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 if (ssl_check_tlsext(s,&al) <= 0)
263 ssl3_send_alert(s,SSL3_AL_FATAL,al); /* XXX does this *have* to be fatal? */
264 SSLerr(SSL_F_SSL3_CONNECT,SSL_R_SERVERHELLO_TLS_EXT);
271 s->state=SSL3_ST_CR_FINISHED_A;
273 s->state=SSL3_ST_CR_CERT_A;
277 case SSL3_ST_CR_CERT_A:
278 case SSL3_ST_CR_CERT_B:
279 /* Check if it is anon DH/ECDH */
280 if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
282 ret=ssl3_get_server_certificate(s);
283 if (ret <= 0) goto end;
287 s->state=SSL3_ST_CR_KEY_EXCH_A;
291 case SSL3_ST_CR_KEY_EXCH_A:
292 case SSL3_ST_CR_KEY_EXCH_B:
293 ret=ssl3_get_key_exchange(s);
294 if (ret <= 0) goto end;
295 s->state=SSL3_ST_CR_CERT_REQ_A;
298 /* at this point we check that we have the
299 * required stuff from the server */
300 if (!ssl3_check_cert_and_algorithm(s))
307 case SSL3_ST_CR_CERT_REQ_A:
308 case SSL3_ST_CR_CERT_REQ_B:
309 ret=ssl3_get_certificate_request(s);
310 if (ret <= 0) goto end;
311 s->state=SSL3_ST_CR_SRVR_DONE_A;
315 case SSL3_ST_CR_SRVR_DONE_A:
316 case SSL3_ST_CR_SRVR_DONE_B:
317 ret=ssl3_get_server_done(s);
318 if (ret <= 0) goto end;
319 if (s->s3->tmp.cert_req)
320 s->state=SSL3_ST_CW_CERT_A;
322 s->state=SSL3_ST_CW_KEY_EXCH_A;
327 case SSL3_ST_CW_CERT_A:
328 case SSL3_ST_CW_CERT_B:
329 case SSL3_ST_CW_CERT_C:
330 case SSL3_ST_CW_CERT_D:
331 ret=ssl3_send_client_certificate(s);
332 if (ret <= 0) goto end;
333 s->state=SSL3_ST_CW_KEY_EXCH_A;
337 case SSL3_ST_CW_KEY_EXCH_A:
338 case SSL3_ST_CW_KEY_EXCH_B:
339 ret=ssl3_send_client_key_exchange(s);
340 if (ret <= 0) goto end;
341 l=s->s3->tmp.new_cipher->algorithms;
342 /* EAY EAY EAY need to check for DH fix cert
344 /* For TLS, cert_req is set to 2, so a cert chain
345 * of nothing is sent, but no verify packet is sent */
346 /* XXX: For now, we do not support client
347 * authentication in ECDH cipher suites with
348 * ECDH (rather than ECDSA) certificates.
349 * We need to skip the certificate verify
350 * message when client's ECDH public key is sent
351 * inside the client certificate.
353 if (s->s3->tmp.cert_req == 1)
355 s->state=SSL3_ST_CW_CERT_VRFY_A;
359 s->state=SSL3_ST_CW_CHANGE_A;
360 s->s3->change_cipher_spec=0;
366 case SSL3_ST_CW_CERT_VRFY_A:
367 case SSL3_ST_CW_CERT_VRFY_B:
368 ret=ssl3_send_client_verify(s);
369 if (ret <= 0) goto end;
370 s->state=SSL3_ST_CW_CHANGE_A;
372 s->s3->change_cipher_spec=0;
375 case SSL3_ST_CW_CHANGE_A:
376 case SSL3_ST_CW_CHANGE_B:
377 ret=ssl3_send_change_cipher_spec(s,
378 SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B);
379 if (ret <= 0) goto end;
380 s->state=SSL3_ST_CW_FINISHED_A;
383 s->session->cipher=s->s3->tmp.new_cipher;
384 #ifdef OPENSSL_NO_COMP
385 s->session->compress_meth=0;
387 if (s->s3->tmp.new_compression == NULL)
388 s->session->compress_meth=0;
390 s->session->compress_meth=
391 s->s3->tmp.new_compression->id;
393 if (!s->method->ssl3_enc->setup_key_block(s))
399 if (!s->method->ssl3_enc->change_cipher_state(s,
400 SSL3_CHANGE_CIPHER_CLIENT_WRITE))
408 case SSL3_ST_CW_FINISHED_A:
409 case SSL3_ST_CW_FINISHED_B:
410 ret=ssl3_send_finished(s,
411 SSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B,
412 s->method->ssl3_enc->client_finished_label,
413 s->method->ssl3_enc->client_finished_label_len);
414 if (ret <= 0) goto end;
415 s->state=SSL3_ST_CW_FLUSH;
418 s->s3->flags&= ~SSL3_FLAGS_POP_BUFFER;
421 s->s3->tmp.next_state=SSL_ST_OK;
422 if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED)
425 s->s3->flags|=SSL3_FLAGS_POP_BUFFER;
426 s->s3->delay_buf_pop_ret=0;
431 s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A;
436 case SSL3_ST_CR_FINISHED_A:
437 case SSL3_ST_CR_FINISHED_B:
439 ret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A,
440 SSL3_ST_CR_FINISHED_B);
441 if (ret <= 0) goto end;
444 s->state=SSL3_ST_CW_CHANGE_A;
450 case SSL3_ST_CW_FLUSH:
451 /* number of bytes to be flushed */
452 num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);
455 s->rwstate=SSL_WRITING;
456 num1=BIO_flush(s->wbio);
457 if (num1 <= 0) { ret= -1; goto end; }
458 s->rwstate=SSL_NOTHING;
461 s->state=s->s3->tmp.next_state;
465 /* clean a few things up */
466 ssl3_cleanup_key_block(s);
468 if (s->init_buf != NULL)
470 BUF_MEM_free(s->init_buf);
474 /* If we are not 'joining' the last two packets,
475 * remove the buffering now */
476 if (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER))
477 ssl_free_wbio_buffer(s);
478 /* else do it later in ssl3_write */
483 ssl_update_cache(s,SSL_SESS_CACHE_CLIENT);
484 if (s->hit) s->ctx->stats.sess_hit++;
488 s->handshake_func=ssl3_connect;
489 s->ctx->stats.sess_connect_good++;
491 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);
497 SSLerr(SSL_F_SSL3_CONNECT,SSL_R_UNKNOWN_STATE);
503 /* did we do anything */
504 if (!s->s3->tmp.reuse_message && !skip)
508 if ((ret=BIO_flush(s->wbio)) <= 0)
512 if ((cb != NULL) && (s->state != state))
516 cb(s,SSL_CB_CONNECT_LOOP,1);
527 cb(s,SSL_CB_CONNECT_EXIT,ret);
532 int ssl3_client_hello(SSL *s)
537 unsigned long Time,l;
538 #ifndef OPENSSL_NO_COMP
543 buf=(unsigned char *)s->init_buf->data;
544 if (s->state == SSL3_ST_CW_CLNT_HELLO_A)
546 if ((s->session == NULL) ||
547 (s->session->ssl_version != s->version) ||
548 (s->session->not_resumable))
550 if (!ssl_get_new_session(s,0))
553 /* else use the pre-loaded session */
555 p=s->s3->client_random;
556 Time=(unsigned long)time(NULL); /* Time */
558 if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0)
561 /* Do the message type and length last */
564 *(p++)=s->version>>8;
565 *(p++)=s->version&0xff;
566 s->client_version=s->version;
569 memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
576 i=s->session->session_id_length;
580 if (i > (int)sizeof(s->session->session_id))
582 SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
585 memcpy(p,s->session->session_id,i);
589 /* Ciphers supported */
590 i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]),0);
593 SSLerr(SSL_F_SSL3_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
600 #ifdef OPENSSL_NO_COMP
604 if ((s->options & SSL_OP_NO_COMPRESSION)
605 || !s->ctx->comp_methods)
608 j=sk_SSL_COMP_num(s->ctx->comp_methods);
612 comp=sk_SSL_COMP_value(s->ctx->comp_methods,i);
616 *(p++)=0; /* Add the NULL method */
617 #ifndef OPENSSL_NO_TLSEXT
618 if ((p = ssl_add_clienthello_tlsext(s, p, buf+SSL3_RT_MAX_PLAIN_LENGTH)) == NULL)
620 SSLerr(SSL_F_SSL3_CLIENT_HELLO,ERR_R_INTERNAL_ERROR);
627 *(d++)=SSL3_MT_CLIENT_HELLO;
630 s->state=SSL3_ST_CW_CLNT_HELLO_B;
631 /* number of bytes to write */
636 /* SSL3_ST_CW_CLNT_HELLO_B */
637 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
642 int ssl3_get_server_hello(SSL *s)
644 STACK_OF(SSL_CIPHER) *sk;
650 #ifndef OPENSSL_NO_COMP
654 n=s->method->ssl_get_message(s,
655 SSL3_ST_CR_SRVR_HELLO_A,
656 SSL3_ST_CR_SRVR_HELLO_B,
661 if (!ok) return((int)n);
663 if ( SSL_version(s) == DTLS1_VERSION)
665 if ( s->s3->tmp.message_type == DTLS1_MT_HELLO_VERIFY_REQUEST)
667 if ( s->d1->send_cookie == 0)
669 s->s3->tmp.reuse_message = 1;
672 else /* already sent a cookie */
674 al=SSL_AD_UNEXPECTED_MESSAGE;
675 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);
681 if ( s->s3->tmp.message_type != SSL3_MT_SERVER_HELLO)
683 al=SSL_AD_UNEXPECTED_MESSAGE;
684 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);
688 d=p=(unsigned char *)s->init_msg;
690 if ((p[0] != (s->version>>8)) || (p[1] != (s->version&0xff)))
692 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_SSL_VERSION);
693 s->version=(s->version&0xff00)|p[1];
694 al=SSL_AD_PROTOCOL_VERSION;
699 /* load the server hello data */
700 /* load the server random */
701 memcpy(s->s3->server_random,p,SSL3_RANDOM_SIZE);
704 /* get the session-id */
707 if ((j > sizeof s->session->session_id) || (j > SSL3_SESSION_ID_SIZE))
709 al=SSL_AD_ILLEGAL_PARAMETER;
710 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SSL3_SESSION_ID_TOO_LONG);
714 if (j != 0 && j == s->session->session_id_length
715 && memcmp(p,s->session->session_id,j) == 0)
717 if(s->sid_ctx_length != s->session->sid_ctx_length
718 || memcmp(s->session->sid_ctx,s->sid_ctx,s->sid_ctx_length))
720 /* actually a client application bug */
721 al=SSL_AD_ILLEGAL_PARAMETER;
722 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);
727 else /* a miss or crap from the other end */
729 /* If we were trying for session-id reuse, make a new
730 * SSL_SESSION so we don't stuff up other people */
732 if (s->session->session_id_length > 0)
734 if (!ssl_get_new_session(s,0))
736 al=SSL_AD_INTERNAL_ERROR;
740 s->session->session_id_length=j;
741 memcpy(s->session->session_id,p,j); /* j could be 0 */
744 c=ssl_get_cipher_by_char(s,p);
748 al=SSL_AD_ILLEGAL_PARAMETER;
749 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNKNOWN_CIPHER_RETURNED);
752 p+=ssl_put_cipher_by_char(s,NULL,NULL);
754 sk=ssl_get_ciphers_by_id(s);
755 i=sk_SSL_CIPHER_find(sk,c);
758 /* we did not say we would use this cipher */
759 al=SSL_AD_ILLEGAL_PARAMETER;
760 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_CIPHER_RETURNED);
764 /* Depending on the session caching (internal/external), the cipher
765 and/or cipher_id values may not be set. Make sure that
766 cipher_id is set and use it for comparison. */
767 if (s->session->cipher)
768 s->session->cipher_id = s->session->cipher->id;
769 if (s->hit && (s->session->cipher_id != c->id))
772 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG))
774 al=SSL_AD_ILLEGAL_PARAMETER;
775 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED);
779 s->s3->tmp.new_cipher=c;
781 /* lets get the compression algorithm */
783 #ifdef OPENSSL_NO_COMP
786 al=SSL_AD_ILLEGAL_PARAMETER;
787 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
792 if ((j == 0) || (s->options & SSL_OP_NO_COMPRESSION))
795 comp=ssl3_comp_find(s->ctx->comp_methods,j);
797 if ((j != 0) && (comp == NULL))
799 al=SSL_AD_ILLEGAL_PARAMETER;
800 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
805 s->s3->tmp.new_compression=comp;
808 #ifndef OPENSSL_NO_TLSEXT
810 if (s->version > SSL3_VERSION)
812 if (!ssl_parse_serverhello_tlsext(s,&p,d,n, &al))
814 /* 'al' set by ssl_parse_serverhello_tlsext */
815 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_PARSE_TLS_EXT);
823 /* wrong packet length */
824 al=SSL_AD_DECODE_ERROR;
825 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_PACKET_LENGTH);
831 ssl3_send_alert(s,SSL3_AL_FATAL,al);
836 int ssl3_get_server_certificate(SSL *s)
839 unsigned long n,nc,llen,l;
841 const unsigned char *q,*p;
843 STACK_OF(X509) *sk=NULL;
846 int need_cert = 1; /* VRS: 0=> will allow null cert if auth == KRB5 */
848 n=s->method->ssl_get_message(s,
855 if (!ok) return((int)n);
857 if (s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE)
859 s->s3->tmp.reuse_message=1;
863 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE)
865 al=SSL_AD_UNEXPECTED_MESSAGE;
866 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_BAD_MESSAGE_TYPE);
869 p=d=(unsigned char *)s->init_msg;
871 if ((sk=sk_X509_new_null()) == NULL)
873 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
880 al=SSL_AD_DECODE_ERROR;
881 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_LENGTH_MISMATCH);
884 for (nc=0; nc<llen; )
889 al=SSL_AD_DECODE_ERROR;
890 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
895 x=d2i_X509(NULL,&q,l);
898 al=SSL_AD_BAD_CERTIFICATE;
899 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_ASN1_LIB);
904 al=SSL_AD_DECODE_ERROR;
905 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
908 if (!sk_X509_push(sk,x))
910 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
918 i=ssl_verify_cert_chain(s,sk);
919 if ((s->verify_mode != SSL_VERIFY_NONE) && (!i)
920 #ifndef OPENSSL_NO_KRB5
921 && (s->s3->tmp.new_cipher->algorithms & (SSL_MKEY_MASK|SSL_AUTH_MASK))
922 != (SSL_aKRB5|SSL_kKRB5)
923 #endif /* OPENSSL_NO_KRB5 */
926 al=ssl_verify_alarm_type(s->verify_result);
927 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED);
930 ERR_clear_error(); /* but we keep s->verify_result */
932 sc=ssl_sess_cert_new();
933 if (sc == NULL) goto err;
935 if (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert);
936 s->session->sess_cert=sc;
939 /* Inconsistency alert: cert_chain does include the peer's
940 * certificate, which we don't include in s3_srvr.c */
941 x=sk_X509_value(sk,0);
943 /* VRS 19990621: possible memory leak; sk=null ==> !sk_pop_free() @end*/
945 pkey=X509_get_pubkey(x);
947 /* VRS: allow null cert if auth == KRB5 */
948 need_cert = ((s->s3->tmp.new_cipher->algorithms
949 & (SSL_MKEY_MASK|SSL_AUTH_MASK))
950 == (SSL_aKRB5|SSL_kKRB5))? 0: 1;
953 printf("pkey,x = %p, %p\n", pkey,x);
954 printf("ssl_cert_type(x,pkey) = %d\n", ssl_cert_type(x,pkey));
955 printf("cipher, alg, nc = %s, %lx, %d\n", s->s3->tmp.new_cipher->name,
956 s->s3->tmp.new_cipher->algorithms, need_cert);
957 #endif /* KSSL_DEBUG */
959 if (need_cert && ((pkey == NULL) || EVP_PKEY_missing_parameters(pkey)))
963 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
964 SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS);
968 i=ssl_cert_type(x,pkey);
969 if (need_cert && i < 0)
973 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
974 SSL_R_UNKNOWN_CERTIFICATE_TYPE);
980 sc->peer_cert_type=i;
981 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
982 /* Why would the following ever happen?
983 * We just created sc a couple of lines ago. */
984 if (sc->peer_pkeys[i].x509 != NULL)
985 X509_free(sc->peer_pkeys[i].x509);
986 sc->peer_pkeys[i].x509=x;
987 sc->peer_key= &(sc->peer_pkeys[i]);
989 if (s->session->peer != NULL)
990 X509_free(s->session->peer);
991 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
996 sc->peer_cert_type=i;
999 if (s->session->peer != NULL)
1000 X509_free(s->session->peer);
1001 s->session->peer=NULL;
1003 s->session->verify_result = s->verify_result;
1011 ssl3_send_alert(s,SSL3_AL_FATAL,al);
1014 EVP_PKEY_free(pkey);
1016 sk_X509_pop_free(sk,X509_free);
1020 int ssl3_get_key_exchange(SSL *s)
1022 #ifndef OPENSSL_NO_RSA
1023 unsigned char *q,md_buf[EVP_MAX_MD_SIZE*2];
1026 unsigned char *param,*p;
1027 int al,i,j,param_len,ok;
1029 EVP_PKEY *pkey=NULL;
1030 #ifndef OPENSSL_NO_RSA
1033 #ifndef OPENSSL_NO_DH
1036 #ifndef OPENSSL_NO_ECDH
1037 EC_KEY *ecdh = NULL;
1038 BN_CTX *bn_ctx = NULL;
1039 EC_POINT *srvr_ecpoint = NULL;
1041 int encoded_pt_len = 0;
1044 /* use same message size as in ssl3_get_certificate_request()
1045 * as ServerKeyExchange message may be skipped */
1046 n=s->method->ssl_get_message(s,
1047 SSL3_ST_CR_KEY_EXCH_A,
1048 SSL3_ST_CR_KEY_EXCH_B,
1053 if (!ok) return((int)n);
1055 if (s->s3->tmp.message_type != SSL3_MT_SERVER_KEY_EXCHANGE)
1057 s->s3->tmp.reuse_message=1;
1061 param=p=(unsigned char *)s->init_msg;
1063 if (s->session->sess_cert != NULL)
1065 #ifndef OPENSSL_NO_RSA
1066 if (s->session->sess_cert->peer_rsa_tmp != NULL)
1068 RSA_free(s->session->sess_cert->peer_rsa_tmp);
1069 s->session->sess_cert->peer_rsa_tmp=NULL;
1072 #ifndef OPENSSL_NO_DH
1073 if (s->session->sess_cert->peer_dh_tmp)
1075 DH_free(s->session->sess_cert->peer_dh_tmp);
1076 s->session->sess_cert->peer_dh_tmp=NULL;
1079 #ifndef OPENSSL_NO_ECDH
1080 if (s->session->sess_cert->peer_ecdh_tmp)
1082 EC_KEY_free(s->session->sess_cert->peer_ecdh_tmp);
1083 s->session->sess_cert->peer_ecdh_tmp=NULL;
1089 s->session->sess_cert=ssl_sess_cert_new();
1093 alg=s->s3->tmp.new_cipher->algorithms;
1094 EVP_MD_CTX_init(&md_ctx);
1096 #ifndef OPENSSL_NO_RSA
1099 if ((rsa=RSA_new()) == NULL)
1101 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1108 al=SSL_AD_DECODE_ERROR;
1109 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_MODULUS_LENGTH);
1112 if (!(rsa->n=BN_bin2bn(p,i,rsa->n)))
1114 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1123 al=SSL_AD_DECODE_ERROR;
1124 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_E_LENGTH);
1127 if (!(rsa->e=BN_bin2bn(p,i,rsa->e)))
1129 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1135 /* this should be because we are using an export cipher */
1137 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1140 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1143 s->session->sess_cert->peer_rsa_tmp=rsa;
1146 #else /* OPENSSL_NO_RSA */
1150 #ifndef OPENSSL_NO_DH
1151 else if (alg & SSL_kEDH)
1153 if ((dh=DH_new()) == NULL)
1155 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_DH_LIB);
1162 al=SSL_AD_DECODE_ERROR;
1163 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_P_LENGTH);
1166 if (!(dh->p=BN_bin2bn(p,i,NULL)))
1168 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1177 al=SSL_AD_DECODE_ERROR;
1178 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_G_LENGTH);
1181 if (!(dh->g=BN_bin2bn(p,i,NULL)))
1183 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1192 al=SSL_AD_DECODE_ERROR;
1193 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_PUB_KEY_LENGTH);
1196 if (!(dh->pub_key=BN_bin2bn(p,i,NULL)))
1198 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1204 #ifndef OPENSSL_NO_RSA
1206 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1211 #ifndef OPENSSL_NO_DSA
1212 else if (alg & SSL_aDSS)
1213 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].x509);
1215 /* else anonymous DH, so no certificate or pkey. */
1217 s->session->sess_cert->peer_dh_tmp=dh;
1220 else if ((alg & SSL_kDHr) || (alg & SSL_kDHd))
1222 al=SSL_AD_ILLEGAL_PARAMETER;
1223 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
1226 #endif /* !OPENSSL_NO_DH */
1228 #ifndef OPENSSL_NO_ECDH
1229 else if (alg & SSL_kECDHE)
1232 const EC_GROUP *group;
1234 if ((ecdh=EC_KEY_new()) == NULL)
1236 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1240 /* Extract elliptic curve parameters and the
1241 * server's ephemeral ECDH public key.
1242 * Keep accumulating lengths of various components in
1243 * param_len and make sure it never exceeds n.
1246 /* XXX: For now we only support named (not generic) curves
1247 * and the ECParameters in this case is just three bytes.
1250 if ((param_len > n) ||
1251 (*p != NAMED_CURVE_TYPE) ||
1252 ((curve_nid = curve_id2nid(*(p + 2))) == 0))
1254 al=SSL_AD_INTERNAL_ERROR;
1255 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS);
1259 ngroup = EC_GROUP_new_by_curve_name(curve_nid);
1262 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
1265 if (EC_KEY_set_group(ecdh, ngroup) == 0)
1267 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
1270 EC_GROUP_free(ngroup);
1272 group = EC_KEY_get0_group(ecdh);
1274 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
1275 (EC_GROUP_get_degree(group) > 163))
1277 al=SSL_AD_EXPORT_RESTRICTION;
1278 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
1284 /* Next, get the encoded ECPoint */
1285 if (((srvr_ecpoint = EC_POINT_new(group)) == NULL) ||
1286 ((bn_ctx = BN_CTX_new()) == NULL))
1288 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1292 encoded_pt_len = *p; /* length of encoded point */
1294 param_len += (1 + encoded_pt_len);
1295 if ((param_len > n) ||
1296 (EC_POINT_oct2point(group, srvr_ecpoint,
1297 p, encoded_pt_len, bn_ctx) == 0))
1299 al=SSL_AD_DECODE_ERROR;
1300 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_ECPOINT);
1307 /* The ECC/TLS specification does not mention
1308 * the use of DSA to sign ECParameters in the server
1309 * key exchange message. We do support RSA and ECDSA.
1312 #ifndef OPENSSL_NO_RSA
1313 else if (alg & SSL_aRSA)
1314 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1316 #ifndef OPENSSL_NO_ECDSA
1317 else if (alg & SSL_aECDSA)
1318 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
1320 /* else anonymous ECDH, so no certificate or pkey. */
1321 EC_KEY_set_public_key(ecdh, srvr_ecpoint);
1322 s->session->sess_cert->peer_ecdh_tmp=ecdh;
1324 BN_CTX_free(bn_ctx);
1325 EC_POINT_free(srvr_ecpoint);
1326 srvr_ecpoint = NULL;
1328 else if (alg & SSL_kECDH)
1330 al=SSL_AD_UNEXPECTED_MESSAGE;
1331 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNEXPECTED_MESSAGE);
1334 #endif /* !OPENSSL_NO_ECDH */
1337 al=SSL_AD_HANDSHAKE_FAILURE;
1338 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
1343 /* p points to the next byte, there are 'n' bytes left */
1345 /* if it was signed, check the signature */
1350 j=EVP_PKEY_size(pkey);
1352 if ((i != n) || (n > j) || (n <= 0))
1354 /* wrong packet length */
1355 al=SSL_AD_DECODE_ERROR;
1356 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_WRONG_SIGNATURE_LENGTH);
1360 #ifndef OPENSSL_NO_RSA
1361 if (pkey->type == EVP_PKEY_RSA)
1367 for (num=2; num > 0; num--)
1369 EVP_DigestInit_ex(&md_ctx,(num == 2)
1370 ?s->ctx->md5:s->ctx->sha1, NULL);
1371 EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1372 EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1373 EVP_DigestUpdate(&md_ctx,param,param_len);
1374 EVP_DigestFinal_ex(&md_ctx,q,(unsigned int *)&i);
1378 i=RSA_verify(NID_md5_sha1, md_buf, j, p, n,
1382 al=SSL_AD_DECRYPT_ERROR;
1383 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_DECRYPT);
1389 al=SSL_AD_DECRYPT_ERROR;
1390 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1396 #ifndef OPENSSL_NO_DSA
1397 if (pkey->type == EVP_PKEY_DSA)
1400 EVP_VerifyInit_ex(&md_ctx,EVP_dss1(), NULL);
1401 EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1402 EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1403 EVP_VerifyUpdate(&md_ctx,param,param_len);
1404 if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey))
1407 al=SSL_AD_DECRYPT_ERROR;
1408 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1414 #ifndef OPENSSL_NO_ECDSA
1415 if (pkey->type == EVP_PKEY_EC)
1417 /* let's do ECDSA */
1418 EVP_VerifyInit_ex(&md_ctx,EVP_ecdsa(), NULL);
1419 EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1420 EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1421 EVP_VerifyUpdate(&md_ctx,param,param_len);
1422 if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey))
1425 al=SSL_AD_DECRYPT_ERROR;
1426 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1433 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1439 /* still data left over */
1440 if (!(alg & SSL_aNULL))
1442 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1447 al=SSL_AD_DECODE_ERROR;
1448 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_EXTRA_DATA_IN_MESSAGE);
1452 EVP_PKEY_free(pkey);
1453 EVP_MD_CTX_cleanup(&md_ctx);
1456 ssl3_send_alert(s,SSL3_AL_FATAL,al);
1458 EVP_PKEY_free(pkey);
1459 #ifndef OPENSSL_NO_RSA
1463 #ifndef OPENSSL_NO_DH
1467 #ifndef OPENSSL_NO_ECDH
1468 BN_CTX_free(bn_ctx);
1469 EC_POINT_free(srvr_ecpoint);
1473 EVP_MD_CTX_cleanup(&md_ctx);
1477 int ssl3_get_certificate_request(SSL *s)
1480 unsigned long n,nc,l;
1481 unsigned int llen,ctype_num,i;
1483 const unsigned char *p,*q;
1485 STACK_OF(X509_NAME) *ca_sk=NULL;
1487 n=s->method->ssl_get_message(s,
1488 SSL3_ST_CR_CERT_REQ_A,
1489 SSL3_ST_CR_CERT_REQ_B,
1494 if (!ok) return((int)n);
1496 s->s3->tmp.cert_req=0;
1498 if (s->s3->tmp.message_type == SSL3_MT_SERVER_DONE)
1500 s->s3->tmp.reuse_message=1;
1504 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE_REQUEST)
1506 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
1507 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_WRONG_MESSAGE_TYPE);
1511 /* TLS does not like anon-DH with client cert */
1512 if (s->version > SSL3_VERSION)
1514 l=s->s3->tmp.new_cipher->algorithms;
1517 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
1518 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER);
1523 p=d=(unsigned char *)s->init_msg;
1525 if ((ca_sk=sk_X509_NAME_new(ca_dn_cmp)) == NULL)
1527 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
1531 /* get the certificate types */
1533 if (ctype_num > SSL3_CT_NUMBER)
1534 ctype_num=SSL3_CT_NUMBER;
1535 for (i=0; i<ctype_num; i++)
1536 s->s3->tmp.ctype[i]= p[i];
1539 /* get the CA RDNs */
1544 out=fopen("/tmp/vsign.der","w");
1545 fwrite(p,1,llen,out);
1550 if ((llen+ctype_num+2+1) != n)
1552 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1553 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_LENGTH_MISMATCH);
1557 for (nc=0; nc<llen; )
1560 if ((l+nc+2) > llen)
1562 if ((s->options & SSL_OP_NETSCAPE_CA_DN_BUG))
1563 goto cont; /* netscape bugs */
1564 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1565 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_TOO_LONG);
1571 if ((xn=d2i_X509_NAME(NULL,&q,l)) == NULL)
1573 /* If netscape tolerance is on, ignore errors */
1574 if (s->options & SSL_OP_NETSCAPE_CA_DN_BUG)
1578 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1579 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_ASN1_LIB);
1586 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1587 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_LENGTH_MISMATCH);
1590 if (!sk_X509_NAME_push(ca_sk,xn))
1592 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
1606 /* we should setup a certificate to return.... */
1607 s->s3->tmp.cert_req=1;
1608 s->s3->tmp.ctype_num=ctype_num;
1609 if (s->s3->tmp.ca_names != NULL)
1610 sk_X509_NAME_pop_free(s->s3->tmp.ca_names,X509_NAME_free);
1611 s->s3->tmp.ca_names=ca_sk;
1616 if (ca_sk != NULL) sk_X509_NAME_pop_free(ca_sk,X509_NAME_free);
1620 static int ca_dn_cmp(const X509_NAME * const *a, const X509_NAME * const *b)
1622 return(X509_NAME_cmp(*a,*b));
1625 int ssl3_get_server_done(SSL *s)
1630 n=s->method->ssl_get_message(s,
1631 SSL3_ST_CR_SRVR_DONE_A,
1632 SSL3_ST_CR_SRVR_DONE_B,
1633 SSL3_MT_SERVER_DONE,
1634 30, /* should be very small, like 0 :-) */
1637 if (!ok) return((int)n);
1640 /* should contain no data */
1641 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1642 SSLerr(SSL_F_SSL3_GET_SERVER_DONE,SSL_R_LENGTH_MISMATCH);
1650 int ssl3_send_client_key_exchange(SSL *s)
1652 unsigned char *p,*d;
1655 #ifndef OPENSSL_NO_RSA
1657 EVP_PKEY *pkey=NULL;
1659 #ifndef OPENSSL_NO_KRB5
1661 #endif /* OPENSSL_NO_KRB5 */
1662 #ifndef OPENSSL_NO_ECDH
1663 EC_KEY *clnt_ecdh = NULL;
1664 const EC_POINT *srvr_ecpoint = NULL;
1665 EVP_PKEY *srvr_pub_pkey = NULL;
1666 unsigned char *encodedPoint = NULL;
1667 int encoded_pt_len = 0;
1668 BN_CTX * bn_ctx = NULL;
1671 if (s->state == SSL3_ST_CW_KEY_EXCH_A)
1673 d=(unsigned char *)s->init_buf->data;
1676 l=s->s3->tmp.new_cipher->algorithms;
1678 /* Fool emacs indentation */
1680 #ifndef OPENSSL_NO_RSA
1681 else if (l & SSL_kRSA)
1684 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
1686 if (s->session->sess_cert->peer_rsa_tmp != NULL)
1687 rsa=s->session->sess_cert->peer_rsa_tmp;
1690 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1691 if ((pkey == NULL) ||
1692 (pkey->type != EVP_PKEY_RSA) ||
1693 (pkey->pkey.rsa == NULL))
1695 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1699 EVP_PKEY_free(pkey);
1702 tmp_buf[0]=s->client_version>>8;
1703 tmp_buf[1]=s->client_version&0xff;
1704 if (RAND_bytes(&(tmp_buf[2]),sizeof tmp_buf-2) <= 0)
1707 s->session->master_key_length=sizeof tmp_buf;
1710 /* Fix buf for TLS and beyond */
1711 if (s->version > SSL3_VERSION)
1713 n=RSA_public_encrypt(sizeof tmp_buf,
1714 tmp_buf,p,rsa,RSA_PKCS1_PADDING);
1716 if (s->options & SSL_OP_PKCS1_CHECK_1) p[1]++;
1717 if (s->options & SSL_OP_PKCS1_CHECK_2) tmp_buf[0]=0x70;
1721 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_BAD_RSA_ENCRYPT);
1725 /* Fix buf for TLS and beyond */
1726 if (s->version > SSL3_VERSION)
1732 s->session->master_key_length=
1733 s->method->ssl3_enc->generate_master_secret(s,
1734 s->session->master_key,
1735 tmp_buf,sizeof tmp_buf);
1736 OPENSSL_cleanse(tmp_buf,sizeof tmp_buf);
1739 #ifndef OPENSSL_NO_KRB5
1740 else if (l & SSL_kKRB5)
1742 krb5_error_code krb5rc;
1743 KSSL_CTX *kssl_ctx = s->kssl_ctx;
1744 /* krb5_data krb5_ap_req; */
1745 krb5_data *enc_ticket;
1746 krb5_data authenticator, *authp = NULL;
1747 EVP_CIPHER_CTX ciph_ctx;
1748 EVP_CIPHER *enc = NULL;
1749 unsigned char iv[EVP_MAX_IV_LENGTH];
1750 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
1751 unsigned char epms[SSL_MAX_MASTER_KEY_LENGTH
1752 + EVP_MAX_IV_LENGTH];
1753 int padl, outl = sizeof(epms);
1755 EVP_CIPHER_CTX_init(&ciph_ctx);
1758 printf("ssl3_send_client_key_exchange(%lx & %lx)\n",
1760 #endif /* KSSL_DEBUG */
1764 if (KRB5SENDAUTH) authp = &authenticator;
1765 #endif /* KRB5SENDAUTH */
1767 krb5rc = kssl_cget_tkt(kssl_ctx, &enc_ticket, authp,
1769 enc = kssl_map_enc(kssl_ctx->enctype);
1774 printf("kssl_cget_tkt rtn %d\n", krb5rc);
1775 if (krb5rc && kssl_err.text)
1776 printf("kssl_cget_tkt kssl_err=%s\n", kssl_err.text);
1778 #endif /* KSSL_DEBUG */
1782 ssl3_send_alert(s,SSL3_AL_FATAL,
1783 SSL_AD_HANDSHAKE_FAILURE);
1784 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1789 /* 20010406 VRS - Earlier versions used KRB5 AP_REQ
1790 ** in place of RFC 2712 KerberosWrapper, as in:
1792 ** Send ticket (copy to *p, set n = length)
1793 ** n = krb5_ap_req.length;
1794 ** memcpy(p, krb5_ap_req.data, krb5_ap_req.length);
1795 ** if (krb5_ap_req.data)
1796 ** kssl_krb5_free_data_contents(NULL,&krb5_ap_req);
1798 ** Now using real RFC 2712 KerberosWrapper
1799 ** (Thanks to Simon Wilkinson <sxw@sxw.org.uk>)
1800 ** Note: 2712 "opaque" types are here replaced
1801 ** with a 2-byte length followed by the value.
1803 ** KerberosWrapper= xx xx asn1ticket 0 0 xx xx encpms
1804 ** Where "xx xx" = length bytes. Shown here with
1805 ** optional authenticator omitted.
1808 /* KerberosWrapper.Ticket */
1809 s2n(enc_ticket->length,p);
1810 memcpy(p, enc_ticket->data, enc_ticket->length);
1811 p+= enc_ticket->length;
1812 n = enc_ticket->length + 2;
1814 /* KerberosWrapper.Authenticator */
1815 if (authp && authp->length)
1817 s2n(authp->length,p);
1818 memcpy(p, authp->data, authp->length);
1820 n+= authp->length + 2;
1828 s2n(0,p);/* null authenticator length */
1832 if (RAND_bytes(tmp_buf,sizeof tmp_buf) <= 0)
1835 /* 20010420 VRS. Tried it this way; failed.
1836 ** EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,NULL);
1837 ** EVP_CIPHER_CTX_set_key_length(&ciph_ctx,
1838 ** kssl_ctx->length);
1839 ** EVP_EncryptInit_ex(&ciph_ctx,NULL, key,iv);
1842 memset(iv, 0, sizeof iv); /* per RFC 1510 */
1843 EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,
1845 EVP_EncryptUpdate(&ciph_ctx,epms,&outl,tmp_buf,
1847 EVP_EncryptFinal_ex(&ciph_ctx,&(epms[outl]),&padl);
1849 if (outl > sizeof epms)
1851 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
1854 EVP_CIPHER_CTX_cleanup(&ciph_ctx);
1856 /* KerberosWrapper.EncryptedPreMasterSecret */
1858 memcpy(p, epms, outl);
1862 s->session->master_key_length=
1863 s->method->ssl3_enc->generate_master_secret(s,
1864 s->session->master_key,
1865 tmp_buf, sizeof tmp_buf);
1867 OPENSSL_cleanse(tmp_buf, sizeof tmp_buf);
1868 OPENSSL_cleanse(epms, outl);
1871 #ifndef OPENSSL_NO_DH
1872 else if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
1874 DH *dh_srvr,*dh_clnt;
1876 if (s->session->sess_cert->peer_dh_tmp != NULL)
1877 dh_srvr=s->session->sess_cert->peer_dh_tmp;
1880 /* we get them from the cert */
1881 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1882 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_DH_PARAMETERS);
1886 /* generate a new random key */
1887 if ((dh_clnt=DHparams_dup(dh_srvr)) == NULL)
1889 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1892 if (!DH_generate_key(dh_clnt))
1894 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1898 /* use the 'p' output buffer for the DH key, but
1899 * make sure to clear it out afterwards */
1901 n=DH_compute_key(p,dh_srvr->pub_key,dh_clnt);
1905 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1909 /* generate master key from the result */
1910 s->session->master_key_length=
1911 s->method->ssl3_enc->generate_master_secret(s,
1912 s->session->master_key,p,n);
1916 /* send off the data */
1917 n=BN_num_bytes(dh_clnt->pub_key);
1919 BN_bn2bin(dh_clnt->pub_key,p);
1924 /* perhaps clean things up a bit EAY EAY EAY EAY*/
1928 #ifndef OPENSSL_NO_ECDH
1929 else if ((l & SSL_kECDH) || (l & SSL_kECDHE))
1931 const EC_GROUP *srvr_group = NULL;
1933 int ecdh_clnt_cert = 0;
1936 /* Did we send out the client's
1937 * ECDH share for use in premaster
1938 * computation as part of client certificate?
1939 * If so, set ecdh_clnt_cert to 1.
1941 if ((l & SSL_kECDH) && (s->cert != NULL))
1943 /* XXX: For now, we do not support client
1944 * authentication using ECDH certificates.
1945 * To add such support, one needs to add
1946 * code that checks for appropriate
1947 * conditions and sets ecdh_clnt_cert to 1.
1948 * For example, the cert have an ECC
1949 * key on the same curve as the server's
1950 * and the key should be authorized for
1953 * One also needs to add code in ssl3_connect
1954 * to skip sending the certificate verify
1957 * if ((s->cert->key->privatekey != NULL) &&
1958 * (s->cert->key->privatekey->type ==
1959 * EVP_PKEY_EC) && ...)
1960 * ecdh_clnt_cert = 1;
1964 if (s->session->sess_cert->peer_ecdh_tmp != NULL)
1966 tkey = s->session->sess_cert->peer_ecdh_tmp;
1970 /* Get the Server Public Key from Cert */
1971 srvr_pub_pkey = X509_get_pubkey(s->session-> \
1972 sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
1973 if ((srvr_pub_pkey == NULL) ||
1974 (srvr_pub_pkey->type != EVP_PKEY_EC) ||
1975 (srvr_pub_pkey->pkey.ec == NULL))
1977 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1978 ERR_R_INTERNAL_ERROR);
1982 tkey = srvr_pub_pkey->pkey.ec;
1985 srvr_group = EC_KEY_get0_group(tkey);
1986 srvr_ecpoint = EC_KEY_get0_public_key(tkey);
1988 if ((srvr_group == NULL) || (srvr_ecpoint == NULL))
1990 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1991 ERR_R_INTERNAL_ERROR);
1995 if ((clnt_ecdh=EC_KEY_new()) == NULL)
1997 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
2001 if (!EC_KEY_set_group(clnt_ecdh, srvr_group))
2003 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_EC_LIB);
2008 /* Reuse key info from our certificate
2009 * We only need our private key to perform
2010 * the ECDH computation.
2012 const BIGNUM *priv_key;
2013 tkey = s->cert->key->privatekey->pkey.ec;
2014 priv_key = EC_KEY_get0_private_key(tkey);
2015 if (priv_key == NULL)
2017 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
2020 if (!EC_KEY_set_private_key(clnt_ecdh, priv_key))
2022 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_EC_LIB);
2028 /* Generate a new ECDH key pair */
2029 if (!(EC_KEY_generate_key(clnt_ecdh)))
2031 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_ECDH_LIB);
2036 /* use the 'p' output buffer for the ECDH key, but
2037 * make sure to clear it out afterwards
2040 field_size = EC_GROUP_get_degree(srvr_group);
2041 if (field_size <= 0)
2043 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2047 n=ECDH_compute_key(p, (field_size+7)/8, srvr_ecpoint, clnt_ecdh, NULL);
2050 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2055 /* generate master key from the result */
2056 s->session->master_key_length = s->method->ssl3_enc \
2057 -> generate_master_secret(s,
2058 s->session->master_key,
2061 memset(p, 0, n); /* clean up */
2065 /* Send empty client key exch message */
2070 /* First check the size of encoding and
2071 * allocate memory accordingly.
2074 EC_POINT_point2oct(srvr_group,
2075 EC_KEY_get0_public_key(clnt_ecdh),
2076 POINT_CONVERSION_UNCOMPRESSED,
2079 encodedPoint = (unsigned char *)
2080 OPENSSL_malloc(encoded_pt_len *
2081 sizeof(unsigned char));
2082 bn_ctx = BN_CTX_new();
2083 if ((encodedPoint == NULL) ||
2086 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
2090 /* Encode the public key */
2091 n = EC_POINT_point2oct(srvr_group,
2092 EC_KEY_get0_public_key(clnt_ecdh),
2093 POINT_CONVERSION_UNCOMPRESSED,
2094 encodedPoint, encoded_pt_len, bn_ctx);
2096 *p = n; /* length of encoded point */
2097 /* Encoded point will be copied here */
2099 /* copy the point */
2100 memcpy((unsigned char *)p, encodedPoint, n);
2101 /* increment n to account for length field */
2105 /* Free allocated memory */
2106 BN_CTX_free(bn_ctx);
2107 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2108 if (clnt_ecdh != NULL)
2109 EC_KEY_free(clnt_ecdh);
2110 EVP_PKEY_free(srvr_pub_pkey);
2112 #endif /* !OPENSSL_NO_ECDH */
2115 ssl3_send_alert(s, SSL3_AL_FATAL,
2116 SSL_AD_HANDSHAKE_FAILURE);
2117 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2118 ERR_R_INTERNAL_ERROR);
2122 *(d++)=SSL3_MT_CLIENT_KEY_EXCHANGE;
2125 s->state=SSL3_ST_CW_KEY_EXCH_B;
2126 /* number of bytes to write */
2131 /* SSL3_ST_CW_KEY_EXCH_B */
2132 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2134 #ifndef OPENSSL_NO_ECDH
2135 BN_CTX_free(bn_ctx);
2136 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2137 if (clnt_ecdh != NULL)
2138 EC_KEY_free(clnt_ecdh);
2139 EVP_PKEY_free(srvr_pub_pkey);
2144 int ssl3_send_client_verify(SSL *s)
2146 unsigned char *p,*d;
2147 unsigned char data[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];
2149 #ifndef OPENSSL_NO_RSA
2153 #if !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
2157 if (s->state == SSL3_ST_CW_CERT_VRFY_A)
2159 d=(unsigned char *)s->init_buf->data;
2161 pkey=s->cert->key->privatekey;
2163 s->method->ssl3_enc->cert_verify_mac(s,&(s->s3->finish_dgst2),
2164 &(data[MD5_DIGEST_LENGTH]));
2166 #ifndef OPENSSL_NO_RSA
2167 if (pkey->type == EVP_PKEY_RSA)
2169 s->method->ssl3_enc->cert_verify_mac(s,
2170 &(s->s3->finish_dgst1),&(data[0]));
2171 if (RSA_sign(NID_md5_sha1, data,
2172 MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH,
2173 &(p[2]), &u, pkey->pkey.rsa) <= 0 )
2175 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_RSA_LIB);
2183 #ifndef OPENSSL_NO_DSA
2184 if (pkey->type == EVP_PKEY_DSA)
2186 if (!DSA_sign(pkey->save_type,
2187 &(data[MD5_DIGEST_LENGTH]),
2188 SHA_DIGEST_LENGTH,&(p[2]),
2189 (unsigned int *)&j,pkey->pkey.dsa))
2191 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_DSA_LIB);
2199 #ifndef OPENSSL_NO_ECDSA
2200 if (pkey->type == EVP_PKEY_EC)
2202 if (!ECDSA_sign(pkey->save_type,
2203 &(data[MD5_DIGEST_LENGTH]),
2204 SHA_DIGEST_LENGTH,&(p[2]),
2205 (unsigned int *)&j,pkey->pkey.ec))
2207 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,
2217 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_INTERNAL_ERROR);
2220 *(d++)=SSL3_MT_CERTIFICATE_VERIFY;
2223 s->state=SSL3_ST_CW_CERT_VRFY_B;
2224 s->init_num=(int)n+4;
2227 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2232 int ssl3_send_client_certificate(SSL *s)
2235 EVP_PKEY *pkey=NULL;
2239 if (s->state == SSL3_ST_CW_CERT_A)
2241 if ((s->cert == NULL) ||
2242 (s->cert->key->x509 == NULL) ||
2243 (s->cert->key->privatekey == NULL))
2244 s->state=SSL3_ST_CW_CERT_B;
2246 s->state=SSL3_ST_CW_CERT_C;
2249 /* We need to get a client cert */
2250 if (s->state == SSL3_ST_CW_CERT_B)
2252 /* If we get an error, we need to
2253 * ssl->rwstate=SSL_X509_LOOKUP; return(-1);
2254 * We then get retied later */
2256 if (s->ctx->client_cert_cb != NULL)
2257 i=s->ctx->client_cert_cb(s,&(x509),&(pkey));
2260 s->rwstate=SSL_X509_LOOKUP;
2263 s->rwstate=SSL_NOTHING;
2264 if ((i == 1) && (pkey != NULL) && (x509 != NULL))
2266 s->state=SSL3_ST_CW_CERT_B;
2267 if ( !SSL_use_certificate(s,x509) ||
2268 !SSL_use_PrivateKey(s,pkey))
2274 SSLerr(SSL_F_SSL3_SEND_CLIENT_CERTIFICATE,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK);
2277 if (x509 != NULL) X509_free(x509);
2278 if (pkey != NULL) EVP_PKEY_free(pkey);
2281 if (s->version == SSL3_VERSION)
2283 s->s3->tmp.cert_req=0;
2284 ssl3_send_alert(s,SSL3_AL_WARNING,SSL_AD_NO_CERTIFICATE);
2289 s->s3->tmp.cert_req=2;
2293 /* Ok, we have a cert */
2294 s->state=SSL3_ST_CW_CERT_C;
2297 if (s->state == SSL3_ST_CW_CERT_C)
2299 s->state=SSL3_ST_CW_CERT_D;
2300 l=ssl3_output_cert_chain(s,
2301 (s->s3->tmp.cert_req == 2)?NULL:s->cert->key->x509);
2305 /* SSL3_ST_CW_CERT_D */
2306 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2309 #define has_bits(i,m) (((i)&(m)) == (m))
2311 int ssl3_check_cert_and_algorithm(SSL *s)
2315 EVP_PKEY *pkey=NULL;
2317 #ifndef OPENSSL_NO_RSA
2320 #ifndef OPENSSL_NO_DH
2324 sc=s->session->sess_cert;
2328 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,ERR_R_INTERNAL_ERROR);
2332 algs=s->s3->tmp.new_cipher->algorithms;
2334 /* we don't have a certificate */
2335 if (algs & (SSL_aDH|SSL_aNULL|SSL_aKRB5))
2338 #ifndef OPENSSL_NO_RSA
2339 rsa=s->session->sess_cert->peer_rsa_tmp;
2341 #ifndef OPENSSL_NO_DH
2342 dh=s->session->sess_cert->peer_dh_tmp;
2345 /* This is the passed certificate */
2347 idx=sc->peer_cert_type;
2348 #ifndef OPENSSL_NO_ECDH
2349 if (idx == SSL_PKEY_ECC)
2351 if (check_srvr_ecc_cert_and_alg(sc->peer_pkeys[idx].x509,
2352 s->s3->tmp.new_cipher) == 0)
2353 { /* check failed */
2354 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_BAD_ECC_CERT);
2363 pkey=X509_get_pubkey(sc->peer_pkeys[idx].x509);
2364 i=X509_certificate_type(sc->peer_pkeys[idx].x509,pkey);
2365 EVP_PKEY_free(pkey);
2368 /* Check that we have a certificate if we require one */
2369 if ((algs & SSL_aRSA) && !has_bits(i,EVP_PK_RSA|EVP_PKT_SIGN))
2371 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_SIGNING_CERT);
2374 #ifndef OPENSSL_NO_DSA
2375 else if ((algs & SSL_aDSS) && !has_bits(i,EVP_PK_DSA|EVP_PKT_SIGN))
2377 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DSA_SIGNING_CERT);
2381 #ifndef OPENSSL_NO_RSA
2382 if ((algs & SSL_kRSA) &&
2383 !(has_bits(i,EVP_PK_RSA|EVP_PKT_ENC) || (rsa != NULL)))
2385 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_ENCRYPTING_CERT);
2389 #ifndef OPENSSL_NO_DH
2390 if ((algs & SSL_kEDH) &&
2391 !(has_bits(i,EVP_PK_DH|EVP_PKT_EXCH) || (dh != NULL)))
2393 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_KEY);
2396 else if ((algs & SSL_kDHr) && !has_bits(i,EVP_PK_DH|EVP_PKS_RSA))
2398 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_RSA_CERT);
2401 #ifndef OPENSSL_NO_DSA
2402 else if ((algs & SSL_kDHd) && !has_bits(i,EVP_PK_DH|EVP_PKS_DSA))
2404 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_DSA_CERT);
2410 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) && !has_bits(i,EVP_PKT_EXP))
2412 #ifndef OPENSSL_NO_RSA
2413 if (algs & SSL_kRSA)
2416 || RSA_size(rsa)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2418 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_RSA_KEY);
2424 #ifndef OPENSSL_NO_DH
2425 if (algs & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
2428 || DH_size(dh)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2430 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_DH_KEY);
2437 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);
2443 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
2449 #ifndef OPENSSL_NO_ECDH
2450 /* This is the complement of nid2curve_id in s3_srvr.c. */
2451 static int curve_id2nid(int curve_id)
2453 /* ECC curves from draft-ietf-tls-ecc-01.txt (Mar 15, 2001)
2454 * (no changes in draft-ietf-tls-ecc-03.txt [June 2003]) */
2455 static int nid_list[26] =
2458 NID_sect163k1, /* sect163k1 (1) */
2459 NID_sect163r1, /* sect163r1 (2) */
2460 NID_sect163r2, /* sect163r2 (3) */
2461 NID_sect193r1, /* sect193r1 (4) */
2462 NID_sect193r2, /* sect193r2 (5) */
2463 NID_sect233k1, /* sect233k1 (6) */
2464 NID_sect233r1, /* sect233r1 (7) */
2465 NID_sect239k1, /* sect239k1 (8) */
2466 NID_sect283k1, /* sect283k1 (9) */
2467 NID_sect283r1, /* sect283r1 (10) */
2468 NID_sect409k1, /* sect409k1 (11) */
2469 NID_sect409r1, /* sect409r1 (12) */
2470 NID_sect571k1, /* sect571k1 (13) */
2471 NID_sect571r1, /* sect571r1 (14) */
2472 NID_secp160k1, /* secp160k1 (15) */
2473 NID_secp160r1, /* secp160r1 (16) */
2474 NID_secp160r2, /* secp160r2 (17) */
2475 NID_secp192k1, /* secp192k1 (18) */
2476 NID_X9_62_prime192v1, /* secp192r1 (19) */
2477 NID_secp224k1, /* secp224k1 (20) */
2478 NID_secp224r1, /* secp224r1 (21) */
2479 NID_secp256k1, /* secp256k1 (22) */
2480 NID_X9_62_prime256v1, /* secp256r1 (23) */
2481 NID_secp384r1, /* secp384r1 (24) */
2482 NID_secp521r1 /* secp521r1 (25) */
2485 if ((curve_id < 1) || (curve_id > 25)) return 0;
2487 return nid_list[curve_id];