diff options
Diffstat (limited to 'ssl/s3_clnt.c')
| -rw-r--r-- | ssl/s3_clnt.c | 939 |
1 files changed, 771 insertions, 168 deletions
diff --git a/ssl/s3_clnt.c b/ssl/s3_clnt.c index 2c9fb87..b80d052 100644 --- a/ssl/s3_clnt.c +++ b/ssl/s3_clnt.c @@ -56,7 +56,7 @@ * [including the GNU Public Licence.] */ /* ==================================================================== - * Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved. + * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -121,6 +121,32 @@ * Vipul Gupta and Sumit Gupta of Sun Microsystems Laboratories. * */ +/* ==================================================================== + * Copyright 2005 Nokia. All rights reserved. + * + * The portions of the attached software ("Contribution") is developed by + * Nokia Corporation and is licensed pursuant to the OpenSSL open source + * license. + * + * The Contribution, originally written by Mika Kousa and Pasi Eronen of + * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites + * support (see RFC 4279) to OpenSSL. + * + * No patent licenses or other rights except those expressly stated in + * the OpenSSL open source license shall be deemed granted or received + * expressly, by implication, estoppel, or otherwise. + * + * No assurances are provided by Nokia that the Contribution does not + * infringe the patent or other intellectual property rights of any third + * party or that the license provides you with all the necessary rights + * to make use of the Contribution. + * + * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN + * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA + * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY + * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR + * OTHERWISE. + */ #include <stdio.h> #include "ssl_locl.h" @@ -133,7 +159,6 @@ #ifdef OPENSSL_FIPS #include <openssl/fips.h> #endif - #ifndef OPENSSL_NO_DH #include <openssl/dh.h> #endif @@ -142,15 +167,10 @@ #include <openssl/engine.h> #endif -static SSL_METHOD *ssl3_get_client_method(int ver); +static const SSL_METHOD *ssl3_get_client_method(int ver); static int ca_dn_cmp(const X509_NAME * const *a,const X509_NAME * const *b); -#ifndef OPENSSL_NO_ECDH -static int curve_id2nid(int curve_id); -int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs); -#endif - -static SSL_METHOD *ssl3_get_client_method(int ver) +static const SSL_METHOD *ssl3_get_client_method(int ver) { if (ver == SSL3_VERSION) return(SSLv3_client_method()); @@ -183,6 +203,18 @@ int ssl3_connect(SSL *s) s->in_handshake++; if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); +#ifndef OPENSSL_NO_HEARTBEATS + /* If we're awaiting a HeartbeatResponse, pretend we + * already got and don't await it anymore, because + * Heartbeats don't make sense during handshakes anyway. + */ + if (s->tlsext_hb_pending) + { + s->tlsext_hb_pending = 0; + s->tlsext_hb_seq++; + } +#endif + for (;;) { state=s->state; @@ -190,7 +222,7 @@ int ssl3_connect(SSL *s) switch(s->state) { case SSL_ST_RENEGOTIATE: - s->new_session=1; + s->renegotiate=1; s->state=SSL_ST_CONNECT; s->ctx->stats.sess_connect_renegotiate++; /* break */ @@ -261,8 +293,18 @@ int ssl3_connect(SSL *s) case SSL3_ST_CR_SRVR_HELLO_B: ret=ssl3_get_server_hello(s); if (ret <= 0) goto end; + if (s->hit) + { s->state=SSL3_ST_CR_FINISHED_A; +#ifndef OPENSSL_NO_TLSEXT + if (s->tlsext_ticket_expected) + { + /* receive renewed session ticket */ + s->state=SSL3_ST_CR_SESSION_TICKET_A; + } +#endif + } else s->state=SSL3_ST_CR_CERT_A; s->init_num=0; @@ -285,7 +327,9 @@ int ssl3_connect(SSL *s) } #endif /* Check if it is anon DH/ECDH */ - if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL)) + /* or PSK */ + if (!(s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL) && + !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)) { ret=ssl3_get_server_certificate(s); if (ret <= 0) goto end; @@ -338,6 +382,17 @@ int ssl3_connect(SSL *s) case SSL3_ST_CR_SRVR_DONE_B: ret=ssl3_get_server_done(s); if (ret <= 0) goto end; +#ifndef OPENSSL_NO_SRP + if (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kSRP) + { + if ((ret = SRP_Calc_A_param(s))<=0) + { + SSLerr(SSL_F_SSL3_CONNECT,SSL_R_SRP_A_CALC); + ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_INTERNAL_ERROR); + goto end; + } + } +#endif if (s->s3->tmp.cert_req) s->state=SSL3_ST_CW_CERT_A; else @@ -380,6 +435,11 @@ int ssl3_connect(SSL *s) s->state=SSL3_ST_CW_CHANGE_A; s->s3->change_cipher_spec=0; } + if (s->s3->flags & TLS1_FLAGS_SKIP_CERT_VERIFY) + { + s->state=SSL3_ST_CW_CHANGE_A; + s->s3->change_cipher_spec=0; + } s->init_num=0; break; @@ -398,7 +458,16 @@ int ssl3_connect(SSL *s) ret=ssl3_send_change_cipher_spec(s, SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B); if (ret <= 0) goto end; + + +#if defined(OPENSSL_NO_TLSEXT) || defined(OPENSSL_NO_NEXTPROTONEG) s->state=SSL3_ST_CW_FINISHED_A; +#else + if (s->s3->next_proto_neg_seen) + s->state=SSL3_ST_CW_NEXT_PROTO_A; + else + s->state=SSL3_ST_CW_FINISHED_A; +#endif s->init_num=0; s->session->cipher=s->s3->tmp.new_cipher; @@ -426,6 +495,15 @@ int ssl3_connect(SSL *s) break; +#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) + case SSL3_ST_CW_NEXT_PROTO_A: + case SSL3_ST_CW_NEXT_PROTO_B: + ret=ssl3_send_next_proto(s); + if (ret <= 0) goto end; + s->state=SSL3_ST_CW_FINISHED_A; + break; +#endif + case SSL3_ST_CW_FINISHED_A: case SSL3_ST_CW_FINISHED_B: ret=ssl3_send_finished(s, @@ -521,6 +599,7 @@ int ssl3_connect(SSL *s) /* else do it later in ssl3_write */ s->init_num=0; + s->renegotiate=0; s->new_session=0; ssl_update_cache(s,SSL_SESS_CACHE_CLIENT); @@ -610,9 +689,43 @@ int ssl3_client_hello(SSL *s) /* Do the message type and length last */ d=p= &(buf[4]); + /* version indicates the negotiated version: for example from + * an SSLv2/v3 compatible client hello). The client_version + * field is the maximum version we permit and it is also + * used in RSA encrypted premaster secrets. Some servers can + * choke if we initially report a higher version then + * renegotiate to a lower one in the premaster secret. This + * didn't happen with TLS 1.0 as most servers supported it + * but it can with TLS 1.1 or later if the server only supports + * 1.0. + * + * Possible scenario with previous logic: + * 1. Client hello indicates TLS 1.2 + * 2. Server hello says TLS 1.0 + * 3. RSA encrypted premaster secret uses 1.2. + * 4. Handhaked proceeds using TLS 1.0. + * 5. Server sends hello request to renegotiate. + * 6. Client hello indicates TLS v1.0 as we now + * know that is maximum server supports. + * 7. Server chokes on RSA encrypted premaster secret + * containing version 1.0. + * + * For interoperability it should be OK to always use the + * maximum version we support in client hello and then rely + * on the checking of version to ensure the servers isn't + * being inconsistent: for example initially negotiating with + * TLS 1.0 and renegotiating with TLS 1.2. We do this by using + * client_version in client hello and not resetting it to + * the negotiated version. + */ +#if 0 *(p++)=s->version>>8; *(p++)=s->version&0xff; s->client_version=s->version; +#else + *(p++)=s->client_version>>8; + *(p++)=s->client_version&0xff; +#endif /* Random stuff */ memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE); @@ -642,6 +755,15 @@ int ssl3_client_hello(SSL *s) SSLerr(SSL_F_SSL3_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE); goto err; } +#ifdef OPENSSL_MAX_TLS1_2_CIPHER_LENGTH + /* Some servers hang if client hello > 256 bytes + * as hack workaround chop number of supported ciphers + * to keep it well below this if we use TLS v1.2 + */ + if (TLS1_get_version(s) >= TLS1_2_VERSION + && i > OPENSSL_MAX_TLS1_2_CIPHER_LENGTH) + i = OPENSSL_MAX_TLS1_2_CIPHER_LENGTH & ~1; +#endif s2n(i,p); p+=i; @@ -649,7 +771,9 @@ int ssl3_client_hello(SSL *s) #ifdef OPENSSL_NO_COMP *(p++)=1; #else - if (s->ctx->comp_methods == NULL) + + if ((s->options & SSL_OP_NO_COMPRESSION) + || !s->ctx->comp_methods) j=0; else j=sk_SSL_COMP_num(s->ctx->comp_methods); @@ -661,13 +785,21 @@ int ssl3_client_hello(SSL *s) } #endif *(p++)=0; /* Add the NULL method */ + #ifndef OPENSSL_NO_TLSEXT + /* TLS extensions*/ + if (ssl_prepare_clienthello_tlsext(s) <= 0) + { + SSLerr(SSL_F_SSL3_CLIENT_HELLO,SSL_R_CLIENTHELLO_TLSEXT); + goto err; + } if ((p = ssl_add_clienthello_tlsext(s, p, buf+SSL3_RT_MAX_PLAIN_LENGTH)) == NULL) { SSLerr(SSL_F_SSL3_CLIENT_HELLO,ERR_R_INTERNAL_ERROR); goto err; } -#endif +#endif + l=(p-d); d=buf; *(d++)=SSL3_MT_CLIENT_HELLO; @@ -688,7 +820,7 @@ err: int ssl3_get_server_hello(SSL *s) { STACK_OF(SSL_CIPHER) *sk; - SSL_CIPHER *c; + const SSL_CIPHER *c; unsigned char *p,*d; int i,al,ok; unsigned int j; @@ -757,6 +889,23 @@ int ssl3_get_server_hello(SSL *s) goto f_err; } +#ifndef OPENSSL_NO_TLSEXT + /* check if we want to resume the session based on external pre-shared secret */ + if (s->version >= TLS1_VERSION && s->tls_session_secret_cb) + { + SSL_CIPHER *pref_cipher=NULL; + s->session->master_key_length=sizeof(s->session->master_key); + if (s->tls_session_secret_cb(s, s->session->master_key, + &s->session->master_key_length, + NULL, &pref_cipher, + s->tls_session_secret_cb_arg)) + { + s->session->cipher = pref_cipher ? + pref_cipher : ssl_get_cipher_by_char(s, p+j); + } + } +#endif /* OPENSSL_NO_TLSEXT */ + if (j != 0 && j == s->session->session_id_length && memcmp(p,s->session->session_id,j) == 0) { @@ -795,6 +944,14 @@ int ssl3_get_server_hello(SSL *s) SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNKNOWN_CIPHER_RETURNED); goto f_err; } + /* TLS v1.2 only ciphersuites require v1.2 or later */ + if ((c->algorithm_ssl & SSL_TLSV1_2) && + (TLS1_get_version(s) < TLS1_2_VERSION)) + { + al=SSL_AD_ILLEGAL_PARAMETER; + SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_CIPHER_RETURNED); + goto f_err; + } p+=ssl_put_cipher_by_char(s,NULL,NULL); sk=ssl_get_ciphers_by_id(s); @@ -826,7 +983,11 @@ int ssl3_get_server_hello(SSL *s) } } s->s3->tmp.new_cipher=c; - + /* Don't digest cached records if TLS v1.2: we may need them for + * client authentication. + */ + if (TLS1_get_version(s) < TLS1_2_VERSION && !ssl3_digest_cached_records(s)) + goto f_err; /* lets get the compression algorithm */ /* COMPRESSION */ #ifdef OPENSSL_NO_COMP @@ -836,10 +997,31 @@ int ssl3_get_server_hello(SSL *s) SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM); goto f_err; } + /* If compression is disabled we'd better not try to resume a session + * using compression. + */ + if (s->session->compress_meth != 0) + { + al=SSL_AD_INTERNAL_ERROR; + SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_INCONSISTENT_COMPRESSION); + goto f_err; + } #else j= *(p++); + if (s->hit && j != s->session->compress_meth) + { + al=SSL_AD_ILLEGAL_PARAMETER; + SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_OLD_SESSION_COMPRESSION_ALGORITHM_NOT_RETURNED); + goto f_err; + } if (j == 0) comp=NULL; + else if (s->options & SSL_OP_NO_COMPRESSION) + { + al=SSL_AD_ILLEGAL_PARAMETER; + SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_COMPRESSION_DISABLED); + goto f_err; + } else comp=ssl3_comp_find(s->ctx->comp_methods,j); @@ -854,6 +1036,7 @@ int ssl3_get_server_hello(SSL *s) s->s3->tmp.new_compression=comp; } #endif + #ifndef OPENSSL_NO_TLSEXT /* TLS extensions*/ if (s->version >= SSL3_VERSION) @@ -872,7 +1055,6 @@ int ssl3_get_server_hello(SSL *s) } #endif - if (p != (d+n)) { /* wrong packet length */ @@ -910,7 +1092,7 @@ int ssl3_get_server_certificate(SSL *s) if (!ok) return((int)n); if ((s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE) || - ((s->s3->tmp.new_cipher->algorithms & SSL_aKRB5) && + ((s->s3->tmp.new_cipher->algorithm_auth & SSL_aKRB5) && (s->s3->tmp.message_type == SSL3_MT_SERVER_DONE))) { s->s3->tmp.reuse_message=1; @@ -975,10 +1157,10 @@ int ssl3_get_server_certificate(SSL *s) i=ssl_verify_cert_chain(s,sk); if ((s->verify_mode != SSL_VERIFY_NONE) && (i <= 0) #ifndef OPENSSL_NO_KRB5 - && (s->s3->tmp.new_cipher->algorithms & (SSL_MKEY_MASK|SSL_AUTH_MASK)) - != (SSL_aKRB5|SSL_kKRB5) + && !((s->s3->tmp.new_cipher->algorithm_mkey & SSL_kKRB5) && + (s->s3->tmp.new_cipher->algorithm_auth & SSL_aKRB5)) #endif /* OPENSSL_NO_KRB5 */ - ) + ) { al=ssl_verify_alarm_type(s->verify_result); SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED); @@ -1002,15 +1184,15 @@ int ssl3_get_server_certificate(SSL *s) pkey=X509_get_pubkey(x); /* VRS: allow null cert if auth == KRB5 */ - need_cert = ((s->s3->tmp.new_cipher->algorithms - & (SSL_MKEY_MASK|SSL_AUTH_MASK)) - == (SSL_aKRB5|SSL_kKRB5))? 0: 1; + need_cert = ((s->s3->tmp.new_cipher->algorithm_mkey & SSL_kKRB5) && + (s->s3->tmp.new_cipher->algorithm_auth & SSL_aKRB5)) + ? 0 : 1; #ifdef KSSL_DEBUG - printf("pkey,x = %p, %p\n", (void *)pkey,(void *)x); + printf("pkey,x = %p, %p\n", pkey,x); printf("ssl_cert_type(x,pkey) = %d\n", ssl_cert_type(x,pkey)); - printf("cipher, alg, nc = %s, %lx, %d\n", s->s3->tmp.new_cipher->name, - s->s3->tmp.new_cipher->algorithms, need_cert); + printf("cipher, alg, nc = %s, %lx, %lx, %d\n", s->s3->tmp.new_cipher->name, + s->s3->tmp.new_cipher->algorithm_mkey, s->s3->tmp.new_cipher->algorithm_auth, need_cert); #endif /* KSSL_DEBUG */ if (need_cert && ((pkey == NULL) || EVP_PKEY_missing_parameters(pkey))) @@ -1082,8 +1264,9 @@ int ssl3_get_key_exchange(SSL *s) EVP_MD_CTX md_ctx; unsigned char *param,*p; int al,i,j,param_len,ok; - long n,alg; + long n,alg_k,alg_a; EVP_PKEY *pkey=NULL; + const EVP_MD *md = NULL; #ifndef OPENSSL_NO_RSA RSA *rsa=NULL; #endif @@ -1106,17 +1289,28 @@ int ssl3_get_key_exchange(SSL *s) -1, s->max_cert_list, &ok); - if (!ok) return((int)n); if (s->s3->tmp.message_type != SSL3_MT_SERVER_KEY_EXCHANGE) { +#ifndef OPENSSL_NO_PSK + /* In plain PSK ciphersuite, ServerKeyExchange can be + omitted if no identity hint is sent. Set + session->sess_cert anyway to avoid problems + later.*/ + if (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK) + { + s->session->sess_cert=ssl_sess_cert_new(); + if (s->ctx->psk_identity_hint) + OPENSSL_free(s->ctx->psk_identity_hint); + s->ctx->psk_identity_hint = NULL; + } +#endif s->s3->tmp.reuse_message=1; return(1); } param=p=(unsigned char *)s->init_msg; - if (s->session->sess_cert != NULL) { #ifndef OPENSSL_NO_RSA @@ -1147,11 +1341,137 @@ int ssl3_get_key_exchange(SSL *s) } param_len=0; - alg=s->s3->tmp.new_cipher->algorithms; + alg_k=s->s3->tmp.new_cipher->algorithm_mkey; + alg_a=s->s3->tmp.new_cipher->algorithm_auth; EVP_MD_CTX_init(&md_ctx); +#ifndef OPENSSL_NO_PSK + if (alg_k & SSL_kPSK) + { + char tmp_id_hint[PSK_MAX_IDENTITY_LEN+1]; + + al=SSL_AD_HANDSHAKE_FAILURE; + n2s(p,i); + param_len=i+2; + /* Store PSK identity hint for later use, hint is used + * in ssl3_send_client_key_exchange. Assume that the + * maximum length of a PSK identity hint can be as + * long as the maximum length of a PSK identity. */ + if (i > PSK_MAX_IDENTITY_LEN) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, + SSL_R_DATA_LENGTH_TOO_LONG); + goto f_err; + } + if (param_len > n) + { + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, + SSL_R_BAD_PSK_IDENTITY_HINT_LENGTH); + goto f_err; + } + /* If received PSK identity hint contains NULL + * characters, the hint is truncated from the first + * NULL. p may not be ending with NULL, so create a + * NULL-terminated string. */ + memcpy(tmp_id_hint, p, i); + memset(tmp_id_hint+i, 0, PSK_MAX_IDENTITY_LEN+1-i); + if (s->ctx->psk_identity_hint != NULL) + OPENSSL_free(s->ctx->psk_identity_hint); + s->ctx->psk_identity_hint = BUF_strdup(tmp_id_hint); + if (s->ctx->psk_identity_hint == NULL) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_MALLOC_FAILURE); + goto f_err; + } + + p+=i; + n-=param_len; + } + else +#endif /* !OPENSSL_NO_PSK */ +#ifndef OPENSSL_NO_SRP + if (alg_k & SSL_kSRP) + { + n2s(p,i); + param_len=i+2; + if (param_len > n) + { + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SRP_N_LENGTH); + goto f_err; + } + if (!(s->srp_ctx.N=BN_bin2bn(p,i,NULL))) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB); + goto err; + } + p+=i; + + n2s(p,i); + param_len+=i+2; + if (param_len > n) + { + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SRP_G_LENGTH); + goto f_err; + } + if (!(s->srp_ctx.g=BN_bin2bn(p,i,NULL))) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB); + goto err; + } + p+=i; + + i = (unsigned int)(p[0]); + p++; + param_len+=i+1; + if (param_len > n) + { + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SRP_S_LENGTH); + goto f_err; + } + if (!(s->srp_ctx.s=BN_bin2bn(p,i,NULL))) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB); + goto err; + } + p+=i; + + n2s(p,i); + param_len+=i+2; + if (param_len > n) + { + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SRP_B_LENGTH); + goto f_err; + } + if (!(s->srp_ctx.B=BN_bin2bn(p,i,NULL))) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB); + goto err; + } + p+=i; + n-=param_len; + +/* We must check if there is a certificate */ +#ifndef OPENSSL_NO_RSA + if (alg_a & SSL_aRSA) + pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509); +#else + if (0) + ; +#endif +#ifndef OPENSSL_NO_DSA + else if (alg_a & SSL_aDSS) + pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].x509); +#endif + } + else +#endif /* !OPENSSL_NO_SRP */ #ifndef OPENSSL_NO_RSA - if (alg & SSL_kRSA) + if (alg_k & SSL_kRSA) { if ((rsa=RSA_new()) == NULL) { @@ -1190,7 +1510,7 @@ int ssl3_get_key_exchange(SSL *s) n-=param_len; /* this should be because we are using an export cipher */ - if (alg & SSL_aRSA) + if (alg_a & SSL_aRSA) pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509); else { @@ -1205,7 +1525,7 @@ int ssl3_get_key_exchange(SSL *s) ; #endif #ifndef OPENSSL_NO_DH - else if (alg & SSL_kEDH) + else if (alg_k & SSL_kEDH) { if ((dh=DH_new()) == NULL) { @@ -1259,14 +1579,14 @@ int ssl3_get_key_exchange(SSL *s) n-=param_len; #ifndef OPENSSL_NO_RSA - if (alg & SSL_aRSA) + if (alg_a & SSL_aRSA) pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509); #else if (0) ; #endif #ifndef OPENSSL_NO_DSA - else if (alg & SSL_aDSS) + else if (alg_a & SSL_aDSS) pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].x509); #endif /* else anonymous DH, so no certificate or pkey. */ @@ -1274,7 +1594,7 @@ int ssl3_get_key_exchange(SSL *s) s->session->sess_cert->peer_dh_tmp=dh; dh=NULL; } - else if ((alg & SSL_kDHr) || (alg & SSL_kDHd)) + else if ((alg_k & SSL_kDHr) || (alg_k & SSL_kDHd)) { al=SSL_AD_ILLEGAL_PARAMETER; SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER); @@ -1283,7 +1603,7 @@ int ssl3_get_key_exchange(SSL *s) #endif /* !OPENSSL_NO_DH */ #ifndef OPENSSL_NO_ECDH - else if (alg & SSL_kECDHE) + else if (alg_k & SSL_kEECDH) { EC_GROUP *ngroup; const EC_GROUP *group; @@ -1306,7 +1626,7 @@ int ssl3_get_key_exchange(SSL *s) param_len=3; if ((param_len > n) || (*p != NAMED_CURVE_TYPE) || - ((curve_nid = curve_id2nid(*(p + 2))) == 0)) + ((curve_nid = tls1_ec_curve_id2nid(*(p + 2))) == 0)) { al=SSL_AD_INTERNAL_ERROR; SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS); @@ -1367,11 +1687,11 @@ int ssl3_get_key_exchange(SSL *s) */ if (0) ; #ifndef OPENSSL_NO_RSA - else if (alg & SSL_aRSA) + else if (alg_a & SSL_aRSA) pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509); #endif #ifndef OPENSSL_NO_ECDSA - else if (alg & SSL_aECDSA) + else if (alg_a & SSL_aECDSA) pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_ECC].x509); #endif /* else anonymous ECDH, so no certificate or pkey. */ @@ -1383,19 +1703,13 @@ int ssl3_get_key_exchange(SSL *s) EC_POINT_free(srvr_ecpoint); srvr_ecpoint = NULL; } - else if (alg & SSL_kECDH) + else if (alg_k) { al=SSL_AD_UNEXPECTED_MESSAGE; SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNEXPECTED_MESSAGE); goto f_err; } #endif /* !OPENSSL_NO_ECDH */ - if (alg & SSL_aFZA) - { - al=SSL_AD_HANDSHAKE_FAILURE; - SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER); - goto f_err; - } /* p points to the next byte, there are 'n' bytes left */ @@ -1403,6 +1717,38 @@ int ssl3_get_key_exchange(SSL *s) /* if it was signed, check the signature */ if (pkey != NULL) { + if (TLS1_get_version(s) >= TLS1_2_VERSION) + { + int sigalg = tls12_get_sigid(pkey); + /* Should never happen */ + if (sigalg == -1) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR); + goto err; + } + /* Check key type is consistent with signature */ + if (sigalg != (int)p[1]) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_WRONG_SIGNATURE_TYPE); + al=SSL_AD_DECODE_ERROR; + goto f_err; + } + md = tls12_get_hash(p[0]); + if (md == NULL) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNKNOWN_DIGEST); + al=SSL_AD_DECODE_ERROR; + goto f_err; + } +#ifdef SSL_DEBUG +fprintf(stderr, "USING TLSv1.2 HASH %s\n", EVP_MD_name(md)); +#endif + p += 2; + n -= 2; + } + else + md = EVP_sha1(); + n2s(p,i); n-=2; j=EVP_PKEY_size(pkey); @@ -1416,7 +1762,7 @@ int ssl3_get_key_exchange(SSL *s) } #ifndef OPENSSL_NO_RSA - if (pkey->type == EVP_PKEY_RSA) + if (pkey->type == EVP_PKEY_RSA && TLS1_get_version(s) < TLS1_2_VERSION) { int num; @@ -1453,11 +1799,8 @@ int ssl3_get_key_exchange(SSL *s) } else #endif -#ifndef OPENSSL_NO_DSA - if (pkey->type == EVP_PKEY_DSA) { - /* lets do DSS */ - EVP_VerifyInit_ex(&md_ctx,EVP_dss1(), NULL); + EVP_VerifyInit_ex(&md_ctx, md, NULL); EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE); EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE); EVP_VerifyUpdate(&md_ctx,param,param_len); @@ -1469,39 +1812,16 @@ int ssl3_get_key_exchange(SSL *s) goto f_err; } } - else -#endif -#ifndef OPENSSL_NO_ECDSA - if (pkey->type == EVP_PKEY_EC) - { - /* let's do ECDSA */ - EVP_VerifyInit_ex(&md_ctx,EVP_ecdsa(), NULL); - EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE); - EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE); - EVP_VerifyUpdate(&md_ctx,param,param_len); - if (EVP_VerifyFinal(&md_ctx,p,(int)n,pkey) <= 0) - { - /* bad signature */ - al=SSL_AD_DECRYPT_ERROR; - SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE); - goto f_err; - } - } - else -#endif - { - SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR); - goto err; - } } else { - /* still data left over */ - if (!(alg & SSL_aNULL)) + if (!(alg_a & SSL_aNULL) && !(alg_k & SSL_kPSK)) + /* aNULL or kPSK do not need public keys */ { SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR); goto err; } + /* still data left over */ if (n != 0) { al=SSL_AD_DECODE_ERROR; @@ -1538,7 +1858,7 @@ int ssl3_get_certificate_request(SSL *s) { int ok,ret=0; unsigned long n,nc,l; - unsigned int llen,ctype_num,i; + unsigned int llen, ctype_num,i; X509_NAME *xn=NULL; const unsigned char *p,*q; unsigned char *d; @@ -1558,6 +1878,14 @@ int ssl3_get_certificate_request(SSL *s) if (s->s3->tmp.message_type == SSL3_MT_SERVER_DONE) { s->s3->tmp.reuse_message=1; + /* If we get here we don't need any cached handshake records + * as we wont be doing client auth. + */ + if (s->s3->handshake_buffer) + { + if (!ssl3_digest_cached_records(s)) + goto err; + } return(1); } @@ -1571,8 +1899,7 @@ int ssl3_get_certificate_request(SSL *s) /* TLS does not like anon-DH with client cert */ if (s->version > SSL3_VERSION) { - l=s->s3->tmp.new_cipher->algorithms; - if (l & SSL_aNULL) + if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL) { ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE); SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER); @@ -1595,6 +1922,26 @@ int ssl3_get_certificate_request(SSL *s) for (i=0; i<ctype_num; i++) s->s3->tmp.ctype[i]= p[i]; p+=ctype_num; + if (TLS1_get_version(s) >= TLS1_2_VERSION) + { + n2s(p, llen); + /* Check we have enough room for signature algorithms and + * following length value. + */ + if ((unsigned long)(p - d + llen + 2) > n) + { + ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR); + SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_DATA_LENGTH_TOO_LONG); + goto err; + } + if ((llen & 1) || !tls1_process_sigalgs(s, p, llen)) + { + ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR); + SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_SIGNATURE_ALGORITHMS_ERROR); + goto err; + } + p += llen; + } /* get the CA RDNs */ n2s(p,llen); @@ -1607,7 +1954,7 @@ fclose(out); } #endif - if ((llen+ctype_num+2+1) != n) + if ((unsigned long)(p - d + llen) != n) { ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR); SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_LENGTH_MISMATCH); @@ -1774,8 +2121,7 @@ err: int ssl3_get_cert_status(SSL *s) { int ok, al; - unsigned long resplen; - long n; + unsigned long resplen,n; const unsigned char *p; n=s->method->ssl_get_message(s, @@ -1801,7 +2147,7 @@ int ssl3_get_cert_status(SSL *s) goto f_err; } n2l3(p, resplen); - if (resplen + 4 != (unsigned long)n) + if (resplen + 4 != n) { al = SSL_AD_DECODE_ERROR; SSLerr(SSL_F_SSL3_GET_CERT_STATUS,SSL_R_LENGTH_MISMATCH); @@ -1870,7 +2216,7 @@ int ssl3_send_client_key_exchange(SSL *s) { unsigned char *p,*d; int n; - unsigned long l; + unsigned long alg_k; #ifndef OPENSSL_NO_RSA unsigned char *q; EVP_PKEY *pkey=NULL; @@ -1892,12 +2238,12 @@ int ssl3_send_client_key_exchange(SSL *s) d=(unsigned char *)s->init_buf->data; p= &(d[4]); - l=s->s3->tmp.new_cipher->algorithms; + alg_k=s->s3->tmp.new_cipher->algorithm_mkey; /* Fool emacs indentation */ if (0) {} #ifndef OPENSSL_NO_RSA - else if (l & SSL_kRSA) + else if (alg_k & SSL_kRSA) { RSA *rsa; unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH]; @@ -1956,7 +2302,7 @@ int ssl3_send_client_key_exchange(SSL *s) } #endif #ifndef OPENSSL_NO_KRB5 - else if (l & SSL_kKRB5) + else if (alg_k & SSL_kKRB5) { krb5_error_code krb5rc; KSSL_CTX *kssl_ctx = s->kssl_ctx; @@ -1964,7 +2310,7 @@ int ssl3_send_client_key_exchange(SSL *s) krb5_data *enc_ticket; krb5_data authenticator, *authp = NULL; EVP_CIPHER_CTX ciph_ctx; - EVP_CIPHER *enc = NULL; + const EVP_CIPHER *enc = NULL; unsigned char iv[EVP_MAX_IV_LENGTH]; unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH]; unsigned char epms[SSL_MAX_MASTER_KEY_LENGTH @@ -1975,7 +2321,7 @@ int ssl3_send_client_key_exchange(SSL *s) #ifdef KSSL_DEBUG printf("ssl3_send_client_key_exchange(%lx & %lx)\n", - l, SSL_kKRB5); + alg_k, SSL_kKRB5); #endif /* KSSL_DEBUG */ authp = NULL; @@ -2067,7 +2413,7 @@ int ssl3_send_client_key_exchange(SSL *s) sizeof tmp_buf); EVP_EncryptFinal_ex(&ciph_ctx,&(epms[outl]),&padl); outl += padl; - if (outl > sizeof epms) + if (outl > (int)sizeof epms) { SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR); goto err; @@ -2081,7 +2427,7 @@ int ssl3_send_client_key_exchange(SSL *s) n+=outl + 2; s->session->master_key_length= - s->method->ssl3_enc->generate_master_secret(s, + s->method->ssl3_enc->generate_master_secret(s, s->session->master_key, tmp_buf, sizeof tmp_buf); @@ -2090,7 +2436,7 @@ int ssl3_send_client_key_exchange(SSL *s) } #endif #ifndef OPENSSL_NO_DH - else if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd)) + else if (alg_k & (SSL_kEDH|SSL_kDHr|SSL_kDHd)) { DH *dh_srvr,*dh_clnt; @@ -2099,7 +2445,7 @@ int ssl3_send_client_key_exchange(SSL *s) ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE); SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_UNEXPECTED_MESSAGE); goto err; - } + } if (s->session->sess_cert->peer_dh_tmp != NULL) dh_srvr=s->session->sess_cert->peer_dh_tmp; @@ -2120,6 +2466,7 @@ int ssl3_send_client_key_exchange(SSL *s) if (!DH_generate_key(dh_clnt)) { SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB); + DH_free(dh_clnt); goto err; } @@ -2131,6 +2478,7 @@ int ssl3_send_client_key_exchange(SSL *s) if (n <= 0) { SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB); + DH_free(dh_clnt); goto err; } @@ -2154,7 +2502,7 @@ int ssl3_send_client_key_exchange(SSL *s) #endif #ifndef OPENSSL_NO_ECDH - else if ((l & SSL_kECDH) || (l & SSL_kECDHE)) + else if (alg_k & (SSL_kEECDH|SSL_kECDHr|SSL_kECDHe)) { const EC_GROUP *srvr_group = NULL; EC_KEY *tkey; @@ -2166,7 +2514,7 @@ int ssl3_send_client_key_exchange(SSL *s) * computation as part of client certificate? * If so, set ecdh_clnt_cert to 1. */ - if ((l & SSL_kECDH) && (s->cert != NULL)) + if ((alg_k & (SSL_kECDHr|SSL_kECDHe)) && (s->cert != NULL)) { /* XXX: For now, we do not support client * authentication using ECDH certificates. @@ -2338,6 +2686,211 @@ int ssl3_send_client_key_exchange(SSL *s) EVP_PKEY_free(srvr_pub_pkey); } #endif /* !OPENSSL_NO_ECDH */ + else if (alg_k & SSL_kGOST) + { + /* GOST key exchange message creation */ + EVP_PKEY_CTX *pkey_ctx; + X509 *peer_cert; + size_t msglen; + unsigned int md_len; + int keytype; + unsigned char premaster_secret[32],shared_ukm[32], tmp[256]; + EVP_MD_CTX *ukm_hash; + EVP_PKEY *pub_key; + + /* Get server sertificate PKEY and create ctx from it */ + peer_cert=s->session->sess_cert->peer_pkeys[(keytype=SSL_PKEY_GOST01)].x509; + if (!peer_cert) + peer_cert=s->session->sess_cert->peer_pkeys[(keytype=SSL_PKEY_GOST94)].x509; + if (!peer_cert) { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_NO_GOST_CERTIFICATE_SENT_BY_PEER); + goto err; + } + + pkey_ctx=EVP_PKEY_CTX_new(pub_key=X509_get_pubkey(peer_cert),NULL); + /* If we have send a certificate, and certificate key + + * parameters match those of server certificate, use + * certificate key for key exchange + */ + + /* Otherwise, generate ephemeral key pair */ + + EVP_PKEY_encrypt_init(pkey_ctx); + /* Generate session key */ + RAND_bytes(premaster_secret,32); + /* If we have client certificate, use its secret as peer key */ + if (s->s3->tmp.cert_req && s->cert->key->privatekey) { + if (EVP_PKEY_derive_set_peer(pkey_ctx,s->cert->key->privatekey) <=0) { + /* If there was an error - just ignore it. Ephemeral key + * would be used + */ + ERR_clear_error(); + } + } + /* Compute shared IV and store it in algorithm-specific + * context data */ + ukm_hash = EVP_MD_CTX_create(); + EVP_DigestInit(ukm_hash,EVP_get_digestbynid(NID_id_GostR3411_94)); + EVP_DigestUpdate(ukm_hash,s->s3->client_random,SSL3_RANDOM_SIZE); + EVP_DigestUpdate(ukm_hash,s->s3->server_random,SSL3_RANDOM_SIZE); + EVP_DigestFinal_ex(ukm_hash, shared_ukm, &md_len); + EVP_MD_CTX_destroy(ukm_hash); + if (EVP_PKEY_CTX_ctrl(pkey_ctx,-1,EVP_PKEY_OP_ENCRYPT,EVP_PKEY_CTRL_SET_IV, + 8,shared_ukm)<0) { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, + SSL_R_LIBRARY_BUG); + goto err; + } + /* Make GOST keytransport blob message */ + /*Encapsulate it into sequence */ + *(p++)=V_ASN1_SEQUENCE | V_ASN1_CONSTRUCTED; + msglen=255; + if (EVP_PKEY_encrypt(pkey_ctx,tmp,&msglen,premaster_secret,32)<0) { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, + SSL_R_LIBRARY_BUG); + goto err; + } + if (msglen >= 0x80) + { + *(p++)=0x81; + *(p++)= msglen & 0xff; + n=msglen+3; + } + else + { + *(p++)= msglen & 0xff; + n=msglen+2; + } + memcpy(p, tmp, msglen); + /* Check if pubkey from client certificate was used */ + if (EVP_PKEY_CTX_ctrl(pkey_ctx, -1, -1, EVP_PKEY_CTRL_PEER_KEY, 2, NULL) > 0) + { + /* Set flag "skip certificate verify" */ + s->s3->flags |= TLS1_FLAGS_SKIP_CERT_VERIFY; + } + EVP_PKEY_CTX_free(pkey_ctx); + s->session->master_key_length= + s->method->ssl3_enc->generate_master_secret(s, + s->session->master_key,premaster_secret,32); + EVP_PKEY_free(pub_key); + + } +#ifndef OPENSSL_NO_SRP + else if (alg_k & SSL_kSRP) + { + if (s->srp_ctx.A != NULL) + { + /* send off the data */ + n=BN_num_bytes(s->srp_ctx.A); + s2n(n,p); + BN_bn2bin(s->srp_ctx.A,p); + n+=2; + } + else + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR); + goto err; + } + if (s->session->srp_username != NULL) + OPENSSL_free(s->session->srp_username); + s->session->srp_username = BUF_strdup(s->srp_ctx.login); + if (s->session->srp_username == NULL) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, + ERR_R_MALLOC_FAILURE); + goto err; + } + + if ((s->session->master_key_length = SRP_generate_client_master_secret(s,s->session->master_key))<0) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR); + goto err; + } + } +#endif +#ifndef OPENSSL_NO_PSK + else if (alg_k & SSL_kPSK) + { + char identity[PSK_MAX_IDENTITY_LEN]; + unsigned char *t = NULL; + unsigned char psk_or_pre_ms[PSK_MAX_PSK_LEN*2+4]; + unsigned int pre_ms_len = 0, psk_len = 0; + int psk_err = 1; + + n = 0; + if (s->psk_client_callback == NULL) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, + SSL_R_PSK_NO_CLIENT_CB); + goto err; + } + + psk_len = s->psk_client_callback(s, s->ctx->psk_identity_hint, + identity, PSK_MAX_IDENTITY_LEN, + psk_or_pre_ms, sizeof(psk_or_pre_ms)); + if (psk_len > PSK_MAX_PSK_LEN) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, + ERR_R_INTERNAL_ERROR); + goto psk_err; + } + else if (psk_len == 0) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, + SSL_R_PSK_IDENTITY_NOT_FOUND); + goto psk_err; + } + + /* create PSK pre_master_secret */ + pre_ms_len = 2+psk_len+2+psk_len; + t = psk_or_pre_ms; + memmove(psk_or_pre_ms+psk_len+4, psk_or_pre_ms, psk_len); + s2n(psk_len, t); + memset(t, 0, psk_len); + t+=psk_len; + s2n(psk_len, t); + + if (s->session->psk_identity_hint != NULL) + OPENSSL_free(s->session->psk_identity_hint); + s->session->psk_identity_hint = BUF_strdup(s->ctx->psk_identity_hint); + if (s->ctx->psk_identity_hint != NULL && + s->session->psk_identity_hint == NULL) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, + ERR_R_MALLOC_FAILURE); + goto psk_err; + } + + if (s->session->psk_identity != NULL) + OPENSSL_free(s->session->psk_identity); + s->session->psk_identity = BUF_strdup(identity); + if (s->session->psk_identity == NULL) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, + ERR_R_MALLOC_FAILURE); + goto psk_err; + } + + s->session->master_key_length = + s->method->ssl3_enc->generate_master_secret(s, + s->session->master_key, + psk_or_pre_ms, pre_ms_len); + n = strlen(identity); + s2n(n, p); + memcpy(p, identity, n); + n+=2; + psk_err = 0; + psk_err: + OPENSSL_cleanse(identity, PSK_MAX_IDENTITY_LEN); + OPENSSL_cleanse(psk_or_pre_ms, sizeof(psk_or_pre_ms)); + if (psk_err != 0) + { + ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE); + goto err; + } + } +#endif else { ssl3_send_alert(s, SSL3_AL_FATAL, @@ -2374,28 +2927,74 @@ int ssl3_send_client_verify(SSL *s) unsigned char *p,*d; unsigned char data[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH]; EVP_PKEY *pkey; -#ifndef OPENSSL_NO_RSA + EVP_PKEY_CTX *pctx=NULL; + EVP_MD_CTX mctx; unsigned u=0; -#endif unsigned long n; -#if !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA) int j; -#endif + + EVP_MD_CTX_init(&mctx); if (s->state == SSL3_ST_CW_CERT_VRFY_A) { d=(unsigned char *)s->init_buf->data; p= &(d[4]); pkey=s->cert->key->privatekey; - - s->method->ssl3_enc->cert_verify_mac(s,&(s->s3->finish_dgst2), - &(data[MD5_DIGEST_LENGTH])); - +/* Create context from key and test if sha1 is allowed as digest */ + pctx = EVP_PKEY_CTX_new(pkey,NULL); + EVP_PKEY_sign_init(pctx); + if (EVP_PKEY_CTX_set_signature_md(pctx, EVP_sha1())>0) + { + if (TLS1_get_version(s) < TLS1_2_VERSION) + s->method->ssl3_enc->cert_verify_mac(s, + NID_sha1, + &(data[MD5_DIGEST_LENGTH])); + } + else + { + ERR_clear_error(); + } + /* For TLS v1.2 send signature algorithm and signature + * using agreed digest and cached handshake records. + */ + if (TLS1_get_version(s) >= TLS1_2_VERSION) + { + long hdatalen = 0; + void *hdata; + const EVP_MD *md = s->cert->key->digest; + hdatalen = BIO_get_mem_data(s->s3->handshake_buffer, + &hdata); + if (hdatalen <= 0 || !tls12_get_sigandhash(p, pkey, md)) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY, + ERR_R_INTERNAL_ERROR); + goto err; + } + p += 2; +#ifdef SSL_DEBUG + fprintf(stderr, "Using TLS 1.2 with client alg %s\n", + EVP_MD_name(md)); +#endif + if (!EVP_SignInit_ex(&mctx, md, NULL) + || !EVP_SignUpdate(&mctx, hdata, hdatalen) + || !EVP_SignFinal(&mctx, p + 2, &u, pkey)) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY, + ERR_R_EVP_LIB); + goto err; + } + s2n(u,p); + n = u + 4; + if (!ssl3_digest_cached_records(s)) + goto err; + } + else #ifndef OPENSSL_NO_RSA if (pkey->type == EVP_PKEY_RSA) { s->method->ssl3_enc->cert_verify_mac(s, - &(s->s3->finish_dgst1),&(data[0])); + NID_md5, + &(data[0])); if (RSA_sign(NID_md5_sha1, data, MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH, &(p[2]), &u, pkey->pkey.rsa) <= 0 ) @@ -2441,10 +3040,30 @@ int ssl3_send_client_verify(SSL *s) } else #endif - { + if (pkey->type == NID_id_GostR3410_94 || pkey->type == NID_id_GostR3410_2001) + { + unsigned char signbuf[64]; + int i; + size_t sigsize=64; + s->method->ssl3_enc->cert_verify_mac(s, + NID_id_GostR3411_94, + data); + if (EVP_PKEY_sign(pctx, signbuf, &sigsize, data, 32) <= 0) { + SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY, + ERR_R_INTERNAL_ERROR); + goto err; + } + for (i=63,j=0; i>=0; j++, i--) { + p[2+j]=signbuf[i]; + } + s2n(j,p); + n=j+2; + } + else + { SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_INTERNAL_ERROR); goto err; - } + } *(d++)=SSL3_MT_CERTIFICATE_VERIFY; l2n3(n,d); @@ -2452,8 +3071,12 @@ int ssl3_send_client_verify(SSL *s) s->init_num=(int)n+4; s->init_off=0; } + EVP_MD_CTX_cleanup(&mctx); + EVP_PKEY_CTX_free(pctx); return(ssl3_do_write(s,SSL3_RT_HANDSHAKE)); err: + EVP_MD_CTX_cleanup(&mctx); + EVP_PKEY_CTX_free(pctx); return(-1); } @@ -2538,7 +3161,7 @@ int ssl3_send_client_certificate(SSL *s) int ssl3_check_cert_and_algorithm(SSL *s) { int i,idx; - long algs; + long alg_k,alg_a; EVP_PKEY *pkey=NULL; SESS_CERT *sc; #ifndef OPENSSL_NO_RSA @@ -2548,14 +3171,14 @@ int ssl3_check_cert_and_algorithm(SSL *s) DH *dh; #endif - sc=s->session->sess_cert; - - algs=s->s3->tmp.new_cipher->algorithms; + alg_k=s->s3->tmp.new_cipher->algorithm_mkey; + alg_a=s->s3->tmp.new_cipher->algorithm_auth; /* we don't have a certificate */ - if (algs & (SSL_aDH|SSL_aNULL|SSL_aKRB5)) + if ((alg_a & (SSL_aDH|SSL_aNULL|SSL_aKRB5)) || (alg_k & SSL_kPSK)) return(1); + sc=s->session->sess_cert; if (sc == NULL) { SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,ERR_R_INTERNAL_ERROR); @@ -2575,11 +3198,11 @@ int ssl3_check_cert_and_algorithm(SSL *s) #ifndef OPENSSL_NO_ECDH if (idx == SSL_PKEY_ECC) { - if (check_srvr_ecc_cert_and_alg(sc->peer_pkeys[idx].x509, - s->s3->tmp.new_cipher) == 0) + if (ssl_check_srvr_ecc_cert_and_alg(sc->peer_pkeys[idx].x509, + s) == 0) { /* check failed */ SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_BAD_ECC_CERT); - goto f_err; + goto f_err; } else { @@ -2593,20 +3216,20 @@ int ssl3_check_cert_and_algorithm(SSL *s) /* Check that we have a certificate if we require one */ - if ((algs & SSL_aRSA) && !has_bits(i,EVP_PK_RSA|EVP_PKT_SIGN)) + if ((alg_a & SSL_aRSA) && !has_bits(i,EVP_PK_RSA|EVP_PKT_SIGN)) { SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_SIGNING_CERT); goto f_err; } #ifndef OPENSSL_NO_DSA - else if ((algs & SSL_aDSS) && !has_bits(i,EVP_PK_DSA|EVP_PKT_SIGN)) + else if ((alg_a & SSL_aDSS) && !has_bits(i,EVP_PK_DSA|EVP_PKT_SIGN)) { SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DSA_SIGNING_CERT); goto f_err; } #endif #ifndef OPENSSL_NO_RSA - if ((algs & SSL_kRSA) && + if ((alg_k & SSL_kRSA) && !(has_bits(i,EVP_PK_RSA|EVP_PKT_ENC) || (rsa != NULL))) { SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_ENCRYPTING_CERT); @@ -2614,19 +3237,19 @@ int ssl3_check_cert_and_algorithm(SSL *s) } #endif #ifndef OPENSSL_NO_DH - if ((algs & SSL_kEDH) && + if ((alg_k & SSL_kEDH) && !(has_bits(i,EVP_PK_DH|EVP_PKT_EXCH) || (dh != NULL))) { SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_KEY); goto f_err; } - else if ((algs & SSL_kDHr) && !has_bits(i,EVP_PK_DH|EVP_PKS_RSA)) + else if ((alg_k & SSL_kDHr) && !has_bits(i,EVP_PK_DH|EVP_PKS_RSA)) { SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_RSA_CERT); goto f_err; } #ifndef OPENSSL_NO_DSA - else if ((algs & SSL_kDHd) && !has_bits(i,EVP_PK_DH|EVP_PKS_DSA)) + else if ((alg_k & SSL_kDHd) && !has_bits(i,EVP_PK_DH|EVP_PKS_DSA)) { SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_DSA_CERT); goto f_err; @@ -2637,7 +3260,7 @@ int ssl3_check_cert_and_algorithm(SSL *s) if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) && !has_bits(i,EVP_PKT_EXP)) { #ifndef OPENSSL_NO_RSA - if (algs & SSL_kRSA) + if (alg_k & SSL_kRSA) { if (rsa == NULL || RSA_size(rsa)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)) @@ -2649,7 +3272,7 @@ int ssl3_check_cert_and_algorithm(SSL *s) else #endif #ifndef OPENSSL_NO_DH - if (algs & (SSL_kEDH|SSL_kDHr|SSL_kDHd)) + if (alg_k & (SSL_kEDH|SSL_kDHr|SSL_kDHd)) { if (dh == NULL || DH_size(dh)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)) @@ -2672,48 +3295,31 @@ err: return(0); } - -#ifndef OPENSSL_NO_ECDH -/* This is the complement of nid2curve_id in s3_srvr.c. */ -static int curve_id2nid(int curve_id) -{ - /* ECC curves from draft-ietf-tls-ecc-01.txt (Mar 15, 2001) - * (no changes in draft-ietf-tls-ecc-03.txt [June 2003]) */ - static int nid_list[26] = +#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) +int ssl3_send_next_proto(SSL *s) { - 0, - NID_sect163k1, /* sect163k1 (1) */ - NID_sect163r1, /* sect163r1 (2) */ - NID_sect163r2, /* sect163r2 (3) */ - NID_sect193r1, /* sect193r1 (4) */ - NID_sect193r2, /* sect193r2 (5) */ - NID_sect233k1, /* sect233k1 (6) */ - NID_sect233r1, /* sect233r1 (7) */ - NID_sect239k1, /* sect239k1 (8) */ - NID_sect283k1, /* sect283k1 (9) */ - NID_sect283r1, /* sect283r1 (10) */ - NID_sect409k1, /* sect409k1 (11) */ - NID_sect409r1, /* sect409r1 (12) */ - NID_sect571k1, /* sect571k1 (13) */ - NID_sect571r1, /* sect571r1 (14) */ - NID_secp160k1, /* secp160k1 (15) */ - NID_secp160r1, /* secp160r1 (16) */ - NID_secp160r2, /* secp160r2 (17) */ - NID_secp192k1, /* secp192k1 (18) */ - NID_X9_62_prime192v1, /* secp192r1 (19) */ - NID_secp224k1, /* secp224k1 (20) */ - NID_secp224r1, /* secp224r1 (21) */ - NID_secp256k1, /* secp256k1 (22) */ - NID_X9_62_prime256v1, /* secp256r1 (23) */ - NID_secp384r1, /* secp384r1 (24) */ - NID_secp521r1 /* secp521r1 (25) */ - }; - - if ((curve_id < 1) || (curve_id > 25)) return 0; + unsigned int len, padding_len; + unsigned char *d; - return nid_list[curve_id]; + if (s->state == SSL3_ST_CW_NEXT_PROTO_A) + { + len = s->next_proto_negotiated_len; + padding_len = 32 - ((len + 2) % 32); + d = (unsigned char *)s->init_buf->data; + d[4] = len; + memcpy(d + 5, s->next_proto_negotiated, len); + d[5 + len] = padding_len; + memset(d + 6 + len, 0, padding_len); + *(d++)=SSL3_MT_NEXT_PROTO; + l2n3(2 + len + padding_len, d); + s->state = SSL3_ST_CW_NEXT_PROTO_B; + s->init_num = 4 + 2 + len + padding_len; + s->init_off = 0; + } + + return ssl3_do_write(s, SSL3_RT_HANDSHAKE); } -#endif +#endif /* !OPENSSL_NO_TLSEXT && !OPENSSL_NO_NEXTPROTONEG */ /* Check to see if handshake is full or resumed. Usually this is just a * case of checking to see if a cache hit has occurred. In the case of @@ -2725,11 +3331,8 @@ int ssl3_check_finished(SSL *s) { int ok; long n; - /* If we have no ticket or session ID is non-zero length (a match of - * a non-zero session length would never reach here) it cannot be a - * resumed session. - */ - if (!s->session->tlsext_tick || s->session->session_id_length) + /* If we have no ticket it cannot be a resumed session. */ + if (!s->session->tlsext_tick) return 1; /* this function is called when we really expect a Certificate * message, so permit appropriate message length */ |
