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| author | Simon Josefsson <simon@josefsson.org> | 2007-09-20 14:52:39 +0200 |
|---|---|---|
| committer | Simon Josefsson <simon@josefsson.org> | 2007-09-20 14:52:39 +0200 |
| commit | bdcd70e2b483f15189855cf966d96759686555a1 (patch) | |
| tree | 495c4d558b82c8ec266980e9c3f56f82d773e200 /lib/gnutls_kx.c | |
| parent | 15688b6cb74ad0a89b90a536db0771fc89eb3685 (diff) | |
| download | gnutls-bdcd70e2b483f15189855cf966d96759686555a1.tar.gz | |
Support for Opaque PRF Input TLS extension.
Diffstat (limited to 'lib/gnutls_kx.c')
| -rw-r--r-- | lib/gnutls_kx.c | 72 |
1 files changed, 67 insertions, 5 deletions
diff --git a/lib/gnutls_kx.c b/lib/gnutls_kx.c index edd1fb696a..05a5dc95dd 100644 --- a/lib/gnutls_kx.c +++ b/lib/gnutls_kx.c @@ -59,13 +59,8 @@ static int generate_normal_master (gnutls_session_t session, int keep_premaster) { int ret = 0; - opaque rnd[2 * TLS_RANDOM_SIZE + 1]; char buf[512]; - memcpy (rnd, session->security_parameters.client_random, TLS_RANDOM_SIZE); - memcpy (&rnd[TLS_RANDOM_SIZE], - session->security_parameters.server_random, TLS_RANDOM_SIZE); - _gnutls_hard_log ("INT: PREMASTER SECRET[%d]: %s\n", PREMASTER.size, _gnutls_bin2hex (PREMASTER.data, PREMASTER.size, buf, sizeof (buf))); @@ -78,6 +73,12 @@ generate_normal_master (gnutls_session_t session, int keep_premaster) if (gnutls_protocol_get_version (session) == GNUTLS_SSL3) { + opaque rnd[2 * TLS_RANDOM_SIZE + 1]; + + memcpy (rnd, session->security_parameters.client_random, TLS_RANDOM_SIZE); + memcpy (&rnd[TLS_RANDOM_SIZE], + session->security_parameters.server_random, TLS_RANDOM_SIZE); + ret = _gnutls_ssl3_generate_random (PREMASTER.data, PREMASTER.size, rnd, 2 * TLS_RANDOM_SIZE, @@ -86,8 +87,69 @@ generate_normal_master (gnutls_session_t session, int keep_premaster) master_secret); } + else if (session->security_parameters.extensions.oprfi_client_len > 0 && + session->security_parameters.extensions.oprfi_server_len > 0) + { + opaque *rnd; + size_t rndlen = 2 * TLS_RANDOM_SIZE; + + rndlen += session->security_parameters.extensions.oprfi_client_len; + rndlen += session->security_parameters.extensions.oprfi_server_len; + + rnd = gnutls_malloc (rndlen + 1); + if (!rnd) + { + gnutls_assert (); + return GNUTLS_E_MEMORY_ERROR; + } + + _gnutls_hard_log ("INT: CLIENT OPRFI[%d]: %s\n", + session->security_parameters. + extensions.oprfi_server_len, + _gnutls_bin2hex (session->security_parameters. + extensions.oprfi_client, + session->security_parameters. + extensions.oprfi_client_len, + buf, sizeof (buf))); + _gnutls_hard_log ("INT: SERVER OPRFI[%d]: %s\n", + session->security_parameters. + extensions.oprfi_server_len, + _gnutls_bin2hex (session->security_parameters. + extensions.oprfi_server, + session->security_parameters. + extensions.oprfi_server_len, + buf, sizeof (buf))); + + memcpy (rnd, session->security_parameters.client_random, + TLS_RANDOM_SIZE); + memcpy (rnd + TLS_RANDOM_SIZE, + session->security_parameters.extensions.oprfi_client, + session->security_parameters.extensions.oprfi_client_len); + memcpy (rnd + TLS_RANDOM_SIZE + + session->security_parameters.extensions.oprfi_client_len, + session->security_parameters.server_random, + TLS_RANDOM_SIZE); + memcpy (rnd + TLS_RANDOM_SIZE + + session->security_parameters.extensions.oprfi_client_len + + TLS_RANDOM_SIZE, + session->security_parameters.extensions.oprfi_server, + session->security_parameters.extensions.oprfi_server_len); + + ret = _gnutls_PRF (session, PREMASTER.data, PREMASTER.size, + MASTER_SECRET, strlen (MASTER_SECRET), + rnd, rndlen, TLS_MASTER_SIZE, + session->security_parameters.master_secret); + + gnutls_free (rnd); + } else { + opaque rnd[2 * TLS_RANDOM_SIZE + 1]; + + memcpy (rnd, session->security_parameters.client_random, TLS_RANDOM_SIZE); + memcpy (&rnd[TLS_RANDOM_SIZE], + session->security_parameters.server_random, TLS_RANDOM_SIZE); + ret = _gnutls_PRF (session, PREMASTER.data, PREMASTER.size, MASTER_SECRET, strlen (MASTER_SECRET), |