diff options
author | Arne Schwabe <arne@rfc2549.org> | 2014-06-15 22:21:10 +0200 |
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committer | Arne Schwabe <arne@rfc2549.org> | 2014-06-15 22:21:10 +0200 |
commit | c35453897494d2b488961f7a446b4df8e24c6f31 (patch) | |
tree | a454987f969b676b446a518ed51e70e9bc9e00ca /main/openssl/ssl/t1_enc.c | |
parent | 5d397e6220daa87129883a93353286cd6ffd18e8 (diff) |
Update OpenSSL to 1.0.1h
Diffstat (limited to 'main/openssl/ssl/t1_enc.c')
-rw-r--r-- | main/openssl/ssl/t1_enc.c | 99 |
1 files changed, 60 insertions, 39 deletions
diff --git a/main/openssl/ssl/t1_enc.c b/main/openssl/ssl/t1_enc.c index 2ed2e076..22dd3cab 100644 --- a/main/openssl/ssl/t1_enc.c +++ b/main/openssl/ssl/t1_enc.c @@ -895,54 +895,79 @@ int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *out) return((int)ret); } +/* tls1_handshake_digest calculates the current handshake hash and writes it to + * |out|, which has space for |out_len| bytes. It returns the number of bytes + * written or -1 in the event of an error. This function works on a copy of the + * underlying digests so can be called multiple times and prior to the final + * update etc. */ +int tls1_handshake_digest(SSL *s, unsigned char *out, size_t out_len) + { + const EVP_MD *md; + EVP_MD_CTX ctx; + int i, err = 0, len = 0; + long mask; + + EVP_MD_CTX_init(&ctx); + + for (i = 0; ssl_get_handshake_digest(i, &mask, &md); i++) + { + int hash_size; + unsigned int digest_len; + EVP_MD_CTX *hdgst = s->s3->handshake_dgst[i]; + + if ((mask & ssl_get_algorithm2(s)) == 0) + continue; + + hash_size = EVP_MD_size(md); + if (!hdgst || hash_size < 0 || (size_t)hash_size > out_len) + { + err = 1; + break; + } + + if (!EVP_MD_CTX_copy_ex(&ctx, hdgst) || + !EVP_DigestFinal_ex(&ctx, out, &digest_len) || + digest_len != (unsigned int)hash_size) /* internal error */ + { + err = 1; + break; + } + out += digest_len; + out_len -= digest_len; + len += digest_len; + } + + EVP_MD_CTX_cleanup(&ctx); + + if (err != 0) + return -1; + return len; + } + int tls1_final_finish_mac(SSL *s, const char *str, int slen, unsigned char *out) { - unsigned int i; - EVP_MD_CTX ctx; unsigned char buf[2*EVP_MAX_MD_SIZE]; - unsigned char *q,buf2[12]; - int idx; - long mask; + unsigned char buf2[12]; int err=0; - const EVP_MD *md; + int digests_len; - q=buf; - - if (s->s3->handshake_buffer) + if (s->s3->handshake_buffer) if (!ssl3_digest_cached_records(s)) return 0; - EVP_MD_CTX_init(&ctx); - - for (idx=0;ssl_get_handshake_digest(idx,&mask,&md);idx++) + digests_len = tls1_handshake_digest(s, buf, sizeof(buf)); + if (digests_len < 0) { - if (mask & ssl_get_algorithm2(s)) - { - int hashsize = EVP_MD_size(md); - EVP_MD_CTX *hdgst = s->s3->handshake_dgst[idx]; - if (!hdgst || hashsize < 0 || hashsize > (int)(sizeof buf - (size_t)(q-buf))) - { - /* internal error: 'buf' is too small for this cipersuite! */ - err = 1; - } - else - { - if (!EVP_MD_CTX_copy_ex(&ctx, hdgst) || - !EVP_DigestFinal_ex(&ctx,q,&i) || - (i != (unsigned int)hashsize)) - err = 1; - q+=hashsize; - } - } + err = 1; + digests_len = 0; } - + if (!tls1_PRF(ssl_get_algorithm2(s), - str,slen, buf,(int)(q-buf), NULL,0, NULL,0, NULL,0, + str,slen, buf, digests_len, NULL,0, NULL,0, NULL,0, s->session->master_key,s->session->master_key_length, out,buf2,sizeof buf2)) err = 1; - EVP_MD_CTX_cleanup(&ctx); if (err) return 0; @@ -1048,14 +1073,10 @@ int tls1_mac(SSL *ssl, unsigned char *md, int send) if (!stream_mac) EVP_MD_CTX_cleanup(&hmac); #ifdef TLS_DEBUG -printf("sec="); -{unsigned int z; for (z=0; z<md_size; z++) printf("%02X ",mac_sec[z]); printf("\n"); } printf("seq="); {int z; for (z=0; z<8; z++) printf("%02X ",seq[z]); printf("\n"); } -printf("buf="); -{int z; for (z=0; z<5; z++) printf("%02X ",buf[z]); printf("\n"); } printf("rec="); -{unsigned int z; for (z=0; z<rec->length; z++) printf("%02X ",buf[z]); printf("\n"); } +{unsigned int z; for (z=0; z<rec->length; z++) printf("%02X ",rec->data[z]); printf("\n"); } #endif if (ssl->version != DTLS1_VERSION && ssl->version != DTLS1_BAD_VER) @@ -1185,7 +1206,7 @@ int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen, if (memcmp(val, TLS_MD_KEY_EXPANSION_CONST, TLS_MD_KEY_EXPANSION_CONST_SIZE) == 0) goto err1; - rv = tls1_PRF(s->s3->tmp.new_cipher->algorithm2, + rv = tls1_PRF(ssl_get_algorithm2(s), val, vallen, NULL, 0, NULL, 0, |