diff options
author | Dr. Stephen Henson <steve@openssl.org> | 2015-11-24 00:47:11 +0000 |
---|---|---|
committer | Dr. Stephen Henson <steve@openssl.org> | 2015-11-24 19:18:44 +0000 |
commit | 28f4580c1e510ccf4278a20975c9bc3306f758d6 (patch) | |
tree | 40e797073cbcae98ce40594f31bca92117367e08 | |
parent | a0f63828e3e542ba71b166b3d0cac05833591065 (diff) | |
download | openssl-28f4580c1e510ccf4278a20975c9bc3306f758d6.tar.gz |
Use EVP_md5_sha1() to process client verify
Reviewed-by: Tim Hudson <tjh@openssl.org>
-rw-r--r-- | ssl/statem/statem_srvr.c | 174 |
1 files changed, 44 insertions, 130 deletions
diff --git a/ssl/statem/statem_srvr.c b/ssl/statem/statem_srvr.c index 3b83add75a..d1146218a6 100644 --- a/ssl/statem/statem_srvr.c +++ b/ssl/statem/statem_srvr.c @@ -1550,8 +1550,7 @@ WORK_STATE tls_post_process_client_hello(SSL *s, WORK_STATE wst) s->s3->tmp.new_cipher = s->session->cipher; } - if (!(SSL_USE_SIGALGS(s) || (s->s3->tmp.new_cipher->algorithm_auth & (SSL_aGOST12|SSL_aGOST01)) ) - || !(s->verify_mode & SSL_VERIFY_PEER)) { + if (!(s->verify_mode & SSL_VERIFY_PEER)) { if (!ssl3_digest_cached_records(s, 0)) { al = SSL_AD_INTERNAL_ERROR; goto f_err; @@ -2933,8 +2932,7 @@ WORK_STATE tls_post_process_client_key_exchange(SSL *s, WORK_STATE wst) BIO_free(s->s3->handshake_buffer); s->s3->handshake_buffer = NULL; return WORK_FINISHED_CONTINUE; - } else if (SSL_USE_SIGALGS(s) || (s->s3->tmp.new_cipher->algorithm_auth - & (SSL_aGOST12|SSL_aGOST01) )) { + } else { if (!s->session->peer) { /* No peer certificate so we no longer need the handshake_buffer */ BIO_free(s->s3->handshake_buffer); @@ -2954,41 +2952,6 @@ WORK_STATE tls_post_process_client_key_exchange(SSL *s, WORK_STATE wst) ossl_statem_set_error(s); return WORK_ERROR; } - } else { - int offset = 0; - int dgst_num; - - /* - * We need to get hashes here so if there is a client cert, - * it can be verified FIXME - digest processing for - * CertificateVerify should be generalized. But it is next - * step - */ - if (!ssl3_digest_cached_records(s, 0)) { - ossl_statem_set_error(s); - return WORK_ERROR; - } - for (dgst_num = 0; dgst_num < SSL_MAX_DIGEST; dgst_num++) { - if (s->s3->handshake_dgst[dgst_num]) { - int dgst_size; - - s->method->ssl3_enc->cert_verify_mac(s, - EVP_MD_CTX_type - (s-> - s3->handshake_dgst - [dgst_num]), - &(s->s3-> - tmp.cert_verify_md - [offset])); - dgst_size = - EVP_MD_CTX_size(s->s3->handshake_dgst[dgst_num]); - if (dgst_size < 0) { - ossl_statem_set_error(s); - return WORK_ERROR; - } - offset += dgst_size; - } - } } return WORK_FINISHED_CONTINUE; @@ -2999,10 +2962,13 @@ MSG_PROCESS_RETURN tls_process_cert_verify(SSL *s, PACKET *pkt) EVP_PKEY *pkey = NULL; unsigned char *sig, *data; int al, ret = MSG_PROCESS_ERROR; - int type = 0, i, j; + int type = 0, j; unsigned int len; X509 *peer; const EVP_MD *md = NULL; + long hdatalen = 0; + void *hdata; + EVP_MD_CTX mctx; EVP_MD_CTX_init(&mctx); @@ -3043,6 +3009,10 @@ MSG_PROCESS_RETURN tls_process_cert_verify(SSL *s, PACKET *pkt) #ifdef SSL_DEBUG fprintf(stderr, "USING TLSv1.2 HASH %s\n", EVP_MD_name(md)); #endif + } else if (pkey->type == EVP_PKEY_RSA) { + md = EVP_md5_sha1(); + } else { + md = EVP_sha1(); } if (!PACKET_get_net_2(pkt, &len)) { SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, SSL_R_LENGTH_MISMATCH); @@ -3063,101 +3033,45 @@ MSG_PROCESS_RETURN tls_process_cert_verify(SSL *s, PACKET *pkt) goto f_err; } - if (SSL_USE_SIGALGS(s) - || pkey->type == NID_id_GostR3410_2001 - || pkey->type == NID_id_GostR3410_2012_256 - || pkey->type == NID_id_GostR3410_2012_512) { - long hdatalen = 0; - void *hdata; - hdatalen = BIO_get_mem_data(s->s3->handshake_buffer, &hdata); - if (hdatalen <= 0) { - SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, ERR_R_INTERNAL_ERROR); - al = SSL_AD_INTERNAL_ERROR; - goto f_err; - } + hdatalen = BIO_get_mem_data(s->s3->handshake_buffer, &hdata); + if (hdatalen <= 0) { + SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, ERR_R_INTERNAL_ERROR); + al = SSL_AD_INTERNAL_ERROR; + goto f_err; + } #ifdef SSL_DEBUG - fprintf(stderr, "Using TLS 1.2 with client verify alg %s\n", - EVP_MD_name(md)); + fprintf(stderr, "Using client verify alg %s\n", EVP_MD_name(md)); #endif - if (!SSL_USE_SIGALGS(s)) { - int dgst_nid; - if (EVP_PKEY_get_default_digest_nid(pkey, &dgst_nid) <= 0 - || (md = EVP_get_digestbynid(dgst_nid)) == NULL) { - SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, ERR_R_INTERNAL_ERROR); - al = SSL_AD_INTERNAL_ERROR; - goto f_err; - } - } - if (!EVP_VerifyInit_ex(&mctx, md, NULL) - || !EVP_VerifyUpdate(&mctx, hdata, hdatalen)) { - SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, ERR_R_EVP_LIB); - al = SSL_AD_INTERNAL_ERROR; - goto f_err; - } + if (!EVP_VerifyInit_ex(&mctx, md, NULL) + || !EVP_VerifyUpdate(&mctx, hdata, hdatalen)) { + SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, ERR_R_EVP_LIB); + al = SSL_AD_INTERNAL_ERROR; + goto f_err; + } - if (pkey->type == NID_id_GostR3410_2001 - || pkey->type == NID_id_GostR3410_2012_256 - || pkey->type == NID_id_GostR3410_2012_512) { - unsigned int j1, j2; - for (j1 = len - 1, j2 = 0; j2 < len/2; j2++, j1--) { - char c = data[j2]; - data[j2] = data[j1]; - data[j1] = c; - } + if (pkey->type == NID_id_GostR3410_2001 + || pkey->type == NID_id_GostR3410_2012_256 + || pkey->type == NID_id_GostR3410_2012_512) { + unsigned int j1, j2; + for (j1 = len - 1, j2 = 0; j2 < len/2; j2++, j1--) { + char c = data[j2]; + data[j2] = data[j1]; + data[j1] = c; } + } - if (EVP_VerifyFinal(&mctx, data, len, pkey) <= 0) { - al = SSL_AD_DECRYPT_ERROR; - SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, SSL_R_BAD_SIGNATURE); - goto f_err; - } - } else -#ifndef OPENSSL_NO_RSA - if (pkey->type == EVP_PKEY_RSA) { - i = RSA_verify(NID_md5_sha1, s->s3->tmp.cert_verify_md, - MD5_DIGEST_LENGTH + SHA_DIGEST_LENGTH, data, len, - pkey->pkey.rsa); - if (i < 0) { - al = SSL_AD_DECRYPT_ERROR; - SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, SSL_R_BAD_RSA_DECRYPT); - goto f_err; - } - if (i == 0) { - al = SSL_AD_DECRYPT_ERROR; - SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, SSL_R_BAD_RSA_SIGNATURE); - goto f_err; - } - } else -#endif -#ifndef OPENSSL_NO_DSA - if (pkey->type == EVP_PKEY_DSA) { - j = DSA_verify(pkey->save_type, - &(s->s3->tmp.cert_verify_md[MD5_DIGEST_LENGTH]), - SHA_DIGEST_LENGTH, data, len, pkey->pkey.dsa); - if (j <= 0) { - /* bad signature */ - al = SSL_AD_DECRYPT_ERROR; - SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, SSL_R_BAD_DSA_SIGNATURE); - goto f_err; - } - } else -#endif -#ifndef OPENSSL_NO_EC - if (pkey->type == EVP_PKEY_EC) { - j = ECDSA_verify(pkey->save_type, - &(s->s3->tmp.cert_verify_md[MD5_DIGEST_LENGTH]), - SHA_DIGEST_LENGTH, data, len, pkey->pkey.ec); - if (j <= 0) { - /* bad signature */ - al = SSL_AD_DECRYPT_ERROR; - SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, SSL_R_BAD_ECDSA_SIGNATURE); - goto f_err; - } - } else -#endif - { - SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, ERR_R_INTERNAL_ERROR); - al = SSL_AD_UNSUPPORTED_CERTIFICATE; + if (s->version == SSL3_VERSION + && !EVP_MD_CTX_ctrl(&mctx, EVP_CTRL_SSL3_MASTER_SECRET, + s->session->master_key_length, + s->session->master_key)) { + SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, ERR_R_EVP_LIB); + al = SSL_AD_INTERNAL_ERROR; + goto f_err; + } + + if (EVP_VerifyFinal(&mctx, data, len, pkey) <= 0) { + al = SSL_AD_DECRYPT_ERROR; + SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, SSL_R_BAD_SIGNATURE); goto f_err; } |