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;
258 #ifndef OPENSSL_NO_TLSEXT
261 switch (ssl_check_tlsext(s,&al))
263 case SSL_TLSEXT_ERR_ALERT_FATAL:
264 ssl3_send_alert(s,SSL3_AL_FATAL,al);
265 SSLerr(SSL_F_SSL3_CONNECT,SSL_R_SERVERHELLO_TLS_EXT);
269 case SSL_TLSEXT_ERR_ALERT_WARNING:
270 ssl3_send_alert(s,SSL3_AL_WARNING,al);
278 s->state=SSL3_ST_CR_FINISHED_A;
280 s->state=SSL3_ST_CR_CERT_A;
284 case SSL3_ST_CR_CERT_A:
285 case SSL3_ST_CR_CERT_B:
286 /* Check if it is anon DH/ECDH */
287 if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
289 ret=ssl3_get_server_certificate(s);
290 if (ret <= 0) goto end;
294 s->state=SSL3_ST_CR_KEY_EXCH_A;
298 case SSL3_ST_CR_KEY_EXCH_A:
299 case SSL3_ST_CR_KEY_EXCH_B:
300 ret=ssl3_get_key_exchange(s);
301 if (ret <= 0) goto end;
302 s->state=SSL3_ST_CR_CERT_REQ_A;
305 /* at this point we check that we have the
306 * required stuff from the server */
307 if (!ssl3_check_cert_and_algorithm(s))
314 case SSL3_ST_CR_CERT_REQ_A:
315 case SSL3_ST_CR_CERT_REQ_B:
316 ret=ssl3_get_certificate_request(s);
317 if (ret <= 0) goto end;
318 s->state=SSL3_ST_CR_SRVR_DONE_A;
322 case SSL3_ST_CR_SRVR_DONE_A:
323 case SSL3_ST_CR_SRVR_DONE_B:
324 ret=ssl3_get_server_done(s);
325 if (ret <= 0) goto end;
326 if (s->s3->tmp.cert_req)
327 s->state=SSL3_ST_CW_CERT_A;
329 s->state=SSL3_ST_CW_KEY_EXCH_A;
334 case SSL3_ST_CW_CERT_A:
335 case SSL3_ST_CW_CERT_B:
336 case SSL3_ST_CW_CERT_C:
337 case SSL3_ST_CW_CERT_D:
338 ret=ssl3_send_client_certificate(s);
339 if (ret <= 0) goto end;
340 s->state=SSL3_ST_CW_KEY_EXCH_A;
344 case SSL3_ST_CW_KEY_EXCH_A:
345 case SSL3_ST_CW_KEY_EXCH_B:
346 ret=ssl3_send_client_key_exchange(s);
347 if (ret <= 0) goto end;
348 l=s->s3->tmp.new_cipher->algorithms;
349 /* EAY EAY EAY need to check for DH fix cert
351 /* For TLS, cert_req is set to 2, so a cert chain
352 * of nothing is sent, but no verify packet is sent */
353 /* XXX: For now, we do not support client
354 * authentication in ECDH cipher suites with
355 * ECDH (rather than ECDSA) certificates.
356 * We need to skip the certificate verify
357 * message when client's ECDH public key is sent
358 * inside the client certificate.
360 if (s->s3->tmp.cert_req == 1)
362 s->state=SSL3_ST_CW_CERT_VRFY_A;
366 s->state=SSL3_ST_CW_CHANGE_A;
367 s->s3->change_cipher_spec=0;
373 case SSL3_ST_CW_CERT_VRFY_A:
374 case SSL3_ST_CW_CERT_VRFY_B:
375 ret=ssl3_send_client_verify(s);
376 if (ret <= 0) goto end;
377 s->state=SSL3_ST_CW_CHANGE_A;
379 s->s3->change_cipher_spec=0;
382 case SSL3_ST_CW_CHANGE_A:
383 case SSL3_ST_CW_CHANGE_B:
384 ret=ssl3_send_change_cipher_spec(s,
385 SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B);
386 if (ret <= 0) goto end;
387 s->state=SSL3_ST_CW_FINISHED_A;
390 s->session->cipher=s->s3->tmp.new_cipher;
391 #ifdef OPENSSL_NO_COMP
392 s->session->compress_meth=0;
394 if (s->s3->tmp.new_compression == NULL)
395 s->session->compress_meth=0;
397 s->session->compress_meth=
398 s->s3->tmp.new_compression->id;
400 if (!s->method->ssl3_enc->setup_key_block(s))
406 if (!s->method->ssl3_enc->change_cipher_state(s,
407 SSL3_CHANGE_CIPHER_CLIENT_WRITE))
415 case SSL3_ST_CW_FINISHED_A:
416 case SSL3_ST_CW_FINISHED_B:
417 ret=ssl3_send_finished(s,
418 SSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B,
419 s->method->ssl3_enc->client_finished_label,
420 s->method->ssl3_enc->client_finished_label_len);
421 if (ret <= 0) goto end;
422 s->state=SSL3_ST_CW_FLUSH;
425 s->s3->flags&= ~SSL3_FLAGS_POP_BUFFER;
428 s->s3->tmp.next_state=SSL_ST_OK;
429 if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED)
432 s->s3->flags|=SSL3_FLAGS_POP_BUFFER;
433 s->s3->delay_buf_pop_ret=0;
438 s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A;
443 case SSL3_ST_CR_FINISHED_A:
444 case SSL3_ST_CR_FINISHED_B:
446 ret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A,
447 SSL3_ST_CR_FINISHED_B);
448 if (ret <= 0) goto end;
451 s->state=SSL3_ST_CW_CHANGE_A;
457 case SSL3_ST_CW_FLUSH:
458 /* number of bytes to be flushed */
459 num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);
462 s->rwstate=SSL_WRITING;
463 num1=BIO_flush(s->wbio);
464 if (num1 <= 0) { ret= -1; goto end; }
465 s->rwstate=SSL_NOTHING;
468 s->state=s->s3->tmp.next_state;
472 /* clean a few things up */
473 ssl3_cleanup_key_block(s);
475 if (s->init_buf != NULL)
477 BUF_MEM_free(s->init_buf);
481 /* If we are not 'joining' the last two packets,
482 * remove the buffering now */
483 if (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER))
484 ssl_free_wbio_buffer(s);
485 /* else do it later in ssl3_write */
490 ssl_update_cache(s,SSL_SESS_CACHE_CLIENT);
491 if (s->hit) s->ctx->stats.sess_hit++;
495 s->handshake_func=ssl3_connect;
496 s->ctx->stats.sess_connect_good++;
498 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);
504 SSLerr(SSL_F_SSL3_CONNECT,SSL_R_UNKNOWN_STATE);
510 /* did we do anything */
511 if (!s->s3->tmp.reuse_message && !skip)
515 if ((ret=BIO_flush(s->wbio)) <= 0)
519 if ((cb != NULL) && (s->state != state))
523 cb(s,SSL_CB_CONNECT_LOOP,1);
534 cb(s,SSL_CB_CONNECT_EXIT,ret);
539 int ssl3_client_hello(SSL *s)
544 unsigned long Time,l;
545 #ifndef OPENSSL_NO_COMP
550 buf=(unsigned char *)s->init_buf->data;
551 if (s->state == SSL3_ST_CW_CLNT_HELLO_A)
553 if ((s->session == NULL) ||
554 (s->session->ssl_version != s->version) ||
555 (s->session->not_resumable))
557 if (!ssl_get_new_session(s,0))
560 /* else use the pre-loaded session */
562 p=s->s3->client_random;
563 Time=(unsigned long)time(NULL); /* Time */
565 if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0)
568 /* Do the message type and length last */
571 *(p++)=s->version>>8;
572 *(p++)=s->version&0xff;
573 s->client_version=s->version;
576 memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
583 i=s->session->session_id_length;
587 if (i > (int)sizeof(s->session->session_id))
589 SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
592 memcpy(p,s->session->session_id,i);
596 /* Ciphers supported */
597 i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]),0);
600 SSLerr(SSL_F_SSL3_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
607 #ifdef OPENSSL_NO_COMP
611 if ((s->options & SSL_OP_NO_COMPRESSION)
612 || !s->ctx->comp_methods)
615 j=sk_SSL_COMP_num(s->ctx->comp_methods);
619 comp=sk_SSL_COMP_value(s->ctx->comp_methods,i);
623 *(p++)=0; /* Add the NULL method */
624 #ifndef OPENSSL_NO_TLSEXT
625 if ((p = ssl_add_clienthello_tlsext(s, p, buf+SSL3_RT_MAX_PLAIN_LENGTH)) == NULL)
627 SSLerr(SSL_F_SSL3_CLIENT_HELLO,ERR_R_INTERNAL_ERROR);
634 *(d++)=SSL3_MT_CLIENT_HELLO;
637 s->state=SSL3_ST_CW_CLNT_HELLO_B;
638 /* number of bytes to write */
643 /* SSL3_ST_CW_CLNT_HELLO_B */
644 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
649 int ssl3_get_server_hello(SSL *s)
651 STACK_OF(SSL_CIPHER) *sk;
657 #ifndef OPENSSL_NO_COMP
661 n=s->method->ssl_get_message(s,
662 SSL3_ST_CR_SRVR_HELLO_A,
663 SSL3_ST_CR_SRVR_HELLO_B,
668 if (!ok) return((int)n);
670 if ( SSL_version(s) == DTLS1_VERSION)
672 if ( s->s3->tmp.message_type == DTLS1_MT_HELLO_VERIFY_REQUEST)
674 if ( s->d1->send_cookie == 0)
676 s->s3->tmp.reuse_message = 1;
679 else /* already sent a cookie */
681 al=SSL_AD_UNEXPECTED_MESSAGE;
682 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);
688 if ( s->s3->tmp.message_type != SSL3_MT_SERVER_HELLO)
690 al=SSL_AD_UNEXPECTED_MESSAGE;
691 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);
695 d=p=(unsigned char *)s->init_msg;
697 if ((p[0] != (s->version>>8)) || (p[1] != (s->version&0xff)))
699 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_SSL_VERSION);
700 s->version=(s->version&0xff00)|p[1];
701 al=SSL_AD_PROTOCOL_VERSION;
706 /* load the server hello data */
707 /* load the server random */
708 memcpy(s->s3->server_random,p,SSL3_RANDOM_SIZE);
711 /* get the session-id */
714 if ((j > sizeof s->session->session_id) || (j > SSL3_SESSION_ID_SIZE))
716 al=SSL_AD_ILLEGAL_PARAMETER;
717 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SSL3_SESSION_ID_TOO_LONG);
721 if (j != 0 && j == s->session->session_id_length
722 && memcmp(p,s->session->session_id,j) == 0)
724 if(s->sid_ctx_length != s->session->sid_ctx_length
725 || memcmp(s->session->sid_ctx,s->sid_ctx,s->sid_ctx_length))
727 /* actually a client application bug */
728 al=SSL_AD_ILLEGAL_PARAMETER;
729 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);
734 else /* a miss or crap from the other end */
736 /* If we were trying for session-id reuse, make a new
737 * SSL_SESSION so we don't stuff up other people */
739 if (s->session->session_id_length > 0)
741 if (!ssl_get_new_session(s,0))
743 al=SSL_AD_INTERNAL_ERROR;
747 s->session->session_id_length=j;
748 memcpy(s->session->session_id,p,j); /* j could be 0 */
751 c=ssl_get_cipher_by_char(s,p);
755 al=SSL_AD_ILLEGAL_PARAMETER;
756 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNKNOWN_CIPHER_RETURNED);
759 p+=ssl_put_cipher_by_char(s,NULL,NULL);
761 sk=ssl_get_ciphers_by_id(s);
762 i=sk_SSL_CIPHER_find(sk,c);
765 /* we did not say we would use this cipher */
766 al=SSL_AD_ILLEGAL_PARAMETER;
767 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_CIPHER_RETURNED);
771 /* Depending on the session caching (internal/external), the cipher
772 and/or cipher_id values may not be set. Make sure that
773 cipher_id is set and use it for comparison. */
774 if (s->session->cipher)
775 s->session->cipher_id = s->session->cipher->id;
776 if (s->hit && (s->session->cipher_id != c->id))
779 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG))
781 al=SSL_AD_ILLEGAL_PARAMETER;
782 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED);
786 s->s3->tmp.new_cipher=c;
788 /* lets get the compression algorithm */
790 #ifdef OPENSSL_NO_COMP
793 al=SSL_AD_ILLEGAL_PARAMETER;
794 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
799 if ((j == 0) || (s->options & SSL_OP_NO_COMPRESSION))
802 comp=ssl3_comp_find(s->ctx->comp_methods,j);
804 if ((j != 0) && (comp == NULL))
806 al=SSL_AD_ILLEGAL_PARAMETER;
807 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
812 s->s3->tmp.new_compression=comp;
815 #ifndef OPENSSL_NO_TLSEXT
817 if (s->version > SSL3_VERSION)
819 if (!ssl_parse_serverhello_tlsext(s,&p,d,n, &al))
821 /* 'al' set by ssl_parse_serverhello_tlsext */
822 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_PARSE_TLS_EXT);
830 /* wrong packet length */
831 al=SSL_AD_DECODE_ERROR;
832 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_PACKET_LENGTH);
838 ssl3_send_alert(s,SSL3_AL_FATAL,al);
843 int ssl3_get_server_certificate(SSL *s)
846 unsigned long n,nc,llen,l;
848 const unsigned char *q,*p;
850 STACK_OF(X509) *sk=NULL;
853 int need_cert = 1; /* VRS: 0=> will allow null cert if auth == KRB5 */
855 n=s->method->ssl_get_message(s,
862 if (!ok) return((int)n);
864 if (s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE)
866 s->s3->tmp.reuse_message=1;
870 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE)
872 al=SSL_AD_UNEXPECTED_MESSAGE;
873 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_BAD_MESSAGE_TYPE);
876 p=d=(unsigned char *)s->init_msg;
878 if ((sk=sk_X509_new_null()) == NULL)
880 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
887 al=SSL_AD_DECODE_ERROR;
888 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_LENGTH_MISMATCH);
891 for (nc=0; nc<llen; )
896 al=SSL_AD_DECODE_ERROR;
897 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
902 x=d2i_X509(NULL,&q,l);
905 al=SSL_AD_BAD_CERTIFICATE;
906 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_ASN1_LIB);
911 al=SSL_AD_DECODE_ERROR;
912 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
915 if (!sk_X509_push(sk,x))
917 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
925 i=ssl_verify_cert_chain(s,sk);
926 if ((s->verify_mode != SSL_VERIFY_NONE) && (!i)
927 #ifndef OPENSSL_NO_KRB5
928 && (s->s3->tmp.new_cipher->algorithms & (SSL_MKEY_MASK|SSL_AUTH_MASK))
929 != (SSL_aKRB5|SSL_kKRB5)
930 #endif /* OPENSSL_NO_KRB5 */
933 al=ssl_verify_alarm_type(s->verify_result);
934 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED);
937 ERR_clear_error(); /* but we keep s->verify_result */
939 sc=ssl_sess_cert_new();
940 if (sc == NULL) goto err;
942 if (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert);
943 s->session->sess_cert=sc;
946 /* Inconsistency alert: cert_chain does include the peer's
947 * certificate, which we don't include in s3_srvr.c */
948 x=sk_X509_value(sk,0);
950 /* VRS 19990621: possible memory leak; sk=null ==> !sk_pop_free() @end*/
952 pkey=X509_get_pubkey(x);
954 /* VRS: allow null cert if auth == KRB5 */
955 need_cert = ((s->s3->tmp.new_cipher->algorithms
956 & (SSL_MKEY_MASK|SSL_AUTH_MASK))
957 == (SSL_aKRB5|SSL_kKRB5))? 0: 1;
960 printf("pkey,x = %p, %p\n", pkey,x);
961 printf("ssl_cert_type(x,pkey) = %d\n", ssl_cert_type(x,pkey));
962 printf("cipher, alg, nc = %s, %lx, %d\n", s->s3->tmp.new_cipher->name,
963 s->s3->tmp.new_cipher->algorithms, need_cert);
964 #endif /* KSSL_DEBUG */
966 if (need_cert && ((pkey == NULL) || EVP_PKEY_missing_parameters(pkey)))
970 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
971 SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS);
975 i=ssl_cert_type(x,pkey);
976 if (need_cert && i < 0)
980 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
981 SSL_R_UNKNOWN_CERTIFICATE_TYPE);
987 sc->peer_cert_type=i;
988 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
989 /* Why would the following ever happen?
990 * We just created sc a couple of lines ago. */
991 if (sc->peer_pkeys[i].x509 != NULL)
992 X509_free(sc->peer_pkeys[i].x509);
993 sc->peer_pkeys[i].x509=x;
994 sc->peer_key= &(sc->peer_pkeys[i]);
996 if (s->session->peer != NULL)
997 X509_free(s->session->peer);
998 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
1003 sc->peer_cert_type=i;
1006 if (s->session->peer != NULL)
1007 X509_free(s->session->peer);
1008 s->session->peer=NULL;
1010 s->session->verify_result = s->verify_result;
1018 ssl3_send_alert(s,SSL3_AL_FATAL,al);
1021 EVP_PKEY_free(pkey);
1023 sk_X509_pop_free(sk,X509_free);
1027 int ssl3_get_key_exchange(SSL *s)
1029 #ifndef OPENSSL_NO_RSA
1030 unsigned char *q,md_buf[EVP_MAX_MD_SIZE*2];
1033 unsigned char *param,*p;
1034 int al,i,j,param_len,ok;
1036 EVP_PKEY *pkey=NULL;
1037 #ifndef OPENSSL_NO_RSA
1040 #ifndef OPENSSL_NO_DH
1043 #ifndef OPENSSL_NO_ECDH
1044 EC_KEY *ecdh = NULL;
1045 BN_CTX *bn_ctx = NULL;
1046 EC_POINT *srvr_ecpoint = NULL;
1048 int encoded_pt_len = 0;
1051 /* use same message size as in ssl3_get_certificate_request()
1052 * as ServerKeyExchange message may be skipped */
1053 n=s->method->ssl_get_message(s,
1054 SSL3_ST_CR_KEY_EXCH_A,
1055 SSL3_ST_CR_KEY_EXCH_B,
1060 if (!ok) return((int)n);
1062 if (s->s3->tmp.message_type != SSL3_MT_SERVER_KEY_EXCHANGE)
1064 s->s3->tmp.reuse_message=1;
1068 param=p=(unsigned char *)s->init_msg;
1070 if (s->session->sess_cert != NULL)
1072 #ifndef OPENSSL_NO_RSA
1073 if (s->session->sess_cert->peer_rsa_tmp != NULL)
1075 RSA_free(s->session->sess_cert->peer_rsa_tmp);
1076 s->session->sess_cert->peer_rsa_tmp=NULL;
1079 #ifndef OPENSSL_NO_DH
1080 if (s->session->sess_cert->peer_dh_tmp)
1082 DH_free(s->session->sess_cert->peer_dh_tmp);
1083 s->session->sess_cert->peer_dh_tmp=NULL;
1086 #ifndef OPENSSL_NO_ECDH
1087 if (s->session->sess_cert->peer_ecdh_tmp)
1089 EC_KEY_free(s->session->sess_cert->peer_ecdh_tmp);
1090 s->session->sess_cert->peer_ecdh_tmp=NULL;
1096 s->session->sess_cert=ssl_sess_cert_new();
1100 alg=s->s3->tmp.new_cipher->algorithms;
1101 EVP_MD_CTX_init(&md_ctx);
1103 #ifndef OPENSSL_NO_RSA
1106 if ((rsa=RSA_new()) == NULL)
1108 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1115 al=SSL_AD_DECODE_ERROR;
1116 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_MODULUS_LENGTH);
1119 if (!(rsa->n=BN_bin2bn(p,i,rsa->n)))
1121 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1130 al=SSL_AD_DECODE_ERROR;
1131 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_E_LENGTH);
1134 if (!(rsa->e=BN_bin2bn(p,i,rsa->e)))
1136 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1142 /* this should be because we are using an export cipher */
1144 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1147 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1150 s->session->sess_cert->peer_rsa_tmp=rsa;
1153 #else /* OPENSSL_NO_RSA */
1157 #ifndef OPENSSL_NO_DH
1158 else if (alg & SSL_kEDH)
1160 if ((dh=DH_new()) == NULL)
1162 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_DH_LIB);
1169 al=SSL_AD_DECODE_ERROR;
1170 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_P_LENGTH);
1173 if (!(dh->p=BN_bin2bn(p,i,NULL)))
1175 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1184 al=SSL_AD_DECODE_ERROR;
1185 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_G_LENGTH);
1188 if (!(dh->g=BN_bin2bn(p,i,NULL)))
1190 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1199 al=SSL_AD_DECODE_ERROR;
1200 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_PUB_KEY_LENGTH);
1203 if (!(dh->pub_key=BN_bin2bn(p,i,NULL)))
1205 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1211 #ifndef OPENSSL_NO_RSA
1213 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1218 #ifndef OPENSSL_NO_DSA
1219 else if (alg & SSL_aDSS)
1220 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].x509);
1222 /* else anonymous DH, so no certificate or pkey. */
1224 s->session->sess_cert->peer_dh_tmp=dh;
1227 else if ((alg & SSL_kDHr) || (alg & SSL_kDHd))
1229 al=SSL_AD_ILLEGAL_PARAMETER;
1230 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
1233 #endif /* !OPENSSL_NO_DH */
1235 #ifndef OPENSSL_NO_ECDH
1236 else if (alg & SSL_kECDHE)
1239 const EC_GROUP *group;
1241 if ((ecdh=EC_KEY_new()) == NULL)
1243 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1247 /* Extract elliptic curve parameters and the
1248 * server's ephemeral ECDH public key.
1249 * Keep accumulating lengths of various components in
1250 * param_len and make sure it never exceeds n.
1253 /* XXX: For now we only support named (not generic) curves
1254 * and the ECParameters in this case is just three bytes.
1257 if ((param_len > n) ||
1258 (*p != NAMED_CURVE_TYPE) ||
1259 ((curve_nid = curve_id2nid(*(p + 2))) == 0))
1261 al=SSL_AD_INTERNAL_ERROR;
1262 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS);
1266 ngroup = EC_GROUP_new_by_curve_name(curve_nid);
1269 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
1272 if (EC_KEY_set_group(ecdh, ngroup) == 0)
1274 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
1277 EC_GROUP_free(ngroup);
1279 group = EC_KEY_get0_group(ecdh);
1281 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
1282 (EC_GROUP_get_degree(group) > 163))
1284 al=SSL_AD_EXPORT_RESTRICTION;
1285 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
1291 /* Next, get the encoded ECPoint */
1292 if (((srvr_ecpoint = EC_POINT_new(group)) == NULL) ||
1293 ((bn_ctx = BN_CTX_new()) == NULL))
1295 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1299 encoded_pt_len = *p; /* length of encoded point */
1301 param_len += (1 + encoded_pt_len);
1302 if ((param_len > n) ||
1303 (EC_POINT_oct2point(group, srvr_ecpoint,
1304 p, encoded_pt_len, bn_ctx) == 0))
1306 al=SSL_AD_DECODE_ERROR;
1307 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_ECPOINT);
1314 /* The ECC/TLS specification does not mention
1315 * the use of DSA to sign ECParameters in the server
1316 * key exchange message. We do support RSA and ECDSA.
1319 #ifndef OPENSSL_NO_RSA
1320 else if (alg & SSL_aRSA)
1321 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1323 #ifndef OPENSSL_NO_ECDSA
1324 else if (alg & SSL_aECDSA)
1325 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
1327 /* else anonymous ECDH, so no certificate or pkey. */
1328 EC_KEY_set_public_key(ecdh, srvr_ecpoint);
1329 s->session->sess_cert->peer_ecdh_tmp=ecdh;
1331 BN_CTX_free(bn_ctx);
1332 EC_POINT_free(srvr_ecpoint);
1333 srvr_ecpoint = NULL;
1335 else if (alg & SSL_kECDH)
1337 al=SSL_AD_UNEXPECTED_MESSAGE;
1338 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNEXPECTED_MESSAGE);
1341 #endif /* !OPENSSL_NO_ECDH */
1344 al=SSL_AD_HANDSHAKE_FAILURE;
1345 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
1350 /* p points to the next byte, there are 'n' bytes left */
1352 /* if it was signed, check the signature */
1357 j=EVP_PKEY_size(pkey);
1359 if ((i != n) || (n > j) || (n <= 0))
1361 /* wrong packet length */
1362 al=SSL_AD_DECODE_ERROR;
1363 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_WRONG_SIGNATURE_LENGTH);
1367 #ifndef OPENSSL_NO_RSA
1368 if (pkey->type == EVP_PKEY_RSA)
1374 for (num=2; num > 0; num--)
1376 EVP_DigestInit_ex(&md_ctx,(num == 2)
1377 ?s->ctx->md5:s->ctx->sha1, NULL);
1378 EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1379 EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1380 EVP_DigestUpdate(&md_ctx,param,param_len);
1381 EVP_DigestFinal_ex(&md_ctx,q,(unsigned int *)&i);
1385 i=RSA_verify(NID_md5_sha1, md_buf, j, p, n,
1389 al=SSL_AD_DECRYPT_ERROR;
1390 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_DECRYPT);
1396 al=SSL_AD_DECRYPT_ERROR;
1397 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1403 #ifndef OPENSSL_NO_DSA
1404 if (pkey->type == EVP_PKEY_DSA)
1407 EVP_VerifyInit_ex(&md_ctx,EVP_dss1(), NULL);
1408 EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1409 EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1410 EVP_VerifyUpdate(&md_ctx,param,param_len);
1411 if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey))
1414 al=SSL_AD_DECRYPT_ERROR;
1415 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1421 #ifndef OPENSSL_NO_ECDSA
1422 if (pkey->type == EVP_PKEY_EC)
1424 /* let's do ECDSA */
1425 EVP_VerifyInit_ex(&md_ctx,EVP_ecdsa(), NULL);
1426 EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1427 EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1428 EVP_VerifyUpdate(&md_ctx,param,param_len);
1429 if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey))
1432 al=SSL_AD_DECRYPT_ERROR;
1433 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1440 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1446 /* still data left over */
1447 if (!(alg & SSL_aNULL))
1449 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1454 al=SSL_AD_DECODE_ERROR;
1455 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_EXTRA_DATA_IN_MESSAGE);
1459 EVP_PKEY_free(pkey);
1460 EVP_MD_CTX_cleanup(&md_ctx);
1463 ssl3_send_alert(s,SSL3_AL_FATAL,al);
1465 EVP_PKEY_free(pkey);
1466 #ifndef OPENSSL_NO_RSA
1470 #ifndef OPENSSL_NO_DH
1474 #ifndef OPENSSL_NO_ECDH
1475 BN_CTX_free(bn_ctx);
1476 EC_POINT_free(srvr_ecpoint);
1480 EVP_MD_CTX_cleanup(&md_ctx);
1484 int ssl3_get_certificate_request(SSL *s)
1487 unsigned long n,nc,l;
1488 unsigned int llen,ctype_num,i;
1490 const unsigned char *p,*q;
1492 STACK_OF(X509_NAME) *ca_sk=NULL;
1494 n=s->method->ssl_get_message(s,
1495 SSL3_ST_CR_CERT_REQ_A,
1496 SSL3_ST_CR_CERT_REQ_B,
1501 if (!ok) return((int)n);
1503 s->s3->tmp.cert_req=0;
1505 if (s->s3->tmp.message_type == SSL3_MT_SERVER_DONE)
1507 s->s3->tmp.reuse_message=1;
1511 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE_REQUEST)
1513 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
1514 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_WRONG_MESSAGE_TYPE);
1518 /* TLS does not like anon-DH with client cert */
1519 if (s->version > SSL3_VERSION)
1521 l=s->s3->tmp.new_cipher->algorithms;
1524 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
1525 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER);
1530 p=d=(unsigned char *)s->init_msg;
1532 if ((ca_sk=sk_X509_NAME_new(ca_dn_cmp)) == NULL)
1534 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
1538 /* get the certificate types */
1540 if (ctype_num > SSL3_CT_NUMBER)
1541 ctype_num=SSL3_CT_NUMBER;
1542 for (i=0; i<ctype_num; i++)
1543 s->s3->tmp.ctype[i]= p[i];
1546 /* get the CA RDNs */
1551 out=fopen("/tmp/vsign.der","w");
1552 fwrite(p,1,llen,out);
1557 if ((llen+ctype_num+2+1) != n)
1559 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1560 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_LENGTH_MISMATCH);
1564 for (nc=0; nc<llen; )
1567 if ((l+nc+2) > llen)
1569 if ((s->options & SSL_OP_NETSCAPE_CA_DN_BUG))
1570 goto cont; /* netscape bugs */
1571 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1572 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_TOO_LONG);
1578 if ((xn=d2i_X509_NAME(NULL,&q,l)) == NULL)
1580 /* If netscape tolerance is on, ignore errors */
1581 if (s->options & SSL_OP_NETSCAPE_CA_DN_BUG)
1585 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1586 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_ASN1_LIB);
1593 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1594 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_LENGTH_MISMATCH);
1597 if (!sk_X509_NAME_push(ca_sk,xn))
1599 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
1613 /* we should setup a certificate to return.... */
1614 s->s3->tmp.cert_req=1;
1615 s->s3->tmp.ctype_num=ctype_num;
1616 if (s->s3->tmp.ca_names != NULL)
1617 sk_X509_NAME_pop_free(s->s3->tmp.ca_names,X509_NAME_free);
1618 s->s3->tmp.ca_names=ca_sk;
1623 if (ca_sk != NULL) sk_X509_NAME_pop_free(ca_sk,X509_NAME_free);
1627 static int ca_dn_cmp(const X509_NAME * const *a, const X509_NAME * const *b)
1629 return(X509_NAME_cmp(*a,*b));
1632 int ssl3_get_server_done(SSL *s)
1637 n=s->method->ssl_get_message(s,
1638 SSL3_ST_CR_SRVR_DONE_A,
1639 SSL3_ST_CR_SRVR_DONE_B,
1640 SSL3_MT_SERVER_DONE,
1641 30, /* should be very small, like 0 :-) */
1644 if (!ok) return((int)n);
1647 /* should contain no data */
1648 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1649 SSLerr(SSL_F_SSL3_GET_SERVER_DONE,SSL_R_LENGTH_MISMATCH);
1657 int ssl3_send_client_key_exchange(SSL *s)
1659 unsigned char *p,*d;
1662 #ifndef OPENSSL_NO_RSA
1664 EVP_PKEY *pkey=NULL;
1666 #ifndef OPENSSL_NO_KRB5
1668 #endif /* OPENSSL_NO_KRB5 */
1669 #ifndef OPENSSL_NO_ECDH
1670 EC_KEY *clnt_ecdh = NULL;
1671 const EC_POINT *srvr_ecpoint = NULL;
1672 EVP_PKEY *srvr_pub_pkey = NULL;
1673 unsigned char *encodedPoint = NULL;
1674 int encoded_pt_len = 0;
1675 BN_CTX * bn_ctx = NULL;
1678 if (s->state == SSL3_ST_CW_KEY_EXCH_A)
1680 d=(unsigned char *)s->init_buf->data;
1683 l=s->s3->tmp.new_cipher->algorithms;
1685 /* Fool emacs indentation */
1687 #ifndef OPENSSL_NO_RSA
1688 else if (l & SSL_kRSA)
1691 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
1693 if (s->session->sess_cert->peer_rsa_tmp != NULL)
1694 rsa=s->session->sess_cert->peer_rsa_tmp;
1697 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1698 if ((pkey == NULL) ||
1699 (pkey->type != EVP_PKEY_RSA) ||
1700 (pkey->pkey.rsa == NULL))
1702 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1706 EVP_PKEY_free(pkey);
1709 tmp_buf[0]=s->client_version>>8;
1710 tmp_buf[1]=s->client_version&0xff;
1711 if (RAND_bytes(&(tmp_buf[2]),sizeof tmp_buf-2) <= 0)
1714 s->session->master_key_length=sizeof tmp_buf;
1717 /* Fix buf for TLS and beyond */
1718 if (s->version > SSL3_VERSION)
1720 n=RSA_public_encrypt(sizeof tmp_buf,
1721 tmp_buf,p,rsa,RSA_PKCS1_PADDING);
1723 if (s->options & SSL_OP_PKCS1_CHECK_1) p[1]++;
1724 if (s->options & SSL_OP_PKCS1_CHECK_2) tmp_buf[0]=0x70;
1728 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_BAD_RSA_ENCRYPT);
1732 /* Fix buf for TLS and beyond */
1733 if (s->version > SSL3_VERSION)
1739 s->session->master_key_length=
1740 s->method->ssl3_enc->generate_master_secret(s,
1741 s->session->master_key,
1742 tmp_buf,sizeof tmp_buf);
1743 OPENSSL_cleanse(tmp_buf,sizeof tmp_buf);
1746 #ifndef OPENSSL_NO_KRB5
1747 else if (l & SSL_kKRB5)
1749 krb5_error_code krb5rc;
1750 KSSL_CTX *kssl_ctx = s->kssl_ctx;
1751 /* krb5_data krb5_ap_req; */
1752 krb5_data *enc_ticket;
1753 krb5_data authenticator, *authp = NULL;
1754 EVP_CIPHER_CTX ciph_ctx;
1755 EVP_CIPHER *enc = NULL;
1756 unsigned char iv[EVP_MAX_IV_LENGTH];
1757 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
1758 unsigned char epms[SSL_MAX_MASTER_KEY_LENGTH
1759 + EVP_MAX_IV_LENGTH];
1760 int padl, outl = sizeof(epms);
1762 EVP_CIPHER_CTX_init(&ciph_ctx);
1765 printf("ssl3_send_client_key_exchange(%lx & %lx)\n",
1767 #endif /* KSSL_DEBUG */
1771 if (KRB5SENDAUTH) authp = &authenticator;
1772 #endif /* KRB5SENDAUTH */
1774 krb5rc = kssl_cget_tkt(kssl_ctx, &enc_ticket, authp,
1776 enc = kssl_map_enc(kssl_ctx->enctype);
1781 printf("kssl_cget_tkt rtn %d\n", krb5rc);
1782 if (krb5rc && kssl_err.text)
1783 printf("kssl_cget_tkt kssl_err=%s\n", kssl_err.text);
1785 #endif /* KSSL_DEBUG */
1789 ssl3_send_alert(s,SSL3_AL_FATAL,
1790 SSL_AD_HANDSHAKE_FAILURE);
1791 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1796 /* 20010406 VRS - Earlier versions used KRB5 AP_REQ
1797 ** in place of RFC 2712 KerberosWrapper, as in:
1799 ** Send ticket (copy to *p, set n = length)
1800 ** n = krb5_ap_req.length;
1801 ** memcpy(p, krb5_ap_req.data, krb5_ap_req.length);
1802 ** if (krb5_ap_req.data)
1803 ** kssl_krb5_free_data_contents(NULL,&krb5_ap_req);
1805 ** Now using real RFC 2712 KerberosWrapper
1806 ** (Thanks to Simon Wilkinson <sxw@sxw.org.uk>)
1807 ** Note: 2712 "opaque" types are here replaced
1808 ** with a 2-byte length followed by the value.
1810 ** KerberosWrapper= xx xx asn1ticket 0 0 xx xx encpms
1811 ** Where "xx xx" = length bytes. Shown here with
1812 ** optional authenticator omitted.
1815 /* KerberosWrapper.Ticket */
1816 s2n(enc_ticket->length,p);
1817 memcpy(p, enc_ticket->data, enc_ticket->length);
1818 p+= enc_ticket->length;
1819 n = enc_ticket->length + 2;
1821 /* KerberosWrapper.Authenticator */
1822 if (authp && authp->length)
1824 s2n(authp->length,p);
1825 memcpy(p, authp->data, authp->length);
1827 n+= authp->length + 2;
1835 s2n(0,p);/* null authenticator length */
1839 if (RAND_bytes(tmp_buf,sizeof tmp_buf) <= 0)
1842 /* 20010420 VRS. Tried it this way; failed.
1843 ** EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,NULL);
1844 ** EVP_CIPHER_CTX_set_key_length(&ciph_ctx,
1845 ** kssl_ctx->length);
1846 ** EVP_EncryptInit_ex(&ciph_ctx,NULL, key,iv);
1849 memset(iv, 0, sizeof iv); /* per RFC 1510 */
1850 EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,
1852 EVP_EncryptUpdate(&ciph_ctx,epms,&outl,tmp_buf,
1854 EVP_EncryptFinal_ex(&ciph_ctx,&(epms[outl]),&padl);
1856 if (outl > sizeof epms)
1858 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
1861 EVP_CIPHER_CTX_cleanup(&ciph_ctx);
1863 /* KerberosWrapper.EncryptedPreMasterSecret */
1865 memcpy(p, epms, outl);
1869 s->session->master_key_length=
1870 s->method->ssl3_enc->generate_master_secret(s,
1871 s->session->master_key,
1872 tmp_buf, sizeof tmp_buf);
1874 OPENSSL_cleanse(tmp_buf, sizeof tmp_buf);
1875 OPENSSL_cleanse(epms, outl);
1878 #ifndef OPENSSL_NO_DH
1879 else if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
1881 DH *dh_srvr,*dh_clnt;
1883 if (s->session->sess_cert->peer_dh_tmp != NULL)
1884 dh_srvr=s->session->sess_cert->peer_dh_tmp;
1887 /* we get them from the cert */
1888 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1889 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_DH_PARAMETERS);
1893 /* generate a new random key */
1894 if ((dh_clnt=DHparams_dup(dh_srvr)) == NULL)
1896 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1899 if (!DH_generate_key(dh_clnt))
1901 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1905 /* use the 'p' output buffer for the DH key, but
1906 * make sure to clear it out afterwards */
1908 n=DH_compute_key(p,dh_srvr->pub_key,dh_clnt);
1912 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1916 /* generate master key from the result */
1917 s->session->master_key_length=
1918 s->method->ssl3_enc->generate_master_secret(s,
1919 s->session->master_key,p,n);
1923 /* send off the data */
1924 n=BN_num_bytes(dh_clnt->pub_key);
1926 BN_bn2bin(dh_clnt->pub_key,p);
1931 /* perhaps clean things up a bit EAY EAY EAY EAY*/
1935 #ifndef OPENSSL_NO_ECDH
1936 else if ((l & SSL_kECDH) || (l & SSL_kECDHE))
1938 const EC_GROUP *srvr_group = NULL;
1940 int ecdh_clnt_cert = 0;
1943 /* Did we send out the client's
1944 * ECDH share for use in premaster
1945 * computation as part of client certificate?
1946 * If so, set ecdh_clnt_cert to 1.
1948 if ((l & SSL_kECDH) && (s->cert != NULL))
1950 /* XXX: For now, we do not support client
1951 * authentication using ECDH certificates.
1952 * To add such support, one needs to add
1953 * code that checks for appropriate
1954 * conditions and sets ecdh_clnt_cert to 1.
1955 * For example, the cert have an ECC
1956 * key on the same curve as the server's
1957 * and the key should be authorized for
1960 * One also needs to add code in ssl3_connect
1961 * to skip sending the certificate verify
1964 * if ((s->cert->key->privatekey != NULL) &&
1965 * (s->cert->key->privatekey->type ==
1966 * EVP_PKEY_EC) && ...)
1967 * ecdh_clnt_cert = 1;
1971 if (s->session->sess_cert->peer_ecdh_tmp != NULL)
1973 tkey = s->session->sess_cert->peer_ecdh_tmp;
1977 /* Get the Server Public Key from Cert */
1978 srvr_pub_pkey = X509_get_pubkey(s->session-> \
1979 sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
1980 if ((srvr_pub_pkey == NULL) ||
1981 (srvr_pub_pkey->type != EVP_PKEY_EC) ||
1982 (srvr_pub_pkey->pkey.ec == NULL))
1984 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1985 ERR_R_INTERNAL_ERROR);
1989 tkey = srvr_pub_pkey->pkey.ec;
1992 srvr_group = EC_KEY_get0_group(tkey);
1993 srvr_ecpoint = EC_KEY_get0_public_key(tkey);
1995 if ((srvr_group == NULL) || (srvr_ecpoint == NULL))
1997 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1998 ERR_R_INTERNAL_ERROR);
2002 if ((clnt_ecdh=EC_KEY_new()) == NULL)
2004 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
2008 if (!EC_KEY_set_group(clnt_ecdh, srvr_group))
2010 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_EC_LIB);
2015 /* Reuse key info from our certificate
2016 * We only need our private key to perform
2017 * the ECDH computation.
2019 const BIGNUM *priv_key;
2020 tkey = s->cert->key->privatekey->pkey.ec;
2021 priv_key = EC_KEY_get0_private_key(tkey);
2022 if (priv_key == NULL)
2024 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
2027 if (!EC_KEY_set_private_key(clnt_ecdh, priv_key))
2029 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_EC_LIB);
2035 /* Generate a new ECDH key pair */
2036 if (!(EC_KEY_generate_key(clnt_ecdh)))
2038 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_ECDH_LIB);
2043 /* use the 'p' output buffer for the ECDH key, but
2044 * make sure to clear it out afterwards
2047 field_size = EC_GROUP_get_degree(srvr_group);
2048 if (field_size <= 0)
2050 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2054 n=ECDH_compute_key(p, (field_size+7)/8, srvr_ecpoint, clnt_ecdh, NULL);
2057 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2062 /* generate master key from the result */
2063 s->session->master_key_length = s->method->ssl3_enc \
2064 -> generate_master_secret(s,
2065 s->session->master_key,
2068 memset(p, 0, n); /* clean up */
2072 /* Send empty client key exch message */
2077 /* First check the size of encoding and
2078 * allocate memory accordingly.
2081 EC_POINT_point2oct(srvr_group,
2082 EC_KEY_get0_public_key(clnt_ecdh),
2083 POINT_CONVERSION_UNCOMPRESSED,
2086 encodedPoint = (unsigned char *)
2087 OPENSSL_malloc(encoded_pt_len *
2088 sizeof(unsigned char));
2089 bn_ctx = BN_CTX_new();
2090 if ((encodedPoint == NULL) ||
2093 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
2097 /* Encode the public key */
2098 n = EC_POINT_point2oct(srvr_group,
2099 EC_KEY_get0_public_key(clnt_ecdh),
2100 POINT_CONVERSION_UNCOMPRESSED,
2101 encodedPoint, encoded_pt_len, bn_ctx);
2103 *p = n; /* length of encoded point */
2104 /* Encoded point will be copied here */
2106 /* copy the point */
2107 memcpy((unsigned char *)p, encodedPoint, n);
2108 /* increment n to account for length field */
2112 /* Free allocated memory */
2113 BN_CTX_free(bn_ctx);
2114 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2115 if (clnt_ecdh != NULL)
2116 EC_KEY_free(clnt_ecdh);
2117 EVP_PKEY_free(srvr_pub_pkey);
2119 #endif /* !OPENSSL_NO_ECDH */
2122 ssl3_send_alert(s, SSL3_AL_FATAL,
2123 SSL_AD_HANDSHAKE_FAILURE);
2124 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2125 ERR_R_INTERNAL_ERROR);
2129 *(d++)=SSL3_MT_CLIENT_KEY_EXCHANGE;
2132 s->state=SSL3_ST_CW_KEY_EXCH_B;
2133 /* number of bytes to write */
2138 /* SSL3_ST_CW_KEY_EXCH_B */
2139 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2141 #ifndef OPENSSL_NO_ECDH
2142 BN_CTX_free(bn_ctx);
2143 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2144 if (clnt_ecdh != NULL)
2145 EC_KEY_free(clnt_ecdh);
2146 EVP_PKEY_free(srvr_pub_pkey);
2151 int ssl3_send_client_verify(SSL *s)
2153 unsigned char *p,*d;
2154 unsigned char data[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];
2156 #ifndef OPENSSL_NO_RSA
2160 #if !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
2164 if (s->state == SSL3_ST_CW_CERT_VRFY_A)
2166 d=(unsigned char *)s->init_buf->data;
2168 pkey=s->cert->key->privatekey;
2170 s->method->ssl3_enc->cert_verify_mac(s,&(s->s3->finish_dgst2),
2171 &(data[MD5_DIGEST_LENGTH]));
2173 #ifndef OPENSSL_NO_RSA
2174 if (pkey->type == EVP_PKEY_RSA)
2176 s->method->ssl3_enc->cert_verify_mac(s,
2177 &(s->s3->finish_dgst1),&(data[0]));
2178 if (RSA_sign(NID_md5_sha1, data,
2179 MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH,
2180 &(p[2]), &u, pkey->pkey.rsa) <= 0 )
2182 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_RSA_LIB);
2190 #ifndef OPENSSL_NO_DSA
2191 if (pkey->type == EVP_PKEY_DSA)
2193 if (!DSA_sign(pkey->save_type,
2194 &(data[MD5_DIGEST_LENGTH]),
2195 SHA_DIGEST_LENGTH,&(p[2]),
2196 (unsigned int *)&j,pkey->pkey.dsa))
2198 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_DSA_LIB);
2206 #ifndef OPENSSL_NO_ECDSA
2207 if (pkey->type == EVP_PKEY_EC)
2209 if (!ECDSA_sign(pkey->save_type,
2210 &(data[MD5_DIGEST_LENGTH]),
2211 SHA_DIGEST_LENGTH,&(p[2]),
2212 (unsigned int *)&j,pkey->pkey.ec))
2214 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,
2224 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_INTERNAL_ERROR);
2227 *(d++)=SSL3_MT_CERTIFICATE_VERIFY;
2230 s->state=SSL3_ST_CW_CERT_VRFY_B;
2231 s->init_num=(int)n+4;
2234 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2239 int ssl3_send_client_certificate(SSL *s)
2242 EVP_PKEY *pkey=NULL;
2246 if (s->state == SSL3_ST_CW_CERT_A)
2248 if ((s->cert == NULL) ||
2249 (s->cert->key->x509 == NULL) ||
2250 (s->cert->key->privatekey == NULL))
2251 s->state=SSL3_ST_CW_CERT_B;
2253 s->state=SSL3_ST_CW_CERT_C;
2256 /* We need to get a client cert */
2257 if (s->state == SSL3_ST_CW_CERT_B)
2259 /* If we get an error, we need to
2260 * ssl->rwstate=SSL_X509_LOOKUP; return(-1);
2261 * We then get retied later */
2263 if (s->ctx->client_cert_cb != NULL)
2264 i=s->ctx->client_cert_cb(s,&(x509),&(pkey));
2267 s->rwstate=SSL_X509_LOOKUP;
2270 s->rwstate=SSL_NOTHING;
2271 if ((i == 1) && (pkey != NULL) && (x509 != NULL))
2273 s->state=SSL3_ST_CW_CERT_B;
2274 if ( !SSL_use_certificate(s,x509) ||
2275 !SSL_use_PrivateKey(s,pkey))
2281 SSLerr(SSL_F_SSL3_SEND_CLIENT_CERTIFICATE,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK);
2284 if (x509 != NULL) X509_free(x509);
2285 if (pkey != NULL) EVP_PKEY_free(pkey);
2288 if (s->version == SSL3_VERSION)
2290 s->s3->tmp.cert_req=0;
2291 ssl3_send_alert(s,SSL3_AL_WARNING,SSL_AD_NO_CERTIFICATE);
2296 s->s3->tmp.cert_req=2;
2300 /* Ok, we have a cert */
2301 s->state=SSL3_ST_CW_CERT_C;
2304 if (s->state == SSL3_ST_CW_CERT_C)
2306 s->state=SSL3_ST_CW_CERT_D;
2307 l=ssl3_output_cert_chain(s,
2308 (s->s3->tmp.cert_req == 2)?NULL:s->cert->key->x509);
2312 /* SSL3_ST_CW_CERT_D */
2313 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2316 #define has_bits(i,m) (((i)&(m)) == (m))
2318 int ssl3_check_cert_and_algorithm(SSL *s)
2322 EVP_PKEY *pkey=NULL;
2324 #ifndef OPENSSL_NO_RSA
2327 #ifndef OPENSSL_NO_DH
2331 sc=s->session->sess_cert;
2335 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,ERR_R_INTERNAL_ERROR);
2339 algs=s->s3->tmp.new_cipher->algorithms;
2341 /* we don't have a certificate */
2342 if (algs & (SSL_aDH|SSL_aNULL|SSL_aKRB5))
2345 #ifndef OPENSSL_NO_RSA
2346 rsa=s->session->sess_cert->peer_rsa_tmp;
2348 #ifndef OPENSSL_NO_DH
2349 dh=s->session->sess_cert->peer_dh_tmp;
2352 /* This is the passed certificate */
2354 idx=sc->peer_cert_type;
2355 #ifndef OPENSSL_NO_ECDH
2356 if (idx == SSL_PKEY_ECC)
2358 if (check_srvr_ecc_cert_and_alg(sc->peer_pkeys[idx].x509,
2359 s->s3->tmp.new_cipher) == 0)
2360 { /* check failed */
2361 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_BAD_ECC_CERT);
2370 pkey=X509_get_pubkey(sc->peer_pkeys[idx].x509);
2371 i=X509_certificate_type(sc->peer_pkeys[idx].x509,pkey);
2372 EVP_PKEY_free(pkey);
2375 /* Check that we have a certificate if we require one */
2376 if ((algs & SSL_aRSA) && !has_bits(i,EVP_PK_RSA|EVP_PKT_SIGN))
2378 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_SIGNING_CERT);
2381 #ifndef OPENSSL_NO_DSA
2382 else if ((algs & SSL_aDSS) && !has_bits(i,EVP_PK_DSA|EVP_PKT_SIGN))
2384 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DSA_SIGNING_CERT);
2388 #ifndef OPENSSL_NO_RSA
2389 if ((algs & SSL_kRSA) &&
2390 !(has_bits(i,EVP_PK_RSA|EVP_PKT_ENC) || (rsa != NULL)))
2392 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_ENCRYPTING_CERT);
2396 #ifndef OPENSSL_NO_DH
2397 if ((algs & SSL_kEDH) &&
2398 !(has_bits(i,EVP_PK_DH|EVP_PKT_EXCH) || (dh != NULL)))
2400 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_KEY);
2403 else if ((algs & SSL_kDHr) && !has_bits(i,EVP_PK_DH|EVP_PKS_RSA))
2405 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_RSA_CERT);
2408 #ifndef OPENSSL_NO_DSA
2409 else if ((algs & SSL_kDHd) && !has_bits(i,EVP_PK_DH|EVP_PKS_DSA))
2411 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_DSA_CERT);
2417 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) && !has_bits(i,EVP_PKT_EXP))
2419 #ifndef OPENSSL_NO_RSA
2420 if (algs & SSL_kRSA)
2423 || RSA_size(rsa)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2425 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_RSA_KEY);
2431 #ifndef OPENSSL_NO_DH
2432 if (algs & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
2435 || DH_size(dh)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2437 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_DH_KEY);
2444 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);
2450 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
2456 #ifndef OPENSSL_NO_ECDH
2457 /* This is the complement of nid2curve_id in s3_srvr.c. */
2458 static int curve_id2nid(int curve_id)
2460 /* ECC curves from draft-ietf-tls-ecc-01.txt (Mar 15, 2001)
2461 * (no changes in draft-ietf-tls-ecc-03.txt [June 2003]) */
2462 static int nid_list[26] =
2465 NID_sect163k1, /* sect163k1 (1) */
2466 NID_sect163r1, /* sect163r1 (2) */
2467 NID_sect163r2, /* sect163r2 (3) */
2468 NID_sect193r1, /* sect193r1 (4) */
2469 NID_sect193r2, /* sect193r2 (5) */
2470 NID_sect233k1, /* sect233k1 (6) */
2471 NID_sect233r1, /* sect233r1 (7) */
2472 NID_sect239k1, /* sect239k1 (8) */
2473 NID_sect283k1, /* sect283k1 (9) */
2474 NID_sect283r1, /* sect283r1 (10) */
2475 NID_sect409k1, /* sect409k1 (11) */
2476 NID_sect409r1, /* sect409r1 (12) */
2477 NID_sect571k1, /* sect571k1 (13) */
2478 NID_sect571r1, /* sect571r1 (14) */
2479 NID_secp160k1, /* secp160k1 (15) */
2480 NID_secp160r1, /* secp160r1 (16) */
2481 NID_secp160r2, /* secp160r2 (17) */
2482 NID_secp192k1, /* secp192k1 (18) */
2483 NID_X9_62_prime192v1, /* secp192r1 (19) */
2484 NID_secp224k1, /* secp224k1 (20) */
2485 NID_secp224r1, /* secp224r1 (21) */
2486 NID_secp256k1, /* secp256k1 (22) */
2487 NID_X9_62_prime256v1, /* secp256r1 (23) */
2488 NID_secp384r1, /* secp384r1 (24) */
2489 NID_secp521r1 /* secp521r1 (25) */
2492 if ((curve_id < 1) || (curve_id > 25)) return 0;
2494 return nid_list[curve_id];