Pushed rC254fb14044cf: kdf: Change new KDF API.

@jukivili , thank you for your comment.

I planned to reply to your email on mailing-list, but I just have too little time.

For the record, there is a new report on the mailing list about this module on MacOS:

Thank you, applied both of two patches.

Thanks. Looks good to me.

Test cases are recovered in rC535a4d345872: fips: Recover test cases for selftest, add skipping in FIPS mode..

Sorry, it's my misunderstanding.
_gcry_fips_run_selftest can be run by GCRYCTL_SELFTEST.
I was confused by the function name. Perhaps, it is good to change the name of function to _gcry_run_selftest.

@werner Those removed tests are selftests which are only invoked by FIPS mode for its requirement of selftests.

AFAICS, the last commit removes some tests. We should never remove a test just because FIPS does not allow it. The old tests need to be run in non-fips mode.

Hi, @gniibe and @Jakuje. That fulfills the requirement and all the regression tests pass in FIPS mode. Thanks!

Pushed the change in rC76aad97dd312: fips: Reject shorter key for HMAC in FIPS mode..

And we need to fix selftest for shorter keys.

@pmgdeb : IIUC, what we need is:

diff --git a/cipher/md.c b/cipher/md.c
index 34336b5c..4f4fc9bf 100644
--- a/cipher/md.c
+++ b/cipher/md.c
@@ -903,6 +903,9 @@ prepare_macpads (gcry_md_hd_t a, const unsigned char *key, size_t keylen)
 {
   GcryDigestEntry *r;

In T5512#153650, @Jakuje wrote:

This is my draft for the FIPS indicator KDF. I think we do not need to keep the original GCRYCTL_FIPS_SERVICE_INDICATOR if we replace it also in the tests. This will also need some tests and documentation update.

libgcrypt-fips-indicator-kdf.patch3 KBDownload

I'm not completely sure but it might be convenient to mark HMAC keys with lengths less that 112 as non-approved in FIPS mode for both generation and verification. It could be easily implemented by adding a check using cipher/mac-hmac.c:hmac_get_keylen() or at the algo level. What do you think?

Thank you, applied.
Also, add another change.

I went through the documentation related to FIPS and updated some wording to match reality. It will probably require still some more work.

This is my draft for the FIPS indicator KDF. I think we do not need to keep the original GCRYCTL_FIPS_SERVICE_INDICATOR if we replace it also in the tests. This will also need some tests and documentation update.

Yes, we should introduce an INDICATOR_KDF thing.

Thank you.
Applied.

Patch applied, doc updated.
No change of FSM diagram.

I pushed the change: rC383866f014f2: cipher: Keep original behavior of Key Unwrap when not extended.

The previous comment should have come to the T5600. Sorry for the noise.

Sorry for resurrecting the done task, but I got a message from @pmgdeb who noticed there is mismatch between parenthesis in the --with-fips-module-version help string. The attached patch fixes the issue and add proper help text.

Sorry for resurrecting the done task, but I got a message from @pmgdeb who noticed there is mismatch between parenthesis in the --with-fips-module-version help string. The attached patch fixes the issue and add proper help text.

Now, unwrapping supports both cases (KW and KWP).

For unwrapping, it is good if we can support "automatic" unwrapping, apply W^-1 and check the first 8 octets to see if it's KW or KWP.

Thanks. Looks good to me (both merged changes and the above proposal). In addition to the changes proposed above, we certainly need to update the documentation about this, probably also the FSM diagram.

And I'm testing following:

The "at first" change done.

At first, I think that we need to change the way how libgcrypt rejects non-approved cipher/md/mac/pk.

FWIW, We have a similar mechanism for the secure memory

We talked today about the renaming the current "linux" entropy module to "oldlinux" would make sense.

Ok, I'll add.

Seen. @jukivili can you please add it to the AUTHORS file?

GnuPG needs to be fixed. Done by rGe08225030dfb: w32: Prepare for the case gcrypt.h will not include winsock2.h..

Thank you for comments on random/rndlinux.c.

Pushed another patch to clarify the semantics of --enable-random-daemon;
It's only for building gcryptrnd and the test program getrandom.

Good catch. I pushed the change to remove use of random daemon remained.

Thank you for your quick testing.

Thank you. Tested locally that it does what it is supposed to do and all tests passed for me as expected.

Reading through the changes, the content and usage of the getentropy looks good.

the random daemon is still part of the configure.ac and the undefined _gcry_daemon_initialize_basics() and _gcry_daemon_randomize() is still used under the USE_RANDOM_DAEMON guard in several places. I think at least the following cases should be removed too (or the configure check to be modified to throw error or warning):

Here is the change remained:

diff --git a/src/fips.c b/src/fips.c
index bcadc5f2..5499aee8 100644
--- a/src/fips.c
+++ b/src/fips.c
@@ -82,6 +82,12 @@ static void fips_new_state (enum module_states new_state);

Before rebasing, I pushed a change to simplify access to no_secure_memory variable by rC209d98dcf66b: Simplify the logic for no_secure_memory..

Ok, I have subscribed to the mailing list. I have resent the DCO.

DCO has not appeared on mailing-list. You can this from check list archives, https://lists.gnupg.org/pipermail/gcrypt-devel/2021-December/thread.html

Thanks Jussi, I did not receive the list moderator's email so I am not sure if the it has been posted on gcrypt-devel@gnupg.org. If not, I can resend the DCO. Thanks.

I did some finishing touches on coding style:

Hi Jussi,

Few comments on new patch:

Hi jukivili,

The first is a warning and the other error codes are exactly what we want.

Thank you, applied.