2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
58 /* ====================================================================
59 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
87 * 6. Redistributions of any form whatsoever must retain the following
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
111 /* ====================================================================
112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
114 * Portions of the attached software ("Contribution") are developed by
115 * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
117 * The Contribution is licensed pursuant to the OpenSSL open source
118 * license provided above.
120 * ECC cipher suite support in OpenSSL originally written by
121 * Vipul Gupta and Sumit Gupta of Sun Microsystems Laboratories.
124 /* ====================================================================
125 * Copyright 2005 Nokia. All rights reserved.
127 * The portions of the attached software ("Contribution") is developed by
128 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
131 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
132 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
133 * support (see RFC 4279) to OpenSSL.
135 * No patent licenses or other rights except those expressly stated in
136 * the OpenSSL open source license shall be deemed granted or received
137 * expressly, by implication, estoppel, or otherwise.
139 * No assurances are provided by Nokia that the Contribution does not
140 * infringe the patent or other intellectual property rights of any third
141 * party or that the license provides you with all the necessary rights
142 * to make use of the Contribution.
144 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
145 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
146 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
147 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
152 #include "ssl_locl.h"
153 #include "kssl_lcl.h"
154 #include <openssl/buffer.h>
155 #include <openssl/rand.h>
156 #include <openssl/objects.h>
157 #include <openssl/evp.h>
158 #include <openssl/md5.h>
159 #ifndef OPENSSL_NO_DH
160 #include <openssl/dh.h>
162 #include <openssl/bn.h>
163 #ifndef OPENSSL_NO_ENGINE
164 #include <openssl/engine.h>
167 static const SSL_METHOD *ssl3_get_client_method(int ver);
168 static int ca_dn_cmp(const X509_NAME * const *a,const X509_NAME * const *b);
170 static const SSL_METHOD *ssl3_get_client_method(int ver)
172 if (ver == SSL3_VERSION)
173 return(SSLv3_client_method());
178 IMPLEMENT_ssl3_meth_func(SSLv3_client_method,
179 ssl_undefined_function,
181 ssl3_get_client_method)
183 int ssl3_connect(SSL *s)
186 unsigned long Time=(unsigned long)time(NULL);
187 void (*cb)(const SSL *ssl,int type,int val)=NULL;
189 int new_state,state,skip=0;
191 RAND_add(&Time,sizeof(Time),0);
195 if (s->info_callback != NULL)
197 else if (s->ctx->info_callback != NULL)
198 cb=s->ctx->info_callback;
201 if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
209 case SSL_ST_RENEGOTIATE:
211 s->state=SSL_ST_CONNECT;
212 s->ctx->stats.sess_connect_renegotiate++;
216 case SSL_ST_BEFORE|SSL_ST_CONNECT:
217 case SSL_ST_OK|SSL_ST_CONNECT:
220 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
222 if ((s->version & 0xff00 ) != 0x0300)
224 SSLerr(SSL_F_SSL3_CONNECT, ERR_R_INTERNAL_ERROR);
229 /* s->version=SSL3_VERSION; */
230 s->type=SSL_ST_CONNECT;
232 if (s->init_buf == NULL)
234 if ((buf=BUF_MEM_new()) == NULL)
239 if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))
248 if (!ssl3_setup_buffers(s)) { ret= -1; goto end; }
250 /* setup buffing BIO */
251 if (!ssl_init_wbio_buffer(s,0)) { ret= -1; goto end; }
253 /* don't push the buffering BIO quite yet */
255 ssl3_init_finished_mac(s);
257 s->state=SSL3_ST_CW_CLNT_HELLO_A;
258 s->ctx->stats.sess_connect++;
262 case SSL3_ST_CW_CLNT_HELLO_A:
263 case SSL3_ST_CW_CLNT_HELLO_B:
266 ret=ssl3_client_hello(s);
267 if (ret <= 0) goto end;
268 s->state=SSL3_ST_CR_SRVR_HELLO_A;
271 /* turn on buffering for the next lot of output */
272 if (s->bbio != s->wbio)
273 s->wbio=BIO_push(s->bbio,s->wbio);
277 case SSL3_ST_CR_SRVR_HELLO_A:
278 case SSL3_ST_CR_SRVR_HELLO_B:
279 ret=ssl3_get_server_hello(s);
280 if (ret <= 0) goto end;
283 s->state=SSL3_ST_CR_FINISHED_A;
285 s->state=SSL3_ST_CR_CERT_A;
289 case SSL3_ST_CR_CERT_A:
290 case SSL3_ST_CR_CERT_B:
291 #ifndef OPENSSL_NO_TLSEXT
292 ret=ssl3_check_finished(s);
293 if (ret <= 0) goto end;
297 if (s->tlsext_ticket_expected)
298 s->state=SSL3_ST_CR_SESSION_TICKET_A;
300 s->state=SSL3_ST_CR_FINISHED_A;
305 /* Check if it is anon DH/ECDH */
307 if (!(s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL) &&
308 !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK))
310 ret=ssl3_get_server_certificate(s);
311 if (ret <= 0) goto end;
312 #ifndef OPENSSL_NO_TLSEXT
313 if (s->tlsext_status_expected)
314 s->state=SSL3_ST_CR_CERT_STATUS_A;
316 s->state=SSL3_ST_CR_KEY_EXCH_A;
321 s->state=SSL3_ST_CR_KEY_EXCH_A;
328 s->state=SSL3_ST_CR_KEY_EXCH_A;
333 case SSL3_ST_CR_KEY_EXCH_A:
334 case SSL3_ST_CR_KEY_EXCH_B:
335 ret=ssl3_get_key_exchange(s);
336 if (ret <= 0) goto end;
337 s->state=SSL3_ST_CR_CERT_REQ_A;
340 /* at this point we check that we have the
341 * required stuff from the server */
342 if (!ssl3_check_cert_and_algorithm(s))
349 case SSL3_ST_CR_CERT_REQ_A:
350 case SSL3_ST_CR_CERT_REQ_B:
351 ret=ssl3_get_certificate_request(s);
352 if (ret <= 0) goto end;
353 s->state=SSL3_ST_CR_SRVR_DONE_A;
357 case SSL3_ST_CR_SRVR_DONE_A:
358 case SSL3_ST_CR_SRVR_DONE_B:
359 ret=ssl3_get_server_done(s);
360 if (ret <= 0) goto end;
361 if (s->s3->tmp.cert_req)
362 s->state=SSL3_ST_CW_CERT_A;
364 s->state=SSL3_ST_CW_KEY_EXCH_A;
369 case SSL3_ST_CW_CERT_A:
370 case SSL3_ST_CW_CERT_B:
371 case SSL3_ST_CW_CERT_C:
372 case SSL3_ST_CW_CERT_D:
373 ret=ssl3_send_client_certificate(s);
374 if (ret <= 0) goto end;
375 s->state=SSL3_ST_CW_KEY_EXCH_A;
379 case SSL3_ST_CW_KEY_EXCH_A:
380 case SSL3_ST_CW_KEY_EXCH_B:
381 ret=ssl3_send_client_key_exchange(s);
382 if (ret <= 0) goto end;
383 /* EAY EAY EAY need to check for DH fix cert
385 /* For TLS, cert_req is set to 2, so a cert chain
386 * of nothing is sent, but no verify packet is sent */
387 /* XXX: For now, we do not support client
388 * authentication in ECDH cipher suites with
389 * ECDH (rather than ECDSA) certificates.
390 * We need to skip the certificate verify
391 * message when client's ECDH public key is sent
392 * inside the client certificate.
394 if (s->s3->tmp.cert_req == 1)
396 s->state=SSL3_ST_CW_CERT_VRFY_A;
400 s->state=SSL3_ST_CW_CHANGE_A;
401 s->s3->change_cipher_spec=0;
403 if (s->s3->flags & TLS1_FLAGS_SKIP_CERT_VERIFY)
405 s->state=SSL3_ST_CW_CHANGE_A;
406 s->s3->change_cipher_spec=0;
412 case SSL3_ST_CW_CERT_VRFY_A:
413 case SSL3_ST_CW_CERT_VRFY_B:
414 ret=ssl3_send_client_verify(s);
415 if (ret <= 0) goto end;
416 s->state=SSL3_ST_CW_CHANGE_A;
418 s->s3->change_cipher_spec=0;
421 case SSL3_ST_CW_CHANGE_A:
422 case SSL3_ST_CW_CHANGE_B:
423 ret=ssl3_send_change_cipher_spec(s,
424 SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B);
425 if (ret <= 0) goto end;
426 s->state=SSL3_ST_CW_FINISHED_A;
429 s->session->cipher=s->s3->tmp.new_cipher;
430 #ifdef OPENSSL_NO_COMP
431 s->session->compress_meth=0;
433 if (s->s3->tmp.new_compression == NULL)
434 s->session->compress_meth=0;
436 s->session->compress_meth=
437 s->s3->tmp.new_compression->id;
439 if (!s->method->ssl3_enc->setup_key_block(s))
445 if (!s->method->ssl3_enc->change_cipher_state(s,
446 SSL3_CHANGE_CIPHER_CLIENT_WRITE))
454 case SSL3_ST_CW_FINISHED_A:
455 case SSL3_ST_CW_FINISHED_B:
456 ret=ssl3_send_finished(s,
457 SSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B,
458 s->method->ssl3_enc->client_finished_label,
459 s->method->ssl3_enc->client_finished_label_len);
460 if (ret <= 0) goto end;
461 s->state=SSL3_ST_CW_FLUSH;
464 s->s3->flags&= ~SSL3_FLAGS_POP_BUFFER;
467 s->s3->tmp.next_state=SSL_ST_OK;
468 if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED)
471 s->s3->flags|=SSL3_FLAGS_POP_BUFFER;
472 s->s3->delay_buf_pop_ret=0;
477 #ifndef OPENSSL_NO_TLSEXT
478 /* Allow NewSessionTicket if ticket expected */
479 if (s->tlsext_ticket_expected)
480 s->s3->tmp.next_state=SSL3_ST_CR_SESSION_TICKET_A;
484 s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A;
489 #ifndef OPENSSL_NO_TLSEXT
490 case SSL3_ST_CR_SESSION_TICKET_A:
491 case SSL3_ST_CR_SESSION_TICKET_B:
492 ret=ssl3_get_new_session_ticket(s);
493 if (ret <= 0) goto end;
494 s->state=SSL3_ST_CR_FINISHED_A;
498 case SSL3_ST_CR_CERT_STATUS_A:
499 case SSL3_ST_CR_CERT_STATUS_B:
500 ret=ssl3_get_cert_status(s);
501 if (ret <= 0) goto end;
502 s->state=SSL3_ST_CR_KEY_EXCH_A;
507 case SSL3_ST_CR_FINISHED_A:
508 case SSL3_ST_CR_FINISHED_B:
510 ret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A,
511 SSL3_ST_CR_FINISHED_B);
512 if (ret <= 0) goto end;
515 s->state=SSL3_ST_CW_CHANGE_A;
521 case SSL3_ST_CW_FLUSH:
522 s->rwstate=SSL_WRITING;
523 if (BIO_flush(s->wbio) <= 0)
528 s->rwstate=SSL_NOTHING;
529 s->state=s->s3->tmp.next_state;
533 /* clean a few things up */
534 ssl3_cleanup_key_block(s);
536 if (s->init_buf != NULL)
538 BUF_MEM_free(s->init_buf);
542 /* If we are not 'joining' the last two packets,
543 * remove the buffering now */
544 if (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER))
545 ssl_free_wbio_buffer(s);
546 /* else do it later in ssl3_write */
551 ssl_update_cache(s,SSL_SESS_CACHE_CLIENT);
552 if (s->hit) s->ctx->stats.sess_hit++;
556 s->handshake_func=ssl3_connect;
557 s->ctx->stats.sess_connect_good++;
559 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);
565 SSLerr(SSL_F_SSL3_CONNECT,SSL_R_UNKNOWN_STATE);
571 /* did we do anything */
572 if (!s->s3->tmp.reuse_message && !skip)
576 if ((ret=BIO_flush(s->wbio)) <= 0)
580 if ((cb != NULL) && (s->state != state))
584 cb(s,SSL_CB_CONNECT_LOOP,1);
595 cb(s,SSL_CB_CONNECT_EXIT,ret);
600 int ssl3_client_hello(SSL *s)
605 unsigned long Time,l;
606 #ifndef OPENSSL_NO_COMP
611 buf=(unsigned char *)s->init_buf->data;
612 if (s->state == SSL3_ST_CW_CLNT_HELLO_A)
614 SSL_SESSION *sess = s->session;
615 if ((sess == NULL) ||
616 (sess->ssl_version != s->version) ||
617 #ifdef OPENSSL_NO_TLSEXT
618 !sess->session_id_length ||
620 (!sess->session_id_length && !sess->tlsext_tick) ||
622 (sess->not_resumable))
624 if (!ssl_get_new_session(s,0))
627 /* else use the pre-loaded session */
629 p=s->s3->client_random;
630 Time=(unsigned long)time(NULL); /* Time */
632 if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0)
635 /* Do the message type and length last */
638 *(p++)=s->version>>8;
639 *(p++)=s->version&0xff;
640 s->client_version=s->version;
643 memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
650 i=s->session->session_id_length;
654 if (i > (int)sizeof(s->session->session_id))
656 SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
659 memcpy(p,s->session->session_id,i);
663 /* Ciphers supported */
664 i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]),0);
667 SSLerr(SSL_F_SSL3_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
674 #ifdef OPENSSL_NO_COMP
678 if ((s->options & SSL_OP_NO_COMPRESSION)
679 || !s->ctx->comp_methods)
682 j=sk_SSL_COMP_num(s->ctx->comp_methods);
686 comp=sk_SSL_COMP_value(s->ctx->comp_methods,i);
690 *(p++)=0; /* Add the NULL method */
692 #ifndef OPENSSL_NO_TLSEXT
694 if (ssl_prepare_clienthello_tlsext(s) <= 0)
696 SSLerr(SSL_F_SSL3_CLIENT_HELLO,SSL_R_CLIENTHELLO_TLSEXT);
699 if ((p = ssl_add_clienthello_tlsext(s, p, buf+SSL3_RT_MAX_PLAIN_LENGTH)) == NULL)
701 SSLerr(SSL_F_SSL3_CLIENT_HELLO,ERR_R_INTERNAL_ERROR);
708 *(d++)=SSL3_MT_CLIENT_HELLO;
711 s->state=SSL3_ST_CW_CLNT_HELLO_B;
712 /* number of bytes to write */
717 /* SSL3_ST_CW_CLNT_HELLO_B */
718 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
723 int ssl3_get_server_hello(SSL *s)
725 STACK_OF(SSL_CIPHER) *sk;
731 #ifndef OPENSSL_NO_COMP
735 n=s->method->ssl_get_message(s,
736 SSL3_ST_CR_SRVR_HELLO_A,
737 SSL3_ST_CR_SRVR_HELLO_B,
742 if (!ok) return((int)n);
744 if ( SSL_version(s) == DTLS1_VERSION || SSL_version(s) == DTLS1_BAD_VER)
746 if ( s->s3->tmp.message_type == DTLS1_MT_HELLO_VERIFY_REQUEST)
748 if ( s->d1->send_cookie == 0)
750 s->s3->tmp.reuse_message = 1;
753 else /* already sent a cookie */
755 al=SSL_AD_UNEXPECTED_MESSAGE;
756 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);
762 if ( s->s3->tmp.message_type != SSL3_MT_SERVER_HELLO)
764 al=SSL_AD_UNEXPECTED_MESSAGE;
765 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);
769 d=p=(unsigned char *)s->init_msg;
771 if ((p[0] != (s->version>>8)) || (p[1] != (s->version&0xff)))
773 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_SSL_VERSION);
774 s->version=(s->version&0xff00)|p[1];
775 al=SSL_AD_PROTOCOL_VERSION;
780 /* load the server hello data */
781 /* load the server random */
782 memcpy(s->s3->server_random,p,SSL3_RANDOM_SIZE);
785 /* get the session-id */
788 if ((j > sizeof s->session->session_id) || (j > SSL3_SESSION_ID_SIZE))
790 al=SSL_AD_ILLEGAL_PARAMETER;
791 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SSL3_SESSION_ID_TOO_LONG);
795 #ifndef OPENSSL_NO_TLSEXT
796 /* check if we want to resume the session based on external pre-shared secret */
797 if (s->version >= TLS1_VERSION && s->tls_session_secret_cb)
799 SSL_CIPHER *pref_cipher=NULL;
800 s->session->master_key_length=sizeof(s->session->master_key);
801 if (s->tls_session_secret_cb(s, s->session->master_key,
802 &s->session->master_key_length,
804 s->tls_session_secret_cb_arg))
806 s->session->cipher = pref_cipher ?
807 pref_cipher : ssl_get_cipher_by_char(s, p+j);
810 #endif /* OPENSSL_NO_TLSEXT */
812 if (j != 0 && j == s->session->session_id_length
813 && memcmp(p,s->session->session_id,j) == 0)
815 if(s->sid_ctx_length != s->session->sid_ctx_length
816 || memcmp(s->session->sid_ctx,s->sid_ctx,s->sid_ctx_length))
818 /* actually a client application bug */
819 al=SSL_AD_ILLEGAL_PARAMETER;
820 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);
825 else /* a miss or crap from the other end */
827 /* If we were trying for session-id reuse, make a new
828 * SSL_SESSION so we don't stuff up other people */
830 if (s->session->session_id_length > 0)
832 if (!ssl_get_new_session(s,0))
834 al=SSL_AD_INTERNAL_ERROR;
838 s->session->session_id_length=j;
839 memcpy(s->session->session_id,p,j); /* j could be 0 */
842 c=ssl_get_cipher_by_char(s,p);
846 al=SSL_AD_ILLEGAL_PARAMETER;
847 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNKNOWN_CIPHER_RETURNED);
850 p+=ssl_put_cipher_by_char(s,NULL,NULL);
852 sk=ssl_get_ciphers_by_id(s);
853 i=sk_SSL_CIPHER_find(sk,c);
856 /* we did not say we would use this cipher */
857 al=SSL_AD_ILLEGAL_PARAMETER;
858 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_CIPHER_RETURNED);
862 /* Depending on the session caching (internal/external), the cipher
863 and/or cipher_id values may not be set. Make sure that
864 cipher_id is set and use it for comparison. */
865 if (s->session->cipher)
866 s->session->cipher_id = s->session->cipher->id;
867 if (s->hit && (s->session->cipher_id != c->id))
870 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG))
872 al=SSL_AD_ILLEGAL_PARAMETER;
873 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED);
877 s->s3->tmp.new_cipher=c;
878 if (!ssl3_digest_cached_records(s))
881 /* lets get the compression algorithm */
883 #ifdef OPENSSL_NO_COMP
886 al=SSL_AD_ILLEGAL_PARAMETER;
887 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
890 /* If compression is disabled we'd better not try to resume a session
893 if (s->session->compress_meth != 0)
895 al=SSL_AD_INTERNAL_ERROR;
896 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_INCONSISTENT_COMPRESSION);
901 if (s->hit && j != s->session->compress_meth)
903 al=SSL_AD_ILLEGAL_PARAMETER;
904 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_OLD_SESSION_COMPRESSION_ALGORITHM_NOT_RETURNED);
909 else if (s->options & SSL_OP_NO_COMPRESSION)
911 al=SSL_AD_ILLEGAL_PARAMETER;
912 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_COMPRESSION_DISABLED);
916 comp=ssl3_comp_find(s->ctx->comp_methods,j);
918 if ((j != 0) && (comp == NULL))
920 al=SSL_AD_ILLEGAL_PARAMETER;
921 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
926 s->s3->tmp.new_compression=comp;
930 #ifndef OPENSSL_NO_TLSEXT
932 if (s->version >= SSL3_VERSION)
934 if (!ssl_parse_serverhello_tlsext(s,&p,d,n, &al))
936 /* 'al' set by ssl_parse_serverhello_tlsext */
937 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_PARSE_TLSEXT);
940 if (ssl_check_serverhello_tlsext(s) <= 0)
942 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SERVERHELLO_TLSEXT);
950 /* wrong packet length */
951 al=SSL_AD_DECODE_ERROR;
952 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_PACKET_LENGTH);
958 ssl3_send_alert(s,SSL3_AL_FATAL,al);
963 int ssl3_get_server_certificate(SSL *s)
966 unsigned long n,nc,llen,l;
968 const unsigned char *q,*p;
970 STACK_OF(X509) *sk=NULL;
973 int need_cert = 1; /* VRS: 0=> will allow null cert if auth == KRB5 */
975 n=s->method->ssl_get_message(s,
982 if (!ok) return((int)n);
984 if (s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE)
986 s->s3->tmp.reuse_message=1;
990 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE)
992 al=SSL_AD_UNEXPECTED_MESSAGE;
993 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_BAD_MESSAGE_TYPE);
996 p=d=(unsigned char *)s->init_msg;
998 if ((sk=sk_X509_new_null()) == NULL)
1000 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
1007 al=SSL_AD_DECODE_ERROR;
1008 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_LENGTH_MISMATCH);
1011 for (nc=0; nc<llen; )
1014 if ((l+nc+3) > llen)
1016 al=SSL_AD_DECODE_ERROR;
1017 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
1022 x=d2i_X509(NULL,&q,l);
1025 al=SSL_AD_BAD_CERTIFICATE;
1026 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_ASN1_LIB);
1031 al=SSL_AD_DECODE_ERROR;
1032 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
1035 if (!sk_X509_push(sk,x))
1037 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
1045 i=ssl_verify_cert_chain(s,sk);
1046 if ((s->verify_mode != SSL_VERIFY_NONE) && (i <= 0)
1047 #ifndef OPENSSL_NO_KRB5
1048 && !((s->s3->tmp.new_cipher->algorithm_mkey & SSL_kKRB5) &&
1049 (s->s3->tmp.new_cipher->algorithm_auth & SSL_aKRB5))
1050 #endif /* OPENSSL_NO_KRB5 */
1053 al=ssl_verify_alarm_type(s->verify_result);
1054 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED);
1057 ERR_clear_error(); /* but we keep s->verify_result */
1059 sc=ssl_sess_cert_new();
1060 if (sc == NULL) goto err;
1062 if (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert);
1063 s->session->sess_cert=sc;
1066 /* Inconsistency alert: cert_chain does include the peer's
1067 * certificate, which we don't include in s3_srvr.c */
1068 x=sk_X509_value(sk,0);
1070 /* VRS 19990621: possible memory leak; sk=null ==> !sk_pop_free() @end*/
1072 pkey=X509_get_pubkey(x);
1074 /* VRS: allow null cert if auth == KRB5 */
1075 need_cert = ((s->s3->tmp.new_cipher->algorithm_mkey & SSL_kKRB5) &&
1076 (s->s3->tmp.new_cipher->algorithm_auth & SSL_aKRB5))
1080 printf("pkey,x = %p, %p\n", pkey,x);
1081 printf("ssl_cert_type(x,pkey) = %d\n", ssl_cert_type(x,pkey));
1082 printf("cipher, alg, nc = %s, %lx, %lx, %d\n", s->s3->tmp.new_cipher->name,
1083 s->s3->tmp.new_cipher->algorithm_mkey, s->s3->tmp.new_cipher->algorithm_auth, need_cert);
1084 #endif /* KSSL_DEBUG */
1086 if (need_cert && ((pkey == NULL) || EVP_PKEY_missing_parameters(pkey)))
1090 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
1091 SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS);
1095 i=ssl_cert_type(x,pkey);
1096 if (need_cert && i < 0)
1100 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
1101 SSL_R_UNKNOWN_CERTIFICATE_TYPE);
1107 sc->peer_cert_type=i;
1108 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
1109 /* Why would the following ever happen?
1110 * We just created sc a couple of lines ago. */
1111 if (sc->peer_pkeys[i].x509 != NULL)
1112 X509_free(sc->peer_pkeys[i].x509);
1113 sc->peer_pkeys[i].x509=x;
1114 sc->peer_key= &(sc->peer_pkeys[i]);
1116 if (s->session->peer != NULL)
1117 X509_free(s->session->peer);
1118 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
1123 sc->peer_cert_type=i;
1126 if (s->session->peer != NULL)
1127 X509_free(s->session->peer);
1128 s->session->peer=NULL;
1130 s->session->verify_result = s->verify_result;
1138 ssl3_send_alert(s,SSL3_AL_FATAL,al);
1141 EVP_PKEY_free(pkey);
1143 sk_X509_pop_free(sk,X509_free);
1147 int ssl3_get_key_exchange(SSL *s)
1149 #ifndef OPENSSL_NO_RSA
1150 unsigned char *q,md_buf[EVP_MAX_MD_SIZE*2];
1153 unsigned char *param,*p;
1154 int al,i,j,param_len,ok;
1156 EVP_PKEY *pkey=NULL;
1157 #ifndef OPENSSL_NO_RSA
1160 #ifndef OPENSSL_NO_DH
1163 #ifndef OPENSSL_NO_ECDH
1164 EC_KEY *ecdh = NULL;
1165 BN_CTX *bn_ctx = NULL;
1166 EC_POINT *srvr_ecpoint = NULL;
1168 int encoded_pt_len = 0;
1171 /* use same message size as in ssl3_get_certificate_request()
1172 * as ServerKeyExchange message may be skipped */
1173 n=s->method->ssl_get_message(s,
1174 SSL3_ST_CR_KEY_EXCH_A,
1175 SSL3_ST_CR_KEY_EXCH_B,
1179 if (!ok) return((int)n);
1181 if (s->s3->tmp.message_type != SSL3_MT_SERVER_KEY_EXCHANGE)
1183 #ifndef OPENSSL_NO_PSK
1184 /* In plain PSK ciphersuite, ServerKeyExchange can be
1185 omitted if no identity hint is sent. Set
1186 session->sess_cert anyway to avoid problems
1188 if (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)
1190 s->session->sess_cert=ssl_sess_cert_new();
1191 if (s->ctx->psk_identity_hint)
1192 OPENSSL_free(s->ctx->psk_identity_hint);
1193 s->ctx->psk_identity_hint = NULL;
1196 s->s3->tmp.reuse_message=1;
1200 param=p=(unsigned char *)s->init_msg;
1201 if (s->session->sess_cert != NULL)
1203 #ifndef OPENSSL_NO_RSA
1204 if (s->session->sess_cert->peer_rsa_tmp != NULL)
1206 RSA_free(s->session->sess_cert->peer_rsa_tmp);
1207 s->session->sess_cert->peer_rsa_tmp=NULL;
1210 #ifndef OPENSSL_NO_DH
1211 if (s->session->sess_cert->peer_dh_tmp)
1213 DH_free(s->session->sess_cert->peer_dh_tmp);
1214 s->session->sess_cert->peer_dh_tmp=NULL;
1217 #ifndef OPENSSL_NO_ECDH
1218 if (s->session->sess_cert->peer_ecdh_tmp)
1220 EC_KEY_free(s->session->sess_cert->peer_ecdh_tmp);
1221 s->session->sess_cert->peer_ecdh_tmp=NULL;
1227 s->session->sess_cert=ssl_sess_cert_new();
1231 alg_k=s->s3->tmp.new_cipher->algorithm_mkey;
1232 alg_a=s->s3->tmp.new_cipher->algorithm_auth;
1233 EVP_MD_CTX_init(&md_ctx);
1235 #ifndef OPENSSL_NO_PSK
1236 if (alg_k & SSL_kPSK)
1238 char tmp_id_hint[PSK_MAX_IDENTITY_LEN+1];
1240 al=SSL_AD_HANDSHAKE_FAILURE;
1243 /* Store PSK identity hint for later use, hint is used
1244 * in ssl3_send_client_key_exchange. Assume that the
1245 * maximum length of a PSK identity hint can be as
1246 * long as the maximum length of a PSK identity. */
1247 if (i > PSK_MAX_IDENTITY_LEN)
1249 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,
1250 SSL_R_DATA_LENGTH_TOO_LONG);
1255 al=SSL_AD_DECODE_ERROR;
1256 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,
1257 SSL_R_BAD_PSK_IDENTITY_HINT_LENGTH);
1260 /* If received PSK identity hint contains NULL
1261 * characters, the hint is truncated from the first
1262 * NULL. p may not be ending with NULL, so create a
1263 * NULL-terminated string. */
1264 memcpy(tmp_id_hint, p, i);
1265 memset(tmp_id_hint+i, 0, PSK_MAX_IDENTITY_LEN+1-i);
1266 if (s->ctx->psk_identity_hint != NULL)
1267 OPENSSL_free(s->ctx->psk_identity_hint);
1268 s->ctx->psk_identity_hint = BUF_strdup(tmp_id_hint);
1269 if (s->ctx->psk_identity_hint == NULL)
1271 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_MALLOC_FAILURE);
1279 #endif /* !OPENSSL_NO_PSK */
1280 #ifndef OPENSSL_NO_RSA
1281 if (alg_k & SSL_kRSA)
1283 if ((rsa=RSA_new()) == NULL)
1285 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1292 al=SSL_AD_DECODE_ERROR;
1293 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_MODULUS_LENGTH);
1296 if (!(rsa->n=BN_bin2bn(p,i,rsa->n)))
1298 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1307 al=SSL_AD_DECODE_ERROR;
1308 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_E_LENGTH);
1311 if (!(rsa->e=BN_bin2bn(p,i,rsa->e)))
1313 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1319 /* this should be because we are using an export cipher */
1320 if (alg_a & SSL_aRSA)
1321 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1324 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1327 s->session->sess_cert->peer_rsa_tmp=rsa;
1330 #else /* OPENSSL_NO_RSA */
1334 #ifndef OPENSSL_NO_DH
1335 else if (alg_k & SSL_kEDH)
1337 if ((dh=DH_new()) == NULL)
1339 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_DH_LIB);
1346 al=SSL_AD_DECODE_ERROR;
1347 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_P_LENGTH);
1350 if (!(dh->p=BN_bin2bn(p,i,NULL)))
1352 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1361 al=SSL_AD_DECODE_ERROR;
1362 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_G_LENGTH);
1365 if (!(dh->g=BN_bin2bn(p,i,NULL)))
1367 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1376 al=SSL_AD_DECODE_ERROR;
1377 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_PUB_KEY_LENGTH);
1380 if (!(dh->pub_key=BN_bin2bn(p,i,NULL)))
1382 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1388 #ifndef OPENSSL_NO_RSA
1389 if (alg_a & SSL_aRSA)
1390 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1395 #ifndef OPENSSL_NO_DSA
1396 else if (alg_a & SSL_aDSS)
1397 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].x509);
1399 /* else anonymous DH, so no certificate or pkey. */
1401 s->session->sess_cert->peer_dh_tmp=dh;
1404 else if ((alg_k & SSL_kDHr) || (alg_k & SSL_kDHd))
1406 al=SSL_AD_ILLEGAL_PARAMETER;
1407 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
1410 #endif /* !OPENSSL_NO_DH */
1412 #ifndef OPENSSL_NO_ECDH
1413 else if (alg_k & SSL_kEECDH)
1416 const EC_GROUP *group;
1418 if ((ecdh=EC_KEY_new()) == NULL)
1420 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1424 /* Extract elliptic curve parameters and the
1425 * server's ephemeral ECDH public key.
1426 * Keep accumulating lengths of various components in
1427 * param_len and make sure it never exceeds n.
1430 /* XXX: For now we only support named (not generic) curves
1431 * and the ECParameters in this case is just three bytes.
1434 if ((param_len > n) ||
1435 (*p != NAMED_CURVE_TYPE) ||
1436 ((curve_nid = tls1_ec_curve_id2nid(*(p + 2))) == 0))
1438 al=SSL_AD_INTERNAL_ERROR;
1439 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS);
1443 ngroup = EC_GROUP_new_by_curve_name(curve_nid);
1446 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
1449 if (EC_KEY_set_group(ecdh, ngroup) == 0)
1451 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
1454 EC_GROUP_free(ngroup);
1456 group = EC_KEY_get0_group(ecdh);
1458 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
1459 (EC_GROUP_get_degree(group) > 163))
1461 al=SSL_AD_EXPORT_RESTRICTION;
1462 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
1468 /* Next, get the encoded ECPoint */
1469 if (((srvr_ecpoint = EC_POINT_new(group)) == NULL) ||
1470 ((bn_ctx = BN_CTX_new()) == NULL))
1472 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1476 encoded_pt_len = *p; /* length of encoded point */
1478 param_len += (1 + encoded_pt_len);
1479 if ((param_len > n) ||
1480 (EC_POINT_oct2point(group, srvr_ecpoint,
1481 p, encoded_pt_len, bn_ctx) == 0))
1483 al=SSL_AD_DECODE_ERROR;
1484 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_ECPOINT);
1491 /* The ECC/TLS specification does not mention
1492 * the use of DSA to sign ECParameters in the server
1493 * key exchange message. We do support RSA and ECDSA.
1496 #ifndef OPENSSL_NO_RSA
1497 else if (alg_a & SSL_aRSA)
1498 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1500 #ifndef OPENSSL_NO_ECDSA
1501 else if (alg_a & SSL_aECDSA)
1502 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
1504 /* else anonymous ECDH, so no certificate or pkey. */
1505 EC_KEY_set_public_key(ecdh, srvr_ecpoint);
1506 s->session->sess_cert->peer_ecdh_tmp=ecdh;
1508 BN_CTX_free(bn_ctx);
1509 EC_POINT_free(srvr_ecpoint);
1510 srvr_ecpoint = NULL;
1514 al=SSL_AD_UNEXPECTED_MESSAGE;
1515 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNEXPECTED_MESSAGE);
1518 #endif /* !OPENSSL_NO_ECDH */
1521 /* p points to the next byte, there are 'n' bytes left */
1523 /* if it was signed, check the signature */
1528 j=EVP_PKEY_size(pkey);
1530 if ((i != n) || (n > j) || (n <= 0))
1532 /* wrong packet length */
1533 al=SSL_AD_DECODE_ERROR;
1534 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_WRONG_SIGNATURE_LENGTH);
1538 #ifndef OPENSSL_NO_RSA
1539 if (pkey->type == EVP_PKEY_RSA)
1545 for (num=2; num > 0; num--)
1547 EVP_DigestInit_ex(&md_ctx,(num == 2)
1548 ?s->ctx->md5:s->ctx->sha1, NULL);
1549 EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1550 EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1551 EVP_DigestUpdate(&md_ctx,param,param_len);
1552 EVP_DigestFinal_ex(&md_ctx,q,(unsigned int *)&i);
1556 i=RSA_verify(NID_md5_sha1, md_buf, j, p, n,
1560 al=SSL_AD_DECRYPT_ERROR;
1561 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_DECRYPT);
1567 al=SSL_AD_DECRYPT_ERROR;
1568 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1574 #ifndef OPENSSL_NO_DSA
1575 if (pkey->type == EVP_PKEY_DSA)
1578 EVP_VerifyInit_ex(&md_ctx,EVP_dss1(), NULL);
1579 EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1580 EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1581 EVP_VerifyUpdate(&md_ctx,param,param_len);
1582 if (EVP_VerifyFinal(&md_ctx,p,(int)n,pkey) <= 0)
1585 al=SSL_AD_DECRYPT_ERROR;
1586 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1592 #ifndef OPENSSL_NO_ECDSA
1593 if (pkey->type == EVP_PKEY_EC)
1595 /* let's do ECDSA */
1596 EVP_VerifyInit_ex(&md_ctx,EVP_ecdsa(), NULL);
1597 EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1598 EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1599 EVP_VerifyUpdate(&md_ctx,param,param_len);
1600 if (EVP_VerifyFinal(&md_ctx,p,(int)n,pkey) <= 0)
1603 al=SSL_AD_DECRYPT_ERROR;
1604 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1611 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1617 if (!(alg_a & SSL_aNULL) && !(alg_k & SSL_kPSK))
1618 /* aNULL or kPSK do not need public keys */
1620 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1623 /* still data left over */
1626 al=SSL_AD_DECODE_ERROR;
1627 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_EXTRA_DATA_IN_MESSAGE);
1631 EVP_PKEY_free(pkey);
1632 EVP_MD_CTX_cleanup(&md_ctx);
1635 ssl3_send_alert(s,SSL3_AL_FATAL,al);
1637 EVP_PKEY_free(pkey);
1638 #ifndef OPENSSL_NO_RSA
1642 #ifndef OPENSSL_NO_DH
1646 #ifndef OPENSSL_NO_ECDH
1647 BN_CTX_free(bn_ctx);
1648 EC_POINT_free(srvr_ecpoint);
1652 EVP_MD_CTX_cleanup(&md_ctx);
1656 int ssl3_get_certificate_request(SSL *s)
1659 unsigned long n,nc,l;
1660 unsigned int llen,ctype_num,i;
1662 const unsigned char *p,*q;
1664 STACK_OF(X509_NAME) *ca_sk=NULL;
1666 n=s->method->ssl_get_message(s,
1667 SSL3_ST_CR_CERT_REQ_A,
1668 SSL3_ST_CR_CERT_REQ_B,
1673 if (!ok) return((int)n);
1675 s->s3->tmp.cert_req=0;
1677 if (s->s3->tmp.message_type == SSL3_MT_SERVER_DONE)
1679 s->s3->tmp.reuse_message=1;
1683 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE_REQUEST)
1685 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
1686 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_WRONG_MESSAGE_TYPE);
1690 /* TLS does not like anon-DH with client cert */
1691 if (s->version > SSL3_VERSION)
1693 if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL)
1695 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
1696 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER);
1701 p=d=(unsigned char *)s->init_msg;
1703 if ((ca_sk=sk_X509_NAME_new(ca_dn_cmp)) == NULL)
1705 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
1709 /* get the certificate types */
1711 if (ctype_num > SSL3_CT_NUMBER)
1712 ctype_num=SSL3_CT_NUMBER;
1713 for (i=0; i<ctype_num; i++)
1714 s->s3->tmp.ctype[i]= p[i];
1717 /* get the CA RDNs */
1722 out=fopen("/tmp/vsign.der","w");
1723 fwrite(p,1,llen,out);
1728 if ((llen+ctype_num+2+1) != n)
1730 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1731 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_LENGTH_MISMATCH);
1735 for (nc=0; nc<llen; )
1738 if ((l+nc+2) > llen)
1740 if ((s->options & SSL_OP_NETSCAPE_CA_DN_BUG))
1741 goto cont; /* netscape bugs */
1742 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1743 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_TOO_LONG);
1749 if ((xn=d2i_X509_NAME(NULL,&q,l)) == NULL)
1751 /* If netscape tolerance is on, ignore errors */
1752 if (s->options & SSL_OP_NETSCAPE_CA_DN_BUG)
1756 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1757 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_ASN1_LIB);
1764 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1765 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_LENGTH_MISMATCH);
1768 if (!sk_X509_NAME_push(ca_sk,xn))
1770 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
1784 /* we should setup a certificate to return.... */
1785 s->s3->tmp.cert_req=1;
1786 s->s3->tmp.ctype_num=ctype_num;
1787 if (s->s3->tmp.ca_names != NULL)
1788 sk_X509_NAME_pop_free(s->s3->tmp.ca_names,X509_NAME_free);
1789 s->s3->tmp.ca_names=ca_sk;
1794 if (ca_sk != NULL) sk_X509_NAME_pop_free(ca_sk,X509_NAME_free);
1798 static int ca_dn_cmp(const X509_NAME * const *a, const X509_NAME * const *b)
1800 return(X509_NAME_cmp(*a,*b));
1802 #ifndef OPENSSL_NO_TLSEXT
1803 int ssl3_get_new_session_ticket(SSL *s)
1805 int ok,al,ret=0, ticklen;
1807 const unsigned char *p;
1810 n=s->method->ssl_get_message(s,
1811 SSL3_ST_CR_SESSION_TICKET_A,
1812 SSL3_ST_CR_SESSION_TICKET_B,
1820 if (s->s3->tmp.message_type == SSL3_MT_FINISHED)
1822 s->s3->tmp.reuse_message=1;
1825 if (s->s3->tmp.message_type != SSL3_MT_NEWSESSION_TICKET)
1827 al=SSL_AD_UNEXPECTED_MESSAGE;
1828 SSLerr(SSL_F_SSL3_GET_NEW_SESSION_TICKET,SSL_R_BAD_MESSAGE_TYPE);
1833 /* need at least ticket_lifetime_hint + ticket length */
1834 al = SSL3_AL_FATAL,SSL_AD_DECODE_ERROR;
1835 SSLerr(SSL_F_SSL3_GET_NEW_SESSION_TICKET,SSL_R_LENGTH_MISMATCH);
1839 p=d=(unsigned char *)s->init_msg;
1840 n2l(p, s->session->tlsext_tick_lifetime_hint);
1842 /* ticket_lifetime_hint + ticket_length + ticket */
1843 if (ticklen + 6 != n)
1845 al = SSL3_AL_FATAL,SSL_AD_DECODE_ERROR;
1846 SSLerr(SSL_F_SSL3_GET_NEW_SESSION_TICKET,SSL_R_LENGTH_MISMATCH);
1849 if (s->session->tlsext_tick)
1851 OPENSSL_free(s->session->tlsext_tick);
1852 s->session->tlsext_ticklen = 0;
1854 s->session->tlsext_tick = OPENSSL_malloc(ticklen);
1855 if (!s->session->tlsext_tick)
1857 SSLerr(SSL_F_SSL3_GET_NEW_SESSION_TICKET,ERR_R_MALLOC_FAILURE);
1860 memcpy(s->session->tlsext_tick, p, ticklen);
1861 s->session->tlsext_ticklen = ticklen;
1862 /* There are two ways to detect a resumed ticket sesion.
1863 * One is to set an appropriate session ID and then the server
1864 * must return a match in ServerHello. This allows the normal
1865 * client session ID matching to work and we know much
1866 * earlier that the ticket has been accepted.
1868 * The other way is to set zero length session ID when the
1869 * ticket is presented and rely on the handshake to determine
1870 * session resumption.
1872 * We choose the former approach because this fits in with
1873 * assumptions elsewhere in OpenSSL. The session ID is set
1874 * to the SHA256 (or SHA1 is SHA256 is disabled) hash of the
1877 EVP_Digest(p, ticklen,
1878 s->session->session_id, &s->session->session_id_length,
1879 #ifndef OPENSSL_NO_SHA256
1880 EVP_sha256(), NULL);
1887 ssl3_send_alert(s,SSL3_AL_FATAL,al);
1892 int ssl3_get_cert_status(SSL *s)
1895 unsigned long resplen,n;
1896 const unsigned char *p;
1898 n=s->method->ssl_get_message(s,
1899 SSL3_ST_CR_CERT_STATUS_A,
1900 SSL3_ST_CR_CERT_STATUS_B,
1901 SSL3_MT_CERTIFICATE_STATUS,
1905 if (!ok) return((int)n);
1908 /* need at least status type + length */
1909 al = SSL_AD_DECODE_ERROR;
1910 SSLerr(SSL_F_SSL3_GET_CERT_STATUS,SSL_R_LENGTH_MISMATCH);
1913 p = (unsigned char *)s->init_msg;
1914 if (*p++ != TLSEXT_STATUSTYPE_ocsp)
1916 al = SSL_AD_DECODE_ERROR;
1917 SSLerr(SSL_F_SSL3_GET_CERT_STATUS,SSL_R_UNSUPPORTED_STATUS_TYPE);
1921 if (resplen + 4 != n)
1923 al = SSL_AD_DECODE_ERROR;
1924 SSLerr(SSL_F_SSL3_GET_CERT_STATUS,SSL_R_LENGTH_MISMATCH);
1927 if (s->tlsext_ocsp_resp)
1928 OPENSSL_free(s->tlsext_ocsp_resp);
1929 s->tlsext_ocsp_resp = BUF_memdup(p, resplen);
1930 if (!s->tlsext_ocsp_resp)
1932 al = SSL_AD_INTERNAL_ERROR;
1933 SSLerr(SSL_F_SSL3_GET_CERT_STATUS,ERR_R_MALLOC_FAILURE);
1936 s->tlsext_ocsp_resplen = resplen;
1937 if (s->ctx->tlsext_status_cb)
1940 ret = s->ctx->tlsext_status_cb(s, s->ctx->tlsext_status_arg);
1943 al = SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE;
1944 SSLerr(SSL_F_SSL3_GET_CERT_STATUS,SSL_R_INVALID_STATUS_RESPONSE);
1949 al = SSL_AD_INTERNAL_ERROR;
1950 SSLerr(SSL_F_SSL3_GET_CERT_STATUS,ERR_R_MALLOC_FAILURE);
1956 ssl3_send_alert(s,SSL3_AL_FATAL,al);
1961 int ssl3_get_server_done(SSL *s)
1966 n=s->method->ssl_get_message(s,
1967 SSL3_ST_CR_SRVR_DONE_A,
1968 SSL3_ST_CR_SRVR_DONE_B,
1969 SSL3_MT_SERVER_DONE,
1970 30, /* should be very small, like 0 :-) */
1973 if (!ok) return((int)n);
1976 /* should contain no data */
1977 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1978 SSLerr(SSL_F_SSL3_GET_SERVER_DONE,SSL_R_LENGTH_MISMATCH);
1986 int ssl3_send_client_key_exchange(SSL *s)
1988 unsigned char *p,*d;
1990 unsigned long alg_k;
1991 #ifndef OPENSSL_NO_RSA
1993 EVP_PKEY *pkey=NULL;
1995 #ifndef OPENSSL_NO_KRB5
1997 #endif /* OPENSSL_NO_KRB5 */
1998 #ifndef OPENSSL_NO_ECDH
1999 EC_KEY *clnt_ecdh = NULL;
2000 const EC_POINT *srvr_ecpoint = NULL;
2001 EVP_PKEY *srvr_pub_pkey = NULL;
2002 unsigned char *encodedPoint = NULL;
2003 int encoded_pt_len = 0;
2004 BN_CTX * bn_ctx = NULL;
2007 if (s->state == SSL3_ST_CW_KEY_EXCH_A)
2009 d=(unsigned char *)s->init_buf->data;
2012 alg_k=s->s3->tmp.new_cipher->algorithm_mkey;
2014 /* Fool emacs indentation */
2016 #ifndef OPENSSL_NO_RSA
2017 else if (alg_k & SSL_kRSA)
2020 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
2022 if (s->session->sess_cert->peer_rsa_tmp != NULL)
2023 rsa=s->session->sess_cert->peer_rsa_tmp;
2026 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
2027 if ((pkey == NULL) ||
2028 (pkey->type != EVP_PKEY_RSA) ||
2029 (pkey->pkey.rsa == NULL))
2031 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
2035 EVP_PKEY_free(pkey);
2038 tmp_buf[0]=s->client_version>>8;
2039 tmp_buf[1]=s->client_version&0xff;
2040 if (RAND_bytes(&(tmp_buf[2]),sizeof tmp_buf-2) <= 0)
2043 s->session->master_key_length=sizeof tmp_buf;
2046 /* Fix buf for TLS and beyond */
2047 if (s->version > SSL3_VERSION)
2049 n=RSA_public_encrypt(sizeof tmp_buf,
2050 tmp_buf,p,rsa,RSA_PKCS1_PADDING);
2052 if (s->options & SSL_OP_PKCS1_CHECK_1) p[1]++;
2053 if (s->options & SSL_OP_PKCS1_CHECK_2) tmp_buf[0]=0x70;
2057 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_BAD_RSA_ENCRYPT);
2061 /* Fix buf for TLS and beyond */
2062 if (s->version > SSL3_VERSION)
2068 s->session->master_key_length=
2069 s->method->ssl3_enc->generate_master_secret(s,
2070 s->session->master_key,
2071 tmp_buf,sizeof tmp_buf);
2072 OPENSSL_cleanse(tmp_buf,sizeof tmp_buf);
2075 #ifndef OPENSSL_NO_KRB5
2076 else if (alg_k & SSL_kKRB5)
2078 krb5_error_code krb5rc;
2079 KSSL_CTX *kssl_ctx = s->kssl_ctx;
2080 /* krb5_data krb5_ap_req; */
2081 krb5_data *enc_ticket;
2082 krb5_data authenticator, *authp = NULL;
2083 EVP_CIPHER_CTX ciph_ctx;
2084 const EVP_CIPHER *enc = NULL;
2085 unsigned char iv[EVP_MAX_IV_LENGTH];
2086 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
2087 unsigned char epms[SSL_MAX_MASTER_KEY_LENGTH
2088 + EVP_MAX_IV_LENGTH];
2089 int padl, outl = sizeof(epms);
2091 EVP_CIPHER_CTX_init(&ciph_ctx);
2094 printf("ssl3_send_client_key_exchange(%lx & %lx)\n",
2096 #endif /* KSSL_DEBUG */
2100 if (KRB5SENDAUTH) authp = &authenticator;
2101 #endif /* KRB5SENDAUTH */
2103 krb5rc = kssl_cget_tkt(kssl_ctx, &enc_ticket, authp,
2105 enc = kssl_map_enc(kssl_ctx->enctype);
2110 printf("kssl_cget_tkt rtn %d\n", krb5rc);
2111 if (krb5rc && kssl_err.text)
2112 printf("kssl_cget_tkt kssl_err=%s\n", kssl_err.text);
2114 #endif /* KSSL_DEBUG */
2118 ssl3_send_alert(s,SSL3_AL_FATAL,
2119 SSL_AD_HANDSHAKE_FAILURE);
2120 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2125 /* 20010406 VRS - Earlier versions used KRB5 AP_REQ
2126 ** in place of RFC 2712 KerberosWrapper, as in:
2128 ** Send ticket (copy to *p, set n = length)
2129 ** n = krb5_ap_req.length;
2130 ** memcpy(p, krb5_ap_req.data, krb5_ap_req.length);
2131 ** if (krb5_ap_req.data)
2132 ** kssl_krb5_free_data_contents(NULL,&krb5_ap_req);
2134 ** Now using real RFC 2712 KerberosWrapper
2135 ** (Thanks to Simon Wilkinson <sxw@sxw.org.uk>)
2136 ** Note: 2712 "opaque" types are here replaced
2137 ** with a 2-byte length followed by the value.
2139 ** KerberosWrapper= xx xx asn1ticket 0 0 xx xx encpms
2140 ** Where "xx xx" = length bytes. Shown here with
2141 ** optional authenticator omitted.
2144 /* KerberosWrapper.Ticket */
2145 s2n(enc_ticket->length,p);
2146 memcpy(p, enc_ticket->data, enc_ticket->length);
2147 p+= enc_ticket->length;
2148 n = enc_ticket->length + 2;
2150 /* KerberosWrapper.Authenticator */
2151 if (authp && authp->length)
2153 s2n(authp->length,p);
2154 memcpy(p, authp->data, authp->length);
2156 n+= authp->length + 2;
2164 s2n(0,p);/* null authenticator length */
2168 tmp_buf[0]=s->client_version>>8;
2169 tmp_buf[1]=s->client_version&0xff;
2170 if (RAND_bytes(&(tmp_buf[2]),sizeof tmp_buf-2) <= 0)
2173 /* 20010420 VRS. Tried it this way; failed.
2174 ** EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,NULL);
2175 ** EVP_CIPHER_CTX_set_key_length(&ciph_ctx,
2176 ** kssl_ctx->length);
2177 ** EVP_EncryptInit_ex(&ciph_ctx,NULL, key,iv);
2180 memset(iv, 0, sizeof iv); /* per RFC 1510 */
2181 EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,
2183 EVP_EncryptUpdate(&ciph_ctx,epms,&outl,tmp_buf,
2185 EVP_EncryptFinal_ex(&ciph_ctx,&(epms[outl]),&padl);
2187 if (outl > (int)sizeof epms)
2189 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
2192 EVP_CIPHER_CTX_cleanup(&ciph_ctx);
2194 /* KerberosWrapper.EncryptedPreMasterSecret */
2196 memcpy(p, epms, outl);
2200 s->session->master_key_length=
2201 s->method->ssl3_enc->generate_master_secret(s,
2202 s->session->master_key,
2203 tmp_buf, sizeof tmp_buf);
2205 OPENSSL_cleanse(tmp_buf, sizeof tmp_buf);
2206 OPENSSL_cleanse(epms, outl);
2209 #ifndef OPENSSL_NO_DH
2210 else if (alg_k & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
2212 DH *dh_srvr,*dh_clnt;
2214 if (s->session->sess_cert == NULL)
2216 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
2217 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_UNEXPECTED_MESSAGE);
2221 if (s->session->sess_cert->peer_dh_tmp != NULL)
2222 dh_srvr=s->session->sess_cert->peer_dh_tmp;
2225 /* we get them from the cert */
2226 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
2227 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_DH_PARAMETERS);
2231 /* generate a new random key */
2232 if ((dh_clnt=DHparams_dup(dh_srvr)) == NULL)
2234 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
2237 if (!DH_generate_key(dh_clnt))
2239 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
2243 /* use the 'p' output buffer for the DH key, but
2244 * make sure to clear it out afterwards */
2246 n=DH_compute_key(p,dh_srvr->pub_key,dh_clnt);
2250 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
2254 /* generate master key from the result */
2255 s->session->master_key_length=
2256 s->method->ssl3_enc->generate_master_secret(s,
2257 s->session->master_key,p,n);
2261 /* send off the data */
2262 n=BN_num_bytes(dh_clnt->pub_key);
2264 BN_bn2bin(dh_clnt->pub_key,p);
2269 /* perhaps clean things up a bit EAY EAY EAY EAY*/
2273 #ifndef OPENSSL_NO_ECDH
2274 else if (alg_k & (SSL_kEECDH|SSL_kECDHr|SSL_kECDHe))
2276 const EC_GROUP *srvr_group = NULL;
2278 int ecdh_clnt_cert = 0;
2281 /* Did we send out the client's
2282 * ECDH share for use in premaster
2283 * computation as part of client certificate?
2284 * If so, set ecdh_clnt_cert to 1.
2286 if ((alg_k & (SSL_kECDHr|SSL_kECDHe)) && (s->cert != NULL))
2288 /* XXX: For now, we do not support client
2289 * authentication using ECDH certificates.
2290 * To add such support, one needs to add
2291 * code that checks for appropriate
2292 * conditions and sets ecdh_clnt_cert to 1.
2293 * For example, the cert have an ECC
2294 * key on the same curve as the server's
2295 * and the key should be authorized for
2298 * One also needs to add code in ssl3_connect
2299 * to skip sending the certificate verify
2302 * if ((s->cert->key->privatekey != NULL) &&
2303 * (s->cert->key->privatekey->type ==
2304 * EVP_PKEY_EC) && ...)
2305 * ecdh_clnt_cert = 1;
2309 if (s->session->sess_cert->peer_ecdh_tmp != NULL)
2311 tkey = s->session->sess_cert->peer_ecdh_tmp;
2315 /* Get the Server Public Key from Cert */
2316 srvr_pub_pkey = X509_get_pubkey(s->session-> \
2317 sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
2318 if ((srvr_pub_pkey == NULL) ||
2319 (srvr_pub_pkey->type != EVP_PKEY_EC) ||
2320 (srvr_pub_pkey->pkey.ec == NULL))
2322 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2323 ERR_R_INTERNAL_ERROR);
2327 tkey = srvr_pub_pkey->pkey.ec;
2330 srvr_group = EC_KEY_get0_group(tkey);
2331 srvr_ecpoint = EC_KEY_get0_public_key(tkey);
2333 if ((srvr_group == NULL) || (srvr_ecpoint == NULL))
2335 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2336 ERR_R_INTERNAL_ERROR);
2340 if ((clnt_ecdh=EC_KEY_new()) == NULL)
2342 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
2346 if (!EC_KEY_set_group(clnt_ecdh, srvr_group))
2348 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_EC_LIB);
2353 /* Reuse key info from our certificate
2354 * We only need our private key to perform
2355 * the ECDH computation.
2357 const BIGNUM *priv_key;
2358 tkey = s->cert->key->privatekey->pkey.ec;
2359 priv_key = EC_KEY_get0_private_key(tkey);
2360 if (priv_key == NULL)
2362 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
2365 if (!EC_KEY_set_private_key(clnt_ecdh, priv_key))
2367 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_EC_LIB);
2373 /* Generate a new ECDH key pair */
2374 if (!(EC_KEY_generate_key(clnt_ecdh)))
2376 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_ECDH_LIB);
2381 /* use the 'p' output buffer for the ECDH key, but
2382 * make sure to clear it out afterwards
2385 field_size = EC_GROUP_get_degree(srvr_group);
2386 if (field_size <= 0)
2388 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2392 n=ECDH_compute_key(p, (field_size+7)/8, srvr_ecpoint, clnt_ecdh, NULL);
2395 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2400 /* generate master key from the result */
2401 s->session->master_key_length = s->method->ssl3_enc \
2402 -> generate_master_secret(s,
2403 s->session->master_key,
2406 memset(p, 0, n); /* clean up */
2410 /* Send empty client key exch message */
2415 /* First check the size of encoding and
2416 * allocate memory accordingly.
2419 EC_POINT_point2oct(srvr_group,
2420 EC_KEY_get0_public_key(clnt_ecdh),
2421 POINT_CONVERSION_UNCOMPRESSED,
2424 encodedPoint = (unsigned char *)
2425 OPENSSL_malloc(encoded_pt_len *
2426 sizeof(unsigned char));
2427 bn_ctx = BN_CTX_new();
2428 if ((encodedPoint == NULL) ||
2431 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
2435 /* Encode the public key */
2436 n = EC_POINT_point2oct(srvr_group,
2437 EC_KEY_get0_public_key(clnt_ecdh),
2438 POINT_CONVERSION_UNCOMPRESSED,
2439 encodedPoint, encoded_pt_len, bn_ctx);
2441 *p = n; /* length of encoded point */
2442 /* Encoded point will be copied here */
2444 /* copy the point */
2445 memcpy((unsigned char *)p, encodedPoint, n);
2446 /* increment n to account for length field */
2450 /* Free allocated memory */
2451 BN_CTX_free(bn_ctx);
2452 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2453 if (clnt_ecdh != NULL)
2454 EC_KEY_free(clnt_ecdh);
2455 EVP_PKEY_free(srvr_pub_pkey);
2457 #endif /* !OPENSSL_NO_ECDH */
2458 else if (alg_k & SSL_kGOST)
2460 /* GOST key exchange message creation */
2461 EVP_PKEY_CTX *pkey_ctx;
2464 unsigned int md_len;
2466 unsigned char premaster_secret[32],shared_ukm[32], tmp[256];
2467 EVP_MD_CTX *ukm_hash;
2470 /* Get server sertificate PKEY and create ctx from it */
2471 peer_cert=s->session->sess_cert->peer_pkeys[(keytype=SSL_PKEY_GOST01)].x509;
2473 peer_cert=s->session->sess_cert->peer_pkeys[(keytype=SSL_PKEY_GOST94)].x509;
2475 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_NO_GOST_CERTIFICATE_SENT_BY_PEER);
2479 pkey_ctx=EVP_PKEY_CTX_new(pub_key=X509_get_pubkey(peer_cert),NULL);
2480 /* If we have send a certificate, and certificate key
2482 * parameters match those of server certificate, use
2483 * certificate key for key exchange
2486 /* Otherwise, generate ephemeral key pair */
2488 EVP_PKEY_encrypt_init(pkey_ctx);
2489 /* Generate session key */
2490 RAND_bytes(premaster_secret,32);
2491 /* If we have client certificate, use its secret as peer key */
2492 if (s->s3->tmp.cert_req && s->cert->key->privatekey) {
2493 if (EVP_PKEY_derive_set_peer(pkey_ctx,s->cert->key->privatekey) <=0) {
2494 /* If there was an error - just ignore it. Ephemeral key
2500 /* Compute shared IV and store it in algorithm-specific
2502 ukm_hash = EVP_MD_CTX_create();
2503 EVP_DigestInit(ukm_hash,EVP_get_digestbynid(NID_id_GostR3411_94));
2504 EVP_DigestUpdate(ukm_hash,s->s3->client_random,SSL3_RANDOM_SIZE);
2505 EVP_DigestUpdate(ukm_hash,s->s3->server_random,SSL3_RANDOM_SIZE);
2506 EVP_DigestFinal_ex(ukm_hash, shared_ukm, &md_len);
2507 EVP_MD_CTX_destroy(ukm_hash);
2508 if (EVP_PKEY_CTX_ctrl(pkey_ctx,-1,EVP_PKEY_OP_ENCRYPT,EVP_PKEY_CTRL_SET_IV,
2510 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2514 /* Make GOST keytransport blob message */
2515 /*Encapsulate it into sequence */
2516 *(p++)=V_ASN1_SEQUENCE | V_ASN1_CONSTRUCTED;
2518 if (EVP_PKEY_encrypt(pkey_ctx,tmp,&msglen,premaster_secret,32)<0) {
2519 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2526 *(p++)= msglen & 0xff;
2531 *(p++)= msglen & 0xff;
2534 memcpy(p, tmp, msglen);
2535 /* Check if pubkey from client certificate was used */
2536 if (EVP_PKEY_CTX_ctrl(pkey_ctx, -1, -1, EVP_PKEY_CTRL_PEER_KEY, 2, NULL) > 0)
2538 /* Set flag "skip certificate verify" */
2539 s->s3->flags |= TLS1_FLAGS_SKIP_CERT_VERIFY;
2541 EVP_PKEY_CTX_free(pkey_ctx);
2542 s->session->master_key_length=
2543 s->method->ssl3_enc->generate_master_secret(s,
2544 s->session->master_key,premaster_secret,32);
2545 EVP_PKEY_free(pub_key);
2548 #ifndef OPENSSL_NO_PSK
2549 else if (alg_k & SSL_kPSK)
2551 char identity[PSK_MAX_IDENTITY_LEN];
2552 unsigned char *t = NULL;
2553 unsigned char psk_or_pre_ms[PSK_MAX_PSK_LEN*2+4];
2554 unsigned int pre_ms_len = 0, psk_len = 0;
2558 if (s->psk_client_callback == NULL)
2560 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2561 SSL_R_PSK_NO_CLIENT_CB);
2565 psk_len = s->psk_client_callback(s, s->ctx->psk_identity_hint,
2566 identity, PSK_MAX_IDENTITY_LEN,
2567 psk_or_pre_ms, sizeof(psk_or_pre_ms));
2568 if (psk_len > PSK_MAX_PSK_LEN)
2570 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2571 ERR_R_INTERNAL_ERROR);
2574 else if (psk_len == 0)
2576 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2577 SSL_R_PSK_IDENTITY_NOT_FOUND);
2581 /* create PSK pre_master_secret */
2582 pre_ms_len = 2+psk_len+2+psk_len;
2584 memmove(psk_or_pre_ms+psk_len+4, psk_or_pre_ms, psk_len);
2586 memset(t, 0, psk_len);
2590 if (s->session->psk_identity_hint != NULL)
2591 OPENSSL_free(s->session->psk_identity_hint);
2592 s->session->psk_identity_hint = BUF_strdup(s->ctx->psk_identity_hint);
2593 if (s->ctx->psk_identity_hint != NULL &&
2594 s->session->psk_identity_hint == NULL)
2596 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2597 ERR_R_MALLOC_FAILURE);
2601 if (s->session->psk_identity != NULL)
2602 OPENSSL_free(s->session->psk_identity);
2603 s->session->psk_identity = BUF_strdup(identity);
2604 if (s->session->psk_identity == NULL)
2606 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2607 ERR_R_MALLOC_FAILURE);
2611 s->session->master_key_length =
2612 s->method->ssl3_enc->generate_master_secret(s,
2613 s->session->master_key,
2614 psk_or_pre_ms, pre_ms_len);
2615 n = strlen(identity);
2617 memcpy(p, identity, n);
2621 OPENSSL_cleanse(identity, PSK_MAX_IDENTITY_LEN);
2622 OPENSSL_cleanse(psk_or_pre_ms, sizeof(psk_or_pre_ms));
2625 ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE);
2632 ssl3_send_alert(s, SSL3_AL_FATAL,
2633 SSL_AD_HANDSHAKE_FAILURE);
2634 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2635 ERR_R_INTERNAL_ERROR);
2639 *(d++)=SSL3_MT_CLIENT_KEY_EXCHANGE;
2642 s->state=SSL3_ST_CW_KEY_EXCH_B;
2643 /* number of bytes to write */
2648 /* SSL3_ST_CW_KEY_EXCH_B */
2649 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2651 #ifndef OPENSSL_NO_ECDH
2652 BN_CTX_free(bn_ctx);
2653 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2654 if (clnt_ecdh != NULL)
2655 EC_KEY_free(clnt_ecdh);
2656 EVP_PKEY_free(srvr_pub_pkey);
2661 int ssl3_send_client_verify(SSL *s)
2663 unsigned char *p,*d;
2664 unsigned char data[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];
2666 EVP_PKEY_CTX *pctx=NULL;
2667 #ifndef OPENSSL_NO_RSA
2671 #if !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
2675 if (s->state == SSL3_ST_CW_CERT_VRFY_A)
2677 d=(unsigned char *)s->init_buf->data;
2679 pkey=s->cert->key->privatekey;
2680 /* Create context from key and test if sha1 is allowed as digest */
2681 pctx = EVP_PKEY_CTX_new(pkey,NULL);
2682 EVP_PKEY_sign_init(pctx);
2683 if (EVP_PKEY_CTX_set_signature_md(pctx, EVP_sha1())>0)
2685 s->method->ssl3_enc->cert_verify_mac(s,
2687 &(data[MD5_DIGEST_LENGTH]));
2693 #ifndef OPENSSL_NO_RSA
2694 if (pkey->type == EVP_PKEY_RSA)
2696 s->method->ssl3_enc->cert_verify_mac(s,
2699 if (RSA_sign(NID_md5_sha1, data,
2700 MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH,
2701 &(p[2]), &u, pkey->pkey.rsa) <= 0 )
2703 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_RSA_LIB);
2711 #ifndef OPENSSL_NO_DSA
2712 if (pkey->type == EVP_PKEY_DSA)
2714 if (!DSA_sign(pkey->save_type,
2715 &(data[MD5_DIGEST_LENGTH]),
2716 SHA_DIGEST_LENGTH,&(p[2]),
2717 (unsigned int *)&j,pkey->pkey.dsa))
2719 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_DSA_LIB);
2727 #ifndef OPENSSL_NO_ECDSA
2728 if (pkey->type == EVP_PKEY_EC)
2730 if (!ECDSA_sign(pkey->save_type,
2731 &(data[MD5_DIGEST_LENGTH]),
2732 SHA_DIGEST_LENGTH,&(p[2]),
2733 (unsigned int *)&j,pkey->pkey.ec))
2735 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,
2744 if (pkey->type == NID_id_GostR3410_94 || pkey->type == NID_id_GostR3410_2001)
2746 unsigned char signbuf[64];
2749 s->method->ssl3_enc->cert_verify_mac(s,
2750 NID_id_GostR3411_94,
2752 if (EVP_PKEY_sign(pctx, signbuf, &sigsize, data, 32) <= 0) {
2753 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,
2754 ERR_R_INTERNAL_ERROR);
2757 for (i=63,j=0; i>=0; j++, i--) {
2765 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_INTERNAL_ERROR);
2768 *(d++)=SSL3_MT_CERTIFICATE_VERIFY;
2771 s->state=SSL3_ST_CW_CERT_VRFY_B;
2772 s->init_num=(int)n+4;
2775 EVP_PKEY_CTX_free(pctx);
2776 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2778 EVP_PKEY_CTX_free(pctx);
2782 int ssl3_send_client_certificate(SSL *s)
2785 EVP_PKEY *pkey=NULL;
2789 if (s->state == SSL3_ST_CW_CERT_A)
2791 if ((s->cert == NULL) ||
2792 (s->cert->key->x509 == NULL) ||
2793 (s->cert->key->privatekey == NULL))
2794 s->state=SSL3_ST_CW_CERT_B;
2796 s->state=SSL3_ST_CW_CERT_C;
2799 /* We need to get a client cert */
2800 if (s->state == SSL3_ST_CW_CERT_B)
2802 /* If we get an error, we need to
2803 * ssl->rwstate=SSL_X509_LOOKUP; return(-1);
2804 * We then get retied later */
2806 i = ssl_do_client_cert_cb(s, &x509, &pkey);
2809 s->rwstate=SSL_X509_LOOKUP;
2812 s->rwstate=SSL_NOTHING;
2813 if ((i == 1) && (pkey != NULL) && (x509 != NULL))
2815 s->state=SSL3_ST_CW_CERT_B;
2816 if ( !SSL_use_certificate(s,x509) ||
2817 !SSL_use_PrivateKey(s,pkey))
2823 SSLerr(SSL_F_SSL3_SEND_CLIENT_CERTIFICATE,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK);
2826 if (x509 != NULL) X509_free(x509);
2827 if (pkey != NULL) EVP_PKEY_free(pkey);
2830 if (s->version == SSL3_VERSION)
2832 s->s3->tmp.cert_req=0;
2833 ssl3_send_alert(s,SSL3_AL_WARNING,SSL_AD_NO_CERTIFICATE);
2838 s->s3->tmp.cert_req=2;
2842 /* Ok, we have a cert */
2843 s->state=SSL3_ST_CW_CERT_C;
2846 if (s->state == SSL3_ST_CW_CERT_C)
2848 s->state=SSL3_ST_CW_CERT_D;
2849 l=ssl3_output_cert_chain(s,
2850 (s->s3->tmp.cert_req == 2)?NULL:s->cert->key->x509);
2854 /* SSL3_ST_CW_CERT_D */
2855 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2858 #define has_bits(i,m) (((i)&(m)) == (m))
2860 int ssl3_check_cert_and_algorithm(SSL *s)
2864 EVP_PKEY *pkey=NULL;
2866 #ifndef OPENSSL_NO_RSA
2869 #ifndef OPENSSL_NO_DH
2873 sc=s->session->sess_cert;
2876 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,ERR_R_INTERNAL_ERROR);
2880 alg_k=s->s3->tmp.new_cipher->algorithm_mkey;
2881 alg_a=s->s3->tmp.new_cipher->algorithm_auth;
2883 /* we don't have a certificate */
2884 if ((alg_a & (SSL_aDH|SSL_aNULL|SSL_aKRB5)) || (alg_k & SSL_kPSK))
2887 #ifndef OPENSSL_NO_RSA
2888 rsa=s->session->sess_cert->peer_rsa_tmp;
2890 #ifndef OPENSSL_NO_DH
2891 dh=s->session->sess_cert->peer_dh_tmp;
2894 /* This is the passed certificate */
2896 idx=sc->peer_cert_type;
2897 #ifndef OPENSSL_NO_ECDH
2898 if (idx == SSL_PKEY_ECC)
2900 if (ssl_check_srvr_ecc_cert_and_alg(sc->peer_pkeys[idx].x509,
2901 s->s3->tmp.new_cipher) == 0)
2902 { /* check failed */
2903 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_BAD_ECC_CERT);
2912 pkey=X509_get_pubkey(sc->peer_pkeys[idx].x509);
2913 i=X509_certificate_type(sc->peer_pkeys[idx].x509,pkey);
2914 EVP_PKEY_free(pkey);
2917 /* Check that we have a certificate if we require one */
2918 if ((alg_a & SSL_aRSA) && !has_bits(i,EVP_PK_RSA|EVP_PKT_SIGN))
2920 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_SIGNING_CERT);
2923 #ifndef OPENSSL_NO_DSA
2924 else if ((alg_a & SSL_aDSS) && !has_bits(i,EVP_PK_DSA|EVP_PKT_SIGN))
2926 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DSA_SIGNING_CERT);
2930 #ifndef OPENSSL_NO_RSA
2931 if ((alg_k & SSL_kRSA) &&
2932 !(has_bits(i,EVP_PK_RSA|EVP_PKT_ENC) || (rsa != NULL)))
2934 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_ENCRYPTING_CERT);
2938 #ifndef OPENSSL_NO_DH
2939 if ((alg_k & SSL_kEDH) &&
2940 !(has_bits(i,EVP_PK_DH|EVP_PKT_EXCH) || (dh != NULL)))
2942 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_KEY);
2945 else if ((alg_k & SSL_kDHr) && !has_bits(i,EVP_PK_DH|EVP_PKS_RSA))
2947 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_RSA_CERT);
2950 #ifndef OPENSSL_NO_DSA
2951 else if ((alg_k & SSL_kDHd) && !has_bits(i,EVP_PK_DH|EVP_PKS_DSA))
2953 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_DSA_CERT);
2959 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) && !has_bits(i,EVP_PKT_EXP))
2961 #ifndef OPENSSL_NO_RSA
2962 if (alg_k & SSL_kRSA)
2965 || RSA_size(rsa)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2967 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_RSA_KEY);
2973 #ifndef OPENSSL_NO_DH
2974 if (alg_k & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
2977 || DH_size(dh)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2979 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_DH_KEY);
2986 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);
2992 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
2997 /* Check to see if handshake is full or resumed. Usually this is just a
2998 * case of checking to see if a cache hit has occurred. In the case of
2999 * session tickets we have to check the next message to be sure.
3002 #ifndef OPENSSL_NO_TLSEXT
3003 int ssl3_check_finished(SSL *s)
3007 /* If we have no ticket it cannot be a resumed session. */
3008 if (!s->session->tlsext_tick)
3010 /* this function is called when we really expect a Certificate
3011 * message, so permit appropriate message length */
3012 n=s->method->ssl_get_message(s,
3018 if (!ok) return((int)n);
3019 s->s3->tmp.reuse_message = 1;
3020 if ((s->s3->tmp.message_type == SSL3_MT_FINISHED)
3021 || (s->s3->tmp.message_type == SSL3_MT_NEWSESSION_TICKET))
3028 int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey)
3031 #ifndef OPENSSL_NO_ENGINE
3032 if (s->ctx->client_cert_engine)
3034 i = ENGINE_load_ssl_client_cert(s->ctx->client_cert_engine, s,
3035 SSL_get_client_CA_list(s),
3036 px509, ppkey, NULL, NULL, NULL);
3041 if (s->ctx->client_cert_cb)
3042 i = s->ctx->client_cert_cb(s,px509,ppkey);