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) 1998-2003 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 #include <openssl/dh.h>
134 #include <openssl/bn.h>
136 static SSL_METHOD *ssl3_get_client_method(int ver);
137 static int ssl3_client_hello(SSL *s);
138 static int ssl3_get_server_hello(SSL *s);
139 static int ssl3_get_certificate_request(SSL *s);
140 static int ca_dn_cmp(const X509_NAME * const *a,const X509_NAME * const *b);
141 static int ssl3_get_server_done(SSL *s);
142 static int ssl3_send_client_verify(SSL *s);
143 static int ssl3_send_client_certificate(SSL *s);
144 static int ssl3_send_client_key_exchange(SSL *s);
145 static int ssl3_get_key_exchange(SSL *s);
146 static int ssl3_get_server_certificate(SSL *s);
147 static int ssl3_check_cert_and_algorithm(SSL *s);
149 #ifndef OPENSSL_NO_ECDH
150 static int curve_id2nid(int curve_id);
151 int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs);
154 static SSL_METHOD *ssl3_get_client_method(int ver)
156 if (ver == SSL3_VERSION)
157 return(SSLv3_client_method());
162 SSL_METHOD *SSLv3_client_method(void)
165 static SSL_METHOD SSLv3_client_data;
169 CRYPTO_w_lock(CRYPTO_LOCK_SSL_METHOD);
173 memcpy((char *)&SSLv3_client_data,(char *)sslv3_base_method(),
175 SSLv3_client_data.ssl_connect=ssl3_connect;
176 SSLv3_client_data.get_ssl_method=ssl3_get_client_method;
180 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_METHOD);
182 return(&SSLv3_client_data);
185 int ssl3_connect(SSL *s)
188 unsigned long Time=time(NULL),l;
190 void (*cb)(const SSL *ssl,int type,int val)=NULL;
192 int new_state,state,skip=0;;
194 RAND_add(&Time,sizeof(Time),0);
198 if (s->info_callback != NULL)
200 else if (s->ctx->info_callback != NULL)
201 cb=s->ctx->info_callback;
204 if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
212 case SSL_ST_RENEGOTIATE:
214 s->state=SSL_ST_CONNECT;
215 s->ctx->stats.sess_connect_renegotiate++;
219 case SSL_ST_BEFORE|SSL_ST_CONNECT:
220 case SSL_ST_OK|SSL_ST_CONNECT:
223 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
225 if ((s->version & 0xff00 ) != 0x0300)
227 SSLerr(SSL_F_SSL3_CONNECT, ERR_R_INTERNAL_ERROR);
232 /* s->version=SSL3_VERSION; */
233 s->type=SSL_ST_CONNECT;
235 if (s->init_buf == NULL)
237 if ((buf=BUF_MEM_new()) == NULL)
242 if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))
251 if (!ssl3_setup_buffers(s)) { ret= -1; goto end; }
253 /* setup buffing BIO */
254 if (!ssl_init_wbio_buffer(s,0)) { ret= -1; goto end; }
256 /* don't push the buffering BIO quite yet */
258 ssl3_init_finished_mac(s);
260 s->state=SSL3_ST_CW_CLNT_HELLO_A;
261 s->ctx->stats.sess_connect++;
265 case SSL3_ST_CW_CLNT_HELLO_A:
266 case SSL3_ST_CW_CLNT_HELLO_B:
269 ret=ssl3_client_hello(s);
270 if (ret <= 0) goto end;
271 s->state=SSL3_ST_CR_SRVR_HELLO_A;
274 /* turn on buffering for the next lot of output */
275 if (s->bbio != s->wbio)
276 s->wbio=BIO_push(s->bbio,s->wbio);
280 case SSL3_ST_CR_SRVR_HELLO_A:
281 case SSL3_ST_CR_SRVR_HELLO_B:
282 ret=ssl3_get_server_hello(s);
283 if (ret <= 0) goto end;
285 s->state=SSL3_ST_CR_FINISHED_A;
287 s->state=SSL3_ST_CR_CERT_A;
291 case SSL3_ST_CR_CERT_A:
292 case SSL3_ST_CR_CERT_B:
293 /* Check if it is anon DH/ECDH */
294 if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
296 ret=ssl3_get_server_certificate(s);
297 if (ret <= 0) goto end;
301 s->state=SSL3_ST_CR_KEY_EXCH_A;
305 case SSL3_ST_CR_KEY_EXCH_A:
306 case SSL3_ST_CR_KEY_EXCH_B:
307 ret=ssl3_get_key_exchange(s);
308 if (ret <= 0) goto end;
309 s->state=SSL3_ST_CR_CERT_REQ_A;
312 /* at this point we check that we have the
313 * required stuff from the server */
314 if (!ssl3_check_cert_and_algorithm(s))
321 case SSL3_ST_CR_CERT_REQ_A:
322 case SSL3_ST_CR_CERT_REQ_B:
323 ret=ssl3_get_certificate_request(s);
324 if (ret <= 0) goto end;
325 s->state=SSL3_ST_CR_SRVR_DONE_A;
329 case SSL3_ST_CR_SRVR_DONE_A:
330 case SSL3_ST_CR_SRVR_DONE_B:
331 ret=ssl3_get_server_done(s);
332 if (ret <= 0) goto end;
333 if (s->s3->tmp.cert_req)
334 s->state=SSL3_ST_CW_CERT_A;
336 s->state=SSL3_ST_CW_KEY_EXCH_A;
341 case SSL3_ST_CW_CERT_A:
342 case SSL3_ST_CW_CERT_B:
343 case SSL3_ST_CW_CERT_C:
344 case SSL3_ST_CW_CERT_D:
345 ret=ssl3_send_client_certificate(s);
346 if (ret <= 0) goto end;
347 s->state=SSL3_ST_CW_KEY_EXCH_A;
351 case SSL3_ST_CW_KEY_EXCH_A:
352 case SSL3_ST_CW_KEY_EXCH_B:
353 ret=ssl3_send_client_key_exchange(s);
354 if (ret <= 0) goto end;
355 l=s->s3->tmp.new_cipher->algorithms;
356 /* EAY EAY EAY need to check for DH fix cert
358 /* For TLS, cert_req is set to 2, so a cert chain
359 * of nothing is sent, but no verify packet is sent */
360 /* XXX: For now, we do not support client
361 * authentication in ECDH cipher suites with
362 * ECDH (rather than ECDSA) certificates.
363 * We need to skip the certificate verify
364 * message when client's ECDH public key is sent
365 * inside the client certificate.
367 if (s->s3->tmp.cert_req == 1)
369 s->state=SSL3_ST_CW_CERT_VRFY_A;
373 s->state=SSL3_ST_CW_CHANGE_A;
374 s->s3->change_cipher_spec=0;
380 case SSL3_ST_CW_CERT_VRFY_A:
381 case SSL3_ST_CW_CERT_VRFY_B:
382 ret=ssl3_send_client_verify(s);
383 if (ret <= 0) goto end;
384 s->state=SSL3_ST_CW_CHANGE_A;
386 s->s3->change_cipher_spec=0;
389 case SSL3_ST_CW_CHANGE_A:
390 case SSL3_ST_CW_CHANGE_B:
391 ret=ssl3_send_change_cipher_spec(s,
392 SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B);
393 if (ret <= 0) goto end;
394 s->state=SSL3_ST_CW_FINISHED_A;
397 s->session->cipher=s->s3->tmp.new_cipher;
398 if (s->s3->tmp.new_compression == NULL)
399 s->session->compress_meth=0;
401 s->session->compress_meth=
402 s->s3->tmp.new_compression->id;
403 if (!s->method->ssl3_enc->setup_key_block(s))
409 if (!s->method->ssl3_enc->change_cipher_state(s,
410 SSL3_CHANGE_CIPHER_CLIENT_WRITE))
418 case SSL3_ST_CW_FINISHED_A:
419 case SSL3_ST_CW_FINISHED_B:
420 ret=ssl3_send_finished(s,
421 SSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B,
422 s->method->ssl3_enc->client_finished_label,
423 s->method->ssl3_enc->client_finished_label_len);
424 if (ret <= 0) goto end;
425 s->state=SSL3_ST_CW_FLUSH;
428 s->s3->flags&= ~SSL3_FLAGS_POP_BUFFER;
431 s->s3->tmp.next_state=SSL_ST_OK;
432 if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED)
435 s->s3->flags|=SSL3_FLAGS_POP_BUFFER;
436 s->s3->delay_buf_pop_ret=0;
441 s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A;
446 case SSL3_ST_CR_FINISHED_A:
447 case SSL3_ST_CR_FINISHED_B:
449 ret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A,
450 SSL3_ST_CR_FINISHED_B);
451 if (ret <= 0) goto end;
454 s->state=SSL3_ST_CW_CHANGE_A;
460 case SSL3_ST_CW_FLUSH:
461 /* number of bytes to be flushed */
462 num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);
465 s->rwstate=SSL_WRITING;
466 num1=BIO_flush(s->wbio);
467 if (num1 <= 0) { ret= -1; goto end; }
468 s->rwstate=SSL_NOTHING;
471 s->state=s->s3->tmp.next_state;
475 /* clean a few things up */
476 ssl3_cleanup_key_block(s);
478 if (s->init_buf != NULL)
480 BUF_MEM_free(s->init_buf);
484 /* If we are not 'joining' the last two packets,
485 * remove the buffering now */
486 if (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER))
487 ssl_free_wbio_buffer(s);
488 /* else do it later in ssl3_write */
493 ssl_update_cache(s,SSL_SESS_CACHE_CLIENT);
494 if (s->hit) s->ctx->stats.sess_hit++;
498 s->handshake_func=ssl3_connect;
499 s->ctx->stats.sess_connect_good++;
501 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);
507 SSLerr(SSL_F_SSL3_CONNECT,SSL_R_UNKNOWN_STATE);
513 /* did we do anything */
514 if (!s->s3->tmp.reuse_message && !skip)
518 if ((ret=BIO_flush(s->wbio)) <= 0)
522 if ((cb != NULL) && (s->state != state))
526 cb(s,SSL_CB_CONNECT_LOOP,1);
537 cb(s,SSL_CB_CONNECT_EXIT,ret);
542 static int ssl3_client_hello(SSL *s)
547 unsigned long Time,l;
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=time(NULL); /* Time */
565 RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-sizeof(Time));
567 /* Do the message type and length last */
570 *(p++)=s->version>>8;
571 *(p++)=s->version&0xff;
572 s->client_version=s->version;
575 memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
582 i=s->session->session_id_length;
586 if (i > (int)sizeof(s->session->session_id))
588 SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
591 memcpy(p,s->session->session_id,i);
595 /* Ciphers supported */
596 i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]));
599 SSLerr(SSL_F_SSL3_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
606 if (s->ctx->comp_methods == NULL)
609 j=sk_SSL_COMP_num(s->ctx->comp_methods);
613 comp=sk_SSL_COMP_value(s->ctx->comp_methods,i);
616 *(p++)=0; /* Add the NULL method */
620 *(d++)=SSL3_MT_CLIENT_HELLO;
623 s->state=SSL3_ST_CW_CLNT_HELLO_B;
624 /* number of bytes to write */
629 /* SSL3_ST_CW_CLNT_HELLO_B */
630 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
635 static int ssl3_get_server_hello(SSL *s)
637 STACK_OF(SSL_CIPHER) *sk;
645 n=ssl3_get_message(s,
646 SSL3_ST_CR_SRVR_HELLO_A,
647 SSL3_ST_CR_SRVR_HELLO_B,
648 SSL3_MT_SERVER_HELLO,
652 if (!ok) return((int)n);
653 d=p=(unsigned char *)s->init_msg;
655 if ((p[0] != (s->version>>8)) || (p[1] != (s->version&0xff)))
657 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_SSL_VERSION);
658 s->version=(s->version&0xff00)|p[1];
659 al=SSL_AD_PROTOCOL_VERSION;
664 /* load the server hello data */
665 /* load the server random */
666 memcpy(s->s3->server_random,p,SSL3_RANDOM_SIZE);
669 /* get the session-id */
672 if ((j > sizeof s->session->session_id) || (j > SSL3_SESSION_ID_SIZE))
674 al=SSL_AD_ILLEGAL_PARAMETER;
675 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SSL3_SESSION_ID_TOO_LONG);
679 if (j != 0 && j == s->session->session_id_length
680 && memcmp(p,s->session->session_id,j) == 0)
682 if(s->sid_ctx_length != s->session->sid_ctx_length
683 || memcmp(s->session->sid_ctx,s->sid_ctx,s->sid_ctx_length))
685 /* actually a client application bug */
686 al=SSL_AD_ILLEGAL_PARAMETER;
687 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);
692 else /* a miss or crap from the other end */
694 /* If we were trying for session-id reuse, make a new
695 * SSL_SESSION so we don't stuff up other people */
697 if (s->session->session_id_length > 0)
699 if (!ssl_get_new_session(s,0))
701 al=SSL_AD_INTERNAL_ERROR;
705 s->session->session_id_length=j;
706 memcpy(s->session->session_id,p,j); /* j could be 0 */
709 c=ssl_get_cipher_by_char(s,p);
713 al=SSL_AD_ILLEGAL_PARAMETER;
714 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNKNOWN_CIPHER_RETURNED);
717 p+=ssl_put_cipher_by_char(s,NULL,NULL);
719 sk=ssl_get_ciphers_by_id(s);
720 i=sk_SSL_CIPHER_find(sk,c);
723 /* we did not say we would use this cipher */
724 al=SSL_AD_ILLEGAL_PARAMETER;
725 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_CIPHER_RETURNED);
729 /* Depending on the session caching (internal/external), the cipher
730 and/or cipher_id values may not be set. Make sure that
731 cipher_id is set and use it for comparison. */
732 if (s->session->cipher)
733 s->session->cipher_id = s->session->cipher->id;
734 if (s->hit && (s->session->cipher_id != c->id))
737 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG))
739 al=SSL_AD_ILLEGAL_PARAMETER;
740 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED);
744 s->s3->tmp.new_cipher=c;
746 /* lets get the compression algorithm */
752 comp=ssl3_comp_find(s->ctx->comp_methods,j);
754 if ((j != 0) && (comp == NULL))
756 al=SSL_AD_ILLEGAL_PARAMETER;
757 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
762 s->s3->tmp.new_compression=comp;
767 /* wrong packet length */
768 al=SSL_AD_DECODE_ERROR;
769 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_PACKET_LENGTH);
775 ssl3_send_alert(s,SSL3_AL_FATAL,al);
780 static int ssl3_get_server_certificate(SSL *s)
783 unsigned long n,nc,llen,l;
785 const unsigned char *q,*p;
787 STACK_OF(X509) *sk=NULL;
790 int need_cert = 1; /* VRS: 0=> will allow null cert if auth == KRB5 */
792 n=ssl3_get_message(s,
799 if (!ok) return((int)n);
801 if (s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE)
803 s->s3->tmp.reuse_message=1;
807 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE)
809 al=SSL_AD_UNEXPECTED_MESSAGE;
810 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_BAD_MESSAGE_TYPE);
813 p=d=(unsigned char *)s->init_msg;
815 if ((sk=sk_X509_new_null()) == NULL)
817 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
824 al=SSL_AD_DECODE_ERROR;
825 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_LENGTH_MISMATCH);
828 for (nc=0; nc<llen; )
833 al=SSL_AD_DECODE_ERROR;
834 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
839 x=d2i_X509(NULL,&q,l);
842 al=SSL_AD_BAD_CERTIFICATE;
843 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_ASN1_LIB);
848 al=SSL_AD_DECODE_ERROR;
849 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
852 if (!sk_X509_push(sk,x))
854 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
862 i=ssl_verify_cert_chain(s,sk);
863 if ((s->verify_mode != SSL_VERIFY_NONE) && (!i)
864 #ifndef OPENSSL_NO_KRB5
865 && (s->s3->tmp.new_cipher->algorithms & (SSL_MKEY_MASK|SSL_AUTH_MASK))
866 != (SSL_aKRB5|SSL_kKRB5)
867 #endif /* OPENSSL_NO_KRB5 */
870 al=ssl_verify_alarm_type(s->verify_result);
871 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED);
874 ERR_clear_error(); /* but we keep s->verify_result */
876 sc=ssl_sess_cert_new();
877 if (sc == NULL) goto err;
879 if (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert);
880 s->session->sess_cert=sc;
883 /* Inconsistency alert: cert_chain does include the peer's
884 * certificate, which we don't include in s3_srvr.c */
885 x=sk_X509_value(sk,0);
887 /* VRS 19990621: possible memory leak; sk=null ==> !sk_pop_free() @end*/
889 pkey=X509_get_pubkey(x);
891 /* VRS: allow null cert if auth == KRB5 */
892 need_cert = ((s->s3->tmp.new_cipher->algorithms
893 & (SSL_MKEY_MASK|SSL_AUTH_MASK))
894 == (SSL_aKRB5|SSL_kKRB5))? 0: 1;
897 printf("pkey,x = %p, %p\n", pkey,x);
898 printf("ssl_cert_type(x,pkey) = %d\n", ssl_cert_type(x,pkey));
899 printf("cipher, alg, nc = %s, %lx, %d\n", s->s3->tmp.new_cipher->name,
900 s->s3->tmp.new_cipher->algorithms, need_cert);
901 #endif /* KSSL_DEBUG */
903 if (need_cert && ((pkey == NULL) || EVP_PKEY_missing_parameters(pkey)))
907 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
908 SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS);
912 i=ssl_cert_type(x,pkey);
913 if (need_cert && i < 0)
917 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
918 SSL_R_UNKNOWN_CERTIFICATE_TYPE);
924 sc->peer_cert_type=i;
925 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
926 /* Why would the following ever happen?
927 * We just created sc a couple of lines ago. */
928 if (sc->peer_pkeys[i].x509 != NULL)
929 X509_free(sc->peer_pkeys[i].x509);
930 sc->peer_pkeys[i].x509=x;
931 sc->peer_key= &(sc->peer_pkeys[i]);
933 if (s->session->peer != NULL)
934 X509_free(s->session->peer);
935 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
940 sc->peer_cert_type=i;
943 if (s->session->peer != NULL)
944 X509_free(s->session->peer);
945 s->session->peer=NULL;
947 s->session->verify_result = s->verify_result;
955 ssl3_send_alert(s,SSL3_AL_FATAL,al);
960 sk_X509_pop_free(sk,X509_free);
964 static int ssl3_get_key_exchange(SSL *s)
966 #ifndef OPENSSL_NO_RSA
967 unsigned char *q,md_buf[EVP_MAX_MD_SIZE*2];
970 unsigned char *param,*p;
971 int al,i,j,param_len,ok;
974 #ifndef OPENSSL_NO_RSA
977 #ifndef OPENSSL_NO_DH
980 #ifndef OPENSSL_NO_ECDH
982 BN_CTX *bn_ctx = NULL;
983 EC_POINT *srvr_ecpoint = NULL;
985 int encoded_pt_len = 0;
988 /* use same message size as in ssl3_get_certificate_request()
989 * as ServerKeyExchange message may be skipped */
990 n=ssl3_get_message(s,
991 SSL3_ST_CR_KEY_EXCH_A,
992 SSL3_ST_CR_KEY_EXCH_B,
997 if (!ok) return((int)n);
999 if (s->s3->tmp.message_type != SSL3_MT_SERVER_KEY_EXCHANGE)
1001 s->s3->tmp.reuse_message=1;
1005 param=p=(unsigned char *)s->init_msg;
1007 if (s->session->sess_cert != NULL)
1009 #ifndef OPENSSL_NO_RSA
1010 if (s->session->sess_cert->peer_rsa_tmp != NULL)
1012 RSA_free(s->session->sess_cert->peer_rsa_tmp);
1013 s->session->sess_cert->peer_rsa_tmp=NULL;
1016 #ifndef OPENSSL_NO_DH
1017 if (s->session->sess_cert->peer_dh_tmp)
1019 DH_free(s->session->sess_cert->peer_dh_tmp);
1020 s->session->sess_cert->peer_dh_tmp=NULL;
1023 #ifndef OPENSSL_NO_ECDH
1024 if (s->session->sess_cert->peer_ecdh_tmp)
1026 EC_KEY_free(s->session->sess_cert->peer_ecdh_tmp);
1027 s->session->sess_cert->peer_ecdh_tmp=NULL;
1033 s->session->sess_cert=ssl_sess_cert_new();
1037 alg=s->s3->tmp.new_cipher->algorithms;
1038 EVP_MD_CTX_init(&md_ctx);
1040 #ifndef OPENSSL_NO_RSA
1043 if ((rsa=RSA_new()) == NULL)
1045 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1052 al=SSL_AD_DECODE_ERROR;
1053 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_MODULUS_LENGTH);
1056 if (!(rsa->n=BN_bin2bn(p,i,rsa->n)))
1058 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1067 al=SSL_AD_DECODE_ERROR;
1068 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_E_LENGTH);
1071 if (!(rsa->e=BN_bin2bn(p,i,rsa->e)))
1073 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1079 /* this should be because we are using an export cipher */
1081 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1084 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1087 s->session->sess_cert->peer_rsa_tmp=rsa;
1090 #else /* OPENSSL_NO_RSA */
1094 #ifndef OPENSSL_NO_DH
1095 else if (alg & SSL_kEDH)
1097 if ((dh=DH_new()) == NULL)
1099 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_DH_LIB);
1106 al=SSL_AD_DECODE_ERROR;
1107 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_P_LENGTH);
1110 if (!(dh->p=BN_bin2bn(p,i,NULL)))
1112 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1121 al=SSL_AD_DECODE_ERROR;
1122 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_G_LENGTH);
1125 if (!(dh->g=BN_bin2bn(p,i,NULL)))
1127 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1136 al=SSL_AD_DECODE_ERROR;
1137 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_PUB_KEY_LENGTH);
1140 if (!(dh->pub_key=BN_bin2bn(p,i,NULL)))
1142 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1148 #ifndef OPENSSL_NO_RSA
1150 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1155 #ifndef OPENSSL_NO_DSA
1156 else if (alg & SSL_aDSS)
1157 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].x509);
1159 /* else anonymous DH, so no certificate or pkey. */
1161 s->session->sess_cert->peer_dh_tmp=dh;
1164 else if ((alg & SSL_kDHr) || (alg & SSL_kDHd))
1166 al=SSL_AD_ILLEGAL_PARAMETER;
1167 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
1170 #endif /* !OPENSSL_NO_DH */
1172 #ifndef OPENSSL_NO_ECDH
1173 else if (alg & SSL_kECDHE)
1175 if ((ecdh=EC_KEY_new()) == NULL)
1177 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1181 /* Extract elliptic curve parameters and the
1182 * server's ephemeral ECDH public key.
1183 * Keep accumulating lengths of various components in
1184 * param_len and make sure it never exceeds n.
1187 /* XXX: For now we only support named (not generic) curves
1188 * and the ECParameters in this case is just two bytes.
1191 if ((param_len > n) ||
1192 (*p != NAMED_CURVE_TYPE) ||
1193 ((curve_nid = curve_id2nid(*(p + 1))) == 0))
1195 al=SSL_AD_INTERNAL_ERROR;
1196 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS);
1200 if (!(ecdh->group=EC_GROUP_new_by_nid(curve_nid)))
1202 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
1206 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
1207 (EC_GROUP_get_degree(ecdh->group) > 163))
1209 al=SSL_AD_EXPORT_RESTRICTION;
1210 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
1216 /* Next, get the encoded ECPoint */
1217 if (((srvr_ecpoint = EC_POINT_new(ecdh->group)) == NULL) ||
1218 ((bn_ctx = BN_CTX_new()) == NULL))
1220 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1224 encoded_pt_len = *p; /* length of encoded point */
1226 param_len += (1 + encoded_pt_len);
1227 if ((param_len > n) ||
1228 (EC_POINT_oct2point(ecdh->group, srvr_ecpoint,
1229 p, encoded_pt_len, bn_ctx) == 0))
1231 al=SSL_AD_DECODE_ERROR;
1232 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_ECPOINT);
1239 /* The ECC/TLS specification does not mention
1240 * the use of DSA to sign ECParameters in the server
1241 * key exchange message. We do support RSA and ECDSA.
1244 #ifndef OPENSSL_NO_RSA
1245 else if (alg & SSL_aRSA)
1246 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1248 #ifndef OPENSSL_NO_ECDSA
1249 else if (alg & SSL_aECDSA)
1250 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
1252 /* else anonymous ECDH, so no certificate or pkey. */
1253 ecdh->pub_key = srvr_ecpoint;
1254 s->session->sess_cert->peer_ecdh_tmp=ecdh;
1256 BN_CTX_free(bn_ctx);
1257 srvr_ecpoint = NULL;
1259 else if (alg & SSL_kECDH)
1261 al=SSL_AD_UNEXPECTED_MESSAGE;
1262 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNEXPECTED_MESSAGE);
1265 #endif /* !OPENSSL_NO_ECDH */
1268 al=SSL_AD_HANDSHAKE_FAILURE;
1269 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
1274 /* p points to the next byte, there are 'n' bytes left */
1276 /* if it was signed, check the signature */
1281 j=EVP_PKEY_size(pkey);
1283 if ((i != n) || (n > j) || (n <= 0))
1285 /* wrong packet length */
1286 al=SSL_AD_DECODE_ERROR;
1287 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_WRONG_SIGNATURE_LENGTH);
1291 #ifndef OPENSSL_NO_RSA
1292 if (pkey->type == EVP_PKEY_RSA)
1298 for (num=2; num > 0; num--)
1300 EVP_DigestInit_ex(&md_ctx,(num == 2)
1301 ?s->ctx->md5:s->ctx->sha1, NULL);
1302 EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1303 EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1304 EVP_DigestUpdate(&md_ctx,param,param_len);
1305 EVP_DigestFinal_ex(&md_ctx,q,(unsigned int *)&i);
1309 i=RSA_verify(NID_md5_sha1, md_buf, j, p, n,
1313 al=SSL_AD_DECRYPT_ERROR;
1314 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_DECRYPT);
1320 al=SSL_AD_DECRYPT_ERROR;
1321 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1327 #ifndef OPENSSL_NO_DSA
1328 if (pkey->type == EVP_PKEY_DSA)
1331 EVP_VerifyInit_ex(&md_ctx,EVP_dss1(), NULL);
1332 EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1333 EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1334 EVP_VerifyUpdate(&md_ctx,param,param_len);
1335 if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey))
1338 al=SSL_AD_DECRYPT_ERROR;
1339 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1345 #ifndef OPENSSL_NO_ECDSA
1346 if (pkey->type == EVP_PKEY_EC)
1348 /* let's do ECDSA */
1349 EVP_VerifyInit_ex(&md_ctx,EVP_ecdsa(), NULL);
1350 EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1351 EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1352 EVP_VerifyUpdate(&md_ctx,param,param_len);
1353 if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey))
1356 al=SSL_AD_DECRYPT_ERROR;
1357 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1364 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1370 /* still data left over */
1371 if (!(alg & SSL_aNULL))
1373 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1378 al=SSL_AD_DECODE_ERROR;
1379 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_EXTRA_DATA_IN_MESSAGE);
1383 EVP_PKEY_free(pkey);
1384 EVP_MD_CTX_cleanup(&md_ctx);
1387 ssl3_send_alert(s,SSL3_AL_FATAL,al);
1389 EVP_PKEY_free(pkey);
1390 #ifndef OPENSSL_NO_RSA
1394 #ifndef OPENSSL_NO_DH
1398 #ifndef OPENSSL_NO_ECDH
1399 BN_CTX_free(bn_ctx);
1400 EC_POINT_free(srvr_ecpoint);
1404 EVP_MD_CTX_cleanup(&md_ctx);
1408 static int ssl3_get_certificate_request(SSL *s)
1411 unsigned long n,nc,l;
1412 unsigned int llen,ctype_num,i;
1414 const unsigned char *p,*q;
1416 STACK_OF(X509_NAME) *ca_sk=NULL;
1418 n=ssl3_get_message(s,
1419 SSL3_ST_CR_CERT_REQ_A,
1420 SSL3_ST_CR_CERT_REQ_B,
1425 if (!ok) return((int)n);
1427 s->s3->tmp.cert_req=0;
1429 if (s->s3->tmp.message_type == SSL3_MT_SERVER_DONE)
1431 s->s3->tmp.reuse_message=1;
1435 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE_REQUEST)
1437 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
1438 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_WRONG_MESSAGE_TYPE);
1442 /* TLS does not like anon-DH with client cert */
1443 if (s->version > SSL3_VERSION)
1445 l=s->s3->tmp.new_cipher->algorithms;
1448 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
1449 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER);
1454 p=d=(unsigned char *)s->init_msg;
1456 if ((ca_sk=sk_X509_NAME_new(ca_dn_cmp)) == NULL)
1458 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
1462 /* get the certificate types */
1464 if (ctype_num > SSL3_CT_NUMBER)
1465 ctype_num=SSL3_CT_NUMBER;
1466 for (i=0; i<ctype_num; i++)
1467 s->s3->tmp.ctype[i]= p[i];
1470 /* get the CA RDNs */
1475 out=fopen("/tmp/vsign.der","w");
1476 fwrite(p,1,llen,out);
1481 if ((llen+ctype_num+2+1) != n)
1483 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1484 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_LENGTH_MISMATCH);
1488 for (nc=0; nc<llen; )
1491 if ((l+nc+2) > llen)
1493 if ((s->options & SSL_OP_NETSCAPE_CA_DN_BUG))
1494 goto cont; /* netscape bugs */
1495 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1496 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_TOO_LONG);
1502 if ((xn=d2i_X509_NAME(NULL,&q,l)) == NULL)
1504 /* If netscape tolerance is on, ignore errors */
1505 if (s->options & SSL_OP_NETSCAPE_CA_DN_BUG)
1509 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1510 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_ASN1_LIB);
1517 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1518 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_LENGTH_MISMATCH);
1521 if (!sk_X509_NAME_push(ca_sk,xn))
1523 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
1537 /* we should setup a certificate to return.... */
1538 s->s3->tmp.cert_req=1;
1539 s->s3->tmp.ctype_num=ctype_num;
1540 if (s->s3->tmp.ca_names != NULL)
1541 sk_X509_NAME_pop_free(s->s3->tmp.ca_names,X509_NAME_free);
1542 s->s3->tmp.ca_names=ca_sk;
1547 if (ca_sk != NULL) sk_X509_NAME_pop_free(ca_sk,X509_NAME_free);
1551 static int ca_dn_cmp(const X509_NAME * const *a, const X509_NAME * const *b)
1553 return(X509_NAME_cmp(*a,*b));
1556 static int ssl3_get_server_done(SSL *s)
1561 n=ssl3_get_message(s,
1562 SSL3_ST_CR_SRVR_DONE_A,
1563 SSL3_ST_CR_SRVR_DONE_B,
1564 SSL3_MT_SERVER_DONE,
1565 30, /* should be very small, like 0 :-) */
1568 if (!ok) return((int)n);
1571 /* should contain no data */
1572 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1573 SSLerr(SSL_F_SSL3_GET_SERVER_DONE,SSL_R_LENGTH_MISMATCH);
1581 static const int KDF1_SHA1_len = 20;
1582 static void *KDF1_SHA1(void *in, size_t inlen, void *out, size_t outlen)
1584 #ifndef OPENSSL_NO_SHA
1585 if (outlen != SHA_DIGEST_LENGTH)
1587 return SHA1(in, inlen, out);
1593 static int ssl3_send_client_key_exchange(SSL *s)
1595 unsigned char *p,*d;
1598 #ifndef OPENSSL_NO_RSA
1600 EVP_PKEY *pkey=NULL;
1602 #ifndef OPENSSL_NO_KRB5
1604 #endif /* OPENSSL_NO_KRB5 */
1605 #ifndef OPENSSL_NO_ECDH
1606 EC_KEY *clnt_ecdh = NULL;
1607 EC_POINT *srvr_ecpoint = NULL;
1608 EVP_PKEY *srvr_pub_pkey = NULL;
1609 unsigned char *encodedPoint = NULL;
1610 int encoded_pt_len = 0;
1611 BN_CTX * bn_ctx = NULL;
1614 if (s->state == SSL3_ST_CW_KEY_EXCH_A)
1616 d=(unsigned char *)s->init_buf->data;
1619 l=s->s3->tmp.new_cipher->algorithms;
1621 /* Fool emacs indentation */
1623 #ifndef OPENSSL_NO_RSA
1624 else if (l & SSL_kRSA)
1627 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
1629 if (s->session->sess_cert->peer_rsa_tmp != NULL)
1630 rsa=s->session->sess_cert->peer_rsa_tmp;
1633 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1634 if ((pkey == NULL) ||
1635 (pkey->type != EVP_PKEY_RSA) ||
1636 (pkey->pkey.rsa == NULL))
1638 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1642 EVP_PKEY_free(pkey);
1645 tmp_buf[0]=s->client_version>>8;
1646 tmp_buf[1]=s->client_version&0xff;
1647 if (RAND_bytes(&(tmp_buf[2]),sizeof tmp_buf-2) <= 0)
1650 s->session->master_key_length=sizeof tmp_buf;
1653 /* Fix buf for TLS and beyond */
1654 if (s->version > SSL3_VERSION)
1656 n=RSA_public_encrypt(sizeof tmp_buf,
1657 tmp_buf,p,rsa,RSA_PKCS1_PADDING);
1659 if (s->options & SSL_OP_PKCS1_CHECK_1) p[1]++;
1660 if (s->options & SSL_OP_PKCS1_CHECK_2) tmp_buf[0]=0x70;
1664 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_BAD_RSA_ENCRYPT);
1668 /* Fix buf for TLS and beyond */
1669 if (s->version > SSL3_VERSION)
1675 s->session->master_key_length=
1676 s->method->ssl3_enc->generate_master_secret(s,
1677 s->session->master_key,
1678 tmp_buf,sizeof tmp_buf);
1679 OPENSSL_cleanse(tmp_buf,sizeof tmp_buf);
1682 #ifndef OPENSSL_NO_KRB5
1683 else if (l & SSL_kKRB5)
1685 krb5_error_code krb5rc;
1686 KSSL_CTX *kssl_ctx = s->kssl_ctx;
1687 /* krb5_data krb5_ap_req; */
1688 krb5_data *enc_ticket;
1689 krb5_data authenticator, *authp = NULL;
1690 EVP_CIPHER_CTX ciph_ctx;
1691 EVP_CIPHER *enc = NULL;
1692 unsigned char iv[EVP_MAX_IV_LENGTH];
1693 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
1694 unsigned char epms[SSL_MAX_MASTER_KEY_LENGTH
1695 + EVP_MAX_IV_LENGTH];
1696 int padl, outl = sizeof(epms);
1698 EVP_CIPHER_CTX_init(&ciph_ctx);
1701 printf("ssl3_send_client_key_exchange(%lx & %lx)\n",
1703 #endif /* KSSL_DEBUG */
1707 if (KRB5SENDAUTH) authp = &authenticator;
1708 #endif /* KRB5SENDAUTH */
1710 krb5rc = kssl_cget_tkt(kssl_ctx, &enc_ticket, authp,
1712 enc = kssl_map_enc(kssl_ctx->enctype);
1717 printf("kssl_cget_tkt rtn %d\n", krb5rc);
1718 if (krb5rc && kssl_err.text)
1719 printf("kssl_cget_tkt kssl_err=%s\n", kssl_err.text);
1721 #endif /* KSSL_DEBUG */
1725 ssl3_send_alert(s,SSL3_AL_FATAL,
1726 SSL_AD_HANDSHAKE_FAILURE);
1727 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1732 /* 20010406 VRS - Earlier versions used KRB5 AP_REQ
1733 ** in place of RFC 2712 KerberosWrapper, as in:
1735 ** Send ticket (copy to *p, set n = length)
1736 ** n = krb5_ap_req.length;
1737 ** memcpy(p, krb5_ap_req.data, krb5_ap_req.length);
1738 ** if (krb5_ap_req.data)
1739 ** kssl_krb5_free_data_contents(NULL,&krb5_ap_req);
1741 ** Now using real RFC 2712 KerberosWrapper
1742 ** (Thanks to Simon Wilkinson <sxw@sxw.org.uk>)
1743 ** Note: 2712 "opaque" types are here replaced
1744 ** with a 2-byte length followed by the value.
1746 ** KerberosWrapper= xx xx asn1ticket 0 0 xx xx encpms
1747 ** Where "xx xx" = length bytes. Shown here with
1748 ** optional authenticator omitted.
1751 /* KerberosWrapper.Ticket */
1752 s2n(enc_ticket->length,p);
1753 memcpy(p, enc_ticket->data, enc_ticket->length);
1754 p+= enc_ticket->length;
1755 n = enc_ticket->length + 2;
1757 /* KerberosWrapper.Authenticator */
1758 if (authp && authp->length)
1760 s2n(authp->length,p);
1761 memcpy(p, authp->data, authp->length);
1763 n+= authp->length + 2;
1771 s2n(0,p);/* null authenticator length */
1775 if (RAND_bytes(tmp_buf,sizeof tmp_buf) <= 0)
1778 /* 20010420 VRS. Tried it this way; failed.
1779 ** EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,NULL);
1780 ** EVP_CIPHER_CTX_set_key_length(&ciph_ctx,
1781 ** kssl_ctx->length);
1782 ** EVP_EncryptInit_ex(&ciph_ctx,NULL, key,iv);
1785 memset(iv, 0, sizeof iv); /* per RFC 1510 */
1786 EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,
1788 EVP_EncryptUpdate(&ciph_ctx,epms,&outl,tmp_buf,
1790 EVP_EncryptFinal_ex(&ciph_ctx,&(epms[outl]),&padl);
1792 if (outl > sizeof epms)
1794 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
1797 EVP_CIPHER_CTX_cleanup(&ciph_ctx);
1799 /* KerberosWrapper.EncryptedPreMasterSecret */
1801 memcpy(p, epms, outl);
1805 s->session->master_key_length=
1806 s->method->ssl3_enc->generate_master_secret(s,
1807 s->session->master_key,
1808 tmp_buf, sizeof tmp_buf);
1810 OPENSSL_cleanse(tmp_buf, sizeof tmp_buf);
1811 OPENSSL_cleanse(epms, outl);
1814 #ifndef OPENSSL_NO_DH
1815 else if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
1817 DH *dh_srvr,*dh_clnt;
1819 if (s->session->sess_cert->peer_dh_tmp != NULL)
1820 dh_srvr=s->session->sess_cert->peer_dh_tmp;
1823 /* we get them from the cert */
1824 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1825 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_DH_PARAMETERS);
1829 /* generate a new random key */
1830 if ((dh_clnt=DHparams_dup(dh_srvr)) == NULL)
1832 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1835 if (!DH_generate_key(dh_clnt))
1837 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1841 /* use the 'p' output buffer for the DH key, but
1842 * make sure to clear it out afterwards */
1844 n=DH_compute_key(p,dh_srvr->pub_key,dh_clnt);
1848 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1852 /* generate master key from the result */
1853 s->session->master_key_length=
1854 s->method->ssl3_enc->generate_master_secret(s,
1855 s->session->master_key,p,n);
1859 /* send off the data */
1860 n=BN_num_bytes(dh_clnt->pub_key);
1862 BN_bn2bin(dh_clnt->pub_key,p);
1867 /* perhaps clean things up a bit EAY EAY EAY EAY*/
1871 #ifndef OPENSSL_NO_ECDH
1872 else if ((l & SSL_kECDH) || (l & SSL_kECDHE))
1874 EC_GROUP *srvr_group = NULL;
1875 int ecdh_clnt_cert = 0;
1878 /* Did we send out the client's
1879 * ECDH share for use in premaster
1880 * computation as part of client certificate?
1881 * If so, set ecdh_clnt_cert to 1.
1883 if ((l & SSL_kECDH) && (s->cert != NULL))
1885 /* XXX: For now, we do not support client
1886 * authentication using ECDH certificates.
1887 * To add such support, one needs to add
1888 * code that checks for appropriate
1889 * conditions and sets ecdh_clnt_cert to 1.
1890 * For example, the cert have an ECC
1891 * key on the same curve as the server's
1892 * and the key should be authorized for
1895 * One also needs to add code in ssl3_connect
1896 * to skip sending the certificate verify
1899 * if ((s->cert->key->privatekey != NULL) &&
1900 * (s->cert->key->privatekey->type ==
1901 * EVP_PKEY_EC) && ...)
1902 * ecdh_clnt_cert = 1;
1906 if (s->session->sess_cert->peer_ecdh_tmp != NULL)
1908 srvr_group = s->session->sess_cert-> \
1909 peer_ecdh_tmp->group;
1910 srvr_ecpoint = s->session->sess_cert-> \
1911 peer_ecdh_tmp->pub_key;
1915 /* Get the Server Public Key from Cert */
1916 srvr_pub_pkey = X509_get_pubkey(s->session-> \
1917 sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
1918 if ((srvr_pub_pkey == NULL) ||
1919 (srvr_pub_pkey->type != EVP_PKEY_EC) ||
1920 (srvr_pub_pkey->pkey.eckey == NULL))
1922 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1923 ERR_R_INTERNAL_ERROR);
1927 srvr_group = srvr_pub_pkey->pkey.eckey->group;
1929 srvr_pub_pkey->pkey.eckey->pub_key;
1932 if ((srvr_group == NULL) || (srvr_ecpoint == NULL))
1934 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1935 ERR_R_INTERNAL_ERROR);
1939 if ((clnt_ecdh=EC_KEY_new()) == NULL)
1941 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1945 clnt_ecdh->group = srvr_group;
1948 /* Reuse key info from our certificate
1949 * We only need our private key to perform
1950 * the ECDH computation.
1952 clnt_ecdh->priv_key = BN_dup(s->cert->key-> \
1953 privatekey->pkey.eckey->priv_key);
1957 /* Generate a new ECDH key pair */
1958 if (!(EC_KEY_generate_key(clnt_ecdh)))
1960 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_ECDH_LIB);
1965 /* use the 'p' output buffer for the ECDH key, but
1966 * make sure to clear it out afterwards
1969 field_size = EC_GROUP_get_degree(clnt_ecdh->group);
1970 if (field_size <= 0)
1972 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1976 /* If field size is not more than 24 octets, then use SHA-1 hash of result;
1977 * otherwise, use result (see section 4.8 of draft-ietf-tls-ecc-03.txt;
1978 * this is new with this version of the Internet Draft).
1980 if (field_size <= 24 * 8)
1981 n=ECDH_compute_key(p, KDF1_SHA1_len, srvr_ecpoint, clnt_ecdh, KDF1_SHA1);
1983 n=ECDH_compute_key(p, (field_size+7)/8, srvr_ecpoint, clnt_ecdh, NULL);
1986 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1991 /* generate master key from the result */
1992 s->session->master_key_length = s->method->ssl3_enc \
1993 -> generate_master_secret(s,
1994 s->session->master_key,
1997 memset(p, 0, n); /* clean up */
2001 /* Send empty client key exch message */
2006 /* First check the size of encoding and
2007 * allocate memory accordingly.
2010 EC_POINT_point2oct(clnt_ecdh->group,
2012 POINT_CONVERSION_UNCOMPRESSED,
2015 encodedPoint = (unsigned char *)
2016 OPENSSL_malloc(encoded_pt_len *
2017 sizeof(unsigned char));
2018 bn_ctx = BN_CTX_new();
2019 if ((encodedPoint == NULL) ||
2022 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
2026 /* Encode the public key */
2027 n = EC_POINT_point2oct(clnt_ecdh->group,
2029 POINT_CONVERSION_UNCOMPRESSED,
2030 encodedPoint, encoded_pt_len, bn_ctx);
2032 *p = n; /* length of encoded point */
2033 /* Encoded point will be copied here */
2035 /* copy the point */
2036 memcpy((unsigned char *)p, encodedPoint, n);
2037 /* increment n to account for length field */
2041 /* Free allocated memory */
2042 BN_CTX_free(bn_ctx);
2043 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2044 if (clnt_ecdh != NULL)
2046 /* group is shared */
2047 clnt_ecdh->group = NULL;
2048 EC_KEY_free(clnt_ecdh);
2050 EVP_PKEY_free(srvr_pub_pkey);
2052 #endif /* !OPENSSL_NO_ECDH */
2055 ssl3_send_alert(s, SSL3_AL_FATAL,
2056 SSL_AD_HANDSHAKE_FAILURE);
2057 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2058 ERR_R_INTERNAL_ERROR);
2062 *(d++)=SSL3_MT_CLIENT_KEY_EXCHANGE;
2065 s->state=SSL3_ST_CW_KEY_EXCH_B;
2066 /* number of bytes to write */
2071 /* SSL3_ST_CW_KEY_EXCH_B */
2072 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2074 #ifndef OPENSSL_NO_ECDH
2075 BN_CTX_free(bn_ctx);
2076 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2077 if (clnt_ecdh != NULL)
2079 /* group is shared */
2080 clnt_ecdh->group = NULL;
2081 EC_KEY_free(clnt_ecdh);
2083 EVP_PKEY_free(srvr_pub_pkey);
2088 static int ssl3_send_client_verify(SSL *s)
2090 unsigned char *p,*d;
2091 unsigned char data[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];
2093 #ifndef OPENSSL_NO_RSA
2097 #ifndef OPENSSL_NO_DSA
2101 if (s->state == SSL3_ST_CW_CERT_VRFY_A)
2103 d=(unsigned char *)s->init_buf->data;
2105 pkey=s->cert->key->privatekey;
2107 s->method->ssl3_enc->cert_verify_mac(s,&(s->s3->finish_dgst2),
2108 &(data[MD5_DIGEST_LENGTH]));
2110 #ifndef OPENSSL_NO_RSA
2111 if (pkey->type == EVP_PKEY_RSA)
2113 s->method->ssl3_enc->cert_verify_mac(s,
2114 &(s->s3->finish_dgst1),&(data[0]));
2115 if (RSA_sign(NID_md5_sha1, data,
2116 MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH,
2117 &(p[2]), &u, pkey->pkey.rsa) <= 0 )
2119 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_RSA_LIB);
2127 #ifndef OPENSSL_NO_DSA
2128 if (pkey->type == EVP_PKEY_DSA)
2130 if (!DSA_sign(pkey->save_type,
2131 &(data[MD5_DIGEST_LENGTH]),
2132 SHA_DIGEST_LENGTH,&(p[2]),
2133 (unsigned int *)&j,pkey->pkey.dsa))
2135 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_DSA_LIB);
2143 #ifndef OPENSSL_NO_ECDSA
2144 if (pkey->type == EVP_PKEY_EC)
2146 if (!ECDSA_sign(pkey->save_type,
2147 &(data[MD5_DIGEST_LENGTH]),
2148 SHA_DIGEST_LENGTH,&(p[2]),
2149 (unsigned int *)&j,pkey->pkey.eckey))
2151 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,
2161 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_INTERNAL_ERROR);
2164 *(d++)=SSL3_MT_CERTIFICATE_VERIFY;
2167 s->state=SSL3_ST_CW_CERT_VRFY_B;
2168 s->init_num=(int)n+4;
2171 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2176 static int ssl3_send_client_certificate(SSL *s)
2179 EVP_PKEY *pkey=NULL;
2183 if (s->state == SSL3_ST_CW_CERT_A)
2185 if ((s->cert == NULL) ||
2186 (s->cert->key->x509 == NULL) ||
2187 (s->cert->key->privatekey == NULL))
2188 s->state=SSL3_ST_CW_CERT_B;
2190 s->state=SSL3_ST_CW_CERT_C;
2193 /* We need to get a client cert */
2194 if (s->state == SSL3_ST_CW_CERT_B)
2196 /* If we get an error, we need to
2197 * ssl->rwstate=SSL_X509_LOOKUP; return(-1);
2198 * We then get retied later */
2200 if (s->ctx->client_cert_cb != NULL)
2201 i=s->ctx->client_cert_cb(s,&(x509),&(pkey));
2204 s->rwstate=SSL_X509_LOOKUP;
2207 s->rwstate=SSL_NOTHING;
2208 if ((i == 1) && (pkey != NULL) && (x509 != NULL))
2210 s->state=SSL3_ST_CW_CERT_B;
2211 if ( !SSL_use_certificate(s,x509) ||
2212 !SSL_use_PrivateKey(s,pkey))
2218 SSLerr(SSL_F_SSL3_SEND_CLIENT_CERTIFICATE,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK);
2221 if (x509 != NULL) X509_free(x509);
2222 if (pkey != NULL) EVP_PKEY_free(pkey);
2225 if (s->version == SSL3_VERSION)
2227 s->s3->tmp.cert_req=0;
2228 ssl3_send_alert(s,SSL3_AL_WARNING,SSL_AD_NO_CERTIFICATE);
2233 s->s3->tmp.cert_req=2;
2237 /* Ok, we have a cert */
2238 s->state=SSL3_ST_CW_CERT_C;
2241 if (s->state == SSL3_ST_CW_CERT_C)
2243 s->state=SSL3_ST_CW_CERT_D;
2244 l=ssl3_output_cert_chain(s,
2245 (s->s3->tmp.cert_req == 2)?NULL:s->cert->key->x509);
2249 /* SSL3_ST_CW_CERT_D */
2250 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2253 #define has_bits(i,m) (((i)&(m)) == (m))
2255 static int ssl3_check_cert_and_algorithm(SSL *s)
2259 EVP_PKEY *pkey=NULL;
2261 #ifndef OPENSSL_NO_RSA
2264 #ifndef OPENSSL_NO_DH
2268 sc=s->session->sess_cert;
2272 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,ERR_R_INTERNAL_ERROR);
2276 algs=s->s3->tmp.new_cipher->algorithms;
2278 /* we don't have a certificate */
2279 if (algs & (SSL_aDH|SSL_aNULL|SSL_aKRB5))
2282 #ifndef OPENSSL_NO_RSA
2283 rsa=s->session->sess_cert->peer_rsa_tmp;
2285 #ifndef OPENSSL_NO_DH
2286 dh=s->session->sess_cert->peer_dh_tmp;
2289 /* This is the passed certificate */
2291 idx=sc->peer_cert_type;
2292 #ifndef OPENSSL_NO_ECDH
2293 if (idx == SSL_PKEY_ECC)
2295 if (check_srvr_ecc_cert_and_alg(sc->peer_pkeys[idx].x509,
2296 s->s3->tmp.new_cipher) == 0)
2297 { /* check failed */
2298 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_BAD_ECC_CERT);
2307 pkey=X509_get_pubkey(sc->peer_pkeys[idx].x509);
2308 i=X509_certificate_type(sc->peer_pkeys[idx].x509,pkey);
2309 EVP_PKEY_free(pkey);
2312 /* Check that we have a certificate if we require one */
2313 if ((algs & SSL_aRSA) && !has_bits(i,EVP_PK_RSA|EVP_PKT_SIGN))
2315 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_SIGNING_CERT);
2318 #ifndef OPENSSL_NO_DSA
2319 else if ((algs & SSL_aDSS) && !has_bits(i,EVP_PK_DSA|EVP_PKT_SIGN))
2321 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DSA_SIGNING_CERT);
2325 #ifndef OPENSSL_NO_RSA
2326 if ((algs & SSL_kRSA) &&
2327 !(has_bits(i,EVP_PK_RSA|EVP_PKT_ENC) || (rsa != NULL)))
2329 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_ENCRYPTING_CERT);
2333 #ifndef OPENSSL_NO_DH
2334 if ((algs & SSL_kEDH) &&
2335 !(has_bits(i,EVP_PK_DH|EVP_PKT_EXCH) || (dh != NULL)))
2337 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_KEY);
2340 else if ((algs & SSL_kDHr) && !has_bits(i,EVP_PK_DH|EVP_PKS_RSA))
2342 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_RSA_CERT);
2345 #ifndef OPENSSL_NO_DSA
2346 else if ((algs & SSL_kDHd) && !has_bits(i,EVP_PK_DH|EVP_PKS_DSA))
2348 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_DSA_CERT);
2354 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) && !has_bits(i,EVP_PKT_EXP))
2356 #ifndef OPENSSL_NO_RSA
2357 if (algs & SSL_kRSA)
2360 || RSA_size(rsa)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2362 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_RSA_KEY);
2368 #ifndef OPENSSL_NO_DH
2369 if (algs & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
2372 || DH_size(dh)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2374 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_DH_KEY);
2381 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);
2387 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
2393 #ifndef OPENSSL_NO_ECDH
2394 /* This is the complement of nid2curve_id in s3_srvr.c. */
2395 static int curve_id2nid(int curve_id)
2397 /* ECC curves from draft-ietf-tls-ecc-01.txt (Mar 15, 2001)
2398 * (no changes in draft-ietf-tls-ecc-03.txt [June 2003]) */
2399 static int nid_list[26] =
2402 NID_sect163k1, /* sect163k1 (1) */
2403 NID_sect163r1, /* sect163r1 (2) */
2404 NID_sect163r2, /* sect163r2 (3) */
2405 NID_sect193r1, /* sect193r1 (4) */
2406 NID_sect193r2, /* sect193r2 (5) */
2407 NID_sect233k1, /* sect233k1 (6) */
2408 NID_sect233r1, /* sect233r1 (7) */
2409 NID_sect239k1, /* sect239k1 (8) */
2410 NID_sect283k1, /* sect283k1 (9) */
2411 NID_sect283r1, /* sect283r1 (10) */
2412 NID_sect409k1, /* sect409k1 (11) */
2413 NID_sect409r1, /* sect409r1 (12) */
2414 NID_sect571k1, /* sect571k1 (13) */
2415 NID_sect571r1, /* sect571r1 (14) */
2416 NID_secp160k1, /* secp160k1 (15) */
2417 NID_secp160r1, /* secp160r1 (16) */
2418 NID_secp160r2, /* secp160r2 (17) */
2419 NID_secp192k1, /* secp192k1 (18) */
2420 NID_X9_62_prime192v1, /* secp192r1 (19) */
2421 NID_secp224k1, /* secp224k1 (20) */
2422 NID_secp224r1, /* secp224r1 (21) */
2423 NID_secp256k1, /* secp256k1 (22) */
2424 NID_X9_62_prime256v1, /* secp256r1 (23) */
2425 NID_secp384r1, /* secp384r1 (24) */
2426 NID_secp521r1 /* secp521r1 (25) */
2429 if ((curve_id < 1) || (curve_id > 25)) return 0;
2431 return nid_list[curve_id];