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| author | Nikos Mavrogiannopoulos <nmav@redhat.com> | 2017-03-15 15:11:14 +0100 |
|---|---|---|
| committer | Nikos Mavrogiannopoulos <nmav@gnutls.org> | 2017-03-16 10:46:45 +0000 |
| commit | 591a082c6deaa469bb192eaaf83b632046cf46e1 (patch) | |
| tree | 6be57c7d4b3ecb5f7c57869b971247717a9a0775 /lib/nettle/pk.c | |
| parent | 76f3db8b612981b65c548073e539b05faa9eb2c7 (diff) | |
| download | gnutls-591a082c6deaa469bb192eaaf83b632046cf46e1.tar.gz | |
_gnutls_pk_generate_keys: separate between ephemeral and long-term keys
That allows using the faster generator for ephemeral keys.
Signed-off-by: Nikos Mavrogiannopoulos <nmav@redhat.com>
Diffstat (limited to 'lib/nettle/pk.c')
| -rw-r--r-- | lib/nettle/pk.c | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/lib/nettle/pk.c b/lib/nettle/pk.c index f07f97940e..b8a2f42eaf 100644 --- a/lib/nettle/pk.c +++ b/lib/nettle/pk.c @@ -990,7 +990,7 @@ int _gnutls_dh_generate_key(gnutls_dh_params_t dh_params, priv_key->data = NULL; pub_key->data = NULL; - ret = _gnutls_pk_generate_keys(GNUTLS_PK_DH, dh_params->q_bits, ¶ms); + ret = _gnutls_pk_generate_keys(GNUTLS_PK_DH, dh_params->q_bits, ¶ms, 0); if (ret < 0) { return gnutls_assert_val(ret); } @@ -1084,7 +1084,7 @@ int _gnutls_ecdh_generate_key(gnutls_ecc_curve_t curve, y->data = NULL; k->data = NULL; - ret = _gnutls_pk_generate_keys(GNUTLS_PK_EC, curve, ¶ms); + ret = _gnutls_pk_generate_keys(GNUTLS_PK_EC, curve, ¶ms, 0); if (ret < 0) { return gnutls_assert_val(ret); } @@ -1295,10 +1295,21 @@ cleanup: static int wrap_nettle_pk_generate_keys(gnutls_pk_algorithm_t algo, unsigned int level /*bits or curve */ , - gnutls_pk_params_st * params) + gnutls_pk_params_st * params, + unsigned ephemeral /*non-zero if they are ephemeral keys */) { int ret; unsigned int i; + unsigned rnd_level; + nettle_random_func *rnd_func; + + if (ephemeral) { + rnd_level = GNUTLS_RND_RANDOM; + rnd_func = rnd_tmpkey_func; + } else { + rnd_func = rnd_key_func; + rnd_level = GNUTLS_RND_KEY; + } switch (algo) { case GNUTLS_PK_DSA: @@ -1317,7 +1328,7 @@ wrap_nettle_pk_generate_keys(gnutls_pk_algorithm_t algo, ret = dsa_generate_dss_keypair(&pub, y, x, - NULL, rnd_key_func, + NULL, rnd_func, NULL, NULL); if (ret != 1 || HAVE_LIB_ERROR()) { gnutls_assert(); @@ -1374,13 +1385,13 @@ wrap_nettle_pk_generate_keys(gnutls_pk_algorithm_t algo, if (have_q) { mpz_set(r, pub.q); mpz_sub_ui(r, r, 2); - nettle_mpz_random(x, NULL, rnd_tmpkey_func, r); + nettle_mpz_random(x, NULL, rnd_func, r); mpz_add_ui(x, x, 1); } else { unsigned size = mpz_sizeinbase(pub.p, 2); if (level == 0) level = MIN(size, DH_EXPONENT_SIZE(size)); - nettle_mpz_random_size(x, NULL, rnd_tmpkey_func, level); + nettle_mpz_random_size(x, NULL, rnd_func, level); if (level >= size) mpz_mod(x, x, pub.p); @@ -1451,14 +1462,14 @@ wrap_nettle_pk_generate_keys(gnutls_pk_algorithm_t algo, params->seed_size = sizeof(params->seed); ret = rsa_generate_fips186_4_keypair(&pub, &priv, NULL, - rnd_key_func, NULL, NULL, + rnd_func, NULL, NULL, ¶ms->seed_size, params->seed, level); } } else { ret = rsa_generate_keypair(&pub, &priv, NULL, - rnd_key_func, NULL, NULL, + rnd_func, NULL, NULL, level, 0); } if (ret != 1 || HAVE_LIB_ERROR()) { @@ -1515,7 +1526,7 @@ wrap_nettle_pk_generate_keys(gnutls_pk_algorithm_t algo, ecc_scalar_init(&key, curve); ecc_point_init(&pub, curve); - ecdsa_generate_keypair(&pub, &key, NULL, rnd_key_func); + ecdsa_generate_keypair(&pub, &key, NULL, rnd_func); if (HAVE_LIB_ERROR()) { ret = gnutls_assert_val(GNUTLS_E_LIB_IN_ERROR_STATE); goto ecc_fail; @@ -1565,7 +1576,7 @@ wrap_nettle_pk_generate_keys(gnutls_pk_algorithm_t algo, goto fail; } - ret = gnutls_rnd(GNUTLS_RND_RANDOM, params->raw_priv.data, size); + ret = gnutls_rnd(rnd_level, params->raw_priv.data, size); if (ret < 0) { ret = gnutls_assert_val(GNUTLS_E_MEMORY_ERROR); goto fail; |