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| author | Daiki Ueno <ueno@gnu.org> | 2020-07-17 17:45:17 +0200 |
|---|---|---|
| committer | Daiki Ueno <ueno@gnu.org> | 2020-08-31 08:13:45 +0200 |
| commit | 5f7b4eb7e8d4d1f8a2fc76fa2b89590958f8187b (patch) | |
| tree | f4cf1fa5827d3bfd9caada3b08e50826a0abff27 /lib/dh-primes.c | |
| parent | 2f6cd079cb6b613bf7906af9e7bdff0e5ec80406 (diff) | |
| download | gnutls-5f7b4eb7e8d4d1f8a2fc76fa2b89590958f8187b.tar.gz | |
dh-primes: make the FIPS approved check return Q value
This is necessary for full public key validation in
SP800-56A (revision 3), section 5.6.2.3.1.
Signed-off-by: Daiki Ueno <ueno@gnu.org>
Diffstat (limited to 'lib/dh-primes.c')
| -rw-r--r-- | lib/dh-primes.c | 38 |
1 files changed, 23 insertions, 15 deletions
diff --git a/lib/dh-primes.c b/lib/dh-primes.c index a43a8e5dea..a440b5b98a 100644 --- a/lib/dh-primes.c +++ b/lib/dh-primes.c @@ -1894,25 +1894,28 @@ const gnutls_datum_t gnutls_modp_8192_group_generator = { const unsigned int gnutls_modp_8192_key_bits = 512; unsigned -_gnutls_dh_prime_is_fips_approved(const uint8_t *prime, - size_t prime_size, - const uint8_t *generator, - size_t generator_size) +_gnutls_dh_prime_match_fips_approved(const uint8_t *prime, + size_t prime_size, + const uint8_t *generator, + size_t generator_size, + uint8_t **q, + size_t *q_size) { static const struct { const gnutls_datum_t *prime; const gnutls_datum_t *generator; + const gnutls_datum_t *q; } primes[] = { - { &gnutls_ffdhe_8192_group_prime, &gnutls_ffdhe_8192_group_generator }, - { &gnutls_ffdhe_6144_group_prime, &gnutls_ffdhe_6144_group_generator }, - { &gnutls_ffdhe_4096_group_prime, &gnutls_ffdhe_4096_group_generator }, - { &gnutls_ffdhe_3072_group_prime, &gnutls_ffdhe_3072_group_generator }, - { &gnutls_ffdhe_2048_group_prime, &gnutls_ffdhe_2048_group_generator }, - { &gnutls_modp_8192_group_prime, &gnutls_modp_8192_group_generator }, - { &gnutls_modp_6144_group_prime, &gnutls_modp_6144_group_generator }, - { &gnutls_modp_4096_group_prime, &gnutls_modp_4096_group_generator }, - { &gnutls_modp_3072_group_prime, &gnutls_modp_3072_group_generator }, - { &gnutls_modp_2048_group_prime, &gnutls_modp_2048_group_generator }, + { &gnutls_ffdhe_8192_group_prime, &gnutls_ffdhe_8192_group_generator, &gnutls_ffdhe_8192_group_q }, + { &gnutls_ffdhe_6144_group_prime, &gnutls_ffdhe_6144_group_generator, &gnutls_ffdhe_6144_group_q }, + { &gnutls_ffdhe_4096_group_prime, &gnutls_ffdhe_4096_group_generator, &gnutls_ffdhe_4096_group_q }, + { &gnutls_ffdhe_3072_group_prime, &gnutls_ffdhe_3072_group_generator, &gnutls_ffdhe_3072_group_q }, + { &gnutls_ffdhe_2048_group_prime, &gnutls_ffdhe_2048_group_generator, &gnutls_ffdhe_2048_group_q }, + { &gnutls_modp_8192_group_prime, &gnutls_modp_8192_group_generator, &gnutls_modp_8192_group_q }, + { &gnutls_modp_6144_group_prime, &gnutls_modp_6144_group_generator, &gnutls_modp_6144_group_q }, + { &gnutls_modp_4096_group_prime, &gnutls_modp_4096_group_generator, &gnutls_modp_4096_group_q }, + { &gnutls_modp_3072_group_prime, &gnutls_modp_3072_group_generator, &gnutls_modp_3072_group_q }, + { &gnutls_modp_2048_group_prime, &gnutls_modp_2048_group_generator, &gnutls_modp_2048_group_q }, }; size_t i; @@ -1920,8 +1923,13 @@ _gnutls_dh_prime_is_fips_approved(const uint8_t *prime, if (primes[i].prime->size == prime_size && memcmp(primes[i].prime->data, prime, primes[i].prime->size) == 0 && primes[i].generator->size == generator_size && - memcmp(primes[i].generator->data, generator, primes[i].generator->size) == 0) + memcmp(primes[i].generator->data, generator, primes[i].generator->size) == 0) { + if (q) { + *q = primes[i].q->data; + *q_size = primes[i].q->size; + } return 1; + } } return 0; |