_open): Adjusted code for new handle structure.
(cipher_setkey): Likewise.
(cipher_setiv): Likewise.
(cipher_reset): Likewise.
(do_ecb_encrypt): Likewise.
(do_ecb_decrypt): Likewise.
(do_cbc_encrypt): Likewise.
(do_cbc_decrypt): Likewise.
(do_cfb_encrypt): Likewise.
(do_cfb_decrypt): Likewise.
(do_ctr_encrypt): Likewise.
(cipher_encrypt): Likewise.
(gcry_cipher_encrypt): Likewise.
(cipher_decrypt): Likewise.
(gcry_cipher_decrypt): Likewise.
(cipher_sync): Likewise.
(gcry_cipher_ctl): Likewise.
* pubkey.c: Removed struct pubkey_table_s.
Changed definition of pubkey_table.
Removed definition of disabled_algos.
(pubkeys_registered, default_pubkeys_registered): New variables.
(REGISTER_DEFAULT_PUBKEYS): New macro.
(setup_pubkey_table): Removed function.
(load_pubkey_modules): Removed function.
(gcry_pubkey_register_default): New function.
(gcry_pubkey_lookup_func_id): New function.
(gcry_pubkey_lookup_func_name): New function.
(gcry_pubkey_lookup_id): New function.
(gcry_pubkey_lookup_name): New function.
(gcry_pubkey_id_new): New function.
(gcry_pubkey_register): New function.
(gcry_pubkey_unregister): New function.
(gcry_pk_map_name): Adjusted to use new module management.
(gcry_pk_algo_name): Likewise.
(disable_pubkey_algo): Likewise.
(check_pubkey_algo): Likewise.
(pubkey_get_npkey): Likewise.
(pubkey_get_nskey): Likewise.
(pubkey_get_nsig): Likewise.
(pubkey_get_nenc): Likewise.
(pubkey_generate): Likewise.
(pubkey_check_secret_key): Likewise.
(pubkey_encrypt): Likewise.
(pubkey_decrypt): Likewise.
(pubkey_sign): Likewise.
(pubkey_verify): Likewise.
(gcry_pk_get_nbits): Likewise.
(gcry_pk_algo_info): Likewise.
* md.c: Removed struct md_digest_list_s.
(digest_list): Changed definition.
(digests_registered, default_digests_registered): New variables.
(REGISTER_DEFAULT_DIGESTS): New macro.
(new_list_item): Removed function.
(setup_md_table): Removed function.
(load_digest_module): Removed function.
(gcry_digest_register_default): New function.
(gcry_digest_lookup_func_id): New function.
(gcry_digest_lookup_func_name): New function.
(gcry_digest_lookup_id): New function.
(gcry_digest_lookup_name): New function.
(gcry_digest_id_new): New function.
(gcry_digest_register): New function.
(gcry_digest_unregister): New function.
(GcryDigestEntry): New type.
(struct gcry_md_context): Adjusted type of `list'.
(gcry_md_map_name): Adjusted to use new module management.
(digest_algo_to_string): Likewise.
(check_digest_algo): Likewise.
(md_enable): Likewise.
(md_digest_length): Likewise.
(md_asn_oid): Likewise.
2003-04-07 Moritz Schulte <moritz@g10code.com>
* pubkey.c: Replaced PUBKEY_ALGO_DSA with GCRY_PK_DSA,
PUBKEY_ALGO_RSA with GCRY_PK_RSA and PUBKEY_ALGO_ELGAMAL with
GCRY_PK_ELG.
* dsa.c: Replaced PUBKEY_ALGO_DSA with GCRY_PK_DSA.
2003-04-01 Moritz Schulte <moritz@g10code.com>
* des.c: Removed checks for GCRY_CIPHER_3DES and GCRY_CIPHER_DES.
2003-03-31 Moritz Schulte <moritz@g10code.com>
* tiger.c (tiger_get_info): Do not declare static.
* sha256.c (sha256_get_info): Likewise.
* sha1.c (sha1_get_info): Likewise.
* rmd160.c (rmd160_get_info): Likewise.
* md5.c (md5_get_info): Likewise.
* md4.c (md4_get_info): Likewise.
* crc.c (crc_get_info): Likewise.
* md.c (load_digest_module): Call setup_md_table during
initialization.
(new_list_item): Link new element into digest_list.
* cipher.c (do_ctr_decrypt): Made do_ctr_encrypt act as a wrapper
for do_ctr_encrypt, since these functions are identical.
2003-03-30 Simon Josefsson <jas@extundo.com>
* cipher.c (struct gcry_cipher_handle): Add counter field.
(gcry_cipher_open): Add CTR.
(cipher_reset): Clear counter field.
(do_ctr_encrypt, do_ctr_decrypt): New functions.
(cipher_encrypt, cipher_decrypt): Call CTR functions.
(gcry_cipher_ctl): Add SET_CTR to set counter.
2003-03-30 Moritz Schulte <moritz@g10code.com>
* rsa.c (_gcry_rsa_blind): New function.
(_gcry_rsa_unblind): New function.
(_gcry_rsa_decrypt): Use _gcry_rsa_blind and _gcry_rsa_decrypt.
2003-03-26 Moritz Schulte <moritz@g10code.com>
* dynload.c (_gcry_enum_gnupgext_pubkeys): Adjust `encrypt' and
`decrypt' function arguments.
(_gcry_enum_gnupgext_pubkeys): Likewise.
* dynload.h: Likewise.
* pubkey.c (dummy_decrypt): Add argument: int flags.
(dummy_encrypt): Likewise.
* elgamal.c (_gcry_elg_encrypt): Add argument: int flags.
(_gcry_elg_decrypt): Likewise.
* rsa.c (_gcry_rsa_encrypt): Add argument: int flags.
(_gcry_rsa_decrypt): Likewise.
* pubkey.c: Add `flags' argument to members `encrypt' and
`decrypt' of struct `pubkey_table_s'.
* rsa.h: Add `flags' argument to function declarations.
* elgamal.h: Likewise.
* pubkey.c (sexp_data_to_mpi): New variable: int parsed_flags.
(sexp_data_to_mpi): Set `parsed_flags'.
(sexp_data_to_mpi): New argument: int *flags.
(gcry_pk_encrypt): New variable: int flags.
(gcry_pk_encrypt): Pass `flags' to pubkey_encrypt.
(pubkey_encrypt): New variable: int flags.
(pubkey_encrypt): Pass `flags' to pubkey encrypt function.
(pubkey_decrypt): Likewise.
(pubkey_decrypt): Pass `flags' to pubkey encrypt function.
(gcry_pk_encrypt): Include `flags' s-exp in return list.
(sexp_to_enc): New argument: int *flags.
(gcry_pk_decrypt): New variable: int flags.
(gcry_pk_decrypt): Pass `flags' to pubkey_decrypt.
(sexp_to_enc): New variable: int parsed_flags.
(sexp_to_enc): Set `parsed_flags'.
2003-03-22 Simon Josefsson <jas@extundo.com>
* cipher.c (gcry_cipher_open, do_cbc_encrypt)
(gcry_cipher_encrypt): Support GCRY_CIPHER_CBC_MAC.
(gcry_cipher_ctl): Support GCRYCTL_SET_CBC_MAC.
2003-03-19 Werner Koch <wk@gnupg.org>
* primegen.c (gen_prime): New args EXTRA_CHECK and EXTRA_CHECK_ARG
to allow for a user callback. Changed all callers.
(_gcry_generate_secret_prime)
(_gcry_generate_public_prime): Ditto, pass them to gen_prime.
* rsa.c (check_exponent): New.
(generate): Use a callback to ensure that a given exponent is
actually generated.
2003-03-12 Moritz Schulte <moritz@g10code.com>
* primegen.c: Initialize `no_of_small_prime_numbers' statically.
(gen_prime): Remove calculation of `no_of_small_prime_numbers'.
2003-03-03 Moritz Schulte <moritz@g10code.com>
* md.c (gcry_md_ctl): Rewritten to use same style like the other
functions dispatchers.
2003-03-02 Moritz Schulte <moritz@g10code.com>
* cipher.c (struct gcry_cipher_handle): New member: algo_index.
(gcry_cipher_open): Allocate memory for two cipher contexts.
Initialize algo_index.
(cipher_setkey): Duplicate context into reserved memory.
(cipher_reset): New function, which resets the context and clear
the IV.
(gcry_cipher_ctl): Call cipher_reset.
2003-02-23 Moritz Schulte <moritz@g10code.com>
* cipher.c: Remove (bogus) `digitp' macro definition.
* md.c: Likewise.
* blowfish.c (burn_stack): Removed.
* arcfour.c (burn_stack): Likewise.
* cast5.c (burn_stack): Likewise.
* des.c (burn_stack): Likewise.
* md4.c (burn_stack): Likewise.
* md5.c (burn_stack): Likewise.
* random.c (burn_stack): Likewise.
* rijndael.c (burn_stack): Likewise.
* rmd160.c (burn_stack): Likewise.
* sha1.c (burn_stack): Likewise.
* sha256.c (burn_stack): Likewise.
* tiger.c (burn_stack): Likewise.
* twofish.c (burn_stack): Likewise.
* blowfish.c: Changed all occurences of burn_stack to
_gcry_burn_stack.
* arcfour.c: Likewise.
* cast5.c: Likewise.
* des.c: Likewise.
* md4.c: Likewise.
* md5.c: Likewise.
* random.c: Likewise.
* rijndael.c: Likewise.
* rmd160.c: Likewise.
* sha1.c: Likewise.
* sha256.c: Likewise.
* tiger.c: Likewise.
* twofish.c: Likewise.
* arcfour.c (_gcry_arcfour_get_info): Use GCRY_CIPHER_ARCFOUR
instead of hard-coded value `301'.
2003-01-24 Werner Koch <wk@gnupg.org>
* random.c (_gcry_register_random_progress): New.
(_gcry_random_progress): New.
* rndlinux.c (gather_random): Call the random progress function.
2003-01-23 Werner Koch <wk@gnupg.org>
* rsa.c (generate): New arg USE_E to request a specific public
exponent.
(_gcry_rsa_generate): Ditto.
* elgamal.c (_gcry_elg_generate): Must add an dummy argument
instead of USE_E.
* dsa.c (_gcry_dsa_generate): Ditto.
* pubkey.c (dummy_generate): Ditto.
(pubkey_generate): Add USE_E arg and pass it down.
(gcry_pk_genkey): Detect "rsa-use-e" parameter and pass it to generate.
* pubkey.c (sexp_to_enc): New arg RET_MODERN.
(gcry_pk_decrypt): Make use of it to return a real S-expression.
Return better error codes.
(gcry_pk_verify): Return better error codes.
2003-01-21 Werner Koch <wk@gnupg.org>
* random.c (gcry_random_add_bytes): Add QUALITY argument, let
function return an error code and disable its core for now.
2003-01-21 Timo Schulz <twoaday@freakmail.de>
* random.c (gcry_random_add_bytes): New. Function to add external
random to the pool.
2003-01-20 Simon Josefsson <jas@extundo.com>
* crc.c: New.
* Makefile.am (EXTRA_PROGRAMS, EXTRA_crc_SOURCES): Add crc.c.
* md.c (gcry_md_get_algo_dlen): Add values for CRC.
2003-01-20 Werner Koch <wk@gnupg.org>
* sha256.c: New.
* bithelp.h (ror): New.
* Makfile.am: Add sha256.c.
* md.c (oid_table): Add values for SHA256 et al.
(gcry_md_get_algo_dlen): Likewise
2003-01-20 Werner Koch <wk@gnupg.org>
* pubkey.c (gcry_pk_get_keygrip): Implemented keygrips for DSA
and ElGamal.
2003-01-17 Werner Koch <wk@gnupg.org>
* cipher.c (gcry_cipher_encrypt): Reworked so that the output will
never contain the plaintext even if the caller did not checked the
return value.
* md.c (gcry_md_get_algo): Changed error code to GCRYERR_GENERAL
because we don't have an invalid md algo but no algorithm enabled.
* pubkey.c (gcry_pk_genkey): Changed error code for bounds check
of table parameters to GCRYERR_INTERNAL.
* md.c (gcry_md_open): Partly reverted Timo's change from
2002-10-10 by removing the check for the algorithm. An algorithm
of 0 is allowed and anyway we should not double check it or check
it using a different function. Also fixed the flags check.
* pubkey.c (gcry_pk_encrypt): Make sure that R_CIPH points to NULL
on error.
(gcry_pk_decrypt): Ditto for R_PLAIN.
(gcry_pk_sign): Ditto for R_SIG.
(gcry_pk_genkey): Ditto for R_KEY.
2003-01-16 Werner Koch <wk@gnupg.org>
* md.c (gcry_md_write): Changed 2nd argument type to void*.
(gcry_md_hash_buffer): Changed type of boths buffers to void*.
(gcry_md_setkey): Changed 2nd argument type to void*.
2003-01-15 Werner Koch <wk@gnupg.org>
* pubkey.c (sexp_data_to_mpi): New. This handles pkcs1 padding.
(gcry_pk_sign, gcry_pk_verify): Use it here.
(gcry_pk_encrypt): And here.
(pubkey_verify): Add debug code.
(sexp_to_enc): Handle flags in the input and return the pkcs1 flag
in a new parameter.
(gcry_pk_decrypt): Prepare for future pkcs1 handling.
2002-12-19 Werner Koch <wk@gnupg.org>
* random.c (_gcry_random_initialize): New.
2002-12-16 Werner Koch <wk@gnupg.org>
* cipher.c: Added a Teletrust specific OID for 3DES.
2002-12-12 Werner Koch <wk@gnupg.org>
* md.c: Added another oddball OIW OID (sha-1WithRSAEncryption).
2002-11-23 Werner Koch <wk@gnupg.org>
* md.c (load_digest_module): Enlarged checked_algos bitmap.
* md4.c (func_table): Fixed entry for md4.
Both by Simon Josephson.
(transform): Copy data to get the alignment straight. Tested only
on i386.
2002-11-10 Simon Josefsson <jas@extundo.com>
* cipher.c (gcry_cipher_open): Don't reject CTS flag.
(do_cbc_encrypt, do_cbc_decrypt, cipher_encrypt)
(gcry_cipher_encrypt, cipher_decrypt)
(gcry_cipher_decrypt): Support CTS flag.
(gcry_cipher_ctl): Toggle CTS flag.
2002-11-10 Werner Koch <wk@gnupg.org>
* md4.c: New. By Simon Josefsson.
* Makefile.am (EXTRA_PROGRAMS): Add md4.c.
* md.c (oid_table,gcry_md_get_algo_dlen): MD4 support.
2002-10-14 Werner Koch <wk@gnupg.org>
* arcfour.c (do_encrypt_stream): Don't use increment op when
assigning to the same variable.
2002-10-10 Timo Schulz <ts@winpt.org>
* pubkey.c (gcry_pk_genkey): Check boundaries.
* md.c (gcry_md_open): Check that algo is available and only
valid flag values are used.
(gcry_md_get_algo): Add error handling.
2002-09-26 Werner Koch <wk@gnupg.org>
* md.c: Include an OID for TIGER.
* tiger.c (tiger_get_info): Use a regular OID.
2002-09-17 Werner Koch <wk@gnupg.org>
* random.c: Replaced mutex.h by the new ath.h. Changed all calls.
2002-09-16 Werner Koch <wk@gnupg.org>
* arcfour.c (do_encrypt_stream): Use register modifier and modulo.
According to Nikos Mavroyanopoulos this increases perfromace on
i386 system noticable. And I always tought gcc is clever enough.
* md5.c (transform): Use register modifier.
* rmd160.c (transform): Ditto.
* sha1.c (transform): Ditto. We hope that there are 6 free registers.
* random.c (gcry_randomize): Rewrote to avoid malloc calls.
* rndlinux.c (gather_random): Replaced remaining fprintfs by log_*.
* arcfour.c (do_arcfour_setkey): Ditto.
* twofish.c (do_twofish_setkey): Ditto.
* rndegd.c (gather_random): Ditto.
* rijndael.c (do_setkey): Ditto.
* random.c (_gcry_random_dump_stats): Ditto.
* primegen.c (_gcry_generate_elg_prime): Ditto.
* des.c (_gcry_des_get_info): Ditto.
* cast5.c (do_cast_setkey): Ditto.
* blowfish.c (do_bf_setkey): Ditto.
2002-08-26 Werner Koch <wk@gnupg.org>
* des.c (weak_keys): Fixed one entry in the table and compared
all entries against the literature.
(selftest): Checksum the weak key table.
2002-08-21 Werner Koch <wk@gnupg.org>
* pubkey.c: Enable keygrip calculation for "openpgp-rsa".
2002-08-17 Werner Koch <wk@gnupg.org>
* cipher.c (setup_cipher_table): Don't overwrite the DES entry
with the entry for DUMMY.
2002-08-14 Werner Koch <wk@gnupg.org>
* des.c (do_des_setkey,do_des_encrypt, do_des_decrypt): New.
(_gcry_des_get_info): Support plain old DES.
* cipher.c (setup_cipher_table): Put DES into the table.
2002-07-25 Werner Koch <wk@gnupg.org>
* rndunix.c (_gcry_rndunix_constructor): Prefixed with _gcry_.
Noted by Stephan Austermuehle.
2002-07-08 Timo Schulz <ts@winpt.org>
* rndw32.c: Replaced the m_ memory functions with the real
gcry_ functions. Renamed all g10_ prefixed functions to log_.
2002-06-12 Werner Koch <wk@gnupg.org>
* rsa.c (generate): Use e = 65537 for now.
2002-06-11 Werner Koch <wk@gnupg.org>
* pubkey.c (gcry_pk_get_keygrip): Allow a "protected-private-key".
2002-06-05 Timo Schulz <ts@winpt.org>
* cipher.c (gcry_cipher_encrypt, gcry_cipher_decrypt):
Check that the input size is a multiple of the blocksize.
2002-05-23 Werner Koch <wk@gnupg.org>
* md.c (oid_table): Add an rsadsi OID for MD5.
2002-05-21 Werner Koch <wk@gnupg.org>
* primegen.c, elgamal.c, dsa.c (progress): Do not print anything
by default. Pass an extra identifying string to the callback and
reserved 2 argumenst for current and total counters. Changed the
register function prototype.
2002-05-17 Werner Koch <wk@gnupg.org>
* rndegd.c (rndegd_constructor): Fixed name of register function
and prefixed the function name with _gcry_.
* rndw32.c (rndw32_constructor): Ditto.
* tiger.c (tiger_constructor): Ditto.
* Makefile.am: Removed all dynamic loading stuff.
* dynload.c: Ditto. Now only used for the constructor system.
2002-05-15 Werner Koch <wk@gnupg.org>
* random.c (gcry_random_bytes,gcry_random_bytes_secure)
(gcry_randomize): Make sure we are initialized.
2002-05-14 Werner Koch <wk@gnupg.org>
Changed license of most files to the LGPL.
2002-05-02 Werner Koch <wk@gnupg.org>
* random.c (_gcry_fast_random_poll): Initialize the module so the
mutex can be used.
* primegen.c (small_prime_numbers): Moved table from smallprime.c
* smallprime.c: File removed.
* des.c (leftkey_swap, rightkey_swap, working_memcmp): Made static.
* cipher.c (gcry_cipher_map_name): Map "RIJNDAEL" to "AES".
* rijndael.c (rijndael_get_info): We do only support a 128 bit
blocksize so it makes sense to change the algorithm strings to
AES.
* tiger.c (tiger_final): Removed superfluous token pasting operators.
* md5.c (md5_final): Ditto.
2002-04-30 Werner Koch <wk@gnupg.org>
* cipher.c: Fixed list of copyright years.
2002-03-18 Werner Koch <wk@gnupg.org>
* random.c (initialize): Initialize the new pool lock mutex.
(_gcry_fast_random_poll): Add locking and moved main
code out to...
(do_fast_random_poll): new function.
(read_pool): Use the new function here.
(get_random_bytes): Add locking.
(_gcry_update_random_seed_file): Ditto.
2002-03-11 Werner Koch <wk@gnupg.org>
* md.c: Add rsaSignatureWithripemd160 to OID table.
2002-02-20 Werner Koch <wk@gnupg.org>
* sha1.c: Removed a left over comment note. The code has been
rewritten from scratch in 1998. Thanks to Niels Möller for
reporting this misleading comment.
2002-02-18 Werner Koch <wk@gnupg.org>
* rndunix.c (rndunix_constructor): Use the the new prefixed
function name. Reported by Jordi Mallach.
2002-02-10 Werner Koch <wk@gnupg.org>
* random.c (mix_pool): Carry an extra failsafe_digest buffer
around to make the function more robust.
2002-02-08 Werner Koch <wk@gnupg.org>
* random.c (add_randomness): Xor new data into the pool and not
just copy it. This avoids any choosen input attacks which are not
serious in our setting because an outsider won't be able to mix
data in and even then we keep going with a PRNG. Thanks to Stefan
Keller for pointing this out.
2002-01-04 Werner Koch <wk@gnupg.org>
* pubkey.c (gcry_pk_genkey): Do not release skey - it is static.
* primegen.c (gen_prime): Of course we should use set_bit
and not set_highbit to set the second high bit.
2001-12-18 Werner Koch <wk@gnupg.org>
* rsa.c (generate): Loop until we find the exact modulus size.
Changed the exponent to 41.
(rsa_get_info): s/usage/r_usage/ to avoid shadow warnings.
* primegen.c (gen_prime): Set 2 high order bits for secret primes.
* Makefile.am (DISTCLEANFILES): Include construct.c.
2001-12-17 Werner Koch <wk@gnupg.org>
* pubkey.c (gcry_pk_get_keygrip): New - experimental.
2001-12-11 Werner Koch <wk@gnupg.org>
* cipher.c: Added OIDs for AES.
(gcry_cipher_mode_from_oid): New.
(gcry_cipher_map_name): Moved OID search code to ..
(search_oid): .. new function.
2001-12-10 Werner Koch <wk@gnupg.org>
* pubkey.c (gcry_pk_encrypt): Find the signature algorithm by name
and not by number.
* pubkey.c (gcry_pk_encrypt,gcry_pk_decrypt,gcry_pk_sign)
(gcry_pk_verify,gcry_pk_testkey, gcry_pk_genkey)
(gcry_pk_get_nbits): Release the arrays. Noted by Nikos
Mavroyanopoulos.
2001-12-06 Werner Koch <wk@gnupg.org>
* cipher.c (gcry_cipher_map_name): Look also for OIDs prefixed
with "oid." or "OID.".
2001-12-05 Werner Koch <wk@gnupg.org>
* pubkey.c (algo_info_table): Fixed entry for openpgp-rsa.
2001-11-24 Werner Koch <wk@gnupg.org>
* pubkey.c: Added the rsaEncryption OID to the tables.
(sexp_to_key): Add an arg to return the index of the algorithm,
changed all callers.
(gcry_pk_sign): Find the signature algorithm by name and not by
number.
(gcry_pk_get_nbits): Fixed so that we can now really pass a secret
key to get the result.
* md.c (gcry_md_map_name): Look also for OIDs prefixed with "oid."
or "OID." so that an OID string can be used as an S-Exp token.
2001-11-20 Werner Koch <wk@gnupg.org>
* md.c (gcry_md_map_name): Lookup by OID if the the name begins
with a digit.
(oid_table): New.
2001-11-16 Werner Koch <wk@gnupg.org>
* md.c (gcry_md_info): New operator GCRYCTL_IS_ALGO_ENABLED.
2001-11-07 Werner Koch <wk@gnupg.org>
* md.c (gcry_md_hash_buffer): Close the handle which was left open
for algorithms other than rmd160.
2001-08-08 Werner Koch <wk@gnupg.org>
* rndw32.c (gather_random): Use toolhelp in addition to the NT
gatherer for Windows2000. Suggested by Sami Tolvanen.
* random.c (read_pool): Fixed length check, this used to be one
byte to strict. Made an assert out of it because the caller has
already made sure that only poolsize bytes are requested.
Reported by Marcus Brinkmann.
2001-08-03 Werner Koch <wk@gnupg.org>
* cipher.c (cipher_encrypt, cipher_decrypt): Prepare to return
errors. We have to change the interface to all ciphers to make
this really work but we should do so to prepare for hardware
encryption modules.
(gcry_cipher_encrypt, gcry_cipher_decrypt): Return the error and
set lasterr.
(gcry_cipher_ctl): Make sure that errors from setkey are returned.
2001-08-02 Werner Koch <wk@gnupg.org>
* rndlinux.c (gather_random): casted a size_t arg to int so that
the format string is correct. Casting is okay here and avoids
translation changes.
* random.c (fast_random_poll): Do not check the return code of
getrusage.
* rndunix.c: Add a signal.h header to avoid warnings on Solaris 7
and 8.
* tiger.c (print_abc,print_data): Removed.
* rijndael.c, des.c, blowfish.c, twofish.c, cast5.c, arcfour.c
(burn_stack): New. Add wrappers for most functions to be able to
call burn_stack after the function invocation. This methods seems
to be the most portable way to zeroise the stack used. It does
only work on stack frame based machines but it is highly portable
and has no side effects. Just setting the automatic variables at
the end of a function to zero does not work well because the
compiler will optimize them away - marking them as volatile would
be bad for performance.
* md5.c, sha1.c, rmd160.c, tiger.c (burn_stack): Likewise.
* random.c (burn_stack): New.
(mix_pool): Use it here to burn the stack of the mixblock function.
* primegen.c (_gcry_generate_elg_prime): Freed q at 3 places.
Thanks to Tommi Komulainen.
* arcfour.c (arcfour_setkey): Check the minimim keylength against
bytes and not bits.
(selftest): Must reset the key before decryption.
2001-05-31 Werner Koch <wk@gnupg.org>
* sha1.c (sha1_init): Made static.
Changed all g10_ prefixed function names as well as some mpi_
function names to cope with the introduced naming changes.
* md.c (prepare_macpads): Made key const.
2001-05-28 Werner Koch <wk@gnupg.org>
* rndegd.c (gather_random): Removed the use of tty_printf.
2001-03-29 Werner Koch <wk@gnupg.org>
* md5.c (md5_final): Fixed calculation of hashed length. Thanks
to disastry@saiknes.lv for pointing out that it was horrible wrong
for more than 512MB of input.
* sha1.c (sha1_final): Ditto.
* rmd160.c (rmd160_final): Ditto.
* tiger.c (tiger_final): Ditto.
* blowfish.c (encrypt,do_encrypt): Changed name to do_encrypt to
avoid name clashes with an encrypt function in stdlib.h of
Dynix/PIX. Thanks to Gene Carter.
* elgamal.c (encrypt,do_encrypt): Ditto.
* twofish.c (gnupgext_enum_func): Use only when when compiled as a
module.
* rijndael.c (gnupgext_enum_func): Ditto.
* tiger.c (tiger_get_info): Return "TIGER192" and not just
"TIGER". By Edwin Woudt.
* random.c: Always include time.h - standard requirement. Thanks
to James Troup.
* rndw32.c: Fixes to the macros.
2001-01-11 Werner Koch <wk@gnupg.org>
* cipher.c (cipher_encrypt,gcry_cipher_encrypt): Use blocksize and
not 8.
2000-12-19 Werner Koch <wk@gnupg.org>
Major change:
Removed all GnuPG stuff and renamed this piece of software
to gcrypt.
2000-11-14 Werner Koch <wk@gnupg.org>
* dsa.c (test_keys): Replaced mpi_alloc by gcry_mpi_new and
mpi_free by gcry_mpi_release.
* elgamal.c (test_keys,generate): Ditto, also for mpi_alloc_secure.
* rsa.c (test_keys,generate,rsa_verify): Ditto.
* primegen.c (generate_elg_prime): Ditto.
(gen_prime): Ditto and removed nlimbs.
* rsa.c (generate): Allocate 2 more vars in secure memory.
* Makefile.am (OMIT_DEPENDENCIES): Hack to work around dependency
problems.
2000-10-09 Werner Koch <wk@gnupg.org>
* arcfour.c, arcfour.h: New.
* cipher.c (cipher_encrypt, cipher_decrypt): Add stream mode.
(setup_cipher_table): Add Arcfour.
(gcry_cipher_open): Kludge to allow stream mode.
Wed Oct 4 13:16:18 CEST 2000 Werner Koch <wk@openit.de>
* sha1.c (transform): Use rol() macro. Actually this is not needed
for a newer gcc but there are still aoter compilers.
* rsa.c (test_keys): Use new random function.
* md.c (gcry_md_setkey): New function to overcome problems with
const conflics.
(gcry_md_ctl): Pass set key to the new functions.
* rijndael.c: New.
* cipher.c: Add Rijndael support.
Mon Sep 18 16:35:45 CEST 2000 Werner Koch <wk@openit.de>
* rndlinux.c (open_device): Loose random device checking.
By Nils Ellmenreich.
* random.c (fast_random_poll): Check ENOSYS for getrusage.
* rndunix.c: Add 2 sources for QNX. By Sam Roberts.
* pubkey.c (gcry_pk_algo_info): Add GCRYCTL_GET_ALGO_USAGE.
* rsa.c: Changed the comment about the patent.
(secret): Speed up by using the CRT. For a 2k keys this
is about 3 times faster.
(stronger_key_check): New but unused code to check the secret key.
* Makefile.am: Included rsa.[ch].
* pubkey.c: Enabled RSA support.
(pubkey_get_npkey): Removed RSA workaround.
Mon Jul 31 10:04:47 CEST 2000 Werner Koch <wk@openit.de>
* pubkey.c: Replaced all gcry_sexp_{car,cdr}_{data,mpi} by the new
gcry_sexp_nth_{data,mpi} functions.
Tue Jul 25 17:44:15 CEST 2000 Werner Koch <wk@openit.de>
* pubkey.c (exp_to_key,sexp_to_sig,sexp_to_enc,gcry_pk_encrypt,
gcry_pk_decrypt,gcry_pk_sign,gcry_pk_genkey): Changed to work with
the new S-Exp interface.
Mon Jul 17 16:35:47 CEST 2000 Werner Koch <wk@>
* random.c (gather_faked): Replaced make_timestamp by time(2) again.
Fri Jul 14 19:38:23 CEST 2000 Werner Koch <wk@>
* md.c (gcry_md_ctl): Support GCRYCTL_{START,STOP}_DUMP.
* Makefile.am: Never compile mingw32 as module.
* Makefile.am: Tweaked module build and removed libtool
* Makefile.am: Replaced -O1 by -O. Suggested by Alec Habig.
* elgamal.c (sign): Removed inactive code.
* rsa.c, rsa.h: New based on the old module version (only in CVS for now).
* pubkey.c (setup_pubkey_table): Added commented support for RSA.
* rndunix.c (waitpid): New. For UTS 2.1. All by Dave Dykstra.
(my_popen): Do the FD_CLOEXEC only if it is available
(start_gatherer): Cope with missing _SC_OPEN_MAX
* rndunix.c: Add some more headers for QNX. By Sam Roberts.
* rndegd.c (gather_random): Shortcut level 0.
* rndunix.c (gather_random): Ditto.
* rndw32.c (gather_random): Ditto.
* rndw32.c: Replaced with code from Cryptlib and commented the old stuff.
* rndw32.c: Add some debuging code enabled by an environment variable.
* random.c (read_seed_file): Binary open for DOSish system
(update_random_seed_file): Ditto.
* random.c [MINGW32]: Include process.h for getpid.
* random.c (fast_random_poll): Add clock_gettime() as fallback for
system which support this POSIX.4 fucntion. By Sam Roberts.
* random.c (read_seed_file): Removed the S_ISLNK test becuase it
is already covered by !S_ISREG and is not defined in Unixware.
Reported by Dave Dykstra.
(update_random_seed_file): Silently ignore update request when pool
is not filled.
* random.c (read_seed_file): New.
(set_random_seed_file): New.
(read_pool): Try to read the seeding file.
(update_random_seed_file): New.
(read_pool): Do an initial extra seeding when level 2 quality random
is requested the first time. This requestes at least POOLSIZE/2 bytes
of entropy. Compined with the seeding file this should make normal
random bytes cheaper and increase the quality of the random bytes
used for key generation.
* random.c (read_pool): Print a more friendly error message in
cases when too much random is requested in one call.
* random.c (fast_random_poll): Check whether RUSAGE_SELF is defined;
this is not the case for some ESIX and Unixware, although they have
getrusage().
* primegen.c (generate_elg_prime): All primes are now generated with
the lowest random quality level. Because they are public anyway we
don't need stronger random and by this we do not drain the systems
entropy so much.
* primegen.c (register_primegen_progress): New.
* dsa.c (register_pk_dsa_progress): New.
* elgamal.c (register_pk_elg_progress): New.
* elgamal.c (wiener_map): New.
(gen_k): Use a much smaller k.
(generate): Calculate the qbits using the wiener map and
choose an x at a size comparable to the one choosen in gen_k
* rmd160.c (rmd160_get_info): Moved casting to the left side due to a
problem with UTS4.3. Suggested by Dave Dykstra.
* sha1.c (sha1_get_info): Ditto.
* tiger.c (tiger_get_info): Ditto.
* md5.c (md5_get_info): Ditto
* des.c (des_get_info): Ditto.
* blowfish.c (blowfish_get_info): Ditto.
* cast5.c (cast5_get_info): Ditto.
* twofish.c (twofish_get_info): Ditto.
Fri Mar 24 11:25:45 CET 2000 Werner Koch <wk@openit.de>
* md.c (md_open): Add hmac arg and allocate space for the pads.
(md_finalize): Add HMAC support.
(md_copy): Ditto.
(md_close): Ditto.
(gcry_md_reset): Ditto.
(gcry_md_ctl): Ditto.
(prepare_macpdas): New.
Mon Mar 13 19:22:46 CET 2000 Werner Koch <wk@openit.de>
* md.c (gcry_md_hash_buffer): Add support for the other algorithms.
Mon Jan 31 16:37:34 CET 2000 Werner Koch <wk@gnupg.de>
* genprime.c (generate_elg_prime): Fixed returned factors which never
worked for non-DSA keys.
Thu Jan 27 18:00:44 CET 2000 Werner Koch <wk@gnupg.de>
* pubkey.c (sexp_to_key): Fixed mem leaks in case of errors.
Mon Jan 24 22:24:38 CET 2000 Werner Koch <wk@gnupg.de>
* pubkey.c (gcry_pk_decrypt): Implemented.
(gcry_pk_encrypt): Implemented.
(gcry_pk_testkey): New.
(gcry_pk_genkey): New.
(pubkey_decrypt): Made static.
(pubkey_encrypt): Ditto.
(pubkey_check_secret_key): Ditto.
(pubkey_generate): Ditto.
Mon Jan 24 13:04:28 CET 2000 Werner Koch <wk@gnupg.de>
* pubkey.c (pubkey_nbits): Removed and replaced by ...
(gcry_pk_get_nbits): this new one.
Wed Dec 8 21:58:32 CET 1999 Werner Koch <wk@gnupg.de>
* dsa.c: s/mpi_powm/gcry_mpi_powm/g
* elgamal.c: Ditto.
* primegen.c: Ditto.
* : Replaced g10_opt_verbose by g10_log_verbosity().
* Makefile.am (INCLUDES): removed intl, add ../gcrypt
Fri Nov 19 17:15:20 CET 1999 Werner Koch <wk@gnupg.de>
* dynload.c (cmp_filenames): New to replaced compare_filename() in
module.
(register_cipher_extension): Removed the tilde expansion stuff.
* rndeg.c (my_make_filename): New.
* : Replaced header util.h by g10lib.h
* random.c (gather_faked): Replaced make_timestamp by time(2).
Disabled wrning printed with tty_printf.
* rndlinux.c (gather_random): Always use fprintf instead of tty_xxx;
this should be replaced by a callback function.
* primegen.c (gen_prime): Use gcry_mpi_randomize.
(is_prime): Ditto.
* elgamal.c (test_keys): Ditto.
* dsa.c (test_keys): Ditto.
* cipher.c (gcry_cipher_close): Die on invalid handle.
Mon Nov 15 21:36:02 CET 1999 Werner Koch <wk@gnupg.de>
* elgamal.c (gen_k): Use the new random API.
(generate): Ditto.
* dsa.c (gen_k): Ditto.
(generate): Ditto.
Sat Nov 13 17:44:23 CET 1999 Werner Koch <wk@gnupg.de>
* pubkey.c (disable_pubkey_algo): Made static.
(gcry_pk_ctl): New.
* random.c (get_random_bits): Renamed to ...
(get_random_bytes): ... this and made static.
(gcry_random_bytes): New.
(gcry_random_bytes_secure): New.
(randomize_buffer): Renamed to ...
(gcry_randomize): ...this.
* md.c (gcry_md_hash_buffer): New.
* pubkey.c (gcry_pk_algo_info): 4 new commands.
(pubkey_get_npkey): Made static.
(pubkey_get_nskey): Made static.
(pubkey_get_nsig): Made static.
(pubkey_get_nenc): Made static.
* pubkey.c: Removed all G10ERR_xxx.
* cipher.c: Changed all GCRYERR_INV_ALGO to GCRYERR_INV_CIPHER_ALGO.
* md.c: Changed all GCRYERR_INV_ALGO to GCRYERR_INV_MD_ALGO.
* cast5.c (cast_setkey): Changed errocodes to GCRYERR_xxx.
* blowfish.c: Ditto.
* des.c: Ditto.
* twofish.c: Ditto.
* dsa.c: Ditto.
* elgamal.c: Ditto.
* g10c.c: Removed
* cipher.c (gcry_cipher_open): Replaced alloc functions and return NULL
if we are out of core.
* dynload.c: Replaced all memory allocation functions.
* md.c: Ditto.
* primegen.c: Ditto.
* pubkey.c: Ditto.
* random.c: Ditto.
* rndw32.c: Ditto.
* elgamal.c: Ditto.
* dsa.c: Ditto.
Tue Oct 26 14:10:21 CEST 1999 Werner Koch <wk@gnupg.de>
* elgamal.c (sign): Hugh found strange code here. Replaced by BUG().
* cipher.c: Merged with gcrypt/symapi.c.
* pubkey.c (string_to_pubkey_algo): Renamed function to ...
(gcry_pk_map_name): ... this.
(pubkey_algo_to_string): Renamed function to ...
(gcry_pk_algo_name): ... this.
(gcry_pk_algo_info): New.
* pubkey.c: Merged with gcrypt/pkapi.c.
* md.c (md_reset): Clear finalized; thanks to Ulf Moeller for
fixing this bug.
* md.c: Merged with gcrypt/mdapi.c
Wed Sep 15 14:39:59 CEST 1999 Michael Roth <mroth@nessie.de>
* des.c: Various speed improvements: One bit pre rotation
trick after initial permutation (Richard Outerbridge).
Finished test of SSLeay Tripple-DES patterns.
Wed Sep 15 16:22:17 CEST 1999 Werner Koch <wk@isil.d.shuttle.de>
* rndw32.c: New.
Mon Sep 13 10:51:29 CEST 1999 Werner Koch <wk@isil.d.shuttle.de>
* bithelp.h: New.
* rmd160.h, sha1.h, md5.h: Use the rol macro from bithelp.h
Tue Sep 7 16:23:36 CEST 1999 Werner Koch <wk@isil.d.shuttle.de>
* Makefile.am: Fixed seds for latest egcc. By Ollivier Robert.
Mon Sep 6 19:59:08 CEST 1999 Werner Koch <wk@isil.d.shuttle.de>
* des.c (selftest): Add some testpattern
Mon Aug 30 20:38:33 CEST 1999 Werner Koch <wk@isil.d.shuttle.de>
* cipher.c (do_cbc_encrypt): Fixed serious bug occuring when not using
in place encryption. Pointed out by Frank Stajano.
Mon Jul 26 09:34:46 CEST 1999 Werner Koch <wk@isil.d.shuttle.de>
* md5.c (md5_final): Fix for a SCO cpp bug.
Thu Jul 15 10:15:35 CEST 1999 Werner Koch <wk@isil.d.shuttle.de>
* elgamal.c (elg_check_secret_key,elg_encrypt
elg_decrypt,elg_sign,elg_verify): Sanity check on the args.
* dsa.c (dsa_check_secret_key,dsa_sign,dsa_verify): Ditto.
* pubkey.c (disable_pubkey_algo): New.
(check_pubkey_algo2): Look at disabled algo table.
* cipher.c (disable_cipher_algo): New.
(check_cipher_algo): Look at disabled algo table.
Wed Jul 7 13:08:40 CEST 1999 Werner Koch <wk@isil.d.shuttle.de>
* Makefile.am: Support for libtool.
Fri Jul 2 11:45:54 CEST 1999 Werner Koch <wk@isil.d.shuttle.de>
* dsa.c (gen_k): Changed algorithm to consume less random bytes
* elgamal.c (gen_k): Ditto.
* random.c (random_dump_stats): New.
Thu Jul 1 12:47:31 CEST 1999 Werner Koch <wk@isil.d.shuttle.de>
* primegen.c, elgamal.c, dsa.c (progess): New and replaced all
fputc with a call to this function.
Sat Jun 26 12:15:59 CEST 1999 Werner Koch <wk@isil.d.shuttle.de>
* rndegd.c (do_write): s/ssize_t/int/ due to SunOS 4.1 probs.
* cipher.c (do_cbc_encrypt, do_cbc_decrypt): New.
* dynload.c (HAVE_DL_SHL_LOAD): Map hpux API to dlopen (Dave Dykstra).
* Makefile.am (install-exec-hook): Removed.
Sun May 23 14:20:22 CEST 1999 Werner Koch <wk@isil.d.shuttle.de>
* cipher.c (setup_cipher_table): Enable Twofish
* random.c (fast_random_poll): Disable use of times() for mingw32.
Mon May 17 21:54:43 CEST 1999 Werner Koch <wk@isil.d.shuttle.de>
* dynload.c (register_internal_cipher_extension): Minor init fix.
Tue May 4 15:47:53 CEST 1999 Werner Koch <wk@isil.d.shuttle.de>
* primegen.c (gen_prime): Readded the Fermat test. Fixed the bug
that we didn't correct for step when passing the prime to the
Rabin-Miller test which led to bad performance (Stefan Keller).
(check_prime): Add a first Fermat test.
Sun Apr 18 10:11:28 CEST 1999 Werner Koch <wk@isil.d.shuttle.de>
* cipher.c (cipher_setiv): Add ivlen arg, changed all callers.
* random.c (randomize_buffer): alway use secure memory because
we can't use m_is_secure() on a statically allocated buffer.
* twofish.c: Replaced some macros by a loop to reduce text size.
* Makefile.am (twofish): No more need for sed editing.
Fri Apr 9 12:26:25 CEST 1999 Werner Koch <wk@isil.d.shuttle.de>
* cipher.c (cipher_open): Reversed the changes for AUTO_CFB.
* blowfish.c: Dropped the Blowfish 160 mode.
* cipher.c (cipher_open): Ditto.
(setup_cipher_table): Ditto. And removed support of twofish128
Wed Apr 7 20:51:39 CEST 1999 Werner Koch <wk@isil.d.shuttle.de>
* random.c (get_random_bits): Can now handle requests > POOLSIZE
* cipher.c (cipher_open): Now uses standard CFB for automode if
the blocksize is gt 8 (according to rfc2440).
* twofish.c: Applied Matthew Skala's patches for 256 bit key.
Tue Apr 6 19:58:12 CEST 1999 Werner Koch <wk@isil.d.shuttle.de>
* random.c (get_random_bits): Can now handle requests > POOLSIZE
* cipher.c (cipher_open): Now uses standard CFB for automode if
the blocksize is gt 8 (according to rfc2440).
Sat Mar 20 11:44:21 CET 1999 Werner Koch <wk@isil.d.shuttle.de>
* rndlinux.c (tty_printf) [IS_MODULE]: Removed.
* rndegd.c (gather_random): Some fixes.
Wed Mar 17 13:09:03 CET 1999 Werner Koch <wk@isil.d.shuttle.de>
* rndegd.c (do_read): New.
(gather_random): Changed the implementation.
Mon Mar 8 20:47:17 CET 1999 Werner Koch <wk@isil.d.shuttle.de>
* dynload.c (DLSYM_NEEDS_UNDERSCORE): Renamed.
Fri Feb 26 17:55:41 CET 1999 Werner Koch <wk@isil.d.shuttle.de>
* md.c: Nearly a total rewrote.
Wed Feb 24 11:07:27 CET 1999 Werner Koch <wk@isil.d.shuttle.de>
* cipher.c (context): Fixed alignment
* md.c: Ditto.
* rndegd.c: New
Mon Feb 22 20:04:00 CET 1999 Werner Koch <wk@isil.d.shuttle.de>
* rndegd.c: New.
Wed Feb 10 17:15:39 CET 1999 Werner Koch <wk@isil.d.shuttle.de>
* Makefile.am: Modules are now figured out by configure
* construct.c: New. Generated by configure. Changed all modules
to work with that.
* sha1.h: Removed.
* md5.h: Removed.
* twofish.c: Changed interface to allow Twofish/256
* rndunix.c (start_gatherer): Die on SIGPIPE.
Wed Jan 20 18:59:49 CET 1999 Werner Koch <wk@isil.d.shuttle.de>
* rndunix.c (gather_random): Fix to avoid infinite loop.
Sun Jan 17 11:04:33 CET 1999 Werner Koch <wk@isil.d.shuttle.de>
* des.c (is_weak_key): Replace system memcmp due to bugs
in SunOS's memcmp.
(des_get_info): Return error on failed selftest.
* twofish.c (twofish_setkey): Return error on failed selftest or
invalid keylength.
* cast5.c (cast_setkey): Ditto.
* blowfish.c (bf_setkey): Return error on failed selftest.
Tue Jan 12 11:17:18 CET 1999 Werner Koch <wk@isil.d.shuttle.de>
* random.c (random_is_faked): New.
* tiger.c: Only compile if we have the u64 type
Sat Jan 9 16:02:23 CET 1999 Werner Koch <wk@isil.d.shuttle.de>
* rndunix.c (gather_random): check for setuid.
* Makefile.am: Add a way to staically link random modules
Thu Jan 7 18:00:58 CET 1999 Werner Koch <wk@isil.d.shuttle.de>
* md.c (md_stop_debug): Do a flush first.
(md_open): size of buffer now depends on the secure parameter
Sun Jan 3 15:28:44 CET 1999 Werner Koch <wk@isil.d.shuttle.de>
* rndunix.c (start_gatherer): Fixed stupid ==/= bug
1998-12-31 Geoff Keating <geoffk@ozemail.com.au>
* des.c (is_weak_key): Rewrite loop end condition.
Tue Dec 29 14:41:47 CET 1998 Werner Koch <wk@isil.d.shuttle.de>
* random.c: add unistd.h for getpid().
(RAND_MAX): Fallback value for Sun.
Wed Dec 23 17:12:24 CET 1998 Werner Koch <wk@isil.d.shuttle.de>
* md.c (md_copy): Reset debug.
Mon Dec 14 21:18:49 CET 1998 Werner Koch <wk@isil.d.shuttle.de>
* random.c (read_random_source): Changed the interface to the
random gathering function.
(gather_faked): Use new interface.
* dynload.c (dynload_getfnc_fast_random_poll): Ditto.
(dynload_getfnc_gather_random): Ditto.
* rndlinux.c (gather_random): Ditto.
* rndunix.c (gather_random): Ditto.
Sat Dec 12 18:40:32 CET 1998 Werner Koch <wk@isil.d.shuttle.de>
* dynload.c (SYMBOL_VERSION): New to cope with system which needs
underscores.
* rndunix.c: Rewrote large parts
Thu Dec 10 20:15:36 CET 1998 Werner Koch <wk@isil.d.shuttle.de>
* dynload.c (load_extension): increased needed verbosity level.
* random.c (fast_random_poll): Fallback to a default fast random
poll function.
(read_random_source): Always use the faked entroy gatherer if no
gather module is available.
* rndlinux.c (fast_poll): Removed.
* rndunix.c (fast_poll): Removed.
Wed Nov 25 12:33:41 1998 Werner Koch (wk@isil.d.shuttle.de)
* rand-*.c: Removed.
* rndlinux.c : New.
* rndunix.c : New.
* random.c : Restructured the interface to the gather modules.
(intialize): Call constructor functions
(read_radnom_source): Moved to here.
* dynload.c (dynload_getfnc_gather_random): New.
(dynload_getfnc_fast_random_poll): New.
(register_internal_cipher_extension): New.
(register_cipher_extension): Support of internal modules.
Sun Nov 8 17:44:36 1998 Werner Koch (wk@isil.d.shuttle.de)
* rand-unix.c (read_random_source): Removed the assert.
Mon Oct 19 18:34:30 1998 me,,, (wk@tobold)
* pubkey.c: Hack to allow us to give some info about RSA keys back.
Thu Oct 15 11:47:57 1998 Werner Koch (wk@isil.d.shuttle.de)
* dynload.c: Support for DLD
Wed Oct 14 12:13:07 1998 Werner Koch (wk@isil.d.shuttle.de)
* rand-unix.c: Now uses names from configure for /dev/random.
1998-10-10 SL Baur <steve@altair.xemacs.org>
* Makefile.am: fix sed -O substitutions to catch -O6, etc.
Tue Oct 6 10:06:32 1998 Werner Koch (wk@isil.d.shuttle.de)
* rand-unix.c (HAVE_GETTIMEOFDAY): Fixed (was ..GETTIMEOFTIME :-)
* rand-dummy.c (HAVE_GETTIMEOFDAY): Ditto.
Mon Sep 28 13:23:09 1998 Werner Koch (wk@isil.d.shuttle.de)
* md.c (md_digest): New.
(md_reset): New.
Wed Sep 23 12:27:02 1998 Werner Koch (wk@isil.d.shuttle.de)
* tiger.c (TIGER_CONTEXT): moved "buf", so that it is 64 bit aligned.
Mon Sep 21 06:22:53 1998 Werner Koch (wk@(none))
* des.c: Some patches from Michael.
Thu Sep 17 19:00:06 1998 Werner Koch (wk@(none))
* des.c : New file from Michael Roth <mroth@nessie.de>
Mon Sep 14 11:10:55 1998 Werner Koch (wk@(none))
* blowfish.c (bf_setkey): Niklas Hernaeus patch to detect weak keys.
Mon Sep 14 09:19:25 1998 Werner Koch (wk@(none))
* dynload.c (RTLD_NOW): Now defined to 1 if it is undefined.
Mon Sep 7 17:04:33 1998 Werner Koch (wk@(none))
* Makefile.am: Fixes to allow a different build directory
Thu Aug 6 17:25:38 1998 Werner Koch,mobil,,, (wk@tobold)
* random.c (get_random_byte): Removed and changed all callers
to use get_random_bits()
Mon Jul 27 10:30:22 1998 Werner Koch (wk@(none))
* cipher.c : Support for other blocksizes
(cipher_get_blocksize): New.
* twofish.c: New.
* Makefile.am: Add twofish module.
Mon Jul 13 21:30:52 1998 Werner Koch (wk@isil.d.shuttle.de)
* random.c (read_pool): Simple alloc if secure_alloc is not set.
(get_random_bits): Ditto.
Thu Jul 9 13:01:14 1998 Werner Koch (wk@isil.d.shuttle.de)
* dynload.c (load_extension): Function now nbails out if
the program is run setuid.
Wed Jul 8 18:58:23 1998 Werner Koch (wk@isil.d.shuttle.de)
* rmd160.c (rmd160_hash_buffer): New.
Thu Jul 2 10:50:30 1998 Werner Koch (wk@isil.d.shuttle.de)
* cipher.c (cipher_open): algos >=100 use standard CFB
Thu Jun 25 11:18:25 1998 Werner Koch (wk@isil.d.shuttle.de)
* Makefile.am: Support for extensions
Thu Jun 18 12:09:38 1998 Werner Koch (wk@isil.d.shuttle.de)
* random.c (mix_pool): simpler handling for level 0
Mon Jun 15 14:40:48 1998 Werner Koch (wk@isil.d.shuttle.de)
* tiger.c: Removed from dist, will reappear as dynload module
Sat Jun 13 14:16:57 1998 Werner Koch (wk@isil.d.shuttle.de)
* pubkey.c: Major changes to allow extensions. Changed the inteface
of all public key ciphers and added the ability to load extensions
on demand.
* misc.c: Removed.
Wed Jun 10 07:52:08 1998 Werner Koch,mobil,,, (wk@tobold)
* dynload.c: New.
* cipher.c: Major changes to allow extensions.
Mon Jun 8 22:43:00 1998 Werner Koch (wk@isil.d.shuttle.de)
* cipher.c: Major internal chnages to support extensions.
* blowfish.c (blowfish_get_info): New and made all internal
functions static, changed heder.
* cast5.c (cast5_get_info): Likewise.
Mon Jun 8 12:27:52 1998 Werner Koch (wk@isil.d.shuttle.de)
* tiger.c (transform): Fix for big endian
* cipher.c (do_cfb_decrypt): Big endian fix.
Fri May 22 07:30:39 1998 Werner Koch (wk@isil.d.shuttle.de)
* md.c (md_get_oid): Add a new one for TIGER.
Thu May 21 13:24:52 1998 Werner Koch (wk@isil.d.shuttle.de)
* cipher.c: Add support for a dummy cipher
Thu May 14 15:40:36 1998 Werner Koch (wk@isil.d.shuttle.de)
* rmd160.c (transform): fixed sigbus - I should better
add Christian von Roques's new implemenation of rmd160_write.
Fri May 8 18:07:44 1998 Werner Koch (wk@isil.d.shuttle.de)
* rand-internal.h, rand-unix.c, rand-w32.c, rand_dummy.c: New
* random.c: Moved system specific functions to rand-****.c
Fri May 8 14:01:17 1998 Werner Koch (wk@isil.d.shuttle.de)
* random.c (fast_random_poll): add call to gethrtime.
Tue May 5 21:28:55 1998 Werner Koch (wk@isil.d.shuttle.de)
* elgamal.c (elg_generate): choosing x was not correct, could
yield 6 bytes which are not from the random pool, tsss, tsss..
Tue May 5 14:09:06 1998 Werner Koch (wk@isil.d.shuttle.de)
* primegen.c (generate_elg_prime): Add arg mode, changed all
callers and implemented mode 1.
Mon Apr 27 14:41:58 1998 Werner Koch (wk@isil.d.shuttle.de)
* cipher.c (cipher_get_keylen): New.
Sun Apr 26 14:44:52 1998 Werner Koch (wk@isil.d.shuttle.de)
* tiger.c, tiger.h: New.
Wed Apr 8 14:57:11 1998 Werner Koch (wk@isil.d.shuttle.de)
* misc.c (check_pubkey_algo2): New.
Tue Apr 7 18:46:49 1998 Werner Koch (wk@isil.d.shuttle.de)
* cipher.c: New
* misc.c (check_cipher_algo): Moved to cipher.c
* cast5.c: Moved many functions to cipher.c
* blowfish.c: Likewise.
Sat Apr 4 19:52:08 1998 Werner Koch (wk@isil.d.shuttle.de)
* cast5.c: Implemented and tested.
Wed Apr 1 16:38:27 1998 Werner Koch (wk@isil.d.shuttle.de)
* elgamal.c (elg_generate): Faster generation of x in some cases.
Thu Mar 19 13:54:48 1998 Werner Koch (wk@isil.d.shuttle.de)
* blowfish.c (blowfish_decode_cfb): changed XOR operation
(blowfish_encode_cfb): Ditto.
Thu Mar 12 14:04:05 1998 Werner Koch (wk@isil.d.shuttle.de)
* sha1.c (transform): Rewrote
* blowfish.c (encrypt): Unrolled for rounds == 16
(decrypt): Ditto.
Tue Mar 10 16:32:08 1998 Werner Koch (wk@isil.d.shuttle.de)
* rmd160.c (transform): Unrolled the loop.
Tue Mar 10 13:05:14 1998 Werner Koch (wk@isil.d.shuttle.de)
* random.c (read_pool): Add pool_balance stuff.
(get_random_bits): New.
* elgamal.c (elg_generate): Now uses get_random_bits to generate x.
Tue Mar 10 11:33:51 1998 Werner Koch (wk@isil.d.shuttle.de)
* md.c (md_digest_length): New.
Tue Mar 10 11:27:41 1998 Werner Koch (wk@isil.d.shuttle.de)
* dsa.c (dsa_verify): Works.
Mon Mar 9 12:59:08 1998 Werner Koch (wk@isil.d.shuttle.de)
* dsa.c, dsa.h: Removed some unused code.
Wed Mar 4 10:39:22 1998 Werner Koch (wk@isil.d.shuttle.de)
* md.c (md_open): Add call to fast_random_poll.
blowfish.c (blowfish_setkey): Ditto.
Tue Mar 3 13:32:54 1998 Werner Koch (wk@isil.d.shuttle.de)
* rmd160.c (rmd160_mixblock): New.
* random.c: Restructured to start with a new RNG implementation.
* random.h: New.
Mon Mar 2 19:21:46 1998 Werner Koch (wk@isil.d.shuttle.de)
* gost.c, gost.h: Removed because they did only contain trash.
Sun Mar 1 16:42:29 1998 Werner Koch (wk@isil.d.shuttle.de)
* random.c (fill_buffer): removed error message if n == -1.
Fri Feb 27 16:39:34 1998 Werner Koch (wk@isil.d.shuttle.de)
* md.c (md_enable): No init if called twice.
Thu Feb 26 07:57:02 1998 Werner Koch (wk@isil.d.shuttle.de)
* primegen.c (generate_elg_prime): Changed the progress printing.
(gen_prime): Ditto.
Tue Feb 24 12:28:42 1998 Werner Koch (wk@isil.d.shuttle.de)
* md5.c, md.5 : Replaced by a modified version of md5.c from
GNU textutils 1.22.
Wed Feb 18 14:08:30 1998 Werner Koch (wk@isil.d.shuttle.de)
* md.c, md.h : New debugging support
Mon Feb 16 10:08:47 1998 Werner Koch (wk@isil.d.shuttle.de)
* misc.c (cipher_algo_to_string): New
(pubkey_algo_to_string): New.
(digest_algo_to_string): New.
- Copyright 1998,1999,2000,2001,2002,2003,2004,2005,2006
- 2007, 2008, 2009 Free Software Foundation, Inc.
+ Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+ 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
This file is free software; as a special exception the author gives
unlimited permission to copy and/or distribute it, with or without
modifications, as long as this notice is preserved.
This file is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
diff --git a/cipher/md.c b/cipher/md.c
index 9528f6d3..a353f3c3 100644
--- a/cipher/md.c
+++ b/cipher/md.c
@@ -1,1378 +1,1382 @@
/* md.c - message digest dispatcher
* Copyright (C) 1998, 1999, 2002, 2003, 2006,
* 2008 Free Software Foundation, Inc.
*
* This file is part of Libgcrypt.
*
* Libgcrypt is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser general Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* Libgcrypt is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "g10lib.h"
#include "cipher.h"
#include "ath.h"
#include "rmd.h"
/* A dummy extraspec so that we do not need to tests the extraspec
field from the module specification against NULL and instead
directly test the respective fields of extraspecs. */
static md_extra_spec_t dummy_extra_spec;
/* This is the list of the digest implementations included in
libgcrypt. */
static struct digest_table_entry
{
gcry_md_spec_t *digest;
md_extra_spec_t *extraspec;
unsigned int algorithm;
int fips_allowed;
} digest_table[] =
{
#if USE_CRC
/* We allow the CRC algorithms even in FIPS mode because they are
actually no cryptographic primitives. */
{ &_gcry_digest_spec_crc32,
&dummy_extra_spec, GCRY_MD_CRC32, 1 },
{ &_gcry_digest_spec_crc32_rfc1510,
&dummy_extra_spec, GCRY_MD_CRC32_RFC1510, 1 },
{ &_gcry_digest_spec_crc24_rfc2440,
&dummy_extra_spec, GCRY_MD_CRC24_RFC2440, 1 },
#endif
#if USE_MD4
{ &_gcry_digest_spec_md4,
&dummy_extra_spec, GCRY_MD_MD4 },
#endif
#if USE_MD5
{ &_gcry_digest_spec_md5,
&dummy_extra_spec, GCRY_MD_MD5, 1 },
#endif
#if USE_RMD160
{ &_gcry_digest_spec_rmd160,
&dummy_extra_spec, GCRY_MD_RMD160 },
#endif
#if USE_SHA1
{ &_gcry_digest_spec_sha1,
&_gcry_digest_extraspec_sha1, GCRY_MD_SHA1, 1 },
#endif
#if USE_SHA256
{ &_gcry_digest_spec_sha256,
&_gcry_digest_extraspec_sha256, GCRY_MD_SHA256, 1 },
{ &_gcry_digest_spec_sha224,
&_gcry_digest_extraspec_sha224, GCRY_MD_SHA224, 1 },
#endif
#if USE_SHA512
{ &_gcry_digest_spec_sha512,
&_gcry_digest_extraspec_sha512, GCRY_MD_SHA512, 1 },
{ &_gcry_digest_spec_sha384,
&_gcry_digest_extraspec_sha384, GCRY_MD_SHA384, 1 },
#endif
#if USE_TIGER
{ &_gcry_digest_spec_tiger,
&dummy_extra_spec, GCRY_MD_TIGER },
+ { &_gcry_digest_spec_tiger1,
+ &dummy_extra_spec, GCRY_MD_TIGER1 },
+ { &_gcry_digest_spec_tiger2,
+ &dummy_extra_spec, GCRY_MD_TIGER2 },
#endif
#if USE_WHIRLPOOL
{ &_gcry_digest_spec_whirlpool,
&dummy_extra_spec, GCRY_MD_WHIRLPOOL },
#endif
{ NULL },
};
/* List of registered digests. */
static gcry_module_t digests_registered;
/* This is the lock protecting DIGESTS_REGISTERED. */
static ath_mutex_t digests_registered_lock = ATH_MUTEX_INITIALIZER;
/* Flag to check wether the default ciphers have already been
registered. */
static int default_digests_registered;
typedef struct gcry_md_list
{
gcry_md_spec_t *digest;
gcry_module_t module;
struct gcry_md_list *next;
size_t actual_struct_size; /* Allocated size of this structure. */
PROPERLY_ALIGNED_TYPE context;
} GcryDigestEntry;
/* this structure is put right after the gcry_md_hd_t buffer, so that
* only one memory block is needed. */
struct gcry_md_context
{
int magic;
size_t actual_handle_size; /* Allocated size of this handle. */
int secure;
FILE *debug;
int finalized;
GcryDigestEntry *list;
byte *macpads;
int macpads_Bsize; /* Blocksize as used for the HMAC pads. */
};
#define CTX_MAGIC_NORMAL 0x11071961
#define CTX_MAGIC_SECURE 0x16917011
/* Convenient macro for registering the default digests. */
#define REGISTER_DEFAULT_DIGESTS \
do \
{ \
ath_mutex_lock (&digests_registered_lock); \
if (! default_digests_registered) \
{ \
md_register_default (); \
default_digests_registered = 1; \
} \
ath_mutex_unlock (&digests_registered_lock); \
} \
while (0)
static const char * digest_algo_to_string( int algo );
static gcry_err_code_t check_digest_algo (int algo);
static gcry_err_code_t md_open (gcry_md_hd_t *h, int algo,
int secure, int hmac);
static gcry_err_code_t md_enable (gcry_md_hd_t hd, int algo);
static gcry_err_code_t md_copy (gcry_md_hd_t a, gcry_md_hd_t *b);
static void md_close (gcry_md_hd_t a);
static void md_write (gcry_md_hd_t a, const void *inbuf, size_t inlen);
static void md_final(gcry_md_hd_t a);
static byte *md_read( gcry_md_hd_t a, int algo );
static int md_get_algo( gcry_md_hd_t a );
static int md_digest_length( int algo );
static const byte *md_asn_oid( int algo, size_t *asnlen, size_t *mdlen );
static void md_start_debug ( gcry_md_hd_t a, const char *suffix );
static void md_stop_debug ( gcry_md_hd_t a );
/* Internal function. Register all the ciphers included in
CIPHER_TABLE. Returns zero on success or an error code. */
static void
md_register_default (void)
{
gcry_err_code_t err = 0;
int i;
for (i = 0; !err && digest_table[i].digest; i++)
{
if ( fips_mode ())
{
if (!digest_table[i].fips_allowed)
continue;
if (digest_table[i].algorithm == GCRY_MD_MD5
&& _gcry_enforced_fips_mode () )
continue; /* Do not register in enforced fips mode. */
}
err = _gcry_module_add (&digests_registered,
digest_table[i].algorithm,
(void *) digest_table[i].digest,
(void *) digest_table[i].extraspec,
NULL);
}
if (err)
BUG ();
}
/* Internal callback function. */
static int
gcry_md_lookup_func_name (void *spec, void *data)
{
gcry_md_spec_t *digest = (gcry_md_spec_t *) spec;
char *name = (char *) data;
return (! stricmp (digest->name, name));
}
/* Internal callback function. Used via _gcry_module_lookup. */
static int
gcry_md_lookup_func_oid (void *spec, void *data)
{
gcry_md_spec_t *digest = (gcry_md_spec_t *) spec;
char *oid = (char *) data;
gcry_md_oid_spec_t *oid_specs = digest->oids;
int ret = 0, i;
if (oid_specs)
{
for (i = 0; oid_specs[i].oidstring && (! ret); i++)
if (! stricmp (oid, oid_specs[i].oidstring))
ret = 1;
}
return ret;
}
/* Internal function. Lookup a digest entry by it's name. */
static gcry_module_t
gcry_md_lookup_name (const char *name)
{
gcry_module_t digest;
digest = _gcry_module_lookup (digests_registered, (void *) name,
gcry_md_lookup_func_name);
return digest;
}
/* Internal function. Lookup a cipher entry by it's oid. */
static gcry_module_t
gcry_md_lookup_oid (const char *oid)
{
gcry_module_t digest;
digest = _gcry_module_lookup (digests_registered, (void *) oid,
gcry_md_lookup_func_oid);
return digest;
}
/* Register a new digest module whose specification can be found in
DIGEST. On success, a new algorithm ID is stored in ALGORITHM_ID
and a pointer representhing this module is stored in MODULE. */
gcry_error_t
_gcry_md_register (gcry_md_spec_t *digest,
md_extra_spec_t *extraspec,
unsigned int *algorithm_id,
gcry_module_t *module)
{
gcry_err_code_t err = 0;
gcry_module_t mod;
/* We do not support module loading in fips mode. */
if (fips_mode ())
return gpg_error (GPG_ERR_NOT_SUPPORTED);
ath_mutex_lock (&digests_registered_lock);
err = _gcry_module_add (&digests_registered, 0,
(void *) digest,
(void *)(extraspec? extraspec : &dummy_extra_spec),
&mod);
ath_mutex_unlock (&digests_registered_lock);
if (! err)
{
*module = mod;
*algorithm_id = mod->mod_id;
}
return gcry_error (err);
}
/* Unregister the digest identified by ID, which must have been
registered with gcry_digest_register. */
void
gcry_md_unregister (gcry_module_t module)
{
ath_mutex_lock (&digests_registered_lock);
_gcry_module_release (module);
ath_mutex_unlock (&digests_registered_lock);
}
static int
search_oid (const char *oid, int *algorithm, gcry_md_oid_spec_t *oid_spec)
{
gcry_module_t module;
int ret = 0;
if (oid && ((! strncmp (oid, "oid.", 4))
|| (! strncmp (oid, "OID.", 4))))
oid += 4;
module = gcry_md_lookup_oid (oid);
if (module)
{
gcry_md_spec_t *digest = module->spec;
int i;
for (i = 0; digest->oids[i].oidstring && !ret; i++)
if (! stricmp (oid, digest->oids[i].oidstring))
{
if (algorithm)
*algorithm = module->mod_id;
if (oid_spec)
*oid_spec = digest->oids[i];
ret = 1;
}
_gcry_module_release (module);
}
return ret;
}
/****************
* Map a string to the digest algo
*/
int
gcry_md_map_name (const char *string)
{
gcry_module_t digest;
int ret, algorithm = 0;
if (! string)
return 0;
REGISTER_DEFAULT_DIGESTS;
/* If the string starts with a digit (optionally prefixed with
either "OID." or "oid."), we first look into our table of ASN.1
object identifiers to figure out the algorithm */
ath_mutex_lock (&digests_registered_lock);
ret = search_oid (string, &algorithm, NULL);
if (! ret)
{
/* Not found, search a matching digest name. */
digest = gcry_md_lookup_name (string);
if (digest)
{
algorithm = digest->mod_id;
_gcry_module_release (digest);
}
}
ath_mutex_unlock (&digests_registered_lock);
return algorithm;
}
/****************
* Map a digest algo to a string
*/
static const char *
digest_algo_to_string (int algorithm)
{
const char *name = NULL;
gcry_module_t digest;
REGISTER_DEFAULT_DIGESTS;
ath_mutex_lock (&digests_registered_lock);
digest = _gcry_module_lookup_id (digests_registered, algorithm);
if (digest)
{
name = ((gcry_md_spec_t *) digest->spec)->name;
_gcry_module_release (digest);
}
ath_mutex_unlock (&digests_registered_lock);
return name;
}
/****************
* This function simply returns the name of the algorithm or some constant
* string when there is no algo. It will never return NULL.
* Use the macro gcry_md_test_algo() to check whether the algorithm
* is valid.
*/
const char *
gcry_md_algo_name (int algorithm)
{
const char *s = digest_algo_to_string (algorithm);
return s ? s : "?";
}
static gcry_err_code_t
check_digest_algo (int algorithm)
{
gcry_err_code_t rc = 0;
gcry_module_t digest;
REGISTER_DEFAULT_DIGESTS;
ath_mutex_lock (&digests_registered_lock);
digest = _gcry_module_lookup_id (digests_registered, algorithm);
if (digest)
_gcry_module_release (digest);
else
rc = GPG_ERR_DIGEST_ALGO;
ath_mutex_unlock (&digests_registered_lock);
return rc;
}
/****************
* Open a message digest handle for use with algorithm ALGO.
* More algorithms may be added by md_enable(). The initial algorithm
* may be 0.
*/
static gcry_err_code_t
md_open (gcry_md_hd_t *h, int algo, int secure, int hmac)
{
gcry_err_code_t err = GPG_ERR_NO_ERROR;
int bufsize = secure ? 512 : 1024;
struct gcry_md_context *ctx;
gcry_md_hd_t hd;
size_t n;
/* Allocate a memory area to hold the caller visible buffer with it's
* control information and the data required by this module. Set the
* context pointer at the beginning to this area.
* We have to use this strange scheme because we want to hide the
* internal data but have a variable sized buffer.
*
* +---+------+---........------+-------------+
* !ctx! bctl ! buffer ! private !
* +---+------+---........------+-------------+
* ! ^
* !---------------------------!
*
* We have to make sure that private is well aligned.
*/
n = sizeof (struct gcry_md_handle) + bufsize;
n = ((n + sizeof (PROPERLY_ALIGNED_TYPE) - 1)
/ sizeof (PROPERLY_ALIGNED_TYPE)) * sizeof (PROPERLY_ALIGNED_TYPE);
/* Allocate and set the Context pointer to the private data */
if (secure)
hd = gcry_malloc_secure (n + sizeof (struct gcry_md_context));
else
hd = gcry_malloc (n + sizeof (struct gcry_md_context));
if (! hd)
err = gpg_err_code_from_errno (errno);
if (! err)
{
hd->ctx = ctx = (struct gcry_md_context *) ((char *) hd + n);
/* Setup the globally visible data (bctl in the diagram).*/
hd->bufsize = n - sizeof (struct gcry_md_handle) + 1;
hd->bufpos = 0;
/* Initialize the private data. */
memset (hd->ctx, 0, sizeof *hd->ctx);
ctx->magic = secure ? CTX_MAGIC_SECURE : CTX_MAGIC_NORMAL;
ctx->actual_handle_size = n + sizeof (struct gcry_md_context);
ctx->secure = secure;
if (hmac)
{
switch (algo)
{
case GCRY_MD_SHA384:
case GCRY_MD_SHA512:
ctx->macpads_Bsize = 128;
break;
default:
ctx->macpads_Bsize = 64;
break;
}
ctx->macpads = gcry_malloc_secure (2*(ctx->macpads_Bsize));
if (!ctx->macpads)
{
err = gpg_err_code_from_errno (errno);
md_close (hd);
}
}
}
if (! err)
{
/* Hmmm, should we really do that? - yes [-wk] */
_gcry_fast_random_poll ();
if (algo)
{
err = md_enable (hd, algo);
if (err)
md_close (hd);
}
}
if (! err)
*h = hd;
return err;
}
/* Create a message digest object for algorithm ALGO. FLAGS may be
given as an bitwise OR of the gcry_md_flags values. ALGO may be
given as 0 if the algorithms to be used are later set using
gcry_md_enable. H is guaranteed to be a valid handle or NULL on
error. */
gcry_error_t
gcry_md_open (gcry_md_hd_t *h, int algo, unsigned int flags)
{
gcry_err_code_t err = GPG_ERR_NO_ERROR;
gcry_md_hd_t hd;
if ((flags & ~(GCRY_MD_FLAG_SECURE | GCRY_MD_FLAG_HMAC)))
err = GPG_ERR_INV_ARG;
else
{
err = md_open (&hd, algo, (flags & GCRY_MD_FLAG_SECURE),
(flags & GCRY_MD_FLAG_HMAC));
}
*h = err? NULL : hd;
return gcry_error (err);
}
static gcry_err_code_t
md_enable (gcry_md_hd_t hd, int algorithm)
{
struct gcry_md_context *h = hd->ctx;
gcry_md_spec_t *digest = NULL;
GcryDigestEntry *entry;
gcry_module_t module;
gcry_err_code_t err = 0;
for (entry = h->list; entry; entry = entry->next)
if (entry->module->mod_id == algorithm)
return err; /* already enabled */
REGISTER_DEFAULT_DIGESTS;
ath_mutex_lock (&digests_registered_lock);
module = _gcry_module_lookup_id (digests_registered, algorithm);
ath_mutex_unlock (&digests_registered_lock);
if (! module)
{
log_debug ("md_enable: algorithm %d not available\n", algorithm);
err = GPG_ERR_DIGEST_ALGO;
}
else
digest = (gcry_md_spec_t *) module->spec;
if (!err && algorithm == GCRY_MD_MD5 && fips_mode ())
{
_gcry_inactivate_fips_mode ("MD5 used");
if (_gcry_enforced_fips_mode () )
{
/* We should never get to here because we do not register
MD5 in enforced fips mode. But better throw an error. */
err = GPG_ERR_DIGEST_ALGO;
}
}
if (!err)
{
size_t size = (sizeof (*entry)
+ digest->contextsize
- sizeof (entry->context));
/* And allocate a new list entry. */
if (h->secure)
entry = gcry_malloc_secure (size);
else
entry = gcry_malloc (size);
if (! entry)
err = gpg_err_code_from_errno (errno);
else
{
entry->digest = digest;
entry->module = module;
entry->next = h->list;
entry->actual_struct_size = size;
h->list = entry;
/* And init this instance. */
entry->digest->init (&entry->context.c);
}
}
if (err)
{
if (module)
{
ath_mutex_lock (&digests_registered_lock);
_gcry_module_release (module);
ath_mutex_unlock (&digests_registered_lock);
}
}
return err;
}
gcry_error_t
gcry_md_enable (gcry_md_hd_t hd, int algorithm)
{
return gcry_error (md_enable (hd, algorithm));
}
static gcry_err_code_t
md_copy (gcry_md_hd_t ahd, gcry_md_hd_t *b_hd)
{
gcry_err_code_t err = GPG_ERR_NO_ERROR;
struct gcry_md_context *a = ahd->ctx;
struct gcry_md_context *b;
GcryDigestEntry *ar, *br;
gcry_md_hd_t bhd;
size_t n;
if (ahd->bufpos)
md_write (ahd, NULL, 0);
n = (char *) ahd->ctx - (char *) ahd;
if (a->secure)
bhd = gcry_malloc_secure (n + sizeof (struct gcry_md_context));
else
bhd = gcry_malloc (n + sizeof (struct gcry_md_context));
if (! bhd)
err = gpg_err_code_from_errno (errno);
if (! err)
{
bhd->ctx = b = (struct gcry_md_context *) ((char *) bhd + n);
/* No need to copy the buffer due to the write above. */
gcry_assert (ahd->bufsize == (n - sizeof (struct gcry_md_handle) + 1));
bhd->bufsize = ahd->bufsize;
bhd->bufpos = 0;
gcry_assert (! ahd->bufpos);
memcpy (b, a, sizeof *a);
b->list = NULL;
b->debug = NULL;
if (a->macpads)
{
b->macpads = gcry_malloc_secure (2*(a->macpads_Bsize));
if (! b->macpads)
{
err = gpg_err_code_from_errno (errno);
md_close (bhd);
}
else
memcpy (b->macpads, a->macpads, (2*(a->macpads_Bsize)));
}
}
/* Copy the complete list of algorithms. The copied list is
reversed, but that doesn't matter. */
if (!err)
{
for (ar = a->list; ar; ar = ar->next)
{
if (a->secure)
br = gcry_malloc_secure (sizeof *br
+ ar->digest->contextsize
- sizeof(ar->context));
else
br = gcry_malloc (sizeof *br
+ ar->digest->contextsize
- sizeof (ar->context));
if (!br)
{
err = gpg_err_code_from_errno (errno);
md_close (bhd);
break;
}
memcpy (br, ar, (sizeof (*br) + ar->digest->contextsize
- sizeof (ar->context)));
br->next = b->list;
b->list = br;
/* Add a reference to the module. */
ath_mutex_lock (&digests_registered_lock);
_gcry_module_use (br->module);
ath_mutex_unlock (&digests_registered_lock);
}
}
if (a->debug && !err)
md_start_debug (bhd, "unknown");
if (!err)
*b_hd = bhd;
return err;
}
gcry_error_t
gcry_md_copy (gcry_md_hd_t *handle, gcry_md_hd_t hd)
{
gcry_err_code_t err;
err = md_copy (hd, handle);
if (err)
*handle = NULL;
return gcry_error (err);
}
/*
* Reset all contexts and discard any buffered stuff. This may be used
* instead of a md_close(); md_open().
*/
void
gcry_md_reset (gcry_md_hd_t a)
{
GcryDigestEntry *r;
/* Note: We allow this even in fips non operational mode. */
a->bufpos = a->ctx->finalized = 0;
for (r = a->ctx->list; r; r = r->next)
{
memset (r->context.c, 0, r->digest->contextsize);
(*r->digest->init) (&r->context.c);
}
if (a->ctx->macpads)
md_write (a, a->ctx->macpads, a->ctx->macpads_Bsize); /* inner pad */
}
static void
md_close (gcry_md_hd_t a)
{
GcryDigestEntry *r, *r2;
if (! a)
return;
if (a->ctx->debug)
md_stop_debug (a);
for (r = a->ctx->list; r; r = r2)
{
r2 = r->next;
ath_mutex_lock (&digests_registered_lock);
_gcry_module_release (r->module);
ath_mutex_unlock (&digests_registered_lock);
wipememory (r, r->actual_struct_size);
gcry_free (r);
}
if (a->ctx->macpads)
{
wipememory (a->ctx->macpads, 2*(a->ctx->macpads_Bsize));
gcry_free(a->ctx->macpads);
}
wipememory (a, a->ctx->actual_handle_size);
gcry_free(a);
}
void
gcry_md_close (gcry_md_hd_t hd)
{
/* Note: We allow this even in fips non operational mode. */
md_close (hd);
}
static void
md_write (gcry_md_hd_t a, const void *inbuf, size_t inlen)
{
GcryDigestEntry *r;
if (a->ctx->debug)
{
if (a->bufpos && fwrite (a->buf, a->bufpos, 1, a->ctx->debug) != 1)
BUG();
if (inlen && fwrite (inbuf, inlen, 1, a->ctx->debug) != 1)
BUG();
}
for (r = a->ctx->list; r; r = r->next)
{
if (a->bufpos)
(*r->digest->write) (&r->context.c, a->buf, a->bufpos);
(*r->digest->write) (&r->context.c, inbuf, inlen);
}
a->bufpos = 0;
}
void
gcry_md_write (gcry_md_hd_t hd, const void *inbuf, size_t inlen)
{
md_write (hd, inbuf, inlen);
}
static void
md_final (gcry_md_hd_t a)
{
GcryDigestEntry *r;
if (a->ctx->finalized)
return;
if (a->bufpos)
md_write (a, NULL, 0);
for (r = a->ctx->list; r; r = r->next)
(*r->digest->final) (&r->context.c);
a->ctx->finalized = 1;
if (a->ctx->macpads)
{
/* Finish the hmac. */
int algo = md_get_algo (a);
byte *p = md_read (a, algo);
size_t dlen = md_digest_length (algo);
gcry_md_hd_t om;
gcry_err_code_t err = md_open (&om, algo, a->ctx->secure, 0);
if (err)
_gcry_fatal_error (err, NULL);
md_write (om,
(a->ctx->macpads)+(a->ctx->macpads_Bsize),
a->ctx->macpads_Bsize);
md_write (om, p, dlen);
md_final (om);
/* Replace our digest with the mac (they have the same size). */
memcpy (p, md_read (om, algo), dlen);
md_close (om);
}
}
static gcry_err_code_t
prepare_macpads (gcry_md_hd_t hd, const unsigned char *key, size_t keylen)
{
int i;
int algo = md_get_algo (hd);
unsigned char *helpkey = NULL;
unsigned char *ipad, *opad;
if (!algo)
return GPG_ERR_DIGEST_ALGO; /* Might happen if no algo is enabled. */
if ( keylen > hd->ctx->macpads_Bsize )
{
helpkey = gcry_malloc_secure (md_digest_length (algo));
if (!helpkey)
return gpg_err_code_from_errno (errno);
gcry_md_hash_buffer (algo, helpkey, key, keylen);
key = helpkey;
keylen = md_digest_length (algo);
gcry_assert ( keylen <= hd->ctx->macpads_Bsize );
}
memset ( hd->ctx->macpads, 0, 2*(hd->ctx->macpads_Bsize) );
ipad = hd->ctx->macpads;
opad = (hd->ctx->macpads)+(hd->ctx->macpads_Bsize);
memcpy ( ipad, key, keylen );
memcpy ( opad, key, keylen );
for (i=0; i < hd->ctx->macpads_Bsize; i++ )
{
ipad[i] ^= 0x36;
opad[i] ^= 0x5c;
}
gcry_free (helpkey);
return GPG_ERR_NO_ERROR;
}
gcry_error_t
gcry_md_ctl (gcry_md_hd_t hd, int cmd, void *buffer, size_t buflen)
{
gcry_err_code_t rc = 0;
switch (cmd)
{
case GCRYCTL_FINALIZE:
md_final (hd);
break;
case GCRYCTL_SET_KEY:
rc = gcry_err_code (gcry_md_setkey (hd, buffer, buflen));
break;
case GCRYCTL_START_DUMP:
md_start_debug (hd, buffer);
break;
case GCRYCTL_STOP_DUMP:
md_stop_debug ( hd );
break;
default:
rc = GPG_ERR_INV_OP;
}
return gcry_error (rc);
}
gcry_error_t
gcry_md_setkey (gcry_md_hd_t hd, const void *key, size_t keylen)
{
gcry_err_code_t rc = GPG_ERR_NO_ERROR;
if (!hd->ctx->macpads)
rc = GPG_ERR_CONFLICT;
else
{
rc = prepare_macpads (hd, key, keylen);
if (! rc)
gcry_md_reset (hd);
}
return gcry_error (rc);
}
/* The new debug interface. If SUFFIX is a string it creates an debug
file for the context HD. IF suffix is NULL, the file is closed and
debugging is stopped. */
void
gcry_md_debug (gcry_md_hd_t hd, const char *suffix)
{
if (suffix)
md_start_debug (hd, suffix);
else
md_stop_debug (hd);
}
/****************
* if ALGO is null get the digest for the used algo (which should be only one)
*/
static byte *
md_read( gcry_md_hd_t a, int algo )
{
GcryDigestEntry *r = a->ctx->list;
if (! algo)
{
/* Return the first algorithm */
if (r)
{
if (r->next)
log_debug ("more than one algorithm in md_read(0)\n");
return r->digest->read (&r->context.c);
}
}
else
{
for (r = a->ctx->list; r; r = r->next)
if (r->module->mod_id == algo)
return r->digest->read (&r->context.c);
}
BUG();
return NULL;
}
/*
* Read out the complete digest, this function implictly finalizes
* the hash.
*/
byte *
gcry_md_read (gcry_md_hd_t hd, int algo)
{
/* This function is expected to always return a digest, thus we
can't return an error which we actually should do in
non-operational state. */
gcry_md_ctl (hd, GCRYCTL_FINALIZE, NULL, 0);
return md_read (hd, algo);
}
/*
* Read out an intermediate digest. Not yet functional.
*/
gcry_err_code_t
gcry_md_get (gcry_md_hd_t hd, int algo, byte *buffer, int buflen)
{
(void)hd;
(void)algo;
(void)buffer;
(void)buflen;
/*md_digest ... */
fips_signal_error ("unimplemented function called");
return GPG_ERR_INTERNAL;
}
/*
* Shortcut function to hash a buffer with a given algo. The only
* guaranteed supported algorithms are RIPE-MD160 and SHA-1. The
* supplied digest buffer must be large enough to store the resulting
* hash. No error is returned, the function will abort on an invalid
* algo. DISABLED_ALGOS are ignored here. */
void
gcry_md_hash_buffer (int algo, void *digest,
const void *buffer, size_t length)
{
if (algo == GCRY_MD_SHA1)
_gcry_sha1_hash_buffer (digest, buffer, length);
else if (algo == GCRY_MD_RMD160 && !fips_mode () )
_gcry_rmd160_hash_buffer (digest, buffer, length);
else
{
/* For the others we do not have a fast function, so we use the
normal functions. */
gcry_md_hd_t h;
gpg_err_code_t err;
if (algo == GCRY_MD_MD5 && fips_mode ())
{
_gcry_inactivate_fips_mode ("MD5 used");
if (_gcry_enforced_fips_mode () )
{
/* We should never get to here because we do not register
MD5 in enforced fips mode. */
_gcry_fips_noreturn ();
}
}
err = md_open (&h, algo, 0, 0);
if (err)
log_bug ("gcry_md_open failed for algo %d: %s",
algo, gpg_strerror (gcry_error(err)));
md_write (h, (byte *) buffer, length);
md_final (h);
memcpy (digest, md_read (h, algo), md_digest_length (algo));
md_close (h);
}
}
static int
md_get_algo (gcry_md_hd_t a)
{
GcryDigestEntry *r = a->ctx->list;
if (r && r->next)
{
fips_signal_error ("possible usage error");
log_error ("WARNING: more than one algorithm in md_get_algo()\n");
}
return r ? r->module->mod_id : 0;
}
int
gcry_md_get_algo (gcry_md_hd_t hd)
{
return md_get_algo (hd);
}
/****************
* Return the length of the digest
*/
static int
md_digest_length (int algorithm)
{
gcry_module_t digest;
int mdlen = 0;
REGISTER_DEFAULT_DIGESTS;
ath_mutex_lock (&digests_registered_lock);
digest = _gcry_module_lookup_id (digests_registered, algorithm);
if (digest)
{
mdlen = ((gcry_md_spec_t *) digest->spec)->mdlen;
_gcry_module_release (digest);
}
ath_mutex_unlock (&digests_registered_lock);
return mdlen;
}
/****************
* Return the length of the digest in bytes.
* This function will return 0 in case of errors.
*/
unsigned int
gcry_md_get_algo_dlen (int algorithm)
{
return md_digest_length (algorithm);
}
/* Hmmm: add a mode to enumerate the OIDs
* to make g10/sig-check.c more portable */
static const byte *
md_asn_oid (int algorithm, size_t *asnlen, size_t *mdlen)
{
const byte *asnoid = NULL;
gcry_module_t digest;
REGISTER_DEFAULT_DIGESTS;
ath_mutex_lock (&digests_registered_lock);
digest = _gcry_module_lookup_id (digests_registered, algorithm);
if (digest)
{
if (asnlen)
*asnlen = ((gcry_md_spec_t *) digest->spec)->asnlen;
if (mdlen)
*mdlen = ((gcry_md_spec_t *) digest->spec)->mdlen;
asnoid = ((gcry_md_spec_t *) digest->spec)->asnoid;
_gcry_module_release (digest);
}
else
log_bug ("no ASN.1 OID for md algo %d\n", algorithm);
ath_mutex_unlock (&digests_registered_lock);
return asnoid;
}
/****************
* Return information about the given cipher algorithm
* WHAT select the kind of information returned:
* GCRYCTL_TEST_ALGO:
* Returns 0 when the specified algorithm is available for use.
* buffer and nbytes must be zero.
* GCRYCTL_GET_ASNOID:
* Return the ASNOID of the algorithm in buffer. if buffer is NULL, only
* the required length is returned.
*
* Note: Because this function is in most cases used to return an
* integer value, we can make it easier for the caller to just look at
* the return value. The caller will in all cases consult the value
* and thereby detecting whether a error occured or not (i.e. while checking
* the block size)
*/
gcry_error_t
gcry_md_algo_info (int algo, int what, void *buffer, size_t *nbytes)
{
gcry_err_code_t err = GPG_ERR_NO_ERROR;
switch (what)
{
case GCRYCTL_TEST_ALGO:
if (buffer || nbytes)
err = GPG_ERR_INV_ARG;
else
err = check_digest_algo (algo);
break;
case GCRYCTL_GET_ASNOID:
/* We need to check that the algo is available because
md_asn_oid would otherwise raise an assertion. */
err = check_digest_algo (algo);
if (!err)
{
const char unsigned *asn;
size_t asnlen;
asn = md_asn_oid (algo, &asnlen, NULL);
if (buffer && (*nbytes >= asnlen))
{
memcpy (buffer, asn, asnlen);
*nbytes = asnlen;
}
else if (!buffer && nbytes)
*nbytes = asnlen;
else
{
if (buffer)
err = GPG_ERR_TOO_SHORT;
else
err = GPG_ERR_INV_ARG;
}
}
break;
default:
err = GPG_ERR_INV_OP;
}
return gcry_error (err);
}
static void
md_start_debug ( gcry_md_hd_t md, const char *suffix )
{
static int idx=0;
char buf[50];
if (fips_mode ())
return;
if ( md->ctx->debug )
{
log_debug("Oops: md debug already started\n");
return;
}
idx++;
snprintf (buf, DIM(buf)-1, "dbgmd-%05d.%.10s", idx, suffix );
md->ctx->debug = fopen(buf, "w");
if ( !md->ctx->debug )
log_debug("md debug: can't open %s\n", buf );
}
static void
md_stop_debug( gcry_md_hd_t md )
{
if ( md->ctx->debug )
{
if ( md->bufpos )
md_write ( md, NULL, 0 );
fclose (md->ctx->debug);
md->ctx->debug = NULL;
}
#ifdef HAVE_U64_TYPEDEF
{ /* a kludge to pull in the __muldi3 for Solaris */
volatile u32 a = (u32)(ulong)md;
volatile u64 b = 42;
volatile u64 c;
c = a * b;
}
#endif
}
/*
* Return information about the digest handle.
* GCRYCTL_IS_SECURE:
* Returns 1 when the handle works on secured memory
* otherwise 0 is returned. There is no error return.
* GCRYCTL_IS_ALGO_ENABLED:
* Returns 1 if the algo is enabled for that handle.
* The algo must be passed as the address of an int.
*/
gcry_error_t
gcry_md_info (gcry_md_hd_t h, int cmd, void *buffer, size_t *nbytes)
{
gcry_err_code_t err = GPG_ERR_NO_ERROR;
switch (cmd)
{
case GCRYCTL_IS_SECURE:
*nbytes = h->ctx->secure;
break;
case GCRYCTL_IS_ALGO_ENABLED:
{
GcryDigestEntry *r;
int algo;
if ( !buffer || (nbytes && (*nbytes != sizeof (int))))
err = GPG_ERR_INV_ARG;
else
{
algo = *(int*)buffer;
*nbytes = 0;
for(r=h->ctx->list; r; r = r->next ) {
if (r->module->mod_id == algo)
{
*nbytes = 1;
break;
}
}
}
break;
}
default:
err = GPG_ERR_INV_OP;
}
return gcry_error (err);
}
/* Explicitly initialize this module. */
gcry_err_code_t
_gcry_md_init (void)
{
gcry_err_code_t err = GPG_ERR_NO_ERROR;
REGISTER_DEFAULT_DIGESTS;
return err;
}
int
gcry_md_is_secure (gcry_md_hd_t a)
{
size_t value;
if (gcry_md_info (a, GCRYCTL_IS_SECURE, NULL, &value))
value = 1; /* It seems to be better to assume secure memory on
error. */
return value;
}
int
gcry_md_is_enabled (gcry_md_hd_t a, int algo)
{
size_t value;
value = sizeof algo;
if (gcry_md_info (a, GCRYCTL_IS_ALGO_ENABLED, &algo, &value))
value = 0;
return value;
}
/* Get a list consisting of the IDs of the loaded message digest
modules. If LIST is zero, write the number of loaded message
digest modules to LIST_LENGTH and return. If LIST is non-zero, the
first *LIST_LENGTH algorithm IDs are stored in LIST, which must be
of according size. In case there are less message digest modules
than *LIST_LENGTH, *LIST_LENGTH is updated to the correct
number. */
gcry_error_t
gcry_md_list (int *list, int *list_length)
{
gcry_err_code_t err = GPG_ERR_NO_ERROR;
ath_mutex_lock (&digests_registered_lock);
err = _gcry_module_list (digests_registered, list, list_length);
ath_mutex_unlock (&digests_registered_lock);
return err;
}
/* Run the selftests for digest algorithm ALGO with optional reporting
function REPORT. */
gpg_error_t
_gcry_md_selftest (int algo, int extended, selftest_report_func_t report)
{
gcry_module_t module = NULL;
cipher_extra_spec_t *extraspec = NULL;
gcry_err_code_t ec = 0;
REGISTER_DEFAULT_DIGESTS;
ath_mutex_lock (&digests_registered_lock);
module = _gcry_module_lookup_id (digests_registered, algo);
if (module && !(module->flags & FLAG_MODULE_DISABLED))
extraspec = module->extraspec;
ath_mutex_unlock (&digests_registered_lock);
if (extraspec && extraspec->selftest)
ec = extraspec->selftest (algo, extended, report);
else
{
ec = GPG_ERR_DIGEST_ALGO;
if (report)
report ("digest", algo, "module",
module && !(module->flags & FLAG_MODULE_DISABLED)?
"no selftest available" :
module? "algorithm disabled" : "algorithm not found");
}
if (module)
{
ath_mutex_lock (&digests_registered_lock);
_gcry_module_release (module);
ath_mutex_unlock (&digests_registered_lock);
}
return gpg_error (ec);
}
diff --git a/cipher/tiger.c b/cipher/tiger.c
index 320cdb19..88fd3483 100644
--- a/cipher/tiger.c
+++ b/cipher/tiger.c
@@ -1,850 +1,911 @@
/* tiger.c - The TIGER hash function
- * Copyright (C) 1998, 2001, 2002, 2003 Free Software Foundation, Inc.
+ * Copyright (C) 1998, 2001, 2002, 2003, 2010 Free Software Foundation, Inc.
*
* This file is part of Libgcrypt.
*
* Libgcrypt is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* Libgcrypt is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
+/* See http://www.cs.technion.ac.il/~biham/Reports/Tiger/ */
+
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "g10lib.h"
#include "cipher.h"
+/* We really need a 64 bit type for this code. */
#ifdef HAVE_U64_TYPEDEF
-/* we really need it here, but as this is only experiment we
- * can live without Tiger */
-
-typedef struct {
- u64 a, b, c;
- byte buf[64];
- int count;
- u32 nblocks;
+typedef struct
+{
+ u64 a, b, c;
+ byte buf[64];
+ int count;
+ u32 nblocks;
+ int variant; /* 0 = old code, 1 = fixed code, 2 - TIGER2. */
} TIGER_CONTEXT;
/*********************************
* Okay, okay, this is not the fastest code - improvements are welcome.
*
*/
/* Some test vectors:
* "" 24F0130C63AC9332 16166E76B1BB925F F373DE2D49584E7A
* "abc" F258C1E88414AB2A 527AB541FFC5B8BF 935F7B951C132951
* "Tiger" 9F00F599072300DD 276ABB38C8EB6DEC 37790C116F9D2BDF
* "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+-"
* 87FB2A9083851CF7 470D2CF810E6DF9E B586445034A5A386
* "ABCDEFGHIJKLMNOPQRSTUVWXYZ=abcdefghijklmnopqrstuvwxyz+0123456789"
* 467DB80863EBCE48 8DF1CD1261655DE9 57896565975F9197
* "Tiger - A Fast New Hash Function, by Ross Anderson and Eli Biham"
* 0C410A042968868A 1671DA5A3FD29A72 5EC1E457D3CDB303
* "Tiger - A Fast New Hash Function, by Ross Anderson and Eli Biham, proc"
* "eedings of Fast Software Encryption 3, Cambridge."
* EBF591D5AFA655CE 7F22894FF87F54AC 89C811B6B0DA3193
* "Tiger - A Fast New Hash Function, by Ross Anderson and Eli Biham, proc"
* "eedings of Fast Software Encryption 3, Cambridge, 1996."
* 3D9AEB03D1BD1A63 57B2774DFD6D5B24 DD68151D503974FC
* "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+-ABCDEF"
* "GHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+-"
* 00B83EB4E53440C5 76AC6AAEE0A74858 25FD15E70A59FFE4
*/
static u64 sbox1[256] = {
U64_C(0x02aab17cf7e90c5e) /* 0 */, U64_C(0xac424b03e243a8ec) /* 1 */,
U64_C(0x72cd5be30dd5fcd3) /* 2 */, U64_C(0x6d019b93f6f97f3a) /* 3 */,
U64_C(0xcd9978ffd21f9193) /* 4 */, U64_C(0x7573a1c9708029e2) /* 5 */,
U64_C(0xb164326b922a83c3) /* 6 */, U64_C(0x46883eee04915870) /* 7 */,
U64_C(0xeaace3057103ece6) /* 8 */, U64_C(0xc54169b808a3535c) /* 9 */,
U64_C(0x4ce754918ddec47c) /* 10 */, U64_C(0x0aa2f4dfdc0df40c) /* 11 */,
U64_C(0x10b76f18a74dbefa) /* 12 */, U64_C(0xc6ccb6235ad1ab6a) /* 13 */,
U64_C(0x13726121572fe2ff) /* 14 */, U64_C(0x1a488c6f199d921e) /* 15 */,
U64_C(0x4bc9f9f4da0007ca) /* 16 */, U64_C(0x26f5e6f6e85241c7) /* 17 */,
U64_C(0x859079dbea5947b6) /* 18 */, U64_C(0x4f1885c5c99e8c92) /* 19 */,
U64_C(0xd78e761ea96f864b) /* 20 */, U64_C(0x8e36428c52b5c17d) /* 21 */,
U64_C(0x69cf6827373063c1) /* 22 */, U64_C(0xb607c93d9bb4c56e) /* 23 */,
U64_C(0x7d820e760e76b5ea) /* 24 */, U64_C(0x645c9cc6f07fdc42) /* 25 */,
U64_C(0xbf38a078243342e0) /* 26 */, U64_C(0x5f6b343c9d2e7d04) /* 27 */,
U64_C(0xf2c28aeb600b0ec6) /* 28 */, U64_C(0x6c0ed85f7254bcac) /* 29 */,
U64_C(0x71592281a4db4fe5) /* 30 */, U64_C(0x1967fa69ce0fed9f) /* 31 */,
U64_C(0xfd5293f8b96545db) /* 32 */, U64_C(0xc879e9d7f2a7600b) /* 33 */,
U64_C(0x860248920193194e) /* 34 */, U64_C(0xa4f9533b2d9cc0b3) /* 35 */,
U64_C(0x9053836c15957613) /* 36 */, U64_C(0xdb6dcf8afc357bf1) /* 37 */,
U64_C(0x18beea7a7a370f57) /* 38 */, U64_C(0x037117ca50b99066) /* 39 */,
U64_C(0x6ab30a9774424a35) /* 40 */, U64_C(0xf4e92f02e325249b) /* 41 */,
U64_C(0x7739db07061ccae1) /* 42 */, U64_C(0xd8f3b49ceca42a05) /* 43 */,
U64_C(0xbd56be3f51382f73) /* 44 */, U64_C(0x45faed5843b0bb28) /* 45 */,
U64_C(0x1c813d5c11bf1f83) /* 46 */, U64_C(0x8af0e4b6d75fa169) /* 47 */,
U64_C(0x33ee18a487ad9999) /* 48 */, U64_C(0x3c26e8eab1c94410) /* 49 */,
U64_C(0xb510102bc0a822f9) /* 50 */, U64_C(0x141eef310ce6123b) /* 51 */,
U64_C(0xfc65b90059ddb154) /* 52 */, U64_C(0xe0158640c5e0e607) /* 53 */,
U64_C(0x884e079826c3a3cf) /* 54 */, U64_C(0x930d0d9523c535fd) /* 55 */,
U64_C(0x35638d754e9a2b00) /* 56 */, U64_C(0x4085fccf40469dd5) /* 57 */,
U64_C(0xc4b17ad28be23a4c) /* 58 */, U64_C(0xcab2f0fc6a3e6a2e) /* 59 */,
U64_C(0x2860971a6b943fcd) /* 60 */, U64_C(0x3dde6ee212e30446) /* 61 */,
U64_C(0x6222f32ae01765ae) /* 62 */, U64_C(0x5d550bb5478308fe) /* 63 */,
U64_C(0xa9efa98da0eda22a) /* 64 */, U64_C(0xc351a71686c40da7) /* 65 */,
U64_C(0x1105586d9c867c84) /* 66 */, U64_C(0xdcffee85fda22853) /* 67 */,
U64_C(0xccfbd0262c5eef76) /* 68 */, U64_C(0xbaf294cb8990d201) /* 69 */,
U64_C(0xe69464f52afad975) /* 70 */, U64_C(0x94b013afdf133e14) /* 71 */,
U64_C(0x06a7d1a32823c958) /* 72 */, U64_C(0x6f95fe5130f61119) /* 73 */,
U64_C(0xd92ab34e462c06c0) /* 74 */, U64_C(0xed7bde33887c71d2) /* 75 */,
U64_C(0x79746d6e6518393e) /* 76 */, U64_C(0x5ba419385d713329) /* 77 */,
U64_C(0x7c1ba6b948a97564) /* 78 */, U64_C(0x31987c197bfdac67) /* 79 */,
U64_C(0xde6c23c44b053d02) /* 80 */, U64_C(0x581c49fed002d64d) /* 81 */,
U64_C(0xdd474d6338261571) /* 82 */, U64_C(0xaa4546c3e473d062) /* 83 */,
U64_C(0x928fce349455f860) /* 84 */, U64_C(0x48161bbacaab94d9) /* 85 */,
U64_C(0x63912430770e6f68) /* 86 */, U64_C(0x6ec8a5e602c6641c) /* 87 */,
U64_C(0x87282515337ddd2b) /* 88 */, U64_C(0x2cda6b42034b701b) /* 89 */,
U64_C(0xb03d37c181cb096d) /* 90 */, U64_C(0xe108438266c71c6f) /* 91 */,
U64_C(0x2b3180c7eb51b255) /* 92 */, U64_C(0xdf92b82f96c08bbc) /* 93 */,
U64_C(0x5c68c8c0a632f3ba) /* 94 */, U64_C(0x5504cc861c3d0556) /* 95 */,
U64_C(0xabbfa4e55fb26b8f) /* 96 */, U64_C(0x41848b0ab3baceb4) /* 97 */,
U64_C(0xb334a273aa445d32) /* 98 */, U64_C(0xbca696f0a85ad881) /* 99 */,
U64_C(0x24f6ec65b528d56c) /* 100 */, U64_C(0x0ce1512e90f4524a) /* 101 */,
U64_C(0x4e9dd79d5506d35a) /* 102 */, U64_C(0x258905fac6ce9779) /* 103 */,
U64_C(0x2019295b3e109b33) /* 104 */, U64_C(0xf8a9478b73a054cc) /* 105 */,
U64_C(0x2924f2f934417eb0) /* 106 */, U64_C(0x3993357d536d1bc4) /* 107 */,
U64_C(0x38a81ac21db6ff8b) /* 108 */, U64_C(0x47c4fbf17d6016bf) /* 109 */,
U64_C(0x1e0faadd7667e3f5) /* 110 */, U64_C(0x7abcff62938beb96) /* 111 */,
U64_C(0xa78dad948fc179c9) /* 112 */, U64_C(0x8f1f98b72911e50d) /* 113 */,
U64_C(0x61e48eae27121a91) /* 114 */, U64_C(0x4d62f7ad31859808) /* 115 */,
U64_C(0xeceba345ef5ceaeb) /* 116 */, U64_C(0xf5ceb25ebc9684ce) /* 117 */,
U64_C(0xf633e20cb7f76221) /* 118 */, U64_C(0xa32cdf06ab8293e4) /* 119 */,
U64_C(0x985a202ca5ee2ca4) /* 120 */, U64_C(0xcf0b8447cc8a8fb1) /* 121 */,
U64_C(0x9f765244979859a3) /* 122 */, U64_C(0xa8d516b1a1240017) /* 123 */,
U64_C(0x0bd7ba3ebb5dc726) /* 124 */, U64_C(0xe54bca55b86adb39) /* 125 */,
U64_C(0x1d7a3afd6c478063) /* 126 */, U64_C(0x519ec608e7669edd) /* 127 */,
U64_C(0x0e5715a2d149aa23) /* 128 */, U64_C(0x177d4571848ff194) /* 129 */,
U64_C(0xeeb55f3241014c22) /* 130 */, U64_C(0x0f5e5ca13a6e2ec2) /* 131 */,
U64_C(0x8029927b75f5c361) /* 132 */, U64_C(0xad139fabc3d6e436) /* 133 */,
U64_C(0x0d5df1a94ccf402f) /* 134 */, U64_C(0x3e8bd948bea5dfc8) /* 135 */,
U64_C(0xa5a0d357bd3ff77e) /* 136 */, U64_C(0xa2d12e251f74f645) /* 137 */,
U64_C(0x66fd9e525e81a082) /* 138 */, U64_C(0x2e0c90ce7f687a49) /* 139 */,
U64_C(0xc2e8bcbeba973bc5) /* 140 */, U64_C(0x000001bce509745f) /* 141 */,
U64_C(0x423777bbe6dab3d6) /* 142 */, U64_C(0xd1661c7eaef06eb5) /* 143 */,
U64_C(0xa1781f354daacfd8) /* 144 */, U64_C(0x2d11284a2b16affc) /* 145 */,
U64_C(0xf1fc4f67fa891d1f) /* 146 */, U64_C(0x73ecc25dcb920ada) /* 147 */,
U64_C(0xae610c22c2a12651) /* 148 */, U64_C(0x96e0a810d356b78a) /* 149 */,
U64_C(0x5a9a381f2fe7870f) /* 150 */, U64_C(0xd5ad62ede94e5530) /* 151 */,
U64_C(0xd225e5e8368d1427) /* 152 */, U64_C(0x65977b70c7af4631) /* 153 */,
U64_C(0x99f889b2de39d74f) /* 154 */, U64_C(0x233f30bf54e1d143) /* 155 */,
U64_C(0x9a9675d3d9a63c97) /* 156 */, U64_C(0x5470554ff334f9a8) /* 157 */,
U64_C(0x166acb744a4f5688) /* 158 */, U64_C(0x70c74caab2e4aead) /* 159 */,
U64_C(0xf0d091646f294d12) /* 160 */, U64_C(0x57b82a89684031d1) /* 161 */,
U64_C(0xefd95a5a61be0b6b) /* 162 */, U64_C(0x2fbd12e969f2f29a) /* 163 */,
U64_C(0x9bd37013feff9fe8) /* 164 */, U64_C(0x3f9b0404d6085a06) /* 165 */,
U64_C(0x4940c1f3166cfe15) /* 166 */, U64_C(0x09542c4dcdf3defb) /* 167 */,
U64_C(0xb4c5218385cd5ce3) /* 168 */, U64_C(0xc935b7dc4462a641) /* 169 */,
U64_C(0x3417f8a68ed3b63f) /* 170 */, U64_C(0xb80959295b215b40) /* 171 */,
U64_C(0xf99cdaef3b8c8572) /* 172 */, U64_C(0x018c0614f8fcb95d) /* 173 */,
U64_C(0x1b14accd1a3acdf3) /* 174 */, U64_C(0x84d471f200bb732d) /* 175 */,
U64_C(0xc1a3110e95e8da16) /* 176 */, U64_C(0x430a7220bf1a82b8) /* 177 */,
U64_C(0xb77e090d39df210e) /* 178 */, U64_C(0x5ef4bd9f3cd05e9d) /* 179 */,
U64_C(0x9d4ff6da7e57a444) /* 180 */, U64_C(0xda1d60e183d4a5f8) /* 181 */,
U64_C(0xb287c38417998e47) /* 182 */, U64_C(0xfe3edc121bb31886) /* 183 */,
U64_C(0xc7fe3ccc980ccbef) /* 184 */, U64_C(0xe46fb590189bfd03) /* 185 */,
U64_C(0x3732fd469a4c57dc) /* 186 */, U64_C(0x7ef700a07cf1ad65) /* 187 */,
U64_C(0x59c64468a31d8859) /* 188 */, U64_C(0x762fb0b4d45b61f6) /* 189 */,
U64_C(0x155baed099047718) /* 190 */, U64_C(0x68755e4c3d50baa6) /* 191 */,
U64_C(0xe9214e7f22d8b4df) /* 192 */, U64_C(0x2addbf532eac95f4) /* 193 */,
U64_C(0x32ae3909b4bd0109) /* 194 */, U64_C(0x834df537b08e3450) /* 195 */,
U64_C(0xfa209da84220728d) /* 196 */, U64_C(0x9e691d9b9efe23f7) /* 197 */,
U64_C(0x0446d288c4ae8d7f) /* 198 */, U64_C(0x7b4cc524e169785b) /* 199 */,
U64_C(0x21d87f0135ca1385) /* 200 */, U64_C(0xcebb400f137b8aa5) /* 201 */,
U64_C(0x272e2b66580796be) /* 202 */, U64_C(0x3612264125c2b0de) /* 203 */,
U64_C(0x057702bdad1efbb2) /* 204 */, U64_C(0xd4babb8eacf84be9) /* 205 */,
U64_C(0x91583139641bc67b) /* 206 */, U64_C(0x8bdc2de08036e024) /* 207 */,
U64_C(0x603c8156f49f68ed) /* 208 */, U64_C(0xf7d236f7dbef5111) /* 209 */,
U64_C(0x9727c4598ad21e80) /* 210 */, U64_C(0xa08a0896670a5fd7) /* 211 */,
U64_C(0xcb4a8f4309eba9cb) /* 212 */, U64_C(0x81af564b0f7036a1) /* 213 */,
U64_C(0xc0b99aa778199abd) /* 214 */, U64_C(0x959f1ec83fc8e952) /* 215 */,
U64_C(0x8c505077794a81b9) /* 216 */, U64_C(0x3acaaf8f056338f0) /* 217 */,
U64_C(0x07b43f50627a6778) /* 218 */, U64_C(0x4a44ab49f5eccc77) /* 219 */,
U64_C(0x3bc3d6e4b679ee98) /* 220 */, U64_C(0x9cc0d4d1cf14108c) /* 221 */,
U64_C(0x4406c00b206bc8a0) /* 222 */, U64_C(0x82a18854c8d72d89) /* 223 */,
U64_C(0x67e366b35c3c432c) /* 224 */, U64_C(0xb923dd61102b37f2) /* 225 */,
U64_C(0x56ab2779d884271d) /* 226 */, U64_C(0xbe83e1b0ff1525af) /* 227 */,
U64_C(0xfb7c65d4217e49a9) /* 228 */, U64_C(0x6bdbe0e76d48e7d4) /* 229 */,
U64_C(0x08df828745d9179e) /* 230 */, U64_C(0x22ea6a9add53bd34) /* 231 */,
U64_C(0xe36e141c5622200a) /* 232 */, U64_C(0x7f805d1b8cb750ee) /* 233 */,
U64_C(0xafe5c7a59f58e837) /* 234 */, U64_C(0xe27f996a4fb1c23c) /* 235 */,
U64_C(0xd3867dfb0775f0d0) /* 236 */, U64_C(0xd0e673de6e88891a) /* 237 */,
U64_C(0x123aeb9eafb86c25) /* 238 */, U64_C(0x30f1d5d5c145b895) /* 239 */,
U64_C(0xbb434a2dee7269e7) /* 240 */, U64_C(0x78cb67ecf931fa38) /* 241 */,
U64_C(0xf33b0372323bbf9c) /* 242 */, U64_C(0x52d66336fb279c74) /* 243 */,
U64_C(0x505f33ac0afb4eaa) /* 244 */, U64_C(0xe8a5cd99a2cce187) /* 245 */,
U64_C(0x534974801e2d30bb) /* 246 */, U64_C(0x8d2d5711d5876d90) /* 247 */,
U64_C(0x1f1a412891bc038e) /* 248 */, U64_C(0xd6e2e71d82e56648) /* 249 */,
U64_C(0x74036c3a497732b7) /* 250 */, U64_C(0x89b67ed96361f5ab) /* 251 */,
U64_C(0xffed95d8f1ea02a2) /* 252 */, U64_C(0xe72b3bd61464d43d) /* 253 */,
U64_C(0xa6300f170bdc4820) /* 254 */, U64_C(0xebc18760ed78a77a) /* 255 */
};
static u64 sbox2[256] = {
U64_C(0xe6a6be5a05a12138) /* 256 */, U64_C(0xb5a122a5b4f87c98) /* 257 */,
U64_C(0x563c6089140b6990) /* 258 */, U64_C(0x4c46cb2e391f5dd5) /* 259 */,
U64_C(0xd932addbc9b79434) /* 260 */, U64_C(0x08ea70e42015aff5) /* 261 */,
U64_C(0xd765a6673e478cf1) /* 262 */, U64_C(0xc4fb757eab278d99) /* 263 */,
U64_C(0xdf11c6862d6e0692) /* 264 */, U64_C(0xddeb84f10d7f3b16) /* 265 */,
U64_C(0x6f2ef604a665ea04) /* 266 */, U64_C(0x4a8e0f0ff0e0dfb3) /* 267 */,
U64_C(0xa5edeef83dbcba51) /* 268 */, U64_C(0xfc4f0a2a0ea4371e) /* 269 */,
U64_C(0xe83e1da85cb38429) /* 270 */, U64_C(0xdc8ff882ba1b1ce2) /* 271 */,
U64_C(0xcd45505e8353e80d) /* 272 */, U64_C(0x18d19a00d4db0717) /* 273 */,
U64_C(0x34a0cfeda5f38101) /* 274 */, U64_C(0x0be77e518887caf2) /* 275 */,
U64_C(0x1e341438b3c45136) /* 276 */, U64_C(0xe05797f49089ccf9) /* 277 */,
U64_C(0xffd23f9df2591d14) /* 278 */, U64_C(0x543dda228595c5cd) /* 279 */,
U64_C(0x661f81fd99052a33) /* 280 */, U64_C(0x8736e641db0f7b76) /* 281 */,
U64_C(0x15227725418e5307) /* 282 */, U64_C(0xe25f7f46162eb2fa) /* 283 */,
U64_C(0x48a8b2126c13d9fe) /* 284 */, U64_C(0xafdc541792e76eea) /* 285 */,
U64_C(0x03d912bfc6d1898f) /* 286 */, U64_C(0x31b1aafa1b83f51b) /* 287 */,
U64_C(0xf1ac2796e42ab7d9) /* 288 */, U64_C(0x40a3a7d7fcd2ebac) /* 289 */,
U64_C(0x1056136d0afbbcc5) /* 290 */, U64_C(0x7889e1dd9a6d0c85) /* 291 */,
U64_C(0xd33525782a7974aa) /* 292 */, U64_C(0xa7e25d09078ac09b) /* 293 */,
U64_C(0xbd4138b3eac6edd0) /* 294 */, U64_C(0x920abfbe71eb9e70) /* 295 */,
U64_C(0xa2a5d0f54fc2625c) /* 296 */, U64_C(0xc054e36b0b1290a3) /* 297 */,
U64_C(0xf6dd59ff62fe932b) /* 298 */, U64_C(0x3537354511a8ac7d) /* 299 */,
U64_C(0xca845e9172fadcd4) /* 300 */, U64_C(0x84f82b60329d20dc) /* 301 */,
U64_C(0x79c62ce1cd672f18) /* 302 */, U64_C(0x8b09a2add124642c) /* 303 */,
U64_C(0xd0c1e96a19d9e726) /* 304 */, U64_C(0x5a786a9b4ba9500c) /* 305 */,
U64_C(0x0e020336634c43f3) /* 306 */, U64_C(0xc17b474aeb66d822) /* 307 */,
U64_C(0x6a731ae3ec9baac2) /* 308 */, U64_C(0x8226667ae0840258) /* 309 */,
U64_C(0x67d4567691caeca5) /* 310 */, U64_C(0x1d94155c4875adb5) /* 311 */,
U64_C(0x6d00fd985b813fdf) /* 312 */, U64_C(0x51286efcb774cd06) /* 313 */,
U64_C(0x5e8834471fa744af) /* 314 */, U64_C(0xf72ca0aee761ae2e) /* 315 */,
U64_C(0xbe40e4cdaee8e09a) /* 316 */, U64_C(0xe9970bbb5118f665) /* 317 */,
U64_C(0x726e4beb33df1964) /* 318 */, U64_C(0x703b000729199762) /* 319 */,
U64_C(0x4631d816f5ef30a7) /* 320 */, U64_C(0xb880b5b51504a6be) /* 321 */,
U64_C(0x641793c37ed84b6c) /* 322 */, U64_C(0x7b21ed77f6e97d96) /* 323 */,
U64_C(0x776306312ef96b73) /* 324 */, U64_C(0xae528948e86ff3f4) /* 325 */,
U64_C(0x53dbd7f286a3f8f8) /* 326 */, U64_C(0x16cadce74cfc1063) /* 327 */,
U64_C(0x005c19bdfa52c6dd) /* 328 */, U64_C(0x68868f5d64d46ad3) /* 329 */,
U64_C(0x3a9d512ccf1e186a) /* 330 */, U64_C(0x367e62c2385660ae) /* 331 */,
U64_C(0xe359e7ea77dcb1d7) /* 332 */, U64_C(0x526c0773749abe6e) /* 333 */,
U64_C(0x735ae5f9d09f734b) /* 334 */, U64_C(0x493fc7cc8a558ba8) /* 335 */,
U64_C(0xb0b9c1533041ab45) /* 336 */, U64_C(0x321958ba470a59bd) /* 337 */,
U64_C(0x852db00b5f46c393) /* 338 */, U64_C(0x91209b2bd336b0e5) /* 339 */,
U64_C(0x6e604f7d659ef19f) /* 340 */, U64_C(0xb99a8ae2782ccb24) /* 341 */,
U64_C(0xccf52ab6c814c4c7) /* 342 */, U64_C(0x4727d9afbe11727b) /* 343 */,
U64_C(0x7e950d0c0121b34d) /* 344 */, U64_C(0x756f435670ad471f) /* 345 */,
U64_C(0xf5add442615a6849) /* 346 */, U64_C(0x4e87e09980b9957a) /* 347 */,
U64_C(0x2acfa1df50aee355) /* 348 */, U64_C(0xd898263afd2fd556) /* 349 */,
U64_C(0xc8f4924dd80c8fd6) /* 350 */, U64_C(0xcf99ca3d754a173a) /* 351 */,
U64_C(0xfe477bacaf91bf3c) /* 352 */, U64_C(0xed5371f6d690c12d) /* 353 */,
U64_C(0x831a5c285e687094) /* 354 */, U64_C(0xc5d3c90a3708a0a4) /* 355 */,
U64_C(0x0f7f903717d06580) /* 356 */, U64_C(0x19f9bb13b8fdf27f) /* 357 */,
U64_C(0xb1bd6f1b4d502843) /* 358 */, U64_C(0x1c761ba38fff4012) /* 359 */,
U64_C(0x0d1530c4e2e21f3b) /* 360 */, U64_C(0x8943ce69a7372c8a) /* 361 */,
U64_C(0xe5184e11feb5ce66) /* 362 */, U64_C(0x618bdb80bd736621) /* 363 */,
U64_C(0x7d29bad68b574d0b) /* 364 */, U64_C(0x81bb613e25e6fe5b) /* 365 */,
U64_C(0x071c9c10bc07913f) /* 366 */, U64_C(0xc7beeb7909ac2d97) /* 367 */,
U64_C(0xc3e58d353bc5d757) /* 368 */, U64_C(0xeb017892f38f61e8) /* 369 */,
U64_C(0xd4effb9c9b1cc21a) /* 370 */, U64_C(0x99727d26f494f7ab) /* 371 */,
U64_C(0xa3e063a2956b3e03) /* 372 */, U64_C(0x9d4a8b9a4aa09c30) /* 373 */,
U64_C(0x3f6ab7d500090fb4) /* 374 */, U64_C(0x9cc0f2a057268ac0) /* 375 */,
U64_C(0x3dee9d2dedbf42d1) /* 376 */, U64_C(0x330f49c87960a972) /* 377 */,
U64_C(0xc6b2720287421b41) /* 378 */, U64_C(0x0ac59ec07c00369c) /* 379 */,
U64_C(0xef4eac49cb353425) /* 380 */, U64_C(0xf450244eef0129d8) /* 381 */,
U64_C(0x8acc46e5caf4deb6) /* 382 */, U64_C(0x2ffeab63989263f7) /* 383 */,
U64_C(0x8f7cb9fe5d7a4578) /* 384 */, U64_C(0x5bd8f7644e634635) /* 385 */,
U64_C(0x427a7315bf2dc900) /* 386 */, U64_C(0x17d0c4aa2125261c) /* 387 */,
U64_C(0x3992486c93518e50) /* 388 */, U64_C(0xb4cbfee0a2d7d4c3) /* 389 */,
U64_C(0x7c75d6202c5ddd8d) /* 390 */, U64_C(0xdbc295d8e35b6c61) /* 391 */,
U64_C(0x60b369d302032b19) /* 392 */, U64_C(0xce42685fdce44132) /* 393 */,
U64_C(0x06f3ddb9ddf65610) /* 394 */, U64_C(0x8ea4d21db5e148f0) /* 395 */,
U64_C(0x20b0fce62fcd496f) /* 396 */, U64_C(0x2c1b912358b0ee31) /* 397 */,
U64_C(0xb28317b818f5a308) /* 398 */, U64_C(0xa89c1e189ca6d2cf) /* 399 */,
U64_C(0x0c6b18576aaadbc8) /* 400 */, U64_C(0xb65deaa91299fae3) /* 401 */,
U64_C(0xfb2b794b7f1027e7) /* 402 */, U64_C(0x04e4317f443b5beb) /* 403 */,
U64_C(0x4b852d325939d0a6) /* 404 */, U64_C(0xd5ae6beefb207ffc) /* 405 */,
U64_C(0x309682b281c7d374) /* 406 */, U64_C(0xbae309a194c3b475) /* 407 */,
U64_C(0x8cc3f97b13b49f05) /* 408 */, U64_C(0x98a9422ff8293967) /* 409 */,
U64_C(0x244b16b01076ff7c) /* 410 */, U64_C(0xf8bf571c663d67ee) /* 411 */,
U64_C(0x1f0d6758eee30da1) /* 412 */, U64_C(0xc9b611d97adeb9b7) /* 413 */,
U64_C(0xb7afd5887b6c57a2) /* 414 */, U64_C(0x6290ae846b984fe1) /* 415 */,
U64_C(0x94df4cdeacc1a5fd) /* 416 */, U64_C(0x058a5bd1c5483aff) /* 417 */,
U64_C(0x63166cc142ba3c37) /* 418 */, U64_C(0x8db8526eb2f76f40) /* 419 */,
U64_C(0xe10880036f0d6d4e) /* 420 */, U64_C(0x9e0523c9971d311d) /* 421 */,
U64_C(0x45ec2824cc7cd691) /* 422 */, U64_C(0x575b8359e62382c9) /* 423 */,
U64_C(0xfa9e400dc4889995) /* 424 */, U64_C(0xd1823ecb45721568) /* 425 */,
U64_C(0xdafd983b8206082f) /* 426 */, U64_C(0xaa7d29082386a8cb) /* 427 */,
U64_C(0x269fcd4403b87588) /* 428 */, U64_C(0x1b91f5f728bdd1e0) /* 429 */,
U64_C(0xe4669f39040201f6) /* 430 */, U64_C(0x7a1d7c218cf04ade) /* 431 */,
U64_C(0x65623c29d79ce5ce) /* 432 */, U64_C(0x2368449096c00bb1) /* 433 */,
U64_C(0xab9bf1879da503ba) /* 434 */, U64_C(0xbc23ecb1a458058e) /* 435 */,
U64_C(0x9a58df01bb401ecc) /* 436 */, U64_C(0xa070e868a85f143d) /* 437 */,
U64_C(0x4ff188307df2239e) /* 438 */, U64_C(0x14d565b41a641183) /* 439 */,
U64_C(0xee13337452701602) /* 440 */, U64_C(0x950e3dcf3f285e09) /* 441 */,
U64_C(0x59930254b9c80953) /* 442 */, U64_C(0x3bf299408930da6d) /* 443 */,
U64_C(0xa955943f53691387) /* 444 */, U64_C(0xa15edecaa9cb8784) /* 445 */,
U64_C(0x29142127352be9a0) /* 446 */, U64_C(0x76f0371fff4e7afb) /* 447 */,
U64_C(0x0239f450274f2228) /* 448 */, U64_C(0xbb073af01d5e868b) /* 449 */,
U64_C(0xbfc80571c10e96c1) /* 450 */, U64_C(0xd267088568222e23) /* 451 */,
U64_C(0x9671a3d48e80b5b0) /* 452 */, U64_C(0x55b5d38ae193bb81) /* 453 */,
U64_C(0x693ae2d0a18b04b8) /* 454 */, U64_C(0x5c48b4ecadd5335f) /* 455 */,
U64_C(0xfd743b194916a1ca) /* 456 */, U64_C(0x2577018134be98c4) /* 457 */,
U64_C(0xe77987e83c54a4ad) /* 458 */, U64_C(0x28e11014da33e1b9) /* 459 */,
U64_C(0x270cc59e226aa213) /* 460 */, U64_C(0x71495f756d1a5f60) /* 461 */,
U64_C(0x9be853fb60afef77) /* 462 */, U64_C(0xadc786a7f7443dbf) /* 463 */,
U64_C(0x0904456173b29a82) /* 464 */, U64_C(0x58bc7a66c232bd5e) /* 465 */,
U64_C(0xf306558c673ac8b2) /* 466 */, U64_C(0x41f639c6b6c9772a) /* 467 */,
U64_C(0x216defe99fda35da) /* 468 */, U64_C(0x11640cc71c7be615) /* 469 */,
U64_C(0x93c43694565c5527) /* 470 */, U64_C(0xea038e6246777839) /* 471 */,
U64_C(0xf9abf3ce5a3e2469) /* 472 */, U64_C(0x741e768d0fd312d2) /* 473 */,
U64_C(0x0144b883ced652c6) /* 474 */, U64_C(0xc20b5a5ba33f8552) /* 475 */,
U64_C(0x1ae69633c3435a9d) /* 476 */, U64_C(0x97a28ca4088cfdec) /* 477 */,
U64_C(0x8824a43c1e96f420) /* 478 */, U64_C(0x37612fa66eeea746) /* 479 */,
U64_C(0x6b4cb165f9cf0e5a) /* 480 */, U64_C(0x43aa1c06a0abfb4a) /* 481 */,
U64_C(0x7f4dc26ff162796b) /* 482 */, U64_C(0x6cbacc8e54ed9b0f) /* 483 */,
U64_C(0xa6b7ffefd2bb253e) /* 484 */, U64_C(0x2e25bc95b0a29d4f) /* 485 */,
U64_C(0x86d6a58bdef1388c) /* 486 */, U64_C(0xded74ac576b6f054) /* 487 */,
U64_C(0x8030bdbc2b45805d) /* 488 */, U64_C(0x3c81af70e94d9289) /* 489 */,
U64_C(0x3eff6dda9e3100db) /* 490 */, U64_C(0xb38dc39fdfcc8847) /* 491 */,
U64_C(0x123885528d17b87e) /* 492 */, U64_C(0xf2da0ed240b1b642) /* 493 */,
U64_C(0x44cefadcd54bf9a9) /* 494 */, U64_C(0x1312200e433c7ee6) /* 495 */,
U64_C(0x9ffcc84f3a78c748) /* 496 */, U64_C(0xf0cd1f72248576bb) /* 497 */,
U64_C(0xec6974053638cfe4) /* 498 */, U64_C(0x2ba7b67c0cec4e4c) /* 499 */,
U64_C(0xac2f4df3e5ce32ed) /* 500 */, U64_C(0xcb33d14326ea4c11) /* 501 */,
U64_C(0xa4e9044cc77e58bc) /* 502 */, U64_C(0x5f513293d934fcef) /* 503 */,
U64_C(0x5dc9645506e55444) /* 504 */, U64_C(0x50de418f317de40a) /* 505 */,
U64_C(0x388cb31a69dde259) /* 506 */, U64_C(0x2db4a83455820a86) /* 507 */,
U64_C(0x9010a91e84711ae9) /* 508 */, U64_C(0x4df7f0b7b1498371) /* 509 */,
U64_C(0xd62a2eabc0977179) /* 510 */, U64_C(0x22fac097aa8d5c0e) /* 511 */
};
static u64 sbox3[256] = {
U64_C(0xf49fcc2ff1daf39b) /* 512 */, U64_C(0x487fd5c66ff29281) /* 513 */,
U64_C(0xe8a30667fcdca83f) /* 514 */, U64_C(0x2c9b4be3d2fcce63) /* 515 */,
U64_C(0xda3ff74b93fbbbc2) /* 516 */, U64_C(0x2fa165d2fe70ba66) /* 517 */,
U64_C(0xa103e279970e93d4) /* 518 */, U64_C(0xbecdec77b0e45e71) /* 519 */,
U64_C(0xcfb41e723985e497) /* 520 */, U64_C(0xb70aaa025ef75017) /* 521 */,
U64_C(0xd42309f03840b8e0) /* 522 */, U64_C(0x8efc1ad035898579) /* 523 */,
U64_C(0x96c6920be2b2abc5) /* 524 */, U64_C(0x66af4163375a9172) /* 525 */,
U64_C(0x2174abdcca7127fb) /* 526 */, U64_C(0xb33ccea64a72ff41) /* 527 */,
U64_C(0xf04a4933083066a5) /* 528 */, U64_C(0x8d970acdd7289af5) /* 529 */,
U64_C(0x8f96e8e031c8c25e) /* 530 */, U64_C(0xf3fec02276875d47) /* 531 */,
U64_C(0xec7bf310056190dd) /* 532 */, U64_C(0xf5adb0aebb0f1491) /* 533 */,
U64_C(0x9b50f8850fd58892) /* 534 */, U64_C(0x4975488358b74de8) /* 535 */,
U64_C(0xa3354ff691531c61) /* 536 */, U64_C(0x0702bbe481d2c6ee) /* 537 */,
U64_C(0x89fb24057deded98) /* 538 */, U64_C(0xac3075138596e902) /* 539 */,
U64_C(0x1d2d3580172772ed) /* 540 */, U64_C(0xeb738fc28e6bc30d) /* 541 */,
U64_C(0x5854ef8f63044326) /* 542 */, U64_C(0x9e5c52325add3bbe) /* 543 */,
U64_C(0x90aa53cf325c4623) /* 544 */, U64_C(0xc1d24d51349dd067) /* 545 */,
U64_C(0x2051cfeea69ea624) /* 546 */, U64_C(0x13220f0a862e7e4f) /* 547 */,
U64_C(0xce39399404e04864) /* 548 */, U64_C(0xd9c42ca47086fcb7) /* 549 */,
U64_C(0x685ad2238a03e7cc) /* 550 */, U64_C(0x066484b2ab2ff1db) /* 551 */,
U64_C(0xfe9d5d70efbf79ec) /* 552 */, U64_C(0x5b13b9dd9c481854) /* 553 */,
U64_C(0x15f0d475ed1509ad) /* 554 */, U64_C(0x0bebcd060ec79851) /* 555 */,
U64_C(0xd58c6791183ab7f8) /* 556 */, U64_C(0xd1187c5052f3eee4) /* 557 */,
U64_C(0xc95d1192e54e82ff) /* 558 */, U64_C(0x86eea14cb9ac6ca2) /* 559 */,
U64_C(0x3485beb153677d5d) /* 560 */, U64_C(0xdd191d781f8c492a) /* 561 */,
U64_C(0xf60866baa784ebf9) /* 562 */, U64_C(0x518f643ba2d08c74) /* 563 */,
U64_C(0x8852e956e1087c22) /* 564 */, U64_C(0xa768cb8dc410ae8d) /* 565 */,
U64_C(0x38047726bfec8e1a) /* 566 */, U64_C(0xa67738b4cd3b45aa) /* 567 */,
U64_C(0xad16691cec0dde19) /* 568 */, U64_C(0xc6d4319380462e07) /* 569 */,
U64_C(0xc5a5876d0ba61938) /* 570 */, U64_C(0x16b9fa1fa58fd840) /* 571 */,
U64_C(0x188ab1173ca74f18) /* 572 */, U64_C(0xabda2f98c99c021f) /* 573 */,
U64_C(0x3e0580ab134ae816) /* 574 */, U64_C(0x5f3b05b773645abb) /* 575 */,
U64_C(0x2501a2be5575f2f6) /* 576 */, U64_C(0x1b2f74004e7e8ba9) /* 577 */,
U64_C(0x1cd7580371e8d953) /* 578 */, U64_C(0x7f6ed89562764e30) /* 579 */,
U64_C(0xb15926ff596f003d) /* 580 */, U64_C(0x9f65293da8c5d6b9) /* 581 */,
U64_C(0x6ecef04dd690f84c) /* 582 */, U64_C(0x4782275fff33af88) /* 583 */,
U64_C(0xe41433083f820801) /* 584 */, U64_C(0xfd0dfe409a1af9b5) /* 585 */,
U64_C(0x4325a3342cdb396b) /* 586 */, U64_C(0x8ae77e62b301b252) /* 587 */,
U64_C(0xc36f9e9f6655615a) /* 588 */, U64_C(0x85455a2d92d32c09) /* 589 */,
U64_C(0xf2c7dea949477485) /* 590 */, U64_C(0x63cfb4c133a39eba) /* 591 */,
U64_C(0x83b040cc6ebc5462) /* 592 */, U64_C(0x3b9454c8fdb326b0) /* 593 */,
U64_C(0x56f56a9e87ffd78c) /* 594 */, U64_C(0x2dc2940d99f42bc6) /* 595 */,
U64_C(0x98f7df096b096e2d) /* 596 */, U64_C(0x19a6e01e3ad852bf) /* 597 */,
U64_C(0x42a99ccbdbd4b40b) /* 598 */, U64_C(0xa59998af45e9c559) /* 599 */,
U64_C(0x366295e807d93186) /* 600 */, U64_C(0x6b48181bfaa1f773) /* 601 */,
U64_C(0x1fec57e2157a0a1d) /* 602 */, U64_C(0x4667446af6201ad5) /* 603 */,
U64_C(0xe615ebcacfb0f075) /* 604 */, U64_C(0xb8f31f4f68290778) /* 605 */,
U64_C(0x22713ed6ce22d11e) /* 606 */, U64_C(0x3057c1a72ec3c93b) /* 607 */,
U64_C(0xcb46acc37c3f1f2f) /* 608 */, U64_C(0xdbb893fd02aaf50e) /* 609 */,
U64_C(0x331fd92e600b9fcf) /* 610 */, U64_C(0xa498f96148ea3ad6) /* 611 */,
U64_C(0xa8d8426e8b6a83ea) /* 612 */, U64_C(0xa089b274b7735cdc) /* 613 */,
U64_C(0x87f6b3731e524a11) /* 614 */, U64_C(0x118808e5cbc96749) /* 615 */,
U64_C(0x9906e4c7b19bd394) /* 616 */, U64_C(0xafed7f7e9b24a20c) /* 617 */,
U64_C(0x6509eadeeb3644a7) /* 618 */, U64_C(0x6c1ef1d3e8ef0ede) /* 619 */,
U64_C(0xb9c97d43e9798fb4) /* 620 */, U64_C(0xa2f2d784740c28a3) /* 621 */,
U64_C(0x7b8496476197566f) /* 622 */, U64_C(0x7a5be3e6b65f069d) /* 623 */,
U64_C(0xf96330ed78be6f10) /* 624 */, U64_C(0xeee60de77a076a15) /* 625 */,
U64_C(0x2b4bee4aa08b9bd0) /* 626 */, U64_C(0x6a56a63ec7b8894e) /* 627 */,
U64_C(0x02121359ba34fef4) /* 628 */, U64_C(0x4cbf99f8283703fc) /* 629 */,
U64_C(0x398071350caf30c8) /* 630 */, U64_C(0xd0a77a89f017687a) /* 631 */,
U64_C(0xf1c1a9eb9e423569) /* 632 */, U64_C(0x8c7976282dee8199) /* 633 */,
U64_C(0x5d1737a5dd1f7abd) /* 634 */, U64_C(0x4f53433c09a9fa80) /* 635 */,
U64_C(0xfa8b0c53df7ca1d9) /* 636 */, U64_C(0x3fd9dcbc886ccb77) /* 637 */,
U64_C(0xc040917ca91b4720) /* 638 */, U64_C(0x7dd00142f9d1dcdf) /* 639 */,
U64_C(0x8476fc1d4f387b58) /* 640 */, U64_C(0x23f8e7c5f3316503) /* 641 */,
U64_C(0x032a2244e7e37339) /* 642 */, U64_C(0x5c87a5d750f5a74b) /* 643 */,
U64_C(0x082b4cc43698992e) /* 644 */, U64_C(0xdf917becb858f63c) /* 645 */,
U64_C(0x3270b8fc5bf86dda) /* 646 */, U64_C(0x10ae72bb29b5dd76) /* 647 */,
U64_C(0x576ac94e7700362b) /* 648 */, U64_C(0x1ad112dac61efb8f) /* 649 */,
U64_C(0x691bc30ec5faa427) /* 650 */, U64_C(0xff246311cc327143) /* 651 */,
U64_C(0x3142368e30e53206) /* 652 */, U64_C(0x71380e31e02ca396) /* 653 */,
U64_C(0x958d5c960aad76f1) /* 654 */, U64_C(0xf8d6f430c16da536) /* 655 */,
U64_C(0xc8ffd13f1be7e1d2) /* 656 */, U64_C(0x7578ae66004ddbe1) /* 657 */,
U64_C(0x05833f01067be646) /* 658 */, U64_C(0xbb34b5ad3bfe586d) /* 659 */,
U64_C(0x095f34c9a12b97f0) /* 660 */, U64_C(0x247ab64525d60ca8) /* 661 */,
U64_C(0xdcdbc6f3017477d1) /* 662 */, U64_C(0x4a2e14d4decad24d) /* 663 */,
U64_C(0xbdb5e6d9be0a1eeb) /* 664 */, U64_C(0x2a7e70f7794301ab) /* 665 */,
U64_C(0xdef42d8a270540fd) /* 666 */, U64_C(0x01078ec0a34c22c1) /* 667 */,
U64_C(0xe5de511af4c16387) /* 668 */, U64_C(0x7ebb3a52bd9a330a) /* 669 */,
U64_C(0x77697857aa7d6435) /* 670 */, U64_C(0x004e831603ae4c32) /* 671 */,
U64_C(0xe7a21020ad78e312) /* 672 */, U64_C(0x9d41a70c6ab420f2) /* 673 */,
U64_C(0x28e06c18ea1141e6) /* 674 */, U64_C(0xd2b28cbd984f6b28) /* 675 */,
U64_C(0x26b75f6c446e9d83) /* 676 */, U64_C(0xba47568c4d418d7f) /* 677 */,
U64_C(0xd80badbfe6183d8e) /* 678 */, U64_C(0x0e206d7f5f166044) /* 679 */,
U64_C(0xe258a43911cbca3e) /* 680 */, U64_C(0x723a1746b21dc0bc) /* 681 */,
U64_C(0xc7caa854f5d7cdd3) /* 682 */, U64_C(0x7cac32883d261d9c) /* 683 */,
U64_C(0x7690c26423ba942c) /* 684 */, U64_C(0x17e55524478042b8) /* 685 */,
U64_C(0xe0be477656a2389f) /* 686 */, U64_C(0x4d289b5e67ab2da0) /* 687 */,
U64_C(0x44862b9c8fbbfd31) /* 688 */, U64_C(0xb47cc8049d141365) /* 689 */,
U64_C(0x822c1b362b91c793) /* 690 */, U64_C(0x4eb14655fb13dfd8) /* 691 */,
U64_C(0x1ecbba0714e2a97b) /* 692 */, U64_C(0x6143459d5cde5f14) /* 693 */,
U64_C(0x53a8fbf1d5f0ac89) /* 694 */, U64_C(0x97ea04d81c5e5b00) /* 695 */,
U64_C(0x622181a8d4fdb3f3) /* 696 */, U64_C(0xe9bcd341572a1208) /* 697 */,
U64_C(0x1411258643cce58a) /* 698 */, U64_C(0x9144c5fea4c6e0a4) /* 699 */,
U64_C(0x0d33d06565cf620f) /* 700 */, U64_C(0x54a48d489f219ca1) /* 701 */,
U64_C(0xc43e5eac6d63c821) /* 702 */, U64_C(0xa9728b3a72770daf) /* 703 */,
U64_C(0xd7934e7b20df87ef) /* 704 */, U64_C(0xe35503b61a3e86e5) /* 705 */,
U64_C(0xcae321fbc819d504) /* 706 */, U64_C(0x129a50b3ac60bfa6) /* 707 */,
U64_C(0xcd5e68ea7e9fb6c3) /* 708 */, U64_C(0xb01c90199483b1c7) /* 709 */,
U64_C(0x3de93cd5c295376c) /* 710 */, U64_C(0xaed52edf2ab9ad13) /* 711 */,
U64_C(0x2e60f512c0a07884) /* 712 */, U64_C(0xbc3d86a3e36210c9) /* 713 */,
U64_C(0x35269d9b163951ce) /* 714 */, U64_C(0x0c7d6e2ad0cdb5fa) /* 715 */,
U64_C(0x59e86297d87f5733) /* 716 */, U64_C(0x298ef221898db0e7) /* 717 */,
U64_C(0x55000029d1a5aa7e) /* 718 */, U64_C(0x8bc08ae1b5061b45) /* 719 */,
U64_C(0xc2c31c2b6c92703a) /* 720 */, U64_C(0x94cc596baf25ef42) /* 721 */,
U64_C(0x0a1d73db22540456) /* 722 */, U64_C(0x04b6a0f9d9c4179a) /* 723 */,
U64_C(0xeffdafa2ae3d3c60) /* 724 */, U64_C(0xf7c8075bb49496c4) /* 725 */,
U64_C(0x9cc5c7141d1cd4e3) /* 726 */, U64_C(0x78bd1638218e5534) /* 727 */,
U64_C(0xb2f11568f850246a) /* 728 */, U64_C(0xedfabcfa9502bc29) /* 729 */,
U64_C(0x796ce5f2da23051b) /* 730 */, U64_C(0xaae128b0dc93537c) /* 731 */,
U64_C(0x3a493da0ee4b29ae) /* 732 */, U64_C(0xb5df6b2c416895d7) /* 733 */,
U64_C(0xfcabbd25122d7f37) /* 734 */, U64_C(0x70810b58105dc4b1) /* 735 */,
U64_C(0xe10fdd37f7882a90) /* 736 */, U64_C(0x524dcab5518a3f5c) /* 737 */,
U64_C(0x3c9e85878451255b) /* 738 */, U64_C(0x4029828119bd34e2) /* 739 */,
U64_C(0x74a05b6f5d3ceccb) /* 740 */, U64_C(0xb610021542e13eca) /* 741 */,
U64_C(0x0ff979d12f59e2ac) /* 742 */, U64_C(0x6037da27e4f9cc50) /* 743 */,
U64_C(0x5e92975a0df1847d) /* 744 */, U64_C(0xd66de190d3e623fe) /* 745 */,
U64_C(0x5032d6b87b568048) /* 746 */, U64_C(0x9a36b7ce8235216e) /* 747 */,
U64_C(0x80272a7a24f64b4a) /* 748 */, U64_C(0x93efed8b8c6916f7) /* 749 */,
U64_C(0x37ddbff44cce1555) /* 750 */, U64_C(0x4b95db5d4b99bd25) /* 751 */,
U64_C(0x92d3fda169812fc0) /* 752 */, U64_C(0xfb1a4a9a90660bb6) /* 753 */,
U64_C(0x730c196946a4b9b2) /* 754 */, U64_C(0x81e289aa7f49da68) /* 755 */,
U64_C(0x64669a0f83b1a05f) /* 756 */, U64_C(0x27b3ff7d9644f48b) /* 757 */,
U64_C(0xcc6b615c8db675b3) /* 758 */, U64_C(0x674f20b9bcebbe95) /* 759 */,
U64_C(0x6f31238275655982) /* 760 */, U64_C(0x5ae488713e45cf05) /* 761 */,
U64_C(0xbf619f9954c21157) /* 762 */, U64_C(0xeabac46040a8eae9) /* 763 */,
U64_C(0x454c6fe9f2c0c1cd) /* 764 */, U64_C(0x419cf6496412691c) /* 765 */,
U64_C(0xd3dc3bef265b0f70) /* 766 */, U64_C(0x6d0e60f5c3578a9e) /* 767 */
};
static u64 sbox4[256] = {
U64_C(0x5b0e608526323c55) /* 768 */, U64_C(0x1a46c1a9fa1b59f5) /* 769 */,
U64_C(0xa9e245a17c4c8ffa) /* 770 */, U64_C(0x65ca5159db2955d7) /* 771 */,
U64_C(0x05db0a76ce35afc2) /* 772 */, U64_C(0x81eac77ea9113d45) /* 773 */,
U64_C(0x528ef88ab6ac0a0d) /* 774 */, U64_C(0xa09ea253597be3ff) /* 775 */,
U64_C(0x430ddfb3ac48cd56) /* 776 */, U64_C(0xc4b3a67af45ce46f) /* 777 */,
U64_C(0x4ececfd8fbe2d05e) /* 778 */, U64_C(0x3ef56f10b39935f0) /* 779 */,
U64_C(0x0b22d6829cd619c6) /* 780 */, U64_C(0x17fd460a74df2069) /* 781 */,
U64_C(0x6cf8cc8e8510ed40) /* 782 */, U64_C(0xd6c824bf3a6ecaa7) /* 783 */,
U64_C(0x61243d581a817049) /* 784 */, U64_C(0x048bacb6bbc163a2) /* 785 */,
U64_C(0xd9a38ac27d44cc32) /* 786 */, U64_C(0x7fddff5baaf410ab) /* 787 */,
U64_C(0xad6d495aa804824b) /* 788 */, U64_C(0xe1a6a74f2d8c9f94) /* 789 */,
U64_C(0xd4f7851235dee8e3) /* 790 */, U64_C(0xfd4b7f886540d893) /* 791 */,
U64_C(0x247c20042aa4bfda) /* 792 */, U64_C(0x096ea1c517d1327c) /* 793 */,
U64_C(0xd56966b4361a6685) /* 794 */, U64_C(0x277da5c31221057d) /* 795 */,
U64_C(0x94d59893a43acff7) /* 796 */, U64_C(0x64f0c51ccdc02281) /* 797 */,
U64_C(0x3d33bcc4ff6189db) /* 798 */, U64_C(0xe005cb184ce66af1) /* 799 */,
U64_C(0xff5ccd1d1db99bea) /* 800 */, U64_C(0xb0b854a7fe42980f) /* 801 */,
U64_C(0x7bd46a6a718d4b9f) /* 802 */, U64_C(0xd10fa8cc22a5fd8c) /* 803 */,
U64_C(0xd31484952be4bd31) /* 804 */, U64_C(0xc7fa975fcb243847) /* 805 */,
U64_C(0x4886ed1e5846c407) /* 806 */, U64_C(0x28cddb791eb70b04) /* 807 */,
U64_C(0xc2b00be2f573417f) /* 808 */, U64_C(0x5c9590452180f877) /* 809 */,
U64_C(0x7a6bddfff370eb00) /* 810 */, U64_C(0xce509e38d6d9d6a4) /* 811 */,
U64_C(0xebeb0f00647fa702) /* 812 */, U64_C(0x1dcc06cf76606f06) /* 813 */,
U64_C(0xe4d9f28ba286ff0a) /* 814 */, U64_C(0xd85a305dc918c262) /* 815 */,
U64_C(0x475b1d8732225f54) /* 816 */, U64_C(0x2d4fb51668ccb5fe) /* 817 */,
U64_C(0xa679b9d9d72bba20) /* 818 */, U64_C(0x53841c0d912d43a5) /* 819 */,
U64_C(0x3b7eaa48bf12a4e8) /* 820 */, U64_C(0x781e0e47f22f1ddf) /* 821 */,
U64_C(0xeff20ce60ab50973) /* 822 */, U64_C(0x20d261d19dffb742) /* 823 */,
U64_C(0x16a12b03062a2e39) /* 824 */, U64_C(0x1960eb2239650495) /* 825 */,
U64_C(0x251c16fed50eb8b8) /* 826 */, U64_C(0x9ac0c330f826016e) /* 827 */,
U64_C(0xed152665953e7671) /* 828 */, U64_C(0x02d63194a6369570) /* 829 */,
U64_C(0x5074f08394b1c987) /* 830 */, U64_C(0x70ba598c90b25ce1) /* 831 */,
U64_C(0x794a15810b9742f6) /* 832 */, U64_C(0x0d5925e9fcaf8c6c) /* 833 */,
U64_C(0x3067716cd868744e) /* 834 */, U64_C(0x910ab077e8d7731b) /* 835 */,
U64_C(0x6a61bbdb5ac42f61) /* 836 */, U64_C(0x93513efbf0851567) /* 837 */,
U64_C(0xf494724b9e83e9d5) /* 838 */, U64_C(0xe887e1985c09648d) /* 839 */,
U64_C(0x34b1d3c675370cfd) /* 840 */, U64_C(0xdc35e433bc0d255d) /* 841 */,
U64_C(0xd0aab84234131be0) /* 842 */, U64_C(0x08042a50b48b7eaf) /* 843 */,
U64_C(0x9997c4ee44a3ab35) /* 844 */, U64_C(0x829a7b49201799d0) /* 845 */,
U64_C(0x263b8307b7c54441) /* 846 */, U64_C(0x752f95f4fd6a6ca6) /* 847 */,
U64_C(0x927217402c08c6e5) /* 848 */, U64_C(0x2a8ab754a795d9ee) /* 849 */,
U64_C(0xa442f7552f72943d) /* 850 */, U64_C(0x2c31334e19781208) /* 851 */,
U64_C(0x4fa98d7ceaee6291) /* 852 */, U64_C(0x55c3862f665db309) /* 853 */,
U64_C(0xbd0610175d53b1f3) /* 854 */, U64_C(0x46fe6cb840413f27) /* 855 */,
U64_C(0x3fe03792df0cfa59) /* 856 */, U64_C(0xcfe700372eb85e8f) /* 857 */,
U64_C(0xa7be29e7adbce118) /* 858 */, U64_C(0xe544ee5cde8431dd) /* 859 */,
U64_C(0x8a781b1b41f1873e) /* 860 */, U64_C(0xa5c94c78a0d2f0e7) /* 861 */,
U64_C(0x39412e2877b60728) /* 862 */, U64_C(0xa1265ef3afc9a62c) /* 863 */,
U64_C(0xbcc2770c6a2506c5) /* 864 */, U64_C(0x3ab66dd5dce1ce12) /* 865 */,
U64_C(0xe65499d04a675b37) /* 866 */, U64_C(0x7d8f523481bfd216) /* 867 */,
U64_C(0x0f6f64fcec15f389) /* 868 */, U64_C(0x74efbe618b5b13c8) /* 869 */,
U64_C(0xacdc82b714273e1d) /* 870 */, U64_C(0xdd40bfe003199d17) /* 871 */,
U64_C(0x37e99257e7e061f8) /* 872 */, U64_C(0xfa52626904775aaa) /* 873 */,
U64_C(0x8bbbf63a463d56f9) /* 874 */, U64_C(0xf0013f1543a26e64) /* 875 */,
U64_C(0xa8307e9f879ec898) /* 876 */, U64_C(0xcc4c27a4150177cc) /* 877 */,
U64_C(0x1b432f2cca1d3348) /* 878 */, U64_C(0xde1d1f8f9f6fa013) /* 879 */,
U64_C(0x606602a047a7ddd6) /* 880 */, U64_C(0xd237ab64cc1cb2c7) /* 881 */,
U64_C(0x9b938e7225fcd1d3) /* 882 */, U64_C(0xec4e03708e0ff476) /* 883 */,
U64_C(0xfeb2fbda3d03c12d) /* 884 */, U64_C(0xae0bced2ee43889a) /* 885 */,
U64_C(0x22cb8923ebfb4f43) /* 886 */, U64_C(0x69360d013cf7396d) /* 887 */,
U64_C(0x855e3602d2d4e022) /* 888 */, U64_C(0x073805bad01f784c) /* 889 */,
U64_C(0x33e17a133852f546) /* 890 */, U64_C(0xdf4874058ac7b638) /* 891 */,
U64_C(0xba92b29c678aa14a) /* 892 */, U64_C(0x0ce89fc76cfaadcd) /* 893 */,
U64_C(0x5f9d4e0908339e34) /* 894 */, U64_C(0xf1afe9291f5923b9) /* 895 */,
U64_C(0x6e3480f60f4a265f) /* 896 */, U64_C(0xeebf3a2ab29b841c) /* 897 */,
U64_C(0xe21938a88f91b4ad) /* 898 */, U64_C(0x57dfeff845c6d3c3) /* 899 */,
U64_C(0x2f006b0bf62caaf2) /* 900 */, U64_C(0x62f479ef6f75ee78) /* 901 */,
U64_C(0x11a55ad41c8916a9) /* 902 */, U64_C(0xf229d29084fed453) /* 903 */,
U64_C(0x42f1c27b16b000e6) /* 904 */, U64_C(0x2b1f76749823c074) /* 905 */,
U64_C(0x4b76eca3c2745360) /* 906 */, U64_C(0x8c98f463b91691bd) /* 907 */,
U64_C(0x14bcc93cf1ade66a) /* 908 */, U64_C(0x8885213e6d458397) /* 909 */,
U64_C(0x8e177df0274d4711) /* 910 */, U64_C(0xb49b73b5503f2951) /* 911 */,
U64_C(0x10168168c3f96b6b) /* 912 */, U64_C(0x0e3d963b63cab0ae) /* 913 */,
U64_C(0x8dfc4b5655a1db14) /* 914 */, U64_C(0xf789f1356e14de5c) /* 915 */,
U64_C(0x683e68af4e51dac1) /* 916 */, U64_C(0xc9a84f9d8d4b0fd9) /* 917 */,
U64_C(0x3691e03f52a0f9d1) /* 918 */, U64_C(0x5ed86e46e1878e80) /* 919 */,
U64_C(0x3c711a0e99d07150) /* 920 */, U64_C(0x5a0865b20c4e9310) /* 921 */,
U64_C(0x56fbfc1fe4f0682e) /* 922 */, U64_C(0xea8d5de3105edf9b) /* 923 */,
U64_C(0x71abfdb12379187a) /* 924 */, U64_C(0x2eb99de1bee77b9c) /* 925 */,
U64_C(0x21ecc0ea33cf4523) /* 926 */, U64_C(0x59a4d7521805c7a1) /* 927 */,
U64_C(0x3896f5eb56ae7c72) /* 928 */, U64_C(0xaa638f3db18f75dc) /* 929 */,
U64_C(0x9f39358dabe9808e) /* 930 */, U64_C(0xb7defa91c00b72ac) /* 931 */,
U64_C(0x6b5541fd62492d92) /* 932 */, U64_C(0x6dc6dee8f92e4d5b) /* 933 */,
U64_C(0x353f57abc4beea7e) /* 934 */, U64_C(0x735769d6da5690ce) /* 935 */,
U64_C(0x0a234aa642391484) /* 936 */, U64_C(0xf6f9508028f80d9d) /* 937 */,
U64_C(0xb8e319a27ab3f215) /* 938 */, U64_C(0x31ad9c1151341a4d) /* 939 */,
U64_C(0x773c22a57bef5805) /* 940 */, U64_C(0x45c7561a07968633) /* 941 */,
U64_C(0xf913da9e249dbe36) /* 942 */, U64_C(0xda652d9b78a64c68) /* 943 */,
U64_C(0x4c27a97f3bc334ef) /* 944 */, U64_C(0x76621220e66b17f4) /* 945 */,
U64_C(0x967743899acd7d0b) /* 946 */, U64_C(0xf3ee5bcae0ed6782) /* 947 */,
U64_C(0x409f753600c879fc) /* 948 */, U64_C(0x06d09a39b5926db6) /* 949 */,
U64_C(0x6f83aeb0317ac588) /* 950 */, U64_C(0x01e6ca4a86381f21) /* 951 */,
U64_C(0x66ff3462d19f3025) /* 952 */, U64_C(0x72207c24ddfd3bfb) /* 953 */,
U64_C(0x4af6b6d3e2ece2eb) /* 954 */, U64_C(0x9c994dbec7ea08de) /* 955 */,
U64_C(0x49ace597b09a8bc4) /* 956 */, U64_C(0xb38c4766cf0797ba) /* 957 */,
U64_C(0x131b9373c57c2a75) /* 958 */, U64_C(0xb1822cce61931e58) /* 959 */,
U64_C(0x9d7555b909ba1c0c) /* 960 */, U64_C(0x127fafdd937d11d2) /* 961 */,
U64_C(0x29da3badc66d92e4) /* 962 */, U64_C(0xa2c1d57154c2ecbc) /* 963 */,
U64_C(0x58c5134d82f6fe24) /* 964 */, U64_C(0x1c3ae3515b62274f) /* 965 */,
U64_C(0xe907c82e01cb8126) /* 966 */, U64_C(0xf8ed091913e37fcb) /* 967 */,
U64_C(0x3249d8f9c80046c9) /* 968 */, U64_C(0x80cf9bede388fb63) /* 969 */,
U64_C(0x1881539a116cf19e) /* 970 */, U64_C(0x5103f3f76bd52457) /* 971 */,
U64_C(0x15b7e6f5ae47f7a8) /* 972 */, U64_C(0xdbd7c6ded47e9ccf) /* 973 */,
U64_C(0x44e55c410228bb1a) /* 974 */, U64_C(0xb647d4255edb4e99) /* 975 */,
U64_C(0x5d11882bb8aafc30) /* 976 */, U64_C(0xf5098bbb29d3212a) /* 977 */,
U64_C(0x8fb5ea14e90296b3) /* 978 */, U64_C(0x677b942157dd025a) /* 979 */,
U64_C(0xfb58e7c0a390acb5) /* 980 */, U64_C(0x89d3674c83bd4a01) /* 981 */,
U64_C(0x9e2da4df4bf3b93b) /* 982 */, U64_C(0xfcc41e328cab4829) /* 983 */,
U64_C(0x03f38c96ba582c52) /* 984 */, U64_C(0xcad1bdbd7fd85db2) /* 985 */,
U64_C(0xbbb442c16082ae83) /* 986 */, U64_C(0xb95fe86ba5da9ab0) /* 987 */,
U64_C(0xb22e04673771a93f) /* 988 */, U64_C(0x845358c9493152d8) /* 989 */,
U64_C(0xbe2a488697b4541e) /* 990 */, U64_C(0x95a2dc2dd38e6966) /* 991 */,
U64_C(0xc02c11ac923c852b) /* 992 */, U64_C(0x2388b1990df2a87b) /* 993 */,
U64_C(0x7c8008fa1b4f37be) /* 994 */, U64_C(0x1f70d0c84d54e503) /* 995 */,
U64_C(0x5490adec7ece57d4) /* 996 */, U64_C(0x002b3c27d9063a3a) /* 997 */,
U64_C(0x7eaea3848030a2bf) /* 998 */, U64_C(0xc602326ded2003c0) /* 999 */,
U64_C(0x83a7287d69a94086) /* 1000 */, U64_C(0xc57a5fcb30f57a8a) /* 1001 */,
U64_C(0xb56844e479ebe779) /* 1002 */, U64_C(0xa373b40f05dcbce9) /* 1003 */,
U64_C(0xd71a786e88570ee2) /* 1004 */, U64_C(0x879cbacdbde8f6a0) /* 1005 */,
U64_C(0x976ad1bcc164a32f) /* 1006 */, U64_C(0xab21e25e9666d78b) /* 1007 */,
U64_C(0x901063aae5e5c33c) /* 1008 */, U64_C(0x9818b34448698d90) /* 1009 */,
U64_C(0xe36487ae3e1e8abb) /* 1010 */, U64_C(0xafbdf931893bdcb4) /* 1011 */,
U64_C(0x6345a0dc5fbbd519) /* 1012 */, U64_C(0x8628fe269b9465ca) /* 1013 */,
U64_C(0x1e5d01603f9c51ec) /* 1014 */, U64_C(0x4de44006a15049b7) /* 1015 */,
U64_C(0xbf6c70e5f776cbb1) /* 1016 */, U64_C(0x411218f2ef552bed) /* 1017 */,
U64_C(0xcb0c0708705a36a3) /* 1018 */, U64_C(0xe74d14754f986044) /* 1019 */,
U64_C(0xcd56d9430ea8280e) /* 1020 */, U64_C(0xc12591d7535f5065) /* 1021 */,
U64_C(0xc83223f1720aef96) /* 1022 */, U64_C(0xc3a0396f7363a51f) /* 1023 */
};
static void
-tiger_init( void *context )
+do_init (void *context, int variant)
{
TIGER_CONTEXT *hd = context;
hd->a = 0x0123456789abcdefLL;
hd->b = 0xfedcba9876543210LL;
hd->c = 0xf096a5b4c3b2e187LL;
hd->nblocks = 0;
hd->count = 0;
+ hd->variant = variant;
+}
+
+static void
+tiger_init (void *context)
+{
+ do_init (context, 0);
+}
+
+static void
+tiger1_init (void *context)
+{
+ do_init (context, 1);
+}
+
+static void
+tiger2_init (void *context)
+{
+ do_init (context, 2);
}
static void
tiger_round( u64 *ra, u64 *rb, u64 *rc, u64 x, int mul )
{
u64 a = *ra;
u64 b = *rb;
u64 c = *rc;
c ^= x;
a -= ( sbox1[ c & 0xff ] ^ sbox2[ (c >> 16) & 0xff ]
^ sbox3[ (c >> 32) & 0xff ] ^ sbox4[ (c >> 48) & 0xff ]);
b += ( sbox4[ (c >> 8) & 0xff ] ^ sbox3[ (c >> 24) & 0xff ]
^ sbox2[ (c >> 40) & 0xff ] ^ sbox1[ (c >> 56) & 0xff ]);
b *= mul;
*ra = a;
*rb = b;
*rc = c;
}
static void
pass( u64 *ra, u64 *rb, u64 *rc, u64 *x, int mul )
{
u64 a = *ra;
u64 b = *rb;
u64 c = *rc;
tiger_round( &a, &b, &c, x[0], mul );
tiger_round( &b, &c, &a, x[1], mul );
tiger_round( &c, &a, &b, x[2], mul );
tiger_round( &a, &b, &c, x[3], mul );
tiger_round( &b, &c, &a, x[4], mul );
tiger_round( &c, &a, &b, x[5], mul );
tiger_round( &a, &b, &c, x[6], mul );
tiger_round( &b, &c, &a, x[7], mul );
*ra = a;
*rb = b;
*rc = c;
}
static void
key_schedule( u64 *x )
{
x[0] -= x[7] ^ 0xa5a5a5a5a5a5a5a5LL;
x[1] ^= x[0];
x[2] += x[1];
x[3] -= x[2] ^ ((~x[1]) << 19 );
x[4] ^= x[3];
x[5] += x[4];
x[6] -= x[5] ^ ((~x[4]) >> 23 );
x[7] ^= x[6];
x[0] += x[7];
x[1] -= x[0] ^ ((~x[7]) << 19 );
x[2] ^= x[1];
x[3] += x[2];
x[4] -= x[3] ^ ((~x[2]) >> 23 );
x[5] ^= x[4];
x[6] += x[5];
x[7] -= x[6] ^ 0x0123456789abcdefLL;
}
/****************
* Transform the message DATA which consists of 512 bytes (8 words)
*/
static void
transform ( TIGER_CONTEXT *hd, const unsigned char *data )
{
u64 a,b,c,aa,bb,cc;
u64 x[8];
#ifdef WORDS_BIGENDIAN
#define MKWORD(d,n) \
( ((u64)(d)[8*(n)+7]) << 56 | ((u64)(d)[8*(n)+6]) << 48 \
| ((u64)(d)[8*(n)+5]) << 40 | ((u64)(d)[8*(n)+4]) << 32 \
| ((u64)(d)[8*(n)+3]) << 24 | ((u64)(d)[8*(n)+2]) << 16 \
| ((u64)(d)[8*(n)+1]) << 8 | ((u64)(d)[8*(n) ]) )
x[0] = MKWORD(data, 0);
x[1] = MKWORD(data, 1);
x[2] = MKWORD(data, 2);
x[3] = MKWORD(data, 3);
x[4] = MKWORD(data, 4);
x[5] = MKWORD(data, 5);
x[6] = MKWORD(data, 6);
x[7] = MKWORD(data, 7);
#undef MKWORD
#else
memcpy( &x[0], data, 64 );
#endif
/* save */
a = aa = hd->a;
b = bb = hd->b;
c = cc = hd->c;
pass( &a, &b, &c, x, 5);
key_schedule( x );
pass( &c, &a, &b, x, 7);
key_schedule( x );
pass( &b, &c, &a, x, 9);
/* feedforward */
a ^= aa;
b -= bb;
c += cc;
/* store */
hd->a = a;
hd->b = b;
hd->c = c;
}
/* Update the message digest with the contents
* of INBUF with length INLEN.
*/
static void
tiger_write ( void *context, const void *inbuf_arg, size_t inlen)
{
const unsigned char *inbuf = inbuf_arg;
TIGER_CONTEXT *hd = context;
if( hd->count == 64 ) /* flush the buffer */
{
transform( hd, hd->buf );
_gcry_burn_stack (21*8+11*sizeof(void*));
hd->count = 0;
hd->nblocks++;
}
if( !inbuf )
return;
if( hd->count )
{
for( ; inlen && hd->count < 64; inlen-- )
hd->buf[hd->count++] = *inbuf++;
tiger_write( hd, NULL, 0 );
if( !inlen )
return;
}
while( inlen >= 64 )
{
transform( hd, inbuf );
hd->count = 0;
hd->nblocks++;
inlen -= 64;
inbuf += 64;
}
_gcry_burn_stack (21*8+11*sizeof(void*));
for( ; inlen && hd->count < 64; inlen-- )
hd->buf[hd->count++] = *inbuf++;
}
/* The routine terminates the computation
*/
static void
tiger_final( void *context )
{
TIGER_CONTEXT *hd = context;
u32 t, msb, lsb;
byte *p;
+ byte pad = hd->variant == 2? 0x80 : 0x01;
tiger_write(hd, NULL, 0); /* flush */;
t = hd->nblocks;
/* multiply by 64 to make a byte count */
lsb = t << 6;
msb = t >> 26;
/* add the count */
t = lsb;
if( (lsb += hd->count) < t )
msb++;
/* multiply by 8 to make a bit count */
t = lsb;
lsb <<= 3;
msb <<= 3;
msb |= t >> 29;
if( hd->count < 56 ) /* enough room */
{
- hd->buf[hd->count++] = 0x01; /* pad */
+ hd->buf[hd->count++] = pad;
while( hd->count < 56 )
hd->buf[hd->count++] = 0; /* pad */
}
else /* need one extra block */
{
- hd->buf[hd->count++] = 0x01; /* pad character */
+ hd->buf[hd->count++] = pad; /* pad character */
while( hd->count < 64 )
hd->buf[hd->count++] = 0;
tiger_write(hd, NULL, 0); /* flush */;
memset(hd->buf, 0, 56 ); /* fill next block with zeroes */
}
/* append the 64 bit count */
hd->buf[56] = lsb ;
hd->buf[57] = lsb >> 8;
hd->buf[58] = lsb >> 16;
hd->buf[59] = lsb >> 24;
hd->buf[60] = msb ;
hd->buf[61] = msb >> 8;
hd->buf[62] = msb >> 16;
hd->buf[63] = msb >> 24;
transform( hd, hd->buf );
_gcry_burn_stack (21*8+11*sizeof(void*));
p = hd->buf;
#ifdef WORDS_BIGENDIAN
#define X(a) do { *(u64*)p = hd->a ; p += 8; } while(0)
#else /* little endian */
#define X(a) do { *p++ = hd->a >> 56; *p++ = hd->a >> 48; \
*p++ = hd->a >> 40; *p++ = hd->a >> 32; \
*p++ = hd->a >> 24; *p++ = hd->a >> 16; \
*p++ = hd->a >> 8; *p++ = hd->a; } while(0)
#endif
- X(a);
- X(b);
- X(c);
+#define Y(a) do { *p++ = hd->a ; *p++ = hd->a >> 8; \
+ *p++ = hd->a >> 16; *p++ = hd->a >> 24; \
+ *p++ = hd->a >> 32; *p++ = hd->a >> 40; \
+ *p++ = hd->a >> 48; *p++ = hd->a >> 56; } while(0)
+ if (hd->variant == 0)
+ {
+ X(a);
+ X(b);
+ X(c);
+ }
+ else
+ {
+ Y(a);
+ Y(b);
+ Y(c);
+ }
#undef X
+#undef Y
}
static byte *
tiger_read( void *context )
{
TIGER_CONTEXT *hd = context;
return hd->buf;
}
-static byte asn[19] = /* Object ID is 1.3.6.1.4.1.11591.12.2 */
+
+
+/* This is the old TIGER variant based on the unfixed reference
+ implementation. IT was used in GnupG up to 1.3.2. We don't provide
+ an OID anymore because that would not be correct. */
+gcry_md_spec_t _gcry_digest_spec_tiger =
+ {
+ "TIGER192", NULL, 0, NULL, 24,
+ tiger_init, tiger_write, tiger_final, tiger_read,
+ sizeof (TIGER_CONTEXT)
+ };
+
+
+
+/* This is the fixed TIGER implemenation. */
+static byte asn1[19] = /* Object ID is 1.3.6.1.4.1.11591.12.2 */
{ 0x30, 0x29, 0x30, 0x0d, 0x06, 0x09, 0x2b, 0x06,
0x01, 0x04, 0x01, 0xda, 0x47, 0x0c, 0x02,
0x05, 0x00, 0x04, 0x18 };
-static gcry_md_oid_spec_t oid_spec_tiger[] =
+static gcry_md_oid_spec_t oid_spec_tiger1[] =
{
/* GNU.digestAlgorithm TIGER */
{ "1.3.6.1.4.1.11591.12.2" },
{ NULL }
};
-gcry_md_spec_t _gcry_digest_spec_tiger =
+gcry_md_spec_t _gcry_digest_spec_tiger1 =
{
- "TIGER192", asn, DIM (asn), oid_spec_tiger, 24,
- tiger_init, tiger_write, tiger_final, tiger_read,
+ "TIGER", asn1, DIM (asn1), oid_spec_tiger1, 24,
+ tiger1_init, tiger_write, tiger_final, tiger_read,
+ sizeof (TIGER_CONTEXT)
+ };
+
+
+
+/* This is TIGER2 which usues a changed padding algorithm. */
+gcry_md_spec_t _gcry_digest_spec_tiger2 =
+ {
+ "TIGER2", NULL, 0, NULL, 24,
+ tiger2_init, tiger_write, tiger_final, tiger_read,
sizeof (TIGER_CONTEXT)
};
#endif /* HAVE_U64_TYPEDEF */
diff --git a/doc/gcrypt.texi b/doc/gcrypt.texi
index 5e736244..01c352f2 100644
--- a/doc/gcrypt.texi
+++ b/doc/gcrypt.texi
@@ -1,5893 +1,5903 @@
\input texinfo @c -*- Texinfo -*-
@c %**start of header
@setfilename gcrypt.info
@include version.texi
@settitle The Libgcrypt Reference Manual
@c Unify some of the indices.
@syncodeindex tp fn
@syncodeindex pg fn
@c %**end of header
@copying
This manual is for Libgcrypt
(version @value{VERSION}, @value{UPDATED}),
which is GNU's library of cryptographic building blocks.
Copyright @copyright{} 2000, 2002, 2003, 2004, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
@quotation
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2 of the License, or (at your
option) any later version. The text of the license can be found in the
section entitled ``GNU General Public License''.
@end quotation
@end copying
@dircategory GNU Libraries
@direntry
* libgcrypt: (gcrypt). Cryptographic function library.
@end direntry
@c
@c Titlepage
@c
@setchapternewpage odd
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@title The Libgcrypt Reference Manual
@subtitle Version @value{VERSION}
@subtitle @value{UPDATED}
@author Werner Koch (@email{wk@@gnupg.org})
@author Moritz Schulte (@email{mo@@g10code.com})
@page
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@summarycontents
@contents
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@node Top
@top The Libgcrypt Library
@insertcopying
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@menu
* Introduction:: What is Libgcrypt.
* Preparation:: What you should do before using the library.
* Generalities:: General library functions and data types.
* Handler Functions:: Working with handler functions.
* Symmetric cryptography:: How to use symmetric cryptography.
* Public Key cryptography:: How to use public key cryptography.
* Hashing:: How to use hash and MAC algorithms.
* Random Numbers:: How to work with random numbers.
* S-expressions:: How to manage S-expressions.
* MPI library:: How to work with multi-precision-integers.
* Prime numbers:: How to use the Prime number related functions.
* Utilities:: Utility functions.
* Architecture:: How Libgcrypt works internally.
Appendices
* Self-Tests:: Description of the self-tests.
* FIPS Mode:: Description of the FIPS mode.
* Library Copying:: The GNU Lesser General Public License
says how you can copy and share Libgcrypt.
* Copying:: The GNU General Public License says how you
can copy and share some parts of Libgcrypt.
Indices
* Figures and Tables:: Index of figures and tables.
* Concept Index:: Index of concepts and programs.
* Function and Data Index:: Index of functions, variables and data types.
@end menu
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@c **********************************************************
@c ******************* Introduction ***********************
@c **********************************************************
@node Introduction
@chapter Introduction
Libgcrypt is a library providing cryptographic building blocks.
@menu
* Getting Started:: How to use this manual.
* Features:: A glance at Libgcrypt's features.
* Overview:: Overview about the library.
@end menu
@node Getting Started
@section Getting Started
This manual documents the Libgcrypt library application programming
interface (API). All functions and data types provided by the library
are explained.
@noindent
The reader is assumed to possess basic knowledge about applied
cryptography.
This manual can be used in several ways. If read from the beginning
to the end, it gives a good introduction into the library and how it
can be used in an application. Forward references are included where
necessary. Later on, the manual can be used as a reference manual to
get just the information needed about any particular interface of the
library. Experienced programmers might want to start looking at the
examples at the end of the manual, and then only read up those parts
of the interface which are unclear.
@node Features
@section Features
Libgcrypt might have a couple of advantages over other libraries doing
a similar job.
@table @asis
@item It's Free Software
Anybody can use, modify, and redistribute it under the terms of the GNU
Lesser General Public License (@pxref{Library Copying}). Note, that
some parts (which are in general not needed by applications) are subject
to the terms of the GNU General Public License (@pxref{Copying}); please
see the README file of the distribution for of list of these parts.
@item It encapsulates the low level cryptography
Libgcrypt provides a high level interface to cryptographic
building blocks using an extensible and flexible API.
@end table
@node Overview
@section Overview
@noindent
The Libgcrypt library is fully thread-safe, where it makes
sense to be thread-safe. Not thread-safe are some cryptographic
functions that modify a certain context stored in handles. If the
user really intents to use such functions from different threads on
the same handle, he has to take care of the serialization of such
functions himself. If not described otherwise, every function is
thread-safe.
Libgcrypt depends on the library `libgpg-error', which
contains common error handling related code for GnuPG components.
@c **********************************************************
@c ******************* Preparation ************************
@c **********************************************************
@node Preparation
@chapter Preparation
To use Libgcrypt, you have to perform some changes to your
sources and the build system. The necessary changes are small and
explained in the following sections. At the end of this chapter, it
is described how the library is initialized, and how the requirements
of the library are verified.
@menu
* Header:: What header file you need to include.
* Building sources:: How to build sources using the library.
* Building sources using Automake:: How to build sources with the help of Automake.
* Initializing the library:: How to initialize the library.
* Multi-Threading:: How Libgcrypt can be used in a MT environment.
* Enabling FIPS mode:: How to enable the FIPS mode.
@end menu
@node Header
@section Header
All interfaces (data types and functions) of the library are defined
in the header file @file{gcrypt.h}. You must include this in all source
files using the library, either directly or through some other header
file, like this:
@example
#include <gcrypt.h>
@end example
The name space of Libgcrypt is @code{gcry_*} for function
and type names and @code{GCRY*} for other symbols. In addition the
same name prefixes with one prepended underscore are reserved for
internal use and should never be used by an application. Note that
Libgcrypt uses libgpg-error, which uses @code{gpg_*} as
name space for function and type names and @code{GPG_*} for other
symbols, including all the error codes.
@noindent
Certain parts of gcrypt.h may be excluded by defining these macros:
@table @code
@item GCRYPT_NO_MPI_MACROS
Do not define the shorthand macros @code{mpi_*} for @code{gcry_mpi_*}.
@item GCRYPT_NO_DEPRECATED
Do not include defintions for deprecated features. This is useful to
make sure that no deprecated features are used.
@end table
@node Building sources
@section Building sources
If you want to compile a source file including the `gcrypt.h' header
file, you must make sure that the compiler can find it in the
directory hierarchy. This is accomplished by adding the path to the
directory in which the header file is located to the compilers include
file search path (via the @option{-I} option).
However, the path to the include file is determined at the time the
source is configured. To solve this problem, Libgcrypt ships with a small
helper program @command{libgcrypt-config} that knows the path to the
include file and other configuration options. The options that need
to be added to the compiler invocation at compile time are output by
the @option{--cflags} option to @command{libgcrypt-config}. The following
example shows how it can be used at the command line:
@example
gcc -c foo.c `libgcrypt-config --cflags`
@end example
Adding the output of @samp{libgcrypt-config --cflags} to the compilers
command line will ensure that the compiler can find the Libgcrypt header
file.
A similar problem occurs when linking the program with the library.
Again, the compiler has to find the library files. For this to work,
the path to the library files has to be added to the library search path
(via the @option{-L} option). For this, the option @option{--libs} to
@command{libgcrypt-config} can be used. For convenience, this option
also outputs all other options that are required to link the program
with the Libgcrypt libraries (in particular, the @samp{-lgcrypt}
option). The example shows how to link @file{foo.o} with the Libgcrypt
library to a program @command{foo}.
@example
gcc -o foo foo.o `libgcrypt-config --libs`
@end example
Of course you can also combine both examples to a single command by
specifying both options to @command{libgcrypt-config}:
@example
gcc -o foo foo.c `libgcrypt-config --cflags --libs`
@end example
@node Building sources using Automake
@section Building sources using Automake
It is much easier if you use GNU Automake instead of writing your own
Makefiles. If you do that, you do not have to worry about finding and
invoking the @command{libgcrypt-config} script at all.
Libgcrypt provides an extension to Automake that does all
the work for you.
@c A simple macro for optional variables.
@macro ovar{varname}
@r{[}@var{\varname\}@r{]}
@end macro
@defmac AM_PATH_LIBGCRYPT (@ovar{minimum-version}, @ovar{action-if-found}, @ovar{action-if-not-found})
Check whether Libgcrypt (at least version
@var{minimum-version}, if given) exists on the host system. If it is
found, execute @var{action-if-found}, otherwise do
@var{action-if-not-found}, if given.
Additionally, the function defines @code{LIBGCRYPT_CFLAGS} to the
flags needed for compilation of the program to find the
@file{gcrypt.h} header file, and @code{LIBGCRYPT_LIBS} to the linker
flags needed to link the program to the Libgcrypt library.
@end defmac
You can use the defined Autoconf variables like this in your
@file{Makefile.am}:
@example
AM_CPPFLAGS = $(LIBGCRYPT_CFLAGS)
LDADD = $(LIBGCRYPT_LIBS)
@end example
@node Initializing the library
@section Initializing the library
Before the library can be used, it must initialize itself. This is
achieved by invoking the function @code{gcry_check_version} described
below.
Also, it is often desirable to check that the version of
Libgcrypt used is indeed one which fits all requirements.
Even with binary compatibility, new features may have been introduced,
but due to problem with the dynamic linker an old version may actually
be used. So you may want to check that the version is okay right
after program startup.
@deftypefun {const char *} gcry_check_version (const char *@var{req_version})
The function @code{gcry_check_version} initializes some subsystems used
by Libgcrypt and must be invoked before any other function in the
library, with the exception of the @code{GCRYCTL_SET_THREAD_CBS} command
(called via the @code{gcry_control} function).
@xref{Multi-Threading}.
Furthermore, this function returns the version number of the library.
It can also verify that the version number is higher than a certain
required version number @var{req_version}, if this value is not a null
pointer.
@end deftypefun
Libgcrypt uses a concept known as secure memory, which is a region of
memory set aside for storing sensitive data. Because such memory is a
scarce resource, it needs to be setup in advanced to a fixed size.
Further, most operating systems have special requirements on how that
secure memory can be used. For example, it might be required to install
an application as ``setuid(root)'' to allow allocating such memory.
Libgcrypt requires a sequence of initialization steps to make sure that
this works correctly. The following examples show the necessary steps.
If you don't have a need for secure memory, for example if your
application does not use secret keys or other confidential data or it
runs in a controlled environment where key material floating around in
memory is not a problem, you should initialize Libgcrypt this way:
@example
/* Version check should be the very first call because it
makes sure that important subsystems are intialized. */
if (!gcry_check_version (GCRYPT_VERSION))
@{
fputs ("libgcrypt version mismatch\n", stderr);
exit (2);
@}
/* Disable secure memory. */
gcry_control (GCRYCTL_DISABLE_SECMEM, 0);
/* ... If required, other initialization goes here. */
/* Tell Libgcrypt that initialization has completed. */
gcry_control (GCRYCTL_INITIALIZATION_FINISHED, 0);
@end example
If you have to protect your keys or other information in memory against
being swapped out to disk and to enable an automatic overwrite of used
and freed memory, you need to initialize Libgcrypt this way:
@example
/* Version check should be the very first call because it
makes sure that important subsystems are intialized. */
if (!gcry_check_version (GCRYPT_VERSION))
@{
fputs ("libgcrypt version mismatch\n", stderr);
exit (2);
@}
@anchor{sample-use-suspend-secmem}
/* We don't want to see any warnings, e.g. because we have not yet
parsed program options which might be used to suppress such
warnings. */
gcry_control (GCRYCTL_SUSPEND_SECMEM_WARN);
/* ... If required, other initialization goes here. Note that the
process might still be running with increased privileges and that
the secure memory has not been intialized. */
/* Allocate a pool of 16k secure memory. This make the secure memory
available and also drops privileges where needed. */
gcry_control (GCRYCTL_INIT_SECMEM, 16384, 0);
@anchor{sample-use-resume-secmem}
/* It is now okay to let Libgcrypt complain when there was/is
a problem with the secure memory. */
gcry_control (GCRYCTL_RESUME_SECMEM_WARN);
/* ... If required, other initialization goes here. */
/* Tell Libgcrypt that initialization has completed. */
gcry_control (GCRYCTL_INITIALIZATION_FINISHED, 0);
@end example
It is important that these initialization steps are not done by a
library but by the actual application. A library using Libgcrypt might
want to check for finished initialization using:
@example
if (!gcry_control (GCRYCTL_INITIALIZATION_FINISHED_P))
@{
fputs ("libgcrypt has not been initialized\n", stderr);
abort ();
@}
@end example
Instead of terminating the process, the library may instead print a
warning and try to initialize Libgcrypt itself. See also the section on
multi-threading below for more pitfalls.
@node Multi-Threading
@section Multi-Threading
As mentioned earlier, the Libgcrypt library is
thread-safe if you adhere to the following requirements:
@itemize @bullet
@item
If your application is multi-threaded, you must set the thread support
callbacks with the @code{GCRYCTL_SET_THREAD_CBS} command
@strong{before} any other function in the library.
This is easy enough if you are indeed writing an application using
Libgcrypt. It is rather problematic if you are writing a library
instead. Here are some tips what to do if you are writing a library:
If your library requires a certain thread package, just initialize
Libgcrypt to use this thread package. If your library supports multiple
thread packages, but needs to be configured, you will have to
implement a way to determine which thread package the application
wants to use with your library anyway. Then configure Libgcrypt to use
this thread package.
If your library is fully reentrant without any special support by a
thread package, then you are lucky indeed. Unfortunately, this does
not relieve you from doing either of the two above, or use a third
option. The third option is to let the application initialize Libgcrypt
for you. Then you are not using Libgcrypt transparently, though.
As if this was not difficult enough, a conflict may arise if two
libraries try to initialize Libgcrypt independently of each others, and
both such libraries are then linked into the same application. To
make it a bit simpler for you, this will probably work, but only if
both libraries have the same requirement for the thread package. This
is currently only supported for the non-threaded case, GNU Pth and
pthread. Support for more thread packages is easy to add, so contact
us if you require it.
@item
The function @code{gcry_check_version} must be called before any other
function in the library, except the @code{GCRYCTL_SET_THREAD_CBS}
command (called via the @code{gcry_control} function), because it
initializes the thread support subsystem in Libgcrypt. To
achieve this in multi-threaded programs, you must synchronize the
memory with respect to other threads that also want to use
Libgcrypt. For this, it is sufficient to call
@code{gcry_check_version} before creating the other threads using
Libgcrypt@footnote{At least this is true for POSIX threads,
as @code{pthread_create} is a function that synchronizes memory with
respects to other threads. There are many functions which have this
property, a complete list can be found in POSIX, IEEE Std 1003.1-2003,
Base Definitions, Issue 6, in the definition of the term ``Memory
Synchronization''. For other thread packages, more relaxed or more
strict rules may apply.}.
@item
Just like the function @code{gpg_strerror}, the function
@code{gcry_strerror} is not thread safe. You have to use
@code{gpg_strerror_r} instead.
@end itemize
Libgcrypt contains convenient macros, which define the
necessary thread callbacks for PThread and for GNU Pth:
@table @code
@item GCRY_THREAD_OPTION_PTH_IMPL
This macro defines the following (static) symbols:
@code{gcry_pth_init}, @code{gcry_pth_mutex_init},
@code{gcry_pth_mutex_destroy}, @code{gcry_pth_mutex_lock},
@code{gcry_pth_mutex_unlock}, @code{gcry_pth_read},
@code{gcry_pth_write}, @code{gcry_pth_select},
@code{gcry_pth_waitpid}, @code{gcry_pth_accept},
@code{gcry_pth_connect}, @code{gcry_threads_pth}.
After including this macro, @code{gcry_control()} shall be used with a
command of @code{GCRYCTL_SET_THREAD_CBS} in order to register the
thread callback structure named ``gcry_threads_pth''. Example:
@smallexample
ret = gcry_control (GCRYCTL_SET_THREAD_CBS, &gcry_threads_pth);
@end smallexample
@item GCRY_THREAD_OPTION_PTHREAD_IMPL
This macro defines the following (static) symbols:
@code{gcry_pthread_mutex_init}, @code{gcry_pthread_mutex_destroy},
@code{gcry_pthread_mutex_lock}, @code{gcry_pthread_mutex_unlock},
@code{gcry_threads_pthread}.
After including this macro, @code{gcry_control()} shall be used with a
command of @code{GCRYCTL_SET_THREAD_CBS} in order to register the
thread callback structure named ``gcry_threads_pthread''. Example:
@smallexample
ret = gcry_control (GCRYCTL_SET_THREAD_CBS, &gcry_threads_pthread);
@end smallexample
@end table
Note that these macros need to be terminated with a semicolon. Keep
in mind that these are convenient macros for C programmers; C++
programmers might have to wrap these macros in an ``extern C'' body.
@node Enabling FIPS mode
@section How to enable the FIPS mode
@cindex FIPS mode
@cindex FIPS 140
Libgcrypt may be used in a FIPS 140-2 mode. Note, that this does not
necessary mean that Libcgrypt is an appoved FIPS 140-2 module. Check the
NIST database at @url{http://csrc.nist.gov/groups/STM/cmvp/} to see what
versions of Libgcrypt are approved.
Because FIPS 140 has certain restrictions on the use of cryptography
which are not always wanted, Libgcrypt needs to be put into FIPS mode
explicitly. Three alternative mechanisms are provided to switch
Libgcrypt into this mode:
@itemize
@item
If the file @file{/proc/sys/crypto/fips_enabled} exists and contains a
numeric value other than @code{0}, Libgcrypt is put into FIPS mode at
initialization time. Obviously this works only on systems with a
@code{proc} file system (i.e. GNU/Linux).
@item
If the file @file{/etc/gcrypt/fips_enabled} exists, Libgcrypt is put
into FIPS mode at initialization time. Note that this filename is
hardwired and does not depend on any configuration options.
@item
If the application requests FIPS mode using the control command
@code{GCRYCTL_FORCE_FIPS_MODE}. This must be done prior to any
initialization (i.e. before @code{gcry_check_version}).
@end itemize
@cindex Enforced FIPS mode
In addition to the standard FIPS mode, Libgcrypt may also be put into
an Enforced FIPS mode by writing a non-zero value into the file
@file{/etc/gcrypt/fips_enabled}. The Enforced FIPS mode helps to
detect applications which don't fulfill all requirements for using
Libgcrypt in FIPS mode (@pxref{FIPS Mode}).
Once Libgcrypt has been put into FIPS mode, it is not possible to
switch back to standard mode without terminating the process first.
If the logging verbosity level of Libgcrypt has been set to at least
2, the state transitions and the self-tests are logged.
@c **********************************************************
@c ******************* General ****************************
@c **********************************************************
@node Generalities
@chapter Generalities
@menu
* Controlling the library:: Controlling Libgcrypt's behavior.
* Modules:: Description of extension modules.
* Error Handling:: Error codes and such.
@end menu
@node Controlling the library
@section Controlling the library
@deftypefun gcry_error_t gcry_control (enum gcry_ctl_cmds @var{cmd}, ...)
This function can be used to influence the general behavior of
Libgcrypt in several ways. Depending on @var{cmd}, more
arguments can or have to be provided.
@table @code
@item GCRYCTL_ENABLE_M_GUARD; Arguments: none
This command enables the built-in memory guard. It must not be used
to activate the memory guard after the memory management has already
been used; therefore it can ONLY be used before
@code{gcry_check_version}. Note that the memory guard is NOT used
when the user of the library has set his own memory management
callbacks.
@item GCRYCTL_ENABLE_QUICK_RANDOM; Arguments: none
This command inhibits the use the very secure random quality level
(@code{GCRY_VERY_STRONG_RANDOM}) and degrades all request down to
@code{GCRY_STRONG_RANDOM}. In general this is not recommened. However,
for some applications the extra quality random Libgcrypt tries to create
is not justified and this option may help to get better performace.
Please check with a crypto expert whether this option can be used for
your application.
This option can only be used at initialization time.
@item GCRYCTL_DUMP_RANDOM_STATS; Arguments: none
This command dumps randum number generator related statistics to the
library's logging stream.
@item GCRYCTL_DUMP_MEMORY_STATS; Arguments: none
This command dumps memory managment related statistics to the library's
logging stream.
@item GCRYCTL_DUMP_SECMEM_STATS; Arguments: none
This command dumps secure memory manamgent related statistics to the
library's logging stream.
@item GCRYCTL_DROP_PRIVS; Arguments: none
This command disables the use of secure memory and drops the priviliges
of the current process. This command has not much use; the suggested way
to disable secure memory is to use @code{GCRYCTL_DISABLE_SECMEM} right
after initialization.
@item GCRYCTL_DISABLE_SECMEM; Arguments: none
This command disables the use of secure memory. If this command is
used in FIPS mode, FIPS mode will be disabled and the function
@code{gcry_fips_mode_active} returns false. However, in Enforced FIPS
mode this command has no effect at all.
Many applications do not require secure memory, so they should disable
it right away. This command should be executed right after
@code{gcry_check_version}.
@item GCRYCTL_INIT_SECMEM; Arguments: int nbytes
This command is used to allocate a pool of secure memory and thus
enabling the use of secure memory. It also drops all extra privileges
the process has (i.e. if it is run as setuid (root)). If the argument
@var{nbytes} is 0, secure memory will be disabled. The minimum amount
of secure memory allocated is currently 16384 bytes; you may thus use a
value of 1 to request that default size.
@item GCRYCTL_TERM_SECMEM; Arguments: none
This command zeroises the secure memory and destroys the handler. The
secure memory pool may not be used anymore after running this command.
If the secure memory pool as already been destroyed, this command has
no effect. Applications might want to run this command from their
exit handler to make sure that the secure memory gets properly
destroyed. This command is not necessarily thread-safe but that
should not be needed in cleanup code. It may be called from a signal
handler.
@item GCRYCTL_DISABLE_SECMEM_WARN; Arguments: none
Disable warning messages about problems with the secure memory
subsystem. This command should be run right after
@code{gcry_check_version}.
@item GCRYCTL_SUSPEND_SECMEM_WARN; Arguments: none
Postpone warning messages from the secure memory subsystem.
@xref{sample-use-suspend-secmem,,the initialization example}, on how to
use it.
@item GCRYCTL_RESUME_SECMEM_WARN; Arguments: none
Resume warning messages from the secure memory subsystem.
@xref{sample-use-resume-secmem,,the initialization example}, on how to
use it.
@item GCRYCTL_USE_SECURE_RNDPOOL; Arguments: none
This command tells the PRNG to store random numbers in secure memory.
This command should be run right after @code{gcry_check_version} and not
later than the command GCRYCTL_INIT_SECMEM. Note that in FIPS mode the
secure memory is always used.
@item GCRYCTL_SET_RANDOM_SEED_FILE; Arguments: const char *filename
This command specifies the file, which is to be used as seed file for
the PRNG. If the seed file is registered prior to initialization of the
PRNG, the seed file's content (if it exists and seems to be valid) is
fed into the PRNG pool. After the seed file has been registered, the
PRNG can be signalled to write out the PRNG pool's content into the seed
file with the following command.
@item GCRYCTL_UPDATE_RANDOM_SEED_FILE; Arguments: none
Write out the PRNG pool's content into the registered seed file.
Multiple instances of the applications sharing the same random seed file
can be started in parallel, in which case they will read out the same
pool and then race for updating it (the last update overwrites earlier
updates). They will differentiate only by the weak entropy that is
added in read_seed_file based on the PID and clock, and up to 16 bytes
of weak random non-blockingly. The consequence is that the output of
these different instances is correlated to some extent. In a perfect
attack scenario, the attacker can control (or at least guess) the PID
and clock of the application, and drain the system's entropy pool to
reduce the "up to 16 bytes" above to 0. Then the dependencies of the
inital states of the pools are completely known. Note that this is not
an issue if random of @code{GCRY_VERY_STRONG_RANDOM} quality is
requested as in this case enough extra entropy gets mixed. It is also
not an issue when using Linux (rndlinux driver), because this one
guarantees to read full 16 bytes from /dev/urandom and thus there is no
way for an attacker without kernel access to control these 16 bytes.
@item GCRYCTL_SET_VERBOSITY; Arguments: int level
This command sets the verbosity of the logging. A level of 0 disables
all extra logging whereas positive numbers enable more verbose logging.
The level may be changed at any time but be aware that no memory
synchronization is done so the effect of this command might not
immediately show up in other threads. This command may even be used
prior to @code{gcry_check_version}.
@item GCRYCTL_SET_DEBUG_FLAGS; Arguments: unsigned int flags
Set the debug flag bits as given by the argument. Be aware that that no
memory synchronization is done so the effect of this command might not
immediately show up in other threads. The debug flags are not
considered part of the API and thus may change without notice. As of
now bit 0 enables debugging of cipher functions and bit 1 debugging of
multi-precision-integers. This command may even be used prior to
@code{gcry_check_version}.
@item GCRYCTL_CLEAR_DEBUG_FLAGS; Arguments: unsigned int flags
Set the debug flag bits as given by the argument. Be aware that that no
memory synchronization is done so the effect of this command might not
immediately show up in other threads. This command may even be used
prior to @code{gcry_check_version}.
@item GCRYCTL_DISABLE_INTERNAL_LOCKING; Arguments: none
This command does nothing. It exists only for backward compatibility.
@item GCRYCTL_ANY_INITIALIZATION_P; Arguments: none
This command returns true if the library has been basically initialized.
Such a basic initialization happens implicitly with many commands to get
certain internal subsystems running. The common and suggested way to
do this basic intialization is by calling gcry_check_version.
@item GCRYCTL_INITIALIZATION_FINISHED; Arguments: none
This command tells the libray that the application has finished the
intialization.
@item GCRYCTL_INITIALIZATION_FINISHED_P; Arguments: none
This command returns true if the command@*
GCRYCTL_INITIALIZATION_FINISHED has already been run.
@item GCRYCTL_SET_THREAD_CBS; Arguments: struct ath_ops *ath_ops
This command registers a thread-callback structure.
@xref{Multi-Threading}.
@item GCRYCTL_FAST_POLL; Arguments: none
Run a fast random poll.
@item GCRYCTL_SET_RNDEGD_SOCKET; Arguments: const char *filename
This command may be used to override the default name of the EGD socket
to connect to. It may be used only during initialization as it is not
thread safe. Changing the socket name again is not supported. The
function may return an error if the given filename is too long for a
local socket name.
EGD is an alternative random gatherer, used only on systems lacking a
proper random device.
@item GCRYCTL_PRINT_CONFIG; Arguments: FILE *stream
This command dumps information pertaining to the configuration of the
library to the given stream. If NULL is given for @var{stream}, the log
system is used. This command may be used before the intialization has
been finished but not before a gcry_version_check.
@item GCRYCTL_OPERATIONAL_P; Arguments: none
This command returns true if the library is in an operational state.
This information makes only sense in FIPS mode. In contrast to other
functions, this is a pure test function and won't put the library into
FIPS mode or change the internal state. This command may be used before
the intialization has been finished but not before a gcry_version_check.
@item GCRYCTL_FIPS_MODE_P; Arguments: none
This command returns true if the library is in FIPS mode. Note, that
this is no indication about the current state of the library. This
command may be used before the intialization has been finished but not
before a gcry_version_check. An application may use this command or
the convenience macro below to check whether FIPS mode is actually
active.
@deftypefun int gcry_fips_mode_active (void)
Returns true if the FIPS mode is active. Note that this is
implemented as a macro.
@end deftypefun
@item GCRYCTL_FORCE_FIPS_MODE; Arguments: none
Running this command puts the library into FIPS mode. If the library is
already in FIPS mode, a self-test is triggered and thus the library will
be put into operational state. This command may be used before a call
to gcry_check_version and that is actually the recommended way to let an
application switch the library into FIPS mode. Note that Libgcrypt will
reject an attempt to switch to fips mode during or after the intialization.
@item GCRYCTL_SELFTEST; Arguments: none
This may be used at anytime to have the library run all implemented
self-tests. It works in standard and in FIPS mode. Returns 0 on
success or an error code on failure.
@end table
@end deftypefun
@node Modules
@section Modules
Libgcrypt supports the use of `extension modules', which
implement algorithms in addition to those already built into the library
directly.
@deftp {Data type} gcry_module_t
This data type represents a `module'.
@end deftp
Functions registering modules provided by the user take a `module
specification structure' as input and return a value of
@code{gcry_module_t} and an ID that is unique in the modules'
category. This ID can be used to reference the newly registered
module. After registering a module successfully, the new functionality
should be able to be used through the normal functions provided by
Libgcrypt until it is unregistered again.
@c **********************************************************
@c ******************* Errors ****************************
@c **********************************************************
@node Error Handling
@section Error Handling
Many functions in Libgcrypt can return an error if they
fail. For this reason, the application should always catch the error
condition and take appropriate measures, for example by releasing the
resources and passing the error up to the caller, or by displaying a
descriptive message to the user and cancelling the operation.
Some error values do not indicate a system error or an error in the
operation, but the result of an operation that failed properly. For
example, if you try to decrypt a tempered message, the decryption will
fail. Another error value actually means that the end of a data
buffer or list has been reached. The following descriptions explain
for many error codes what they mean usually. Some error values have
specific meanings if returned by a certain functions. Such cases are
described in the documentation of those functions.
Libgcrypt uses the @code{libgpg-error} library. This allows to share
the error codes with other components of the GnuPG system, and to pass
error values transparently from the crypto engine, or some helper
application of the crypto engine, to the user. This way no
information is lost. As a consequence, Libgcrypt does not use its own
identifiers for error codes, but uses those provided by
@code{libgpg-error}. They usually start with @code{GPG_ERR_}.
However, Libgcrypt does provide aliases for the functions
defined in libgpg-error, which might be preferred for name space
consistency.
Most functions in Libgcrypt return an error code in the case
of failure. For this reason, the application should always catch the
error condition and take appropriate measures, for example by
releasing the resources and passing the error up to the caller, or by
displaying a descriptive message to the user and canceling the
operation.
Some error values do not indicate a system error or an error in the
operation, but the result of an operation that failed properly.
GnuPG components, including Libgcrypt, use an extra library named
libgpg-error to provide a common error handling scheme. For more
information on libgpg-error, see the according manual.
@menu
* Error Values:: The error value and what it means.
* Error Sources:: A list of important error sources.
* Error Codes:: A list of important error codes.
* Error Strings:: How to get a descriptive string from a value.
@end menu
@node Error Values
@subsection Error Values
@cindex error values
@cindex error codes
@cindex error sources
@deftp {Data type} {gcry_err_code_t}
The @code{gcry_err_code_t} type is an alias for the
@code{libgpg-error} type @code{gpg_err_code_t}. The error code
indicates the type of an error, or the reason why an operation failed.
A list of important error codes can be found in the next section.
@end deftp
@deftp {Data type} {gcry_err_source_t}
The @code{gcry_err_source_t} type is an alias for the
@code{libgpg-error} type @code{gpg_err_source_t}. The error source
has not a precisely defined meaning. Sometimes it is the place where
the error happened, sometimes it is the place where an error was
encoded into an error value. Usually the error source will give an
indication to where to look for the problem. This is not always true,
but it is attempted to achieve this goal.
A list of important error sources can be found in the next section.
@end deftp
@deftp {Data type} {gcry_error_t}
The @code{gcry_error_t} type is an alias for the @code{libgpg-error}
type @code{gpg_error_t}. An error value like this has always two
components, an error code and an error source. Both together form the
error value.
Thus, the error value can not be directly compared against an error
code, but the accessor functions described below must be used.
However, it is guaranteed that only 0 is used to indicate success
(@code{GPG_ERR_NO_ERROR}), and that in this case all other parts of
the error value are set to 0, too.
Note that in Libgcrypt, the error source is used purely for
diagnostic purposes. Only the error code should be checked to test
for a certain outcome of a function. The manual only documents the
error code part of an error value. The error source is left
unspecified and might be anything.
@end deftp
@deftypefun {gcry_err_code_t} gcry_err_code (@w{gcry_error_t @var{err}})
The static inline function @code{gcry_err_code} returns the
@code{gcry_err_code_t} component of the error value @var{err}. This
function must be used to extract the error code from an error value in
order to compare it with the @code{GPG_ERR_*} error code macros.
@end deftypefun
@deftypefun {gcry_err_source_t} gcry_err_source (@w{gcry_error_t @var{err}})
The static inline function @code{gcry_err_source} returns the
@code{gcry_err_source_t} component of the error value @var{err}. This
function must be used to extract the error source from an error value in
order to compare it with the @code{GPG_ERR_SOURCE_*} error source macros.
@end deftypefun
@deftypefun {gcry_error_t} gcry_err_make (@w{gcry_err_source_t @var{source}}, @w{gcry_err_code_t @var{code}})
The static inline function @code{gcry_err_make} returns the error
value consisting of the error source @var{source} and the error code
@var{code}.
This function can be used in callback functions to construct an error
value to return it to the library.
@end deftypefun
@deftypefun {gcry_error_t} gcry_error (@w{gcry_err_code_t @var{code}})
The static inline function @code{gcry_error} returns the error value
consisting of the default error source and the error code @var{code}.
For @acronym{GCRY} applications, the default error source is
@code{GPG_ERR_SOURCE_USER_1}. You can define
@code{GCRY_ERR_SOURCE_DEFAULT} before including @file{gcrypt.h} to
change this default.
This function can be used in callback functions to construct an error
value to return it to the library.
@end deftypefun
The @code{libgpg-error} library provides error codes for all system
error numbers it knows about. If @var{err} is an unknown error
number, the error code @code{GPG_ERR_UNKNOWN_ERRNO} is used. The
following functions can be used to construct error values from system
errno numbers.
@deftypefun {gcry_error_t} gcry_err_make_from_errno (@w{gcry_err_source_t @var{source}}, @w{int @var{err}})
The function @code{gcry_err_make_from_errno} is like
@code{gcry_err_make}, but it takes a system error like @code{errno}
instead of a @code{gcry_err_code_t} error code.
@end deftypefun
@deftypefun {gcry_error_t} gcry_error_from_errno (@w{int @var{err}})
The function @code{gcry_error_from_errno} is like @code{gcry_error},
but it takes a system error like @code{errno} instead of a
@code{gcry_err_code_t} error code.
@end deftypefun
Sometimes you might want to map system error numbers to error codes
directly, or map an error code representing a system error back to the
system error number. The following functions can be used to do that.
@deftypefun {gcry_err_code_t} gcry_err_code_from_errno (@w{int @var{err}})
The function @code{gcry_err_code_from_errno} returns the error code
for the system error @var{err}. If @var{err} is not a known system
error, the function returns @code{GPG_ERR_UNKNOWN_ERRNO}.
@end deftypefun
@deftypefun {int} gcry_err_code_to_errno (@w{gcry_err_code_t @var{err}})
The function @code{gcry_err_code_to_errno} returns the system error
for the error code @var{err}. If @var{err} is not an error code
representing a system error, or if this system error is not defined on
this system, the function returns @code{0}.
@end deftypefun
@node Error Sources
@subsection Error Sources
@cindex error codes, list of
The library @code{libgpg-error} defines an error source for every
component of the GnuPG system. The error source part of an error
value is not well defined. As such it is mainly useful to improve the
diagnostic error message for the user.
If the error code part of an error value is @code{0}, the whole error
value will be @code{0}. In this case the error source part is of
course @code{GPG_ERR_SOURCE_UNKNOWN}.
The list of error sources that might occur in applications using
@acronym{Libgcrypt} is:
@table @code
@item GPG_ERR_SOURCE_UNKNOWN
The error source is not known. The value of this error source is
@code{0}.
@item GPG_ERR_SOURCE_GPGME
The error source is @acronym{GPGME} itself.
@item GPG_ERR_SOURCE_GPG
The error source is GnuPG, which is the crypto engine used for the
OpenPGP protocol.
@item GPG_ERR_SOURCE_GPGSM
The error source is GPGSM, which is the crypto engine used for the
OpenPGP protocol.
@item GPG_ERR_SOURCE_GCRYPT
The error source is @code{libgcrypt}, which is used by crypto engines
to perform cryptographic operations.
@item GPG_ERR_SOURCE_GPGAGENT
The error source is @command{gpg-agent}, which is used by crypto
engines to perform operations with the secret key.
@item GPG_ERR_SOURCE_PINENTRY
The error source is @command{pinentry}, which is used by
@command{gpg-agent} to query the passphrase to unlock a secret key.
@item GPG_ERR_SOURCE_SCD
The error source is the SmartCard Daemon, which is used by
@command{gpg-agent} to delegate operations with the secret key to a
SmartCard.
@item GPG_ERR_SOURCE_KEYBOX
The error source is @code{libkbx}, a library used by the crypto
engines to manage local keyrings.
@item GPG_ERR_SOURCE_USER_1
@item GPG_ERR_SOURCE_USER_2
@item GPG_ERR_SOURCE_USER_3
@item GPG_ERR_SOURCE_USER_4
These error sources are not used by any GnuPG component and can be
used by other software. For example, applications using
Libgcrypt can use them to mark error values coming from callback
handlers. Thus @code{GPG_ERR_SOURCE_USER_1} is the default for errors
created with @code{gcry_error} and @code{gcry_error_from_errno},
unless you define @code{GCRY_ERR_SOURCE_DEFAULT} before including
@file{gcrypt.h}.
@end table
@node Error Codes
@subsection Error Codes
@cindex error codes, list of
The library @code{libgpg-error} defines many error values. The
following list includes the most important error codes.
@table @code
@item GPG_ERR_EOF
This value indicates the end of a list, buffer or file.
@item GPG_ERR_NO_ERROR
This value indicates success. The value of this error code is
@code{0}. Also, it is guaranteed that an error value made from the
error code @code{0} will be @code{0} itself (as a whole). This means
that the error source information is lost for this error code,
however, as this error code indicates that no error occurred, this is
generally not a problem.
@item GPG_ERR_GENERAL
This value means that something went wrong, but either there is not
enough information about the problem to return a more useful error
value, or there is no separate error value for this type of problem.
@item GPG_ERR_ENOMEM
This value means that an out-of-memory condition occurred.
@item GPG_ERR_E...
System errors are mapped to GPG_ERR_EFOO where FOO is the symbol for
the system error.
@item GPG_ERR_INV_VALUE
This value means that some user provided data was out of range.
@item GPG_ERR_UNUSABLE_PUBKEY
This value means that some recipients for a message were invalid.
@item GPG_ERR_UNUSABLE_SECKEY
This value means that some signers were invalid.
@item GPG_ERR_NO_DATA
This value means that data was expected where no data was found.
@item GPG_ERR_CONFLICT
This value means that a conflict of some sort occurred.
@item GPG_ERR_NOT_IMPLEMENTED
This value indicates that the specific function (or operation) is not
implemented. This error should never happen. It can only occur if
you use certain values or configuration options which do not work,
but for which we think that they should work at some later time.
@item GPG_ERR_DECRYPT_FAILED
This value indicates that a decryption operation was unsuccessful.
@item GPG_ERR_WRONG_KEY_USAGE
This value indicates that a key is not used appropriately.
@item GPG_ERR_NO_SECKEY
This value indicates that no secret key for the user ID is available.
@item GPG_ERR_UNSUPPORTED_ALGORITHM
This value means a verification failed because the cryptographic
algorithm is not supported by the crypto backend.
@item GPG_ERR_BAD_SIGNATURE
This value means a verification failed because the signature is bad.
@item GPG_ERR_NO_PUBKEY
This value means a verification failed because the public key is not
available.
@item GPG_ERR_NOT_OPERATIONAL
This value means that the library is not yet in state which allows to
use this function. This error code is in particular returned if
Libgcrypt is operated in FIPS mode and the internal state of the
library does not yet or not anymore allow the use of a service.
This error code is only available with newer libgpg-error versions, thus
you might see ``invalid error code'' when passing this to
@code{gpg_strerror}. The numeric value of this error code is 176.
@item GPG_ERR_USER_1
@item GPG_ERR_USER_2
@item ...
@item GPG_ERR_USER_16
These error codes are not used by any GnuPG component and can be
freely used by other software. Applications using Libgcrypt
might use them to mark specific errors returned by callback handlers
if no suitable error codes (including the system errors) for these
errors exist already.
@end table
@node Error Strings
@subsection Error Strings
@cindex error values, printing of
@cindex error codes, printing of
@cindex error sources, printing of
@cindex error strings
@deftypefun {const char *} gcry_strerror (@w{gcry_error_t @var{err}})
The function @code{gcry_strerror} returns a pointer to a statically
allocated string containing a description of the error code contained
in the error value @var{err}. This string can be used to output a
diagnostic message to the user.
@end deftypefun
@deftypefun {const char *} gcry_strsource (@w{gcry_error_t @var{err}})
The function @code{gcry_strerror} returns a pointer to a statically
allocated string containing a description of the error source
contained in the error value @var{err}. This string can be used to
output a diagnostic message to the user.
@end deftypefun
The following example illustrates the use of the functions described
above:
@example
@{
gcry_cipher_hd_t handle;
gcry_error_t err = 0;
err = gcry_cipher_open (&handle, GCRY_CIPHER_AES,
GCRY_CIPHER_MODE_CBC, 0);
if (err)
@{
fprintf (stderr, "Failure: %s/%s\n",
gcry_strsource (err),
gcry_strerror (err));
@}
@}
@end example
@c **********************************************************
@c ******************* General ****************************
@c **********************************************************
@node Handler Functions
@chapter Handler Functions
Libgcrypt makes it possible to install so called `handler functions',
which get called by Libgcrypt in case of certain events.
@menu
* Progress handler:: Using a progress handler function.
* Allocation handler:: Using special memory allocation functions.
* Error handler:: Using error handler functions.
* Logging handler:: Using a special logging function.
@end menu
@node Progress handler
@section Progress handler
It is often useful to retrieve some feedback while long running
operations are performed.
@deftp {Data type} gcry_handler_progress_t
Progress handler functions have to be of the type
@code{gcry_handler_progress_t}, which is defined as:
@code{void (*gcry_handler_progress_t) (void *, const char *, int, int, int)}
@end deftp
The following function may be used to register a handler function for
this purpose.
@deftypefun void gcry_set_progress_handler (gcry_handler_progress_t @var{cb}, void *@var{cb_data})
This function installs @var{cb} as the `Progress handler' function.
It may be used only during initialization. @var{cb} must be defined
as follows:
@example
void
my_progress_handler (void *@var{cb_data}, const char *@var{what},
int @var{printchar}, int @var{current}, int @var{total})
@{
/* Do something. */
@}
@end example
A description of the arguments of the progress handler function follows.
@table @var
@item cb_data
The argument provided in the call to @code{gcry_set_progress_handler}.
@item what
A string identifying the type of the progress output. The following
values for @var{what} are defined:
@table @code
@item need_entropy
Not enough entropy is available. @var{total} holds the number of
required bytes.
@item primegen
Values for @var{printchar}:
@table @code
@item \n
Prime generated.
@item !
Need to refresh the pool of prime numbers.
@item <, >
Number of bits adjusted.
@item ^
Searching for a generator.
@item .
Fermat test on 10 candidates failed.
@item :
Restart with a new random value.
@item +
Rabin Miller test passed.
@end table
@end table
@end table
@end deftypefun
@node Allocation handler
@section Allocation handler
It is possible to make Libgcrypt use special memory
allocation functions instead of the built-in ones.
Memory allocation functions are of the following types:
@deftp {Data type} gcry_handler_alloc_t
This type is defined as: @code{void *(*gcry_handler_alloc_t) (size_t n)}.
@end deftp
@deftp {Data type} gcry_handler_secure_check_t
This type is defined as: @code{int *(*gcry_handler_secure_check_t) (const void *)}.
@end deftp
@deftp {Data type} gcry_handler_realloc_t
This type is defined as: @code{void *(*gcry_handler_realloc_t) (void *p, size_t n)}.
@end deftp
@deftp {Data type} gcry_handler_free_t
This type is defined as: @code{void *(*gcry_handler_free_t) (void *)}.
@end deftp
Special memory allocation functions can be installed with the
following function:
@deftypefun void gcry_set_allocation_handler (gcry_handler_alloc_t @var{func_alloc}, gcry_handler_alloc_t @var{func_alloc_secure}, gcry_handler_secure_check_t @var{func_secure_check}, gcry_handler_realloc_t @var{func_realloc}, gcry_handler_free_t @var{func_free})
Install the provided functions and use them instead of the built-in
functions for doing memory allocation. Using this function is in
general not recommended because the standard Libgcrypt allocation
functions are guaranteed to zeroize memory if needed.
This function may be used only during initialization and may not be
used in fips mode.
@end deftypefun
@node Error handler
@section Error handler
The following functions may be used to register handler functions that
are called by Libgcrypt in case certain error conditions occur. They
may and should be registered prior to calling @code{gcry_check_version}.
@deftp {Data type} gcry_handler_no_mem_t
This type is defined as: @code{int (*gcry_handler_no_mem_t) (void *, size_t, unsigned int)}
@end deftp
@deftypefun void gcry_set_outofcore_handler (gcry_handler_no_mem_t @var{func_no_mem}, void *@var{cb_data})
This function registers @var{func_no_mem} as `out-of-core handler',
which means that it will be called in the case of not having enough
memory available. The handler is called with 3 arguments: The first
one is the pointer @var{cb_data} as set with this function, the second
is the requested memory size and the last being a flag. If bit 0 of
the flag is set, secure memory has been requested. The handler should
either return true to indicate that Libgcrypt should try again
allocating memory or return false to let Libgcrypt use its default
fatal error handler.
@end deftypefun
@deftp {Data type} gcry_handler_error_t
This type is defined as: @code{void (*gcry_handler_error_t) (void *, int, const char *)}
@end deftp
@deftypefun void gcry_set_fatalerror_handler (gcry_handler_error_t @var{func_error}, void *@var{cb_data})
This function registers @var{func_error} as `error handler',
which means that it will be called in error conditions.
@end deftypefun
@node Logging handler
@section Logging handler
@deftp {Data type} gcry_handler_log_t
This type is defined as: @code{void (*gcry_handler_log_t) (void *, int, const char *, va_list)}
@end deftp
@deftypefun void gcry_set_log_handler (gcry_handler_log_t @var{func_log}, void *@var{cb_data})
This function registers @var{func_log} as `logging handler', which means
that it will be called in case Libgcrypt wants to log a message. This
function may and should be used prior to calling
@code{gcry_check_version}.
@end deftypefun
@c **********************************************************
@c ******************* Ciphers ****************************
@c **********************************************************
@c @include cipher-ref.texi
@node Symmetric cryptography
@chapter Symmetric cryptography
The cipher functions are used for symmetrical cryptography,
i.e. cryptography using a shared key. The programming model follows
an open/process/close paradigm and is in that similar to other
building blocks provided by Libgcrypt.
@menu
* Available ciphers:: List of ciphers supported by the library.
* Cipher modules:: How to work with cipher modules.
* Available cipher modes:: List of cipher modes supported by the library.
* Working with cipher handles:: How to perform operations related to cipher handles.
* General cipher functions:: General cipher functions independent of cipher handles.
@end menu
@node Available ciphers
@section Available ciphers
@table @code
@item GCRY_CIPHER_NONE
This is not a real algorithm but used by some functions as error return.
The value always evaluates to false.
@item GCRY_CIPHER_IDEA
@cindex IDEA
This is the IDEA algorithm. The constant is provided but there is
currently no implementation for it because the algorithm is patented.
@item GCRY_CIPHER_3DES
@cindex 3DES
@cindex Triple-DES
@cindex DES-EDE
@cindex Digital Encryption Standard
Triple-DES with 3 Keys as EDE. The key size of this algorithm is 168 but
you have to pass 192 bits because the most significant bits of each byte
are ignored.
@item GCRY_CIPHER_CAST5
@cindex CAST5
CAST128-5 block cipher algorithm. The key size is 128 bits.
@item GCRY_CIPHER_BLOWFISH
@cindex Blowfish
The blowfish algorithm. The current implementation allows only for a key
size of 128 bits.
@item GCRY_CIPHER_SAFER_SK128
Reserved and not currently implemented.
@item GCRY_CIPHER_DES_SK
Reserved and not currently implemented.
@item GCRY_CIPHER_AES
@itemx GCRY_CIPHER_AES128
@itemx GCRY_CIPHER_RIJNDAEL
@itemx GCRY_CIPHER_RIJNDAEL128
@cindex Rijndael
@cindex AES
@cindex Advanced Encryption Standard
AES (Rijndael) with a 128 bit key.
@item GCRY_CIPHER_AES192
@itemx GCRY_CIPHER_RIJNDAEL192
AES (Rijndael) with a 192 bit key.
@item GCRY_CIPHER_AES256
@itemx GCRY_CIPHER_RIJNDAEL256
AES (Rijndael) with a 256 bit key.
@item GCRY_CIPHER_TWOFISH
@cindex Twofish
The Twofish algorithm with a 256 bit key.
@item GCRY_CIPHER_TWOFISH128
The Twofish algorithm with a 128 bit key.
@item GCRY_CIPHER_ARCFOUR
@cindex Arcfour
@cindex RC4
An algorithm which is 100% compatible with RSA Inc.'s RC4 algorithm.
Note that this is a stream cipher and must be used very carefully to
avoid a couple of weaknesses.
@item GCRY_CIPHER_DES
@cindex DES
Standard DES with a 56 bit key. You need to pass 64 bit but the high
bits of each byte are ignored. Note, that this is a weak algorithm
which can be broken in reasonable time using a brute force approach.
@item GCRY_CIPHER_SERPENT128
@itemx GCRY_CIPHER_SERPENT192
@itemx GCRY_CIPHER_SERPENT256
@cindex Serpent
The Serpent cipher from the AES contest.
@item GCRY_CIPHER_RFC2268_40
@itemx GCRY_CIPHER_RFC2268_128
@cindex rfc-2268
@cindex RC2
Ron's Cipher 2 in the 40 and 128 bit variants. Note, that we currently
only support the 40 bit variant. The identifier for 128 is reserved for
future use.
@item GCRY_CIPHER_SEED
@cindex Seed (cipher)
A 128 bit cipher as described by RFC4269.
@item GCRY_CIPHER_CAMELLIA128
@itemx GCRY_CIPHER_CAMELLIA192
@itemx GCRY_CIPHER_CAMELLIA256
@cindex Camellia
The Camellia cipher by NTT. See
@uref{http://info.isl.ntt.co.jp/@/crypt/@/eng/@/camellia/@/specifications.html}.
@end table
@node Cipher modules
@section Cipher modules
Libgcrypt makes it possible to load additional `cipher modules'; these
ciphers can be used just like the cipher algorithms that are built
into the library directly. For an introduction into extension
modules, see @xref{Modules}.
@deftp {Data type} gcry_cipher_spec_t
This is the `module specification structure' needed for registering
cipher modules, which has to be filled in by the user before it can be
used to register a module. It contains the following members:
@table @code
@item const char *name
The primary name of the algorithm.
@item const char **aliases
A list of strings that are `aliases' for the algorithm. The list must
be terminated with a NULL element.
@item gcry_cipher_oid_spec_t *oids
A list of OIDs that are to be associated with the algorithm. The
list's last element must have it's `oid' member set to NULL. See
below for an explanation of this type.
@item size_t blocksize
The block size of the algorithm, in bytes.
@item size_t keylen
The length of the key, in bits.
@item size_t contextsize
The size of the algorithm-specific `context', that should be allocated
for each handle.
@item gcry_cipher_setkey_t setkey
The function responsible for initializing a handle with a provided
key. See below for a description of this type.
@item gcry_cipher_encrypt_t encrypt
The function responsible for encrypting a single block. See below for
a description of this type.
@item gcry_cipher_decrypt_t decrypt
The function responsible for decrypting a single block. See below for
a description of this type.
@item gcry_cipher_stencrypt_t stencrypt
Like `encrypt', for stream ciphers. See below for a description of
this type.
@item gcry_cipher_stdecrypt_t stdecrypt
Like `decrypt', for stream ciphers. See below for a description of
this type.
@end table
@end deftp
@deftp {Data type} gcry_cipher_oid_spec_t
This type is used for associating a user-provided algorithm
implementation with certain OIDs. It contains the following members:
@table @code
@item const char *oid
Textual representation of the OID.
@item int mode
Cipher mode for which this OID is valid.
@end table
@end deftp
@deftp {Data type} gcry_cipher_setkey_t
Type for the `setkey' function, defined as: gcry_err_code_t
(*gcry_cipher_setkey_t) (void *c, const unsigned char *key, unsigned
keylen)
@end deftp
@deftp {Data type} gcry_cipher_encrypt_t
Type for the `encrypt' function, defined as: gcry_err_code_t
(*gcry_cipher_encrypt_t) (void *c, const unsigned char *outbuf, const
unsigned char *inbuf)
@end deftp
@deftp {Data type} gcry_cipher_decrypt_t
Type for the `decrypt' function, defined as: gcry_err_code_t
(*gcry_cipher_decrypt_t) (void *c, const unsigned char *outbuf, const
unsigned char *inbuf)
@end deftp
@deftp {Data type} gcry_cipher_stencrypt_t
Type for the `stencrypt' function, defined as: gcry_err_code_t
(*gcry_@/cipher_@/stencrypt_@/t) (void *c, const unsigned char *outbuf, const
unsigned char *, unsigned int n)
@end deftp
@deftp {Data type} gcry_cipher_stdecrypt_t
Type for the `stdecrypt' function, defined as: gcry_err_code_t
(*gcry_@/cipher_@/stdecrypt_@/t) (void *c, const unsigned char *outbuf, const
unsigned char *, unsigned int n)
@end deftp
@deftypefun gcry_error_t gcry_cipher_register (gcry_cipher_spec_t *@var{cipher}, unsigned int *algorithm_id, gcry_module_t *@var{module})
Register a new cipher module whose specification can be found in
@var{cipher}. On success, a new algorithm ID is stored in
@var{algorithm_id} and a pointer representing this module is stored
in @var{module}.
@end deftypefun
@deftypefun void gcry_cipher_unregister (gcry_module_t @var{module})
Unregister the cipher identified by @var{module}, which must have been
registered with gcry_cipher_register.
@end deftypefun
@deftypefun gcry_error_t gcry_cipher_list (int *@var{list}, int *@var{list_length})
Get a list consisting of the IDs of the loaded cipher modules. If
@var{list} is zero, write the number of loaded cipher modules to
@var{list_length} and return. If @var{list} is non-zero, the first
*@var{list_length} algorithm IDs are stored in @var{list}, which must
be of according size. In case there are less cipher modules than
*@var{list_length}, *@var{list_length} is updated to the correct
number.
@end deftypefun
@node Available cipher modes
@section Available cipher modes
@table @code
@item GCRY_CIPHER_MODE_NONE
No mode specified. This should not be used. The only exception is that
if Libgcrypt is not used in FIPS mode and if any debug flag has been
set, this mode may be used to bypass the actual encryption.
@item GCRY_CIPHER_MODE_ECB
@cindex ECB, Electronic Codebook mode
Electronic Codebook mode.
@item GCRY_CIPHER_MODE_CFB
@cindex CFB, Cipher Feedback mode
Cipher Feedback mode. The shift size equals the block size of the
cipher (e.g. for AES it is CFB-128).
@item GCRY_CIPHER_MODE_CBC
@cindex CBC, Cipher Block Chaining mode
Cipher Block Chaining mode.
@item GCRY_CIPHER_MODE_STREAM
Stream mode, only to be used with stream cipher algorithms.
@item GCRY_CIPHER_MODE_OFB
@cindex OFB, Output Feedback mode
Output Feedback mode.
@item GCRY_CIPHER_MODE_CTR
@cindex CTR, Counter mode
Counter mode.
@item GCRY_CIPHER_MODE_AESWRAP
@cindex AES-Wrap mode
This mode is used to implement the AES-Wrap algorithm according to
RFC-3394. It may be used with any 128 bit block length algorithm,
however the specs require one of the 3 AES algorithms. These special
conditions apply: If @code{gcry_cipher_setiv} has not been used the
standard IV is used; if it has been used the lower 64 bit of the IV
are used as the Alternative Initial Value. On encryption the provided
output buffer must be 64 bit (8 byte) larger than the input buffer;
in-place encryption is still allowed. On decryption the output buffer
may be specified 64 bit (8 byte) shorter than then input buffer. As
per specs the input length must be at least 128 bits and the length
must be a multiple of 64 bits.
@end table
@node Working with cipher handles
@section Working with cipher handles
To use a cipher algorithm, you must first allocate an according
handle. This is to be done using the open function:
@deftypefun gcry_error_t gcry_cipher_open (gcry_cipher_hd_t *@var{hd}, int @var{algo}, int @var{mode}, unsigned int @var{flags})
This function creates the context handle required for most of the
other cipher functions and returns a handle to it in `hd'. In case of
an error, an according error code is returned.
The ID of algorithm to use must be specified via @var{algo}. See
@xref{Available ciphers}, for a list of supported ciphers and the
according constants.
Besides using the constants directly, the function
@code{gcry_cipher_map_name} may be used to convert the textual name of
an algorithm into the according numeric ID.
The cipher mode to use must be specified via @var{mode}. See
@xref{Available cipher modes}, for a list of supported cipher modes
and the according constants. Note that some modes are incompatible
with some algorithms - in particular, stream mode
(@code{GCRY_CIPHER_MODE_STREAM}) only works with stream ciphers. Any
block cipher mode (@code{GCRY_CIPHER_MODE_ECB},
@code{GCRY_CIPHER_MODE_CBC}, @code{GCRY_CIPHER_MODE_CFB},
@code{GCRY_CIPHER_MODE_OFB} or @code{GCRY_CIPHER_MODE_CTR}) will work
with any block cipher algorithm.
The third argument @var{flags} can either be passed as @code{0} or as
the bit-wise OR of the following constants.
@table @code
@item GCRY_CIPHER_SECURE
Make sure that all operations are allocated in secure memory. This is
useful when the key material is highly confidential.
@item GCRY_CIPHER_ENABLE_SYNC
@cindex sync mode (OpenPGP)
This flag enables the CFB sync mode, which is a special feature of
Libgcrypt's CFB mode implementation to allow for OpenPGP's CFB variant.
See @code{gcry_cipher_sync}.
@item GCRY_CIPHER_CBC_CTS
@cindex cipher text stealing
Enable cipher text stealing (CTS) for the CBC mode. Cannot be used
simultaneous as GCRY_CIPHER_CBC_MAC. CTS mode makes it possible to
transform data of almost arbitrary size (only limitation is that it
must be greater than the algorithm's block size).
@item GCRY_CIPHER_CBC_MAC
@cindex CBC-MAC
Compute CBC-MAC keyed checksums. This is the same as CBC mode, but
only output the last block. Cannot be used simultaneous as
GCRY_CIPHER_CBC_CTS.
@end table
@end deftypefun
Use the following function to release an existing handle:
@deftypefun void gcry_cipher_close (gcry_cipher_hd_t @var{h})
This function releases the context created by @code{gcry_cipher_open}.
It also zeroises all sensitive information associated with this cipher
handle.
@end deftypefun
In order to use a handle for performing cryptographic operations, a
`key' has to be set first:
@deftypefun gcry_error_t gcry_cipher_setkey (gcry_cipher_hd_t @var{h}, const void *@var{k}, size_t @var{l})
Set the key @var{k} used for encryption or decryption in the context
denoted by the handle @var{h}. The length @var{l} (in bytes) of the
key @var{k} must match the required length of the algorithm set for
this context or be in the allowed range for algorithms with variable
key size. The function checks this and returns an error if there is a
problem. A caller should always check for an error.
@end deftypefun
Most crypto modes requires an initialization vector (IV), which
usually is a non-secret random string acting as a kind of salt value.
The CTR mode requires a counter, which is also similar to a salt
value. To set the IV or CTR, use these functions:
@deftypefun gcry_error_t gcry_cipher_setiv (gcry_cipher_hd_t @var{h}, const void *@var{k}, size_t @var{l})
Set the initialization vector used for encryption or decryption. The
vector is passed as the buffer @var{K} of length @var{l} bytes and
copied to internal data structures. The function checks that the IV
matches the requirement of the selected algorithm and mode.
@end deftypefun
@deftypefun gcry_error_t gcry_cipher_setctr (gcry_cipher_hd_t @var{h}, const void *@var{c}, size_t @var{l})
Set the counter vector used for encryption or decryption. The counter
is passed as the buffer @var{c} of length @var{l} bytes and copied to
internal data structures. The function checks that the counter
matches the requirement of the selected algorithm (i.e., it must be
the same size as the block size).
@end deftypefun
@deftypefun gcry_error_t gcry_cipher_reset (gcry_cipher_hd_t @var{h})
Set the given handle's context back to the state it had after the last
call to gcry_cipher_setkey and clear the initialization vector.
Note that gcry_cipher_reset is implemented as a macro.
@end deftypefun
The actual encryption and decryption is done by using one of the
following functions. They may be used as often as required to process
all the data.
@deftypefun gcry_error_t gcry_cipher_encrypt (gcry_cipher_hd_t @var{h}, unsigned char *{out}, size_t @var{outsize}, const unsigned char *@var{in}, size_t @var{inlen})
@code{gcry_cipher_encrypt} is used to encrypt the data. This function
can either work in place or with two buffers. It uses the cipher
context already setup and described by the handle @var{h}. There are 2
ways to use the function: If @var{in} is passed as @code{NULL} and
@var{inlen} is @code{0}, in-place encryption of the data in @var{out} or
length @var{outsize} takes place. With @var{in} being not @code{NULL},
@var{inlen} bytes are encrypted to the buffer @var{out} which must have
at least a size of @var{inlen}. @var{outsize} must be set to the
allocated size of @var{out}, so that the function can check that there
is sufficient space. Note that overlapping buffers are not allowed.
Depending on the selected algorithms and encryption mode, the length of
the buffers must be a multiple of the block size.
The function returns @code{0} on success or an error code.
@end deftypefun
@deftypefun gcry_error_t gcry_cipher_decrypt (gcry_cipher_hd_t @var{h}, unsigned char *{out}, size_t @var{outsize}, const unsigned char *@var{in}, size_t @var{inlen})
@code{gcry_cipher_decrypt} is used to decrypt the data. This function
can either work in place or with two buffers. It uses the cipher
context already setup and described by the handle @var{h}. There are 2
ways to use the function: If @var{in} is passed as @code{NULL} and
@var{inlen} is @code{0}, in-place decryption of the data in @var{out} or
length @var{outsize} takes place. With @var{in} being not @code{NULL},
@var{inlen} bytes are decrypted to the buffer @var{out} which must have
at least a size of @var{inlen}. @var{outsize} must be set to the
allocated size of @var{out}, so that the function can check that there
is sufficient space. Note that overlapping buffers are not allowed.
Depending on the selected algorithms and encryption mode, the length of
the buffers must be a multiple of the block size.
The function returns @code{0} on success or an error code.
@end deftypefun
OpenPGP (as defined in RFC-2440) requires a special sync operation in
some places. The following function is used for this:
@deftypefun gcry_error_t gcry_cipher_sync (gcry_cipher_hd_t @var{h})
Perform the OpenPGP sync operation on context @var{h}. Note that this
is a no-op unless the context was created with the flag
@code{GCRY_CIPHER_ENABLE_SYNC}
@end deftypefun
Some of the described functions are implemented as macros utilizing a
catch-all control function. This control function is rarely used
directly but there is nothing which would inhibit it:
@deftypefun gcry_error_t gcry_cipher_ctl (gcry_cipher_hd_t @var{h}, int @var{cmd}, void *@var{buffer}, size_t @var{buflen})
@code{gcry_cipher_ctl} controls various aspects of the cipher module and
specific cipher contexts. Usually some more specialized functions or
macros are used for this purpose. The semantics of the function and its
parameters depends on the the command @var{cmd} and the passed context
handle @var{h}. Please see the comments in the source code
(@code{src/global.c}) for details.
@end deftypefun
@deftypefun gcry_error_t gcry_cipher_info (gcry_cipher_hd_t @var{h}, int @var{what}, void *@var{buffer}, size_t *@var{nbytes})
@code{gcry_cipher_info} is used to retrieve various
information about a cipher context or the cipher module in general.
Currently no information is available.
@end deftypefun
@node General cipher functions
@section General cipher functions
To work with the algorithms, several functions are available to map
algorithm names to the internal identifiers, as well as ways to
retrieve information about an algorithm or the current cipher context.
@deftypefun gcry_error_t gcry_cipher_algo_info (int @var{algo}, int @var{what}, void *@var{buffer}, size_t *@var{nbytes})
This function is used to retrieve information on a specific algorithm.
You pass the cipher algorithm ID as @var{algo} and the type of
information requested as @var{what}. The result is either returned as
the return code of the function or copied to the provided @var{buffer}
whose allocated length must be available in an integer variable with the
address passed in @var{nbytes}. This variable will also receive the
actual used length of the buffer.
Here is a list of supported codes for @var{what}:
@c begin constants for gcry_cipher_algo_info
@table @code
@item GCRYCTL_GET_KEYLEN:
Return the length of the key. If the algorithm supports multiple key
lengths, the maximum supported value is returned. The length is
returned as number of octets (bytes) and not as number of bits in
@var{nbytes}; @var{buffer} must be zero.
@item GCRYCTL_GET_BLKLEN:
Return the block length of the algorithm. The length is returned as a
number of octets in @var{nbytes}; @var{buffer} must be zero.
@item GCRYCTL_TEST_ALGO:
Returns @code{0} when the specified algorithm is available for use.
@var{buffer} and @var{nbytes} must be zero.
@end table
@c end constants for gcry_cipher_algo_info
@end deftypefun
@c end gcry_cipher_algo_info
@deftypefun {const char *} gcry_cipher_algo_name (int @var{algo})
@code{gcry_cipher_algo_name} returns a string with the name of the
cipher algorithm @var{algo}. If the algorithm is not known or another
error occurred, the string @code{"?"} is returned. This function should
not be used to test for the availability of an algorithm.
@end deftypefun
@deftypefun int gcry_cipher_map_name (const char *@var{name})
@code{gcry_cipher_map_name} returns the algorithm identifier for the
cipher algorithm described by the string @var{name}. If this algorithm
is not available @code{0} is returned.
@end deftypefun
@deftypefun int gcry_cipher_mode_from_oid (const char *@var{string})
Return the cipher mode associated with an @acronym{ASN.1} object
identifier. The object identifier is expected to be in the
@acronym{IETF}-style dotted decimal notation. The function returns
@code{0} for an unknown object identifier or when no mode is associated
with it.
@end deftypefun
@c **********************************************************
@c ******************* Public Key *************************
@c **********************************************************
@node Public Key cryptography
@chapter Public Key cryptography
Public key cryptography, also known as asymmetric cryptography, is an
easy way for key management and to provide digital signatures.
Libgcrypt provides two completely different interfaces to
public key cryptography, this chapter explains the one based on
S-expressions.
@menu
* Available algorithms:: Algorithms supported by the library.
* Used S-expressions:: Introduction into the used S-expression.
* Public key modules:: How to work with public key modules.
* Cryptographic Functions:: Functions for performing the cryptographic actions.
* General public-key related Functions:: General functions, not implementing any cryptography.
* AC Interface:: Alternative interface to public key functions.
@end menu
@node Available algorithms
@section Available algorithms
Libgcrypt supports the RSA (Rivest-Shamir-Adleman) algorithms as well
as DSA (Digital Signature Algorithm) and Elgamal. The versatile
interface allows to add more algorithms in the future.
@node Used S-expressions
@section Used S-expressions
Libgcrypt's API for asymmetric cryptography is based on data structures
called S-expressions (see
@uref{http://people.csail.mit.edu/@/rivest/@/sexp.html}) and does not work
with contexts as most of the other building blocks of Libgcrypt do.
@noindent
The following information are stored in S-expressions:
@itemize @asis
@item keys
@item plain text data
@item encrypted data
@item signatures
@end itemize
@noindent
To describe how Libgcrypt expect keys, we use examples. Note that
words in
@ifnottex
uppercase
@end ifnottex
@iftex
italics
@end iftex
indicate parameters whereas lowercase words are literals.
Note that all MPI (multi-precision-integers) values are expected to be in
@code{GCRYMPI_FMT_USG} format. An easy way to create S-expressions is
by using @code{gcry_sexp_build} which allows to pass a string with
printf-like escapes to insert MPI values.
@menu
* RSA key parameters:: Parameters used with an RSA key.
* DSA key parameters:: Parameters used with a DSA key.
* ECC key parameters:: Parameters used with ECC keys.
@end menu
@node RSA key parameters
@subsection RSA key parameters
@noindent
An RSA private key is described by this S-expression:
@example
(private-key
(rsa
(n @var{n-mpi})
(e @var{e-mpi})
(d @var{d-mpi})
(p @var{p-mpi})
(q @var{q-mpi})
(u @var{u-mpi})))
@end example
@noindent
An RSA public key is described by this S-expression:
@example
(public-key
(rsa
(n @var{n-mpi})
(e @var{e-mpi})))
@end example
@table @var
@item n-mpi
RSA public modulus @math{n}.
@item e-mpi
RSA public exponent @math{e}.
@item d-mpi
RSA secret exponent @math{d = e^{-1} \bmod (p-1)(q-1)}.
@item p-mpi
RSA secret prime @math{p}.
@item q-mpi
RSA secret prime @math{q} with @math{p < q}.
@item u-mpi
Multiplicative inverse @math{u = p^{-1} \bmod q}.
@end table
For signing and decryption the parameters @math{(p, q, u)} are optional
but greatly improve the performance. Either all of these optional
parameters must be given or none of them. They are mandatory for
gcry_pk_testkey.
Note that OpenSSL uses slighly different parameters: @math{q < p} and
@math{u = q^{-1} \bmod p}. To use these parameters you will need to
swap the values and recompute @math{u}. Here is example code to do this:
@example
if (gcry_mpi_cmp (p, q) > 0)
@{
gcry_mpi_swap (p, q);
gcry_mpi_invm (u, p, q);
@}
@end example
@node DSA key parameters
@subsection DSA key parameters
@noindent
A DSA private key is described by this S-expression:
@example
(private-key
(dsa
(p @var{p-mpi})
(q @var{q-mpi})
(g @var{g-mpi})
(y @var{y-mpi})
(x @var{x-mpi})))
@end example
@table @var
@item p-mpi
DSA prime @math{p}.
@item q-mpi
DSA group order @math{q} (which is a prime divisor of @math{p-1}).
@item g-mpi
DSA group generator @math{g}.
@item y-mpi
DSA public key value @math{y = g^x \bmod p}.
@item x-mpi
DSA secret exponent x.
@end table
The public key is similar with "private-key" replaced by "public-key"
and no @var{x-mpi}.
@node ECC key parameters
@subsection ECC key parameters
@noindent
An ECC private key is described by this S-expression:
@example
(private-key
(ecc
(p @var{p-mpi})
(a @var{a-mpi})
(b @var{b-mpi})
(g @var{g-point})
(n @var{n-mpi})
(q @var{q-point})
(d @var{d-mpi})))
@end example
@table @var
@item p-mpi
Prime specifying the field @math{GF(p)}.
@item a-mpi
@itemx b-mpi
The two coefficients of the Weierstrass equation @math{y^2 = x^3 + ax + b}
@item g-point
Base point @math{g}.
@item n-mpi
Order of @math{g}
@item q-point
The point representing the public key @math{Q = dP}.
@item d-mpi
The private key @math{d}
@end table
All point values are encoded in standard format; Libgcrypt does
currently only support uncompressed points, thus the first byte needs to
be @code{0x04}.
The public key is similar with "private-key" replaced by "public-key"
and no @var{d-mpi}.
If the domain parameters are well-known, the name of this curve may be
used. For example
@example
(private-key
(ecc
(curve "NIST P-192")
(q @var{q-point})
(d @var{d-mpi})))
@end example
The @code{curve} parameter may be given in any case and is used to replace
missing parameters.
@noindent
Currently implemented curves are:
@table @code
@item NIST P-192
@itemx 1.2.840.10045.3.1.1
@itemx prime192v1
@itemx secp192r1
The NIST 192 bit curve, its OID, X9.62 and SECP aliases.
@item NIST P-224
@itemx secp224r1
The NIST 224 bit curve and its SECP alias.
@item NIST P-256
@itemx 1.2.840.10045.3.1.7
@itemx prime256v1
@itemx secp256r1
The NIST 256 bit curve, its OID, X9.62 and SECP aliases.
@item NIST P-384
@itemx secp384r1
The NIST 384 bit curve and its SECP alias.
@item NIST P-521
@itemx secp521r1
The NIST 521 bit curve and its SECP alias.
@end table
As usual the OIDs may optionally be prefixed with the string @code{OID.}
or @code{oid.}.
@node Public key modules
@section Public key modules
Libgcrypt makes it possible to load additional `public key
modules'; these public key algorithms can be used just like the
algorithms that are built into the library directly. For an
introduction into extension modules, see @xref{Modules}.
@deftp {Data type} gcry_pk_spec_t
This is the `module specification structure' needed for registering
public key modules, which has to be filled in by the user before it
can be used to register a module. It contains the following members:
@table @code
@item const char *name
The primary name of this algorithm.
@item char **aliases
A list of strings that are `aliases' for the algorithm. The list
must be terminated with a NULL element.
@item const char *elements_pkey
String containing the one-letter names of the MPI values contained in
a public key.
@item const char *element_skey
String containing the one-letter names of the MPI values contained in
a secret key.
@item const char *elements_enc
String containing the one-letter names of the MPI values that are the
result of an encryption operation using this algorithm.
@item const char *elements_sig
String containing the one-letter names of the MPI values that are the
result of a sign operation using this algorithm.
@item const char *elements_grip
String containing the one-letter names of the MPI values that are to
be included in the `key grip'.
@item int use
The bitwise-OR of the following flags, depending on the abilities of
the algorithm:
@table @code
@item GCRY_PK_USAGE_SIGN
The algorithm supports signing and verifying of data.
@item GCRY_PK_USAGE_ENCR
The algorithm supports the encryption and decryption of data.
@end table
@item gcry_pk_generate_t generate
The function responsible for generating a new key pair. See below for
a description of this type.
@item gcry_pk_check_secret_key_t check_secret_key
The function responsible for checking the sanity of a provided secret
key. See below for a description of this type.
@item gcry_pk_encrypt_t encrypt
The function responsible for encrypting data. See below for a
description of this type.
@item gcry_pk_decrypt_t decrypt
The function responsible for decrypting data. See below for a
description of this type.
@item gcry_pk_sign_t sign
The function responsible for signing data. See below for a description
of this type.
@item gcry_pk_verify_t verify
The function responsible for verifying that the provided signature
matches the provided data. See below for a description of this type.
@item gcry_pk_get_nbits_t get_nbits
The function responsible for returning the number of bits of a provided
key. See below for a description of this type.
@end table
@end deftp
@deftp {Data type} gcry_pk_generate_t
Type for the `generate' function, defined as: gcry_err_code_t
(*gcry_pk_generate_t) (int algo, unsigned int nbits, unsigned long
use_e, gcry_mpi_t *skey, gcry_mpi_t **retfactors)
@end deftp
@deftp {Data type} gcry_pk_check_secret_key_t
Type for the `check_secret_key' function, defined as: gcry_err_code_t
(*gcry_pk_check_secret_key_t) (int algo, gcry_mpi_t *skey)
@end deftp
@deftp {Data type} gcry_pk_encrypt_t
Type for the `encrypt' function, defined as: gcry_err_code_t
(*gcry_pk_encrypt_t) (int algo, gcry_mpi_t *resarr, gcry_mpi_t data,
gcry_mpi_t *pkey, int flags)
@end deftp
@deftp {Data type} gcry_pk_decrypt_t
Type for the `decrypt' function, defined as: gcry_err_code_t
(*gcry_pk_decrypt_t) (int algo, gcry_mpi_t *result, gcry_mpi_t *data,
gcry_mpi_t *skey, int flags)
@end deftp
@deftp {Data type} gcry_pk_sign_t
Type for the `sign' function, defined as: gcry_err_code_t
(*gcry_pk_sign_t) (int algo, gcry_mpi_t *resarr, gcry_mpi_t data,
gcry_mpi_t *skey)
@end deftp
@deftp {Data type} gcry_pk_verify_t
Type for the `verify' function, defined as: gcry_err_code_t
(*gcry_pk_verify_t) (int algo, gcry_mpi_t hash, gcry_mpi_t *data,
gcry_mpi_t *pkey, int (*cmp) (void *, gcry_mpi_t), void *opaquev)
@end deftp
@deftp {Data type} gcry_pk_get_nbits_t
Type for the `get_nbits' function, defined as: unsigned
(*gcry_pk_get_nbits_t) (int algo, gcry_mpi_t *pkey)
@end deftp
@deftypefun gcry_error_t gcry_pk_register (gcry_pk_spec_t *@var{pubkey}, unsigned int *algorithm_id, gcry_module_t *@var{module})
Register a new public key module whose specification can be found in
@var{pubkey}. On success, a new algorithm ID is stored in
@var{algorithm_id} and a pointer representing this module is stored
in @var{module}.
@end deftypefun
@deftypefun void gcry_pk_unregister (gcry_module_t @var{module})
Unregister the public key module identified by @var{module}, which
must have been registered with gcry_pk_register.
@end deftypefun
@deftypefun gcry_error_t gcry_pk_list (int *@var{list}, int *@var{list_length})
Get a list consisting of the IDs of the loaded pubkey modules. If
@var{list} is zero, write the number of loaded pubkey modules to
@var{list_length} and return. If @var{list} is non-zero, the first
*@var{list_length} algorithm IDs are stored in @var{list}, which must
be of according size. In case there are less pubkey modules than
*@var{list_length}, *@var{list_length} is updated to the correct
number.
@end deftypefun
@node Cryptographic Functions
@section Cryptographic Functions
@noindent
Note that we will in future allow to use keys without p,q and u
specified and may also support other parameters for performance
reasons.
@noindent
Some functions operating on S-expressions support `flags', that
influence the operation. These flags have to be listed in a
sub-S-expression named `flags'; the following flags are known:
@table @code
@item pkcs1
Use PKCS#1 block type 2 padding.
@item no-blinding
Do not use a technique called `blinding', which is used by default in
order to prevent leaking of secret information. Blinding is only
implemented by RSA, but it might be implemented by other algorithms in
the future as well, when necessary.
@end table
@noindent
Now that we know the key basics, we can carry on and explain how to
encrypt and decrypt data. In almost all cases the data is a random
session key which is in turn used for the actual encryption of the real
data. There are 2 functions to do this:
@deftypefun gcry_error_t gcry_pk_encrypt (@w{gcry_sexp_t *@var{r_ciph},} @w{gcry_sexp_t @var{data},} @w{gcry_sexp_t @var{pkey}})
Obviously a public key must be provided for encryption. It is
expected as an appropriate S-expression (see above) in @var{pkey}.
The data to be encrypted can either be in the simple old format, which
is a very simple S-expression consisting only of one MPI, or it may be
a more complex S-expression which also allows to specify flags for
operation, like e.g. padding rules.
@noindent
If you don't want to let Libgcrypt handle the padding, you must pass an
appropriate MPI using this expression for @var{data}:
@example
(data
(flags raw)
(value @var{mpi}))
@end example
@noindent
This has the same semantics as the old style MPI only way. @var{MPI} is
the actual data, already padded appropriate for your protocol. Most
systems however use PKCS#1 padding and so you can use this S-expression
for @var{data}:
@example
(data
(flags pkcs1)
(value @var{block}))
@end example
@noindent
Here, the "flags" list has the "pkcs1" flag which let the function know
that it should provide PKCS#1 block type 2 padding. The actual data to
be encrypted is passed as a string of octets in @var{block}. The
function checks that this data actually can be used with the given key,
does the padding and encrypts it.
If the function could successfully perform the encryption, the return
value will be 0 and a new S-expression with the encrypted result is
allocated and assigned to the variable at the address of @var{r_ciph}.
The caller is responsible to release this value using
@code{gcry_sexp_release}. In case of an error, an error code is
returned and @var{r_ciph} will be set to @code{NULL}.
@noindent
The returned S-expression has this format when used with RSA:
@example
(enc-val
(rsa
(a @var{a-mpi})))
@end example
@noindent
Where @var{a-mpi} is an MPI with the result of the RSA operation. When
using the Elgamal algorithm, the return value will have this format:
@example
(enc-val
(elg
(a @var{a-mpi})
(b @var{b-mpi})))
@end example
@noindent
Where @var{a-mpi} and @var{b-mpi} are MPIs with the result of the
Elgamal encryption operation.
@end deftypefun
@c end gcry_pk_encrypt
@deftypefun gcry_error_t gcry_pk_decrypt (@w{gcry_sexp_t *@var{r_plain},} @w{gcry_sexp_t @var{data},} @w{gcry_sexp_t @var{skey}})
Obviously a private key must be provided for decryption. It is expected
as an appropriate S-expression (see above) in @var{skey}. The data to
be decrypted must match the format of the result as returned by
@code{gcry_pk_encrypt}, but should be enlarged with a @code{flags}
element:
@example
(enc-val
(flags)
(elg
(a @var{a-mpi})
(b @var{b-mpi})))
@end example
@noindent
Note that this function currently does not know of any padding
methods and the caller must do any un-padding on his own.
@noindent
The function returns 0 on success or an error code. The variable at the
address of @var{r_plain} will be set to NULL on error or receive the
decrypted value on success. The format of @var{r_plain} is a
simple S-expression part (i.e. not a valid one) with just one MPI if
there was no @code{flags} element in @var{data}; if at least an empty
@code{flags} is passed in @var{data}, the format is:
@example
(value @var{plaintext})
@end example
@end deftypefun
@c end gcry_pk_decrypt
Another operation commonly performed using public key cryptography is
signing data. In some sense this is even more important than
encryption because digital signatures are an important instrument for
key management. Libgcrypt supports digital signatures using
2 functions, similar to the encryption functions:
@deftypefun gcry_error_t gcry_pk_sign (@w{gcry_sexp_t *@var{r_sig},} @w{gcry_sexp_t @var{data},} @w{gcry_sexp_t @var{skey}})
This function creates a digital signature for @var{data} using the
private key @var{skey} and place it into the variable at the address of
@var{r_sig}. @var{data} may either be the simple old style S-expression
with just one MPI or a modern and more versatile S-expression which
allows to let Libgcrypt handle padding:
@example
(data
(flags pkcs1)
(hash @var{hash-algo} @var{block}))
@end example
@noindent
This example requests to sign the data in @var{block} after applying
PKCS#1 block type 1 style padding. @var{hash-algo} is a string with the
hash algorithm to be encoded into the signature, this may be any hash
algorithm name as supported by Libgcrypt. Most likely, this will be
"sha256" or "sha1". It is obvious that the length of @var{block} must
match the size of that message digests; the function checks that this
and other constraints are valid.
@noindent
If PKCS#1 padding is not required (because the caller does already
provide a padded value), either the old format or better the following
format should be used:
@example
(data
(flags raw)
(value @var{mpi}))
@end example
@noindent
Here, the data to be signed is directly given as an @var{MPI}.
@noindent
The signature is returned as a newly allocated S-expression in
@var{r_sig} using this format for RSA:
@example
(sig-val
(rsa
(s @var{s-mpi})))
@end example
Where @var{s-mpi} is the result of the RSA sign operation. For DSA the
S-expression returned is:
@example
(sig-val
(dsa
(r @var{r-mpi})
(s @var{s-mpi})))
@end example
Where @var{r-mpi} and @var{s-mpi} are the result of the DSA sign
operation. For Elgamal signing (which is slow, yields large numbers
and probably is not as secure as the other algorithms), the same format is
used with "elg" replacing "dsa".
@end deftypefun
@c end gcry_pk_sign
@noindent
The operation most commonly used is definitely the verification of a
signature. Libgcrypt provides this function:
@deftypefun gcry_error_t gcry_pk_verify (@w{gcry_sexp_t @var{sig}}, @w{gcry_sexp_t @var{data}}, @w{gcry_sexp_t @var{pkey}})
This is used to check whether the signature @var{sig} matches the
@var{data}. The public key @var{pkey} must be provided to perform this
verification. This function is similar in its parameters to
@code{gcry_pk_sign} with the exceptions that the public key is used
instead of the private key and that no signature is created but a
signature, in a format as created by @code{gcry_pk_sign}, is passed to
the function in @var{sig}.
@noindent
The result is 0 for success (i.e. the data matches the signature), or an
error code where the most relevant code is @code{GCRYERR_BAD_SIGNATURE}
to indicate that the signature does not match the provided data.
@end deftypefun
@c end gcry_pk_verify
@node General public-key related Functions
@section General public-key related Functions
@noindent
A couple of utility functions are available to retrieve the length of
the key, map algorithm identifiers and perform sanity checks:
@deftypefun {const char *} gcry_pk_algo_name (int @var{algo})
Map the public key algorithm id @var{algo} to a string representation of
the algorithm name. For unknown algorithms this functions returns the
string @code{"?"}. This function should not be used to test for the
availability of an algorithm.
@end deftypefun
@deftypefun int gcry_pk_map_name (const char *@var{name})
Map the algorithm @var{name} to a public key algorithm Id. Returns 0 if
the algorithm name is not known.
@end deftypefun
@deftypefun int gcry_pk_test_algo (int @var{algo})
Return 0 if the public key algorithm @var{algo} is available for use.
Note that this is implemented as a macro.
@end deftypefun
@deftypefun {unsigned int} gcry_pk_get_nbits (gcry_sexp_t @var{key})
Return what is commonly referred as the key length for the given
public or private in @var{key}.
@end deftypefun
@deftypefun {unsigned char *} gcry_pk_get_keygrip (@w{gcry_sexp_t @var{key}}, @w{unsigned char *@var{array}})
Return the so called "keygrip" which is the SHA-1 hash of the public key
parameters expressed in a way depended on the algorithm. @var{array}
must either provide space for 20 bytes or be @code{NULL}. In the latter
case a newly allocated array of that size is returned. On success a
pointer to the newly allocated space or to @var{array} is returned.
@code{NULL} is returned to indicate an error which is most likely an
unknown algorithm or one where a "keygrip" has not yet been defined.
The function accepts public or secret keys in @var{key}.
@end deftypefun
@deftypefun gcry_error_t gcry_pk_testkey (gcry_sexp_t @var{key})
Return zero if the private key @var{key} is `sane', an error code otherwise.
Note that it is not possible to check the `saneness' of a public key.
@end deftypefun
@deftypefun gcry_error_t gcry_pk_algo_info (@w{int @var{algo}}, @w{int @var{what}}, @w{void *@var{buffer}}, @w{size_t *@var{nbytes}})
Depending on the value of @var{what} return various information about
the public key algorithm with the id @var{algo}. Note that the
function returns @code{-1} on error and the actual error code must be
retrieved using the function @code{gcry_errno}. The currently defined
values for @var{what} are:
@table @code
@item GCRYCTL_TEST_ALGO:
Return 0 if the specified algorithm is available for use.
@var{buffer} must be @code{NULL}, @var{nbytes} may be passed as
@code{NULL} or point to a variable with the required usage of the
algorithm. This may be 0 for "don't care" or the bit-wise OR of these
flags:
@table @code
@item GCRY_PK_USAGE_SIGN
Algorithm is usable for signing.
@item GCRY_PK_USAGE_ENCR
Algorithm is usable for encryption.
@end table
Unless you need to test for the allowed usage, it is in general better
to use the macro gcry_pk_test_algo instead.
@item GCRYCTL_GET_ALGO_USAGE:
Return the usage flags for the given algorithm. An invalid algorithm
return 0. Disabled algorithms are ignored here because we
want to know whether the algorithm is at all capable of a certain usage.
@item GCRYCTL_GET_ALGO_NPKEY
Return the number of elements the public key for algorithm @var{algo}
consist of. Return 0 for an unknown algorithm.
@item GCRYCTL_GET_ALGO_NSKEY
Return the number of elements the private key for algorithm @var{algo}
consist of. Note that this value is always larger than that of the
public key. Return 0 for an unknown algorithm.
@item GCRYCTL_GET_ALGO_NSIGN
Return the number of elements a signature created with the algorithm
@var{algo} consists of. Return 0 for an unknown algorithm or for an
algorithm not capable of creating signatures.
@item GCRYCTL_GET_ALGO_NENC
Return the number of elements a encrypted message created with the algorithm
@var{algo} consists of. Return 0 for an unknown algorithm or for an
algorithm not capable of encryption.
@end table
@noindent
Please note that parameters not required should be passed as @code{NULL}.
@end deftypefun
@c end gcry_pk_algo_info
@deftypefun gcry_error_t gcry_pk_ctl (@w{int @var{cmd}}, @w{void *@var{buffer}}, @w{size_t @var{buflen}})
This is a general purpose function to perform certain control
operations. @var{cmd} controls what is to be done. The return value is
0 for success or an error code. Currently supported values for
@var{cmd} are:
@table @code
@item GCRYCTL_DISABLE_ALGO
Disable the algorithm given as an algorithm id in @var{buffer}.
@var{buffer} must point to an @code{int} variable with the algorithm id
and @var{buflen} must have the value @code{sizeof (int)}.
@end table
@end deftypefun
@c end gcry_pk_ctl
@noindent
Libgcrypt also provides a function to generate public key
pairs:
@deftypefun gcry_error_t gcry_pk_genkey (@w{gcry_sexp_t *@var{r_key}}, @w{gcry_sexp_t @var{parms}})
This function create a new public key pair using information given in
the S-expression @var{parms} and stores the private and the public key
in one new S-expression at the address given by @var{r_key}. In case of
an error, @var{r_key} is set to @code{NULL}. The return code is 0 for
success or an error code otherwise.
@noindent
Here is an example for @var{parms} to create an 2048 bit RSA key:
@example
(genkey
(rsa
(nbits 4:2048)))
@end example
@noindent
To create an Elgamal key, substitute "elg" for "rsa" and to create a DSA
key use "dsa". Valid ranges for the key length depend on the
algorithms; all commonly used key lengths are supported. Currently
supported parameters are:
@table @code
@item nbits
This is always required to specify the length of the key. The argument
is a string with a number in C-notation. The value should be a multiple
of 8.
@item curve @var{name}
For ECC a named curve may be used instead of giving the number of
requested bits. This allows to request a specific curve to override a
default selection Libgcrypt would have taken if @code{nbits} has been
given. The available names are listed with the description of the ECC
public key parameters.
@item rsa-use-e
This is only used with RSA to give a hint for the public exponent. The
value will be used as a base to test for a usable exponent. Some values
are special:
@table @samp
@item 0
Use a secure and fast value. This is currently the number 41.
@item 1
Use a value as required by some crypto policies. This is currently
the number 65537.
@item 2
Reserved
@item > 2
Use the given value.
@end table
@noindent
If this parameter is not used, Libgcrypt uses for historic reasons
65537.
@item qbits
This is only meanigful for DSA keys. If it is given the DSA key is
generated with a Q parameyer of this size. If it is not given or zero
Q is deduced from NBITS in this way:
@table @samp
@item 512 <= N <= 1024
Q = 160
@item N = 2048
Q = 224
@item N = 3072
Q = 256
@item N = 7680
Q = 384
@item N = 15360
Q = 512
@end table
Note that in this case only the values for N, as given in the table,
are allowed. When specifying Q all values of N in the range 512 to
15680 are valid as long as they are multiples of 8.
@item transient-key
This is only meaningful for RSA and DSA keys. This is a flag with no
value. If given the RSA or DSA key is created using a faster and a
somewhat less secure random number generator. This flag may be used
for keys which are only used for a short time and do not require full
cryptographic strength.
@item domain
This is only meaningful for DLP algorithms. If specified keys are
generated with domain parameters taken from this list. The exact
format of this parameter depends on the actual algorithm. It is
currently only implemented for DSA using this format:
@example
(genkey
(dsa
(domain
(p @var{p-mpi})
(q @var{q-mpi})
(g @var{q-mpi}))))
@end example
@code{nbits} and @code{qbits} may not be specified because they are
derived from the domain parameters.
@item derive-parms
This is currently only implemented for RSA and DSA keys. It is not
allowed to use this together with a @code{domain} specification. If
given, it is used to derive the keys using the given parameters.
If given for an RSA key the X9.31 key generation algorithm is used
even if libgcrypt is not in FIPS mode. If given for a DSA key, the
FIPS 186 algorithm is used even if libgcrypt is not in FIPS mode.
@example
(genkey
(rsa
(nbits 4:1024)
(rsa-use-e 1:3)
(derive-parms
(Xp1 #1A1916DDB29B4EB7EB6732E128#)
(Xp2 #192E8AAC41C576C822D93EA433#)
(Xp #D8CD81F035EC57EFE822955149D3BFF70C53520D
769D6D76646C7A792E16EBD89FE6FC5B605A6493
39DFC925A86A4C6D150B71B9EEA02D68885F5009
B98BD984#)
(Xq1 #1A5CF72EE770DE50CB09ACCEA9#)
(Xq2 #134E4CAA16D2350A21D775C404#)
(Xq #CC1092495D867E64065DEE3E7955F2EBC7D47A2D
7C9953388F97DDDC3E1CA19C35CA659EDC2FC325
6D29C2627479C086A699A49C4C9CEE7EF7BD1B34
321DE34A#))))
@end example
@example
(genkey
(dsa
(nbits 4:1024)
(derive-parms
(seed @var{seed-mpi}))))
@end example
@item use-x931
@cindex X9.31
Force the use of the ANSI X9.31 key generation algorithm instead of
the default algorithm. This flag is only meaningful for RSA and
usually not required. Note that this algorithm is implicitly used if
either @code{derive-parms} is given or Libgcrypt is in FIPS mode.
@item use-fips186
@cindex FIPS 186
Force the use of the FIPS 186 key generation algorithm instead of the
default algorithm. This flag is only meaningful for DSA and usually
not required. Note that this algorithm is implicitly used if either
@code{derive-parms} is given or Libgcrypt is in FIPS mode. As of now
FIPS 186-2 is implemented; after the approval of FIPS 186-3 the code
will be changed to implement 186-3.
@item use-fips186-2
Force the use of the FIPS 186-2 key generation algorithm instead of
the default algorithm. This algorithm is slighlty different from
FIPS 186-3 and allows only 1024 bit keys. This flag is only meaningful
for DSA and only required for FIPS testing backward compatibility.
@end table
@c end table of parameters
@noindent
The key pair is returned in a format depending on the algorithm. Both
private and public keys are returned in one container and may be
accompanied by some miscellaneous information.
@noindent
As an example, here is what the Elgamal key generation returns:
@example
(key-data
(public-key
(elg
(p @var{p-mpi})
(g @var{g-mpi})
(y @var{y-mpi})))
(private-key
(elg
(p @var{p-mpi})
(g @var{g-mpi})
(y @var{y-mpi})
(x @var{x-mpi})))
(misc-key-info
(pm1-factors @var{n1 n2 ... nn}))
@end example
@noindent
As you can see, some of the information is duplicated, but this
provides an easy way to extract either the public or the private key.
Note that the order of the elements is not defined, e.g. the private
key may be stored before the public key. @var{n1 n2 ... nn} is a list
of prime numbers used to composite @var{p-mpi}; this is in general not
a very useful information and only available if the key generation
algorithm provides them.
@end deftypefun
@c end gcry_pk_genkey
@node AC Interface
@section Alternative Public Key Interface
This section documents the alternative interface to asymmetric
cryptography (ac) that is not based on S-expressions, but on native C
data structures. As opposed to the pk interface described in the
former chapter, this one follows an open/use/close paradigm like other
building blocks of the library.
@strong{This interface has a few known problems; most noteworthy an
inherent tendency to leak memory. It might not be available in
forthcoming versions of Libgcrypt.}
@menu
* Available asymmetric algorithms:: List of algorithms supported by the library.
* Working with sets of data:: How to work with sets of data.
* Working with IO objects:: How to work with IO objects.
* Working with handles:: How to use handles.
* Working with keys:: How to work with keys.
* Using cryptographic functions:: How to perform cryptographic operations.
* Handle-independent functions:: General functions independent of handles.
@end menu
@node Available asymmetric algorithms
@subsection Available asymmetric algorithms
Libgcrypt supports the RSA (Rivest-Shamir-Adleman)
algorithms as well as DSA (Digital Signature Algorithm) and Elgamal.
The versatile interface allows to add more algorithms in the future.
@deftp {Data type} gcry_ac_id_t
The following constants are defined for this type:
@table @code
@item GCRY_AC_RSA
Rivest-Shamir-Adleman
@item GCRY_AC_DSA
Digital Signature Algorithm
@item GCRY_AC_ELG
Elgamal
@item GCRY_AC_ELG_E
Elgamal, encryption only.
@end table
@end deftp
@node Working with sets of data
@subsection Working with sets of data
In the context of this interface the term `data set' refers to a list
of `named MPI values' that is used by functions performing
cryptographic operations; a named MPI value is a an MPI value,
associated with a label.
Such data sets are used for representing keys, since keys simply
consist of a variable amount of numbers. Furthermore some functions
return data sets to the caller that are to be provided to other
functions.
This section documents the data types, symbols and functions that are
relevant for working with data sets.
@deftp {Data type} gcry_ac_data_t
A single data set.
@end deftp
The following flags are supported:
@table @code
@item GCRY_AC_FLAG_DEALLOC
Used for storing data in a data set. If given, the data will be
released by the library. Note that whenever one of the ac functions
is about to release objects because of this flag, the objects are
expected to be stored in memory allocated through the Libgcrypt memory
management. In other words: gcry_free() is used instead of free().
@item GCRY_AC_FLAG_COPY
Used for storing/retrieving data in/from a data set. If given, the
library will create copies of the provided/contained data, which will
then be given to the user/associated with the data set.
@end table
@deftypefun gcry_error_t gcry_ac_data_new (gcry_ac_data_t *@var{data})
Creates a new, empty data set and stores it in @var{data}.
@end deftypefun
@deftypefun void gcry_ac_data_destroy (gcry_ac_data_t @var{data})
Destroys the data set @var{data}.
@end deftypefun
@deftypefun gcry_error_t gcry_ac_data_set (gcry_ac_data_t @var{data}, unsigned int @var{flags}, char *@var{name}, gcry_mpi_t @var{mpi})
Add the value @var{mpi} to @var{data} with the label @var{name}. If
@var{flags} contains GCRY_AC_FLAG_COPY, the data set will contain
copies of @var{name} and @var{mpi}. If @var{flags} contains
GCRY_AC_FLAG_DEALLOC or GCRY_AC_FLAG_COPY, the values
contained in the data set will be deallocated when they are to be
removed from the data set.
@end deftypefun
@deftypefun gcry_error_t gcry_ac_data_copy (gcry_ac_data_t *@var{data_cp}, gcry_ac_data_t @var{data})
Create a copy of the data set @var{data} and store it in
@var{data_cp}. FIXME: exact semantics undefined.
@end deftypefun
@deftypefun {unsigned int} gcry_ac_data_length (gcry_ac_data_t @var{data})
Returns the number of named MPI values inside of the data set
@var{data}.
@end deftypefun
@deftypefun gcry_error_t gcry_ac_data_get_name (gcry_ac_data_t @var{data}, unsigned int @var{flags}, char *@var{name}, gcry_mpi_t *@var{mpi})
Store the value labelled with @var{name} found in @var{data} in
@var{mpi}. If @var{flags} contains GCRY_AC_FLAG_COPY, store a copy of
the @var{mpi} value contained in the data set. @var{mpi} may be NULL
(this might be useful for checking the existence of an MPI with
extracting it).
@end deftypefun
@deftypefun gcry_error_t gcry_ac_data_get_index (gcry_ac_data_t @var{data}, unsigned int flags, unsigned int @var{index}, const char **@var{name}, gcry_mpi_t *@var{mpi})
Stores in @var{name} and @var{mpi} the named @var{mpi} value contained
in the data set @var{data} with the index @var{idx}. If @var{flags}
contains GCRY_AC_FLAG_COPY, store copies of the values contained in
the data set. @var{name} or @var{mpi} may be NULL.
@end deftypefun
@deftypefun void gcry_ac_data_clear (gcry_ac_data_t @var{data})
Destroys any values contained in the data set @var{data}.
@end deftypefun
@deftypefun gcry_error_t gcry_ac_data_to_sexp (gcry_ac_data_t @var{data}, gcry_sexp_t *@var{sexp}, const char **@var{identifiers})
This function converts the data set @var{data} into a newly created
S-Expression, which is to be stored in @var{sexp}; @var{identifiers}
is a NULL terminated list of C strings, which specifies the structure
of the S-Expression.
Example:
If @var{identifiers} is a list of pointers to the strings ``foo'' and
``bar'' and if @var{data} is a data set containing the values ``val1 =
0x01'' and ``val2 = 0x02'', then the resulting S-Expression will look
like this: (foo (bar ((val1 0x01) (val2 0x02))).
@end deftypefun
@deftypefun gcry_error gcry_ac_data_from_sexp (gcry_ac_data_t *@var{data}, gcry_sexp_t @var{sexp}, const char **@var{identifiers})
This function converts the S-Expression @var{sexp} into a newly
created data set, which is to be stored in @var{data};
@var{identifiers} is a NULL terminated list of C strings, which
specifies the structure of the S-Expression. If the list of
identifiers does not match the structure of the S-Expression, the
function fails.
@end deftypefun
@node Working with IO objects
@subsection Working with IO objects
Note: IO objects are currently only used in the context of message
encoding/decoding and encryption/signature schemes.
@deftp {Data type} {gcry_ac_io_t}
@code{gcry_ac_io_t} is the type to be used for IO objects.
@end deftp
IO objects provide an uniform IO layer on top of different underlying
IO mechanisms; either they can be used for providing data to the
library (mode is GCRY_AC_IO_READABLE) or they can be used for
retrieving data from the library (mode is GCRY_AC_IO_WRITABLE).
IO object need to be initialized by calling on of the following
functions:
@deftypefun void gcry_ac_io_init (gcry_ac_io_t *@var{ac_io}, gcry_ac_io_mode_t @var{mode}, gcry_ac_io_type_t @var{type}, ...);
Initialize @var{ac_io} according to @var{mode}, @var{type} and the
variable list of arguments. The list of variable arguments to specify
depends on the given @var{type}.
@end deftypefun
@deftypefun void gcry_ac_io_init_va (gcry_ac_io_t *@var{ac_io}, gcry_ac_io_mode_t @var{mode}, gcry_ac_io_type_t @var{type}, va_list @var{ap});
Initialize @var{ac_io} according to @var{mode}, @var{type} and the
variable list of arguments @var{ap}. The list of variable arguments
to specify depends on the given @var{type}.
@end deftypefun
The following types of IO objects exist:
@table @code
@item GCRY_AC_IO_STRING
In case of GCRY_AC_IO_READABLE the IO object will provide data from a
memory string. Arguments to specify at initialization time:
@table @code
@item unsigned char *
Pointer to the beginning of the memory string
@item size_t
Size of the memory string
@end table
In case of GCRY_AC_IO_WRITABLE the object will store retrieved data in
a newly allocated memory string. Arguments to specify at
initialization time:
@table @code
@item unsigned char **
Pointer to address, at which the pointer to the newly created memory
string is to be stored
@item size_t *
Pointer to address, at which the size of the newly created memory
string is to be stored
@end table
@item GCRY_AC_IO_CALLBACK
In case of GCRY_AC_IO_READABLE the object will forward read requests
to a provided callback function. Arguments to specify at
initialization time:
@table @code
@item gcry_ac_data_read_cb_t
Callback function to use
@item void *
Opaque argument to provide to the callback function
@end table
In case of GCRY_AC_IO_WRITABLE the object will forward write requests
to a provided callback function. Arguments to specify at
initialization time:
@table @code
@item gcry_ac_data_write_cb_t
Callback function to use
@item void *
Opaque argument to provide to the callback function
@end table
@end table
@node Working with handles
@subsection Working with handles
In order to use an algorithm, an according handle must be created.
This is done using the following function:
@deftypefun gcry_error_t gcry_ac_open (gcry_ac_handle_t *@var{handle}, int @var{algorithm}, int @var{flags})
Creates a new handle for the algorithm @var{algorithm} and stores it
in @var{handle}. @var{flags} is not used currently.
@var{algorithm} must be a valid algorithm ID, see @xref{Available
asymmetric algorithms}, for a list of supported algorithms and the
according constants. Besides using the listed constants directly, the
functions @code{gcry_pk_name_to_id} may be used to convert the textual
name of an algorithm into the according numeric ID.
@end deftypefun
@deftypefun void gcry_ac_close (gcry_ac_handle_t @var{handle})
Destroys the handle @var{handle}.
@end deftypefun
@node Working with keys
@subsection Working with keys
@deftp {Data type} gcry_ac_key_type_t
Defined constants:
@table @code
@item GCRY_AC_KEY_SECRET
Specifies a secret key.
@item GCRY_AC_KEY_PUBLIC
Specifies a public key.
@end table
@end deftp
@deftp {Data type} gcry_ac_key_t
This type represents a single `key', either a secret one or a public
one.
@end deftp
@deftp {Data type} gcry_ac_key_pair_t
This type represents a `key pair' containing a secret and a public key.
@end deftp
Key data structures can be created in two different ways; a new key
pair can be generated, resulting in ready-to-use key. Alternatively a
key can be initialized from a given data set.
@deftypefun gcry_error_t gcry_ac_key_init (gcry_ac_key_t *@var{key}, gcry_ac_handle_t @var{handle}, gcry_ac_key_type_t @var{type}, gcry_ac_data_t @var{data})
Creates a new key of type @var{type}, consisting of the MPI values
contained in the data set @var{data} and stores it in @var{key}.
@end deftypefun
@deftypefun gcry_error_t gcry_ac_key_pair_generate (gcry_ac_handle_t @var{handle}, unsigned int @var{nbits}, void *@var{key_spec}, gcry_ac_key_pair_t *@var{key_pair}, gcry_mpi_t **@var{misc_data})
Generates a new key pair via the handle @var{handle} of @var{NBITS}
bits and stores it in @var{key_pair}.
In case non-standard settings are wanted, a pointer to a structure of
type @code{gcry_ac_key_spec_<algorithm>_t}, matching the selected
algorithm, can be given as @var{key_spec}. @var{misc_data} is not
used yet. Such a structure does only exist for RSA. A description
of the members of the supported structures follows.
@table @code
@item gcry_ac_key_spec_rsa_t
@table @code
@item gcry_mpi_t e
Generate the key pair using a special @code{e}. The value of @code{e}
has the following meanings:
@table @code
@item = 0
Let Libgcrypt decide what exponent should be used.
@item = 1
Request the use of a ``secure'' exponent; this is required by some
specification to be 65537.
@item > 2
Try starting at this value until a working exponent is found. Note
that the current implementation leaks some information about the
private key because the incrementation used is not randomized. Thus,
this function will be changed in the future to return a random
exponent of the given size.
@end table
@end table
@end table
Example code:
@example
@{
gcry_ac_key_pair_t key_pair;
gcry_ac_key_spec_rsa_t rsa_spec;
rsa_spec.e = gcry_mpi_new (0);
gcry_mpi_set_ui (rsa_spec.e, 1);
err = gcry_ac_open (&handle, GCRY_AC_RSA, 0);
assert (! err);
err = gcry_ac_key_pair_generate (handle, 1024, &rsa_spec,
&key_pair, NULL);
assert (! err);
@}
@end example
@end deftypefun
@deftypefun gcry_ac_key_t gcry_ac_key_pair_extract (gcry_ac_key_pair_t @var{key_pair}, gcry_ac_key_type_t @var{which})
Returns the key of type @var{which} out of the key pair
@var{key_pair}.
@end deftypefun
@deftypefun void gcry_ac_key_destroy (gcry_ac_key_t @var{key})
Destroys the key @var{key}.
@end deftypefun
@deftypefun void gcry_ac_key_pair_destroy (gcry_ac_key_pair_t @var{key_pair})
Destroys the key pair @var{key_pair}.
@end deftypefun
@deftypefun gcry_ac_data_t gcry_ac_key_data_get (gcry_ac_key_t @var{key})
Returns the data set contained in the key @var{key}.
@end deftypefun
@deftypefun gcry_error_t gcry_ac_key_test (gcry_ac_handle_t @var{handle}, gcry_ac_key_t @var{key})
Verifies that the private key @var{key} is sane via @var{handle}.
@end deftypefun
@deftypefun gcry_error_t gcry_ac_key_get_nbits (gcry_ac_handle_t @var{handle}, gcry_ac_key_t @var{key}, unsigned int *@var{nbits})
Stores the number of bits of the key @var{key} in @var{nbits} via @var{handle}.
@end deftypefun
@deftypefun gcry_error_t gcry_ac_key_get_grip (gcry_ac_handle_t @var{handle}, gcry_ac_key_t @var{key}, unsigned char *@var{key_grip})
Writes the 20 byte long key grip of the key @var{key} to
@var{key_grip} via @var{handle}.
@end deftypefun
@node Using cryptographic functions
@subsection Using cryptographic functions
The following flags might be relevant:
@table @code
@item GCRY_AC_FLAG_NO_BLINDING
Disable any blinding, which might be supported by the chosen
algorithm; blinding is the default.
@end table
There exist two kinds of cryptographic functions available through the
ac interface: primitives, and high-level functions.
Primitives deal with MPIs (data sets) directly; what they provide is
direct access to the cryptographic operations provided by an algorithm
implementation.
High-level functions deal with octet strings, according to a specified
``scheme''. Schemes make use of ``encoding methods'', which are
responsible for converting the provided octet strings into MPIs, which
are then forwared to the cryptographic primitives. Since schemes are
to be used for a special purpose in order to achieve a particular
security goal, there exist ``encryption schemes'' and ``signature
schemes''. Encoding methods can be used seperately or implicitly
through schemes.
What follows is a description of the cryptographic primitives.
@deftypefun gcry_error_t gcry_ac_data_encrypt (gcry_ac_handle_t @var{handle}, unsigned int @var{flags}, gcry_ac_key_t @var{key}, gcry_mpi_t @var{data_plain}, gcry_ac_data_t *@var{data_encrypted})
Encrypts the plain text MPI value @var{data_plain} with the key public
@var{key} under the control of the flags @var{flags} and stores the
resulting data set into @var{data_encrypted}.
@end deftypefun
@deftypefun gcry_error_t gcry_ac_data_decrypt (gcry_ac_handle_t @var{handle}, unsigned int @var{flags}, gcry_ac_key_t @var{key}, gcry_mpi_t *@var{data_plain}, gcry_ac_data_t @var{data_encrypted})
Decrypts the encrypted data contained in the data set
@var{data_encrypted} with the secret key KEY under the control of the
flags @var{flags} and stores the resulting plain text MPI value in
@var{DATA_PLAIN}.
@end deftypefun
@deftypefun gcry_error_t gcry_ac_data_sign (gcry_ac_handle_t @var{handle}, gcry_ac_key_t @var{key}, gcry_mpi_t @var{data}, gcry_ac_data_t *@var{data_signature})
Signs the data contained in @var{data} with the secret key @var{key}
and stores the resulting signature in the data set
@var{data_signature}.
@end deftypefun
@deftypefun gcry_error_t gcry_ac_data_verify (gcry_ac_handle_t @var{handle}, gcry_ac_key_t @var{key}, gcry_mpi_t @var{data}, gcry_ac_data_t @var{data_signature})
Verifies that the signature contained in the data set
@var{data_signature} is indeed the result of signing the data
contained in @var{data} with the secret key belonging to the public
key @var{key}.
@end deftypefun
What follows is a description of the high-level functions.
The type ``gcry_ac_em_t'' is used for specifying encoding methods; the
following methods are supported:
@table @code
@item GCRY_AC_EME_PKCS_V1_5
PKCS-V1_5 Encoding Method for Encryption. Options must be provided
through a pointer to a correctly initialized object of type
gcry_ac_eme_pkcs_v1_5_t.
@item GCRY_AC_EMSA_PKCS_V1_5
PKCS-V1_5 Encoding Method for Signatures with Appendix. Options must
be provided through a pointer to a correctly initialized object of
type gcry_ac_emsa_pkcs_v1_5_t.
@end table
Option structure types:
@table @code
@item gcry_ac_eme_pkcs_v1_5_t
@table @code
@item gcry_ac_key_t key
@item gcry_ac_handle_t handle
@end table
@item gcry_ac_emsa_pkcs_v1_5_t
@table @code
@item gcry_md_algo_t md
@item size_t em_n
@end table
@end table
Encoding methods can be used directly through the following functions:
@deftypefun gcry_error_t gcry_ac_data_encode (gcry_ac_em_t @var{method}, unsigned int @var{flags}, void *@var{options}, unsigned char *@var{m}, size_t @var{m_n}, unsigned char **@var{em}, size_t *@var{em_n})
Encodes the message contained in @var{m} of size @var{m_n} according
to @var{method}, @var{flags} and @var{options}. The newly created
encoded message is stored in @var{em} and @var{em_n}.
@end deftypefun
@deftypefun gcry_error_t gcry_ac_data_decode (gcry_ac_em_t @var{method}, unsigned int @var{flags}, void *@var{options}, unsigned char *@var{em}, size_t @var{em_n}, unsigned char **@var{m}, size_t *@var{m_n})
Decodes the message contained in @var{em} of size @var{em_n} according
to @var{method}, @var{flags} and @var{options}. The newly created
decoded message is stored in @var{m} and @var{m_n}.
@end deftypefun
The type ``gcry_ac_scheme_t'' is used for specifying schemes; the
following schemes are supported:
@table @code
@item GCRY_AC_ES_PKCS_V1_5
PKCS-V1_5 Encryption Scheme. No options can be provided.
@item GCRY_AC_SSA_PKCS_V1_5
PKCS-V1_5 Signature Scheme (with Appendix). Options can be provided
through a pointer to a correctly initialized object of type
gcry_ac_ssa_pkcs_v1_5_t.
@end table
Option structure types:
@table @code
@item gcry_ac_ssa_pkcs_v1_5_t
@table @code
@item gcry_md_algo_t md
@end table
@end table
The functions implementing schemes:
@deftypefun gcry_error_t gcry_ac_data_encrypt_scheme (gcry_ac_handle_t @var{handle}, gcry_ac_scheme_t @var{scheme}, unsigned int @var{flags}, void *@var{opts}, gcry_ac_key_t @var{key}, gcry_ac_io_t *@var{io_message}, gcry_ac_io_t *@var{io_cipher})
Encrypts the plain text readable from @var{io_message} through
@var{handle} with the public key @var{key} according to @var{scheme},
@var{flags} and @var{opts}. If @var{opts} is not NULL, it has to be a
pointer to a structure specific to the chosen scheme (gcry_ac_es_*_t).
The encrypted message is written to @var{io_cipher}.
@end deftypefun
@deftypefun gcry_error_t gcry_ac_data_decrypt_scheme (gcry_ac_handle_t @var{handle}, gcry_ac_scheme_t @var{scheme}, unsigned int @var{flags}, void *@var{opts}, gcry_ac_key_t @var{key}, gcry_ac_io_t *@var{io_cipher}, gcry_ac_io_t *@var{io_message})
Decrypts the cipher text readable from @var{io_cipher} through
@var{handle} with the secret key @var{key} according to @var{scheme},
@var{flags} and @var{opts}. If @var{opts} is not NULL, it has to be a
pointer to a structure specific to the chosen scheme (gcry_ac_es_*_t).
The decrypted message is written to @var{io_message}.
@end deftypefun
@deftypefun gcry_error_t gcry_ac_data_sign_scheme (gcry_ac_handle_t @var{handle}, gcry_ac_scheme_t @var{scheme}, unsigned int @var{flags}, void *@var{opts}, gcry_ac_key_t @var{key}, gcry_ac_io_t *@var{io_message}, gcry_ac_io_t *@var{io_signature})
Signs the message readable from @var{io_message} through @var{handle}
with the secret key @var{key} according to @var{scheme}, @var{flags}
and @var{opts}. If @var{opts} is not NULL, it has to be a pointer to
a structure specific to the chosen scheme (gcry_ac_ssa_*_t). The
signature is written to @var{io_signature}.
@end deftypefun
@deftypefun gcry_error_t gcry_ac_data_verify_scheme (gcry_ac_handle_t @var{handle}, gcry_ac_scheme_t @var{scheme}, unsigned int @var{flags}, void *@var{opts}, gcry_ac_key_t @var{key}, gcry_ac_io_t *@var{io_message}, gcry_ac_io_t *@var{io_signature})
Verifies through @var{handle} that the signature readable from
@var{io_signature} is indeed the result of signing the message
readable from @var{io_message} with the secret key belonging to the
public key @var{key} according to @var{scheme} and @var{opts}. If
@var{opts} is not NULL, it has to be an anonymous structure
(gcry_ac_ssa_*_t) specific to the chosen scheme.
@end deftypefun
@node Handle-independent functions
@subsection Handle-independent functions
These two functions are deprecated; do not use them for new code.
@deftypefun gcry_error_t gcry_ac_id_to_name (gcry_ac_id_t @var{algorithm}, const char **@var{name})
Stores the textual representation of the algorithm whose id is given
in @var{algorithm} in @var{name}. Deprecated; use @code{gcry_pk_algo_name}.
@end deftypefun
@deftypefun gcry_error_t gcry_ac_name_to_id (const char *@var{name}, gcry_ac_id_t *@var{algorithm})
Stores the numeric ID of the algorithm whose textual representation is
contained in @var{name} in @var{algorithm}. Deprecated; use
@code{gcry_pk_map_name}.
@end deftypefun
@c **********************************************************
@c ******************* Hash Functions *********************
@c **********************************************************
@node Hashing
@chapter Hashing
Libgcrypt provides an easy and consistent to use interface for hashing.
Hashing is buffered and several hash algorithms can be updated at once.
It is possible to compute a MAC using the same routines. The
programming model follows an open/process/close paradigm and is in that
similar to other building blocks provided by Libgcrypt.
For convenience reasons, a few cyclic redundancy check value operations
are also supported.
@menu
* Available hash algorithms:: List of hash algorithms supported by the library.
* Hash algorithm modules:: How to work with hash algorithm modules.
* Working with hash algorithms:: List of functions related to hashing.
@end menu
@node Available hash algorithms
@section Available hash algorithms
@c begin table of hash algorithms
@cindex SHA-1
@cindex SHA-224, SHA-256, SHA-384, SHA-512
@cindex RIPE-MD-160
@cindex MD2, MD4, MD5
-@cindex TIGER
+@cindex TIGER, TIGER1, TIGER2
@cindex HAVAL
@cindex Whirlpool
@cindex CRC32
@table @code
@item GCRY_MD_NONE
This is not a real algorithm but used by some functions as an error
return value. This constant is guaranteed to have the value @code{0}.
@item GCRY_MD_SHA1
This is the SHA-1 algorithm which yields a message digest of 20 bytes.
Note that SHA-1 begins to show some weaknesses and it is suggested to
fade out its use if strong cryptographic properties are required.
@item GCRY_MD_RMD160
This is the 160 bit version of the RIPE message digest (RIPE-MD-160).
Like SHA-1 it also yields a digest of 20 bytes. This algorithm share a
lot of design properties with SHA-1 and thus it is advisable not to use
it for new protocols.
@item GCRY_MD_MD5
This is the well known MD5 algorithm, which yields a message digest of
16 bytes. Note that the MD5 algorithm has severe weaknesses, for
example it is easy to compute two messages yielding the same hash
(collision attack). The use of this algorithm is only justified for
non-cryptographic application.
@item GCRY_MD_MD4
This is the MD4 algorithm, which yields a message digest of 16 bytes.
This algorithms ha severe weaknesses and should not be used.
@item GCRY_MD_MD2
This is an reserved identifier for MD-2; there is no implementation yet.
This algorithm has severe weaknesses and should not be used.
@item GCRY_MD_TIGER
-This is the TIGER/192 algorithm which yields a message digest of 24 bytes.
+This is the TIGER/192 algorithm which yields a message digest of 24
+bytes. Actually this is a variant of TIGER with a different output
+print order as used by GnuPG up to version 1.3.2.
+
+@item GCRY_MD_TIGER1
+This is the TIGER variant as used by the NESSIE project. It uses the
+most commonly used output print order.
+
+@item GCRY_MD_TIGER2
+This is another variant of TIGER with a different padding scheme.
+
@item GCRY_MD_HAVAL
This is an reserved value for the HAVAL algorithm with 5 passes and 160
bit. It yields a message digest of 20 bytes. Note that there is no
implementation yet available.
@item GCRY_MD_SHA224
This is the SHA-224 algorithm which yields a message digest of 28 bytes.
See Change Notice 1 for FIPS 180-2 for the specification.
@item GCRY_MD_SHA256
This is the SHA-256 algorithm which yields a message digest of 32 bytes.
See FIPS 180-2 for the specification.
@item GCRY_MD_SHA384
This is the SHA-384 algorithm which yields a message digest of 48 bytes.
See FIPS 180-2 for the specification.
@item GCRY_MD_SHA512
This is the SHA-384 algorithm which yields a message digest of 64 bytes.
See FIPS 180-2 for the specification.
@item GCRY_MD_CRC32
This is the ISO 3309 and ITU-T V.42 cyclic redundancy check. It yields
an output of 4 bytes. Note that this is not a hash algorithm in the
cryptographic sense.
@item GCRY_MD_CRC32_RFC1510
This is the above cyclic redundancy check function, as modified by RFC
1510. It yields an output of 4 bytes. Note that this is not a hash
algorithm in the cryptographic sense.
@item GCRY_MD_CRC24_RFC2440
This is the OpenPGP cyclic redundancy check function. It yields an
output of 3 bytes. Note that this is not a hash algorithm in the
cryptographic sense.
@item GCRY_MD_WHIRLPOOL
This is the Whirlpool algorithm which yields a message digest of 64
bytes.
@end table
@c end table of hash algorithms
@node Hash algorithm modules
@section Hash algorithm modules
Libgcrypt makes it possible to load additional `message
digest modules'; these digests can be used just like the message digest
algorithms that are built into the library directly. For an
introduction into extension modules, see @xref{Modules}.
@deftp {Data type} gcry_md_spec_t
This is the `module specification structure' needed for registering
message digest modules, which has to be filled in by the user before
it can be used to register a module. It contains the following
members:
@table @code
@item const char *name
The primary name of this algorithm.
@item unsigned char *asnoid
Array of bytes that form the ASN OID.
@item int asnlen
Length of bytes in `asnoid'.
@item gcry_md_oid_spec_t *oids
A list of OIDs that are to be associated with the algorithm. The
list's last element must have it's `oid' member set to NULL. See
below for an explanation of this type. See below for an explanation
of this type.
@item int mdlen
Length of the message digest algorithm. See below for an explanation
of this type.
@item gcry_md_init_t init
The function responsible for initializing a handle. See below for an
explanation of this type.
@item gcry_md_write_t write
The function responsible for writing data into a message digest
context. See below for an explanation of this type.
@item gcry_md_final_t final
The function responsible for `finalizing' a message digest context.
See below for an explanation of this type.
@item gcry_md_read_t read
The function responsible for reading out a message digest result. See
below for an explanation of this type.
@item size_t contextsize
The size of the algorithm-specific `context', that should be
allocated for each handle.
@end table
@end deftp
@deftp {Data type} gcry_md_oid_spec_t
This type is used for associating a user-provided algorithm
implementation with certain OIDs. It contains the following members:
@table @code
@item const char *oidstring
Textual representation of the OID.
@end table
@end deftp
@deftp {Data type} gcry_md_init_t
Type for the `init' function, defined as: void (*gcry_md_init_t) (void
*c)
@end deftp
@deftp {Data type} gcry_md_write_t
Type for the `write' function, defined as: void (*gcry_md_write_t)
(void *c, unsigned char *buf, size_t nbytes)
@end deftp
@deftp {Data type} gcry_md_final_t
Type for the `final' function, defined as: void (*gcry_md_final_t)
(void *c)
@end deftp
@deftp {Data type} gcry_md_read_t
Type for the `read' function, defined as: unsigned char
*(*gcry_md_read_t) (void *c)
@end deftp
@deftypefun gcry_error_t gcry_md_register (gcry_md_spec_t *@var{digest}, unsigned int *algorithm_id, gcry_module_t *@var{module})
Register a new digest module whose specification can be found in
@var{digest}. On success, a new algorithm ID is stored in
@var{algorithm_id} and a pointer representing this module is stored
in @var{module}.
@end deftypefun
@deftypefun void gcry_md_unregister (gcry_module_t @var{module})
Unregister the digest identified by @var{module}, which must have been
registered with gcry_md_register.
@end deftypefun
@deftypefun gcry_error_t gcry_md_list (int *@var{list}, int *@var{list_length})
Get a list consisting of the IDs of the loaded message digest modules.
If @var{list} is zero, write the number of loaded message digest
modules to @var{list_length} and return. If @var{list} is non-zero,
the first *@var{list_length} algorithm IDs are stored in @var{list},
which must be of according size. In case there are less message
digests modules than *@var{list_length}, *@var{list_length} is updated
to the correct number.
@end deftypefun
@node Working with hash algorithms
@section Working with hash algorithms
To use most of these function it is necessary to create a context;
this is done using:
@deftypefun gcry_error_t gcry_md_open (gcry_md_hd_t *@var{hd}, int @var{algo}, unsigned int @var{flags})
Create a message digest object for algorithm @var{algo}. @var{flags}
may be given as an bitwise OR of constants described below. @var{algo}
may be given as @code{0} if the algorithms to use are later set using
@code{gcry_md_enable}. @var{hd} is guaranteed to either receive a valid
handle or NULL.
For a list of supported algorithms, see @xref{Available hash
algorithms}.
The flags allowed for @var{mode} are:
@c begin table of hash flags
@table @code
@item GCRY_MD_FLAG_SECURE
Allocate all buffers and the resulting digest in "secure memory". Use
this is the hashed data is highly confidential.
@item GCRY_MD_FLAG_HMAC
@cindex HMAC
Turn the algorithm into a HMAC message authentication algorithm. This
only works if just one algorithm is enabled for the handle. Note that
the function @code{gcry_md_setkey} must be used to set the MAC key.
The size of the MAC is equal to the message digest of the underlying
hash algorithm. If you want CBC message authentication codes based on
a cipher, see @xref{Working with cipher handles}.
@end table
@c begin table of hash flags
You may use the function @code{gcry_md_is_enabled} to later check
whether an algorithm has been enabled.
@end deftypefun
@c end function gcry_md_open
If you want to calculate several hash algorithms at the same time, you
have to use the following function right after the @code{gcry_md_open}:
@deftypefun gcry_error_t gcry_md_enable (gcry_md_hd_t @var{h}, int @var{algo})
Add the message digest algorithm @var{algo} to the digest object
described by handle @var{h}. Duplicated enabling of algorithms is
detected and ignored.
@end deftypefun
If the flag @code{GCRY_MD_FLAG_HMAC} was used, the key for the MAC must
be set using the function:
@deftypefun gcry_error_t gcry_md_setkey (gcry_md_hd_t @var{h}, const void *@var{key}, size_t @var{keylen})
For use with the HMAC feature, set the MAC key to the value of
@var{key} of length @var{keylen} bytes. There is no restriction on
the length of the key.
@end deftypefun
After you are done with the hash calculation, you should release the
resources by using:
@deftypefun void gcry_md_close (gcry_md_hd_t @var{h})
Release all resources of hash context @var{h}. @var{h} should not be
used after a call to this function. A @code{NULL} passed as @var{h} is
ignored. The function also zeroises all sensitive information
associated with this handle.
@end deftypefun
Often you have to do several hash operations using the same algorithm.
To avoid the overhead of creating and releasing context, a reset function
is provided:
@deftypefun void gcry_md_reset (gcry_md_hd_t @var{h})
Reset the current context to its initial state. This is effectively
identical to a close followed by an open and enabling all currently
active algorithms.
@end deftypefun
Often it is necessary to start hashing some data and then continue to
hash different data. To avoid hashing the same data several times (which
might not even be possible if the data is received from a pipe), a
snapshot of the current hash context can be taken and turned into a new
context:
@deftypefun gcry_error_t gcry_md_copy (gcry_md_hd_t *@var{handle_dst}, gcry_md_hd_t @var{handle_src})
Create a new digest object as an exact copy of the object described by
handle @var{handle_src} and store it in @var{handle_dst}. The context
is not reset and you can continue to hash data using this context and
independently using the original context.
@end deftypefun
Now that we have prepared everything to calculate hashes, it is time to
see how it is actually done. There are two ways for this, one to
update the hash with a block of memory and one macro to update the hash
by just one character. Both methods can be used on the same hash context.
@deftypefun void gcry_md_write (gcry_md_hd_t @var{h}, const void *@var{buffer}, size_t @var{length})
Pass @var{length} bytes of the data in @var{buffer} to the digest object
with handle @var{h} to update the digest values. This
function should be used for large blocks of data.
@end deftypefun
@deftypefun void gcry_md_putc (gcry_md_hd_t @var{h}, int @var{c})
Pass the byte in @var{c} to the digest object with handle @var{h} to
update the digest value. This is an efficient function, implemented as
a macro to buffer the data before an actual update.
@end deftypefun
The semantics of the hash functions do not provide for reading out intermediate
message digests because the calculation must be finalized first. This
finalization may for example include the number of bytes hashed in the
message digest or some padding.
@deftypefun void gcry_md_final (gcry_md_hd_t @var{h})
Finalize the message digest calculation. This is not really needed
because @code{gcry_md_read} does this implicitly. After this has been
done no further updates (by means of @code{gcry_md_write} or
@code{gcry_md_putc} are allowed. Only the first call to this function
has an effect. It is implemented as a macro.
@end deftypefun
The way to read out the calculated message digest is by using the
function:
@deftypefun {unsigned char *} gcry_md_read (gcry_md_hd_t @var{h}, int @var{algo})
@code{gcry_md_read} returns the message digest after finalizing the
calculation. This function may be used as often as required but it will
always return the same value for one handle. The returned message digest
is allocated within the message context and therefore valid until the
handle is released or reseted (using @code{gcry_md_close} or
@code{gcry_md_reset}. @var{algo} may be given as 0 to return the only
enabled message digest or it may specify one of the enabled algorithms.
The function does return @code{NULL} if the requested algorithm has not
been enabled.
@end deftypefun
Because it is often necessary to get the message digest of one block of
memory, a fast convenience function is available for this task:
@deftypefun void gcry_md_hash_buffer (int @var{algo}, void *@var{digest}, const void *@var{buffer}, size_t @var{length});
@code{gcry_md_hash_buffer} is a shortcut function to calculate a message
digest of a buffer. This function does not require a context and
immediately returns the message digest of the @var{length} bytes at
@var{buffer}. @var{digest} must be allocated by the caller, large
enough to hold the message digest yielded by the the specified algorithm
@var{algo}. This required size may be obtained by using the function
@code{gcry_md_get_algo_dlen}.
Note that this function will abort the process if an unavailable
algorithm is used.
@end deftypefun
@c ***********************************
@c ***** MD info functions ***********
@c ***********************************
Hash algorithms are identified by internal algorithm numbers (see
@code{gcry_md_open} for a list). However, in most applications they are
used by names, so two functions are available to map between string
representations and hash algorithm identifiers.
@deftypefun {const char *} gcry_md_algo_name (int @var{algo})
Map the digest algorithm id @var{algo} to a string representation of the
algorithm name. For unknown algorithms this function returns the
string @code{"?"}. This function should not be used to test for the
availability of an algorithm.
@end deftypefun
@deftypefun int gcry_md_map_name (const char *@var{name})
Map the algorithm with @var{name} to a digest algorithm identifier.
Returns 0 if the algorithm name is not known. Names representing
@acronym{ASN.1} object identifiers are recognized if the @acronym{IETF}
dotted format is used and the OID is prefixed with either "@code{oid.}"
or "@code{OID.}". For a list of supported OIDs, see the source code at
@file{cipher/md.c}. This function should not be used to test for the
availability of an algorithm.
@end deftypefun
@deftypefun gcry_error_t gcry_md_get_asnoid (int @var{algo}, void *@var{buffer}, size_t *@var{length})
Return an DER encoded ASN.1 OID for the algorithm @var{algo} in the
user allocated @var{buffer}. @var{length} must point to variable with
the available size of @var{buffer} and receives after return the
actual size of the returned OID. The returned error code may be
@code{GPG_ERR_TOO_SHORT} if the provided buffer is to short to receive
the OID; it is possible to call the function with @code{NULL} for
@var{buffer} to have it only return the required size. The function
returns 0 on success.
@end deftypefun
To test whether an algorithm is actually available for use, the
following macro should be used:
@deftypefun gcry_error_t gcry_md_test_algo (int @var{algo})
The macro returns 0 if the algorithm @var{algo} is available for use.
@end deftypefun
If the length of a message digest is not known, it can be retrieved
using the following function:
@deftypefun {unsigned int} gcry_md_get_algo_dlen (int @var{algo})
Retrieve the length in bytes of the digest yielded by algorithm
@var{algo}. This is often used prior to @code{gcry_md_read} to allocate
sufficient memory for the digest.
@end deftypefun
In some situations it might be hard to remember the algorithm used for
the ongoing hashing. The following function might be used to get that
information:
@deftypefun int gcry_md_get_algo (gcry_md_hd_t @var{h})
Retrieve the algorithm used with the handle @var{h}. Note that this
does not work reliable if more than one algorithm is enabled in @var{h}.
@end deftypefun
The following macro might also be useful:
@deftypefun int gcry_md_is_secure (gcry_md_hd_t @var{h})
This function returns true when the digest object @var{h} is allocated
in "secure memory"; i.e. @var{h} was created with the
@code{GCRY_MD_FLAG_SECURE}.
@end deftypefun
@deftypefun int gcry_md_is_enabled (gcry_md_hd_t @var{h}, int @var{algo})
This function returns true when the algorithm @var{algo} has been
enabled for the digest object @var{h}.
@end deftypefun
Tracking bugs related to hashing is often a cumbersome task which
requires to add a lot of printf statements into the code.
Libgcrypt provides an easy way to avoid this. The actual data
hashed can be written to files on request.
@deftypefun void gcry_md_debug (gcry_md_hd_t @var{h}, const char *@var{suffix})
Enable debugging for the digest object with handle @var{h}. This
creates create files named @file{dbgmd-<n>.<string>} while doing the
actual hashing. @var{suffix} is the string part in the filename. The
number is a counter incremented for each new hashing. The data in the
file is the raw data as passed to @code{gcry_md_write} or
@code{gcry_md_putc}. If @code{NULL} is used for @var{suffix}, the
debugging is stopped and the file closed. This is only rarely required
because @code{gcry_md_close} implicitly stops debugging.
@end deftypefun
The following two deprecated macros are used for debugging by old code.
They shopuld be replaced by @code{gcry_md_debug}.
@deftypefun void gcry_md_start_debug (gcry_md_hd_t @var{h}, const char *@var{suffix})
Enable debugging for the digest object with handle @var{h}. This
creates create files named @file{dbgmd-<n>.<string>} while doing the
actual hashing. @var{suffix} is the string part in the filename. The
number is a counter incremented for each new hashing. The data in the
file is the raw data as passed to @code{gcry_md_write} or
@code{gcry_md_putc}.
@end deftypefun
@deftypefun void gcry_md_stop_debug (gcry_md_hd_t @var{h}, int @var{reserved})
Stop debugging on handle @var{h}. @var{reserved} should be specified as
0. This function is usually not required because @code{gcry_md_close}
does implicitly stop debugging.
@end deftypefun
@c **********************************************************
@c ******************* Random *****************************
@c **********************************************************
@node Random Numbers
@chapter Random Numbers
@menu
* Quality of random numbers:: Libgcrypt uses different quality levels.
* Retrieving random numbers:: How to retrieve random numbers.
@end menu
@node Quality of random numbers
@section Quality of random numbers
@acronym{Libgcypt} offers random numbers of different quality levels:
@deftp {Data type} gcry_random_level_t
The constants for the random quality levels are of this enum type.
@end deftp
@table @code
@item GCRY_WEAK_RANDOM
For all functions, except for @code{gcry_mpi_randomize}, this level maps
to GCRY_STRONG_RANDOM. If you do not want this, consider using
@code{gcry_create_nonce}.
@item GCRY_STRONG_RANDOM
Use this level for session keys and similar purposes.
@item GCRY_VERY_STRONG_RANDOM
Use this level for long term key material.
@end table
@node Retrieving random numbers
@section Retrieving random numbers
@deftypefun void gcry_randomize (unsigned char *@var{buffer}, size_t @var{length}, enum gcry_random_level @var{level})
Fill @var{buffer} with @var{length} random bytes using a random quality
as defined by @var{level}.
@end deftypefun
@deftypefun {void *} gcry_random_bytes (size_t @var{nbytes}, enum gcry_random_level @var{level})
Convenience function to allocate a memory block consisting of
@var{nbytes} fresh random bytes using a random quality as defined by
@var{level}.
@end deftypefun
@deftypefun {void *} gcry_random_bytes_secure (size_t @var{nbytes}, enum gcry_random_level @var{level})
Convenience function to allocate a memory block consisting of
@var{nbytes} fresh random bytes using a random quality as defined by
@var{level}. This function differs from @code{gcry_random_bytes} in
that the returned buffer is allocated in a ``secure'' area of the
memory.
@end deftypefun
@deftypefun void gcry_create_nonce (unsigned char *@var{buffer}, size_t @var{length})
Fill @var{buffer} with @var{length} unpredictable bytes. This is
commonly called a nonce and may also be used for initialization
vectors and padding. This is an extra function nearly independent of
the other random function for 3 reasons: It better protects the
regular random generator's internal state, provides better performance
and does not drain the precious entropy pool.
@end deftypefun
@c **********************************************************
@c ******************* S-Expressions ***********************
@c **********************************************************
@node S-expressions
@chapter S-expressions
S-expressions are used by the public key functions to pass complex data
structures around. These LISP like objects are used by some
cryptographic protocols (cf. RFC-2692) and Libgcrypt provides functions
to parse and construct them. For detailed information, see
@cite{Ron Rivest, code and description of S-expressions,
@uref{http://theory.lcs.mit.edu/~rivest/sexp.html}}.
@menu
* Data types for S-expressions:: Data types related with S-expressions.
* Working with S-expressions:: How to work with S-expressions.
@end menu
@node Data types for S-expressions
@section Data types for S-expressions
@deftp {Data type} gcry_sexp_t
The @code{gcry_sexp_t} type describes an object with the Libgcrypt internal
representation of an S-expression.
@end deftp
@node Working with S-expressions
@section Working with S-expressions
@noindent
There are several functions to create an Libgcrypt S-expression object
from its external representation or from a string template. There is
also a function to convert the internal representation back into one of
the external formats:
@deftypefun gcry_error_t gcry_sexp_new (@w{gcry_sexp_t *@var{r_sexp}}, @w{const void *@var{buffer}}, @w{size_t @var{length}}, @w{int @var{autodetect}})
This is the generic function to create an new S-expression object from
its external representation in @var{buffer} of @var{length} bytes. On
success the result is stored at the address given by @var{r_sexp}.
With @var{autodetect} set to 0, the data in @var{buffer} is expected to
be in canonized format, with @var{autodetect} set to 1 the parses any of
the defined external formats. If @var{buffer} does not hold a valid
S-expression an error code is returned and @var{r_sexp} set to
@code{NULL}.
Note that the caller is responsible for releasing the newly allocated
S-expression using @code{gcry_sexp_release}.
@end deftypefun
@deftypefun gcry_error_t gcry_sexp_create (@w{gcry_sexp_t *@var{r_sexp}}, @w{void *@var{buffer}}, @w{size_t @var{length}}, @w{int @var{autodetect}}, @w{void (*@var{freefnc})(void*)})
This function is identical to @code{gcry_sexp_new} but has an extra
argument @var{freefnc}, which, when not set to @code{NULL}, is expected
to be a function to release the @var{buffer}; most likely the standard
@code{free} function is used for this argument. This has the effect of
transferring the ownership of @var{buffer} to the created object in
@var{r_sexp}. The advantage of using this function is that Libgcrypt
might decide to directly use the provided buffer and thus avoid extra
copying.
@end deftypefun
@deftypefun gcry_error_t gcry_sexp_sscan (@w{gcry_sexp_t *@var{r_sexp}}, @w{size_t *@var{erroff}}, @w{const char *@var{buffer}}, @w{size_t @var{length}})
This is another variant of the above functions. It behaves nearly
identical but provides an @var{erroff} argument which will receive the
offset into the buffer where the parsing stopped on error.
@end deftypefun
@deftypefun gcry_error_t gcry_sexp_build (@w{gcry_sexp_t *@var{r_sexp}}, @w{size_t *@var{erroff}}, @w{const char *@var{format}, ...})
This function creates an internal S-expression from the string template
@var{format} and stores it at the address of @var{r_sexp}. If there is a
parsing error, the function returns an appropriate error code and stores
the offset into @var{format} where the parsing stopped in @var{erroff}.
The function supports a couple of printf-like formatting characters and
expects arguments for some of these escape sequences right after
@var{format}. The following format characters are defined:
@table @samp
@item %m
The next argument is expected to be of type @code{gcry_mpi_t} and a copy of
its value is inserted into the resulting S-expression.
@item %s
The next argument is expected to be of type @code{char *} and that
string is inserted into the resulting S-expression.
@item %d
The next argument is expected to be of type @code{int} and its value is
inserted into the resulting S-expression.
@item %b
The next argument is expected to be of type @code{int} directly
followed by an argument of type @code{char *}. This represents a
buffer of given length to be inserted into the resulting S-expression.
@item %S
The next argument is expected to be of type @code{gcry_sexp_t} and a
copy of that S-expression is embedded in the resulting S-expression.
The argument needs to be a regular S-expression, starting with a
parenthesis.
@end table
@noindent
No other format characters are defined and would return an error. Note
that the format character @samp{%%} does not exists, because a percent
sign is not a valid character in an S-expression.
@end deftypefun
@deftypefun void gcry_sexp_release (@w{gcry_sexp_t @var{sexp}})
Release the S-expression object @var{sexp}. If the S-expression is
stored in secure memory it explicitly zeroises that memory; note that
this is done in addition to the zeroisation always done when freeing
secure memory.
@end deftypefun
@noindent
The next 2 functions are used to convert the internal representation
back into a regular external S-expression format and to show the
structure for debugging.
@deftypefun size_t gcry_sexp_sprint (@w{gcry_sexp_t @var{sexp}}, @w{int @var{mode}}, @w{char *@var{buffer}}, @w{size_t @var{maxlength}})
Copies the S-expression object @var{sexp} into @var{buffer} using the
format specified in @var{mode}. @var{maxlength} must be set to the
allocated length of @var{buffer}. The function returns the actual
length of valid bytes put into @var{buffer} or 0 if the provided buffer
is too short. Passing @code{NULL} for @var{buffer} returns the required
length for @var{buffer}. For convenience reasons an extra byte with
value 0 is appended to the buffer.
@noindent
The following formats are supported:
@table @code
@item GCRYSEXP_FMT_DEFAULT
Returns a convenient external S-expression representation.
@item GCRYSEXP_FMT_CANON
Return the S-expression in canonical format.
@item GCRYSEXP_FMT_BASE64
Not currently supported.
@item GCRYSEXP_FMT_ADVANCED
Returns the S-expression in advanced format.
@end table
@end deftypefun
@deftypefun void gcry_sexp_dump (@w{gcry_sexp_t @var{sexp}})
Dumps @var{sexp} in a format suitable for debugging to Libgcrypt's
logging stream.
@end deftypefun
@noindent
Often canonical encoding is used in the external representation. The
following function can be used to check for valid encoding and to learn
the length of the S-expression"
@deftypefun size_t gcry_sexp_canon_len (@w{const unsigned char *@var{buffer}}, @w{size_t @var{length}}, @w{size_t *@var{erroff}}, @w{int *@var{errcode}})
Scan the canonical encoded @var{buffer} with implicit length values and
return the actual length this S-expression uses. For a valid S-expression
it should never return 0. If @var{length} is not 0, the maximum
length to scan is given; this can be used for syntax checks of
data passed from outside. @var{errcode} and @var{erroff} may both be
passed as @code{NULL}.
@end deftypefun
@noindent
There are functions to parse S-expressions and retrieve elements:
@deftypefun gcry_sexp_t gcry_sexp_find_token (@w{const gcry_sexp_t @var{list}}, @w{const char *@var{token}}, @w{size_t @var{toklen}})
Scan the S-expression for a sublist with a type (the car of the list)
matching the string @var{token}. If @var{toklen} is not 0, the token is
assumed to be raw memory of this length. The function returns a newly
allocated S-expression consisting of the found sublist or @code{NULL}
when not found.
@end deftypefun
@deftypefun int gcry_sexp_length (@w{const gcry_sexp_t @var{list}})
Return the length of the @var{list}. For a valid S-expression this
should be at least 1.
@end deftypefun
@deftypefun gcry_sexp_t gcry_sexp_nth (@w{const gcry_sexp_t @var{list}}, @w{int @var{number}})
Create and return a new S-expression from the element with index @var{number} in
@var{list}. Note that the first element has the index 0. If there is
no such element, @code{NULL} is returned.
@end deftypefun
@deftypefun gcry_sexp_t gcry_sexp_car (@w{const gcry_sexp_t @var{list}})
Create and return a new S-expression from the first element in
@var{list}; this called the "type" and should always exist and be a
string. @code{NULL} is returned in case of a problem.
@end deftypefun
@deftypefun gcry_sexp_t gcry_sexp_cdr (@w{const gcry_sexp_t @var{list}})
Create and return a new list form all elements except for the first one.
Note that this function may return an invalid S-expression because it
is not guaranteed, that the type exists and is a string. However, for
parsing a complex S-expression it might be useful for intermediate
lists. Returns @code{NULL} on error.
@end deftypefun
@deftypefun {const char *} gcry_sexp_nth_data (@w{const gcry_sexp_t @var{list}}, @w{int @var{number}}, @w{size_t *@var{datalen}})
This function is used to get data from a @var{list}. A pointer to the
actual data with index @var{number} is returned and the length of this
data will be stored to @var{datalen}. If there is no data at the given
index or the index represents another list, @code{NULL} is returned.
@strong{Caution:} The returned pointer is valid as long as @var{list} is
not modified or released.
@noindent
Here is an example on how to extract and print the surname (Meier) from
the S-expression @samp{(Name Otto Meier (address Burgplatz 3))}:
@example
size_t len;
const char *name;
name = gcry_sexp_nth_data (list, 2, &len);
printf ("my name is %.*s\n", (int)len, name);
@end example
@end deftypefun
@deftypefun {char *} gcry_sexp_nth_string (@w{gcry_sexp_t @var{list}}, @w{int @var{number}})
This function is used to get and convert data from a @var{list}. The
data is assumed to be a Nul terminated string. The caller must
release this returned value using @code{gcry_free}. If there is
no data at the given index, the index represents a list or the value
can't be converted to a string, @code{NULL} is returned.
@end deftypefun
@deftypefun gcry_mpi_t gcry_sexp_nth_mpi (@w{gcry_sexp_t @var{list}}, @w{int @var{number}}, @w{int @var{mpifmt}})
This function is used to get and convert data from a @var{list}. This
data is assumed to be an MPI stored in the format described by
@var{mpifmt} and returned as a standard Libgcrypt MPI. The caller must
release this returned value using @code{gcry_mpi_release}. If there is
no data at the given index, the index represents a list or the value
can't be converted to an MPI, @code{NULL} is returned.
@end deftypefun
@c **********************************************************
@c ******************* MPIs ******** ***********************
@c **********************************************************
@node MPI library
@chapter MPI library
@menu
* Data types:: MPI related data types.
* Basic functions:: First steps with MPI numbers.
* MPI formats:: External representation of MPIs.
* Calculations:: Performing MPI calculations.
* Comparisons:: How to compare MPI values.
* Bit manipulations:: How to access single bits of MPI values.
* Miscellaneous:: Miscellaneous MPI functions.
@end menu
Public key cryptography is based on mathematics with large numbers. To
implement the public key functions, a library for handling these large
numbers is required. Because of the general usefulness of such a
library, its interface is exposed by Libgcrypt.
In the context of Libgcrypt and in most other applications, these large
numbers are called MPIs (multi-precision-integers).
@node Data types
@section Data types
@deftp {Data type} {gcry_mpi_t}
This type represents an object to hold an MPI.
@end deftp
@node Basic functions
@section Basic functions
@noindent
To work with MPIs, storage must be allocated and released for the
numbers. This can be done with one of these functions:
@deftypefun gcry_mpi_t gcry_mpi_new (@w{unsigned int @var{nbits}})
Allocate a new MPI object, initialize it to 0 and initially allocate
enough memory for a number of at least @var{nbits}. This pre-allocation is
only a small performance issue and not actually necessary because
Libgcrypt automatically re-allocates the required memory.
@end deftypefun
@deftypefun gcry_mpi_t gcry_mpi_snew (@w{unsigned int @var{nbits}})
This is identical to @code{gcry_mpi_new} but allocates the MPI in the so
called "secure memory" which in turn will take care that all derived
values will also be stored in this "secure memory". Use this for highly
confidential data like private key parameters.
@end deftypefun
@deftypefun gcry_mpi_t gcry_mpi_copy (@w{const gcry_mpi_t @var{a}})
Create a new MPI as the exact copy of @var{a}.
@end deftypefun
@deftypefun void gcry_mpi_release (@w{gcry_mpi_t @var{a}})
Release the MPI @var{a} and free all associated resources. Passing
@code{NULL} is allowed and ignored. When a MPI stored in the "secure
memory" is released, that memory gets wiped out immediately.
@end deftypefun
@noindent
The simplest operations are used to assign a new value to an MPI:
@deftypefun gcry_mpi_t gcry_mpi_set (@w{gcry_mpi_t @var{w}}, @w{const gcry_mpi_t @var{u}})
Assign the value of @var{u} to @var{w} and return @var{w}. If
@code{NULL} is passed for @var{w}, a new MPI is allocated, set to the
value of @var{u} and returned.
@end deftypefun
@deftypefun gcry_mpi_t gcry_mpi_set_ui (@w{gcry_mpi_t @var{w}}, @w{unsigned long @var{u}})
Assign the value of @var{u} to @var{w} and return @var{w}. If
@code{NULL} is passed for @var{w}, a new MPI is allocated, set to the
value of @var{u} and returned. This function takes an @code{unsigned
int} as type for @var{u} and thus it is only possible to set @var{w} to
small values (usually up to the word size of the CPU).
@end deftypefun
@deftypefun void gcry_mpi_swap (@w{gcry_mpi_t @var{a}}, @w{gcry_mpi_t @var{b}})
Swap the values of @var{a} and @var{b}.
@end deftypefun
@node MPI formats
@section MPI formats
@noindent
The following functions are used to convert between an external
representation of an MPI and the internal one of Libgcrypt.
@deftypefun gcry_error_t gcry_mpi_scan (@w{gcry_mpi_t *@var{r_mpi}}, @w{enum gcry_mpi_format @var{format}}, @w{const unsigned char *@var{buffer}}, @w{size_t @var{buflen}}, @w{size_t *@var{nscanned}})
Convert the external representation of an integer stored in @var{buffer}
with a length of @var{buflen} into a newly created MPI returned which
will be stored at the address of @var{r_mpi}. For certain formats the
length argument is not required and should be passed as @code{0}. After a
successful operation the variable @var{nscanned} receives the number of
bytes actually scanned unless @var{nscanned} was given as
@code{NULL}. @var{format} describes the format of the MPI as stored in
@var{buffer}:
@table @code
@item GCRYMPI_FMT_STD
2-complement stored without a length header.
@item GCRYMPI_FMT_PGP
As used by OpenPGP (only defined as unsigned). This is basically
@code{GCRYMPI_FMT_STD} with a 2 byte big endian length header.
@item GCRYMPI_FMT_SSH
As used in the Secure Shell protocol. This is @code{GCRYMPI_FMT_STD}
with a 4 byte big endian header.
@item GCRYMPI_FMT_HEX
Stored as a C style string with each byte of the MPI encoded as 2 hex
digits. When using this format, @var{buflen} must be zero.
@item GCRYMPI_FMT_USG
Simple unsigned integer.
@end table
@noindent
Note that all of the above formats store the integer in big-endian
format (MSB first).
@end deftypefun
@deftypefun gcry_error_t gcry_mpi_print (@w{enum gcry_mpi_format @var{format}}, @w{unsigned char *@var{buffer}}, @w{size_t @var{buflen}}, @w{size_t *@var{nwritten}}, @w{const gcry_mpi_t @var{a}})
Convert the MPI @var{a} into an external representation described by
@var{format} (see above) and store it in the provided @var{buffer}
which has a usable length of at least the @var{buflen} bytes. If
@var{nwritten} is not NULL, it will receive the number of bytes
actually stored in @var{buffer} after a successful operation.
@end deftypefun
@deftypefun gcry_error_t gcry_mpi_aprint (@w{enum gcry_mpi_format @var{format}}, @w{unsigned char **@var{buffer}}, @w{size_t *@var{nbytes}}, @w{const gcry_mpi_t @var{a}})
Convert the MPI @var{a} into an external representation described by
@var{format} (see above) and store it in a newly allocated buffer which
address will be stored in the variable @var{buffer} points to. The
number of bytes stored in this buffer will be stored in the variable
@var{nbytes} points to, unless @var{nbytes} is @code{NULL}.
@end deftypefun
@deftypefun void gcry_mpi_dump (@w{const gcry_mpi_t @var{a}})
Dump the value of @var{a} in a format suitable for debugging to
Libgcrypt's logging stream. Note that one leading space but no trailing
space or linefeed will be printed. It is okay to pass @code{NULL} for
@var{a}.
@end deftypefun
@node Calculations
@section Calculations
@noindent
Basic arithmetic operations:
@deftypefun void gcry_mpi_add (@w{gcry_mpi_t @var{w}}, @w{gcry_mpi_t @var{u}}, @w{gcry_mpi_t @var{v}})
@math{@var{w} = @var{u} + @var{v}}.
@end deftypefun
@deftypefun void gcry_mpi_add_ui (@w{gcry_mpi_t @var{w}}, @w{gcry_mpi_t @var{u}}, @w{unsigned long @var{v}})
@math{@var{w} = @var{u} + @var{v}}. Note that @var{v} is an unsigned integer.
@end deftypefun
@deftypefun void gcry_mpi_addm (@w{gcry_mpi_t @var{w}}, @w{gcry_mpi_t @var{u}}, @w{gcry_mpi_t @var{v}}, @w{gcry_mpi_t @var{m}})
@math{@var{w} = @var{u} + @var{v} \bmod @var{m}}.
@end deftypefun
@deftypefun void gcry_mpi_sub (@w{gcry_mpi_t @var{w}}, @w{gcry_mpi_t @var{u}}, @w{gcry_mpi_t @var{v}})
@math{@var{w} = @var{u} - @var{v}}.
@end deftypefun
@deftypefun void gcry_mpi_sub_ui (@w{gcry_mpi_t @var{w}}, @w{gcry_mpi_t @var{u}}, @w{unsigned long @var{v}})
@math{@var{w} = @var{u} - @var{v}}. @var{v} is an unsigned integer.
@end deftypefun
@deftypefun void gcry_mpi_subm (@w{gcry_mpi_t @var{w}}, @w{gcry_mpi_t @var{u}}, @w{gcry_mpi_t @var{v}}, @w{gcry_mpi_t @var{m}})
@math{@var{w} = @var{u} - @var{v} \bmod @var{m}}.
@end deftypefun
@deftypefun void gcry_mpi_mul (@w{gcry_mpi_t @var{w}}, @w{gcry_mpi_t @var{u}}, @w{gcry_mpi_t @var{v}})
@math{@var{w} = @var{u} * @var{v}}.
@end deftypefun
@deftypefun void gcry_mpi_mul_ui (@w{gcry_mpi_t @var{w}}, @w{gcry_mpi_t @var{u}}, @w{unsigned long @var{v}})
@math{@var{w} = @var{u} * @var{v}}. @var{v} is an unsigned integer.
@end deftypefun
@deftypefun void gcry_mpi_mulm (@w{gcry_mpi_t @var{w}}, @w{gcry_mpi_t @var{u}}, @w{gcry_mpi_t @var{v}}, @w{gcry_mpi_t @var{m}})
@math{@var{w} = @var{u} * @var{v} \bmod @var{m}}.
@end deftypefun
@deftypefun void gcry_mpi_mul_2exp (@w{gcry_mpi_t @var{w}}, @w{gcry_mpi_t @var{u}}, @w{unsigned long @var{e}})
@c FIXME: I am in need for a real TeX{info} guru:
@c I don't know why TeX can grok @var{e} here.
@math{@var{w} = @var{u} * 2^e}.
@end deftypefun
@deftypefun void gcry_mpi_div (@w{gcry_mpi_t @var{q}}, @w{gcry_mpi_t @var{r}}, @w{gcry_mpi_t @var{dividend}}, @w{gcry_mpi_t @var{divisor}}, @w{int @var{round}})
@math{@var{q} = @var{dividend} / @var{divisor}}, @math{@var{r} =
@var{dividend} \bmod @var{divisor}}. @var{q} and @var{r} may be passed
as @code{NULL}. @var{round} should be negative or 0.
@end deftypefun
@deftypefun void gcry_mpi_mod (@w{gcry_mpi_t @var{r}}, @w{gcry_mpi_t @var{dividend}}, @w{gcry_mpi_t @var{divisor}})
@math{@var{r} = @var{dividend} \bmod @var{divisor}}.
@end deftypefun
@deftypefun void gcry_mpi_powm (@w{gcry_mpi_t @var{w}}, @w{const gcry_mpi_t @var{b}}, @w{const gcry_mpi_t @var{e}}, @w{const gcry_mpi_t @var{m}})
@c I don't know why TeX can grok @var{e} here.
@math{@var{w} = @var{b}^e \bmod @var{m}}.
@end deftypefun
@deftypefun int gcry_mpi_gcd (@w{gcry_mpi_t @var{g}}, @w{gcry_mpi_t @var{a}}, @w{gcry_mpi_t @var{b}})
Set @var{g} to the greatest common divisor of @var{a} and @var{b}.
Return true if the @var{g} is 1.
@end deftypefun
@deftypefun int gcry_mpi_invm (@w{gcry_mpi_t @var{x}}, @w{gcry_mpi_t @var{a}}, @w{gcry_mpi_t @var{m}})
Set @var{x} to the multiplicative inverse of @math{@var{a} \bmod @var{m}}.
Return true if the inverse exists.
@end deftypefun
@node Comparisons
@section Comparisons
@noindent
The next 2 functions are used to compare MPIs:
@deftypefun int gcry_mpi_cmp (@w{const gcry_mpi_t @var{u}}, @w{const gcry_mpi_t @var{v}})
Compare the multi-precision-integers number @var{u} and @var{v}
returning 0 for equality, a positive value for @var{u} > @var{v} and a
negative for @var{u} < @var{v}.
@end deftypefun
@deftypefun int gcry_mpi_cmp_ui (@w{const gcry_mpi_t @var{u}}, @w{unsigned long @var{v}})
Compare the multi-precision-integers number @var{u} with the unsigned
integer @var{v} returning 0 for equality, a positive value for @var{u} >
@var{v} and a negative for @var{u} < @var{v}.
@end deftypefun
@node Bit manipulations
@section Bit manipulations
@noindent
There are a couple of functions to get information on arbitrary bits
in an MPI and to set or clear them:
@deftypefun {unsigned int} gcry_mpi_get_nbits (@w{gcry_mpi_t @var{a}})
Return the number of bits required to represent @var{a}.
@end deftypefun
@deftypefun int gcry_mpi_test_bit (@w{gcry_mpi_t @var{a}}, @w{unsigned int @var{n}})
Return true if bit number @var{n} (counting from 0) is set in @var{a}.
@end deftypefun
@deftypefun void gcry_mpi_set_bit (@w{gcry_mpi_t @var{a}}, @w{unsigned int @var{n}})
Set bit number @var{n} in @var{a}.
@end deftypefun
@deftypefun void gcry_mpi_clear_bit (@w{gcry_mpi_t @var{a}}, @w{unsigned int @var{n}})
Clear bit number @var{n} in @var{a}.
@end deftypefun
@deftypefun void gcry_mpi_set_highbit (@w{gcry_mpi_t @var{a}}, @w{unsigned int @var{n}})
Set bit number @var{n} in @var{a} and clear all bits greater than @var{n}.
@end deftypefun
@deftypefun void gcry_mpi_clear_highbit (@w{gcry_mpi_t @var{a}}, @w{unsigned int @var{n}})
Clear bit number @var{n} in @var{a} and all bits greater than @var{n}.
@end deftypefun
@deftypefun void gcry_mpi_rshift (@w{gcry_mpi_t @var{x}}, @w{gcry_mpi_t @var{a}}, @w{unsigned int @var{n}})
Shift the value of @var{a} by @var{n} bits to the right and store the
result in @var{x}.
@end deftypefun
@deftypefun void gcry_mpi_lshift (@w{gcry_mpi_t @var{x}}, @w{gcry_mpi_t @var{a}}, @w{unsigned int @var{n}})
Shift the value of @var{a} by @var{n} bits to the left and store the
result in @var{x}.
@end deftypefun
@node Miscellaneous
@section Miscellaneous
@deftypefun gcry_mpi_t gcry_mpi_set_opaque (@w{gcry_mpi_t @var{a}}, @w{void *@var{p}}, @w{unsigned int @var{nbits}})
Store @var{nbits} of the value @var{p} points to in @var{a} and mark
@var{a} as an opaque value (i.e. an value that can't be used for any
math calculation and is only used to store an arbitrary bit pattern in
@var{a}).
WARNING: Never use an opaque MPI for actual math operations. The only
valid functions are gcry_mpi_get_opaque and gcry_mpi_release. Use
gcry_mpi_scan to convert a string of arbitrary bytes into an MPI.
@end deftypefun
@deftypefun {void *} gcry_mpi_get_opaque (@w{gcry_mpi_t @var{a}}, @w{unsigned int *@var{nbits}})
Return a pointer to an opaque value stored in @var{a} and return its
size in @var{nbits}. Note that the returned pointer is still owned by
@var{a} and that the function should never be used for an non-opaque
MPI.
@end deftypefun
@deftypefun void gcry_mpi_set_flag (@w{gcry_mpi_t @var{a}}, @w{enum gcry_mpi_flag @var{flag}})
Set the @var{flag} for the MPI @var{a}. Currently only the flag
@code{GCRYMPI_FLAG_SECURE} is allowed to convert @var{a} into an MPI
stored in "secure memory".
@end deftypefun
@deftypefun void gcry_mpi_clear_flag (@w{gcry_mpi_t @var{a}}, @w{enum gcry_mpi_flag @var{flag}})
Clear @var{flag} for the multi-precision-integers @var{a}. Note that
this function is currently useless as no flags are allowed.
@end deftypefun
@deftypefun int gcry_mpi_get_flag (@w{gcry_mpi_t @var{a}}, @w{enum gcry_mpi_flag @var{flag}})
Return true when the @var{flag} is set for @var{a}.
@end deftypefun
@deftypefun void gcry_mpi_randomize (@w{gcry_mpi_t @var{w}}, @w{unsigned int @var{nbits}}, @w{enum gcry_random_level @var{level}})
Set the multi-precision-integers @var{w} to a random value of
@var{nbits}, using random data quality of level @var{level}. In case
@var{nbits} is not a multiple of a byte, @var{nbits} is rounded up to
the next byte boundary. When using a @var{level} of
@code{GCRY_WEAK_RANDOM} this function makes use of
@code{gcry_create_nonce}.
@end deftypefun
@c **********************************************************
@c ******************** Prime numbers ***********************
@c **********************************************************
@node Prime numbers
@chapter Prime numbers
@menu
* Generation:: Generation of new prime numbers.
* Checking:: Checking if a given number is prime.
@end menu
@node Generation
@section Generation
@deftypefun gcry_error_t gcry_prime_generate (gcry_mpi_t *@var{prime},unsigned int @var{prime_bits}, unsigned int @var{factor_bits}, gcry_mpi_t **@var{factors}, gcry_prime_check_func_t @var{cb_func}, void *@var{cb_arg}, gcry_random_level_t @var{random_level}, unsigned int @var{flags})
Generate a new prime number of @var{prime_bits} bits and store it in
@var{prime}. If @var{factor_bits} is non-zero, one of the prime factors
of (@var{prime} - 1) / 2 must be @var{factor_bits} bits long. If
@var{factors} is non-zero, allocate a new, @code{NULL}-terminated array
holding the prime factors and store it in @var{factors}. @var{flags}
might be used to influence the prime number generation process.
@end deftypefun
@deftypefun gcry_error_t gcry_prime_group_generator (gcry_mpi_t *@var{r_g}, gcry_mpi_t @var{prime}, gcry_mpi_t *@var{factors}, gcry_mpi_t @var{start_g})
Find a generator for @var{prime} where the factorization of
(@var{prime}-1) is in the @code{NULL} terminated array @var{factors}.
Return the generator as a newly allocated MPI in @var{r_g}. If
@var{start_g} is not NULL, use this as the start for the search.
@end deftypefun
@deftypefun void gcry_prime_release_factors (gcry_mpi_t *@var{factors})
Convenience function to release the @var{factors} array.
@end deftypefun
@node Checking
@section Checking
@deftypefun gcry_error_t gcry_prime_check (gcry_mpi_t @var{p}, unsigned int @var{flags})
Check wether the number @var{p} is prime. Returns zero in case @var{p}
is indeed a prime, returns @code{GPG_ERR_NO_PRIME} in case @var{p} is
not a prime and a different error code in case something went horribly
wrong.
@end deftypefun
@c **********************************************************
@c ******************** Utilities ***************************
@c **********************************************************
@node Utilities
@chapter Utilities
@menu
* Memory allocation:: Functions related with memory allocation.
@end menu
@node Memory allocation
@section Memory allocation
@deftypefun {void *} gcry_malloc (size_t @var{n})
This function tries to allocate @var{n} bytes of memory. On success
it returns a pointer to the memory area, in an out-of-core condition,
it returns NULL.
@end deftypefun
@deftypefun {void *} gcry_malloc_secure (size_t @var{n})
Like @code{gcry_malloc}, but uses secure memory.
@end deftypefun
@deftypefun {void *} gcry_calloc (size_t @var{n}, size_t @var{m})
This function allocates a cleared block of memory (i.e. initialized with
zero bytes) long enough to contain a vector of @var{n} elements, each of
size @var{m} bytes. On success it returns a pointer to the memory
block; in an out-of-core condition, it returns NULL.
@end deftypefun
@deftypefun {void *} gcry_calloc_secure (size_t @var{n}, size_t @var{m})
Like @code{gcry_calloc}, but uses secure memory.
@end deftypefun
@deftypefun {void *} gcry_realloc (void *@var{p}, size_t @var{n})
This function tries to resize the memory area pointed to by @var{p} to
@var{n} bytes. On success it returns a pointer to the new memory
area, in an out-of-core condition, it returns NULL. Depending on
whether the memory pointed to by @var{p} is secure memory or not,
gcry_realloc tries to use secure memory as well.
@end deftypefun
@deftypefun void gcry_free (void *@var{p})
Release the memory area pointed to by @var{p}.
@end deftypefun
@c **********************************************************
@c ***************** Architecure Overview *****************
@c **********************************************************
@node Architecture
@chapter Architecture
This chapter describes the internal architecture of Libgcrypt.
Libgcrypt is a function library written in ISO C-90. Any compliant
compiler should be able to build Libgcrypt as long as the target is
either a POSIX platform or compatible to the API used by Windows NT.
Provisions have been take so that the library can be directly used from
C++ applications; however building with a C++ compiler is not supported.
Building Libgcrypt is done by using the common @code{./configure && make}
approach. The configure command is included in the source distribution
and as a portable shell script it works on any Unix-alike system. The
result of running the configure script are a C header file
(@file{config.h}), customized Makefiles, the setup of symbolic links and
a few other things. After that the make tool builds and optionally
installs the library and the documentation. See the files
@file{INSTALL} and @file{README} in the source distribution on how to do
this.
Libgcrypt is developed using a Subversion@footnote{A version control
system available for many platforms} repository. Although all released
versions are tagged in this repository, they should not be used to build
production versions of Libgcrypt. Instead released tarballs should be
used. These tarballs are available from several places with the master
copy at @indicateurl{ftp://ftp.gnupg.org/gcrypt/libgcrypt/}.
Announcements of new releases are posted to the
@indicateurl{gnupg-announce@@gnupg.org} mailing list@footnote{See
@url{http://www.gnupg.org/documentation/mailing-lists.en.html} for
details.}.
@float Figure,fig:subsystems
@caption{Libgcrypt subsystems}
@center @image{libgcrypt-modules, 150mm,,Libgcrypt subsystems}
@end float
Libgcrypt consists of several subsystems (@pxref{fig:subsystems}) and
all these subsystems provide a public API; this includes the helper
subsystems like the one for S-expressions. The API style depends on the
subsystem; in general an open-use-close approach is implemented. The
open returns a handle to a context used for all further operations on
this handle, several functions may then be used on this handle and a
final close function releases all resources associated with the handle.
@menu
* Public-Key Subsystem Architecture:: About public keys.
* Symmetric Encryption Subsystem Architecture:: About standard ciphers.
* Hashing and MACing Subsystem Architecture:: About hashing.
* Multi-Precision-Integer Subsystem Architecture:: About big integers.
* Prime-Number-Generator Subsystem Architecture:: About prime numbers.
* Random-Number Subsystem Architecture:: About random stuff.
@c * Helper Subsystems Architecture:: About other stuff.
@end menu
@node Public-Key Subsystem Architecture
@section Public-Key Architecture
Libgcrypt implements two interfaces for public key cryptography: The
standard interface is PK interface using functions in the
@code{gcry_pk_} name space. The AC interface in an alternative one
which is now deprecated and will not be further described. The AC
interface is also disabled in FIPS mode.
Because public key cryptography is almost always used to process small
amounts of data (hash values or session keys), the interface is not
implemented using the open-use-close paradigm, but with single
self-contained functions. Due to the wide variety of parameters
required by different algorithms S-expressions, as flexible way to
convey these parameters, are used. There is a set of helper functions
to work with these S-expressions.
@c see @xref{S-expression Subsystem Architecture}.
Aside of functions to register new algorithms, map algorithms names to
algorithms identifiers and to lookup properties of a key, the
following main functions are available:
@table @code
@item gcry_pk_encrypt
Encrypt data using a public key.
@item gcry_pk_decrypt
Decrypt data using a private key.
@item gcry_pk_sign
Sign data using a private key.
@item gcry_pk_verify
Verify that a signature matches the data.
@item gcry_pk_testkey
Perform a consistency over a public or private key.
@item gcry_pk_genkey
Create a new public/private key pair.
@end table
With the help of the module registration system all these functions
lookup the module implementing the algorithm and pass the actual work
to that module. The parsing of the S-expression input and the
construction of S-expression for the return values is done by the high
level code (@file{cipher/pubkey.c}). Thus the internal interface
between the algorithm modules and the high level functions passes data
in a custom format. The interface to the modules is published
(@file{gcrypt-modules.h}) so that it can used to register external
implementations of algorithms with Libgcrypt. However, for some
algorithms this module interface is to limited and thus for the
internal modules an extra interface is sometimes used to convey more
information.
By default Libgcrypt uses a blinding technique for RSA decryption to
mitigate real world timing attacks over a network: Instead of using
the RSA decryption directly, a blinded value @math{y = x r^{e} \bmod n}
is decrypted and the unblinded value @math{x' = y' r^{-1} \bmod n}
returned. The blinding value @math{r} is a random value with the size
of the modulus @math{n} and generated with @code{GCRY_WEAK_RANDOM}
random level.
@cindex X9.31
@cindex FIPS 186
The algorithm used for RSA and DSA key generation depends on whether
Libgcrypt is operated in standard or in FIPS mode. In standard mode
an algorithm based on the Lim-Lee prime number generator is used. In
FIPS mode RSA keys are generated as specified in ANSI X9.31 (1998) and
DSA keys as specified in FIPS 186-2.
@node Symmetric Encryption Subsystem Architecture
@section Symmetric Encryption Subsystem Architecture
The interface to work with symmetric encryption algorithms is made up
of functions from the @code{gcry_cipher_} name space. The
implementation follows the open-use-close paradigm and uses registered
algorithm modules for the actual work. Unless a module implements
optimized cipher mode implementations, the high level code
(@file{cipher/cipher.c}) implements the modes and calls the core
algorithm functions to process each block.
The most important functions are:
@table @code
@item gcry_cipher_open
Create a new instance to encrypt or decrypt using a specified
algorithm and mode.
@item gcry_cipher_close
Release an instance.
@item gcry_cipher_setkey
Set a key to be used for encryption or decryption.
@item gcry_cipher_setiv
Set an initialization vector to be used for encryption or decryption.
@item gcry_cipher_encrypt
@itemx gcry_cipher_decrypt
Encrypt or decrypt data. These functions may be called with arbitrary
amounts of data and as often as needed to encrypt or decrypt all data.
@end table
There are also functions to query properties of algorithms or context,
like block length, key length, map names or to enable features like
padding methods.
@node Hashing and MACing Subsystem Architecture
@section Hashing and MACing Subsystem Architecture
The interface to work with message digests and CRC algorithms is made
up of functions from the @code{gcry_md_} name space. The
implementation follows the open-use-close paradigm and uses registered
algorithm modules for the actual work. Although CRC algorithms are
not considered cryptographic hash algorithms, they share enough
properties so that it makes sense to handle them in the same way.
It is possible to use several algorithms at once with one context and
thus compute them all on the same data.
The most important functions are:
@table @code
@item gcry_md_open
Create a new message digest instance and optionally enable one
algorithm. A flag may be used to turn the message digest algorithm
into a HMAC algorithm.
@item gcry_md_enable
Enable an additional algorithm for the instance.
@item gcry_md_setkey
Set the key for the MAC.
@item gcry_md_write
Pass more data for computing the message digest to an instance.
@item gcry_md_putc
Buffered version of @code{gcry_md_write} implemented as a macro.
@item gcry_md_read
Finalize the computation of the message digest or HMAC and return the
result.
@item gcry_md_close
Release an instance
@item gcry_md_hash_buffer
Convenience function to directly compute a message digest over a
memory buffer without the need to create an instance first.
@end table
There are also functions to query properties of algorithms or the
instance, like enabled algorithms, digest length, map algorithm names.
it is also possible to reset an instance or to copy the current state
of an instance at any time. Debug functions to write the hashed data
to files are available as well.
@node Multi-Precision-Integer Subsystem Architecture
@section Multi-Precision-Integer Subsystem Architecture
The implementation of Libgcrypt's big integer computation code is
based on an old release of GNU Multi-Precision Library (GMP). The
decision not to use the GMP library directly was due to stalled
development at that time and due to security requirements which could
not be provided by the code in GMP. As GMP does, Libgcrypt provides
high performance assembler implementations of low level code for
several CPUS to gain much better performance than with a generic C
implementation.
@noindent
Major features of Libgcrypt's multi-precision-integer code compared to
GMP are:
@itemize
@item
Avoidance of stack based allocations to allow protection against
swapping out of sensitive data and for easy zeroing of sensitive
intermediate results.
@item
Optional use of secure memory and tracking of its use so that results
are also put into secure memory.
@item
MPIs are identified by a handle (implemented as a pointer) to give
better control over allocations and to augment them with extra
properties like opaque data.
@item
Removal of unnecessary code to reduce complexity.
@item
Functions specialized for public key cryptography.
@end itemize
@node Prime-Number-Generator Subsystem Architecture
@section Prime-Number-Generator Subsystem Architecture
Libgcrypt provides an interface to its prime number generator. These
functions make use of the internal prime number generator which is
required for the generation for public key key pairs. The plain prime
checking function is exported as well.
The generation of random prime numbers is based on the Lim and Lee
algorithm to create practically save primes.@footnote{Chae Hoon Lim
and Pil Joong Lee. A key recovery attack on discrete log-based shemes
using a prime order subgroup. In Burton S. Kaliski Jr., editor,
Advances in Cryptology: Crypto '97, pages 249­-263, Berlin /
Heidelberg / New York, 1997. Springer-Verlag. Described on page 260.}
This algorithm creates a pool of smaller primes, select a few of them
to create candidate primes of the form @math{2 * p_0 * p_1 * ... * p_n
+ 1}, tests the candidate for primality and permutates the pool until
a prime has been found. It is possible to clamp one of the small
primes to a certain size to help DSA style algorithms. Because most
of the small primes in the pool are not used for the resulting prime
number, they are saved for later use (see @code{save_pool_prime} and
@code{get_pool_prime} in @file{cipher/primegen.c}). The prime
generator optionally supports the finding of an appropriate generator.
@noindent
The primality test works in three steps:
@enumerate
@item
The standard sieve algorithm using the primes up to 4999 is used as a
quick first check.
@item
A Fermat test filters out almost all non-primes.
@item
A 5 round Rabin-Miller test is finally used. The first round uses a
witness of 2, whereas the next rounds use a random witness.
@end enumerate
To support the generation of RSA and DSA keys in FIPS mode according
to X9.31 and FIPS 186-2, Libgcrypt implements two additional prime
generation functions: @code{_gcry_derive_x931_prime} and
@code{_gcry_generate_fips186_2_prime}. These functions are internal
and not available through the public API.
@node Random-Number Subsystem Architecture
@section Random-Number Subsystem Architecture
Libgcrypt provides 3 levels or random quality: The level
@code{GCRY_VERY_STRONG_RANDOM} usually used for key generation, the
level @code{GCRY_STRONG_RANDOM} for all other strong random
requirements and the function @code{gcry_create_nonce} which is used
for weaker usages like nonces. There is also a level
@code{GCRY_WEAK_RANDOM} which in general maps to
@code{GCRY_STRONG_RANDOM} except when used with the function
@code{gcry_mpi_randomize}, where it randomizes an
multi-precision-integer using the @code{gcry_create_nonce} function.
@noindent
There are two distinct random generators available:
@itemize
@item
The Continuously Seeded Pseudo Random Number Generator (CSPRNG), which
is based on the classic GnuPG derived big pool implementation.
Implemented in @code{random/random-csprng.c} and used by default.
@item
A FIPS approved ANSI X9.31 PRNG using AES with a 128 bit key. Implemented in
@code{random/random-fips.c} and used if Libgcrypt is in FIPS mode.
@end itemize
@noindent
Both generators make use of so-called entropy gathering modules:
@table @asis
@item rndlinux
Uses the operating system provided
@file{/dev/random} and @file{/dev/urandom} devices.
@item rndunix
Runs several operating system commands to collect entropy from sources
like virtual machine and process statistics. It is a kind of
poor-man's @code{/dev/random} implementation. It is not available in
FIPS mode.
@item rndegd
Uses the operating system provided Entropy Gathering Daemon (EGD).
The EGD basically uses the same algorithms as rndunix does. However
as a system daemon it keeps on running and thus can serve several
processes requiring entropy input and does not waste collected entropy
if the application does not need all the collected entropy. It is not
available in FIPS mode.
@item rndw32
Targeted for the Microsoft Windows OS. It uses certain properties of
that system and is the only gathering module available for that OS.
@item rndhw
Extra module to collect additional entropy by utilizing a hardware
random number generator. As of now the only supported hardware RNG is
the Padlock engine of VIA (Centaur) CPUs. It is not available in FIPS
mode.
@end table
@menu
* CSPRNG Description:: Description of the CSPRNG.
* FIPS PRNG Description:: Description of the FIPS X9.31 PRNG.
@end menu
@node CSPRNG Description
@subsection Description of the CSPRNG
This random number generator is loosely modelled after the one
described in Peter Gutmann's paper: "Software Generation of
Practically Strong Random Numbers".@footnote{Also described in chapter
6 of his book "Cryptographic Security Architecture", New York, 2004,
ISBN 0-387-95387-6.}
A pool of 600 bytes is used and mixed using the core RIPE-MD160 hash
transform function. Several extra features are used to make the
robust against a wide variety of attacks and to protect against
failures of subsystems. The state of the generator may be saved to a
file and initially seed form a file.
Depending on how Libgcrypt was build the generator is able to select
the best working entropy gathering module. It makes use of the slow
and fast collection methods and requires the pool to initially seeded
form the slow gatherer or a seed file. An entropy estimation is used
to mix in enough data from the gather modules before returning the
actual random output. Process fork detection and protection is
implemented.
@c FIXME: The design and implementaion needs a more verbose description.
The implementation of the nonce generator (for
@code{gcry_create_nonce}) is a straightforward repeated hash design: A
28 byte buffer is initially seeded with the PID and the time in
seconds in the first 20 bytes and with 8 bytes of random taken from
the @code{GCRY_STRONG_RANDOM} generator. Random numbers are then
created by hashing all the 28 bytes with SHA-1 and saving that again
in the first 20 bytes. The hash is also returned as result.
@node FIPS PRNG Description
@subsection Description of the FIPS X9.31 PRNG
The core of this deterministic random number generator is implemented
according to the document ``NIST-Recommended Random Number Generator
Based on ANSI X9.31 Appendix A.2.4 Using the 3-Key Triple DES and AES
Algorithms'', dated 2005-01-31. This implementation uses the AES
variant.
The generator is based on contexts to utilize the same core functions
for all random levels as required by the high-level interface. All
random generators return their data in 128 bit blocks. If the caller
requests less bits, the extra bits are not used. The key for each
generator is only set once at the first time a generator context is
used. The seed value is set along with the key and again after 1000
output blocks.
On Unix like systems the @code{GCRY_VERY_STRONG_RANDOM} and
@code{GCRY_STRONG_RANDOM} generators are keyed and seeded using the
rndlinux module with the @file{/dev/radnom} device. Thus these
generators may block until the OS kernel has collected enough entropy.
When used with Microsoft Windows the rndw32 module is used instead.
The generator used for @code{gcry_create_nonce} is keyed and seeded
from the @code{GCRY_STRONG_RANDOM} generator. Thus is may also block
if the @code{GCRY_STRONG_RANDOM} generator has not yet been used
before and thus gets initialized on the first use by
@code{gcry_create_nonce}. This special treatment is justified by the
weaker requirements for a nonce generator and to save precious kernel
entropy for use by the ``real'' random generators.
A self-test facility uses a separate context to check the
functionality of the core X9.31 functions using a known answers test.
During runtime each output block is compared to the previous one to
detect a stucked generator.
The DT value for the generator is made up of the current time down to
microseconds (if available) and a free running 64 bit counter. When
used with the test context the DT value is taken from the context and
incremented on each use.
@c @node Helper Subsystems Architecture
@c @section Helper Subsystems Architecture
@c
@c There are a few smaller subsystems which are mainly used internally by
@c Libgcrypt but also available to applications.
@c
@c @menu
@c * S-expression Subsystem Architecture:: Details about the S-expression architecture.
@c * Memory Subsystem Architecture:: Details about the memory allocation architecture.
@c * Miscellaneous Subsystems Architecture:: Details about other subsystems.
@c @end menu
@c
@c @node S-expression Subsystem Architecture
@c @subsection S-expression Subsystem Architecture
@c
@c Libgcrypt provides an interface to S-expression to create and parse
@c them. To use an S-expression with Libgcrypt it needs first be
@c converted into the internal representation used by Libgcrypt (the type
@c @code{gcry_sexp_t}). The conversion functions support a large subset
@c of the S-expression specification and further fature a printf like
@c function to convert a list of big integers or other binary data into
@c an S-expression.
@c
@c Libgcrypt currently implements S-expressions using a tagged linked
@c list. However this is not exposed to an application and may be
@c changed in future releases to reduce overhead when already working
@c with canonically encoded S-expressions. Secure memory is supported by
@c this S-expressions implementation.
@c
@c @node Memory Subsystem Architecture
@c @subsection Memory Subsystem Architecture
@c
@c TBD.
@c
@c
@c @node Miscellaneous Subsystems Architecture
@c @subsection Miscellaneous Subsystems Architecture
@c
@c TBD.
@c
@c
@c **********************************************************
@c ******************* Appendices *************************
@c **********************************************************
@c ********************************************
@node Self-Tests
@appendix Description of the Self-Tests
In addition to the build time regression test suite, Libgcrypt
implements self-tests to be performed at runtime. Which self-tests
are actually used depends on the mode Libgcrypt is used in. In
standard mode a limited set of self-tests is run at the time an
algorithm is first used. Note that not all algorithms feature a
self-test in standard mode. The @code{GCRYCTL_SELFTEST} control
command may be used to run all implemented self-tests at any time;
this will even run more tests than those run in FIPS mode.
If any of the self-tests fails, the library immediately returns an
error code to the caller. If Libgcrypt is in FIPS mode the self-tests
will be performed within the ``Self-Test'' state and any failure puts
the library into the ``Error'' state.
@c --------------------------------
@section Power-Up Tests
Power-up tests are only performed if Libgcrypt is in FIPS mode.
@subsection Symmetric Cipher Algorithm Power-Up Tests
The following symmetric encryption algorithm tests are run during
power-up:
@table @asis
@item 3DES
To test the 3DES 3-key EDE encryption in ECB mode these tests are
run:
@enumerate
@item
A known answer test is run on a 64 bit test vector processed by 64
rounds of Single-DES block encryption and decryption using a key
changed with each round.
@item
A known answer test is run on a 64 bit test vector processed by 16
rounds of 2-key and 3-key Triple-DES block encryption and decryptions
using a key changed with each round.
@item
10 known answer tests using 3-key Triple-DES EDE encryption, comparing
the ciphertext to the known value, then running a decryption and
comparing it to the initial plaintext.
@end enumerate
(@code{cipher/des.c:selftest})
@item AES-128
A known answer tests is run using one test vector and one test
key with AES in ECB mode. (@code{cipher/rijndael.c:selftest_basic_128})
@item AES-192
A known answer tests is run using one test vector and one test
key with AES in ECB mode. (@code{cipher/rijndael.c:selftest_basic_192})
@item AES-256
A known answer tests is run using one test vector and one test key
with AES in ECB mode. (@code{cipher/rijndael.c:selftest_basic_256})
@end table
@subsection Hash Algorithm Power-Up Tests
The following hash algorithm tests are run during power-up:
@table @asis
@item SHA-1
A known answer test using the string @code{"abc"} is run.
(@code{cipher/@/sha1.c:@/selftests_sha1})
@item SHA-224
A known answer test using the string @code{"abc"} is run.
(@code{cipher/@/sha256.c:@/selftests_sha224})
@item SHA-256
A known answer test using the string @code{"abc"} is run.
(@code{cipher/@/sha256.c:@/selftests_sha256})
@item SHA-384
A known answer test using the string @code{"abc"} is run.
(@code{cipher/@/sha512.c:@/selftests_sha384})
@item SHA-512
A known answer test using the string @code{"abc"} is run.
(@code{cipher/@/sha512.c:@/selftests_sha512})
@end table
@subsection MAC Algorithm Power-Up Tests
The following MAC algorithm tests are run during power-up:
@table @asis
@item HMAC SHA-1
A known answer test using 9 byte of data and a 64 byte key is run.
(@code{cipher/hmac-tests.c:selftests_sha1})
@item HMAC SHA-224
A known answer test using 28 byte of data and a 4 byte key is run.
(@code{cipher/hmac-tests.c:selftests_sha224})
@item HMAC SHA-256
A known answer test using 28 byte of data and a 4 byte key is run.
(@code{cipher/hmac-tests.c:selftests_sha256})
@item HMAC SHA-384
A known answer test using 28 byte of data and a 4 byte key is run.
(@code{cipher/hmac-tests.c:selftests_sha384})
@item HMAC SHA-512
A known answer test using 28 byte of data and a 4 byte key is run.
(@code{cipher/hmac-tests.c:selftests_sha512})
@end table
@subsection Random Number Power-Up Test
The DRNG is tested during power-up this way:
@enumerate
@item
Requesting one block of random using the public interface to check
general working and the duplicated block detection.
@item
3 know answer tests using pre-defined keys, seed and initial DT
values. For each test 3 blocks of 16 bytes are requested and compared
to the expected result. The DT value is incremented for each block.
@end enumerate
@subsection Public Key Algorithm Power-Up Tests
The public key algorithms are tested during power-up:
@table @asis
@item RSA
A pre-defined 1024 bit RSA key is used and these tests are run
in turn:
@enumerate
@item
Conversion of S-expression to internal format.
(@code{cipher/@/rsa.c:@/selftests_rsa})
@item
Private key consistency check.
(@code{cipher/@/rsa.c:@/selftests_rsa})
@item
A pre-defined 20 byte value is signed with PKCS#1 padding for SHA-1.
The result is verified using the public key against the original data
and against modified data. (@code{cipher/@/rsa.c:@/selftest_sign_1024})
@item
A 1000 bit random value is encrypted and checked that it does not
match the orginal random value. The encrtypted result is then
decrypted and checked that it macthes the original random value.
(@code{cipher/@/rsa.c:@/selftest_encr_1024})
@end enumerate
@item DSA
A pre-defined 1024 bit DSA key is used and these tests are run in turn:
@enumerate
@item
Conversion of S-expression to internal format.
(@code{cipher/@/dsa.c:@/selftests_dsa})
@item
Private key consistency check.
(@code{cipher/@/dsa.c:@/selftests_dsa})
@item
A pre-defined 20 byte value is signed with PKCS#1 padding for
SHA-1. The result is verified using the public key against the
original data and against modified data.
(@code{cipher/@/dsa.c:@/selftest_sign_1024})
@end enumerate
@end table
@subsection Integrity Power-Up Tests
The integrity of the Libgcrypt is tested during power-up but only if
checking has been enabled at build time. The check works by computing
a HMAC SHA-256 checksum over the file used to load Libgcrypt into
memory. That checksum is compared against a checksum stored in a file
of the same name but with a single dot as a prefix and a suffix of
@file{.hmac}.
@subsection Critical Functions Power-Up Tests
The 3DES weak key detection is tested during power-up by calling the
detection function with keys taken from a table listening all weak
keys. The table itself is protected using a SHA-1 hash.
(@code{cipher/@/des.c:@/selftest})
@c --------------------------------
@section Conditional Tests
The conditional tests are performed if a certain contidion is met.
This may occur at any time; the library does not necessary enter the
``Self-Test'' state to run these tests but will transit to the
``Error'' state if a test failed.
@subsection Key-Pair Generation Tests
After an asymmetric key-pair has been generated, Libgcrypt runs a
pair-wise consistency tests on the generated key. On failure the
generated key is not used, an error code is returned and, if in FIPS
mode, the library is put into the ``Error'' state.
@table @asis
@item RSA
The test uses a random number 64 bits less the size of the modulus as
plaintext and runs an encryption and decryption operation in turn. The
encrypted value is checked to not match the plaintext and the result
of the decryption is checked to match the plaintext.
A new random number of the same size is generated, signed and verified
to test the correctness of the signing operation. As a second signing
test, the signature is modified by incrementing its value and then
verified with the expected result that the verification fails.
(@code{cipher/@/rsa.c:@/test_keys})
@item DSA
The test uses a random number of the size of the Q parameter to create
a signature and then checks that the signature verifies. As a second
signing test, the data is modified by incrementing its value and then
verified against the signature with the expected result that the
verification fails. (@code{cipher/@/dsa.c:@/test_keys})
@end table
@subsection Software Load Tests
Loading of extra modules into libgcrypt is disabled in FIPS mode and
thus no tests are
implemented. (@code{cipher/@/cipher.c:@/_gcry_cipher_register},
@code{cipher/@/md.c:@/_gcry_md_register},
@code{cipher/@/pubkey.c:@/_gcry_pk_register})
@subsection Manual Key Entry Tests
A manual key entry feature is not implemented in Libgcrypt.
@subsection Continuous RNG Tests
The continuous random number test is only used in FIPS mode. The RNG
generates blocks of 128 bit size; the first block generated per
context is saved in the context and another block is generated to be
returned to the caller. Each block is compared against the saved
block and then stored in the context. If a duplicated block is
detected an error is signaled and the libray is put into the
``Fatal-Error'' state.
(@code{random/@/random-fips.c:@/x931_aes_driver})
@c --------------------------------
@section Application Requested Tests
The application may requests tests at any time by means of the
@code{GCRYCTL_SELFTEST} control command. Note that using these tests
is not FIPS conform: Although Libgcrypt rejects all application
requests for services while running self-tests, it does not ensure
that no other operations of Libgcrypt are still being executed. Thus,
in FIPS mode an application requesting self-tests needs to power-cycle
Libgcrypt instead.
When self-tests are requested, Libgcrypt runs all the tests it does
during power-up as well as a few extra checks as described below.
@subsection Symmetric Cipher Algorithm Tests
The following symmetric encryption algorithm tests are run in addition
to the power-up tests:
@table @asis
@item AES-128
A known answer tests with test vectors taken from NIST SP800-38a and
using the high level functions is run for block modes CFB and OFB.
@end table
@subsection Hash Algorithm Tests
The following hash algorithm tests are run in addition to the
power-up tests:
@table @asis
@item SHA-1
@itemx SHA-224
@itemx SHA-256
@enumerate
@item
A known answer test using a 56 byte string is run.
@item
A known answer test using a string of one million letters "a" is run.
@end enumerate
(@code{cipher/@/sha1.c:@/selftests_sha1},
@code{cipher/@/sha256.c:@/selftests_sha224},
@code{cipher/@/sha256.c:@/selftests_sha256})
@item SHA-384
@item SHA-512
@enumerate
@item
A known answer test using a 112 byte string is run.
@item
A known answer test using a string of one million letters "a" is run.
@end enumerate
(@code{cipher/@/sha512.c:@/selftests_sha384},
@code{cipher/@/sha512.c:@/selftests_sha512})
@end table
@subsection MAC Algorithm Tests
The following MAC algorithm tests are run in addition to the power-up
tests:
@table @asis
@item HMAC SHA-1
@enumerate
@item
A known answer test using 9 byte of data and a 20 byte key is run.
@item
A known answer test using 9 byte of data and a 100 byte key is run.
@item
A known answer test using 9 byte of data and a 49 byte key is run.
@end enumerate
(@code{cipher/hmac-tests.c:selftests_sha1})
@item HMAC SHA-224
@itemx HMAC SHA-256
@itemx HMAC SHA-384
@itemx HMAC SHA-512
@enumerate
@item
A known answer test using 9 byte of data and a 20 byte key is run.
@item
A known answer test using 50 byte of data and a 20 byte key is run.
@item
A known answer test using 50 byte of data and a 26 byte key is run.
@item
A known answer test using 54 byte of data and a 131 byte key is run.
@item
A known answer test using 152 byte of data and a 131 byte key is run.
@end enumerate
(@code{cipher/@/hmac-tests.c:@/selftests_sha224},
@code{cipher/@/hmac-tests.c:@/selftests_sha256},
@code{cipher/@/hmac-tests.c:@/selftests_sha384},
@code{cipher/@/hmac-tests.c:@/selftests_sha512})
@end table
@c ********************************************
@node FIPS Mode
@appendix Description of the FIPS Mode
This appendix gives detailed information pertaining to the FIPS mode.
In particular, the changes to the standard mode and the finite state
machine are described. The self-tests required in this mode are
described in the appendix on self-tests.
@c -------------------------------
@section Restrictions in FIPS Mode
@noindent
If Libgcrypt is used in FIPS mode these restrictions are effective:
@itemize
@item
The cryptographic algorithms are restricted to this list:
@table @asis
@item GCRY_CIPHER_3DES
3 key EDE Triple-DES symmetric encryption.
@item GCRY_CIPHER_AES128
AES 128 bit symmetric encryption.
@item GCRY_CIPHER_AES192
AES 192 bit symmetric encryption.
@item GCRY_CIPHER_AES256
AES 256 bit symmetric encryption.
@item GCRY_MD_SHA1
SHA-1 message digest.
@item GCRY_MD_SHA224
SHA-224 message digest.
@item GCRY_MD_SHA256
SHA-256 message digest.
@item GCRY_MD_SHA384
SHA-384 message digest.
@item GCRY_MD_SHA512
SHA-512 message digest.
@item GCRY_MD_SHA1,GCRY_MD_FLAG_HMAC
HMAC using a SHA-1 message digest.
@item GCRY_MD_SHA224,GCRY_MD_FLAG_HMAC
HMAC using a SHA-224 message digest.
@item GCRY_MD_SHA256,GCRY_MD_FLAG_HMAC
HMAC using a SHA-256 message digest.
@item GCRY_MD_SHA384,GCRY_MD_FLAG_HMAC
HMAC using a SHA-384 message digest.
@item GCRY_MD_SHA512,GCRY_MD_FLAG_HMAC
HMAC using a SHA-512 message digest.
@item GCRY_PK_RSA
RSA encryption and signing.
@item GCRY_PK_DSA
DSA signing.
@end table
Note that the CRC algorithms are not considered cryptographic algorithms
and thus are in addition available.
@item
RSA key generation refuses to create a key with a keysize of
less than 1024 bits.
@item
DSA key generation refuses to create a key with a keysize other
than 1024 bits.
@item
The @code{transient-key} flag for RSA and DSA key generation is ignored.
@item
Support for the VIA Padlock engine is disabled.
@item
FIPS mode may only be used on systems with a /dev/random device.
Switching into FIPS mode on other systems will fail at runtime.
@item
Saving and loading a random seed file is ignored.
@item
An X9.31 style random number generator is used in place of the
large-pool-CSPRNG generator.
@item
The command @code{GCRYCTL_ENABLE_QUICK_RANDOM} is ignored.
@item
The Alternative Public Key Interface (@code{gcry_ac_xxx}) is not
supported and all API calls return an error.
@item
Registration of external modules is not supported.
@item
Message digest debugging is disabled.
@item
All debug output related to cryptographic data is suppressed.
@item
On-the-fly self-tests are not performed, instead self-tests are run
before entering operational state.
@item
The function @code{gcry_set_allocation_handler} may not be used. If
it is used Libgcrypt disables FIPS mode unless Enforced FIPS mode is
enabled, in which case Libgcrypt will enter the error state.
@item
The digest algorithm MD5 may not be used. If it is used Libgcrypt
disables FIPS mode unless Enforced FIPS mode is enabled, in which case
Libgcrypt will enter the error state.
@item
In Enforced FIPS mode the command @code{GCRYCTL_DISABLE_SECMEM} is
ignored. In standard FIPS mode it disables FIPS mode.
@item
A handler set by @code{gcry_set_outofcore_handler} is ignored.
@item
A handler set by @code{gcry_set_fatalerror_handler} is ignored.
@end itemize
Note that when we speak about disabling FIPS mode, it merely means
that the function @code{gcry_fips_mode_active} returns false; it does
not mean that any non FIPS algorithms are allowed.
@c ********************************************
@section FIPS Finite State Machine
The FIPS mode of libgcrypt implements a finite state machine (FSM) using
8 states (@pxref{tbl:fips-states}) and checks at runtime that only valid
transitions (@pxref{tbl:fips-state-transitions}) may happen.
@float Figure,fig:fips-fsm
@caption{FIPS mode state diagram}
@center @image{fips-fsm,150mm,,FIPS FSM Diagram}
@end float
@float Table,tbl:fips-states
@caption{FIPS mode states}
@noindent
States used by the FIPS FSM:
@table @asis
@item Power-Off
Libgcrypt is not runtime linked to another application. This usually
means that the library is not loaded into main memory. This state is
documentation only.
@item Power-On
Libgcrypt is loaded into memory and API calls may be made. Compiler
introducted constructor functions may be run. Note that Libgcrypt does
not implement any arbitrary constructor functions to be called by the
operating system
@item Init
The Libgcrypt initialization functions are performed and the library has
not yet run any self-test.
@item Self-Test
Libgcrypt is performing self-tests.
@item Operational
Libgcrypt is in the operational state and all interfaces may be used.
@item Error
Libgrypt is in the error state. When calling any FIPS relevant
interfaces they either return an error (@code{GPG_ERR_NOT_OPERATIONAL})
or put Libgcrypt into the Fatal-Error state and won't return.
@item Fatal-Error
Libgcrypt is in a non-recoverable error state and
will automatically transit into the Shutdown state.
@item Shutdown
Libgcrypt is about to be terminated and removed from the memory. The
application may at this point still runing cleanup handlers.
@end table
@end float
@float Table,tbl:fips-state-transitions
@caption{FIPS mode state transitions}
@noindent
The valid state transitions (@pxref{fig:fips-fsm}) are:
@table @code
@item 1
Power-Off to Power-On is implicitly done by the OS loading Libgcrypt as
a shared library and having it linked to an application.
@item 2
Power-On to Init is triggered by the application calling the
Libgcrypt intialization function @code{gcry_check_version}.
@item 3
Init to Self-Test is either triggred by a dedicated API call or implicit
by invoking a libgrypt service conrolled by the FSM.
@item 4
Self-Test to Operational is triggered after all self-tests passed
successfully.
@item 5
Operational to Shutdown is an artifical state without any direct action
in Libgcrypt. When reaching the Shutdown state the library is
deinitialized and can't return to any other state again.
@item 6
Shutdown to Power-off is the process of removing Libgcrypt from the
computer's memory. For obvious reasons the Power-Off state can't be
represented within Libgcrypt and thus this transition is for
documentation only.
@item 7
Operational to Error is triggered if Libgcrypt detected an application
error which can't be returned to the caller but still allows Libgcrypt
to properly run. In the Error state all FIPS relevant interfaces return
an error code.
@item 8
Error to Shutdown is similar to the Operational to Shutdown transition
(5).
@item 9
Error to Fatal-Error is triggred if Libgrypt detects an fatal error
while already being in Error state.
@item 10
Fatal-Error to Shutdown is automatically entered by Libgcrypt
after having reported the error.
@item 11
Power-On to Shutdown is an artifical state to document that Libgcrypt
has not ye been initializaed but the process is about to terminate.
@item 12
Power-On to Fatal-Error will be triggerd if certain Libgcrypt functions
are used without having reached the Init state.
@item 13
Self-Test to Fatal-Error is triggred by severe errors in Libgcrypt while
running self-tests.
@item 14
Self-Test to Error is triggred by a failed self-test.
@item 15
Operational to Fatal-Error is triggered if Libcrypt encountered a
non-recoverable error.
@item 16
Operational to Self-Test is triggred if the application requested to run
the self-tests again.
@item 17
Error to Self-Test is triggered if the application has requested to run
self-tests to get to get back into operational state after an error.
@item 18
Init to Error is triggered by errors in the initialization code.
@item 19
Init to Fatal-Error is triggered by non-recoverable errors in the
initialization code.
@item 20
Error to Error is triggered by errors while already in the Error
state.
@end table
@end float
@c ********************************************
@section FIPS Miscellaneous Information
Libgcrypt does not do any key management on itself; the application
needs to care about it. Keys which are passed to Libgcrypt should be
allocated in secure memory as available with the functions
@code{gcry_malloc_secure} and @code{gcry_calloc_secure}. By calling
@code{gcry_free} on this memory, the memory and thus the keys are
overwritten with zero bytes before releasing the memory.
For use with the random number generator, Libgcrypt generates 3
internal keys which are stored in the encryption contexts used by the
RNG. These keys are stored in secure memory for the lifetime of the
process. Application are required to use @code{GCRYCTL_TERM_SECMEM}
before process termination. This will zero out the entire secure
memory and thus also the encryption contexts with these keys.
@c **********************************************************
@c ************* Appendices (license etc.) ****************
@c **********************************************************
@include lgpl.texi
@include gpl.texi
@node Figures and Tables
@unnumbered List of Figures and Tables
@listoffloats Figure
@listoffloats Table
@node Concept Index
@unnumbered Concept Index
@printindex cp
@node Function and Data Index
@unnumbered Function and Data Index
@printindex fn
@bye
GCRYCTL_SET_RANDOM_DAEMON_SOCKET
GCRYCTL_USE_RANDOM_DAEMON
The random damon is still a bit experimental, thus we do not document
them. Note that they should be used during initialization and that
these functions are not really thread safe.
@c LocalWords: int HD
diff --git a/src/cipher.h b/src/cipher.h
index 62ca745a..48baab42 100644
--- a/src/cipher.h
+++ b/src/cipher.h
@@ -1,137 +1,139 @@
/* cipher.h
* Copyright (C) 1998, 2002, 2003 Free Software Foundation, Inc.
*
* This file is part of Libgcrypt.
*
* Libgcrypt is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser general Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* Libgcrypt is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifndef G10_CIPHER_H
#define G10_CIPHER_H
#include <gcrypt.h>
#define DBG_CIPHER _gcry_get_debug_flag( 1 )
#include "../random/random.h"
#define PUBKEY_FLAG_NO_BLINDING (1 << 0)
#define CIPHER_INFO_NO_WEAK_KEY 1
#include "cipher-proto.h"
/*-- rmd160.c --*/
void _gcry_rmd160_hash_buffer (void *outbuf,
const void *buffer, size_t length);
/*-- sha1.c --*/
void _gcry_sha1_hash_buffer (void *outbuf,
const void *buffer, size_t length);
/*-- rijndael.c --*/
void _gcry_aes_cfb_enc (void *context, unsigned char *iv,
void *outbuf, const void *inbuf,
unsigned int nblocks);
void _gcry_aes_cfb_dec (void *context, unsigned char *iv,
void *outbuf_arg, const void *inbuf_arg,
unsigned int nblocks);
void _gcry_aes_cbc_enc (void *context, unsigned char *iv,
void *outbuf_arg, const void *inbuf_arg,
unsigned int nblocks, int cbc_mac);
void _gcry_aes_cbc_dec (void *context, unsigned char *iv,
void *outbuf_arg, const void *inbuf_arg,
unsigned int nblocks);
/*-- dsa.c --*/
void _gcry_register_pk_dsa_progress (gcry_handler_progress_t cbc, void *cb_data);
/*-- elgamal.c --*/
void _gcry_register_pk_elg_progress (gcry_handler_progress_t cb,
void *cb_data);
/*-- ecc.c --*/
void _gcry_register_pk_ecc_progress (gcry_handler_progress_t cbc,
void *cb_data);
/*-- primegen.c --*/
void _gcry_register_primegen_progress (gcry_handler_progress_t cb,
void *cb_data);
/*-- pubkey.c --*/
const char * _gcry_pk_aliased_algo_name (int algorithm);
/* Declarations for the cipher specifications. */
extern gcry_cipher_spec_t _gcry_cipher_spec_blowfish;
extern gcry_cipher_spec_t _gcry_cipher_spec_des;
extern gcry_cipher_spec_t _gcry_cipher_spec_tripledes;
extern gcry_cipher_spec_t _gcry_cipher_spec_arcfour;
extern gcry_cipher_spec_t _gcry_cipher_spec_cast5;
extern gcry_cipher_spec_t _gcry_cipher_spec_aes;
extern gcry_cipher_spec_t _gcry_cipher_spec_aes192;
extern gcry_cipher_spec_t _gcry_cipher_spec_aes256;
extern gcry_cipher_spec_t _gcry_cipher_spec_twofish;
extern gcry_cipher_spec_t _gcry_cipher_spec_twofish128;
extern gcry_cipher_spec_t _gcry_cipher_spec_serpent128;
extern gcry_cipher_spec_t _gcry_cipher_spec_serpent192;
extern gcry_cipher_spec_t _gcry_cipher_spec_serpent256;
extern gcry_cipher_spec_t _gcry_cipher_spec_rfc2268_40;
extern gcry_cipher_spec_t _gcry_cipher_spec_seed;
extern gcry_cipher_spec_t _gcry_cipher_spec_camellia128;
extern gcry_cipher_spec_t _gcry_cipher_spec_camellia192;
extern gcry_cipher_spec_t _gcry_cipher_spec_camellia256;
extern cipher_extra_spec_t _gcry_cipher_extraspec_tripledes;
extern cipher_extra_spec_t _gcry_cipher_extraspec_aes;
extern cipher_extra_spec_t _gcry_cipher_extraspec_aes192;
extern cipher_extra_spec_t _gcry_cipher_extraspec_aes256;
/* Declarations for the digest specifications. */
extern gcry_md_spec_t _gcry_digest_spec_crc32;
extern gcry_md_spec_t _gcry_digest_spec_crc32_rfc1510;
extern gcry_md_spec_t _gcry_digest_spec_crc24_rfc2440;
extern gcry_md_spec_t _gcry_digest_spec_md4;
extern gcry_md_spec_t _gcry_digest_spec_md5;
extern gcry_md_spec_t _gcry_digest_spec_rmd160;
extern gcry_md_spec_t _gcry_digest_spec_sha1;
extern gcry_md_spec_t _gcry_digest_spec_sha224;
extern gcry_md_spec_t _gcry_digest_spec_sha256;
extern gcry_md_spec_t _gcry_digest_spec_sha512;
extern gcry_md_spec_t _gcry_digest_spec_sha384;
extern gcry_md_spec_t _gcry_digest_spec_tiger;
+extern gcry_md_spec_t _gcry_digest_spec_tiger1;
+extern gcry_md_spec_t _gcry_digest_spec_tiger2;
extern gcry_md_spec_t _gcry_digest_spec_whirlpool;
extern md_extra_spec_t _gcry_digest_extraspec_sha1;
extern md_extra_spec_t _gcry_digest_extraspec_sha224;
extern md_extra_spec_t _gcry_digest_extraspec_sha256;
extern md_extra_spec_t _gcry_digest_extraspec_sha384;
extern md_extra_spec_t _gcry_digest_extraspec_sha512;
/* Declarations for the pubkey cipher specifications. */
extern gcry_pk_spec_t _gcry_pubkey_spec_rsa;
extern gcry_pk_spec_t _gcry_pubkey_spec_elg;
extern gcry_pk_spec_t _gcry_pubkey_spec_dsa;
extern gcry_pk_spec_t _gcry_pubkey_spec_ecdsa;
extern pk_extra_spec_t _gcry_pubkey_extraspec_rsa;
extern pk_extra_spec_t _gcry_pubkey_extraspec_dsa;
extern pk_extra_spec_t _gcry_pubkey_extraspec_elg;
extern pk_extra_spec_t _gcry_pubkey_extraspec_ecdsa;
#endif /*G10_CIPHER_H*/
diff --git a/src/gcrypt.h.in b/src/gcrypt.h.in
index e5bd704c..ff08d69b 100644
--- a/src/gcrypt.h.in
+++ b/src/gcrypt.h.in
@@ -1,1838 +1,1840 @@
/* gcrypt.h - GNU Cryptographic Library Interface -*- c -*-
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006
2007, 2008, 2009 Free Software Foundation, Inc.
This file is part of Libgcrypt.
Libgcrypt is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of
the License, or (at your option) any later version.
Libgcrypt is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this program; if not, see <http://www.gnu.org/licenses/>.
File: @configure_input@ */
#ifndef _GCRYPT_H
#define _GCRYPT_H
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <gpg-error.h>
#include <sys/types.h>
#if defined _WIN32 || defined __WIN32__
# include <winsock2.h>
# include <ws2tcpip.h>
#else
# include <sys/socket.h>
#endif /*!_WIN32*/
@FALLBACK_SOCKLEN_T@
#include <sys/time.h>
/* This is required for error code compatibility. */
#define _GCRY_ERR_SOURCE_DEFAULT GPG_ERR_SOURCE_GCRYPT
#ifdef __cplusplus
extern "C" {
#if 0 /* (Keep Emacsens' auto-indent happy.) */
}
#endif
#endif
/* The version of this header should match the one of the library. It
should not be used by a program because gcry_check_version() should
return the same version. The purpose of this macro is to let
autoconf (using the AM_PATH_GCRYPT macro) check that this header
matches the installed library. */
#define GCRYPT_VERSION "@VERSION@"
/* Internal: We can't use the convenience macros for the multi
precision integer functions when building this library. */
#ifdef _GCRYPT_IN_LIBGCRYPT
#ifndef GCRYPT_NO_MPI_MACROS
#define GCRYPT_NO_MPI_MACROS 1
#endif
#endif
/* We want to use gcc attributes when possible. Warning: Don't use
these macros in your programs: As indicated by the leading
underscore they are subject to change without notice. */
#ifdef __GNUC__
#define _GCRY_GCC_VERSION (__GNUC__ * 10000 \
+ __GNUC_MINOR__ * 100 \
+ __GNUC_PATCHLEVEL__)
#if _GCRY_GCC_VERSION >= 30100
#define _GCRY_GCC_ATTR_DEPRECATED __attribute__ ((__deprecated__))
#endif
#if _GCRY_GCC_VERSION >= 29600
#define _GCRY_GCC_ATTR_PURE __attribute__ ((__pure__))
#endif
#if _GCRY_GCC_VERSION >= 30200
#define _GCRY_GCC_ATTR_MALLOC __attribute__ ((__malloc__))
#endif
#endif /*__GNUC__*/
#ifndef _GCRY_GCC_ATTR_DEPRECATED
#define _GCRY_GCC_ATTR_DEPRECATED
#endif
#ifndef _GCRY_GCC_ATTR_PURE
#define _GCRY_GCC_ATTR_PURE
#endif
#ifndef _GCRY_GCC_ATTR_MALLOC
#define _GCRY_GCC_ATTR_MALLOC
#endif
/* Some members in a public type should only be used internally.
There is no "internal" attribute, so we abuse the deprecated
attribute to discourage external use. */
#ifdef _GCRYPT_IN_LIBGCRYPT
#define _GCRY_ATTR_INTERNAL
#else
#define _GCRY_ATTR_INTERNAL _GCRY_GCC_ATTR_DEPRECATED
#endif
/* Wrappers for the libgpg-error library. */
typedef gpg_error_t gcry_error_t;
typedef gpg_err_code_t gcry_err_code_t;
typedef gpg_err_source_t gcry_err_source_t;
static GPG_ERR_INLINE gcry_error_t
gcry_err_make (gcry_err_source_t source, gcry_err_code_t code)
{
return gpg_err_make (source, code);
}
/* The user can define GPG_ERR_SOURCE_DEFAULT before including this
file to specify a default source for gpg_error. */
#ifndef GCRY_ERR_SOURCE_DEFAULT
#define GCRY_ERR_SOURCE_DEFAULT GPG_ERR_SOURCE_USER_1
#endif
static GPG_ERR_INLINE gcry_error_t
gcry_error (gcry_err_code_t code)
{
return gcry_err_make (GCRY_ERR_SOURCE_DEFAULT, code);
}
static GPG_ERR_INLINE gcry_err_code_t
gcry_err_code (gcry_error_t err)
{
return gpg_err_code (err);
}
static GPG_ERR_INLINE gcry_err_source_t
gcry_err_source (gcry_error_t err)
{
return gpg_err_source (err);
}
/* Return a pointer to a string containing a description of the error
code in the error value ERR. */
const char *gcry_strerror (gcry_error_t err);
/* Return a pointer to a string containing a description of the error
source in the error value ERR. */
const char *gcry_strsource (gcry_error_t err);
/* Retrieve the error code for the system error ERR. This returns
GPG_ERR_UNKNOWN_ERRNO if the system error is not mapped (report
this). */
gcry_err_code_t gcry_err_code_from_errno (int err);
/* Retrieve the system error for the error code CODE. This returns 0
if CODE is not a system error code. */
int gcry_err_code_to_errno (gcry_err_code_t code);
/* Return an error value with the error source SOURCE and the system
error ERR. */
gcry_error_t gcry_err_make_from_errno (gcry_err_source_t source, int err);
/* Return an error value with the system error ERR. */
gcry_err_code_t gcry_error_from_errno (int err);
/* This enum is deprecated; it is only declared for the sake of
complete API compatibility. */
enum gcry_thread_option
{
_GCRY_THREAD_OPTION_DUMMY
} _GCRY_GCC_ATTR_DEPRECATED;
/* Constants defining the thread model to use. Used with the OPTION
field of the struct gcry_thread_cbs. */
#define GCRY_THREAD_OPTION_DEFAULT 0
#define GCRY_THREAD_OPTION_USER 1
#define GCRY_THREAD_OPTION_PTH 2
#define GCRY_THREAD_OPTION_PTHREAD 3
/* The version number encoded in the OPTION field of the struct
gcry_thread_cbs. */
#define GCRY_THREAD_OPTION_VERSION 0
/* Wrapper for struct ath_ops. */
struct gcry_thread_cbs
{
/* The OPTION field encodes the thread model and the version number
of this structure.
Bits 7 - 0 are used for the thread model
Bits 15 - 8 are used for the version number.
*/
unsigned int option;
int (*init) (void);
int (*mutex_init) (void **priv);
int (*mutex_destroy) (void **priv);
int (*mutex_lock) (void **priv);
int (*mutex_unlock) (void **priv);
ssize_t (*read) (int fd, void *buf, size_t nbytes);
ssize_t (*write) (int fd, const void *buf, size_t nbytes);
#ifdef _WIN32
ssize_t (*select) (int nfd, void *rset, void *wset, void *eset,
struct timeval *timeout);
ssize_t (*waitpid) (pid_t pid, int *status, int options);
int (*accept) (int s, void *addr, int *length_ptr);
int (*connect) (int s, void *addr, gcry_socklen_t length);
int (*sendmsg) (int s, const void *msg, int flags);
int (*recvmsg) (int s, void *msg, int flags);
#else
ssize_t (*select) (int nfd, fd_set *rset, fd_set *wset, fd_set *eset,
struct timeval *timeout);
ssize_t (*waitpid) (pid_t pid, int *status, int options);
int (*accept) (int s, struct sockaddr *addr, gcry_socklen_t *length_ptr);
int (*connect) (int s, struct sockaddr *addr, gcry_socklen_t length);
int (*sendmsg) (int s, const struct msghdr *msg, int flags);
int (*recvmsg) (int s, struct msghdr *msg, int flags);
#endif
};
#ifdef _WIN32
# define _GCRY_THREAD_OPTION_PTH_IMPL_NET \
static ssize_t gcry_pth_select (int nfd, void *rset, void *wset, \
void *eset, struct timeval *timeout) \
{ return pth_select (nfd, rset, wset, eset, timeout); } \
static ssize_t gcry_pth_waitpid (pid_t pid, int *status, int options) \
{ return pth_waitpid (pid, status, options); } \
static int gcry_pth_accept (int s, void *addr, \
gcry_socklen_t *length_ptr) \
{ return pth_accept (s, addr, length_ptr); } \
static int gcry_pth_connect (int s, void *addr, \
gcry_socklen_t length) \
{ return pth_connect (s, addr, length); }
#else /*!_WIN32*/
# define _GCRY_THREAD_OPTION_PTH_IMPL_NET \
static ssize_t gcry_pth_select (int nfd, fd_set *rset, fd_set *wset, \
fd_set *eset, struct timeval *timeout) \
{ return pth_select (nfd, rset, wset, eset, timeout); } \
static ssize_t gcry_pth_waitpid (pid_t pid, int *status, int options) \
{ return pth_waitpid (pid, status, options); } \
static int gcry_pth_accept (int s, struct sockaddr *addr, \
gcry_socklen_t *length_ptr) \
{ return pth_accept (s, addr, length_ptr); } \
static int gcry_pth_connect (int s, struct sockaddr *addr, \
gcry_socklen_t length) \
{ return pth_connect (s, addr, length); }
#endif /*!_WIN32*/
#define GCRY_THREAD_OPTION_PTH_IMPL \
static int gcry_pth_init (void) \
{ return (pth_init () == FALSE) ? errno : 0; } \
static int gcry_pth_mutex_init (void **priv) \
{ \
int err = 0; \
pth_mutex_t *lock = malloc (sizeof (pth_mutex_t)); \
\
if (!lock) \
err = ENOMEM; \
if (!err) \
{ \
err = pth_mutex_init (lock); \
if (err == FALSE) \
err = errno; \
else \
err = 0; \
if (err) \
free (lock); \
else \
*priv = lock; \
} \
return err; \
} \
static int gcry_pth_mutex_destroy (void **lock) \
{ /* GNU Pth has no destructor function. */ free (*lock); return 0; } \
static int gcry_pth_mutex_lock (void **lock) \
{ return ((pth_mutex_acquire (*lock, 0, NULL)) == FALSE) \
? errno : 0; } \
static int gcry_pth_mutex_unlock (void **lock) \
{ return ((pth_mutex_release (*lock)) == FALSE) \
? errno : 0; } \
static ssize_t gcry_pth_read (int fd, void *buf, size_t nbytes) \
{ return pth_read (fd, buf, nbytes); } \
static ssize_t gcry_pth_write (int fd, const void *buf, size_t nbytes) \
{ return pth_write (fd, buf, nbytes); } \
_GCRY_THREAD_OPTION_PTH_IMPL_NET \
\
/* Note: GNU Pth is missing pth_sendmsg and pth_recvmsg. */ \
static struct gcry_thread_cbs gcry_threads_pth = { \
(GCRY_THREAD_OPTION_PTH | (GCRY_THREAD_OPTION_VERSION << 8)), \
gcry_pth_init, gcry_pth_mutex_init, gcry_pth_mutex_destroy, \
gcry_pth_mutex_lock, gcry_pth_mutex_unlock, gcry_pth_read, gcry_pth_write, \
gcry_pth_select, gcry_pth_waitpid, gcry_pth_accept, gcry_pth_connect, \
NULL, NULL }
#define GCRY_THREAD_OPTION_PTHREAD_IMPL \
static int gcry_pthread_mutex_init (void **priv) \
{ \
int err = 0; \
pthread_mutex_t *lock = (pthread_mutex_t*)malloc (sizeof (pthread_mutex_t));\
\
if (!lock) \
err = ENOMEM; \
if (!err) \
{ \
err = pthread_mutex_init (lock, NULL); \
if (err) \
free (lock); \
else \
*priv = lock; \
} \
return err; \
} \
static int gcry_pthread_mutex_destroy (void **lock) \
{ int err = pthread_mutex_destroy ((pthread_mutex_t*)*lock); \
free (*lock); return err; } \
static int gcry_pthread_mutex_lock (void **lock) \
{ return pthread_mutex_lock ((pthread_mutex_t*)*lock); } \
static int gcry_pthread_mutex_unlock (void **lock) \
{ return pthread_mutex_unlock ((pthread_mutex_t*)*lock); } \
\
static struct gcry_thread_cbs gcry_threads_pthread = { \
(GCRY_THREAD_OPTION_PTHREAD | (GCRY_THREAD_OPTION_VERSION << 8)), \
NULL, gcry_pthread_mutex_init, gcry_pthread_mutex_destroy, \
gcry_pthread_mutex_lock, gcry_pthread_mutex_unlock, \
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL }
/* The data object used to hold a multi precision integer. */
struct gcry_mpi;
typedef struct gcry_mpi *gcry_mpi_t;
#ifndef GCRYPT_NO_DEPRECATED
typedef struct gcry_mpi *GCRY_MPI _GCRY_GCC_ATTR_DEPRECATED;
typedef struct gcry_mpi *GcryMPI _GCRY_GCC_ATTR_DEPRECATED;
#endif
/* Check that the library fulfills the version requirement. */
const char *gcry_check_version (const char *req_version);
/* Codes for function dispatchers. */
/* Codes used with the gcry_control function. */
enum gcry_ctl_cmds
{
GCRYCTL_SET_KEY = 1,
GCRYCTL_SET_IV = 2,
GCRYCTL_CFB_SYNC = 3,
GCRYCTL_RESET = 4, /* e.g. for MDs */
GCRYCTL_FINALIZE = 5,
GCRYCTL_GET_KEYLEN = 6,
GCRYCTL_GET_BLKLEN = 7,
GCRYCTL_TEST_ALGO = 8,
GCRYCTL_IS_SECURE = 9,
GCRYCTL_GET_ASNOID = 10,
GCRYCTL_ENABLE_ALGO = 11,
GCRYCTL_DISABLE_ALGO = 12,
GCRYCTL_DUMP_RANDOM_STATS = 13,
GCRYCTL_DUMP_SECMEM_STATS = 14,
GCRYCTL_GET_ALGO_NPKEY = 15,
GCRYCTL_GET_ALGO_NSKEY = 16,
GCRYCTL_GET_ALGO_NSIGN = 17,
GCRYCTL_GET_ALGO_NENCR = 18,
GCRYCTL_SET_VERBOSITY = 19,
GCRYCTL_SET_DEBUG_FLAGS = 20,
GCRYCTL_CLEAR_DEBUG_FLAGS = 21,
GCRYCTL_USE_SECURE_RNDPOOL= 22,
GCRYCTL_DUMP_MEMORY_STATS = 23,
GCRYCTL_INIT_SECMEM = 24,
GCRYCTL_TERM_SECMEM = 25,
GCRYCTL_DISABLE_SECMEM_WARN = 27,
GCRYCTL_SUSPEND_SECMEM_WARN = 28,
GCRYCTL_RESUME_SECMEM_WARN = 29,
GCRYCTL_DROP_PRIVS = 30,
GCRYCTL_ENABLE_M_GUARD = 31,
GCRYCTL_START_DUMP = 32,
GCRYCTL_STOP_DUMP = 33,
GCRYCTL_GET_ALGO_USAGE = 34,
GCRYCTL_IS_ALGO_ENABLED = 35,
GCRYCTL_DISABLE_INTERNAL_LOCKING = 36,
GCRYCTL_DISABLE_SECMEM = 37,
GCRYCTL_INITIALIZATION_FINISHED = 38,
GCRYCTL_INITIALIZATION_FINISHED_P = 39,
GCRYCTL_ANY_INITIALIZATION_P = 40,
GCRYCTL_SET_CBC_CTS = 41,
GCRYCTL_SET_CBC_MAC = 42,
GCRYCTL_SET_CTR = 43,
GCRYCTL_ENABLE_QUICK_RANDOM = 44,
GCRYCTL_SET_RANDOM_SEED_FILE = 45,
GCRYCTL_UPDATE_RANDOM_SEED_FILE = 46,
GCRYCTL_SET_THREAD_CBS = 47,
GCRYCTL_FAST_POLL = 48,
GCRYCTL_SET_RANDOM_DAEMON_SOCKET = 49,
GCRYCTL_USE_RANDOM_DAEMON = 50,
GCRYCTL_FAKED_RANDOM_P = 51,
GCRYCTL_SET_RNDEGD_SOCKET = 52,
GCRYCTL_PRINT_CONFIG = 53,
GCRYCTL_OPERATIONAL_P = 54,
GCRYCTL_FIPS_MODE_P = 55,
GCRYCTL_FORCE_FIPS_MODE = 56,
GCRYCTL_SELFTEST = 57
/* Note: 58 .. 62 are used internally. */
};
/* Perform various operations defined by CMD. */
gcry_error_t gcry_control (enum gcry_ctl_cmds CMD, ...);
/* S-expression management. */
/* The object to represent an S-expression as used with the public key
functions. */
struct gcry_sexp;
typedef struct gcry_sexp *gcry_sexp_t;
#ifndef GCRYPT_NO_DEPRECATED
typedef struct gcry_sexp *GCRY_SEXP _GCRY_GCC_ATTR_DEPRECATED;
typedef struct gcry_sexp *GcrySexp _GCRY_GCC_ATTR_DEPRECATED;
#endif
/* The possible values for the S-expression format. */
enum gcry_sexp_format
{
GCRYSEXP_FMT_DEFAULT = 0,
GCRYSEXP_FMT_CANON = 1,
GCRYSEXP_FMT_BASE64 = 2,
GCRYSEXP_FMT_ADVANCED = 3
};
/* Create an new S-expression object from BUFFER of size LENGTH and
return it in RETSEXP. With AUTODETECT set to 0 the data in BUFFER
is expected to be in canonized format. */
gcry_error_t gcry_sexp_new (gcry_sexp_t *retsexp,
const void *buffer, size_t length,
int autodetect);
/* Same as gcry_sexp_new but allows to pass a FREEFNC which has the
effect to transfer ownership of BUFFER to the created object. */
gcry_error_t gcry_sexp_create (gcry_sexp_t *retsexp,
void *buffer, size_t length,
int autodetect, void (*freefnc) (void *));
/* Scan BUFFER and return a new S-expression object in RETSEXP. This
function expects a printf like string in BUFFER. */
gcry_error_t gcry_sexp_sscan (gcry_sexp_t *retsexp, size_t *erroff,
const char *buffer, size_t length);
/* Same as gcry_sexp_sscan but expects a string in FORMAT and can thus
only be used for certain encodings. */
gcry_error_t gcry_sexp_build (gcry_sexp_t *retsexp, size_t *erroff,
const char *format, ...);
/* Like gcry_sexp_build, but uses an array instead of variable
function arguments. */
gcry_error_t gcry_sexp_build_array (gcry_sexp_t *retsexp, size_t *erroff,
const char *format, void **arg_list);
/* Release the S-expression object SEXP */
void gcry_sexp_release (gcry_sexp_t sexp);
/* Calculate the length of an canonized S-expresion in BUFFER and
check for a valid encoding. */
size_t gcry_sexp_canon_len (const unsigned char *buffer, size_t length,
size_t *erroff, gcry_error_t *errcode);
/* Copies the S-expression object SEXP into BUFFER using the format
specified in MODE. */
size_t gcry_sexp_sprint (gcry_sexp_t sexp, int mode, void *buffer,
size_t maxlength);
/* Dumps the S-expression object A in a format suitable for debugging
to Libgcrypt's logging stream. */
void gcry_sexp_dump (const gcry_sexp_t a);
gcry_sexp_t gcry_sexp_cons (const gcry_sexp_t a, const gcry_sexp_t b);
gcry_sexp_t gcry_sexp_alist (const gcry_sexp_t *array);
gcry_sexp_t gcry_sexp_vlist (const gcry_sexp_t a, ...);
gcry_sexp_t gcry_sexp_append (const gcry_sexp_t a, const gcry_sexp_t n);
gcry_sexp_t gcry_sexp_prepend (const gcry_sexp_t a, const gcry_sexp_t n);
/* Scan the S-expression for a sublist with a type (the car of the
list) matching the string TOKEN. If TOKLEN is not 0, the token is
assumed to be raw memory of this length. The function returns a
newly allocated S-expression consisting of the found sublist or
`NULL' when not found. */
gcry_sexp_t gcry_sexp_find_token (gcry_sexp_t list,
const char *tok, size_t toklen);
/* Return the length of the LIST. For a valid S-expression this
should be at least 1. */
int gcry_sexp_length (const gcry_sexp_t list);
/* Create and return a new S-expression from the element with index
NUMBER in LIST. Note that the first element has the index 0. If
there is no such element, `NULL' is returned. */
gcry_sexp_t gcry_sexp_nth (const gcry_sexp_t list, int number);
/* Create and return a new S-expression from the first element in
LIST; this called the "type" and should always exist and be a
string. `NULL' is returned in case of a problem. */
gcry_sexp_t gcry_sexp_car (const gcry_sexp_t list);
/* Create and return a new list form all elements except for the first
one. Note, that this function may return an invalid S-expression
because it is not guaranteed, that the type exists and is a string.
However, for parsing a complex S-expression it might be useful for
intermediate lists. Returns `NULL' on error. */
gcry_sexp_t gcry_sexp_cdr (const gcry_sexp_t list);
gcry_sexp_t gcry_sexp_cadr (const gcry_sexp_t list);
/* This function is used to get data from a LIST. A pointer to the
actual data with index NUMBER is returned and the length of this
data will be stored to DATALEN. If there is no data at the given
index or the index represents another list, `NULL' is returned.
*Note:* The returned pointer is valid as long as LIST is not
modified or released. */
const char *gcry_sexp_nth_data (const gcry_sexp_t list, int number,
size_t *datalen);
/* This function is used to get and convert data from a LIST. The
data is assumed to be a Nul terminated string. The caller must
release the returned value using `gcry_free'. If there is no data
at the given index, the index represents a list or the value can't
be converted to a string, `NULL' is returned. */
char *gcry_sexp_nth_string (gcry_sexp_t list, int number);
/* This function is used to get and convert data from a LIST. This
data is assumed to be an MPI stored in the format described by
MPIFMT and returned as a standard Libgcrypt MPI. The caller must
release this returned value using `gcry_mpi_release'. If there is
no data at the given index, the index represents a list or the
value can't be converted to an MPI, `NULL' is returned. */
gcry_mpi_t gcry_sexp_nth_mpi (gcry_sexp_t list, int number, int mpifmt);
/*******************************************
* *
* Multi Precision Integer Functions *
* *
*******************************************/
/* Different formats of external big integer representation. */
enum gcry_mpi_format
{
GCRYMPI_FMT_NONE= 0,
GCRYMPI_FMT_STD = 1, /* Twos complement stored without length. */
GCRYMPI_FMT_PGP = 2, /* As used by OpenPGP (unsigned only). */
GCRYMPI_FMT_SSH = 3, /* As used by SSH (like STD but with length). */
GCRYMPI_FMT_HEX = 4, /* Hex format. */
GCRYMPI_FMT_USG = 5 /* Like STD but unsigned. */
};
/* Flags used for creating big integers. */
enum gcry_mpi_flag
{
GCRYMPI_FLAG_SECURE = 1, /* Allocate the number in "secure" memory. */
GCRYMPI_FLAG_OPAQUE = 2 /* The number is not a real one but just
a way to store some bytes. This is
useful for encrypted big integers. */
};
/* Allocate a new big integer object, initialize it with 0 and
initially allocate memory for a number of at least NBITS. */
gcry_mpi_t gcry_mpi_new (unsigned int nbits);
/* Same as gcry_mpi_new() but allocate in "secure" memory. */
gcry_mpi_t gcry_mpi_snew (unsigned int nbits);
/* Release the number A and free all associated resources. */
void gcry_mpi_release (gcry_mpi_t a);
/* Create a new number with the same value as A. */
gcry_mpi_t gcry_mpi_copy (const gcry_mpi_t a);
/* Store the big integer value U in W. */
gcry_mpi_t gcry_mpi_set (gcry_mpi_t w, const gcry_mpi_t u);
/* Store the unsigned integer value U in W. */
gcry_mpi_t gcry_mpi_set_ui (gcry_mpi_t w, unsigned long u);
/* Swap the values of A and B. */
void gcry_mpi_swap (gcry_mpi_t a, gcry_mpi_t b);
/* Compare the big integer number U and V returning 0 for equality, a
positive value for U > V and a negative for U < V. */
int gcry_mpi_cmp (const gcry_mpi_t u, const gcry_mpi_t v);
/* Compare the big integer number U with the unsigned integer V
returning 0 for equality, a positive value for U > V and a negative
for U < V. */
int gcry_mpi_cmp_ui (const gcry_mpi_t u, unsigned long v);
/* Convert the external representation of an integer stored in BUFFER
with a length of BUFLEN into a newly create MPI returned in
RET_MPI. If NSCANNED is not NULL, it will receive the number of
bytes actually scanned after a successful operation. */
gcry_error_t gcry_mpi_scan (gcry_mpi_t *ret_mpi, enum gcry_mpi_format format,
const void *buffer, size_t buflen,
size_t *nscanned);
/* Convert the big integer A into the external representation
described by FORMAT and store it in the provided BUFFER which has
been allocated by the user with a size of BUFLEN bytes. NWRITTEN
receives the actual length of the external representation unless it
has been passed as NULL. */
gcry_error_t gcry_mpi_print (enum gcry_mpi_format format,
unsigned char *buffer, size_t buflen,
size_t *nwritten,
const gcry_mpi_t a);
/* Convert the big integer A int the external representation described
by FORMAT and store it in a newly allocated buffer which address
will be put into BUFFER. NWRITTEN receives the actual lengths of the
external representation. */
gcry_error_t gcry_mpi_aprint (enum gcry_mpi_format format,
unsigned char **buffer, size_t *nwritten,
const gcry_mpi_t a);
/* Dump the value of A in a format suitable for debugging to
Libgcrypt's logging stream. Note that one leading space but no
trailing space or linefeed will be printed. It is okay to pass
NULL for A. */
void gcry_mpi_dump (const gcry_mpi_t a);
/* W = U + V. */
void gcry_mpi_add (gcry_mpi_t w, gcry_mpi_t u, gcry_mpi_t v);
/* W = U + V. V is an unsigned integer. */
void gcry_mpi_add_ui (gcry_mpi_t w, gcry_mpi_t u, unsigned long v);
/* W = U + V mod M. */
void gcry_mpi_addm (gcry_mpi_t w, gcry_mpi_t u, gcry_mpi_t v, gcry_mpi_t m);
/* W = U - V. */
void gcry_mpi_sub (gcry_mpi_t w, gcry_mpi_t u, gcry_mpi_t v);
/* W = U - V. V is an unsigned integer. */
void gcry_mpi_sub_ui (gcry_mpi_t w, gcry_mpi_t u, unsigned long v );
/* W = U - V mod M */
void gcry_mpi_subm (gcry_mpi_t w, gcry_mpi_t u, gcry_mpi_t v, gcry_mpi_t m);
/* W = U * V. */
void gcry_mpi_mul (gcry_mpi_t w, gcry_mpi_t u, gcry_mpi_t v);
/* W = U * V. V is an unsigned integer. */
void gcry_mpi_mul_ui (gcry_mpi_t w, gcry_mpi_t u, unsigned long v );
/* W = U * V mod M. */
void gcry_mpi_mulm (gcry_mpi_t w, gcry_mpi_t u, gcry_mpi_t v, gcry_mpi_t m);
/* W = U * (2 ^ CNT). */
void gcry_mpi_mul_2exp (gcry_mpi_t w, gcry_mpi_t u, unsigned long cnt);
/* Q = DIVIDEND / DIVISOR, R = DIVIDEND % DIVISOR,
Q or R may be passed as NULL. ROUND should be negative or 0. */
void gcry_mpi_div (gcry_mpi_t q, gcry_mpi_t r,
gcry_mpi_t dividend, gcry_mpi_t divisor, int round);
/* R = DIVIDEND % DIVISOR */
void gcry_mpi_mod (gcry_mpi_t r, gcry_mpi_t dividend, gcry_mpi_t divisor);
/* W = B ^ E mod M. */
void gcry_mpi_powm (gcry_mpi_t w,
const gcry_mpi_t b, const gcry_mpi_t e,
const gcry_mpi_t m);
/* Set G to the greatest common divisor of A and B.
Return true if the G is 1. */
int gcry_mpi_gcd (gcry_mpi_t g, gcry_mpi_t a, gcry_mpi_t b);
/* Set X to the multiplicative inverse of A mod M.
Return true if the value exists. */
int gcry_mpi_invm (gcry_mpi_t x, gcry_mpi_t a, gcry_mpi_t m);
/* Return the number of bits required to represent A. */
unsigned int gcry_mpi_get_nbits (gcry_mpi_t a);
/* Return true when bit number N (counting from 0) is set in A. */
int gcry_mpi_test_bit (gcry_mpi_t a, unsigned int n);
/* Set bit number N in A. */
void gcry_mpi_set_bit (gcry_mpi_t a, unsigned int n);
/* Clear bit number N in A. */
void gcry_mpi_clear_bit (gcry_mpi_t a, unsigned int n);
/* Set bit number N in A and clear all bits greater than N. */
void gcry_mpi_set_highbit (gcry_mpi_t a, unsigned int n);
/* Clear bit number N in A and all bits greater than N. */
void gcry_mpi_clear_highbit (gcry_mpi_t a, unsigned int n);
/* Shift the value of A by N bits to the right and store the result in X. */
void gcry_mpi_rshift (gcry_mpi_t x, gcry_mpi_t a, unsigned int n);
/* Shift the value of A by N bits to the left and store the result in X. */
void gcry_mpi_lshift (gcry_mpi_t x, gcry_mpi_t a, unsigned int n);
/* Store NBITS of the value P points to in A and mark A as an opaque
value. WARNING: Never use an opaque MPI for anything thing else then
gcry_mpi_release, gcry_mpi_get_opaque. */
gcry_mpi_t gcry_mpi_set_opaque (gcry_mpi_t a, void *p, unsigned int nbits);
/* Return a pointer to an opaque value stored in A and return its size
in NBITS. Note that the returned pointer is still owned by A and
that the function should never be used for an non-opaque MPI. */
void *gcry_mpi_get_opaque (gcry_mpi_t a, unsigned int *nbits);
/* Set the FLAG for the big integer A. Currently only the flag
GCRYMPI_FLAG_SECURE is allowed to convert A into an big intger
stored in "secure" memory. */
void gcry_mpi_set_flag (gcry_mpi_t a, enum gcry_mpi_flag flag);
/* Clear FLAG for the big integer A. Note that this function is
currently useless as no flags are allowed. */
void gcry_mpi_clear_flag (gcry_mpi_t a, enum gcry_mpi_flag flag);
/* Return true when the FLAG is set for A. */
int gcry_mpi_get_flag (gcry_mpi_t a, enum gcry_mpi_flag flag);
/* Unless the GCRYPT_NO_MPI_MACROS is used, provide a couple of
convenience macros for the big integer functions. */
#ifndef GCRYPT_NO_MPI_MACROS
#define mpi_new(n) gcry_mpi_new( (n) )
#define mpi_secure_new( n ) gcry_mpi_snew( (n) )
#define mpi_release(a) \
do \
{ \
gcry_mpi_release ((a)); \
(a) = NULL; \
} \
while (0)
#define mpi_copy( a ) gcry_mpi_copy( (a) )
#define mpi_set( w, u) gcry_mpi_set( (w), (u) )
#define mpi_set_ui( w, u) gcry_mpi_set_ui( (w), (u) )
#define mpi_cmp( u, v ) gcry_mpi_cmp( (u), (v) )
#define mpi_cmp_ui( u, v ) gcry_mpi_cmp_ui( (u), (v) )
#define mpi_add_ui(w,u,v) gcry_mpi_add_ui((w),(u),(v))
#define mpi_add(w,u,v) gcry_mpi_add ((w),(u),(v))
#define mpi_addm(w,u,v,m) gcry_mpi_addm ((w),(u),(v),(m))
#define mpi_sub_ui(w,u,v) gcry_mpi_sub_ui ((w),(u),(v))
#define mpi_sub(w,u,v) gcry_mpi_sub ((w),(u),(v))
#define mpi_subm(w,u,v,m) gcry_mpi_subm ((w),(u),(v),(m))
#define mpi_mul_ui(w,u,v) gcry_mpi_mul_ui ((w),(u),(v))
#define mpi_mul_2exp(w,u,v) gcry_mpi_mul_2exp ((w),(u),(v))
#define mpi_mul(w,u,v) gcry_mpi_mul ((w),(u),(v))
#define mpi_mulm(w,u,v,m) gcry_mpi_mulm ((w),(u),(v),(m))
#define mpi_powm(w,b,e,m) gcry_mpi_powm ( (w), (b), (e), (m) )
#define mpi_tdiv(q,r,a,m) gcry_mpi_div ( (q), (r), (a), (m), 0)
#define mpi_fdiv(q,r,a,m) gcry_mpi_div ( (q), (r), (a), (m), -1)
#define mpi_mod(r,a,m) gcry_mpi_mod ((r), (a), (m))
#define mpi_gcd(g,a,b) gcry_mpi_gcd ( (g), (a), (b) )
#define mpi_invm(g,a,b) gcry_mpi_invm ( (g), (a), (b) )
#define mpi_get_nbits(a) gcry_mpi_get_nbits ((a))
#define mpi_test_bit(a,b) gcry_mpi_test_bit ((a),(b))
#define mpi_set_bit(a,b) gcry_mpi_set_bit ((a),(b))
#define mpi_set_highbit(a,b) gcry_mpi_set_highbit ((a),(b))
#define mpi_clear_bit(a,b) gcry_mpi_clear_bit ((a),(b))
#define mpi_clear_highbit(a,b) gcry_mpi_clear_highbit ((a),(b))
#define mpi_rshift(a,b,c) gcry_mpi_rshift ((a),(b),(c))
#define mpi_lshift(a,b,c) gcry_mpi_lshift ((a),(b),(c))
#define mpi_set_opaque(a,b,c) gcry_mpi_set_opaque( (a), (b), (c) )
#define mpi_get_opaque(a,b) gcry_mpi_get_opaque( (a), (b) )
#endif /* GCRYPT_NO_MPI_MACROS */
/************************************
* *
* Symmetric Cipher Functions *
* *
************************************/
/* The data object used to hold a handle to an encryption object. */
struct gcry_cipher_handle;
typedef struct gcry_cipher_handle *gcry_cipher_hd_t;
#ifndef GCRYPT_NO_DEPRECATED
typedef struct gcry_cipher_handle *GCRY_CIPHER_HD _GCRY_GCC_ATTR_DEPRECATED;
typedef struct gcry_cipher_handle *GcryCipherHd _GCRY_GCC_ATTR_DEPRECATED;
#endif
/* All symmetric encryption algorithms are identified by their IDs.
More IDs may be registered at runtime. */
enum gcry_cipher_algos
{
GCRY_CIPHER_NONE = 0,
GCRY_CIPHER_IDEA = 1,
GCRY_CIPHER_3DES = 2,
GCRY_CIPHER_CAST5 = 3,
GCRY_CIPHER_BLOWFISH = 4,
GCRY_CIPHER_SAFER_SK128 = 5,
GCRY_CIPHER_DES_SK = 6,
GCRY_CIPHER_AES = 7,
GCRY_CIPHER_AES192 = 8,
GCRY_CIPHER_AES256 = 9,
GCRY_CIPHER_TWOFISH = 10,
/* Other cipher numbers are above 300 for OpenPGP reasons. */
GCRY_CIPHER_ARCFOUR = 301, /* Fully compatible with RSA's RC4 (tm). */
GCRY_CIPHER_DES = 302, /* Yes, this is single key 56 bit DES. */
GCRY_CIPHER_TWOFISH128 = 303,
GCRY_CIPHER_SERPENT128 = 304,
GCRY_CIPHER_SERPENT192 = 305,
GCRY_CIPHER_SERPENT256 = 306,
GCRY_CIPHER_RFC2268_40 = 307, /* Ron's Cipher 2 (40 bit). */
GCRY_CIPHER_RFC2268_128 = 308, /* Ron's Cipher 2 (128 bit). */
GCRY_CIPHER_SEED = 309, /* 128 bit cipher described in RFC4269. */
GCRY_CIPHER_CAMELLIA128 = 310,
GCRY_CIPHER_CAMELLIA192 = 311,
GCRY_CIPHER_CAMELLIA256 = 312
};
/* The Rijndael algorithm is basically AES, so provide some macros. */
#define GCRY_CIPHER_AES128 GCRY_CIPHER_AES
#define GCRY_CIPHER_RIJNDAEL GCRY_CIPHER_AES
#define GCRY_CIPHER_RIJNDAEL128 GCRY_CIPHER_AES128
#define GCRY_CIPHER_RIJNDAEL192 GCRY_CIPHER_AES192
#define GCRY_CIPHER_RIJNDAEL256 GCRY_CIPHER_AES256
/* The supported encryption modes. Note that not all of them are
supported for each algorithm. */
enum gcry_cipher_modes
{
GCRY_CIPHER_MODE_NONE = 0, /* Not yet specified. */
GCRY_CIPHER_MODE_ECB = 1, /* Electronic codebook. */
GCRY_CIPHER_MODE_CFB = 2, /* Cipher feedback. */
GCRY_CIPHER_MODE_CBC = 3, /* Cipher block chaining. */
GCRY_CIPHER_MODE_STREAM = 4, /* Used with stream ciphers. */
GCRY_CIPHER_MODE_OFB = 5, /* Outer feedback. */
GCRY_CIPHER_MODE_CTR = 6, /* Counter. */
GCRY_CIPHER_MODE_AESWRAP= 7 /* AES-WRAP algorithm. */
};
/* Flags used with the open function. */
enum gcry_cipher_flags
{
GCRY_CIPHER_SECURE = 1, /* Allocate in secure memory. */
GCRY_CIPHER_ENABLE_SYNC = 2, /* Enable CFB sync mode. */
GCRY_CIPHER_CBC_CTS = 4, /* Enable CBC cipher text stealing (CTS). */
GCRY_CIPHER_CBC_MAC = 8 /* Enable CBC message auth. code (MAC). */
};
/* Create a handle for algorithm ALGO to be used in MODE. FLAGS may
be given as an bitwise OR of the gcry_cipher_flags values. */
gcry_error_t gcry_cipher_open (gcry_cipher_hd_t *handle,
int algo, int mode, unsigned int flags);
/* Close the cioher handle H and release all resource. */
void gcry_cipher_close (gcry_cipher_hd_t h);
/* Perform various operations on the cipher object H. */
gcry_error_t gcry_cipher_ctl (gcry_cipher_hd_t h, int cmd, void *buffer,
size_t buflen);
/* Retrieve various information about the cipher object H. */
gcry_error_t gcry_cipher_info (gcry_cipher_hd_t h, int what, void *buffer,
size_t *nbytes);
/* Retrieve various information about the cipher algorithm ALGO. */
gcry_error_t gcry_cipher_algo_info (int algo, int what, void *buffer,
size_t *nbytes);
/* Map the cipher algorithm whose ID is contained in ALGORITHM to a
string representation of the algorithm name. For unknown algorithm
IDs this function returns "?". */
const char *gcry_cipher_algo_name (int algorithm) _GCRY_GCC_ATTR_PURE;
/* Map the algorithm name NAME to an cipher algorithm ID. Return 0 if
the algorithm name is not known. */
int gcry_cipher_map_name (const char *name) _GCRY_GCC_ATTR_PURE;
/* Given an ASN.1 object identifier in standard IETF dotted decimal
format in STRING, return the encryption mode associated with that
OID or 0 if not known or applicable. */
int gcry_cipher_mode_from_oid (const char *string) _GCRY_GCC_ATTR_PURE;
/* Encrypt the plaintext of size INLEN in IN using the cipher handle H
into the buffer OUT which has an allocated length of OUTSIZE. For
most algorithms it is possible to pass NULL for in and 0 for INLEN
and do a in-place decryption of the data provided in OUT. */
gcry_error_t gcry_cipher_encrypt (gcry_cipher_hd_t h,
void *out, size_t outsize,
const void *in, size_t inlen);
/* The counterpart to gcry_cipher_encrypt. */
gcry_error_t gcry_cipher_decrypt (gcry_cipher_hd_t h,
void *out, size_t outsize,
const void *in, size_t inlen);
/* Set KEY of length KEYLEN bytes for the cipher handle HD. */
gcry_error_t gcry_cipher_setkey (gcry_cipher_hd_t hd,
const void *key, size_t keylen);
/* Set initialization vector IV of length IVLEN for the cipher handle HD. */
gcry_error_t gcry_cipher_setiv (gcry_cipher_hd_t hd,
const void *iv, size_t ivlen);
/* Reset the handle to the state after open. */
#define gcry_cipher_reset(h) gcry_cipher_ctl ((h), GCRYCTL_RESET, NULL, 0)
/* Perform the OpenPGP sync operation if this is enabled for the
cipher handle H. */
#define gcry_cipher_sync(h) gcry_cipher_ctl( (h), GCRYCTL_CFB_SYNC, NULL, 0)
/* Enable or disable CTS in future calls to gcry_encrypt(). CBC mode only. */
#define gcry_cipher_cts(h,on) gcry_cipher_ctl( (h), GCRYCTL_SET_CBC_CTS, \
NULL, on )
/* Set counter for CTR mode. (CTR,CTRLEN) must denote a buffer of
block size length, or (NULL,0) to set the CTR to the all-zero block. */
gpg_error_t gcry_cipher_setctr (gcry_cipher_hd_t hd,
const void *ctr, size_t ctrlen);
/* Retrieved the key length in bytes used with algorithm A. */
size_t gcry_cipher_get_algo_keylen (int algo);
/* Retrieve the block length in bytes used with algorithm A. */
size_t gcry_cipher_get_algo_blklen (int algo);
/* Return 0 if the algorithm A is available for use. */
#define gcry_cipher_test_algo(a) \
gcry_cipher_algo_info( (a), GCRYCTL_TEST_ALGO, NULL, NULL )
/* Get a list consisting of the IDs of the loaded cipher modules. If
LIST is zero, write the number of loaded cipher modules to
LIST_LENGTH and return. If LIST is non-zero, the first
*LIST_LENGTH algorithm IDs are stored in LIST, which must be of
according size. In case there are less cipher modules than
*LIST_LENGTH, *LIST_LENGTH is updated to the correct number. */
gcry_error_t gcry_cipher_list (int *list, int *list_length);
/************************************
* *
* Asymmetric Cipher Functions *
* *
************************************/
/* The algorithms and their IDs we support. */
enum gcry_pk_algos
{
GCRY_PK_RSA = 1,
GCRY_PK_RSA_E = 2, /* (deprecated) */
GCRY_PK_RSA_S = 3, /* (deprecated) */
GCRY_PK_ELG_E = 16,
GCRY_PK_DSA = 17,
GCRY_PK_ELG = 20,
GCRY_PK_ECDSA = 301,
GCRY_PK_ECDH = 302
};
/* Flags describing usage capabilities of a PK algorithm. */
#define GCRY_PK_USAGE_SIGN 1 /* Good for signatures. */
#define GCRY_PK_USAGE_ENCR 2 /* Good for encryption. */
#define GCRY_PK_USAGE_CERT 4 /* Good to certify other keys. */
#define GCRY_PK_USAGE_AUTH 8 /* Good for authentication. */
#define GCRY_PK_USAGE_UNKN 128 /* Unknown usage flag. */
/* Encrypt the DATA using the public key PKEY and store the result as
a newly created S-expression at RESULT. */
gcry_error_t gcry_pk_encrypt (gcry_sexp_t *result,
gcry_sexp_t data, gcry_sexp_t pkey);
/* Decrypt the DATA using the private key SKEY and store the result as
a newly created S-expression at RESULT. */
gcry_error_t gcry_pk_decrypt (gcry_sexp_t *result,
gcry_sexp_t data, gcry_sexp_t skey);
/* Sign the DATA using the private key SKEY and store the result as
a newly created S-expression at RESULT. */
gcry_error_t gcry_pk_sign (gcry_sexp_t *result,
gcry_sexp_t data, gcry_sexp_t skey);
/* Check the signature SIGVAL on DATA using the public key PKEY. */
gcry_error_t gcry_pk_verify (gcry_sexp_t sigval,
gcry_sexp_t data, gcry_sexp_t pkey);
/* Check that private KEY is sane. */
gcry_error_t gcry_pk_testkey (gcry_sexp_t key);
/* Generate a new key pair according to the parameters given in
S_PARMS. The new key pair is returned in as an S-expression in
R_KEY. */
gcry_error_t gcry_pk_genkey (gcry_sexp_t *r_key, gcry_sexp_t s_parms);
/* Catch all function for miscellaneous operations. */
gcry_error_t gcry_pk_ctl (int cmd, void *buffer, size_t buflen);
/* Retrieve information about the public key algorithm ALGO. */
gcry_error_t gcry_pk_algo_info (int algo, int what,
void *buffer, size_t *nbytes);
/* Map the public key algorithm whose ID is contained in ALGORITHM to
a string representation of the algorithm name. For unknown
algorithm IDs this functions returns "?". */
const char *gcry_pk_algo_name (int algorithm) _GCRY_GCC_ATTR_PURE;
/* Map the algorithm NAME to a public key algorithm Id. Return 0 if
the algorithm name is not known. */
int gcry_pk_map_name (const char* name) _GCRY_GCC_ATTR_PURE;
/* Return what is commonly referred as the key length for the given
public or private KEY. */
unsigned int gcry_pk_get_nbits (gcry_sexp_t key) _GCRY_GCC_ATTR_PURE;
/* Please note that keygrip is still experimental and should not be
used without contacting the author. */
unsigned char *gcry_pk_get_keygrip (gcry_sexp_t key, unsigned char *array);
/* Return 0 if the public key algorithm A is available for use. */
#define gcry_pk_test_algo(a) \
gcry_pk_algo_info( (a), GCRYCTL_TEST_ALGO, NULL, NULL )
/* Get a list consisting of the IDs of the loaded pubkey modules. If
LIST is zero, write the number of loaded pubkey modules to
LIST_LENGTH and return. If LIST is non-zero, the first
*LIST_LENGTH algorithm IDs are stored in LIST, which must be of
according size. In case there are less pubkey modules than
*LIST_LENGTH, *LIST_LENGTH is updated to the correct number. */
gcry_error_t gcry_pk_list (int *list, int *list_length);
/************************************
* *
* Cryptograhic Hash Functions *
* *
************************************/
/* Algorithm IDs for the hash functions we know about. Not all of them
are implemnted. */
enum gcry_md_algos
{
GCRY_MD_NONE = 0,
GCRY_MD_MD5 = 1,
GCRY_MD_SHA1 = 2,
GCRY_MD_RMD160 = 3,
GCRY_MD_MD2 = 5,
- GCRY_MD_TIGER = 6, /* TIGER/192. */
+ GCRY_MD_TIGER = 6, /* TIGER/192 as used by gpg <= 1.3.2. */
GCRY_MD_HAVAL = 7, /* HAVAL, 5 pass, 160 bit. */
GCRY_MD_SHA256 = 8,
GCRY_MD_SHA384 = 9,
GCRY_MD_SHA512 = 10,
GCRY_MD_SHA224 = 11,
GCRY_MD_MD4 = 301,
GCRY_MD_CRC32 = 302,
GCRY_MD_CRC32_RFC1510 = 303,
GCRY_MD_CRC24_RFC2440 = 304,
- GCRY_MD_WHIRLPOOL = 305
+ GCRY_MD_WHIRLPOOL = 305,
+ GCRY_MD_TIGER1 = 306, /* TIGER fixed. */
+ GCRY_MD_TIGER2 = 307 /* TIGER2 variant. */
};
/* Flags used with the open function. */
enum gcry_md_flags
{
GCRY_MD_FLAG_SECURE = 1, /* Allocate all buffers in "secure" memory. */
GCRY_MD_FLAG_HMAC = 2 /* Make an HMAC out of this algorithm. */
};
/* (Forward declaration.) */
struct gcry_md_context;
/* This object is used to hold a handle to a message digest object.
This structure is private - only to be used by the public gcry_md_*
macros. */
typedef struct gcry_md_handle
{
/* Actual context. */
struct gcry_md_context *ctx;
/* Buffer management. */
int bufpos;
int bufsize;
unsigned char buf[1];
} *gcry_md_hd_t;
/* Compatibility types, do not use them. */
#ifndef GCRYPT_NO_DEPRECATED
typedef struct gcry_md_handle *GCRY_MD_HD _GCRY_GCC_ATTR_DEPRECATED;
typedef struct gcry_md_handle *GcryMDHd _GCRY_GCC_ATTR_DEPRECATED;
#endif
/* Create a message digest object for algorithm ALGO. FLAGS may be
given as an bitwise OR of the gcry_md_flags values. ALGO may be
given as 0 if the algorithms to be used are later set using
gcry_md_enable. */
gcry_error_t gcry_md_open (gcry_md_hd_t *h, int algo, unsigned int flags);
/* Release the message digest object HD. */
void gcry_md_close (gcry_md_hd_t hd);
/* Add the message digest algorithm ALGO to the digest object HD. */
gcry_error_t gcry_md_enable (gcry_md_hd_t hd, int algo);
/* Create a new digest object as an exact copy of the object HD. */
gcry_error_t gcry_md_copy (gcry_md_hd_t *bhd, gcry_md_hd_t ahd);
/* Reset the digest object HD to its initial state. */
void gcry_md_reset (gcry_md_hd_t hd);
/* Perform various operations on the digest object HD. */
gcry_error_t gcry_md_ctl (gcry_md_hd_t hd, int cmd,
void *buffer, size_t buflen);
/* Pass LENGTH bytes of data in BUFFER to the digest object HD so that
it can update the digest values. This is the actual hash
function. */
void gcry_md_write (gcry_md_hd_t hd, const void *buffer, size_t length);
/* Read out the final digest from HD return the digest value for
algorithm ALGO. */
unsigned char *gcry_md_read (gcry_md_hd_t hd, int algo);
/* Convenience function to calculate the hash from the data in BUFFER
of size LENGTH using the algorithm ALGO avoiding the creating of a
hash object. The hash is returned in the caller provided buffer
DIGEST which must be large enough to hold the digest of the given
algorithm. */
void gcry_md_hash_buffer (int algo, void *digest,
const void *buffer, size_t length);
/* Retrieve the algorithm used with HD. This does not work reliable
if more than one algorithm is enabled in HD. */
int gcry_md_get_algo (gcry_md_hd_t hd);
/* Retrieve the length in bytes of the digest yielded by algorithm
ALGO. */
unsigned int gcry_md_get_algo_dlen (int algo);
/* Return true if the the algorithm ALGO is enabled in the digest
object A. */
int gcry_md_is_enabled (gcry_md_hd_t a, int algo);
/* Return true if the digest object A is allocated in "secure" memory. */
int gcry_md_is_secure (gcry_md_hd_t a);
/* Retrieve various information about the object H. */
gcry_error_t gcry_md_info (gcry_md_hd_t h, int what, void *buffer,
size_t *nbytes);
/* Retrieve various information about the algorithm ALGO. */
gcry_error_t gcry_md_algo_info (int algo, int what, void *buffer,
size_t *nbytes);
/* Map the digest algorithm id ALGO to a string representation of the
algorithm name. For unknown algorithms this function returns
"?". */
const char *gcry_md_algo_name (int algo) _GCRY_GCC_ATTR_PURE;
/* Map the algorithm NAME to a digest algorithm Id. Return 0 if
the algorithm name is not known. */
int gcry_md_map_name (const char* name) _GCRY_GCC_ATTR_PURE;
/* For use with the HMAC feature, the set MAC key to the KEY of
KEYLEN bytes. */
gcry_error_t gcry_md_setkey (gcry_md_hd_t hd, const void *key, size_t keylen);
/* Start or stop debugging for digest handle HD; i.e. create a file
named dbgmd-<n>.<suffix> while hashing. If SUFFIX is NULL,
debugging stops and the file will be closed. */
void gcry_md_debug (gcry_md_hd_t hd, const char *suffix);
/* Update the hash(s) of H with the character C. This is a buffered
version of the gcry_md_write function. */
#define gcry_md_putc(h,c) \
do { \
gcry_md_hd_t h__ = (h); \
if( (h__)->bufpos == (h__)->bufsize ) \
gcry_md_write( (h__), NULL, 0 ); \
(h__)->buf[(h__)->bufpos++] = (c) & 0xff; \
} while(0)
/* Finalize the digest calculation. This is not really needed because
gcry_md_read() does this implicitly. */
#define gcry_md_final(a) \
gcry_md_ctl ((a), GCRYCTL_FINALIZE, NULL, 0)
/* Return 0 if the algorithm A is available for use. */
#define gcry_md_test_algo(a) \
gcry_md_algo_info( (a), GCRYCTL_TEST_ALGO, NULL, NULL )
/* Return an DER encoded ASN.1 OID for the algorithm A in buffer B. N
must point to size_t variable with the available size of buffer B.
After return it will receive the actual size of the returned
OID. */
#define gcry_md_get_asnoid(a,b,n) \
gcry_md_algo_info((a), GCRYCTL_GET_ASNOID, (b), (n))
/* Enable debugging for digest object A; i.e. create files named
dbgmd-<n>.<string> while hashing. B is a string used as the suffix
for the filename. This macro is deprecated, use gcry_md_debug. */
#ifndef GCRYPT_NO_DEPRECATED
#define gcry_md_start_debug(a,b) \
gcry_md_ctl( (a), GCRYCTL_START_DUMP, (b), 0 )
/* Disable the debugging of A. This macro is deprecated, use
gcry_md_debug. */
#define gcry_md_stop_debug(a,b) \
gcry_md_ctl( (a), GCRYCTL_STOP_DUMP, (b), 0 )
#endif
/* Get a list consisting of the IDs of the loaded message digest
modules. If LIST is zero, write the number of loaded message
digest modules to LIST_LENGTH and return. If LIST is non-zero, the
first *LIST_LENGTH algorithm IDs are stored in LIST, which must be
of according size. In case there are less message digest modules
than *LIST_LENGTH, *LIST_LENGTH is updated to the correct
number. */
gcry_error_t gcry_md_list (int *list, int *list_length);
/* Alternative interface for asymmetric cryptography. This interface
is deprecated. */
/* The algorithm IDs. */
typedef enum gcry_ac_id
{
GCRY_AC_RSA = 1,
GCRY_AC_DSA = 17,
GCRY_AC_ELG = 20,
GCRY_AC_ELG_E = 16
}
gcry_ac_id_t;
/* Key types. */
typedef enum gcry_ac_key_type
{
GCRY_AC_KEY_SECRET,
GCRY_AC_KEY_PUBLIC
}
gcry_ac_key_type_t;
/* Encoding methods. */
typedef enum gcry_ac_em
{
GCRY_AC_EME_PKCS_V1_5,
GCRY_AC_EMSA_PKCS_V1_5
}
gcry_ac_em_t;
/* Encryption and Signature schemes. */
typedef enum gcry_ac_scheme
{
GCRY_AC_ES_PKCS_V1_5,
GCRY_AC_SSA_PKCS_V1_5
}
gcry_ac_scheme_t;
/* AC data. */
#define GCRY_AC_FLAG_DEALLOC (1 << 0)
#define GCRY_AC_FLAG_COPY (1 << 1)
#define GCRY_AC_FLAG_NO_BLINDING (1 << 2)
/* This type represents a `data set'. */
typedef struct gcry_ac_data *gcry_ac_data_t;
/* This type represents a single `key', either a secret one or a
public one. */
typedef struct gcry_ac_key *gcry_ac_key_t;
/* This type represents a `key pair' containing a secret and a public
key. */
typedef struct gcry_ac_key_pair *gcry_ac_key_pair_t;
/* This type represents a `handle' that is needed by functions
performing cryptographic operations. */
typedef struct gcry_ac_handle *gcry_ac_handle_t;
typedef gpg_error_t (*gcry_ac_data_read_cb_t) (void *opaque,
unsigned char *buffer,
size_t *buffer_n);
typedef gpg_error_t (*gcry_ac_data_write_cb_t) (void *opaque,
unsigned char *buffer,
size_t buffer_n);
typedef enum
{
GCRY_AC_IO_READABLE,
GCRY_AC_IO_WRITABLE
}
gcry_ac_io_mode_t;
typedef enum
{
GCRY_AC_IO_STRING,
GCRY_AC_IO_CALLBACK
}
gcry_ac_io_type_t;
typedef struct gcry_ac_io
{
/* This is an INTERNAL structure, do NOT use manually. */
gcry_ac_io_mode_t mode _GCRY_ATTR_INTERNAL;
gcry_ac_io_type_t type _GCRY_ATTR_INTERNAL;
union
{
union
{
struct
{
gcry_ac_data_read_cb_t cb;
void *opaque;
} callback;
struct
{
unsigned char *data;
size_t data_n;
} string;
void *opaque;
} readable;
union
{
struct
{
gcry_ac_data_write_cb_t cb;
void *opaque;
} callback;
struct
{
unsigned char **data;
size_t *data_n;
} string;
void *opaque;
} writable;
} io _GCRY_ATTR_INTERNAL;
}
gcry_ac_io_t;
/* The caller of gcry_ac_key_pair_generate can provide one of these
structures in order to influence the key generation process in an
algorithm-specific way. */
typedef struct gcry_ac_key_spec_rsa
{
gcry_mpi_t e; /* E to use. */
} gcry_ac_key_spec_rsa_t;
/* Structure used for passing data to the implementation of the
`EME-PKCS-V1_5' encoding method. */
typedef struct gcry_ac_eme_pkcs_v1_5
{
size_t key_size;
} gcry_ac_eme_pkcs_v1_5_t;
typedef enum gcry_md_algos gcry_md_algo_t;
/* Structure used for passing data to the implementation of the
`EMSA-PKCS-V1_5' encoding method. */
typedef struct gcry_ac_emsa_pkcs_v1_5
{
gcry_md_algo_t md;
size_t em_n;
} gcry_ac_emsa_pkcs_v1_5_t;
/* Structure used for passing data to the implementation of the
`SSA-PKCS-V1_5' signature scheme. */
typedef struct gcry_ac_ssa_pkcs_v1_5
{
gcry_md_algo_t md;
} gcry_ac_ssa_pkcs_v1_5_t;
/* Returns a new, empty data set in DATA. */
gcry_error_t gcry_ac_data_new (gcry_ac_data_t *data);
/* Destroy the data set DATA. */
void gcry_ac_data_destroy (gcry_ac_data_t data);
/* Create a copy of the data set DATA and store it in DATA_CP. */
gcry_error_t gcry_ac_data_copy (gcry_ac_data_t *data_cp,
gcry_ac_data_t data);
/* Return the number of named MPI values inside of the data set
DATA. */
unsigned int gcry_ac_data_length (gcry_ac_data_t data);
/* Destroy any values contained in the data set DATA. */
void gcry_ac_data_clear (gcry_ac_data_t data);
/* Add the value MPI to DATA with the label NAME. If FLAGS contains
GCRY_AC_FLAG_DATA_COPY, the data set will contain copies of NAME
and MPI. If FLAGS contains GCRY_AC_FLAG_DATA_DEALLOC or
GCRY_AC_FLAG_DATA_COPY, the values contained in the data set will
be deallocated when they are to be removed from the data set. */
gcry_error_t gcry_ac_data_set (gcry_ac_data_t data, unsigned int flags,
const char *name, gcry_mpi_t mpi);
/* Store the value labelled with NAME found in DATA in MPI. If FLAGS
contains GCRY_AC_FLAG_COPY, store a copy of the MPI value contained
in the data set. MPI may be NULL. */
gcry_error_t gcry_ac_data_get_name (gcry_ac_data_t data, unsigned int flags,
const char *name, gcry_mpi_t *mpi);
/* Stores in NAME and MPI the named MPI value contained in the data
set DATA with the index IDX. If FLAGS contains GCRY_AC_FLAG_COPY,
store copies of the values contained in the data set. NAME or MPI
may be NULL. */
gcry_error_t gcry_ac_data_get_index (gcry_ac_data_t data, unsigned int flags,
unsigned int idx,
const char **name, gcry_mpi_t *mpi);
/* Convert the data set DATA into a new S-Expression, which is to be
stored in SEXP, according to the identifiers contained in
IDENTIFIERS. */
gcry_error_t gcry_ac_data_to_sexp (gcry_ac_data_t data, gcry_sexp_t *sexp,
const char **identifiers);
/* Create a new data set, which is to be stored in DATA_SET, from the
S-Expression SEXP, according to the identifiers contained in
IDENTIFIERS. */
gcry_error_t gcry_ac_data_from_sexp (gcry_ac_data_t *data, gcry_sexp_t sexp,
const char **identifiers);
/* Initialize AC_IO according to MODE, TYPE and the variable list of
arguments. The list of variable arguments to specify depends on
the given TYPE. */
void gcry_ac_io_init (gcry_ac_io_t *ac_io, gcry_ac_io_mode_t mode,
gcry_ac_io_type_t type, ...);
/* Initialize AC_IO according to MODE, TYPE and the variable list of
arguments AP. The list of variable arguments to specify depends on
the given TYPE. */
void gcry_ac_io_init_va (gcry_ac_io_t *ac_io, gcry_ac_io_mode_t mode,
gcry_ac_io_type_t type, va_list ap);
/* Create a new ac handle. */
gcry_error_t gcry_ac_open (gcry_ac_handle_t *handle,
gcry_ac_id_t algorithm, unsigned int flags);
/* Destroy an ac handle. */
void gcry_ac_close (gcry_ac_handle_t handle);
/* Initialize a key from a given data set. */
gcry_error_t gcry_ac_key_init (gcry_ac_key_t *key, gcry_ac_handle_t handle,
gcry_ac_key_type_t type, gcry_ac_data_t data);
/* Generates a new key pair via the handle HANDLE of NBITS bits and
stores it in KEY_PAIR. In case non-standard settings are wanted, a
pointer to a structure of type gcry_ac_key_spec_<algorithm>_t,
matching the selected algorithm, can be given as KEY_SPEC.
MISC_DATA is not used yet. */
gcry_error_t gcry_ac_key_pair_generate (gcry_ac_handle_t handle,
unsigned int nbits, void *spec,
gcry_ac_key_pair_t *key_pair,
gcry_mpi_t **misc_data);
/* Returns the key of type WHICH out of the key pair KEY_PAIR. */
gcry_ac_key_t gcry_ac_key_pair_extract (gcry_ac_key_pair_t key_pair,
gcry_ac_key_type_t which);
/* Returns the data set contained in the key KEY. */
gcry_ac_data_t gcry_ac_key_data_get (gcry_ac_key_t key);
/* Verifies that the key KEY is sane via HANDLE. */
gcry_error_t gcry_ac_key_test (gcry_ac_handle_t handle, gcry_ac_key_t key);
/* Stores the number of bits of the key KEY in NBITS via HANDLE. */
gcry_error_t gcry_ac_key_get_nbits (gcry_ac_handle_t handle,
gcry_ac_key_t key, unsigned int *nbits);
/* Writes the 20 byte long key grip of the key KEY to KEY_GRIP via
HANDLE. */
gcry_error_t gcry_ac_key_get_grip (gcry_ac_handle_t handle, gcry_ac_key_t key,
unsigned char *key_grip);
/* Destroy a key. */
void gcry_ac_key_destroy (gcry_ac_key_t key);
/* Destroy a key pair. */
void gcry_ac_key_pair_destroy (gcry_ac_key_pair_t key_pair);
/* Encodes a message according to the encoding method METHOD. OPTIONS
must be a pointer to a method-specific structure
(gcry_ac_em*_t). */
gcry_error_t gcry_ac_data_encode (gcry_ac_em_t method,
unsigned int flags, void *options,
gcry_ac_io_t *io_read,
gcry_ac_io_t *io_write);
/* Decodes a message according to the encoding method METHOD. OPTIONS
must be a pointer to a method-specific structure
(gcry_ac_em*_t). */
gcry_error_t gcry_ac_data_decode (gcry_ac_em_t method,
unsigned int flags, void *options,
gcry_ac_io_t *io_read,
gcry_ac_io_t *io_write);
/* Encrypt the plain text MPI value DATA_PLAIN with the key KEY under
the control of the flags FLAGS and store the resulting data set
into DATA_ENCRYPTED. */
gcry_error_t gcry_ac_data_encrypt (gcry_ac_handle_t handle,
unsigned int flags,
gcry_ac_key_t key,
gcry_mpi_t data_plain,
gcry_ac_data_t *data_encrypted);
/* Decrypt the decrypted data contained in the data set DATA_ENCRYPTED
with the key KEY under the control of the flags FLAGS and store the
resulting plain text MPI value in DATA_PLAIN. */
gcry_error_t gcry_ac_data_decrypt (gcry_ac_handle_t handle,
unsigned int flags,
gcry_ac_key_t key,
gcry_mpi_t *data_plain,
gcry_ac_data_t data_encrypted);
/* Sign the data contained in DATA with the key KEY and store the
resulting signature in the data set DATA_SIGNATURE. */
gcry_error_t gcry_ac_data_sign (gcry_ac_handle_t handle,
gcry_ac_key_t key,
gcry_mpi_t data,
gcry_ac_data_t *data_signature);
/* Verify that the signature contained in the data set DATA_SIGNATURE
is indeed the result of signing the data contained in DATA with the
secret key belonging to the public key KEY. */
gcry_error_t gcry_ac_data_verify (gcry_ac_handle_t handle,
gcry_ac_key_t key,
gcry_mpi_t data,
gcry_ac_data_t data_signature);
/* Encrypts the plain text readable from IO_MESSAGE through HANDLE
with the public key KEY according to SCHEME, FLAGS and OPTS. If
OPTS is not NULL, it has to be a pointer to a structure specific to
the chosen scheme (gcry_ac_es_*_t). The encrypted message is
written to IO_CIPHER. */
gcry_error_t gcry_ac_data_encrypt_scheme (gcry_ac_handle_t handle,
gcry_ac_scheme_t scheme,
unsigned int flags, void *opts,
gcry_ac_key_t key,
gcry_ac_io_t *io_message,
gcry_ac_io_t *io_cipher);
/* Decrypts the cipher text readable from IO_CIPHER through HANDLE
with the secret key KEY according to SCHEME, @var{flags} and OPTS.
If OPTS is not NULL, it has to be a pointer to a structure specific
to the chosen scheme (gcry_ac_es_*_t). The decrypted message is
written to IO_MESSAGE. */
gcry_error_t gcry_ac_data_decrypt_scheme (gcry_ac_handle_t handle,
gcry_ac_scheme_t scheme,
unsigned int flags, void *opts,
gcry_ac_key_t key,
gcry_ac_io_t *io_cipher,
gcry_ac_io_t *io_message);
/* Signs the message readable from IO_MESSAGE through HANDLE with the
secret key KEY according to SCHEME, FLAGS and OPTS. If OPTS is not
NULL, it has to be a pointer to a structure specific to the chosen
scheme (gcry_ac_ssa_*_t). The signature is written to
IO_SIGNATURE. */
gcry_error_t gcry_ac_data_sign_scheme (gcry_ac_handle_t handle,
gcry_ac_scheme_t scheme,
unsigned int flags, void *opts,
gcry_ac_key_t key,
gcry_ac_io_t *io_message,
gcry_ac_io_t *io_signature);
/* Verifies through HANDLE that the signature readable from
IO_SIGNATURE is indeed the result of signing the message readable
from IO_MESSAGE with the secret key belonging to the public key KEY
according to SCHEME and OPTS. If OPTS is not NULL, it has to be an
anonymous structure (gcry_ac_ssa_*_t) specific to the chosen
scheme. */
gcry_error_t gcry_ac_data_verify_scheme (gcry_ac_handle_t handle,
gcry_ac_scheme_t scheme,
unsigned int flags, void *opts,
gcry_ac_key_t key,
gcry_ac_io_t *io_message,
gcry_ac_io_t *io_signature);
/* Store the textual representation of the algorithm whose id is given
in ALGORITHM in NAME. This function is deprecated; use
gcry_pk_algo_name. */
#ifndef GCRYPT_NO_DEPRECATED
gcry_error_t gcry_ac_id_to_name (gcry_ac_id_t algorithm,
const char **name)
/* */ _GCRY_GCC_ATTR_DEPRECATED;
/* Store the numeric ID of the algorithm whose textual representation
is contained in NAME in ALGORITHM. This function is deprecated;
use gcry_pk_map_name. */
gcry_error_t gcry_ac_name_to_id (const char *name,
gcry_ac_id_t *algorithm)
/* */ _GCRY_GCC_ATTR_DEPRECATED;
#endif
/************************************
* *
* Random Generating Functions *
* *
************************************/
/* The possible values for the random quality. The rule of thumb is
to use STRONG for session keys and VERY_STRONG for key material.
WEAK is usually an alias for STRONG and should not be used anymore
(except with gcry_mpi_randomize); use gcry_create_nonce instead. */
typedef enum gcry_random_level
{
GCRY_WEAK_RANDOM = 0,
GCRY_STRONG_RANDOM = 1,
GCRY_VERY_STRONG_RANDOM = 2
}
gcry_random_level_t;
/* Fill BUFFER with LENGTH bytes of random, using random numbers of
quality LEVEL. */
void gcry_randomize (void *buffer, size_t length,
enum gcry_random_level level);
/* Add the external random from BUFFER with LENGTH bytes into the
pool. QUALITY should either be -1 for unknown or in the range of 0
to 100 */
gcry_error_t gcry_random_add_bytes (const void *buffer, size_t length,
int quality);
/* If random numbers are used in an application, this macro should be
called from time to time so that new stuff gets added to the
internal pool of the RNG. */
#define gcry_fast_random_poll() gcry_control (GCRYCTL_FAST_POLL, NULL)
/* Return NBYTES of allocated random using a random numbers of quality
LEVEL. */
void *gcry_random_bytes (size_t nbytes, enum gcry_random_level level)
_GCRY_GCC_ATTR_MALLOC;
/* Return NBYTES of allocated random using a random numbers of quality
LEVEL. The random numbers are created returned in "secure"
memory. */
void *gcry_random_bytes_secure (size_t nbytes, enum gcry_random_level level)
_GCRY_GCC_ATTR_MALLOC;
/* Set the big integer W to a random value of NBITS using a random
generator with quality LEVEL. Note that by using a level of
GCRY_WEAK_RANDOM gcry_create_nonce is used internally. */
void gcry_mpi_randomize (gcry_mpi_t w,
unsigned int nbits, enum gcry_random_level level);
/* Create an unpredicable nonce of LENGTH bytes in BUFFER. */
void gcry_create_nonce (void *buffer, size_t length);
/*******************************/
/* */
/* Prime Number Functions */
/* */
/*******************************/
/* Mode values passed to a gcry_prime_check_func_t. */
#define GCRY_PRIME_CHECK_AT_FINISH 0
#define GCRY_PRIME_CHECK_AT_GOT_PRIME 1
#define GCRY_PRIME_CHECK_AT_MAYBE_PRIME 2
/* The function should return 1 if the operation shall continue, 0 to
reject the prime candidate. */
typedef int (*gcry_prime_check_func_t) (void *arg, int mode,
gcry_mpi_t candidate);
/* Flags for gcry_prime_generate(): */
/* Allocate prime numbers and factors in secure memory. */
#define GCRY_PRIME_FLAG_SECRET (1 << 0)
/* Make sure that at least one prime factor is of size
`FACTOR_BITS'. */
#define GCRY_PRIME_FLAG_SPECIAL_FACTOR (1 << 1)
/* Generate a new prime number of PRIME_BITS bits and store it in
PRIME. If FACTOR_BITS is non-zero, one of the prime factors of
(prime - 1) / 2 must be FACTOR_BITS bits long. If FACTORS is
non-zero, allocate a new, NULL-terminated array holding the prime
factors and store it in FACTORS. FLAGS might be used to influence
the prime number generation process. */
gcry_error_t gcry_prime_generate (gcry_mpi_t *prime,
unsigned int prime_bits,
unsigned int factor_bits,
gcry_mpi_t **factors,
gcry_prime_check_func_t cb_func,
void *cb_arg,
gcry_random_level_t random_level,
unsigned int flags);
/* Find a generator for PRIME where the factorization of (prime-1) is
in the NULL terminated array FACTORS. Return the generator as a
newly allocated MPI in R_G. If START_G is not NULL, use this as
teh start for the search. */
gcry_error_t gcry_prime_group_generator (gcry_mpi_t *r_g,
gcry_mpi_t prime,
gcry_mpi_t *factors,
gcry_mpi_t start_g);
/* Convenience function to release the FACTORS array. */
void gcry_prime_release_factors (gcry_mpi_t *factors);
/* Check wether the number X is prime. */
gcry_error_t gcry_prime_check (gcry_mpi_t x, unsigned int flags);
/************************************
* *
* Miscellaneous Stuff *
* *
************************************/
/* Log levels used by the internal logging facility. */
enum gcry_log_levels
{
GCRY_LOG_CONT = 0, /* (Continue the last log line.) */
GCRY_LOG_INFO = 10,
GCRY_LOG_WARN = 20,
GCRY_LOG_ERROR = 30,
GCRY_LOG_FATAL = 40,
GCRY_LOG_BUG = 50,
GCRY_LOG_DEBUG = 100
};
/* Type for progress handlers. */
typedef void (*gcry_handler_progress_t) (void *, const char *, int, int, int);
/* Type for memory allocation handlers. */
typedef void *(*gcry_handler_alloc_t) (size_t n);
/* Type for secure memory check handlers. */
typedef int (*gcry_handler_secure_check_t) (const void *);
/* Type for memory reallocation handlers. */
typedef void *(*gcry_handler_realloc_t) (void *p, size_t n);
/* Type for memory free handlers. */
typedef void (*gcry_handler_free_t) (void *);
/* Type for out-of-memory handlers. */
typedef int (*gcry_handler_no_mem_t) (void *, size_t, unsigned int);
/* Type for fatal error handlers. */
typedef void (*gcry_handler_error_t) (void *, int, const char *);
/* Type for logging handlers. */
typedef void (*gcry_handler_log_t) (void *, int, const char *, va_list);
/* Certain operations can provide progress information. This function
is used to register a handler for retrieving these information. */
void gcry_set_progress_handler (gcry_handler_progress_t cb, void *cb_data);
/* Register a custom memory allocation functions. */
void gcry_set_allocation_handler (
gcry_handler_alloc_t func_alloc,
gcry_handler_alloc_t func_alloc_secure,
gcry_handler_secure_check_t func_secure_check,
gcry_handler_realloc_t func_realloc,
gcry_handler_free_t func_free);
/* Register a function used instead of the internal out of memory
handler. */
void gcry_set_outofcore_handler (gcry_handler_no_mem_t h, void *opaque);
/* Register a function used instead of the internal fatal error
handler. */
void gcry_set_fatalerror_handler (gcry_handler_error_t fnc, void *opaque);
/* Register a function used instead of the internal logging
facility. */
void gcry_set_log_handler (gcry_handler_log_t f, void *opaque);
/* Reserved for future use. */
void gcry_set_gettext_handler (const char *(*f)(const char*));
/* Libgcrypt uses its own memory allocation. It is important to use
gcry_free () to release memory allocated by libgcrypt. */
void *gcry_malloc (size_t n) _GCRY_GCC_ATTR_MALLOC;
void *gcry_calloc (size_t n, size_t m) _GCRY_GCC_ATTR_MALLOC;
void *gcry_malloc_secure (size_t n) _GCRY_GCC_ATTR_MALLOC;
void *gcry_calloc_secure (size_t n, size_t m) _GCRY_GCC_ATTR_MALLOC;
void *gcry_realloc (void *a, size_t n);
char *gcry_strdup (const char *string) _GCRY_GCC_ATTR_MALLOC;
void *gcry_xmalloc (size_t n) _GCRY_GCC_ATTR_MALLOC;
void *gcry_xcalloc (size_t n, size_t m) _GCRY_GCC_ATTR_MALLOC;
void *gcry_xmalloc_secure (size_t n) _GCRY_GCC_ATTR_MALLOC;
void *gcry_xcalloc_secure (size_t n, size_t m) _GCRY_GCC_ATTR_MALLOC;
void *gcry_xrealloc (void *a, size_t n);
char *gcry_xstrdup (const char * a) _GCRY_GCC_ATTR_MALLOC;
void gcry_free (void *a);
/* Return true if A is allocated in "secure" memory. */
int gcry_is_secure (const void *a) _GCRY_GCC_ATTR_PURE;
/* Return true if Libgcrypt is in FIPS mode. */
#define gcry_fips_mode_active() !!gcry_control (GCRYCTL_FIPS_MODE_P, 0)
/* Include support for Libgcrypt modules. */
#include <gcrypt-module.h>
#if 0 /* (Keep Emacsens' auto-indent happy.) */
{
#endif
#ifdef __cplusplus
}
#endif
#endif /* _GCRYPT_H */
/*
@emacs_local_vars_begin@
@emacs_local_vars_read_only@
@emacs_local_vars_end@
*/
diff --git a/tests/ChangeLog b/tests/ChangeLog
index 09397f99..45f36ac4 100644
--- a/tests/ChangeLog
+++ b/tests/ChangeLog
@@ -1,797 +1,802 @@
+2010-03-26 Werner Koch <wk@g10code.com>
+
+ * basic.c (check_digests): Add tests for TIGER1 and TIGER2 from
+ the NESSIE project.
+
2010-01-21 Werner Koch <wk@g10code.com>
* benchmark.c [_GCRYPT_IN_LIBGCRYPT]: Include libcompat.h.
(start_timer, stop_timer) [__MINGW32CE__]: Use GetThreadTimes.
* Makefile.am (LDADD): Add libcompat.
2009-12-10 Werner Koch <wk@g10code.com>
* basic.c (check_ctr_cipher): Add some return code checks.
* benchmark.c (cipher_bench): Merge Stream with ECB column.
2009-12-09 Werner Koch <wk@g10code.com>
* aeswrap.c: New.
2009-07-09 Werner Koch <wk@g10code.com>
* benchmark.c (progress_cb): New.
(main): Add option --progress.
2009-06-08 Werner Koch <wk@g10code.com>
* benchmark.c (cipher_bench): Center labels. Suggested by Brad Hards.
2009-02-16 Werner Koch <wk@g10code.com>
* fipsdrv.c (print_buffer): Remove parens from initializer for
better portability. Reported by Dan Fandrich.
2009-02-13 Werner Koch <wk@g10code.com>
* rsacvt.c (compute_missing): Fix dqm1 computation. Take care of
openpgp flag.
(main): Add option --openpgp.
2009-02-11 Werner Koch <wk@g10code.com>
* rsacvt.c: New.
2009-01-22 Werner Koch <wk@g10code.com>
* cavs_tests.sh: Pass option -D to driver if required.
* fipsdrv.c (run_dsa_sign): Use hash of the data.
(dsa_gen_with_seed): New.
(run_dsa_pqg_gen): Add args SEED and SEEDLEN and use them.
(main): Optically take a seed for dsa-pgq-gen.
(standalone_mode): New.
(main): Add option --standalone.
(print_dsa_domain_parameters): Implement standalone mode.
2009-01-21 Werner Koch <wk@g10code.com>
* fipsdrv.c (run_dsa_verify): Use gcry_mpi_scan again.
(run_rsa_derive): Also print N.
* fipsdrv.c (run_dsa_verify): Use hash of the data.
* pubkey.c (get_dsa_key_fips186_with_seed_new): New.
(check_run): Call it.
2008-12-11 Werner Koch <wk@g10code.com>
* fipsdrv.c (run_rsa_derive): New.
(main): Add mode rsa-derive.
2008-12-10 Werner Koch <wk@g10code.com>
* basic.c (main): Check for error after running self-test in
non-fips mode.
* pubkey.c (get_dsa_key_with_domain_new): New.
(get_dsa_key_fips186_with_domain_new): New.
(check_run): Call them.
2008-12-08 Werner Koch <wk@g10code.com>
* fipsdrv.c [W32]: Include fcntl.h.
2008-12-05 Werner Koch <wk@g10code.com>
* pubkey.c (get_dsa_key_new): Add arg transient_key.
(check_run): Use it.
2008-12-03 Werner Koch <wk@g10code.com>
* fipsdrv.c (run_dsa_pqg_gen): Facor code out into ..
(print_dsa_domain_parameters, dsa_gen): .. these two new functions.
(print_sexp, read_sexp_from_file): New.
(run_dsa_sign): New.
(run_dsa_verify): New.
2008-12-02 Werner Koch <wk@g10code.com>
* fipsdrv.c: All standalone build.
* mpitests.c (mpi_powm): New.
2008-11-28 Werner Koch <wk@g10code.com>
* fips186-dsa.c: New.
* fipsdrv.c (print_mpi_line, print_data_line): New.
(run_dsa_pqg_gen): New.
(usage): Add mode dsa-pqg-gen.
2008-11-25 Werner Koch <wk@g10code.com>
* pubkey.c (get_dsa_key_new): New.
2008-11-24 Werner Koch <wk@g10code.com>
* tsexp.c (basic): Add test for format character S.
* pubkey.c (check_x931_derived_key): New.
(get_keys_x931_new): New.
(check_run): Check X9.31 generated RSA key.
2008-11-07 Werner Koch <wk@g10code.com>
* fipsdrv.c (run_cipher_mct_loop, get_current_iv): New.
(read_textline, read_hexline, skip_to_empty_line): New.
(main): New option --mct-server.
* cavs_driver.pl: Update from upstream and adjust to new fipsdrv.
2008-11-05 Werner Koch <wk@g10code.com>
* fipsdrv.c (run_encrypt_decrypt): Disable weak key detection.
2008-10-31 Werner Koch <wk@g10code.com>
* fipsdrv.c (run_rsa_sign): Buffer needs to be larger for SHA512.
2008-10-27 Werner Koch <wk@g10code.com>
* fipsdrv.c (run_encrypt_decrypt): Make IV_BUFFER optional.
(main): Ditto.
* cavs_driver.pl: Remove the --no-fips flags.
(libgcrypt_encdec($$$$$)): Make IV optional.
(libgcrypt_state_cipher($$$$$)): Ditto.
2008-10-24 Werner Koch <wk@g10code.com>
* benchmark.c (md_bench): Do not test MD5 in fips mode.
* basic.c (check_digests, check_hmac): Ditto.
2008-10-06 Werner Koch <wk@g10code.com>
* cavs_driver.pl: New version from upstream.
(libgcrypt_rsa_verify($$$$)): Pass pkcs1.
(libgcrypt_rsa_sign($$$)): Pass pkcs1 and hash algo.
* fipsdrv.c (run_rsa_sign): Hash data in pkcs1 mode.
(run_rsa_verify): Ditto.
(read_key_file): Rename to read_private_key_file. Factor public
key code out to..
(read_public_key_file): .. new.
2008-10-02 Werner Koch <wk@g10code.com>
* fipsdrv.c (print_buffer): Add base64 printing code.
(base64_decode, read_key_file, parse_tag, read_sig_file): New.
(run_rsa_gen, run_rsa_sign): New.
(main): Add modes rsa-gen, rsa-sign and rsa-verify.
2008-09-29 Werner Koch <wk@g10code.com>
* fipsdrv.c: Merge code from fipsrngdrv.c
* fipsrngdrv.c: Remove.
2008-09-26 Werner Koch <wk@g10code.com>
* Makefile.am: Distribute cavs_driver.pl.
* cavs_tests.sh: New.
* fipsdrv.c: New.
2008-09-18 Werner Koch <wk@g10code.com>
* benchmark.c (main): Do not disable secure memory in FIPS mode.
2008-09-18 Werner Koch <wk@g10code.com>
* basic.c (main): Do not disable secure memory in FIPS mode.
2008-09-16 Werner Koch <wk@g10code.com>
* fipsrngdrv.c (main): Bail out on write error. Implement verbose
option.
(main): Use flag to disable dup block checks.
2008-09-15 Werner Koch <wk@g10code.com>
* fipsrngdrv.c: New.
2008-09-09 Werner Koch <wk@g10code.com>
* basic.c (main): New option --selftest.
2008-08-29 Werner Koch <wk@g10code.com>
* keygrip.c: Update to also check ECDSA.
2008-08-28 Werner Koch <wk@g10code.com>
* rsa-16k.key: New sample key.
2008-08-27 Werner Koch <wk@g10code.com>
* pkbench.c (read_file): New.
(process_key_pair_file): Replace mmap by read_file.
(main): Add a --fips option.
* Makefile.am (EXTRA_DIST): Remove.
(EXTRA_PROGRAMS): Add pkbench.
* basic.c (main): Extended FIPS self-test test.
2008-08-26 Werner Koch <wk@g10code.com>
* basic.c (get_keys_new): Use transient-key flag.
* benchmark.c (main): First check options then do the libgcrypt
initialization.
(rsa_bench): Use transient-key flag if not in fips mode.
2008-08-20 Werner Koch <wk@g10code.com>
* t-mpi-bit.c (test_lshift): New.
(mpi2bitstr_nlz, lshiftbitstring): New.
(main): Run test.
2008-08-18 Werner Koch <wk@g10code.com>
* basic.c (main): Add option --fips.
2008-08-15 Werner Koch <wk@g10code.com>
* register.c (main): Check for fips mode.
(check_run): Take care of fips mode.
* basic.c (check_cbc_mac_cipher, check_ciphers, check_digests)
(check_hmac, check_pubkey): Do not test unavalaible algorithms in
fips mode.
(main): Check for fips mode.
2008-04-22 Werner Koch <wk@g10code.com>
* basic.c (check_one_cipher): Also check in-place encryption.
2008-03-17 Werner Koch <wk@g10code.com>
* benchmark.c (main): Add option --cipher-repetition.
(cipher_bench): Use it.
2008-03-12 Werner Koch <wk@g10code.com>
* benchmark.c (rsa_bench): Add arg NO_BLINDING.
(main): Add option --no-blinding.
2007-12-05 Werner Koch <wk@g10code.com>
* pubkey.c (sample_private_key_1_1,sample_private_key_1_2): New.
(get_keys_sample): Add arg SECRET_VARIANT.
(check_run): Check all variants. Also check gcry_pk_testkey.
(check_keys_crypt): Add DECRYPT_FAIL_CODE.
(check_keys): Ditto.
2007-11-30 Werner Koch <wk@g10code.com>
* benchmark.c (main): Add optione --verbose and reworked the
option parsing.
(random_bench): Dump random stats.
2007-10-31 Werner Koch <wk@g10code.com>
* benchmark.c (start_timer, stop_timer, elapsed_time) [W32]: Fixed.
2007-06-20 Werner Koch <wk@g10code.com>
* benchmark.c (rsa_bench): New.
(main): New command "rsa".
2007-05-03 Werner Koch <wk@g10code.com>
* Makefile.am (EXTRA_DIST): Do not build pkbench.c
2007-05-02 David Shaw <dshaw@jabberwocky.com>
* basic.c (check_ciphers): Add Camellia.
2007-04-30 David Shaw <dshaw@jabberwocky.com>
* basic.c (check_ciphers): #if out ciphers we don't have. Add
test for GCRY_CIPHER_RFC2268_40.
2007-04-30 Werner Koch <wk@g10code.com>
* version.c: New.
* Makefile.am (TESTS): Add version.
2007-04-30 Marcus Brinkmann <marcus@g10code.de>
* benchmark.c (ecc_bench): Release KEY_SPEC.
2007-04-28 Marcus Brinkmann <marcus@g10code.de>
* ac-data.c (check_run): Don't give redundant GCRY_AC_FLAG_DEALLOC
in addition to GCRY_AC_FLAG_COPY. Don't release LABEL1 or MPI0,
as those are donated to libgcrypt, but do release MPI0 and MPI2.
2007-04-12 Marcus Brinkmann <marcus@g10code.de>
* ac-schemes.c (scheme_spec): Revert last change.
* ac-schemes.c (scheme_spec): Remove const qualifier from member M.
(es_check): Remove const qualifier from C and M2.
2007-03-28 Werner Koch <wk@g10code.com>
* pkbench.c (generate_key): Support named curves.
* benchmark.c (dsa_bench): New args ITERATIONS and PRINT_HEADER.
(main): Call dsa and ecc benchs.
(show_sexp): New.
* Makefile.am (TESTS): Move pkbench to EXTRA_PROGRAMS.
2007-03-22 Werner Koch <wk@g10code.com>
* benchmark.c (die): New.
(ecc_bench): New.
* pkbench.c (main): Reworked to provide proper option handling.
2007-03-13 Werner Koch <wk@g10code.com>
* mpitests.c: Reformatted to GNU standards.
(main): Add options --verbose and --debug for future use.
2007-03-13 Werner Dittmann <Werner.Dittmann@t-online.de> (wk)
* mpitests.c: New.
2007-02-23 Werner Koch <wk@g10code.com>
* Makefile.am (TEST): Run benchmark as last.
* ac-data.c (check_sexp_conversion): Print label only in verbose
mode.
* pubkey.c (main): Run test just 2 times instead of 10.
(get_elg_key_new): New.
(check_run): Also run tests with Elgamal keys.
(check_keys): New arg NBITS_DATA.
(get_elg_key_new): Use only 400 for the 512 bit Elgamal test.
* random.c: New.
2007-02-22 Werner Koch <wk@g10code.com>
* basic.c (check_pubkey_sign): Also try signing using an OID.
* Makefile.am (TESTS) [W32]: Removed pkbench for now.
* pkbench.c (benchmark): Fixed for W32.
2007-02-21 Werner Koch <wk@g10code.com>
* hmac.c (check_one_mac): Make pointer args const.
* basic.c (check_one_md): Ditto.
(check_one_hmac): Ditto.
* keygen.c (progress_cb): Filter out line feeds.
* basic.c (progress_handler): Ditto.
2006-12-18 Werner Koch <wk@g10code.com>
* Makefile.am (AM_CFLAGS, AM_CPPFLAGS): Splitted and merged with
Moritz' changes.
(INCLUDES): Removed.
* keygen.c (progress_handler): New.
(main): Use it in verbose mode.
2006-11-05 Moritz Schulte <moritz@g10code.com>
* Makefile.am (AM_CFLAGS): Added -I$(top_builddir)/src so that the
new gcrypt.h is used, not the one installed in the system.
2006-10-17 Werner Koch <wk@g10code.com>
* keygen.c (check_rsa_keys): Also create an 1536 bit DSA key.
2006-08-03 Werner Koch <wk@g10code.com>
* t-mpi-bit.c: New.
2006-07-06 Werner Koch <wk@g10code.com>
* benchmark.c (main): New option --use-random-daemon. New command
strongrandom.
(random_bench): New arg VERY_STRONG.
2006-03-14 Werner Koch <wk@g10code.com>
* benchmark.c (main): Allow for seed file argument to random bench.
* basic.c (main): Use progress handler only in verbose mode.
(main): Speed up test key generation.
* ac-data.c (check_sexp_conversion, check_run): Take care of VERBOSE.
* ac.c (main): Ditto.
* pubkey.c (main): Ditto.
* pkbench.c (main): Ditto.
* keygen.c (main): Ditto.
(check_rsa_keys): Print key only in verbose mode.
2006-03-10 Brad Hards <bradh@frogmouth.net> (wk, patch 2006-02-18)
* basic.c (check_one_hmac, check_hmac): New.
2006-03-07 Werner Koch <wk@g10code.com>
* benchmark.c (cipher_bench): Add OFB mode.
2006-01-18 Brad Hards <bradh@frogmouth.net> (wk 2006-03-07)
* basic.c: Added test cases for OFB and CFB modes. Fixed some
compiler warnings for signedness.
2005-11-12 Moritz Schulte <moritz@g10code.com>
* ac-data.c: Added way more test cases.
2005-09-15 Moritz Schulte <moritz@g10code.com>
* Makefile.am (TESTS): Added keygrip.
* keygrip.c: New.
2005-09-19 Werner Koch <wk@g10code.com>
* benchmark.c (dsa_bench): New.
2005-08-19 Werner Koch <wk@g10code.com>
* hmac.c (main): Added all FIPS tests.
2005-08-18 Werner Koch <wk@g10code.com>
* hmac.c: New.
2005-04-22 Moritz Schulte <moritz@g10code.com>
* tsexp.c: Include <config.h> in case HAVE_CONFIG_H is defined;
thanks to Albert Chin.
* testapi.c: Likewise.
* register.c: Likewise.
* pubkey.c: Likewise.
* prime.c: Likewise.
* pkbench.c: Likewise.
* keygen.c: Likewise.
* benchmark.c: Likewise.
* basic.c: Likewise.
* ac-schemes.c: Likewise.
* ac-data.c: Likewise.
* ac.c: Likewise.
2005-04-16 Moritz Schulte <moritz@g10code.com>
* ac-data.c (check_run): Include new test.
2005-04-11 Moritz Schulte <moritz@g10code.com>
* basic.c (check_digests): Add tests for Whirlpool.
2005-03-30 Moritz Schulte <moritz@g10code.com>
* ac-schemes.c: New file.
* ac-data.c: New file.
* Makefile.am (TESTS): Added ac-schemes and ac-data.
2004-09-15 Moritz Schulte <moritz@g10code.com>
* pkbench.c: Include <time.h>.
2004-08-24 Moritz Schulte <moritz@g10code.com>
* pkbench.c (context_init): Improve generation of test data.
2004-08-23 Moritz Schulte <moritz@g10code.com>
* Makefile.am (TESTS): Added: pkbench.
* pkbench.c: New file.
2004-02-25 Werner Koch <wk@gnupg.org>
* Makefile.am (TEST): Add benchmark.
* benchmark.c (md_bench, cipher_bench): Allow NULL arg to to run
tests for all algorithms.
(main): Run all tests by default.
2004-02-03 Werner Koch <wk@gnupg.org>
* tsexp.c (basic): New pass to check secure memory switching.
2004-01-12 Moritz Schulte <mo@g10code.com>
* ac.c (check_one): Adjust to new ac API.
2003-11-22 Werner Koch <wk@gnupg.org>
* pubkey.c (check_keys_crypt): Fixed my last patch.
2003-11-11 Werner Koch <wk@gnupg.org>
* tsexp.c (basic): Add pass structure and a test for the %b
format.
2003-11-04 Werner Koch <wk@gnupg.org>
* Makefile.am (noinst_PROGRAMS): Use this so that test programs
get always build.
* keygen.c (check_nonce): New.
(main): Add a basic check for the nocen function.
2003-10-31 Werner Koch <wk@gnupg.org>
* basic.c (check_aes128_cbc_cts_cipher): Make it a prototype
* ac.c (check_run): Comment unused variable.
2003-10-10 Werner Koch <wk@gnupg.org>
* prime.c (check_primes): Generate a generator and avoid printing
unless in verbose mode.
2003-10-07 Werner Koch <wk@gnupg.org>
* tsexp.c (check_sscan): New.
2003-09-04 Werner Koch <wk@gnupg.org>
* pubkey.c (check_keys_crypt): Fix for compatibility mode.
2003-09-02 Moritz Schulte <mo@g10code.com>
* Makefile.am (TESTS): Added: prime.
* prime.c: New file.
2003-08-27 Moritz Schulte <mo@g10code.com>
* basic.c (check_ciphers): Added: Serpent.
Write braces around flags.
2003-08-04 Moritz Schulte <moritz@g10code.com>
* benchmark.c (do_powm): Adjust for new gcry_mpi_scan interface.
2003-07-23 Moritz Schulte <moritz@g10code.com>
* ac.c (key_copy): New function...
(check_one): ... use it.
2003-07-22 Moritz Schulte <moritz@g10code.com>
* basic.c (check_ciphers): Use gcry_cipher_map_name.
2003-07-18 Moritz Schulte <moritz@g10code.com>
* ac.c (check_run): Renamed to ...
(check_one): ... this, changed calling interface.
(check_run): New function.
* register.c: Adjust gcry_cipher_spec_t structure.
2003-07-14 Moritz Schulte <moritz@g10code.com>
* register.c: Adjust cipher specification structure.
* benchmark.c: New file.
* testapi.c: New file.
* Makefile.am (EXTRA_PROGRAMS): Set to: benchmark testapi.
(check_PROGRAMS): Set to: $(TESTS).
2003-07-12 Moritz Schulte <moritz@g10code.com>
* ac.c, basic.c, keygen.c, register.c, sexp.c, tsexp.c: Used
gcry_err* wrappers for libgpg symbols.
* basic.c (check_ciphers): Added: GCRY_CIPHER_TWOFISH128.
2003-07-08 Moritz Schulte <moritz@g10code.com>
* Makefile.am (LIBS): Remove: -lpthread.
* basic.c (check_one_cipher): Fix variable initialization. Thanks
to Simon Joseffson <jas@extundo.com>.
2003-07-07 Moritz Schulte <moritz@g10code.com>
* Makefile.am (TESTS): Added: register.
2003-07-05 Moritz Schulte <moritz@g10code.com>
* register.c (check_run): Adjusted for new gcry_cipher_register API.
2003-07-02 Moritz Schulte <moritz@g10code.com>
* Makefile.am (TESTS): Added: ac.
* ac.c: New file.
2003-06-18 Werner Koch <wk@gnupg.org>
* basic.c (check_cbc_mac_cipher): Adjusted for new API of get_blklen
and get_keylen.
(check_ctr_cipher): Ditto.
(check_one_cipher): Ditto.
(check_one_md): Adjusted for new API of gcry_md_copy.
2003-06-18 Moritz Schulte <moritz@g10code.com>
* register.c: Replace old type GcryModule with newer one:
gcry_module_t.
Adjusted for new API.
* Makefile.am (AM_CFLAGS): Added: @GPG_ERROR_CFLAGS@.
2003-06-15 Moritz Schulte <moritz@g10code.com>
* basic.c (get_keys_new): New function.
(do_check_one_pubkey): New function ...
(check_one_pubkey): ... use it.
(progress_handler): New function.
(main): Use gcry_set_progress_handler.
2003-06-14 Moritz Schulte <moritz@g10code.com>
* basic.c: Replaced calls to gcry_strerror with calls to
gpg_strerror.
(check_one_md): Adjust for new gcry_md_copy API.
* tsexp.c: Likewise.
* keygen.c: Likewise.
2003-06-12 Moritz Schulte <moritz@g10code.com>
* basic.c: Changed here and there, reorganized pubkey checks,
added DSA and ELG keys.
2003-06-09 Moritz Schulte <moritz@g10code.com>
* basic.c, keygen.c, pubkey.c, register.c, tsexp.c: Changed to use
new API.
2003-06-01 Moritz Schulte <moritz@g10code.com>
* tsexp.c (canon_len): Adjust for new gcry_sexp_canon_len API.
2003-05-26 Moritz Schulte <moritz@g10code.com>
* basic.c (verify_one_signature): Adjust for libgpg-error.
(check_pubkey_sign): Likewise.
(check_pubkey): Likewise.
* basic.c (check_pubkey_sign): Likewise.
* tsexp.c (canon_len): Likewise.
(back_and_forth_one): Likewise.
2003-04-27 Moritz Schulte <moritz@g10code.com>
* pubkey.c: Changed the sample private key to contain the
identifier `openpgp-rsa' instead of `rsa'.
* basic.c (check_digests): Enabled/fixed some tests for TIGER.
2003-04-17 Moritz Schulte <moritz@g10code.com>
* Makefile.am (TESTS): Removed `register' for now.
2003-04-17 Moritz Schulte <moritz@g10code.com>
* basic.c (check_digests): Include checks for SHA512 and SHA384.
2003-04-16 Moritz Schulte <moritz@g10code.com>
* basic.c (check_one_md): Also test md_copy.
2003-04-07 Moritz Schulte <moritz@g10code.com>
* Makefile.am (TESTS): Added register.
* register.c: New file.
2003-03-30 Simon Josefsson <jas@extundo.com>
* basic.c (check_one_cipher): New. Test CTR.
(main): Call it.
(check_ciphers): Check CTR mode.
2003-03-26 Moritz Schulte <moritz@g10code.com>
* Makefile.am (TESTS): Added pubkey.
* pubkey.c: New file.
2003-03-22 Simon Josefsson <jas@extundo.com>
* basic.c (check_cbc_mac_cipher): New.
(main): Use it.
2003-03-19 Werner Koch <wk@gnupg.org>
* keygen.c (check_rsa_keys): Don't expect an exponent when asking
for e=0.
(check_generated_rsa_key): Just print exponent if EXPECTED_E is 0.
2003-03-02 Moritz Schulte <moritz@g10code.com>
* basic.c (check_one_cipher): Use gcry_cipher_reset() instead of
gcry_cipher_close(), gcry_cipher_open and gcry_cipher_setkey().
2003-01-23 Werner Koch <wk@gnupg.org>
* keygen.c: New.
2003-01-20 Simon Josefsson <jas@extundo.com>
* basic.c (check_digests): Add CRC.
(check_one_md): Print computed and expected values on error.
2003-01-20 Werner Koch <wk@gnupg.org>
* basic.c (check_one_md): Kludge to check a one million "a".
(check_digests): Add checks for SHA-256.
2003-01-20 Werner Koch <wk@gnupg.org>
* basic.c (check_pubkey): Check the keygrip for the sample key.
2003-01-15 Werner Koch <wk@gnupg.org>
* basic.c (verify_one_signature,check_pubkey_sign)
(check_pubkey): New.
(main): Check public key functions. Add a --debug option.
2002-11-23 Werner Koch <wk@gnupg.org>
* basic.c (check_digests): Add another test for MD4. By Simon
Josefsson.
2002-11-10 Simon Josefsson <jas@extundo.com>
* basic.c (check_aes128_cbc_cts_cipher): New function.
(check_one_cipher): Add flags parameter.
(check_ciphers): Support flags parameter.
(main): Check CTS.
2002-11-10 Werner Koch <wk@gnupg.org>
* basic.c (check_one_md): New. By Simon Josefsson.
(check_digests): New tests for MD4. By Simon.
2002-08-26 Werner Koch <wk@gnupg.org>
* basic.c (check_ciphers): Check simple DES.
2002-05-16 Werner Koch <wk@gnupg.org>
* tsexp.c (back_and_forth): Very minimal test of the new functions.
2002-05-14 Werner Koch <wk@gnupg.org>
Changed license of all files to the LGPL.
2002-05-02 Werner Koch <wk@gnupg.org>
* basic.c: Add option --verbose.
2002-01-11 Werner Koch <wk@gnupg.org>
* tsexp.c (canon_len): Fixed tests.
2001-12-18 Werner Koch <wk@gnupg.org>
* tsexp.c: New.
Copyright 2001, 2002, 2003, 2008 Free Software Foundation, Inc.
This file is free software; as a special exception the author gives
unlimited permission to copy and/or distribute it, with or without
modifications, as long as this notice is preserved.
This file is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
diff --git a/tests/basic.c b/tests/basic.c
index 2cd6d9f8..d60297d0 100644
--- a/tests/basic.c
+++ b/tests/basic.c
@@ -1,2257 +1,2325 @@
/* basic.c - basic regression tests
* Copyright (C) 2001, 2002, 2003, 2005, 2008,
* 2009 Free Software Foundation, Inc.
*
* This file is part of Libgcrypt.
*
* Libgcrypt is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* Libgcrypt is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include "../src/gcrypt.h"
typedef struct test_spec_pubkey_key
{
const char *secret;
const char *public;
const char *grip;
}
test_spec_pubkey_key_t;
typedef struct test_spec_pubkey
{
int id;
int flags;
test_spec_pubkey_key_t key;
}
test_spec_pubkey_t;
#define FLAG_CRYPT (1 << 0)
#define FLAG_SIGN (1 << 1)
#define FLAG_GRIP (1 << 2)
static int verbose;
static int error_count;
static int in_fips_mode;
static void
fail (const char *format, ...)
{
va_list arg_ptr;
va_start (arg_ptr, format);
vfprintf (stderr, format, arg_ptr);
va_end (arg_ptr);
error_count++;
}
static void
die (const char *format, ...)
{
va_list arg_ptr;
va_start (arg_ptr, format);
vfprintf (stderr, format, arg_ptr);
va_end (arg_ptr);
exit (1);
}
#define MAX_DATA_LEN 100
void
progress_handler (void *cb_data, const char *what, int printchar,
int current, int total)
{
(void)cb_data;
(void)what;
(void)current;
(void)total;
if (printchar == '\n')
fputs ( "<LF>", stdout);
else
putchar (printchar);
fflush (stdout);
}
static void
check_cbc_mac_cipher (void)
{
struct tv
{
int algo;
char key[MAX_DATA_LEN];
unsigned char plaintext[MAX_DATA_LEN];
size_t plaintextlen;
char mac[MAX_DATA_LEN];
}
tv[] =
{
{ GCRY_CIPHER_AES,
"chicken teriyaki",
"This is a sample plaintext for CBC MAC of sixtyfour bytes.......",
0, "\x23\x8f\x6d\xc7\x53\x6a\x62\x97\x11\xc4\xa5\x16\x43\xea\xb0\xb6" },
{ GCRY_CIPHER_3DES,
"abcdefghABCDEFGH01234567",
"This is a sample plaintext for CBC MAC of sixtyfour bytes.......",
0, "\x5c\x11\xf0\x01\x47\xbd\x3d\x3a" },
{ GCRY_CIPHER_DES,
"abcdefgh",
"This is a sample plaintext for CBC MAC of sixtyfour bytes.......",
0, "\xfa\x4b\xdf\x9d\xfa\xab\x01\x70" }
};
gcry_cipher_hd_t hd;
unsigned char out[MAX_DATA_LEN];
int i, blklen, keylen;
gcry_error_t err = 0;
if (verbose)
fprintf (stderr, "Starting CBC MAC checks.\n");
for (i = 0; i < sizeof (tv) / sizeof (tv[0]); i++)
{
if (gcry_cipher_test_algo (tv[i].algo) && in_fips_mode)
{
if (verbose)
fprintf (stderr, " algorithm %d not available in fips mode\n",
tv[i].algo);
continue;
}
err = gcry_cipher_open (&hd,
tv[i].algo,
GCRY_CIPHER_MODE_CBC, GCRY_CIPHER_CBC_MAC);
if (!hd)
{
fail ("cbc-mac algo %d, grcy_open_cipher failed: %s\n",
tv[i].algo, gpg_strerror (err));
return;
}
blklen = gcry_cipher_get_algo_blklen(tv[i].algo);
if (!blklen)
{
fail ("cbc-mac algo %d, gcry_cipher_get_algo_blklen failed\n",
tv[i].algo);
gcry_cipher_close (hd);
return;
}
keylen = gcry_cipher_get_algo_keylen (tv[i].algo);
if (!keylen)
{
fail ("cbc-mac algo %d, gcry_cipher_get_algo_keylen failed\n",
tv[i].algo);
return;
}
err = gcry_cipher_setkey (hd, tv[i].key, keylen);
if (err)
{
fail ("cbc-mac algo %d, gcry_cipher_setkey failed: %s\n",
tv[i].algo, gpg_strerror (err));
gcry_cipher_close (hd);
return;
}
err = gcry_cipher_setiv (hd, NULL, 0);
if (err)
{
fail ("cbc-mac algo %d, gcry_cipher_setiv failed: %s\n",
tv[i].algo, gpg_strerror (err));
gcry_cipher_close (hd);
return;
}
if (verbose)
fprintf (stderr, " checking CBC MAC for %s [%i]\n",
gcry_cipher_algo_name (tv[i].algo),
tv[i].algo);
err = gcry_cipher_encrypt (hd,
out, blklen,
tv[i].plaintext,
tv[i].plaintextlen ?
tv[i].plaintextlen :
strlen ((char*)tv[i].plaintext));
if (err)
{
fail ("cbc-mac algo %d, gcry_cipher_encrypt failed: %s\n",
tv[i].algo, gpg_strerror (err));
gcry_cipher_close (hd);
return;
}
#if 0
{
int j;
for (j = 0; j < gcry_cipher_get_algo_blklen (tv[i].algo); j++)
printf ("\\x%02x", out[j] & 0xFF);
printf ("\n");
}
#endif
if (memcmp (tv[i].mac, out, blklen))
fail ("cbc-mac algo %d, encrypt mismatch entry %d\n", tv[i].algo, i);
gcry_cipher_close (hd);
}
if (verbose)
fprintf (stderr, "Completed CBC MAC checks.\n");
}
static void
check_aes128_cbc_cts_cipher (void)
{
char key[128 / 8] = "chicken teriyaki";
unsigned char plaintext[] =
"I would like the General Gau's Chicken, please, and wonton soup.";
struct tv
{
unsigned char out[MAX_DATA_LEN];
int inlen;
} tv[] =
{
{ "\xc6\x35\x35\x68\xf2\xbf\x8c\xb4\xd8\xa5\x80\x36\x2d\xa7\xff\x7f"
"\x97",
17 },
{ "\xfc\x00\x78\x3e\x0e\xfd\xb2\xc1\xd4\x45\xd4\xc8\xef\xf7\xed\x22"
"\x97\x68\x72\x68\xd6\xec\xcc\xc0\xc0\x7b\x25\xe2\x5e\xcf\xe5",
31 },
{ "\x39\x31\x25\x23\xa7\x86\x62\xd5\xbe\x7f\xcb\xcc\x98\xeb\xf5\xa8"
"\x97\x68\x72\x68\xd6\xec\xcc\xc0\xc0\x7b\x25\xe2\x5e\xcf\xe5\x84",
32 },
{ "\x97\x68\x72\x68\xd6\xec\xcc\xc0\xc0\x7b\x25\xe2\x5e\xcf\xe5\x84"
"\xb3\xff\xfd\x94\x0c\x16\xa1\x8c\x1b\x55\x49\xd2\xf8\x38\x02\x9e"
"\x39\x31\x25\x23\xa7\x86\x62\xd5\xbe\x7f\xcb\xcc\x98\xeb\xf5",
47 },
{ "\x97\x68\x72\x68\xd6\xec\xcc\xc0\xc0\x7b\x25\xe2\x5e\xcf\xe5\x84"
"\x9d\xad\x8b\xbb\x96\xc4\xcd\xc0\x3b\xc1\x03\xe1\xa1\x94\xbb\xd8"
"\x39\x31\x25\x23\xa7\x86\x62\xd5\xbe\x7f\xcb\xcc\x98\xeb\xf5\xa8",
48 },
{ "\x97\x68\x72\x68\xd6\xec\xcc\xc0\xc0\x7b\x25\xe2\x5e\xcf\xe5\x84"
"\x39\x31\x25\x23\xa7\x86\x62\xd5\xbe\x7f\xcb\xcc\x98\xeb\xf5\xa8"
"\x48\x07\xef\xe8\x36\xee\x89\xa5\x26\x73\x0d\xbc\x2f\x7b\xc8\x40"
"\x9d\xad\x8b\xbb\x96\xc4\xcd\xc0\x3b\xc1\x03\xe1\xa1\x94\xbb\xd8",
64 },
};
gcry_cipher_hd_t hd;
unsigned char out[MAX_DATA_LEN];
int i;
gcry_error_t err = 0;
if (verbose)
fprintf (stderr, "Starting AES128 CBC CTS checks.\n");
err = gcry_cipher_open (&hd,
GCRY_CIPHER_AES,
GCRY_CIPHER_MODE_CBC, GCRY_CIPHER_CBC_CTS);
if (err)
{
fail ("aes-cbc-cts, grcy_open_cipher failed: %s\n", gpg_strerror (err));
return;
}
err = gcry_cipher_setkey (hd, key, 128 / 8);
if (err)
{
fail ("aes-cbc-cts, gcry_cipher_setkey failed: %s\n",
gpg_strerror (err));
gcry_cipher_close (hd);
return;
}
for (i = 0; i < sizeof (tv) / sizeof (tv[0]); i++)
{
err = gcry_cipher_setiv (hd, NULL, 0);
if (err)
{
fail ("aes-cbc-cts, gcry_cipher_setiv failed: %s\n",
gpg_strerror (err));
gcry_cipher_close (hd);
return;
}
if (verbose)
fprintf (stderr, " checking encryption for length %i\n", tv[i].inlen);
err = gcry_cipher_encrypt (hd, out, MAX_DATA_LEN,
plaintext, tv[i].inlen);
if (err)
{
fail ("aes-cbc-cts, gcry_cipher_encrypt failed: %s\n",
gpg_strerror (err));
gcry_cipher_close (hd);
return;
}
if (memcmp (tv[i].out, out, tv[i].inlen))
fail ("aes-cbc-cts, encrypt mismatch entry %d\n", i);
err = gcry_cipher_setiv (hd, NULL, 0);
if (err)
{
fail ("aes-cbc-cts, gcry_cipher_setiv failed: %s\n",
gpg_strerror (err));
gcry_cipher_close (hd);
return;
}
if (verbose)
fprintf (stderr, " checking decryption for length %i\n", tv[i].inlen);
err = gcry_cipher_decrypt (hd, out, tv[i].inlen, NULL, 0);
if (err)
{
fail ("aes-cbc-cts, gcry_cipher_decrypt failed: %s\n",
gpg_strerror (err));
gcry_cipher_close (hd);
return;
}
if (memcmp (plaintext, out, tv[i].inlen))
fail ("aes-cbc-cts, decrypt mismatch entry %d\n", i);
}
gcry_cipher_close (hd);
if (verbose)
fprintf (stderr, "Completed AES128 CBC CTS checks.\n");
}
static void
check_ctr_cipher (void)
{
struct tv
{
int algo;
char key[MAX_DATA_LEN];
char ctr[MAX_DATA_LEN];
struct data
{
unsigned char plaintext[MAX_DATA_LEN];
int inlen;
char out[MAX_DATA_LEN];
}
data[MAX_DATA_LEN];
} tv[] =
{
/* http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf */
{ GCRY_CIPHER_AES,
"\x2b\x7e\x15\x16\x28\xae\xd2\xa6\xab\xf7\x15\x88\x09\xcf\x4f\x3c",
"\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff",
{ { "\x6b\xc1\xbe\xe2\x2e\x40\x9f\x96\xe9\x3d\x7e\x11\x73\x93\x17\x2a",
16,
"\x87\x4d\x61\x91\xb6\x20\xe3\x26\x1b\xef\x68\x64\x99\x0d\xb6\xce" },
{ "\xae\x2d\x8a\x57\x1e\x03\xac\x9c\x9e\xb7\x6f\xac\x45\xaf\x8e\x51",
16,
"\x98\x06\xf6\x6b\x79\x70\xfd\xff\x86\x17\x18\x7b\xb9\xff\xfd\xff" },
{ "\x30\xc8\x1c\x46\xa3\x5c\xe4\x11\xe5\xfb\xc1\x19\x1a\x0a\x52\xef",
16,
"\x5a\xe4\xdf\x3e\xdb\xd5\xd3\x5e\x5b\x4f\x09\x02\x0d\xb0\x3e\xab" },
{ "\xf6\x9f\x24\x45\xdf\x4f\x9b\x17\xad\x2b\x41\x7b\xe6\x6c\x37\x10",
16,
"\x1e\x03\x1d\xda\x2f\xbe\x03\xd1\x79\x21\x70\xa0\xf3\x00\x9c\xee" },
}
},
{ GCRY_CIPHER_AES192,
"\x8e\x73\xb0\xf7\xda\x0e\x64\x52\xc8\x10\xf3\x2b"
"\x80\x90\x79\xe5\x62\xf8\xea\xd2\x52\x2c\x6b\x7b",
"\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff",
{ { "\x6b\xc1\xbe\xe2\x2e\x40\x9f\x96\xe9\x3d\x7e\x11\x73\x93\x17\x2a",
16,
"\x1a\xbc\x93\x24\x17\x52\x1c\xa2\x4f\x2b\x04\x59\xfe\x7e\x6e\x0b" },
{ "\xae\x2d\x8a\x57\x1e\x03\xac\x9c\x9e\xb7\x6f\xac\x45\xaf\x8e\x51",
16,
"\x09\x03\x39\xec\x0a\xa6\xfa\xef\xd5\xcc\xc2\xc6\xf4\xce\x8e\x94" },
{ "\x30\xc8\x1c\x46\xa3\x5c\xe4\x11\xe5\xfb\xc1\x19\x1a\x0a\x52\xef",
16,
"\x1e\x36\xb2\x6b\xd1\xeb\xc6\x70\xd1\xbd\x1d\x66\x56\x20\xab\xf7" },
{ "\xf6\x9f\x24\x45\xdf\x4f\x9b\x17\xad\x2b\x41\x7b\xe6\x6c\x37\x10",
16,
"\x4f\x78\xa7\xf6\xd2\x98\x09\x58\x5a\x97\xda\xec\x58\xc6\xb0\x50" },
}
},
{ GCRY_CIPHER_AES256,
"\x60\x3d\xeb\x10\x15\xca\x71\xbe\x2b\x73\xae\xf0\x85\x7d\x77\x81"
"\x1f\x35\x2c\x07\x3b\x61\x08\xd7\x2d\x98\x10\xa3\x09\x14\xdf\xf4",
"\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff",
{ { "\x6b\xc1\xbe\xe2\x2e\x40\x9f\x96\xe9\x3d\x7e\x11\x73\x93\x17\x2a",
16,
"\x60\x1e\xc3\x13\x77\x57\x89\xa5\xb7\xa7\xf5\x04\xbb\xf3\xd2\x28" },
{ "\xae\x2d\x8a\x57\x1e\x03\xac\x9c\x9e\xb7\x6f\xac\x45\xaf\x8e\x51",
16,
"\xf4\x43\xe3\xca\x4d\x62\xb5\x9a\xca\x84\xe9\x90\xca\xca\xf5\xc5" },
{ "\x30\xc8\x1c\x46\xa3\x5c\xe4\x11\xe5\xfb\xc1\x19\x1a\x0a\x52\xef",
16,
"\x2b\x09\x30\xda\xa2\x3d\xe9\x4c\xe8\x70\x17\xba\x2d\x84\x98\x8d" },
{ "\xf6\x9f\x24\x45\xdf\x4f\x9b\x17\xad\x2b\x41\x7b\xe6\x6c\x37\x10",
16,
"\xdf\xc9\xc5\x8d\xb6\x7a\xad\xa6\x13\xc2\xdd\x08\x45\x79\x41\xa6" }
}
}
};
gcry_cipher_hd_t hde, hdd;
unsigned char out[MAX_DATA_LEN];
int i, j, keylen, blklen;
gcry_error_t err = 0;
if (verbose)
fprintf (stderr, "Starting CTR cipher checks.\n");
for (i = 0; i < sizeof (tv) / sizeof (tv[0]); i++)
{
err = gcry_cipher_open (&hde, tv[i].algo, GCRY_CIPHER_MODE_CTR, 0);
if (!err)
err = gcry_cipher_open (&hdd, tv[i].algo, GCRY_CIPHER_MODE_CTR, 0);
if (err)
{
fail ("aes-ctr, grcy_open_cipher failed: %s\n", gpg_strerror (err));
return;
}
keylen = gcry_cipher_get_algo_keylen(tv[i].algo);
if (!keylen)
{
fail ("aes-ctr, gcry_cipher_get_algo_keylen failed\n");
return;
}
err = gcry_cipher_setkey (hde, tv[i].key, keylen);
if (!err)
err = gcry_cipher_setkey (hdd, tv[i].key, keylen);
if (err)
{
fail ("aes-ctr, gcry_cipher_setkey failed: %s\n",
gpg_strerror (err));
gcry_cipher_close (hde);
gcry_cipher_close (hdd);
return;
}
blklen = gcry_cipher_get_algo_blklen(tv[i].algo);
if (!blklen)
{
fail ("aes-ctr, gcry_cipher_get_algo_blklen failed\n");
return;
}
err = gcry_cipher_setctr (hde, tv[i].ctr, blklen);
if (!err)
err = gcry_cipher_setctr (hdd, tv[i].ctr, blklen);
if (err)
{
fail ("aes-ctr, gcry_cipher_setctr failed: %s\n",
gpg_strerror (err));
gcry_cipher_close (hde);
gcry_cipher_close (hdd);
return;
}
if (verbose)
fprintf (stderr, " checking CTR mode for %s [%i]\n",
gcry_cipher_algo_name (tv[i].algo),
tv[i].algo);
for (j = 0; tv[i].data[j].inlen; j++)
{
err = gcry_cipher_encrypt (hde, out, MAX_DATA_LEN,
tv[i].data[j].plaintext,
tv[i].data[j].inlen == -1 ?
strlen ((char*)tv[i].data[j].plaintext) :
tv[i].data[j].inlen);
if (err)
{
fail ("aes-ctr, gcry_cipher_encrypt (%d, %d) failed: %s\n",
i, j, gpg_strerror (err));
gcry_cipher_close (hde);
gcry_cipher_close (hdd);
return;
}
if (memcmp (tv[i].data[j].out, out, tv[i].data[j].inlen))
fail ("aes-ctr, encrypt mismatch entry %d:%d\n", i, j);
err = gcry_cipher_decrypt (hdd, out, tv[i].data[j].inlen, NULL, 0);
if (err)
{
fail ("aes-ctr, gcry_cipher_decrypt (%d, %d) failed: %s\n",
i, j, gpg_strerror (err));
gcry_cipher_close (hde);
gcry_cipher_close (hdd);
return;
}
if (memcmp (tv[i].data[j].plaintext, out, tv[i].data[j].inlen))
fail ("aes-ctr, decrypt mismatch entry %d:%d\n", i, j);
}
/* Now check that we get valid return codes back for good and
bad inputs. */
err = gcry_cipher_encrypt (hde, out, MAX_DATA_LEN,
"1234567890123456", 16);
if (err)
fail ("aes-ctr, encryption failed for valid input");
err = gcry_cipher_encrypt (hde, out, MAX_DATA_LEN,
"1234567890123456", 15);
if (gpg_err_code (err) != GPG_ERR_INV_LENGTH)
fail ("aes-ctr, too short input returned wrong error: %s\n",
gpg_strerror (err));
err = gcry_cipher_encrypt (hde, out, MAX_DATA_LEN,
"12345678901234567", 17);
if (gpg_err_code (err) != GPG_ERR_INV_LENGTH)
fail ("aes-ctr, too long input returned wrong error: %s\n",
gpg_strerror (err));
err = gcry_cipher_encrypt (hde, out, 15,
"1234567890123456", 16);
if (gpg_err_code (err) != GPG_ERR_BUFFER_TOO_SHORT)
fail ("aes-ctr, too short output buffer returned wrong error: %s\n",
gpg_strerror (err));
err = gcry_cipher_encrypt (hde, out, 0,
"1234567890123456", 16);
if (gpg_err_code (err) != GPG_ERR_BUFFER_TOO_SHORT)
fail ("aes-ctr, 0 length output buffer returned wrong error: %s\n",
gpg_strerror (err));
err = gcry_cipher_encrypt (hde, out, 16,
"1234567890123456", 16);
if (err)
fail ("aes-ctr, correct length output buffer returned error: %s\n",
gpg_strerror (err));
/* Again, now for decryption. */
err = gcry_cipher_decrypt (hde, out, MAX_DATA_LEN,
"1234567890123456", 16);
if (err)
fail ("aes-ctr, decryption failed for valid input");
err = gcry_cipher_decrypt (hde, out, MAX_DATA_LEN,
"1234567890123456", 15);
if (gpg_err_code (err) != GPG_ERR_INV_LENGTH)
fail ("aes-ctr, too short input returned wrong error: %s\n",
gpg_strerror (err));
err = gcry_cipher_decrypt (hde, out, MAX_DATA_LEN,
"12345678901234567", 17);
if (gpg_err_code (err) != GPG_ERR_INV_LENGTH)
fail ("aes-ctr, too long input returned wrong error: %s\n",
gpg_strerror (err));
err = gcry_cipher_decrypt (hde, out, 15,
"1234567890123456", 16);
if (gpg_err_code (err) != GPG_ERR_BUFFER_TOO_SHORT)
fail ("aes-ctr, too short output buffer returned wrong error: %s\n",
gpg_strerror (err));
err = gcry_cipher_decrypt (hde, out, 0,
"1234567890123456", 16);
if (gpg_err_code (err) != GPG_ERR_BUFFER_TOO_SHORT)
fail ("aes-ctr, 0 length output buffer returned wrong error: %s\n",
gpg_strerror (err));
err = gcry_cipher_decrypt (hde, out, 16,
"1234567890123456", 16);
if (err)
fail ("aes-ctr, correct length output buffer returned error: %s\n",
gpg_strerror (err));
gcry_cipher_close (hde);
gcry_cipher_close (hdd);
}
if (verbose)
fprintf (stderr, "Completed CTR cipher checks.\n");
}
static void
check_cfb_cipher (void)
{
struct tv
{
int algo;
char key[MAX_DATA_LEN];
char iv[MAX_DATA_LEN];
struct data
{
unsigned char plaintext[MAX_DATA_LEN];
int inlen;
char out[MAX_DATA_LEN];
}
data[MAX_DATA_LEN];
} tv[] =
{
/* http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf */
{ GCRY_CIPHER_AES,
"\x2b\x7e\x15\x16\x28\xae\xd2\xa6\xab\xf7\x15\x88\x09\xcf\x4f\x3c",
"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
{ { "\x6b\xc1\xbe\xe2\x2e\x40\x9f\x96\xe9\x3d\x7e\x11\x73\x93\x17\x2a",
16,
"\x3b\x3f\xd9\x2e\xb7\x2d\xad\x20\x33\x34\x49\xf8\xe8\x3c\xfb\x4a" },
{ "\xae\x2d\x8a\x57\x1e\x03\xac\x9c\x9e\xb7\x6f\xac\x45\xaf\x8e\x51",
16,
"\xc8\xa6\x45\x37\xa0\xb3\xa9\x3f\xcd\xe3\xcd\xad\x9f\x1c\xe5\x8b"},
{ "\x30\xc8\x1c\x46\xa3\x5c\xe4\x11\xe5\xfb\xc1\x19\x1a\x0a\x52\xef",
16,
"\x26\x75\x1f\x67\xa3\xcb\xb1\x40\xb1\x80\x8c\xf1\x87\xa4\xf4\xdf" },
{ "\xf6\x9f\x24\x45\xdf\x4f\x9b\x17\xad\x2b\x41\x7b\xe6\x6c\x37\x10",
16,
"\xc0\x4b\x05\x35\x7c\x5d\x1c\x0e\xea\xc4\xc6\x6f\x9f\xf7\xf2\xe6" },
}
},
{ GCRY_CIPHER_AES192,
"\x8e\x73\xb0\xf7\xda\x0e\x64\x52\xc8\x10\xf3\x2b"
"\x80\x90\x79\xe5\x62\xf8\xea\xd2\x52\x2c\x6b\x7b",
"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
{ { "\x6b\xc1\xbe\xe2\x2e\x40\x9f\x96\xe9\x3d\x7e\x11\x73\x93\x17\x2a",
16,
"\xcd\xc8\x0d\x6f\xdd\xf1\x8c\xab\x34\xc2\x59\x09\xc9\x9a\x41\x74" },
{ "\xae\x2d\x8a\x57\x1e\x03\xac\x9c\x9e\xb7\x6f\xac\x45\xaf\x8e\x51",
16,
"\x67\xce\x7f\x7f\x81\x17\x36\x21\x96\x1a\x2b\x70\x17\x1d\x3d\x7a" },
{ "\x30\xc8\x1c\x46\xa3\x5c\xe4\x11\xe5\xfb\xc1\x19\x1a\x0a\x52\xef",
16,
"\x2e\x1e\x8a\x1d\xd5\x9b\x88\xb1\xc8\xe6\x0f\xed\x1e\xfa\xc4\xc9" },
{ "\xf6\x9f\x24\x45\xdf\x4f\x9b\x17\xad\x2b\x41\x7b\xe6\x6c\x37\x10",
16,
"\xc0\x5f\x9f\x9c\xa9\x83\x4f\xa0\x42\xae\x8f\xba\x58\x4b\x09\xff" },
}
},
{ GCRY_CIPHER_AES256,
"\x60\x3d\xeb\x10\x15\xca\x71\xbe\x2b\x73\xae\xf0\x85\x7d\x77\x81"
"\x1f\x35\x2c\x07\x3b\x61\x08\xd7\x2d\x98\x10\xa3\x09\x14\xdf\xf4",
"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
{ { "\x6b\xc1\xbe\xe2\x2e\x40\x9f\x96\xe9\x3d\x7e\x11\x73\x93\x17\x2a",
16,
"\xdc\x7e\x84\xbf\xda\x79\x16\x4b\x7e\xcd\x84\x86\x98\x5d\x38\x60" },
{ "\xae\x2d\x8a\x57\x1e\x03\xac\x9c\x9e\xb7\x6f\xac\x45\xaf\x8e\x51",
16,
"\x39\xff\xed\x14\x3b\x28\xb1\xc8\x32\x11\x3c\x63\x31\xe5\x40\x7b" },
{ "\x30\xc8\x1c\x46\xa3\x5c\xe4\x11\xe5\xfb\xc1\x19\x1a\x0a\x52\xef",
16,
"\xdf\x10\x13\x24\x15\xe5\x4b\x92\xa1\x3e\xd0\xa8\x26\x7a\xe2\xf9" },
{ "\xf6\x9f\x24\x45\xdf\x4f\x9b\x17\xad\x2b\x41\x7b\xe6\x6c\x37\x10",
16,
"\x75\xa3\x85\x74\x1a\xb9\xce\xf8\x20\x31\x62\x3d\x55\xb1\xe4\x71" }
}
}
};
gcry_cipher_hd_t hde, hdd;
unsigned char out[MAX_DATA_LEN];
int i, j, keylen, blklen;
gcry_error_t err = 0;
for (i = 0; i < sizeof (tv) / sizeof (tv[0]); i++)
{
err = gcry_cipher_open (&hde, tv[i].algo, GCRY_CIPHER_MODE_CFB, 0);
if (!err)
err = gcry_cipher_open (&hdd, tv[i].algo, GCRY_CIPHER_MODE_CFB, 0);
if (err)
{
fail ("aes-cfb, grcy_open_cipher failed: %s\n", gpg_strerror (err));
return;
}
keylen = gcry_cipher_get_algo_keylen(tv[i].algo);
if (!keylen)
{
fail ("aes-cfb, gcry_cipher_get_algo_keylen failed\n");
return;
}
err = gcry_cipher_setkey (hde, tv[i].key, keylen);
if (!err)
err = gcry_cipher_setkey (hdd, tv[i].key, keylen);
if (err)
{
fail ("aes-cfb, gcry_cipher_setkey failed: %s\n",
gpg_strerror (err));
gcry_cipher_close (hde);
gcry_cipher_close (hdd);
return;
}
blklen = gcry_cipher_get_algo_blklen(tv[i].algo);
if (!blklen)
{
fail ("aes-cfb, gcry_cipher_get_algo_blklen failed\n");
return;
}
err = gcry_cipher_setiv (hde, tv[i].iv, blklen);
if (!err)
err = gcry_cipher_setiv (hdd, tv[i].iv, blklen);
if (err)
{
fail ("aes-cfb, gcry_cipher_setiv failed: %s\n",
gpg_strerror (err));
gcry_cipher_close (hde);
gcry_cipher_close (hdd);
return;
}
for (j = 0; tv[i].data[j].inlen; j++)
{
err = gcry_cipher_encrypt (hde, out, MAX_DATA_LEN,
tv[i].data[j].plaintext,
tv[i].data[j].inlen);
if (err)
{
fail ("aes-cfb, gcry_cipher_encrypt (%d, %d) failed: %s\n",
i, j, gpg_strerror (err));
gcry_cipher_close (hde);
gcry_cipher_close (hdd);
return;
}
if (memcmp (tv[i].data[j].out, out, tv[i].data[j].inlen)) {
fail ("aes-cfb, encrypt mismatch entry %d:%d\n", i, j);
}
err = gcry_cipher_decrypt (hdd, out, tv[i].data[j].inlen, NULL, 0);
if (err)
{
fail ("aes-cfb, gcry_cipher_decrypt (%d, %d) failed: %s\n",
i, j, gpg_strerror (err));
gcry_cipher_close (hde);
gcry_cipher_close (hdd);
return;
}
if (memcmp (tv[i].data[j].plaintext, out, tv[i].data[j].inlen))
fail ("aes-cfb, decrypt mismatch entry %d:%d\n", i, j);
}
gcry_cipher_close (hde);
gcry_cipher_close (hdd);
}
}
static void
check_ofb_cipher (void)
{
struct tv
{
int algo;
char key[MAX_DATA_LEN];
char iv[MAX_DATA_LEN];
struct data
{
unsigned char plaintext[MAX_DATA_LEN];
int inlen;
char out[MAX_DATA_LEN];
}
data[MAX_DATA_LEN];
} tv[] =
{
/* http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf */
{ GCRY_CIPHER_AES,
"\x2b\x7e\x15\x16\x28\xae\xd2\xa6\xab\xf7\x15\x88\x09\xcf\x4f\x3c",
"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
{ { "\x6b\xc1\xbe\xe2\x2e\x40\x9f\x96\xe9\x3d\x7e\x11\x73\x93\x17\x2a",
16,
"\x3b\x3f\xd9\x2e\xb7\x2d\xad\x20\x33\x34\x49\xf8\xe8\x3c\xfb\x4a" },
{ "\xae\x2d\x8a\x57\x1e\x03\xac\x9c\x9e\xb7\x6f\xac\x45\xaf\x8e\x51",
16,
"\x77\x89\x50\x8d\x16\x91\x8f\x03\xf5\x3c\x52\xda\xc5\x4e\xd8\x25"},
{ "\x30\xc8\x1c\x46\xa3\x5c\xe4\x11\xe5\xfb\xc1\x19\x1a\x0a\x52\xef",
16,
"\x97\x40\x05\x1e\x9c\x5f\xec\xf6\x43\x44\xf7\xa8\x22\x60\xed\xcc" },
{ "\xf6\x9f\x24\x45\xdf\x4f\x9b\x17\xad\x2b\x41\x7b\xe6\x6c\x37\x10",
16,
"\x30\x4c\x65\x28\xf6\x59\xc7\x78\x66\xa5\x10\xd9\xc1\xd6\xae\x5e" },
}
},
{ GCRY_CIPHER_AES192,
"\x8e\x73\xb0\xf7\xda\x0e\x64\x52\xc8\x10\xf3\x2b"
"\x80\x90\x79\xe5\x62\xf8\xea\xd2\x52\x2c\x6b\x7b",
"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
{ { "\x6b\xc1\xbe\xe2\x2e\x40\x9f\x96\xe9\x3d\x7e\x11\x73\x93\x17\x2a",
16,
"\xcd\xc8\x0d\x6f\xdd\xf1\x8c\xab\x34\xc2\x59\x09\xc9\x9a\x41\x74" },
{ "\xae\x2d\x8a\x57\x1e\x03\xac\x9c\x9e\xb7\x6f\xac\x45\xaf\x8e\x51",
16,
"\xfc\xc2\x8b\x8d\x4c\x63\x83\x7c\x09\xe8\x17\x00\xc1\x10\x04\x01" },
{ "\x30\xc8\x1c\x46\xa3\x5c\xe4\x11\xe5\xfb\xc1\x19\x1a\x0a\x52\xef",
16,
"\x8d\x9a\x9a\xea\xc0\xf6\x59\x6f\x55\x9c\x6d\x4d\xaf\x59\xa5\xf2" },
{ "\xf6\x9f\x24\x45\xdf\x4f\x9b\x17\xad\x2b\x41\x7b\xe6\x6c\x37\x10",
16,
"\x6d\x9f\x20\x08\x57\xca\x6c\x3e\x9c\xac\x52\x4b\xd9\xac\xc9\x2a" },
}
},
{ GCRY_CIPHER_AES256,
"\x60\x3d\xeb\x10\x15\xca\x71\xbe\x2b\x73\xae\xf0\x85\x7d\x77\x81"
"\x1f\x35\x2c\x07\x3b\x61\x08\xd7\x2d\x98\x10\xa3\x09\x14\xdf\xf4",
"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
{ { "\x6b\xc1\xbe\xe2\x2e\x40\x9f\x96\xe9\x3d\x7e\x11\x73\x93\x17\x2a",
16,
"\xdc\x7e\x84\xbf\xda\x79\x16\x4b\x7e\xcd\x84\x86\x98\x5d\x38\x60" },
{ "\xae\x2d\x8a\x57\x1e\x03\xac\x9c\x9e\xb7\x6f\xac\x45\xaf\x8e\x51",
16,
"\x4f\xeb\xdc\x67\x40\xd2\x0b\x3a\xc8\x8f\x6a\xd8\x2a\x4f\xb0\x8d" },
{ "\x30\xc8\x1c\x46\xa3\x5c\xe4\x11\xe5\xfb\xc1\x19\x1a\x0a\x52\xef",
16,
"\x71\xab\x47\xa0\x86\xe8\x6e\xed\xf3\x9d\x1c\x5b\xba\x97\xc4\x08" },
{ "\xf6\x9f\x24\x45\xdf\x4f\x9b\x17\xad\x2b\x41\x7b\xe6\x6c\x37\x10",
16,
"\x01\x26\x14\x1d\x67\xf3\x7b\xe8\x53\x8f\x5a\x8b\xe7\x40\xe4\x84" }
}
}
};
gcry_cipher_hd_t hde, hdd;
unsigned char out[MAX_DATA_LEN];
int i, j, keylen, blklen;
gcry_error_t err = 0;
for (i = 0; i < sizeof (tv) / sizeof (tv[0]); i++)
{
err = gcry_cipher_open (&hde, tv[i].algo, GCRY_CIPHER_MODE_OFB, 0);
if (!err)
err = gcry_cipher_open (&hdd, tv[i].algo, GCRY_CIPHER_MODE_OFB, 0);
if (err)
{
fail ("aes-ofb, grcy_open_cipher failed: %s\n", gpg_strerror (err));
return;
}
keylen = gcry_cipher_get_algo_keylen(tv[i].algo);
if (!keylen)
{
fail ("aes-ofb, gcry_cipher_get_algo_keylen failed\n");
return;
}
err = gcry_cipher_setkey (hde, tv[i].key, keylen);
if (!err)
err = gcry_cipher_setkey (hdd, tv[i].key, keylen);
if (err)
{
fail ("aes-ofb, gcry_cipher_setkey failed: %s\n",
gpg_strerror (err));
gcry_cipher_close (hde);
gcry_cipher_close (hdd);
return;
}
blklen = gcry_cipher_get_algo_blklen(tv[i].algo);
if (!blklen)
{
fail ("aes-ofb, gcry_cipher_get_algo_blklen failed\n");
return;
}
err = gcry_cipher_setiv (hde, tv[i].iv, blklen);
if (!err)
err = gcry_cipher_setiv (hdd, tv[i].iv, blklen);
if (err)
{
fail ("aes-ofb, gcry_cipher_setiv failed: %s\n",
gpg_strerror (err));
gcry_cipher_close (hde);
gcry_cipher_close (hdd);
return;
}
for (j = 0; tv[i].data[j].inlen; j++)
{
err = gcry_cipher_encrypt (hde, out, MAX_DATA_LEN,
tv[i].data[j].plaintext,
tv[i].data[j].inlen);
if (err)
{
fail ("aes-ofb, gcry_cipher_encrypt (%d, %d) failed: %s\n",
i, j, gpg_strerror (err));
gcry_cipher_close (hde);
gcry_cipher_close (hdd);
return;
}
if (memcmp (tv[i].data[j].out, out, tv[i].data[j].inlen))
fail ("aes-ofb, encrypt mismatch entry %d:%d\n", i, j);
err = gcry_cipher_decrypt (hdd, out, tv[i].data[j].inlen, NULL, 0);
if (err)
{
fail ("aes-ofb, gcry_cipher_decrypt (%d, %d) failed: %s\n",
i, j, gpg_strerror (err));
gcry_cipher_close (hde);
gcry_cipher_close (hdd);
return;
}
if (memcmp (tv[i].data[j].plaintext, out, tv[i].data[j].inlen))
fail ("aes-ofb, decrypt mismatch entry %d:%d\n", i, j);
}
err = gcry_cipher_reset(hde);
if (!err)
err = gcry_cipher_reset(hdd);
if (err)
{
fail ("aes-ofb, gcry_cipher_reset (%d, %d) failed: %s\n",
i, j, gpg_strerror (err));
gcry_cipher_close (hde);
gcry_cipher_close (hdd);
return;
}
/* gcry_cipher_reset clears the IV */
err = gcry_cipher_setiv (hde, tv[i].iv, blklen);
if (!err)
err = gcry_cipher_setiv (hdd, tv[i].iv, blklen);
if (err)
{
fail ("aes-ofb, gcry_cipher_setiv failed: %s\n",
gpg_strerror (err));
gcry_cipher_close (hde);
gcry_cipher_close (hdd);
return;
}
/* this time we encrypt and decrypt one byte at a time */
for (j = 0; tv[i].data[j].inlen; j++)
{
int byteNum;
for (byteNum = 0; byteNum < tv[i].data[j].inlen; ++byteNum)
{
err = gcry_cipher_encrypt (hde, out+byteNum, 1,
(tv[i].data[j].plaintext) + byteNum,
1);
if (err)
{
fail ("aes-ofb, gcry_cipher_encrypt (%d, %d) failed: %s\n",
i, j, gpg_strerror (err));
gcry_cipher_close (hde);
gcry_cipher_close (hdd);
return;
}
}
if (memcmp (tv[i].data[j].out, out, tv[i].data[j].inlen))
fail ("aes-ofb, encrypt mismatch entry %d:%d\n", i, j);
for (byteNum = 0; byteNum < tv[i].data[j].inlen; ++byteNum)
{
err = gcry_cipher_decrypt (hdd, out+byteNum, 1, NULL, 0);
if (err)
{
fail ("aes-ofb, gcry_cipher_decrypt (%d, %d) failed: %s\n",
i, j, gpg_strerror (err));
gcry_cipher_close (hde);
gcry_cipher_close (hdd);
return;
}
}
if (memcmp (tv[i].data[j].plaintext, out, tv[i].data[j].inlen))
fail ("aes-ofb, decrypt mismatch entry %d:%d\n", i, j);
}
gcry_cipher_close (hde);
gcry_cipher_close (hdd);
}
}
static void
check_one_cipher (int algo, int mode, int flags)
{
gcry_cipher_hd_t hd;
char key[32];
unsigned char plain[16], in[16], out[16];
int keylen;
gcry_error_t err = 0;
memcpy (key, "0123456789abcdef.,;/[]{}-=ABCDEF", 32);
memcpy (plain, "foobar42FOOBAR17", 16);
keylen = gcry_cipher_get_algo_keylen (algo);
if (!keylen)
{
fail ("algo %d, mode %d, gcry_cipher_get_algo_keylen failed\n",
algo, mode);
return;
}
if (keylen < 40 / 8 || keylen > 32)
{
fail ("algo %d, mode %d, keylength problem (%d)\n", algo, mode, keylen);
return;
}
err = gcry_cipher_open (&hd, algo, mode, flags);
if (err)
{
fail ("algo %d, mode %d, grcy_open_cipher failed: %s\n",
algo, mode, gpg_strerror (err));
return;
}
err = gcry_cipher_setkey (hd, key, keylen);
if (err)
{
fail ("algo %d, mode %d, gcry_cipher_setkey failed: %s\n",
algo, mode, gpg_strerror (err));
gcry_cipher_close (hd);
return;
}
err = gcry_cipher_encrypt (hd, out, 16, plain, 16);
if (err)
{
fail ("algo %d, mode %d, gcry_cipher_encrypt failed: %s\n",
algo, mode, gpg_strerror (err));
gcry_cipher_close (hd);
return;
}
gcry_cipher_reset (hd);
err = gcry_cipher_decrypt (hd, in, 16, out, 16);
if (err)
{
fail ("algo %d, mode %d, gcry_cipher_decrypt failed: %s\n",
algo, mode, gpg_strerror (err));
gcry_cipher_close (hd);
return;
}
if (memcmp (plain, in, 16))
fail ("algo %d, mode %d, encrypt-decrypt mismatch\n", algo, mode);
/* Again, using in-place encryption. */
gcry_cipher_reset (hd);
memcpy (out, plain, 16);
err = gcry_cipher_encrypt (hd, out, 16, NULL, 0);
if (err)
{
fail ("algo %d, mode %d, in-place, gcry_cipher_encrypt failed: %s\n",
algo, mode, gpg_strerror (err));
gcry_cipher_close (hd);
return;
}
gcry_cipher_reset (hd);
err = gcry_cipher_decrypt (hd, out, 16, NULL, 0);
if (err)
{
fail ("algo %d, mode %d, in-place, gcry_cipher_decrypt failed: %s\n",
algo, mode, gpg_strerror (err));
gcry_cipher_close (hd);
return;
}
if (memcmp (plain, out, 16))
fail ("algo %d, mode %d, in-place, encrypt-decrypt mismatch\n",algo, mode);
gcry_cipher_close (hd);
}
static void
check_ciphers (void)
{
static int algos[] = {
#if USE_BLOWFISH
GCRY_CIPHER_BLOWFISH,
#endif
#if USE_DES
GCRY_CIPHER_DES,
GCRY_CIPHER_3DES,
#endif
#if USE_CAST5
GCRY_CIPHER_CAST5,
#endif
#if USE_AES
GCRY_CIPHER_AES,
GCRY_CIPHER_AES192,
GCRY_CIPHER_AES256,
#endif
#if USE_TWOFISH
GCRY_CIPHER_TWOFISH,
GCRY_CIPHER_TWOFISH128,
#endif
#if USE_SERPENT
GCRY_CIPHER_SERPENT128,
GCRY_CIPHER_SERPENT192,
GCRY_CIPHER_SERPENT256,
#endif
#if USE_RFC2268
GCRY_CIPHER_RFC2268_40,
#endif
#if USE_SEED
GCRY_CIPHER_SEED,
#endif
#if USE_CAMELLIA
GCRY_CIPHER_CAMELLIA128,
GCRY_CIPHER_CAMELLIA192,
GCRY_CIPHER_CAMELLIA256,
#endif
0
};
static int algos2[] = {
#if USE_ARCFOUR
GCRY_CIPHER_ARCFOUR,
#endif
0
};
int i;
if (verbose)
fprintf (stderr, "Starting Cipher checks.\n");
for (i = 0; algos[i]; i++)
{
if (gcry_cipher_test_algo (algos[i]) && in_fips_mode)
{
if (verbose)
fprintf (stderr, " algorithm %d not available in fips mode\n",
algos[i]);
continue;
}
if (verbose)
fprintf (stderr, " checking %s [%i]\n",
gcry_cipher_algo_name (algos[i]),
gcry_cipher_map_name (gcry_cipher_algo_name (algos[i])));
check_one_cipher (algos[i], GCRY_CIPHER_MODE_ECB, 0);
check_one_cipher (algos[i], GCRY_CIPHER_MODE_CFB, 0);
check_one_cipher (algos[i], GCRY_CIPHER_MODE_OFB, 0);
check_one_cipher (algos[i], GCRY_CIPHER_MODE_CBC, 0);
check_one_cipher (algos[i], GCRY_CIPHER_MODE_CBC, GCRY_CIPHER_CBC_CTS);
check_one_cipher (algos[i], GCRY_CIPHER_MODE_CTR, 0);
}
for (i = 0; algos2[i]; i++)
{
if (gcry_cipher_test_algo (algos[i]) && in_fips_mode)
{
if (verbose)
fprintf (stderr, " algorithm %d not available in fips mode\n",
algos[i]);
continue;
}
if (verbose)
fprintf (stderr, " checking `%s'\n",
gcry_cipher_algo_name (algos2[i]));
check_one_cipher (algos2[i], GCRY_CIPHER_MODE_STREAM, 0);
}
/* we have now run all cipher's selftests */
if (verbose)
fprintf (stderr, "Completed Cipher checks.\n");
/* TODO: add some extra encryption to test the higher level functions */
}
static void
check_one_md (int algo, const char *data, int len, const char *expect)
{
gcry_md_hd_t hd, hd2;
unsigned char *p;
int mdlen;
int i;
gcry_error_t err = 0;
err = gcry_md_open (&hd, algo, 0);
if (err)
{
fail ("algo %d, grcy_md_open failed: %s\n", algo, gpg_strerror (err));
return;
}
mdlen = gcry_md_get_algo_dlen (algo);
if (mdlen < 1 || mdlen > 500)
{
fail ("algo %d, grcy_md_get_algo_dlen failed: %d\n", algo, mdlen);
return;
}
if (*data == '!' && !data[1])
{ /* hash one million times a "a" */
char aaa[1000];
/* Write in odd size chunks so that we test the buffering. */
memset (aaa, 'a', 1000);
for (i = 0; i < 1000; i++)
gcry_md_write (hd, aaa, 1000);
}
else
gcry_md_write (hd, data, len);
err = gcry_md_copy (&hd2, hd);
if (err)
{
fail ("algo %d, gcry_md_copy failed: %s\n", algo, gpg_strerror (err));
}
gcry_md_close (hd);
p = gcry_md_read (hd2, algo);
if (memcmp (p, expect, mdlen))
{
printf ("computed: ");
for (i = 0; i < mdlen; i++)
printf ("%02x ", p[i] & 0xFF);
printf ("\nexpected: ");
for (i = 0; i < mdlen; i++)
printf ("%02x ", expect[i] & 0xFF);
printf ("\n");
fail ("algo %d, digest mismatch\n", algo);
}
gcry_md_close (hd2);
}
static void
check_digests (void)
{
static struct algos
{
int md;
const char *data;
const char *expect;
} algos[] =
{
{ GCRY_MD_MD4, "",
"\x31\xD6\xCF\xE0\xD1\x6A\xE9\x31\xB7\x3C\x59\xD7\xE0\xC0\x89\xC0" },
{ GCRY_MD_MD4, "a",
"\xbd\xe5\x2c\xb3\x1d\xe3\x3e\x46\x24\x5e\x05\xfb\xdb\xd6\xfb\x24" },
{ GCRY_MD_MD4, "message digest",
"\xd9\x13\x0a\x81\x64\x54\x9f\xe8\x18\x87\x48\x06\xe1\xc7\x01\x4b" },
{ GCRY_MD_MD5, "",
"\xD4\x1D\x8C\xD9\x8F\x00\xB2\x04\xE9\x80\x09\x98\xEC\xF8\x42\x7E" },
{ GCRY_MD_MD5, "a",
"\x0C\xC1\x75\xB9\xC0\xF1\xB6\xA8\x31\xC3\x99\xE2\x69\x77\x26\x61" },
{ GCRY_MD_MD5, "abc",
"\x90\x01\x50\x98\x3C\xD2\x4F\xB0\xD6\x96\x3F\x7D\x28\xE1\x7F\x72" },
{ GCRY_MD_MD5, "message digest",
"\xF9\x6B\x69\x7D\x7C\xB7\x93\x8D\x52\x5A\x2F\x31\xAA\xF1\x61\xD0" },
{ GCRY_MD_SHA1, "abc",
"\xA9\x99\x3E\x36\x47\x06\x81\x6A\xBA\x3E"
"\x25\x71\x78\x50\xC2\x6C\x9C\xD0\xD8\x9D" },
{ GCRY_MD_SHA1,
"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
"\x84\x98\x3E\x44\x1C\x3B\xD2\x6E\xBA\xAE"
"\x4A\xA1\xF9\x51\x29\xE5\xE5\x46\x70\xF1" },
{ GCRY_MD_SHA1, "!" /* kludge for "a"*1000000 */ ,
"\x34\xAA\x97\x3C\xD4\xC4\xDA\xA4\xF6\x1E"
"\xEB\x2B\xDB\xAD\x27\x31\x65\x34\x01\x6F" },
/* From RFC3874 */
{ GCRY_MD_SHA224, "abc",
"\x23\x09\x7d\x22\x34\x05\xd8\x22\x86\x42\xa4\x77\xbd\xa2\x55\xb3"
"\x2a\xad\xbc\xe4\xbd\xa0\xb3\xf7\xe3\x6c\x9d\xa7" },
{ GCRY_MD_SHA224,
"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
"\x75\x38\x8b\x16\x51\x27\x76\xcc\x5d\xba\x5d\xa1\xfd\x89\x01\x50"
"\xb0\xc6\x45\x5c\xb4\xf5\x8b\x19\x52\x52\x25\x25" },
{ GCRY_MD_SHA224, "!",
"\x20\x79\x46\x55\x98\x0c\x91\xd8\xbb\xb4\xc1\xea\x97\x61\x8a\x4b"
"\xf0\x3f\x42\x58\x19\x48\xb2\xee\x4e\xe7\xad\x67" },
{ GCRY_MD_SHA256, "abc",
"\xba\x78\x16\xbf\x8f\x01\xcf\xea\x41\x41\x40\xde\x5d\xae\x22\x23"
"\xb0\x03\x61\xa3\x96\x17\x7a\x9c\xb4\x10\xff\x61\xf2\x00\x15\xad" },
{ GCRY_MD_SHA256,
"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
"\x24\x8d\x6a\x61\xd2\x06\x38\xb8\xe5\xc0\x26\x93\x0c\x3e\x60\x39"
"\xa3\x3c\xe4\x59\x64\xff\x21\x67\xf6\xec\xed\xd4\x19\xdb\x06\xc1" },
{ GCRY_MD_SHA256, "!",
"\xcd\xc7\x6e\x5c\x99\x14\xfb\x92\x81\xa1\xc7\xe2\x84\xd7\x3e\x67"
"\xf1\x80\x9a\x48\xa4\x97\x20\x0e\x04\x6d\x39\xcc\xc7\x11\x2c\xd0" },
{ GCRY_MD_SHA384, "abc",
"\xcb\x00\x75\x3f\x45\xa3\x5e\x8b\xb5\xa0\x3d\x69\x9a\xc6\x50\x07"
"\x27\x2c\x32\xab\x0e\xde\xd1\x63\x1a\x8b\x60\x5a\x43\xff\x5b\xed"
"\x80\x86\x07\x2b\xa1\xe7\xcc\x23\x58\xba\xec\xa1\x34\xc8\x25\xa7" },
{ GCRY_MD_SHA512, "abc",
"\xDD\xAF\x35\xA1\x93\x61\x7A\xBA\xCC\x41\x73\x49\xAE\x20\x41\x31"
"\x12\xE6\xFA\x4E\x89\xA9\x7E\xA2\x0A\x9E\xEE\xE6\x4B\x55\xD3\x9A"
"\x21\x92\x99\x2A\x27\x4F\xC1\xA8\x36\xBA\x3C\x23\xA3\xFE\xEB\xBD"
"\x45\x4D\x44\x23\x64\x3C\xE8\x0E\x2A\x9A\xC9\x4F\xA5\x4C\xA4\x9F" },
{ GCRY_MD_RMD160, "",
"\x9c\x11\x85\xa5\xc5\xe9\xfc\x54\x61\x28"
"\x08\x97\x7e\xe8\xf5\x48\xb2\x25\x8d\x31" },
{ GCRY_MD_RMD160, "a",
"\x0b\xdc\x9d\x2d\x25\x6b\x3e\xe9\xda\xae"
"\x34\x7b\xe6\xf4\xdc\x83\x5a\x46\x7f\xfe" },
{ GCRY_MD_RMD160, "abc",
"\x8e\xb2\x08\xf7\xe0\x5d\x98\x7a\x9b\x04"
"\x4a\x8e\x98\xc6\xb0\x87\xf1\x5a\x0b\xfc" },
{ GCRY_MD_RMD160, "message digest",
"\x5d\x06\x89\xef\x49\xd2\xfa\xe5\x72\xb8"
"\x81\xb1\x23\xa8\x5f\xfa\x21\x59\x5f\x36" },
{ GCRY_MD_CRC32, "", "\x00\x00\x00\x00" },
{ GCRY_MD_CRC32, "foo", "\x8c\x73\x65\x21" },
{ GCRY_MD_CRC32_RFC1510, "", "\x00\x00\x00\x00" },
{ GCRY_MD_CRC32_RFC1510, "foo", "\x73\x32\xbc\x33" },
{ GCRY_MD_CRC32_RFC1510, "test0123456789", "\xb8\x3e\x88\xd6" },
{ GCRY_MD_CRC32_RFC1510, "MASSACHVSETTS INSTITVTE OF TECHNOLOGY",
"\xe3\x41\x80\xf7" },
#if 0
{ GCRY_MD_CRC32_RFC1510, "\x80\x00", "\x3b\x83\x98\x4b" },
{ GCRY_MD_CRC32_RFC1510, "\x00\x08", "\x0e\xdb\x88\x32" },
{ GCRY_MD_CRC32_RFC1510, "\x00\x80", "\xed\xb8\x83\x20" },
#endif
{ GCRY_MD_CRC32_RFC1510, "\x80", "\xed\xb8\x83\x20" },
#if 0
{ GCRY_MD_CRC32_RFC1510, "\x80\x00\x00\x00", "\xed\x59\xb6\x3b" },
{ GCRY_MD_CRC32_RFC1510, "\x00\x00\x00\x01", "\x77\x07\x30\x96" },
#endif
{ GCRY_MD_CRC24_RFC2440, "", "\xb7\x04\xce" },
{ GCRY_MD_CRC24_RFC2440, "foo", "\x4f\xc2\x55" },
+
{ GCRY_MD_TIGER, "",
"\x24\xF0\x13\x0C\x63\xAC\x93\x32\x16\x16\x6E\x76"
"\xB1\xBB\x92\x5F\xF3\x73\xDE\x2D\x49\x58\x4E\x7A" },
{ GCRY_MD_TIGER, "abc",
"\xF2\x58\xC1\xE8\x84\x14\xAB\x2A\x52\x7A\xB5\x41"
"\xFF\xC5\xB8\xBF\x93\x5F\x7B\x95\x1C\x13\x29\x51" },
{ GCRY_MD_TIGER, "Tiger",
"\x9F\x00\xF5\x99\x07\x23\x00\xDD\x27\x6A\xBB\x38"
"\xC8\xEB\x6D\xEC\x37\x79\x0C\x11\x6F\x9D\x2B\xDF" },
{ GCRY_MD_TIGER, "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefg"
"hijklmnopqrstuvwxyz0123456789+-",
"\x87\xFB\x2A\x90\x83\x85\x1C\xF7\x47\x0D\x2C\xF8"
"\x10\xE6\xDF\x9E\xB5\x86\x44\x50\x34\xA5\xA3\x86" },
{ GCRY_MD_TIGER, "ABCDEFGHIJKLMNOPQRSTUVWXYZ=abcdef"
"ghijklmnopqrstuvwxyz+0123456789",
"\x46\x7D\xB8\x08\x63\xEB\xCE\x48\x8D\xF1\xCD\x12"
"\x61\x65\x5D\xE9\x57\x89\x65\x65\x97\x5F\x91\x97" },
{ GCRY_MD_TIGER, "Tiger - A Fast New Hash Function, "
"by Ross Anderson and Eli Biham",
"\x0C\x41\x0A\x04\x29\x68\x86\x8A\x16\x71\xDA\x5A"
"\x3F\xD2\x9A\x72\x5E\xC1\xE4\x57\xD3\xCD\xB3\x03" },
{ GCRY_MD_TIGER, "Tiger - A Fast New Hash Function, "
"by Ross Anderson and Eli Biham, proceedings of Fa"
"st Software Encryption 3, Cambridge.",
"\xEB\xF5\x91\xD5\xAF\xA6\x55\xCE\x7F\x22\x89\x4F"
"\xF8\x7F\x54\xAC\x89\xC8\x11\xB6\xB0\xDA\x31\x93" },
{ GCRY_MD_TIGER, "Tiger - A Fast New Hash Function, "
"by Ross Anderson and Eli Biham, proceedings of Fa"
"st Software Encryption 3, Cambridge, 1996.",
"\x3D\x9A\xEB\x03\xD1\xBD\x1A\x63\x57\xB2\x77\x4D"
"\xFD\x6D\x5B\x24\xDD\x68\x15\x1D\x50\x39\x74\xFC" },
{ GCRY_MD_TIGER, "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefgh"
"ijklmnopqrstuvwxyz0123456789+-ABCDEFGHIJKLMNOPQRS"
"TUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+-",
"\x00\xB8\x3E\xB4\xE5\x34\x40\xC5\x76\xAC\x6A\xAE"
"\xE0\xA7\x48\x58\x25\xFD\x15\xE7\x0A\x59\xFF\xE4" },
+
+ { GCRY_MD_TIGER1, "",
+ "\x32\x93\xAC\x63\x0C\x13\xF0\x24\x5F\x92\xBB\xB1"
+ "\x76\x6E\x16\x16\x7A\x4E\x58\x49\x2D\xDE\x73\xF3" },
+ { GCRY_MD_TIGER1, "a",
+ "\x77\xBE\xFB\xEF\x2E\x7E\xF8\xAB\x2E\xC8\xF9\x3B"
+ "\xF5\x87\xA7\xFC\x61\x3E\x24\x7F\x5F\x24\x78\x09" },
+ { GCRY_MD_TIGER1, "abc",
+ "\x2A\xAB\x14\x84\xE8\xC1\x58\xF2\xBF\xB8\xC5\xFF"
+ "\x41\xB5\x7A\x52\x51\x29\x13\x1C\x95\x7B\x5F\x93" },
+ { GCRY_MD_TIGER1, "message digest",
+ "\xD9\x81\xF8\xCB\x78\x20\x1A\x95\x0D\xCF\x30\x48"
+ "\x75\x1E\x44\x1C\x51\x7F\xCA\x1A\xA5\x5A\x29\xF6" },
+ { GCRY_MD_TIGER1, "abcdefghijklmnopqrstuvwxyz",
+ "\x17\x14\xA4\x72\xEE\xE5\x7D\x30\x04\x04\x12\xBF"
+ "\xCC\x55\x03\x2A\x0B\x11\x60\x2F\xF3\x7B\xEE\xE9" },
+ { GCRY_MD_TIGER1,
+ "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
+ "\x0F\x7B\xF9\xA1\x9B\x9C\x58\xF2\xB7\x61\x0D\xF7"
+ "\xE8\x4F\x0A\xC3\xA7\x1C\x63\x1E\x7B\x53\xF7\x8E" },
+ { GCRY_MD_TIGER1,
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "abcdefghijklmnopqrstuvwxyz" "0123456789",
+ "\x8D\xCE\xA6\x80\xA1\x75\x83\xEE\x50\x2B\xA3\x8A"
+ "\x3C\x36\x86\x51\x89\x0F\xFB\xCC\xDC\x49\xA8\xCC" },
+ { GCRY_MD_TIGER1,
+ "1234567890" "1234567890" "1234567890" "1234567890"
+ "1234567890" "1234567890" "1234567890" "1234567890",
+ "\x1C\x14\x79\x55\x29\xFD\x9F\x20\x7A\x95\x8F\x84"
+ "\xC5\x2F\x11\xE8\x87\xFA\x0C\xAB\xDF\xD9\x1B\xFD" },
+ { GCRY_MD_TIGER1, "!",
+ "\x6D\xB0\xE2\x72\x9C\xBE\xAD\x93\xD7\x15\xC6\xA7"
+ "\xD3\x63\x02\xE9\xB3\xCE\xE0\xD2\xBC\x31\x4B\x41" },
+
+ { GCRY_MD_TIGER2, "",
+ "\x44\x41\xBE\x75\xF6\x01\x87\x73\xC2\x06\xC2\x27"
+ "\x45\x37\x4B\x92\x4A\xA8\x31\x3F\xEF\x91\x9F\x41" },
+ { GCRY_MD_TIGER2, "a",
+ "\x67\xE6\xAE\x8E\x9E\x96\x89\x99\xF7\x0A\x23\xE7"
+ "\x2A\xEA\xA9\x25\x1C\xBC\x7C\x78\xA7\x91\x66\x36" },
+ { GCRY_MD_TIGER2, "abc",
+ "\xF6\x8D\x7B\xC5\xAF\x4B\x43\xA0\x6E\x04\x8D\x78"
+ "\x29\x56\x0D\x4A\x94\x15\x65\x8B\xB0\xB1\xF3\xBF" },
+ { GCRY_MD_TIGER2, "message digest",
+ "\xE2\x94\x19\xA1\xB5\xFA\x25\x9D\xE8\x00\x5E\x7D"
+ "\xE7\x50\x78\xEA\x81\xA5\x42\xEF\x25\x52\x46\x2D" },
+ { GCRY_MD_TIGER2, "abcdefghijklmnopqrstuvwxyz",
+ "\xF5\xB6\xB6\xA7\x8C\x40\x5C\x85\x47\xE9\x1C\xD8"
+ "\x62\x4C\xB8\xBE\x83\xFC\x80\x4A\x47\x44\x88\xFD" },
+ { GCRY_MD_TIGER2,
+ "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
+ "\xA6\x73\x7F\x39\x97\xE8\xFB\xB6\x3D\x20\xD2\xDF"
+ "\x88\xF8\x63\x76\xB5\xFE\x2D\x5C\xE3\x66\x46\xA9" },
+ { GCRY_MD_TIGER2,
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "abcdefghijklmnopqrstuvwxyz" "0123456789",
+ "\xEA\x9A\xB6\x22\x8C\xEE\x7B\x51\xB7\x75\x44\xFC"
+ "\xA6\x06\x6C\x8C\xBB\x5B\xBA\xE6\x31\x95\x05\xCD" },
+ { GCRY_MD_TIGER2,
+ "1234567890" "1234567890" "1234567890" "1234567890"
+ "1234567890" "1234567890" "1234567890" "1234567890",
+ "\xD8\x52\x78\x11\x53\x29\xEB\xAA\x0E\xEC\x85\xEC"
+ "\xDC\x53\x96\xFD\xA8\xAA\x3A\x58\x20\x94\x2F\xFF" },
+ { GCRY_MD_TIGER2, "!",
+ "\xE0\x68\x28\x1F\x06\x0F\x55\x16\x28\xCC\x57\x15"
+ "\xB9\xD0\x22\x67\x96\x91\x4D\x45\xF7\x71\x7C\xF4" },
+
{ GCRY_MD_WHIRLPOOL, "",
"\x19\xFA\x61\xD7\x55\x22\xA4\x66\x9B\x44\xE3\x9C\x1D\x2E\x17\x26"
"\xC5\x30\x23\x21\x30\xD4\x07\xF8\x9A\xFE\xE0\x96\x49\x97\xF7\xA7"
"\x3E\x83\xBE\x69\x8B\x28\x8F\xEB\xCF\x88\xE3\xE0\x3C\x4F\x07\x57"
"\xEA\x89\x64\xE5\x9B\x63\xD9\x37\x08\xB1\x38\xCC\x42\xA6\x6E\xB3" },
{ GCRY_MD_WHIRLPOOL, "a",
"\x8A\xCA\x26\x02\x79\x2A\xEC\x6F\x11\xA6\x72\x06\x53\x1F\xB7\xD7"
"\xF0\xDF\xF5\x94\x13\x14\x5E\x69\x73\xC4\x50\x01\xD0\x08\x7B\x42"
"\xD1\x1B\xC6\x45\x41\x3A\xEF\xF6\x3A\x42\x39\x1A\x39\x14\x5A\x59"
"\x1A\x92\x20\x0D\x56\x01\x95\xE5\x3B\x47\x85\x84\xFD\xAE\x23\x1A" },
{ GCRY_MD_WHIRLPOOL, "a",
"\x8A\xCA\x26\x02\x79\x2A\xEC\x6F\x11\xA6\x72\x06\x53\x1F\xB7\xD7"
"\xF0\xDF\xF5\x94\x13\x14\x5E\x69\x73\xC4\x50\x01\xD0\x08\x7B\x42"
"\xD1\x1B\xC6\x45\x41\x3A\xEF\xF6\x3A\x42\x39\x1A\x39\x14\x5A\x59"
"\x1A\x92\x20\x0D\x56\x01\x95\xE5\x3B\x47\x85\x84\xFD\xAE\x23\x1A" },
{ GCRY_MD_WHIRLPOOL,
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
"\xDC\x37\xE0\x08\xCF\x9E\xE6\x9B\xF1\x1F\x00\xED\x9A\xBA\x26\x90"
"\x1D\xD7\xC2\x8C\xDE\xC0\x66\xCC\x6A\xF4\x2E\x40\xF8\x2F\x3A\x1E"
"\x08\xEB\xA2\x66\x29\x12\x9D\x8F\xB7\xCB\x57\x21\x1B\x92\x81\xA6"
"\x55\x17\xCC\x87\x9D\x7B\x96\x21\x42\xC6\x5F\x5A\x7A\xF0\x14\x67" },
{ GCRY_MD_WHIRLPOOL,
"!",
"\x0C\x99\x00\x5B\xEB\x57\xEF\xF5\x0A\x7C\xF0\x05\x56\x0D\xDF\x5D"
"\x29\x05\x7F\xD8\x6B\x20\xBF\xD6\x2D\xEC\xA0\xF1\xCC\xEA\x4A\xF5"
"\x1F\xC1\x54\x90\xED\xDC\x47\xAF\x32\xBB\x2B\x66\xC3\x4F\xF9\xAD"
"\x8C\x60\x08\xAD\x67\x7F\x77\x12\x69\x53\xB2\x26\xE4\xED\x8B\x01" },
{ 0 },
};
int i;
if (verbose)
fprintf (stderr, "Starting hash checks.\n");
for (i = 0; algos[i].md; i++)
{
if ((gcry_md_test_algo (algos[i].md) || algos[i].md == GCRY_MD_MD5)
&& in_fips_mode)
{
if (verbose)
fprintf (stderr, " algorithm %d not available in fips mode\n",
algos[i].md);
continue;
}
if (verbose)
fprintf (stderr, " checking %s [%i] for length %zi\n",
gcry_md_algo_name (algos[i].md),
algos[i].md,
!strcmp (algos[i].data, "!")?
1000000 : strlen(algos[i].data));
check_one_md (algos[i].md, algos[i].data, strlen (algos[i].data),
algos[i].expect);
}
if (verbose)
fprintf (stderr, "Completed hash checks.\n");
}
static void
check_one_hmac (int algo, const char *data, int datalen,
const char *key, int keylen, const char *expect)
{
gcry_md_hd_t hd, hd2;
unsigned char *p;
int mdlen;
int i;
gcry_error_t err = 0;
err = gcry_md_open (&hd, algo, GCRY_MD_FLAG_HMAC);
if (err)
{
fail ("algo %d, grcy_md_open failed: %s\n", algo, gpg_strerror (err));
return;
}
mdlen = gcry_md_get_algo_dlen (algo);
if (mdlen < 1 || mdlen > 500)
{
fail ("algo %d, grcy_md_get_algo_dlen failed: %d\n", algo, mdlen);
return;
}
gcry_md_setkey( hd, key, keylen );
gcry_md_write (hd, data, datalen);
err = gcry_md_copy (&hd2, hd);
if (err)
{
fail ("algo %d, gcry_md_copy failed: %s\n", algo, gpg_strerror (err));
}
gcry_md_close (hd);
p = gcry_md_read (hd2, algo);
if (!p)
fail("algo %d, hmac gcry_md_read failed\n", algo);
if (memcmp (p, expect, mdlen))
{
printf ("computed: ");
for (i = 0; i < mdlen; i++)
printf ("%02x ", p[i] & 0xFF);
printf ("\nexpected: ");
for (i = 0; i < mdlen; i++)
printf ("%02x ", expect[i] & 0xFF);
printf ("\n");
fail ("algo %d, digest mismatch\n", algo);
}
gcry_md_close (hd2);
}
static void
check_hmac (void)
{
static struct algos
{
int md;
const char *data;
const char *key;
const char *expect;
} algos[] =
{
{ GCRY_MD_MD5, "what do ya want for nothing?", "Jefe",
"\x75\x0c\x78\x3e\x6a\xb0\xb5\x03\xea\xa8\x6e\x31\x0a\x5d\xb7\x38" },
{ GCRY_MD_MD5,
"Hi There",
"\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b",
"\x92\x94\x72\x7a\x36\x38\xbb\x1c\x13\xf4\x8e\xf8\x15\x8b\xfc\x9d" },
{ GCRY_MD_MD5,
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd",
"\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA",
"\x56\xbe\x34\x52\x1d\x14\x4c\x88\xdb\xb8\xc7\x33\xf0\xe8\xb3\xf6" },
{ GCRY_MD_MD5,
"\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
"\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
"\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
"\xcd\xcd\xcd\xcd\xcd",
"\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19",
"\x69\x7e\xaf\x0a\xca\x3a\x3a\xea\x3a\x75\x16\x47\x46\xff\xaa\x79" },
{ GCRY_MD_MD5, "Test With Truncation",
"\x0c\x0c\x0c\x0c\x0c\x0c\x0c\x0c\x0c\x0c\x0c\x0c\x0c\x0c\x0c\x0c",
"\x56\x46\x1e\xf2\x34\x2e\xdc\x00\xf9\xba\xb9\x95\x69\x0e\xfd\x4c" },
{ GCRY_MD_MD5, "Test Using Larger Than Block-Size Key - Hash Key First",
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa",
"\x6b\x1a\xb7\xfe\x4b\xd7\xbf\x8f\x0b\x62\xe6\xce\x61\xb9\xd0\xcd" },
{ GCRY_MD_MD5,
"Test Using Larger Than Block-Size Key and Larger Than One Block-Size Data",
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa",
"\x6f\x63\x0f\xad\x67\xcd\xa0\xee\x1f\xb1\xf5\x62\xdb\x3a\xa5\x3e", },
{ GCRY_MD_SHA256, "what do ya want for nothing?", "Jefe",
"\x5b\xdc\xc1\x46\xbf\x60\x75\x4e\x6a\x04\x24\x26\x08\x95\x75\xc7\x5a"
"\x00\x3f\x08\x9d\x27\x39\x83\x9d\xec\x58\xb9\x64\xec\x38\x43" },
{ GCRY_MD_SHA256,
"Hi There",
"\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b"
"\x0b\x0b\x0b",
"\xb0\x34\x4c\x61\xd8\xdb\x38\x53\x5c\xa8\xaf\xce\xaf\x0b\xf1\x2b\x88"
"\x1d\xc2\x00\xc9\x83\x3d\xa7\x26\xe9\x37\x6c\x2e\x32\xcf\xf7" },
{ GCRY_MD_SHA256,
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd",
"\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
"\xAA\xAA\xAA\xAA",
"\x77\x3e\xa9\x1e\x36\x80\x0e\x46\x85\x4d\xb8\xeb\xd0\x91\x81\xa7"
"\x29\x59\x09\x8b\x3e\xf8\xc1\x22\xd9\x63\x55\x14\xce\xd5\x65\xfe" },
{ GCRY_MD_SHA256,
"\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
"\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
"\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
"\xcd\xcd\xcd\xcd\xcd",
"\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19",
"\x82\x55\x8a\x38\x9a\x44\x3c\x0e\xa4\xcc\x81\x98\x99\xf2\x08"
"\x3a\x85\xf0\xfa\xa3\xe5\x78\xf8\x07\x7a\x2e\x3f\xf4\x67\x29\x66\x5b" },
{ GCRY_MD_SHA256,
"Test Using Larger Than Block-Size Key - Hash Key First",
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa",
"\x60\xe4\x31\x59\x1e\xe0\xb6\x7f\x0d\x8a\x26\xaa\xcb\xf5\xb7\x7f"
"\x8e\x0b\xc6\x21\x37\x28\xc5\x14\x05\x46\x04\x0f\x0e\xe3\x7f\x54" },
{ GCRY_MD_SHA256,
"This is a test using a larger than block-size key and a larger than block-size data. The key needs to be hashed before being used by the HMAC algorithm.",
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa",
"\x9b\x09\xff\xa7\x1b\x94\x2f\xcb\x27\x63\x5f\xbc\xd5\xb0\xe9\x44"
"\xbf\xdc\x63\x64\x4f\x07\x13\x93\x8a\x7f\x51\x53\x5c\x3a\x35\xe2" },
{ GCRY_MD_SHA224, "what do ya want for nothing?", "Jefe",
"\xa3\x0e\x01\x09\x8b\xc6\xdb\xbf\x45\x69\x0f\x3a\x7e\x9e\x6d\x0f"
"\x8b\xbe\xa2\xa3\x9e\x61\x48\x00\x8f\xd0\x5e\x44" },
{ GCRY_MD_SHA224,
"Hi There",
"\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b"
"\x0b\x0b\x0b",
"\x89\x6f\xb1\x12\x8a\xbb\xdf\x19\x68\x32\x10\x7c\xd4\x9d\xf3\x3f\x47"
"\xb4\xb1\x16\x99\x12\xba\x4f\x53\x68\x4b\x22" },
{ GCRY_MD_SHA224,
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd",
"\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
"\xAA\xAA\xAA\xAA",
"\x7f\xb3\xcb\x35\x88\xc6\xc1\xf6\xff\xa9\x69\x4d\x7d\x6a\xd2\x64"
"\x93\x65\xb0\xc1\xf6\x5d\x69\xd1\xec\x83\x33\xea" },
{ GCRY_MD_SHA224,
"\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
"\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
"\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
"\xcd\xcd\xcd\xcd\xcd",
"\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19",
"\x6c\x11\x50\x68\x74\x01\x3c\xac\x6a\x2a\xbc\x1b\xb3\x82\x62"
"\x7c\xec\x6a\x90\xd8\x6e\xfc\x01\x2d\xe7\xaf\xec\x5a" },
{ GCRY_MD_SHA224,
"Test Using Larger Than Block-Size Key - Hash Key First",
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa",
"\x95\xe9\xa0\xdb\x96\x20\x95\xad\xae\xbe\x9b\x2d\x6f\x0d\xbc\xe2"
"\xd4\x99\xf1\x12\xf2\xd2\xb7\x27\x3f\xa6\x87\x0e" },
{ GCRY_MD_SHA224,
"This is a test using a larger than block-size key and a larger than block-size data. The key needs to be hashed before being used by the HMAC algorithm.",
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa",
"\x3a\x85\x41\x66\xac\x5d\x9f\x02\x3f\x54\xd5\x17\xd0\xb3\x9d\xbd"
"\x94\x67\x70\xdb\x9c\x2b\x95\xc9\xf6\xf5\x65\xd1" },
{ GCRY_MD_SHA384, "what do ya want for nothing?", "Jefe",
"\xaf\x45\xd2\xe3\x76\x48\x40\x31\x61\x7f\x78\xd2\xb5\x8a\x6b\x1b"
"\x9c\x7e\xf4\x64\xf5\xa0\x1b\x47\xe4\x2e\xc3\x73\x63\x22\x44\x5e"
"\x8e\x22\x40\xca\x5e\x69\xe2\xc7\x8b\x32\x39\xec\xfa\xb2\x16\x49" },
{ GCRY_MD_SHA384,
"Hi There",
"\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b"
"\x0b\x0b\x0b",
"\xaf\xd0\x39\x44\xd8\x48\x95\x62\x6b\x08\x25\xf4\xab\x46\x90\x7f\x15"
"\xf9\xda\xdb\xe4\x10\x1e\xc6\x82\xaa\x03\x4c\x7c\xeb\xc5\x9c\xfa\xea"
"\x9e\xa9\x07\x6e\xde\x7f\x4a\xf1\x52\xe8\xb2\xfa\x9c\xb6" },
{ GCRY_MD_SHA384,
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd",
"\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
"\xAA\xAA\xAA\xAA",
"\x88\x06\x26\x08\xd3\xe6\xad\x8a\x0a\xa2\xac\xe0\x14\xc8\xa8\x6f"
"\x0a\xa6\x35\xd9\x47\xac\x9f\xeb\xe8\x3e\xf4\xe5\x59\x66\x14\x4b"
"\x2a\x5a\xb3\x9d\xc1\x38\x14\xb9\x4e\x3a\xb6\xe1\x01\xa3\x4f\x27" },
{ GCRY_MD_SHA384,
"\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
"\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
"\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
"\xcd\xcd\xcd\xcd\xcd",
"\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19",
"\x3e\x8a\x69\xb7\x78\x3c\x25\x85\x19\x33\xab\x62\x90\xaf\x6c\xa7"
"\x7a\x99\x81\x48\x08\x50\x00\x9c\xc5\x57\x7c\x6e\x1f\x57\x3b\x4e"
"\x68\x01\xdd\x23\xc4\xa7\xd6\x79\xcc\xf8\xa3\x86\xc6\x74\xcf\xfb" },
{ GCRY_MD_SHA384,
"Test Using Larger Than Block-Size Key - Hash Key First",
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa",
"\x4e\xce\x08\x44\x85\x81\x3e\x90\x88\xd2\xc6\x3a\x04\x1b\xc5\xb4"
"\x4f\x9e\xf1\x01\x2a\x2b\x58\x8f\x3c\xd1\x1f\x05\x03\x3a\xc4\xc6"
"\x0c\x2e\xf6\xab\x40\x30\xfe\x82\x96\x24\x8d\xf1\x63\xf4\x49\x52" },
{ GCRY_MD_SHA384,
"This is a test using a larger than block-size key and a larger than block-size data. The key needs to be hashed before being used by the HMAC algorithm.",
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa",
"\x66\x17\x17\x8e\x94\x1f\x02\x0d\x35\x1e\x2f\x25\x4e\x8f\xd3\x2c"
"\x60\x24\x20\xfe\xb0\xb8\xfb\x9a\xdc\xce\xbb\x82\x46\x1e\x99\xc5"
"\xa6\x78\xcc\x31\xe7\x99\x17\x6d\x38\x60\xe6\x11\x0c\x46\x52\x3e" },
{ GCRY_MD_SHA512, "what do ya want for nothing?", "Jefe",
"\x16\x4b\x7a\x7b\xfc\xf8\x19\xe2\xe3\x95\xfb\xe7\x3b\x56\xe0\xa3"
"\x87\xbd\x64\x22\x2e\x83\x1f\xd6\x10\x27\x0c\xd7\xea\x25\x05\x54"
"\x97\x58\xbf\x75\xc0\x5a\x99\x4a\x6d\x03\x4f\x65\xf8\xf0\xe6\xfd"
"\xca\xea\xb1\xa3\x4d\x4a\x6b\x4b\x63\x6e\x07\x0a\x38\xbc\xe7\x37" },
{ GCRY_MD_SHA512,
"Hi There",
"\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b"
"\x0b\x0b\x0b",
"\x87\xaa\x7c\xde\xa5\xef\x61\x9d\x4f\xf0\xb4\x24\x1a\x1d\x6c\xb0"
"\x23\x79\xf4\xe2\xce\x4e\xc2\x78\x7a\xd0\xb3\x05\x45\xe1\x7c\xde"
"\xda\xa8\x33\xb7\xd6\xb8\xa7\x02\x03\x8b\x27\x4e\xae\xa3\xf4\xe4"
"\xbe\x9d\x91\x4e\xeb\x61\xf1\x70\x2e\x69\x6c\x20\x3a\x12\x68\x54" },
{ GCRY_MD_SHA512,
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd",
"\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
"\xAA\xAA\xAA\xAA",
"\xfa\x73\xb0\x08\x9d\x56\xa2\x84\xef\xb0\xf0\x75\x6c\x89\x0b\xe9"
"\xb1\xb5\xdb\xdd\x8e\xe8\x1a\x36\x55\xf8\x3e\x33\xb2\x27\x9d\x39"
"\xbf\x3e\x84\x82\x79\xa7\x22\xc8\x06\xb4\x85\xa4\x7e\x67\xc8\x07"
"\xb9\x46\xa3\x37\xbe\xe8\x94\x26\x74\x27\x88\x59\xe1\x32\x92\xfb" },
{ GCRY_MD_SHA512,
"\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
"\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
"\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd"
"\xcd\xcd\xcd\xcd\xcd",
"\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19",
"\xb0\xba\x46\x56\x37\x45\x8c\x69\x90\xe5\xa8\xc5\xf6\x1d\x4a\xf7"
"\xe5\x76\xd9\x7f\xf9\x4b\x87\x2d\xe7\x6f\x80\x50\x36\x1e\xe3\xdb"
"\xa9\x1c\xa5\xc1\x1a\xa2\x5e\xb4\xd6\x79\x27\x5c\xc5\x78\x80\x63"
"\xa5\xf1\x97\x41\x12\x0c\x4f\x2d\xe2\xad\xeb\xeb\x10\xa2\x98\xdd" },
{ GCRY_MD_SHA512,
"Test Using Larger Than Block-Size Key - Hash Key First",
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa",
"\x80\xb2\x42\x63\xc7\xc1\xa3\xeb\xb7\x14\x93\xc1\xdd\x7b\xe8\xb4"
"\x9b\x46\xd1\xf4\x1b\x4a\xee\xc1\x12\x1b\x01\x37\x83\xf8\xf3\x52"
"\x6b\x56\xd0\x37\xe0\x5f\x25\x98\xbd\x0f\xd2\x21\x5d\x6a\x1e\x52"
"\x95\xe6\x4f\x73\xf6\x3f\x0a\xec\x8b\x91\x5a\x98\x5d\x78\x65\x98" },
{ GCRY_MD_SHA512,
"This is a test using a larger than block-size key and a larger than block-size data. The key needs to be hashed before being used by the HMAC algorithm.",
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa",
"\xe3\x7b\x6a\x77\x5d\xc8\x7d\xba\xa4\xdf\xa9\xf9\x6e\x5e\x3f\xfd"
"\xde\xbd\x71\xf8\x86\x72\x89\x86\x5d\xf5\xa3\x2d\x20\xcd\xc9\x44"
"\xb6\x02\x2c\xac\x3c\x49\x82\xb1\x0d\x5e\xeb\x55\xc3\xe4\xde\x15"
"\x13\x46\x76\xfb\x6d\xe0\x44\x60\x65\xc9\x74\x40\xfa\x8c\x6a\x58" },
{ 0 },
};
int i;
if (verbose)
fprintf (stderr, "Starting hashed MAC checks.\n");
for (i = 0; algos[i].md; i++)
{
if ((gcry_md_test_algo (algos[i].md) || algos[i].md == GCRY_MD_MD5)
&& in_fips_mode)
{
if (verbose)
fprintf (stderr, " algorithm %d not available in fips mode\n",
algos[i].md);
continue;
}
if (verbose)
fprintf (stderr,
" checking %s [%i] for %zi byte key and %zi byte data\n",
gcry_md_algo_name (algos[i].md),
algos[i].md,
strlen(algos[i].key), strlen(algos[i].data));
check_one_hmac (algos[i].md, algos[i].data, strlen (algos[i].data),
algos[i].key, strlen(algos[i].key),
algos[i].expect);
}
if (verbose)
fprintf (stderr, "Completed hashed MAC checks.\n");
}
/* Check that the signature SIG matches the hash HASH. PKEY is the
public key used for the verification. BADHASH is a hasvalue which
should; result in a bad signature status. */
static void
verify_one_signature (gcry_sexp_t pkey, gcry_sexp_t hash,
gcry_sexp_t badhash, gcry_sexp_t sig)
{
gcry_error_t rc;
rc = gcry_pk_verify (sig, hash, pkey);
if (rc)
fail ("gcry_pk_verify failed: %s\n", gpg_strerror (rc));
rc = gcry_pk_verify (sig, badhash, pkey);
if (gcry_err_code (rc) != GPG_ERR_BAD_SIGNATURE)
fail ("gcry_pk_verify failed to detect a bad signature: %s\n",
gpg_strerror (rc));
}
/* Test the public key sign function using the private ket SKEY. PKEY
is used for verification. */
static void
check_pubkey_sign (int n, gcry_sexp_t skey, gcry_sexp_t pkey)
{
gcry_error_t rc;
gcry_sexp_t sig, badhash, hash;
int dataidx;
static const char baddata[] =
"(data\n (flags pkcs1)\n"
" (hash sha1 #11223344556677889900AABBCCDDEEFF10203041#))\n";
static struct
{
const char *data;
int expected_rc;
} datas[] =
{
{ "(data\n (flags pkcs1)\n"
" (hash sha1 #11223344556677889900AABBCCDDEEFF10203040#))\n",
0 },
/* This test is to see whether hash algorithms not hard wired in
pubkey.c are detected: */
{ "(data\n (flags pkcs1)\n"
" (hash oid.1.3.14.3.2.29 "
" #11223344556677889900AABBCCDDEEFF10203040#))\n",
0 },
{ "(data\n (flags )\n"
" (hash sha1 #11223344556677889900AABBCCDDEEFF10203040#))\n",
GPG_ERR_CONFLICT },
{ "(data\n (flags pkcs1)\n"
" (hash foo #11223344556677889900AABBCCDDEEFF10203040#))\n",
GPG_ERR_DIGEST_ALGO },
{ "(data\n (flags )\n" " (value #11223344556677889900AA#))\n",
0 },
{ "(data\n (flags )\n" " (value #0090223344556677889900AA#))\n",
0 },
{ "(data\n (flags raw)\n" " (value #11223344556677889900AA#))\n",
0 },
{ "(data\n (flags pkcs1)\n"
" (value #11223344556677889900AA#))\n",
GPG_ERR_CONFLICT },
{ "(data\n (flags raw foo)\n"
" (value #11223344556677889900AA#))\n",
GPG_ERR_INV_FLAG },
{ NULL }
};
(void)n;
rc = gcry_sexp_sscan (&badhash, NULL, baddata, strlen (baddata));
if (rc)
die ("converting data failed: %s\n", gpg_strerror (rc));
for (dataidx = 0; datas[dataidx].data; dataidx++)
{
if (verbose)
fprintf (stderr, " signature test %d\n", dataidx);
rc = gcry_sexp_sscan (&hash, NULL, datas[dataidx].data,
strlen (datas[dataidx].data));
if (rc)
die ("converting data failed: %s\n", gpg_strerror (rc));
rc = gcry_pk_sign (&sig, hash, skey);
if (gcry_err_code (rc) != datas[dataidx].expected_rc)
fail ("gcry_pk_sign failed: %s\n", gpg_strerror (rc));
if (!rc)
verify_one_signature (pkey, hash, badhash, sig);
gcry_sexp_release (sig);
sig = NULL;
gcry_sexp_release (hash);
hash = NULL;
}
gcry_sexp_release (badhash);
}
static void
check_pubkey_grip (int n, const unsigned char *grip,
gcry_sexp_t skey, gcry_sexp_t pkey)
{
unsigned char sgrip[20], pgrip[20];
if (!gcry_pk_get_keygrip (skey, sgrip))
die ("get keygrip for private RSA key failed\n");
if (!gcry_pk_get_keygrip (pkey, pgrip))
die ("[%i] get keygrip for public RSA key failed\n", n);
if (memcmp (sgrip, pgrip, 20))
fail ("[%i] keygrips don't match\n", n);
if (memcmp (sgrip, grip, 20))
fail ("wrong keygrip for RSA key\n");
}
static void
do_check_one_pubkey (int n, gcry_sexp_t skey, gcry_sexp_t pkey,
const unsigned char *grip, int flags)
{
if (flags & FLAG_SIGN)
check_pubkey_sign (n, skey, pkey);
if (grip && (flags & FLAG_GRIP))
check_pubkey_grip (n, grip, skey, pkey);
}
static void
check_one_pubkey (int n, test_spec_pubkey_t spec)
{
gcry_error_t err = GPG_ERR_NO_ERROR;
gcry_sexp_t skey, pkey;
err = gcry_sexp_sscan (&skey, NULL, spec.key.secret,
strlen (spec.key.secret));
if (!err)
err = gcry_sexp_sscan (&pkey, NULL, spec.key.public,
strlen (spec.key.public));
if (err)
die ("converting sample key failed: %s\n", gpg_strerror (err));
do_check_one_pubkey (n, skey, pkey,
(const unsigned char*)spec.key.grip, spec.flags);
gcry_sexp_release (skey);
gcry_sexp_release (pkey);
}
static void
get_keys_new (gcry_sexp_t *pkey, gcry_sexp_t *skey)
{
gcry_sexp_t key_spec, key, pub_key, sec_key;
int rc;
if (verbose)
fprintf (stderr, " generating RSA key:");
rc = gcry_sexp_new (&key_spec,
in_fips_mode ? "(genkey (rsa (nbits 4:1024)))"
: "(genkey (rsa (nbits 4:1024)(transient-key)))",
0, 1);
if (rc)
die ("error creating S-expression: %s\n", gpg_strerror (rc));
rc = gcry_pk_genkey (&key, key_spec);
gcry_sexp_release (key_spec);
if (rc)
die ("error generating RSA key: %s\n", gpg_strerror (rc));
pub_key = gcry_sexp_find_token (key, "public-key", 0);
if (! pub_key)
die ("public part missing in key\n");
sec_key = gcry_sexp_find_token (key, "private-key", 0);
if (! sec_key)
die ("private part missing in key\n");
gcry_sexp_release (key);
*pkey = pub_key;
*skey = sec_key;
}
static void
check_one_pubkey_new (int n)
{
gcry_sexp_t skey, pkey;
get_keys_new (&pkey, &skey);
do_check_one_pubkey (n, skey, pkey, NULL, FLAG_SIGN | FLAG_CRYPT);
}
/* Run all tests for the public key functions. */
static void
check_pubkey (void)
{
test_spec_pubkey_t pubkeys[] =
{
{
GCRY_PK_RSA, FLAG_CRYPT | FLAG_SIGN,
{ "(private-key\n"
" (rsa\n"
" (n #00e0ce96f90b6c9e02f3922beada93fe50a875eac6bcc18bb9a9cf2e84965caa"
" 2d1ff95a7f542465c6c0c19d276e4526ce048868a7a914fd343cc3a87dd74291"
" ffc565506d5bbb25cbac6a0e2dd1f8bcaab0d4a29c2f37c950f363484bf269f7"
" 891440464baf79827e03a36e70b814938eebdc63e964247be75dc58b014b7ea251#)\n"
" (e #010001#)\n"
" (d #046129F2489D71579BE0A75FE029BD6CDB574EBF57EA8A5B0FDA942CAB943B11"
" 7D7BB95E5D28875E0F9FC5FCC06A72F6D502464DABDED78EF6B716177B83D5BD"
" C543DC5D3FED932E59F5897E92E6F58A0F33424106A3B6FA2CBF877510E4AC21"
" C3EE47851E97D12996222AC3566D4CCB0B83D164074ABF7DE655FC2446DA1781#)\n"
" (p #00e861b700e17e8afe6837e7512e35b6ca11d0ae47d8b85161c67baf64377213"
" fe52d772f2035b3ca830af41d8a4120e1c1c70d12cc22f00d28d31dd48a8d424f1#)\n"
" (q #00f7a7ca5367c661f8e62df34f0d05c10c88e5492348dd7bddc942c9a8f369f9"
" 35a07785d2db805215ed786e4285df1658eed3ce84f469b81b50d358407b4ad361#)\n"
" (u #304559a9ead56d2309d203811a641bb1a09626bc8eb36fffa23c968ec5bd891e"
" ebbafc73ae666e01ba7c8990bae06cc2bbe10b75e69fcacb353a6473079d8e9b#)))\n",
"(public-key\n"
" (rsa\n"
" (n #00e0ce96f90b6c9e02f3922beada93fe50a875eac6bcc18bb9a9cf2e84965caa"
" 2d1ff95a7f542465c6c0c19d276e4526ce048868a7a914fd343cc3a87dd74291"
" ffc565506d5bbb25cbac6a0e2dd1f8bcaab0d4a29c2f37c950f363484bf269f7"
" 891440464baf79827e03a36e70b814938eebdc63e964247be75dc58b014b7ea251#)\n"
" (e #010001#)))\n",
"\x32\x10\x0c\x27\x17\x3e\xf6\xe9\xc4\xe9"
"\xa2\x5d\x3d\x69\xf8\x6d\x37\xa4\xf9\x39"}
},
{
GCRY_PK_DSA, FLAG_SIGN,
{ "(private-key\n"
" (DSA\n"
" (p #00AD7C0025BA1A15F775F3F2D673718391D00456978D347B33D7B49E7F32EDAB"
" 96273899DD8B2BB46CD6ECA263FAF04A28903503D59062A8865D2AE8ADFB5191"
" CF36FFB562D0E2F5809801A1F675DAE59698A9E01EFE8D7DCFCA084F4C6F5A44"
" 44D499A06FFAEA5E8EF5E01F2FD20A7B7EF3F6968AFBA1FB8D91F1559D52D8777B#)\n"
" (q #00EB7B5751D25EBBB7BD59D920315FD840E19AEBF9#)\n"
" (g #1574363387FDFD1DDF38F4FBE135BB20C7EE4772FB94C337AF86EA8E49666503"
" AE04B6BE81A2F8DD095311E0217ACA698A11E6C5D33CCDAE71498ED35D13991E"
" B02F09AB40BD8F4C5ED8C75DA779D0AE104BC34C960B002377068AB4B5A1F984"
" 3FBA91F537F1B7CAC4D8DD6D89B0D863AF7025D549F9C765D2FC07EE208F8D15#)\n"
" (y #64B11EF8871BE4AB572AA810D5D3CA11A6CDBC637A8014602C72960DB135BF46"
" A1816A724C34F87330FC9E187C5D66897A04535CC2AC9164A7150ABFA8179827"
" 6E45831AB811EEE848EBB24D9F5F2883B6E5DDC4C659DEF944DCFD80BF4D0A20"
" 42CAA7DC289F0C5A9D155F02D3D551DB741A81695B74D4C8F477F9C7838EB0FB#)\n"
" (x #11D54E4ADBD3034160F2CED4B7CD292A4EBF3EC0#)))\n",
"(public-key\n"
" (DSA\n"
" (p #00AD7C0025BA1A15F775F3F2D673718391D00456978D347B33D7B49E7F32EDAB"
" 96273899DD8B2BB46CD6ECA263FAF04A28903503D59062A8865D2AE8ADFB5191"
" CF36FFB562D0E2F5809801A1F675DAE59698A9E01EFE8D7DCFCA084F4C6F5A44"
" 44D499A06FFAEA5E8EF5E01F2FD20A7B7EF3F6968AFBA1FB8D91F1559D52D8777B#)\n"
" (q #00EB7B5751D25EBBB7BD59D920315FD840E19AEBF9#)\n"
" (g #1574363387FDFD1DDF38F4FBE135BB20C7EE4772FB94C337AF86EA8E49666503"
" AE04B6BE81A2F8DD095311E0217ACA698A11E6C5D33CCDAE71498ED35D13991E"
" B02F09AB40BD8F4C5ED8C75DA779D0AE104BC34C960B002377068AB4B5A1F984"
" 3FBA91F537F1B7CAC4D8DD6D89B0D863AF7025D549F9C765D2FC07EE208F8D15#)\n"
" (y #64B11EF8871BE4AB572AA810D5D3CA11A6CDBC637A8014602C72960DB135BF46"
" A1816A724C34F87330FC9E187C5D66897A04535CC2AC9164A7150ABFA8179827"
" 6E45831AB811EEE848EBB24D9F5F2883B6E5DDC4C659DEF944DCFD80BF4D0A20"
" 42CAA7DC289F0C5A9D155F02D3D551DB741A81695B74D4C8F477F9C7838EB0FB#)))\n",
"\xc6\x39\x83\x1a\x43\xe5\x05\x5d\xc6\xd8"
"\x4a\xa6\xf9\xeb\x23\xbf\xa9\x12\x2d\x5b" }
},
{
GCRY_PK_ELG, FLAG_SIGN | FLAG_CRYPT,
{ "(private-key\n"
" (ELG\n"
" (p #00B93B93386375F06C2D38560F3B9C6D6D7B7506B20C1773F73F8DE56E6CD65D"
" F48DFAAA1E93F57A2789B168362A0F787320499F0B2461D3A4268757A7B27517"
" B7D203654A0CD484DEC6AF60C85FEB84AAC382EAF2047061FE5DAB81A20A0797"
" 6E87359889BAE3B3600ED718BE61D4FC993CC8098A703DD0DC942E965E8F18D2A7#)\n"
" (g #05#)\n"
" (y #72DAB3E83C9F7DD9A931FDECDC6522C0D36A6F0A0FEC955C5AC3C09175BBFF2B"
" E588DB593DC2E420201BEB3AC17536918417C497AC0F8657855380C1FCF11C5B"
" D20DB4BEE9BDF916648DE6D6E419FA446C513AAB81C30CB7B34D6007637BE675"
" 56CE6473E9F9EE9B9FADD275D001563336F2186F424DEC6199A0F758F6A00FF4#)\n"
" (x #03C28900087B38DABF4A0AB98ACEA39BB674D6557096C01D72E31C16BDD32214#)))\n",
"(public-key\n"
" (ELG\n"
" (p #00B93B93386375F06C2D38560F3B9C6D6D7B7506B20C1773F73F8DE56E6CD65D"
" F48DFAAA1E93F57A2789B168362A0F787320499F0B2461D3A4268757A7B27517"
" B7D203654A0CD484DEC6AF60C85FEB84AAC382EAF2047061FE5DAB81A20A0797"
" 6E87359889BAE3B3600ED718BE61D4FC993CC8098A703DD0DC942E965E8F18D2A7#)\n"
" (g #05#)\n"
" (y #72DAB3E83C9F7DD9A931FDECDC6522C0D36A6F0A0FEC955C5AC3C09175BBFF2B"
" E588DB593DC2E420201BEB3AC17536918417C497AC0F8657855380C1FCF11C5B"
" D20DB4BEE9BDF916648DE6D6E419FA446C513AAB81C30CB7B34D6007637BE675"
" 56CE6473E9F9EE9B9FADD275D001563336F2186F424DEC6199A0F758F6A00FF4#)))\n",
"\xa7\x99\x61\xeb\x88\x83\xd2\xf4\x05\xc8"
"\x4f\xba\x06\xf8\x78\x09\xbc\x1e\x20\xe5" }
},
};
int i;
if (verbose)
fprintf (stderr, "Starting public key checks.\n");
for (i = 0; i < sizeof (pubkeys) / sizeof (*pubkeys); i++)
if (pubkeys[i].id)
{
if (gcry_pk_test_algo (pubkeys[i].id) && in_fips_mode)
{
if (verbose)
fprintf (stderr, " algorithm %d not available in fips mode\n",
pubkeys[i].id);
continue;
}
check_one_pubkey (i, pubkeys[i]);
}
if (verbose)
fprintf (stderr, "Completed public key checks.\n");
if (verbose)
fprintf (stderr, "Starting additional public key checks.\n");
for (i = 0; i < sizeof (pubkeys) / sizeof (*pubkeys); i++)
if (pubkeys[i].id)
{
if (gcry_pk_test_algo (pubkeys[i].id) && in_fips_mode)
{
if (verbose)
fprintf (stderr, " algorithm %d not available in fips mode\n",
pubkeys[i].id);
continue;
}
check_one_pubkey_new (i);
}
if (verbose)
fprintf (stderr, "Completed additional public key checks.\n");
}
int
main (int argc, char **argv)
{
gpg_error_t err;
int last_argc = -1;
int debug = 0;
int use_fips = 0;
int selftest_only = 0;
if (argc)
{ argc--; argv++; }
while (argc && last_argc != argc )
{
last_argc = argc;
if (!strcmp (*argv, "--"))
{
argc--; argv++;
break;
}
else if (!strcmp (*argv, "--verbose"))
{
verbose++;
argc--; argv++;
}
else if (!strcmp (*argv, "--debug"))
{
verbose = debug = 1;
argc--; argv++;
}
else if (!strcmp (*argv, "--fips"))
{
use_fips = 1;
argc--; argv++;
}
else if (!strcmp (*argv, "--selftest"))
{
selftest_only = 1;
verbose += 2;
argc--; argv++;
}
}
gcry_control (GCRYCTL_SET_VERBOSITY, (int)verbose);
if (use_fips)
gcry_control (GCRYCTL_FORCE_FIPS_MODE, 0);
if (!gcry_check_version (GCRYPT_VERSION))
die ("version mismatch\n");
if ( gcry_fips_mode_active () )
in_fips_mode = 1;
if (!in_fips_mode)
gcry_control (GCRYCTL_DISABLE_SECMEM, 0);
if (verbose)
gcry_set_progress_handler (progress_handler, NULL);
gcry_control (GCRYCTL_INITIALIZATION_FINISHED, 0);
if (debug)
gcry_control (GCRYCTL_SET_DEBUG_FLAGS, 1u, 0);
/* No valuable keys are create, so we can speed up our RNG. */
gcry_control (GCRYCTL_ENABLE_QUICK_RANDOM, 0);
if (!selftest_only)
{
check_ciphers ();
check_aes128_cbc_cts_cipher ();
check_cbc_mac_cipher ();
check_ctr_cipher ();
check_cfb_cipher ();
check_ofb_cipher ();
check_digests ();
check_hmac ();
check_pubkey ();
}
if (in_fips_mode && !selftest_only)
{
/* If we are in fips mode do some more tests. */
gcry_md_hd_t md;
/* First trigger a self-test. */
gcry_control (GCRYCTL_FORCE_FIPS_MODE, 0);
if (!gcry_control (GCRYCTL_OPERATIONAL_P, 0))
fail ("not in operational state after self-test\n");
/* Get us into the error state. */
err = gcry_md_open (&md, GCRY_MD_SHA1, 0);
if (err)
fail ("failed to open SHA-1 hash context: %s\n", gpg_strerror (err));
else
{
err = gcry_md_enable (md, GCRY_MD_SHA256);
if (err)
fail ("failed to add SHA-256 hash context: %s\n",
gpg_strerror (err));
else
{
/* gcry_md_get_algo is only defined for a context with
just one digest algorithm. With our setup it should
put the oibrary intoerror state. */
fputs ("Note: Two lines with error messages follow "
"- this is expected\n", stderr);
gcry_md_get_algo (md);
gcry_md_close (md);
if (gcry_control (GCRYCTL_OPERATIONAL_P, 0))
fail ("expected error state but still in operational state\n");
else
{
/* Now run a self-test and to get back into
operational state. */
gcry_control (GCRYCTL_FORCE_FIPS_MODE, 0);
if (!gcry_control (GCRYCTL_OPERATIONAL_P, 0))
fail ("did not reach operational after error "
"and self-test\n");
}
}
}
}
else
{
/* If in standard mode, run selftests. */
if (gcry_control (GCRYCTL_SELFTEST, 0))
fail ("running self-test failed\n");
}
if (verbose)
fprintf (stderr, "\nAll tests completed. Errors: %i\n", error_count);
if (in_fips_mode && !gcry_fips_mode_active ())
fprintf (stderr, "FIPS mode is not anymore active\n");
return error_count ? 1 : 0;
}

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Tue, Jan 27, 8:49 PM (1 d, 22 h)
Storage Engine
local-disk
Storage Format
Raw Data
Storage Handle
5d/de/e7b1ef0910798096cd6c31616f03

Event Timeline