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) 1998-2006 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.
126 #include "ssl_locl.h"
127 #include "kssl_lcl.h"
128 #include <openssl/buffer.h>
129 #include <openssl/rand.h>
130 #include <openssl/objects.h>
131 #include <openssl/evp.h>
132 #include <openssl/md5.h>
133 #ifndef OPENSSL_NO_DH
134 #include <openssl/dh.h>
136 #include <openssl/bn.h>
138 static const SSL_METHOD *ssl3_get_client_method(int ver);
139 static int ca_dn_cmp(const X509_NAME * const *a,const X509_NAME * const *b);
141 #ifndef OPENSSL_NO_ECDH
142 static int curve_id2nid(int curve_id);
143 int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs);
146 static const SSL_METHOD *ssl3_get_client_method(int ver)
148 if (ver == SSL3_VERSION)
149 return(SSLv3_client_method());
154 IMPLEMENT_ssl3_meth_func(SSLv3_client_method,
155 ssl_undefined_function,
157 ssl3_get_client_method)
159 int ssl3_connect(SSL *s)
162 unsigned long Time=(unsigned long)time(NULL),l;
164 void (*cb)(const SSL *ssl,int type,int val)=NULL;
166 int new_state,state,skip=0;;
168 RAND_add(&Time,sizeof(Time),0);
172 if (s->info_callback != NULL)
174 else if (s->ctx->info_callback != NULL)
175 cb=s->ctx->info_callback;
178 if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
186 case SSL_ST_RENEGOTIATE:
188 s->state=SSL_ST_CONNECT;
189 s->ctx->stats.sess_connect_renegotiate++;
193 case SSL_ST_BEFORE|SSL_ST_CONNECT:
194 case SSL_ST_OK|SSL_ST_CONNECT:
197 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
199 if ((s->version & 0xff00 ) != 0x0300)
201 SSLerr(SSL_F_SSL3_CONNECT, ERR_R_INTERNAL_ERROR);
206 /* s->version=SSL3_VERSION; */
207 s->type=SSL_ST_CONNECT;
209 if (s->init_buf == NULL)
211 if ((buf=BUF_MEM_new()) == NULL)
216 if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))
225 if (!ssl3_setup_buffers(s)) { ret= -1; goto end; }
227 /* setup buffing BIO */
228 if (!ssl_init_wbio_buffer(s,0)) { ret= -1; goto end; }
230 /* don't push the buffering BIO quite yet */
232 ssl3_init_finished_mac(s);
234 s->state=SSL3_ST_CW_CLNT_HELLO_A;
235 s->ctx->stats.sess_connect++;
239 case SSL3_ST_CW_CLNT_HELLO_A:
240 case SSL3_ST_CW_CLNT_HELLO_B:
243 ret=ssl3_client_hello(s);
244 if (ret <= 0) goto end;
245 s->state=SSL3_ST_CR_SRVR_HELLO_A;
248 /* turn on buffering for the next lot of output */
249 if (s->bbio != s->wbio)
250 s->wbio=BIO_push(s->bbio,s->wbio);
254 case SSL3_ST_CR_SRVR_HELLO_A:
255 case SSL3_ST_CR_SRVR_HELLO_B:
256 ret=ssl3_get_server_hello(s);
257 if (ret <= 0) goto end;
260 s->state=SSL3_ST_CR_FINISHED_A;
262 s->state=SSL3_ST_CR_CERT_A;
266 case SSL3_ST_CR_CERT_A:
267 case SSL3_ST_CR_CERT_B:
268 /* Check if it is anon DH/ECDH */
269 if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
271 ret=ssl3_get_server_certificate(s);
272 if (ret <= 0) goto end;
276 s->state=SSL3_ST_CR_KEY_EXCH_A;
280 case SSL3_ST_CR_KEY_EXCH_A:
281 case SSL3_ST_CR_KEY_EXCH_B:
282 ret=ssl3_get_key_exchange(s);
283 if (ret <= 0) goto end;
284 s->state=SSL3_ST_CR_CERT_REQ_A;
287 /* at this point we check that we have the
288 * required stuff from the server */
289 if (!ssl3_check_cert_and_algorithm(s))
296 case SSL3_ST_CR_CERT_REQ_A:
297 case SSL3_ST_CR_CERT_REQ_B:
298 ret=ssl3_get_certificate_request(s);
299 if (ret <= 0) goto end;
300 s->state=SSL3_ST_CR_SRVR_DONE_A;
304 case SSL3_ST_CR_SRVR_DONE_A:
305 case SSL3_ST_CR_SRVR_DONE_B:
306 ret=ssl3_get_server_done(s);
307 if (ret <= 0) goto end;
308 if (s->s3->tmp.cert_req)
309 s->state=SSL3_ST_CW_CERT_A;
311 s->state=SSL3_ST_CW_KEY_EXCH_A;
316 case SSL3_ST_CW_CERT_A:
317 case SSL3_ST_CW_CERT_B:
318 case SSL3_ST_CW_CERT_C:
319 case SSL3_ST_CW_CERT_D:
320 ret=ssl3_send_client_certificate(s);
321 if (ret <= 0) goto end;
322 s->state=SSL3_ST_CW_KEY_EXCH_A;
326 case SSL3_ST_CW_KEY_EXCH_A:
327 case SSL3_ST_CW_KEY_EXCH_B:
328 ret=ssl3_send_client_key_exchange(s);
329 if (ret <= 0) goto end;
330 l=s->s3->tmp.new_cipher->algorithms;
331 /* EAY EAY EAY need to check for DH fix cert
333 /* For TLS, cert_req is set to 2, so a cert chain
334 * of nothing is sent, but no verify packet is sent */
335 /* XXX: For now, we do not support client
336 * authentication in ECDH cipher suites with
337 * ECDH (rather than ECDSA) certificates.
338 * We need to skip the certificate verify
339 * message when client's ECDH public key is sent
340 * inside the client certificate.
342 if (s->s3->tmp.cert_req == 1)
344 s->state=SSL3_ST_CW_CERT_VRFY_A;
348 s->state=SSL3_ST_CW_CHANGE_A;
349 s->s3->change_cipher_spec=0;
355 case SSL3_ST_CW_CERT_VRFY_A:
356 case SSL3_ST_CW_CERT_VRFY_B:
357 ret=ssl3_send_client_verify(s);
358 if (ret <= 0) goto end;
359 s->state=SSL3_ST_CW_CHANGE_A;
361 s->s3->change_cipher_spec=0;
364 case SSL3_ST_CW_CHANGE_A:
365 case SSL3_ST_CW_CHANGE_B:
366 ret=ssl3_send_change_cipher_spec(s,
367 SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B);
368 if (ret <= 0) goto end;
369 s->state=SSL3_ST_CW_FINISHED_A;
372 s->session->cipher=s->s3->tmp.new_cipher;
373 #ifdef OPENSSL_NO_COMP
374 s->session->compress_meth=0;
376 if (s->s3->tmp.new_compression == NULL)
377 s->session->compress_meth=0;
379 s->session->compress_meth=
380 s->s3->tmp.new_compression->id;
382 if (!s->method->ssl3_enc->setup_key_block(s))
388 if (!s->method->ssl3_enc->change_cipher_state(s,
389 SSL3_CHANGE_CIPHER_CLIENT_WRITE))
397 case SSL3_ST_CW_FINISHED_A:
398 case SSL3_ST_CW_FINISHED_B:
399 ret=ssl3_send_finished(s,
400 SSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B,
401 s->method->ssl3_enc->client_finished_label,
402 s->method->ssl3_enc->client_finished_label_len);
403 if (ret <= 0) goto end;
404 s->state=SSL3_ST_CW_FLUSH;
407 s->s3->flags&= ~SSL3_FLAGS_POP_BUFFER;
410 s->s3->tmp.next_state=SSL_ST_OK;
411 if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED)
414 s->s3->flags|=SSL3_FLAGS_POP_BUFFER;
415 s->s3->delay_buf_pop_ret=0;
420 s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A;
425 case SSL3_ST_CR_FINISHED_A:
426 case SSL3_ST_CR_FINISHED_B:
428 ret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A,
429 SSL3_ST_CR_FINISHED_B);
430 if (ret <= 0) goto end;
433 s->state=SSL3_ST_CW_CHANGE_A;
439 case SSL3_ST_CW_FLUSH:
440 /* number of bytes to be flushed */
441 num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);
444 s->rwstate=SSL_WRITING;
445 num1=BIO_flush(s->wbio);
446 if (num1 <= 0) { ret= -1; goto end; }
447 s->rwstate=SSL_NOTHING;
450 s->state=s->s3->tmp.next_state;
454 /* clean a few things up */
455 ssl3_cleanup_key_block(s);
457 if (s->init_buf != NULL)
459 BUF_MEM_free(s->init_buf);
463 /* If we are not 'joining' the last two packets,
464 * remove the buffering now */
465 if (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER))
466 ssl_free_wbio_buffer(s);
467 /* else do it later in ssl3_write */
472 ssl_update_cache(s,SSL_SESS_CACHE_CLIENT);
473 if (s->hit) s->ctx->stats.sess_hit++;
477 s->handshake_func=ssl3_connect;
478 s->ctx->stats.sess_connect_good++;
480 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);
486 SSLerr(SSL_F_SSL3_CONNECT,SSL_R_UNKNOWN_STATE);
492 /* did we do anything */
493 if (!s->s3->tmp.reuse_message && !skip)
497 if ((ret=BIO_flush(s->wbio)) <= 0)
501 if ((cb != NULL) && (s->state != state))
505 cb(s,SSL_CB_CONNECT_LOOP,1);
516 cb(s,SSL_CB_CONNECT_EXIT,ret);
521 int ssl3_client_hello(SSL *s)
526 unsigned long Time,l;
527 #ifndef OPENSSL_NO_COMP
532 buf=(unsigned char *)s->init_buf->data;
533 if (s->state == SSL3_ST_CW_CLNT_HELLO_A)
535 if ((s->session == NULL) ||
536 (s->session->ssl_version != s->version) ||
537 (s->session->not_resumable))
539 if (!ssl_get_new_session(s,0))
542 /* else use the pre-loaded session */
544 p=s->s3->client_random;
545 Time=(unsigned long)time(NULL); /* Time */
547 if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0)
550 /* Do the message type and length last */
553 *(p++)=s->version>>8;
554 *(p++)=s->version&0xff;
555 s->client_version=s->version;
558 memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
565 i=s->session->session_id_length;
569 if (i > (int)sizeof(s->session->session_id))
571 SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
574 memcpy(p,s->session->session_id,i);
578 /* Ciphers supported */
579 i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]),0);
582 SSLerr(SSL_F_SSL3_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
589 #ifdef OPENSSL_NO_COMP
593 if ((s->options & SSL_OP_NO_COMPRESSION)
594 || !s->ctx->comp_methods)
597 j=sk_SSL_COMP_num(s->ctx->comp_methods);
601 comp=sk_SSL_COMP_value(s->ctx->comp_methods,i);
605 *(p++)=0; /* Add the NULL method */
606 #ifndef OPENSSL_NO_TLSEXT
607 if ((p = ssl_add_clienthello_tlsext(s, p, buf+SSL3_RT_MAX_PLAIN_LENGTH)) == NULL)
609 SSLerr(SSL_F_SSL3_CLIENT_HELLO,ERR_R_INTERNAL_ERROR);
616 *(d++)=SSL3_MT_CLIENT_HELLO;
619 s->state=SSL3_ST_CW_CLNT_HELLO_B;
620 /* number of bytes to write */
625 /* SSL3_ST_CW_CLNT_HELLO_B */
626 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
631 int ssl3_get_server_hello(SSL *s)
633 STACK_OF(SSL_CIPHER) *sk;
639 #ifndef OPENSSL_NO_COMP
643 n=s->method->ssl_get_message(s,
644 SSL3_ST_CR_SRVR_HELLO_A,
645 SSL3_ST_CR_SRVR_HELLO_B,
650 if (!ok) return((int)n);
652 if ( SSL_version(s) == DTLS1_VERSION)
654 if ( s->s3->tmp.message_type == DTLS1_MT_HELLO_VERIFY_REQUEST)
656 if ( s->d1->send_cookie == 0)
658 s->s3->tmp.reuse_message = 1;
661 else /* already sent a cookie */
663 al=SSL_AD_UNEXPECTED_MESSAGE;
664 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);
670 if ( s->s3->tmp.message_type != SSL3_MT_SERVER_HELLO)
672 al=SSL_AD_UNEXPECTED_MESSAGE;
673 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);
677 d=p=(unsigned char *)s->init_msg;
679 if ((p[0] != (s->version>>8)) || (p[1] != (s->version&0xff)))
681 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_SSL_VERSION);
682 s->version=(s->version&0xff00)|p[1];
683 al=SSL_AD_PROTOCOL_VERSION;
688 /* load the server hello data */
689 /* load the server random */
690 memcpy(s->s3->server_random,p,SSL3_RANDOM_SIZE);
693 /* get the session-id */
696 if ((j > sizeof s->session->session_id) || (j > SSL3_SESSION_ID_SIZE))
698 al=SSL_AD_ILLEGAL_PARAMETER;
699 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SSL3_SESSION_ID_TOO_LONG);
703 if (j != 0 && j == s->session->session_id_length
704 && memcmp(p,s->session->session_id,j) == 0)
706 if(s->sid_ctx_length != s->session->sid_ctx_length
707 || memcmp(s->session->sid_ctx,s->sid_ctx,s->sid_ctx_length))
709 /* actually a client application bug */
710 al=SSL_AD_ILLEGAL_PARAMETER;
711 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);
716 else /* a miss or crap from the other end */
718 /* If we were trying for session-id reuse, make a new
719 * SSL_SESSION so we don't stuff up other people */
721 if (s->session->session_id_length > 0)
723 if (!ssl_get_new_session(s,0))
725 al=SSL_AD_INTERNAL_ERROR;
729 s->session->session_id_length=j;
730 memcpy(s->session->session_id,p,j); /* j could be 0 */
733 c=ssl_get_cipher_by_char(s,p);
737 al=SSL_AD_ILLEGAL_PARAMETER;
738 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNKNOWN_CIPHER_RETURNED);
741 p+=ssl_put_cipher_by_char(s,NULL,NULL);
743 sk=ssl_get_ciphers_by_id(s);
744 i=sk_SSL_CIPHER_find(sk,c);
747 /* we did not say we would use this cipher */
748 al=SSL_AD_ILLEGAL_PARAMETER;
749 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_CIPHER_RETURNED);
753 /* Depending on the session caching (internal/external), the cipher
754 and/or cipher_id values may not be set. Make sure that
755 cipher_id is set and use it for comparison. */
756 if (s->session->cipher)
757 s->session->cipher_id = s->session->cipher->id;
758 if (s->hit && (s->session->cipher_id != c->id))
761 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG))
763 al=SSL_AD_ILLEGAL_PARAMETER;
764 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED);
768 s->s3->tmp.new_cipher=c;
770 /* lets get the compression algorithm */
772 #ifdef OPENSSL_NO_COMP
775 al=SSL_AD_ILLEGAL_PARAMETER;
776 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
781 if ((j == 0) || (s->options & SSL_OP_NO_COMPRESSION))
784 comp=ssl3_comp_find(s->ctx->comp_methods,j);
786 if ((j != 0) && (comp == NULL))
788 al=SSL_AD_ILLEGAL_PARAMETER;
789 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
794 s->s3->tmp.new_compression=comp;
797 #ifndef OPENSSL_NO_TLSEXT
799 if (s->version > SSL3_VERSION)
801 if (!ssl_parse_serverhello_tlsext(s,&p,d,n, &al))
803 /* 'al' set by ssl_parse_serverhello_tlsext */
804 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_PARSE_TLS_EXT);
807 if (ssl_check_tlsext(s,0) <= 0)
809 SSLerr(SSL_F_SSL3_CONNECT,SSL_R_SERVERHELLO_TLS_EXT);
817 /* wrong packet length */
818 al=SSL_AD_DECODE_ERROR;
819 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_PACKET_LENGTH);
825 ssl3_send_alert(s,SSL3_AL_FATAL,al);
830 int ssl3_get_server_certificate(SSL *s)
833 unsigned long n,nc,llen,l;
835 const unsigned char *q,*p;
837 STACK_OF(X509) *sk=NULL;
840 int need_cert = 1; /* VRS: 0=> will allow null cert if auth == KRB5 */
842 n=s->method->ssl_get_message(s,
849 if (!ok) return((int)n);
851 if (s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE)
853 s->s3->tmp.reuse_message=1;
857 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE)
859 al=SSL_AD_UNEXPECTED_MESSAGE;
860 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_BAD_MESSAGE_TYPE);
863 p=d=(unsigned char *)s->init_msg;
865 if ((sk=sk_X509_new_null()) == NULL)
867 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
874 al=SSL_AD_DECODE_ERROR;
875 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_LENGTH_MISMATCH);
878 for (nc=0; nc<llen; )
883 al=SSL_AD_DECODE_ERROR;
884 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
889 x=d2i_X509(NULL,&q,l);
892 al=SSL_AD_BAD_CERTIFICATE;
893 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_ASN1_LIB);
898 al=SSL_AD_DECODE_ERROR;
899 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
902 if (!sk_X509_push(sk,x))
904 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
912 i=ssl_verify_cert_chain(s,sk);
913 if ((s->verify_mode != SSL_VERIFY_NONE) && (!i)
914 #ifndef OPENSSL_NO_KRB5
915 && (s->s3->tmp.new_cipher->algorithms & (SSL_MKEY_MASK|SSL_AUTH_MASK))
916 != (SSL_aKRB5|SSL_kKRB5)
917 #endif /* OPENSSL_NO_KRB5 */
920 al=ssl_verify_alarm_type(s->verify_result);
921 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED);
924 ERR_clear_error(); /* but we keep s->verify_result */
926 sc=ssl_sess_cert_new();
927 if (sc == NULL) goto err;
929 if (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert);
930 s->session->sess_cert=sc;
933 /* Inconsistency alert: cert_chain does include the peer's
934 * certificate, which we don't include in s3_srvr.c */
935 x=sk_X509_value(sk,0);
937 /* VRS 19990621: possible memory leak; sk=null ==> !sk_pop_free() @end*/
939 pkey=X509_get_pubkey(x);
941 /* VRS: allow null cert if auth == KRB5 */
942 need_cert = ((s->s3->tmp.new_cipher->algorithms
943 & (SSL_MKEY_MASK|SSL_AUTH_MASK))
944 == (SSL_aKRB5|SSL_kKRB5))? 0: 1;
947 printf("pkey,x = %p, %p\n", pkey,x);
948 printf("ssl_cert_type(x,pkey) = %d\n", ssl_cert_type(x,pkey));
949 printf("cipher, alg, nc = %s, %lx, %d\n", s->s3->tmp.new_cipher->name,
950 s->s3->tmp.new_cipher->algorithms, need_cert);
951 #endif /* KSSL_DEBUG */
953 if (need_cert && ((pkey == NULL) || EVP_PKEY_missing_parameters(pkey)))
957 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
958 SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS);
962 i=ssl_cert_type(x,pkey);
963 if (need_cert && i < 0)
967 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
968 SSL_R_UNKNOWN_CERTIFICATE_TYPE);
974 sc->peer_cert_type=i;
975 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
976 /* Why would the following ever happen?
977 * We just created sc a couple of lines ago. */
978 if (sc->peer_pkeys[i].x509 != NULL)
979 X509_free(sc->peer_pkeys[i].x509);
980 sc->peer_pkeys[i].x509=x;
981 sc->peer_key= &(sc->peer_pkeys[i]);
983 if (s->session->peer != NULL)
984 X509_free(s->session->peer);
985 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
990 sc->peer_cert_type=i;
993 if (s->session->peer != NULL)
994 X509_free(s->session->peer);
995 s->session->peer=NULL;
997 s->session->verify_result = s->verify_result;
1005 ssl3_send_alert(s,SSL3_AL_FATAL,al);
1008 EVP_PKEY_free(pkey);
1010 sk_X509_pop_free(sk,X509_free);
1014 int ssl3_get_key_exchange(SSL *s)
1016 #ifndef OPENSSL_NO_RSA
1017 unsigned char *q,md_buf[EVP_MAX_MD_SIZE*2];
1020 unsigned char *param,*p;
1021 int al,i,j,param_len,ok;
1023 EVP_PKEY *pkey=NULL;
1024 #ifndef OPENSSL_NO_RSA
1027 #ifndef OPENSSL_NO_DH
1030 #ifndef OPENSSL_NO_ECDH
1031 EC_KEY *ecdh = NULL;
1032 BN_CTX *bn_ctx = NULL;
1033 EC_POINT *srvr_ecpoint = NULL;
1035 int encoded_pt_len = 0;
1038 /* use same message size as in ssl3_get_certificate_request()
1039 * as ServerKeyExchange message may be skipped */
1040 n=s->method->ssl_get_message(s,
1041 SSL3_ST_CR_KEY_EXCH_A,
1042 SSL3_ST_CR_KEY_EXCH_B,
1047 if (!ok) return((int)n);
1049 if (s->s3->tmp.message_type != SSL3_MT_SERVER_KEY_EXCHANGE)
1051 s->s3->tmp.reuse_message=1;
1055 param=p=(unsigned char *)s->init_msg;
1057 if (s->session->sess_cert != NULL)
1059 #ifndef OPENSSL_NO_RSA
1060 if (s->session->sess_cert->peer_rsa_tmp != NULL)
1062 RSA_free(s->session->sess_cert->peer_rsa_tmp);
1063 s->session->sess_cert->peer_rsa_tmp=NULL;
1066 #ifndef OPENSSL_NO_DH
1067 if (s->session->sess_cert->peer_dh_tmp)
1069 DH_free(s->session->sess_cert->peer_dh_tmp);
1070 s->session->sess_cert->peer_dh_tmp=NULL;
1073 #ifndef OPENSSL_NO_ECDH
1074 if (s->session->sess_cert->peer_ecdh_tmp)
1076 EC_KEY_free(s->session->sess_cert->peer_ecdh_tmp);
1077 s->session->sess_cert->peer_ecdh_tmp=NULL;
1083 s->session->sess_cert=ssl_sess_cert_new();
1087 alg=s->s3->tmp.new_cipher->algorithms;
1088 EVP_MD_CTX_init(&md_ctx);
1090 #ifndef OPENSSL_NO_RSA
1093 if ((rsa=RSA_new()) == NULL)
1095 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1102 al=SSL_AD_DECODE_ERROR;
1103 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_MODULUS_LENGTH);
1106 if (!(rsa->n=BN_bin2bn(p,i,rsa->n)))
1108 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1117 al=SSL_AD_DECODE_ERROR;
1118 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_E_LENGTH);
1121 if (!(rsa->e=BN_bin2bn(p,i,rsa->e)))
1123 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1129 /* this should be because we are using an export cipher */
1131 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1134 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1137 s->session->sess_cert->peer_rsa_tmp=rsa;
1140 #else /* OPENSSL_NO_RSA */
1144 #ifndef OPENSSL_NO_DH
1145 else if (alg & SSL_kEDH)
1147 if ((dh=DH_new()) == NULL)
1149 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_DH_LIB);
1156 al=SSL_AD_DECODE_ERROR;
1157 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_P_LENGTH);
1160 if (!(dh->p=BN_bin2bn(p,i,NULL)))
1162 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1171 al=SSL_AD_DECODE_ERROR;
1172 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_G_LENGTH);
1175 if (!(dh->g=BN_bin2bn(p,i,NULL)))
1177 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1186 al=SSL_AD_DECODE_ERROR;
1187 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_PUB_KEY_LENGTH);
1190 if (!(dh->pub_key=BN_bin2bn(p,i,NULL)))
1192 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1198 #ifndef OPENSSL_NO_RSA
1200 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1205 #ifndef OPENSSL_NO_DSA
1206 else if (alg & SSL_aDSS)
1207 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].x509);
1209 /* else anonymous DH, so no certificate or pkey. */
1211 s->session->sess_cert->peer_dh_tmp=dh;
1214 else if ((alg & SSL_kDHr) || (alg & SSL_kDHd))
1216 al=SSL_AD_ILLEGAL_PARAMETER;
1217 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
1220 #endif /* !OPENSSL_NO_DH */
1222 #ifndef OPENSSL_NO_ECDH
1223 else if (alg & SSL_kECDHE)
1226 const EC_GROUP *group;
1228 if ((ecdh=EC_KEY_new()) == NULL)
1230 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1234 /* Extract elliptic curve parameters and the
1235 * server's ephemeral ECDH public key.
1236 * Keep accumulating lengths of various components in
1237 * param_len and make sure it never exceeds n.
1240 /* XXX: For now we only support named (not generic) curves
1241 * and the ECParameters in this case is just three bytes.
1244 if ((param_len > n) ||
1245 (*p != NAMED_CURVE_TYPE) ||
1246 ((curve_nid = curve_id2nid(*(p + 2))) == 0))
1248 al=SSL_AD_INTERNAL_ERROR;
1249 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS);
1253 ngroup = EC_GROUP_new_by_curve_name(curve_nid);
1256 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
1259 if (EC_KEY_set_group(ecdh, ngroup) == 0)
1261 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
1264 EC_GROUP_free(ngroup);
1266 group = EC_KEY_get0_group(ecdh);
1268 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
1269 (EC_GROUP_get_degree(group) > 163))
1271 al=SSL_AD_EXPORT_RESTRICTION;
1272 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
1278 /* Next, get the encoded ECPoint */
1279 if (((srvr_ecpoint = EC_POINT_new(group)) == NULL) ||
1280 ((bn_ctx = BN_CTX_new()) == NULL))
1282 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1286 encoded_pt_len = *p; /* length of encoded point */
1288 param_len += (1 + encoded_pt_len);
1289 if ((param_len > n) ||
1290 (EC_POINT_oct2point(group, srvr_ecpoint,
1291 p, encoded_pt_len, bn_ctx) == 0))
1293 al=SSL_AD_DECODE_ERROR;
1294 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_ECPOINT);
1301 /* The ECC/TLS specification does not mention
1302 * the use of DSA to sign ECParameters in the server
1303 * key exchange message. We do support RSA and ECDSA.
1306 #ifndef OPENSSL_NO_RSA
1307 else if (alg & SSL_aRSA)
1308 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1310 #ifndef OPENSSL_NO_ECDSA
1311 else if (alg & SSL_aECDSA)
1312 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
1314 /* else anonymous ECDH, so no certificate or pkey. */
1315 EC_KEY_set_public_key(ecdh, srvr_ecpoint);
1316 s->session->sess_cert->peer_ecdh_tmp=ecdh;
1318 BN_CTX_free(bn_ctx);
1319 EC_POINT_free(srvr_ecpoint);
1320 srvr_ecpoint = NULL;
1322 else if (alg & SSL_kECDH)
1324 al=SSL_AD_UNEXPECTED_MESSAGE;
1325 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNEXPECTED_MESSAGE);
1328 #endif /* !OPENSSL_NO_ECDH */
1331 al=SSL_AD_HANDSHAKE_FAILURE;
1332 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
1337 /* p points to the next byte, there are 'n' bytes left */
1339 /* if it was signed, check the signature */
1344 j=EVP_PKEY_size(pkey);
1346 if ((i != n) || (n > j) || (n <= 0))
1348 /* wrong packet length */
1349 al=SSL_AD_DECODE_ERROR;
1350 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_WRONG_SIGNATURE_LENGTH);
1354 #ifndef OPENSSL_NO_RSA
1355 if (pkey->type == EVP_PKEY_RSA)
1361 for (num=2; num > 0; num--)
1363 EVP_DigestInit_ex(&md_ctx,(num == 2)
1364 ?s->ctx->md5:s->ctx->sha1, NULL);
1365 EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1366 EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1367 EVP_DigestUpdate(&md_ctx,param,param_len);
1368 EVP_DigestFinal_ex(&md_ctx,q,(unsigned int *)&i);
1372 i=RSA_verify(NID_md5_sha1, md_buf, j, p, n,
1376 al=SSL_AD_DECRYPT_ERROR;
1377 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_DECRYPT);
1383 al=SSL_AD_DECRYPT_ERROR;
1384 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1390 #ifndef OPENSSL_NO_DSA
1391 if (pkey->type == EVP_PKEY_DSA)
1394 EVP_VerifyInit_ex(&md_ctx,EVP_dss1(), NULL);
1395 EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1396 EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1397 EVP_VerifyUpdate(&md_ctx,param,param_len);
1398 if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey))
1401 al=SSL_AD_DECRYPT_ERROR;
1402 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1408 #ifndef OPENSSL_NO_ECDSA
1409 if (pkey->type == EVP_PKEY_EC)
1411 /* let's do ECDSA */
1412 EVP_VerifyInit_ex(&md_ctx,EVP_ecdsa(), NULL);
1413 EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1414 EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1415 EVP_VerifyUpdate(&md_ctx,param,param_len);
1416 if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey))
1419 al=SSL_AD_DECRYPT_ERROR;
1420 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1427 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1433 /* still data left over */
1434 if (!(alg & SSL_aNULL))
1436 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1441 al=SSL_AD_DECODE_ERROR;
1442 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_EXTRA_DATA_IN_MESSAGE);
1446 EVP_PKEY_free(pkey);
1447 EVP_MD_CTX_cleanup(&md_ctx);
1450 ssl3_send_alert(s,SSL3_AL_FATAL,al);
1452 EVP_PKEY_free(pkey);
1453 #ifndef OPENSSL_NO_RSA
1457 #ifndef OPENSSL_NO_DH
1461 #ifndef OPENSSL_NO_ECDH
1462 BN_CTX_free(bn_ctx);
1463 EC_POINT_free(srvr_ecpoint);
1467 EVP_MD_CTX_cleanup(&md_ctx);
1471 int ssl3_get_certificate_request(SSL *s)
1474 unsigned long n,nc,l;
1475 unsigned int llen,ctype_num,i;
1477 const unsigned char *p,*q;
1479 STACK_OF(X509_NAME) *ca_sk=NULL;
1481 n=s->method->ssl_get_message(s,
1482 SSL3_ST_CR_CERT_REQ_A,
1483 SSL3_ST_CR_CERT_REQ_B,
1488 if (!ok) return((int)n);
1490 s->s3->tmp.cert_req=0;
1492 if (s->s3->tmp.message_type == SSL3_MT_SERVER_DONE)
1494 s->s3->tmp.reuse_message=1;
1498 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE_REQUEST)
1500 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
1501 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_WRONG_MESSAGE_TYPE);
1505 /* TLS does not like anon-DH with client cert */
1506 if (s->version > SSL3_VERSION)
1508 l=s->s3->tmp.new_cipher->algorithms;
1511 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
1512 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER);
1517 p=d=(unsigned char *)s->init_msg;
1519 if ((ca_sk=sk_X509_NAME_new(ca_dn_cmp)) == NULL)
1521 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
1525 /* get the certificate types */
1527 if (ctype_num > SSL3_CT_NUMBER)
1528 ctype_num=SSL3_CT_NUMBER;
1529 for (i=0; i<ctype_num; i++)
1530 s->s3->tmp.ctype[i]= p[i];
1533 /* get the CA RDNs */
1538 out=fopen("/tmp/vsign.der","w");
1539 fwrite(p,1,llen,out);
1544 if ((llen+ctype_num+2+1) != n)
1546 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1547 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_LENGTH_MISMATCH);
1551 for (nc=0; nc<llen; )
1554 if ((l+nc+2) > llen)
1556 if ((s->options & SSL_OP_NETSCAPE_CA_DN_BUG))
1557 goto cont; /* netscape bugs */
1558 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1559 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_TOO_LONG);
1565 if ((xn=d2i_X509_NAME(NULL,&q,l)) == NULL)
1567 /* If netscape tolerance is on, ignore errors */
1568 if (s->options & SSL_OP_NETSCAPE_CA_DN_BUG)
1572 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1573 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_ASN1_LIB);
1580 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1581 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_LENGTH_MISMATCH);
1584 if (!sk_X509_NAME_push(ca_sk,xn))
1586 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
1600 /* we should setup a certificate to return.... */
1601 s->s3->tmp.cert_req=1;
1602 s->s3->tmp.ctype_num=ctype_num;
1603 if (s->s3->tmp.ca_names != NULL)
1604 sk_X509_NAME_pop_free(s->s3->tmp.ca_names,X509_NAME_free);
1605 s->s3->tmp.ca_names=ca_sk;
1610 if (ca_sk != NULL) sk_X509_NAME_pop_free(ca_sk,X509_NAME_free);
1614 static int ca_dn_cmp(const X509_NAME * const *a, const X509_NAME * const *b)
1616 return(X509_NAME_cmp(*a,*b));
1619 int ssl3_get_server_done(SSL *s)
1624 n=s->method->ssl_get_message(s,
1625 SSL3_ST_CR_SRVR_DONE_A,
1626 SSL3_ST_CR_SRVR_DONE_B,
1627 SSL3_MT_SERVER_DONE,
1628 30, /* should be very small, like 0 :-) */
1631 if (!ok) return((int)n);
1634 /* should contain no data */
1635 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1636 SSLerr(SSL_F_SSL3_GET_SERVER_DONE,SSL_R_LENGTH_MISMATCH);
1644 int ssl3_send_client_key_exchange(SSL *s)
1646 unsigned char *p,*d;
1649 #ifndef OPENSSL_NO_RSA
1651 EVP_PKEY *pkey=NULL;
1653 #ifndef OPENSSL_NO_KRB5
1655 #endif /* OPENSSL_NO_KRB5 */
1656 #ifndef OPENSSL_NO_ECDH
1657 EC_KEY *clnt_ecdh = NULL;
1658 const EC_POINT *srvr_ecpoint = NULL;
1659 EVP_PKEY *srvr_pub_pkey = NULL;
1660 unsigned char *encodedPoint = NULL;
1661 int encoded_pt_len = 0;
1662 BN_CTX * bn_ctx = NULL;
1665 if (s->state == SSL3_ST_CW_KEY_EXCH_A)
1667 d=(unsigned char *)s->init_buf->data;
1670 l=s->s3->tmp.new_cipher->algorithms;
1672 /* Fool emacs indentation */
1674 #ifndef OPENSSL_NO_RSA
1675 else if (l & SSL_kRSA)
1678 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
1680 if (s->session->sess_cert->peer_rsa_tmp != NULL)
1681 rsa=s->session->sess_cert->peer_rsa_tmp;
1684 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1685 if ((pkey == NULL) ||
1686 (pkey->type != EVP_PKEY_RSA) ||
1687 (pkey->pkey.rsa == NULL))
1689 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1693 EVP_PKEY_free(pkey);
1696 tmp_buf[0]=s->client_version>>8;
1697 tmp_buf[1]=s->client_version&0xff;
1698 if (RAND_bytes(&(tmp_buf[2]),sizeof tmp_buf-2) <= 0)
1701 s->session->master_key_length=sizeof tmp_buf;
1704 /* Fix buf for TLS and beyond */
1705 if (s->version > SSL3_VERSION)
1707 n=RSA_public_encrypt(sizeof tmp_buf,
1708 tmp_buf,p,rsa,RSA_PKCS1_PADDING);
1710 if (s->options & SSL_OP_PKCS1_CHECK_1) p[1]++;
1711 if (s->options & SSL_OP_PKCS1_CHECK_2) tmp_buf[0]=0x70;
1715 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_BAD_RSA_ENCRYPT);
1719 /* Fix buf for TLS and beyond */
1720 if (s->version > SSL3_VERSION)
1726 s->session->master_key_length=
1727 s->method->ssl3_enc->generate_master_secret(s,
1728 s->session->master_key,
1729 tmp_buf,sizeof tmp_buf);
1730 OPENSSL_cleanse(tmp_buf,sizeof tmp_buf);
1733 #ifndef OPENSSL_NO_KRB5
1734 else if (l & SSL_kKRB5)
1736 krb5_error_code krb5rc;
1737 KSSL_CTX *kssl_ctx = s->kssl_ctx;
1738 /* krb5_data krb5_ap_req; */
1739 krb5_data *enc_ticket;
1740 krb5_data authenticator, *authp = NULL;
1741 EVP_CIPHER_CTX ciph_ctx;
1742 EVP_CIPHER *enc = NULL;
1743 unsigned char iv[EVP_MAX_IV_LENGTH];
1744 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
1745 unsigned char epms[SSL_MAX_MASTER_KEY_LENGTH
1746 + EVP_MAX_IV_LENGTH];
1747 int padl, outl = sizeof(epms);
1749 EVP_CIPHER_CTX_init(&ciph_ctx);
1752 printf("ssl3_send_client_key_exchange(%lx & %lx)\n",
1754 #endif /* KSSL_DEBUG */
1758 if (KRB5SENDAUTH) authp = &authenticator;
1759 #endif /* KRB5SENDAUTH */
1761 krb5rc = kssl_cget_tkt(kssl_ctx, &enc_ticket, authp,
1763 enc = kssl_map_enc(kssl_ctx->enctype);
1768 printf("kssl_cget_tkt rtn %d\n", krb5rc);
1769 if (krb5rc && kssl_err.text)
1770 printf("kssl_cget_tkt kssl_err=%s\n", kssl_err.text);
1772 #endif /* KSSL_DEBUG */
1776 ssl3_send_alert(s,SSL3_AL_FATAL,
1777 SSL_AD_HANDSHAKE_FAILURE);
1778 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1783 /* 20010406 VRS - Earlier versions used KRB5 AP_REQ
1784 ** in place of RFC 2712 KerberosWrapper, as in:
1786 ** Send ticket (copy to *p, set n = length)
1787 ** n = krb5_ap_req.length;
1788 ** memcpy(p, krb5_ap_req.data, krb5_ap_req.length);
1789 ** if (krb5_ap_req.data)
1790 ** kssl_krb5_free_data_contents(NULL,&krb5_ap_req);
1792 ** Now using real RFC 2712 KerberosWrapper
1793 ** (Thanks to Simon Wilkinson <sxw@sxw.org.uk>)
1794 ** Note: 2712 "opaque" types are here replaced
1795 ** with a 2-byte length followed by the value.
1797 ** KerberosWrapper= xx xx asn1ticket 0 0 xx xx encpms
1798 ** Where "xx xx" = length bytes. Shown here with
1799 ** optional authenticator omitted.
1802 /* KerberosWrapper.Ticket */
1803 s2n(enc_ticket->length,p);
1804 memcpy(p, enc_ticket->data, enc_ticket->length);
1805 p+= enc_ticket->length;
1806 n = enc_ticket->length + 2;
1808 /* KerberosWrapper.Authenticator */
1809 if (authp && authp->length)
1811 s2n(authp->length,p);
1812 memcpy(p, authp->data, authp->length);
1814 n+= authp->length + 2;
1822 s2n(0,p);/* null authenticator length */
1826 if (RAND_bytes(tmp_buf,sizeof tmp_buf) <= 0)
1829 /* 20010420 VRS. Tried it this way; failed.
1830 ** EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,NULL);
1831 ** EVP_CIPHER_CTX_set_key_length(&ciph_ctx,
1832 ** kssl_ctx->length);
1833 ** EVP_EncryptInit_ex(&ciph_ctx,NULL, key,iv);
1836 memset(iv, 0, sizeof iv); /* per RFC 1510 */
1837 EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,
1839 EVP_EncryptUpdate(&ciph_ctx,epms,&outl,tmp_buf,
1841 EVP_EncryptFinal_ex(&ciph_ctx,&(epms[outl]),&padl);
1843 if (outl > sizeof epms)
1845 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
1848 EVP_CIPHER_CTX_cleanup(&ciph_ctx);
1850 /* KerberosWrapper.EncryptedPreMasterSecret */
1852 memcpy(p, epms, outl);
1856 s->session->master_key_length=
1857 s->method->ssl3_enc->generate_master_secret(s,
1858 s->session->master_key,
1859 tmp_buf, sizeof tmp_buf);
1861 OPENSSL_cleanse(tmp_buf, sizeof tmp_buf);
1862 OPENSSL_cleanse(epms, outl);
1865 #ifndef OPENSSL_NO_DH
1866 else if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
1868 DH *dh_srvr,*dh_clnt;
1870 if (s->session->sess_cert->peer_dh_tmp != NULL)
1871 dh_srvr=s->session->sess_cert->peer_dh_tmp;
1874 /* we get them from the cert */
1875 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1876 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_DH_PARAMETERS);
1880 /* generate a new random key */
1881 if ((dh_clnt=DHparams_dup(dh_srvr)) == NULL)
1883 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1886 if (!DH_generate_key(dh_clnt))
1888 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1892 /* use the 'p' output buffer for the DH key, but
1893 * make sure to clear it out afterwards */
1895 n=DH_compute_key(p,dh_srvr->pub_key,dh_clnt);
1899 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1903 /* generate master key from the result */
1904 s->session->master_key_length=
1905 s->method->ssl3_enc->generate_master_secret(s,
1906 s->session->master_key,p,n);
1910 /* send off the data */
1911 n=BN_num_bytes(dh_clnt->pub_key);
1913 BN_bn2bin(dh_clnt->pub_key,p);
1918 /* perhaps clean things up a bit EAY EAY EAY EAY*/
1922 #ifndef OPENSSL_NO_ECDH
1923 else if ((l & SSL_kECDH) || (l & SSL_kECDHE))
1925 const EC_GROUP *srvr_group = NULL;
1927 int ecdh_clnt_cert = 0;
1930 /* Did we send out the client's
1931 * ECDH share for use in premaster
1932 * computation as part of client certificate?
1933 * If so, set ecdh_clnt_cert to 1.
1935 if ((l & SSL_kECDH) && (s->cert != NULL))
1937 /* XXX: For now, we do not support client
1938 * authentication using ECDH certificates.
1939 * To add such support, one needs to add
1940 * code that checks for appropriate
1941 * conditions and sets ecdh_clnt_cert to 1.
1942 * For example, the cert have an ECC
1943 * key on the same curve as the server's
1944 * and the key should be authorized for
1947 * One also needs to add code in ssl3_connect
1948 * to skip sending the certificate verify
1951 * if ((s->cert->key->privatekey != NULL) &&
1952 * (s->cert->key->privatekey->type ==
1953 * EVP_PKEY_EC) && ...)
1954 * ecdh_clnt_cert = 1;
1958 if (s->session->sess_cert->peer_ecdh_tmp != NULL)
1960 tkey = s->session->sess_cert->peer_ecdh_tmp;
1964 /* Get the Server Public Key from Cert */
1965 srvr_pub_pkey = X509_get_pubkey(s->session-> \
1966 sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
1967 if ((srvr_pub_pkey == NULL) ||
1968 (srvr_pub_pkey->type != EVP_PKEY_EC) ||
1969 (srvr_pub_pkey->pkey.ec == NULL))
1971 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1972 ERR_R_INTERNAL_ERROR);
1976 tkey = srvr_pub_pkey->pkey.ec;
1979 srvr_group = EC_KEY_get0_group(tkey);
1980 srvr_ecpoint = EC_KEY_get0_public_key(tkey);
1982 if ((srvr_group == NULL) || (srvr_ecpoint == NULL))
1984 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1985 ERR_R_INTERNAL_ERROR);
1989 if ((clnt_ecdh=EC_KEY_new()) == NULL)
1991 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1995 if (!EC_KEY_set_group(clnt_ecdh, srvr_group))
1997 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_EC_LIB);
2002 /* Reuse key info from our certificate
2003 * We only need our private key to perform
2004 * the ECDH computation.
2006 const BIGNUM *priv_key;
2007 tkey = s->cert->key->privatekey->pkey.ec;
2008 priv_key = EC_KEY_get0_private_key(tkey);
2009 if (priv_key == NULL)
2011 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
2014 if (!EC_KEY_set_private_key(clnt_ecdh, priv_key))
2016 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_EC_LIB);
2022 /* Generate a new ECDH key pair */
2023 if (!(EC_KEY_generate_key(clnt_ecdh)))
2025 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_ECDH_LIB);
2030 /* use the 'p' output buffer for the ECDH key, but
2031 * make sure to clear it out afterwards
2034 field_size = EC_GROUP_get_degree(srvr_group);
2035 if (field_size <= 0)
2037 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2041 n=ECDH_compute_key(p, (field_size+7)/8, srvr_ecpoint, clnt_ecdh, NULL);
2044 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2049 /* generate master key from the result */
2050 s->session->master_key_length = s->method->ssl3_enc \
2051 -> generate_master_secret(s,
2052 s->session->master_key,
2055 memset(p, 0, n); /* clean up */
2059 /* Send empty client key exch message */
2064 /* First check the size of encoding and
2065 * allocate memory accordingly.
2068 EC_POINT_point2oct(srvr_group,
2069 EC_KEY_get0_public_key(clnt_ecdh),
2070 POINT_CONVERSION_UNCOMPRESSED,
2073 encodedPoint = (unsigned char *)
2074 OPENSSL_malloc(encoded_pt_len *
2075 sizeof(unsigned char));
2076 bn_ctx = BN_CTX_new();
2077 if ((encodedPoint == NULL) ||
2080 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
2084 /* Encode the public key */
2085 n = EC_POINT_point2oct(srvr_group,
2086 EC_KEY_get0_public_key(clnt_ecdh),
2087 POINT_CONVERSION_UNCOMPRESSED,
2088 encodedPoint, encoded_pt_len, bn_ctx);
2090 *p = n; /* length of encoded point */
2091 /* Encoded point will be copied here */
2093 /* copy the point */
2094 memcpy((unsigned char *)p, encodedPoint, n);
2095 /* increment n to account for length field */
2099 /* Free allocated memory */
2100 BN_CTX_free(bn_ctx);
2101 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2102 if (clnt_ecdh != NULL)
2103 EC_KEY_free(clnt_ecdh);
2104 EVP_PKEY_free(srvr_pub_pkey);
2106 #endif /* !OPENSSL_NO_ECDH */
2109 ssl3_send_alert(s, SSL3_AL_FATAL,
2110 SSL_AD_HANDSHAKE_FAILURE);
2111 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2112 ERR_R_INTERNAL_ERROR);
2116 *(d++)=SSL3_MT_CLIENT_KEY_EXCHANGE;
2119 s->state=SSL3_ST_CW_KEY_EXCH_B;
2120 /* number of bytes to write */
2125 /* SSL3_ST_CW_KEY_EXCH_B */
2126 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2128 #ifndef OPENSSL_NO_ECDH
2129 BN_CTX_free(bn_ctx);
2130 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2131 if (clnt_ecdh != NULL)
2132 EC_KEY_free(clnt_ecdh);
2133 EVP_PKEY_free(srvr_pub_pkey);
2138 int ssl3_send_client_verify(SSL *s)
2140 unsigned char *p,*d;
2141 unsigned char data[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];
2143 #ifndef OPENSSL_NO_RSA
2147 #if !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
2151 if (s->state == SSL3_ST_CW_CERT_VRFY_A)
2153 d=(unsigned char *)s->init_buf->data;
2155 pkey=s->cert->key->privatekey;
2157 s->method->ssl3_enc->cert_verify_mac(s,&(s->s3->finish_dgst2),
2158 &(data[MD5_DIGEST_LENGTH]));
2160 #ifndef OPENSSL_NO_RSA
2161 if (pkey->type == EVP_PKEY_RSA)
2163 s->method->ssl3_enc->cert_verify_mac(s,
2164 &(s->s3->finish_dgst1),&(data[0]));
2165 if (RSA_sign(NID_md5_sha1, data,
2166 MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH,
2167 &(p[2]), &u, pkey->pkey.rsa) <= 0 )
2169 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_RSA_LIB);
2177 #ifndef OPENSSL_NO_DSA
2178 if (pkey->type == EVP_PKEY_DSA)
2180 if (!DSA_sign(pkey->save_type,
2181 &(data[MD5_DIGEST_LENGTH]),
2182 SHA_DIGEST_LENGTH,&(p[2]),
2183 (unsigned int *)&j,pkey->pkey.dsa))
2185 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_DSA_LIB);
2193 #ifndef OPENSSL_NO_ECDSA
2194 if (pkey->type == EVP_PKEY_EC)
2196 if (!ECDSA_sign(pkey->save_type,
2197 &(data[MD5_DIGEST_LENGTH]),
2198 SHA_DIGEST_LENGTH,&(p[2]),
2199 (unsigned int *)&j,pkey->pkey.ec))
2201 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,
2211 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_INTERNAL_ERROR);
2214 *(d++)=SSL3_MT_CERTIFICATE_VERIFY;
2217 s->state=SSL3_ST_CW_CERT_VRFY_B;
2218 s->init_num=(int)n+4;
2221 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2226 int ssl3_send_client_certificate(SSL *s)
2229 EVP_PKEY *pkey=NULL;
2233 if (s->state == SSL3_ST_CW_CERT_A)
2235 if ((s->cert == NULL) ||
2236 (s->cert->key->x509 == NULL) ||
2237 (s->cert->key->privatekey == NULL))
2238 s->state=SSL3_ST_CW_CERT_B;
2240 s->state=SSL3_ST_CW_CERT_C;
2243 /* We need to get a client cert */
2244 if (s->state == SSL3_ST_CW_CERT_B)
2246 /* If we get an error, we need to
2247 * ssl->rwstate=SSL_X509_LOOKUP; return(-1);
2248 * We then get retied later */
2250 if (s->ctx->client_cert_cb != NULL)
2251 i=s->ctx->client_cert_cb(s,&(x509),&(pkey));
2254 s->rwstate=SSL_X509_LOOKUP;
2257 s->rwstate=SSL_NOTHING;
2258 if ((i == 1) && (pkey != NULL) && (x509 != NULL))
2260 s->state=SSL3_ST_CW_CERT_B;
2261 if ( !SSL_use_certificate(s,x509) ||
2262 !SSL_use_PrivateKey(s,pkey))
2268 SSLerr(SSL_F_SSL3_SEND_CLIENT_CERTIFICATE,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK);
2271 if (x509 != NULL) X509_free(x509);
2272 if (pkey != NULL) EVP_PKEY_free(pkey);
2275 if (s->version == SSL3_VERSION)
2277 s->s3->tmp.cert_req=0;
2278 ssl3_send_alert(s,SSL3_AL_WARNING,SSL_AD_NO_CERTIFICATE);
2283 s->s3->tmp.cert_req=2;
2287 /* Ok, we have a cert */
2288 s->state=SSL3_ST_CW_CERT_C;
2291 if (s->state == SSL3_ST_CW_CERT_C)
2293 s->state=SSL3_ST_CW_CERT_D;
2294 l=ssl3_output_cert_chain(s,
2295 (s->s3->tmp.cert_req == 2)?NULL:s->cert->key->x509);
2299 /* SSL3_ST_CW_CERT_D */
2300 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2303 #define has_bits(i,m) (((i)&(m)) == (m))
2305 int ssl3_check_cert_and_algorithm(SSL *s)
2309 EVP_PKEY *pkey=NULL;
2311 #ifndef OPENSSL_NO_RSA
2314 #ifndef OPENSSL_NO_DH
2318 sc=s->session->sess_cert;
2322 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,ERR_R_INTERNAL_ERROR);
2326 algs=s->s3->tmp.new_cipher->algorithms;
2328 /* we don't have a certificate */
2329 if (algs & (SSL_aDH|SSL_aNULL|SSL_aKRB5))
2332 #ifndef OPENSSL_NO_RSA
2333 rsa=s->session->sess_cert->peer_rsa_tmp;
2335 #ifndef OPENSSL_NO_DH
2336 dh=s->session->sess_cert->peer_dh_tmp;
2339 /* This is the passed certificate */
2341 idx=sc->peer_cert_type;
2342 #ifndef OPENSSL_NO_ECDH
2343 if (idx == SSL_PKEY_ECC)
2345 if (check_srvr_ecc_cert_and_alg(sc->peer_pkeys[idx].x509,
2346 s->s3->tmp.new_cipher) == 0)
2347 { /* check failed */
2348 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_BAD_ECC_CERT);
2357 pkey=X509_get_pubkey(sc->peer_pkeys[idx].x509);
2358 i=X509_certificate_type(sc->peer_pkeys[idx].x509,pkey);
2359 EVP_PKEY_free(pkey);
2362 /* Check that we have a certificate if we require one */
2363 if ((algs & SSL_aRSA) && !has_bits(i,EVP_PK_RSA|EVP_PKT_SIGN))
2365 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_SIGNING_CERT);
2368 #ifndef OPENSSL_NO_DSA
2369 else if ((algs & SSL_aDSS) && !has_bits(i,EVP_PK_DSA|EVP_PKT_SIGN))
2371 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DSA_SIGNING_CERT);
2375 #ifndef OPENSSL_NO_RSA
2376 if ((algs & SSL_kRSA) &&
2377 !(has_bits(i,EVP_PK_RSA|EVP_PKT_ENC) || (rsa != NULL)))
2379 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_ENCRYPTING_CERT);
2383 #ifndef OPENSSL_NO_DH
2384 if ((algs & SSL_kEDH) &&
2385 !(has_bits(i,EVP_PK_DH|EVP_PKT_EXCH) || (dh != NULL)))
2387 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_KEY);
2390 else if ((algs & SSL_kDHr) && !has_bits(i,EVP_PK_DH|EVP_PKS_RSA))
2392 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_RSA_CERT);
2395 #ifndef OPENSSL_NO_DSA
2396 else if ((algs & SSL_kDHd) && !has_bits(i,EVP_PK_DH|EVP_PKS_DSA))
2398 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_DSA_CERT);
2404 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) && !has_bits(i,EVP_PKT_EXP))
2406 #ifndef OPENSSL_NO_RSA
2407 if (algs & SSL_kRSA)
2410 || RSA_size(rsa)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2412 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_RSA_KEY);
2418 #ifndef OPENSSL_NO_DH
2419 if (algs & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
2422 || DH_size(dh)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2424 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_DH_KEY);
2431 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);
2437 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
2443 #ifndef OPENSSL_NO_ECDH
2444 /* This is the complement of nid2curve_id in s3_srvr.c. */
2445 static int curve_id2nid(int curve_id)
2447 /* ECC curves from draft-ietf-tls-ecc-01.txt (Mar 15, 2001)
2448 * (no changes in draft-ietf-tls-ecc-03.txt [June 2003]) */
2449 static int nid_list[26] =
2452 NID_sect163k1, /* sect163k1 (1) */
2453 NID_sect163r1, /* sect163r1 (2) */
2454 NID_sect163r2, /* sect163r2 (3) */
2455 NID_sect193r1, /* sect193r1 (4) */
2456 NID_sect193r2, /* sect193r2 (5) */
2457 NID_sect233k1, /* sect233k1 (6) */
2458 NID_sect233r1, /* sect233r1 (7) */
2459 NID_sect239k1, /* sect239k1 (8) */
2460 NID_sect283k1, /* sect283k1 (9) */
2461 NID_sect283r1, /* sect283r1 (10) */
2462 NID_sect409k1, /* sect409k1 (11) */
2463 NID_sect409r1, /* sect409r1 (12) */
2464 NID_sect571k1, /* sect571k1 (13) */
2465 NID_sect571r1, /* sect571r1 (14) */
2466 NID_secp160k1, /* secp160k1 (15) */
2467 NID_secp160r1, /* secp160r1 (16) */
2468 NID_secp160r2, /* secp160r2 (17) */
2469 NID_secp192k1, /* secp192k1 (18) */
2470 NID_X9_62_prime192v1, /* secp192r1 (19) */
2471 NID_secp224k1, /* secp224k1 (20) */
2472 NID_secp224r1, /* secp224r1 (21) */
2473 NID_secp256k1, /* secp256k1 (22) */
2474 NID_X9_62_prime256v1, /* secp256r1 (23) */
2475 NID_secp384r1, /* secp384r1 (24) */
2476 NID_secp521r1 /* secp521r1 (25) */
2479 if ((curve_id < 1) || (curve_id > 25)) return 0;
2481 return nid_list[curve_id];