Home GnuPG

random: Add SP800-90A DRBG
ed57fed6de14Unpublished

Unpublished Commit ยท Learn More

Not On Permanent Ref: This commit is not an ancestor of any permanent ref.

Description

random: Add SP800-90A DRBG

* random/drbg.c: New.
* random/random.c (_gcry_random_initialize): Replace rngfips init by
drbg init.
(__gcry_random_close_fds): Likewise.
(_gcry_random_dump_stats): Likewise.
(_gcry_random_is_faked): Likewise.
(do_randomize): Likewise.
(_gcry_random_selftest): Likewise.
(_gcry_create_nonce): Replace rngfips_create_noce by drbg_randomize.
(_gcry_random_init_external_test): Remove.
(_gcry_random_run_external_test): Remove.
(_gcry_random_deinit_external_test): Remove.
* random/random.h (struct gcry_drbg_test_vector): New.
* src/gcrypt.h.in (struct gcry_drbg_gen): New.
(struct gcry_drbg_string): New.
(gcry_drbg_string_fill): New.
(gcry_randomize_drbg): New.
(GCRY_DRBG_): Lots of new macros.
* src/global.c (_gcry_vcontrol) <Init external random test>: Turn into
a nop.
(_gcry_vcontrol) <Deinit external random test>: Ditto.
(_gcry_vcontrol) <Run external random test>: Change.
(_gcry_vcontrol) <GCRYCTL_DRBG_REINIT>: New.

This patch set adds the SP800-90A DRBG for AES128, AES192, AES256 with
derivation function, SHA-1 through SHA-512 with derivation function,
HMAC SHA-1 through HMAC SHA-512. All DRBGs are provided with and without
prediction resistance. In addition, all DRBGs allow reseeding by the
caller.

The default DRBG is HMAC SHA-256 without prediction resistance.

The caller may re-initialize the DRBG with the control
GCRYCTL_DRBG_REINIT:

The patch replaces the invocation of the existing ANSI X9.31 DRNG. This
covers the control calls of 58 through 60. Control call 58 and 60 are
simply deactivated. Control 59 is replaced with the DRBG CAVS test
interface.

ChangeLog entries added by -wk

  • Signed-off-by: Stephan Mueller <smueller@chronox.de>

Details

Provenance
smueller_chronox.deAuthored on Feb 16 2016, 10:04 PM
wernerCommitted on Feb 18 2016, 3:21 PM
Parents
rC1da793d089b6: bufhelp: disable unaligned memory accesses on powerpc
Branches
Unknown
Tags
Unknown

Event Timeline

Werner Koch <wk@gnupg.org> committed rCed57fed6de14: random: Add SP800-90A DRBG (authored by Stephan Mueller <smueller@chronox.de>).Feb 18 2016, 3:21 PM