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>
135 static SSL_METHOD *ssl3_get_client_method(int ver);
136 static int ssl3_client_hello(SSL *s);
137 static int ssl3_get_server_hello(SSL *s);
138 static int ssl3_get_certificate_request(SSL *s);
139 static int ca_dn_cmp(const X509_NAME * const *a,const X509_NAME * const *b);
140 static int ssl3_get_server_done(SSL *s);
141 static int ssl3_send_client_verify(SSL *s);
142 static int ssl3_send_client_certificate(SSL *s);
143 static int ssl3_send_client_key_exchange(SSL *s);
144 static int ssl3_get_key_exchange(SSL *s);
145 static int ssl3_get_server_certificate(SSL *s);
146 static int ssl3_check_cert_and_algorithm(SSL *s);
148 #ifndef OPENSSL_NO_ECDH
149 static int curve_id2nid(int curve_id);
150 int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs);
153 static SSL_METHOD *ssl3_get_client_method(int ver)
155 if (ver == SSL3_VERSION)
156 return(SSLv3_client_method());
161 SSL_METHOD *SSLv3_client_method(void)
164 static SSL_METHOD SSLv3_client_data;
168 CRYPTO_w_lock(CRYPTO_LOCK_SSL_METHOD);
172 memcpy((char *)&SSLv3_client_data,(char *)sslv3_base_method(),
174 SSLv3_client_data.ssl_connect=ssl3_connect;
175 SSLv3_client_data.get_ssl_method=ssl3_get_client_method;
179 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_METHOD);
181 return(&SSLv3_client_data);
184 int ssl3_connect(SSL *s)
187 unsigned long Time=time(NULL),l;
189 void (*cb)(const SSL *ssl,int type,int val)=NULL;
191 int new_state,state,skip=0;;
193 RAND_add(&Time,sizeof(Time),0);
197 if (s->info_callback != NULL)
199 else if (s->ctx->info_callback != NULL)
200 cb=s->ctx->info_callback;
203 if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
211 case SSL_ST_RENEGOTIATE:
213 s->state=SSL_ST_CONNECT;
214 s->ctx->stats.sess_connect_renegotiate++;
218 case SSL_ST_BEFORE|SSL_ST_CONNECT:
219 case SSL_ST_OK|SSL_ST_CONNECT:
222 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
224 if ((s->version & 0xff00 ) != 0x0300)
226 SSLerr(SSL_F_SSL3_CONNECT, ERR_R_INTERNAL_ERROR);
231 /* s->version=SSL3_VERSION; */
232 s->type=SSL_ST_CONNECT;
234 if (s->init_buf == NULL)
236 if ((buf=BUF_MEM_new()) == NULL)
241 if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))
250 if (!ssl3_setup_buffers(s)) { ret= -1; goto end; }
252 /* setup buffing BIO */
253 if (!ssl_init_wbio_buffer(s,0)) { ret= -1; goto end; }
255 /* don't push the buffering BIO quite yet */
257 ssl3_init_finished_mac(s);
259 s->state=SSL3_ST_CW_CLNT_HELLO_A;
260 s->ctx->stats.sess_connect++;
264 case SSL3_ST_CW_CLNT_HELLO_A:
265 case SSL3_ST_CW_CLNT_HELLO_B:
268 ret=ssl3_client_hello(s);
269 if (ret <= 0) goto end;
270 s->state=SSL3_ST_CR_SRVR_HELLO_A;
273 /* turn on buffering for the next lot of output */
274 if (s->bbio != s->wbio)
275 s->wbio=BIO_push(s->bbio,s->wbio);
279 case SSL3_ST_CR_SRVR_HELLO_A:
280 case SSL3_ST_CR_SRVR_HELLO_B:
281 ret=ssl3_get_server_hello(s);
282 if (ret <= 0) goto end;
284 s->state=SSL3_ST_CR_FINISHED_A;
286 s->state=SSL3_ST_CR_CERT_A;
290 case SSL3_ST_CR_CERT_A:
291 case SSL3_ST_CR_CERT_B:
292 /* Check if it is anon DH/ECDH */
293 if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
295 ret=ssl3_get_server_certificate(s);
296 if (ret <= 0) goto end;
300 s->state=SSL3_ST_CR_KEY_EXCH_A;
304 case SSL3_ST_CR_KEY_EXCH_A:
305 case SSL3_ST_CR_KEY_EXCH_B:
306 ret=ssl3_get_key_exchange(s);
307 if (ret <= 0) goto end;
308 s->state=SSL3_ST_CR_CERT_REQ_A;
311 /* at this point we check that we have the
312 * required stuff from the server */
313 if (!ssl3_check_cert_and_algorithm(s))
320 case SSL3_ST_CR_CERT_REQ_A:
321 case SSL3_ST_CR_CERT_REQ_B:
322 ret=ssl3_get_certificate_request(s);
323 if (ret <= 0) goto end;
324 s->state=SSL3_ST_CR_SRVR_DONE_A;
328 case SSL3_ST_CR_SRVR_DONE_A:
329 case SSL3_ST_CR_SRVR_DONE_B:
330 ret=ssl3_get_server_done(s);
331 if (ret <= 0) goto end;
332 if (s->s3->tmp.cert_req)
333 s->state=SSL3_ST_CW_CERT_A;
335 s->state=SSL3_ST_CW_KEY_EXCH_A;
340 case SSL3_ST_CW_CERT_A:
341 case SSL3_ST_CW_CERT_B:
342 case SSL3_ST_CW_CERT_C:
343 case SSL3_ST_CW_CERT_D:
344 ret=ssl3_send_client_certificate(s);
345 if (ret <= 0) goto end;
346 s->state=SSL3_ST_CW_KEY_EXCH_A;
350 case SSL3_ST_CW_KEY_EXCH_A:
351 case SSL3_ST_CW_KEY_EXCH_B:
352 ret=ssl3_send_client_key_exchange(s);
353 if (ret <= 0) goto end;
354 l=s->s3->tmp.new_cipher->algorithms;
355 /* EAY EAY EAY need to check for DH fix cert
357 /* For TLS, cert_req is set to 2, so a cert chain
358 * of nothing is sent, but no verify packet is sent */
359 /* XXX: For now, we do not support client
360 * authentication in ECDH cipher suites with
361 * ECDH (rather than ECDSA) certificates.
362 * We need to skip the certificate verify
363 * message when client's ECDH public key is sent
364 * inside the client certificate.
366 if (s->s3->tmp.cert_req == 1)
368 s->state=SSL3_ST_CW_CERT_VRFY_A;
372 s->state=SSL3_ST_CW_CHANGE_A;
373 s->s3->change_cipher_spec=0;
379 case SSL3_ST_CW_CERT_VRFY_A:
380 case SSL3_ST_CW_CERT_VRFY_B:
381 ret=ssl3_send_client_verify(s);
382 if (ret <= 0) goto end;
383 s->state=SSL3_ST_CW_CHANGE_A;
385 s->s3->change_cipher_spec=0;
388 case SSL3_ST_CW_CHANGE_A:
389 case SSL3_ST_CW_CHANGE_B:
390 ret=ssl3_send_change_cipher_spec(s,
391 SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B);
392 if (ret <= 0) goto end;
393 s->state=SSL3_ST_CW_FINISHED_A;
396 s->session->cipher=s->s3->tmp.new_cipher;
397 if (s->s3->tmp.new_compression == NULL)
398 s->session->compress_meth=0;
400 s->session->compress_meth=
401 s->s3->tmp.new_compression->id;
402 if (!s->method->ssl3_enc->setup_key_block(s))
408 if (!s->method->ssl3_enc->change_cipher_state(s,
409 SSL3_CHANGE_CIPHER_CLIENT_WRITE))
417 case SSL3_ST_CW_FINISHED_A:
418 case SSL3_ST_CW_FINISHED_B:
419 ret=ssl3_send_finished(s,
420 SSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B,
421 s->method->ssl3_enc->client_finished_label,
422 s->method->ssl3_enc->client_finished_label_len);
423 if (ret <= 0) goto end;
424 s->state=SSL3_ST_CW_FLUSH;
427 s->s3->flags&= ~SSL3_FLAGS_POP_BUFFER;
430 s->s3->tmp.next_state=SSL_ST_OK;
431 if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED)
434 s->s3->flags|=SSL3_FLAGS_POP_BUFFER;
435 s->s3->delay_buf_pop_ret=0;
440 s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A;
445 case SSL3_ST_CR_FINISHED_A:
446 case SSL3_ST_CR_FINISHED_B:
448 ret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A,
449 SSL3_ST_CR_FINISHED_B);
450 if (ret <= 0) goto end;
453 s->state=SSL3_ST_CW_CHANGE_A;
459 case SSL3_ST_CW_FLUSH:
460 /* number of bytes to be flushed */
461 num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);
464 s->rwstate=SSL_WRITING;
465 num1=BIO_flush(s->wbio);
466 if (num1 <= 0) { ret= -1; goto end; }
467 s->rwstate=SSL_NOTHING;
470 s->state=s->s3->tmp.next_state;
474 /* clean a few things up */
475 ssl3_cleanup_key_block(s);
477 if (s->init_buf != NULL)
479 BUF_MEM_free(s->init_buf);
483 /* If we are not 'joining' the last two packets,
484 * remove the buffering now */
485 if (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER))
486 ssl_free_wbio_buffer(s);
487 /* else do it later in ssl3_write */
492 ssl_update_cache(s,SSL_SESS_CACHE_CLIENT);
493 if (s->hit) s->ctx->stats.sess_hit++;
497 s->handshake_func=ssl3_connect;
498 s->ctx->stats.sess_connect_good++;
500 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);
506 SSLerr(SSL_F_SSL3_CONNECT,SSL_R_UNKNOWN_STATE);
512 /* did we do anything */
513 if (!s->s3->tmp.reuse_message && !skip)
517 if ((ret=BIO_flush(s->wbio)) <= 0)
521 if ((cb != NULL) && (s->state != state))
525 cb(s,SSL_CB_CONNECT_LOOP,1);
536 cb(s,SSL_CB_CONNECT_EXIT,ret);
541 static int ssl3_client_hello(SSL *s)
546 unsigned long Time,l;
549 buf=(unsigned char *)s->init_buf->data;
550 if (s->state == SSL3_ST_CW_CLNT_HELLO_A)
552 if ((s->session == NULL) ||
553 (s->session->ssl_version != s->version) ||
554 (s->session->not_resumable))
556 if (!ssl_get_new_session(s,0))
559 /* else use the pre-loaded session */
561 p=s->s3->client_random;
562 Time=time(NULL); /* Time */
564 RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-sizeof(Time));
566 /* Do the message type and length last */
569 *(p++)=s->version>>8;
570 *(p++)=s->version&0xff;
571 s->client_version=s->version;
574 memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
581 i=s->session->session_id_length;
585 if (i > (int)sizeof(s->session->session_id))
587 SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
590 memcpy(p,s->session->session_id,i);
594 /* Ciphers supported */
595 i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]));
598 SSLerr(SSL_F_SSL3_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
605 if (s->ctx->comp_methods == NULL)
608 j=sk_SSL_COMP_num(s->ctx->comp_methods);
612 comp=sk_SSL_COMP_value(s->ctx->comp_methods,i);
615 *(p++)=0; /* Add the NULL method */
619 *(d++)=SSL3_MT_CLIENT_HELLO;
622 s->state=SSL3_ST_CW_CLNT_HELLO_B;
623 /* number of bytes to write */
628 /* SSL3_ST_CW_CLNT_HELLO_B */
629 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
634 static int ssl3_get_server_hello(SSL *s)
636 STACK_OF(SSL_CIPHER) *sk;
644 n=ssl3_get_message(s,
645 SSL3_ST_CR_SRVR_HELLO_A,
646 SSL3_ST_CR_SRVR_HELLO_B,
647 SSL3_MT_SERVER_HELLO,
651 if (!ok) return((int)n);
652 d=p=(unsigned char *)s->init_msg;
654 if ((p[0] != (s->version>>8)) || (p[1] != (s->version&0xff)))
656 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_SSL_VERSION);
657 s->version=(s->version&0xff00)|p[1];
658 al=SSL_AD_PROTOCOL_VERSION;
663 /* load the server hello data */
664 /* load the server random */
665 memcpy(s->s3->server_random,p,SSL3_RANDOM_SIZE);
668 /* get the session-id */
671 if ((j > sizeof s->session->session_id) || (j > SSL3_SESSION_ID_SIZE))
673 al=SSL_AD_ILLEGAL_PARAMETER;
674 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SSL3_SESSION_ID_TOO_LONG);
678 if (j != 0 && j == s->session->session_id_length
679 && memcmp(p,s->session->session_id,j) == 0)
681 if(s->sid_ctx_length != s->session->sid_ctx_length
682 || memcmp(s->session->sid_ctx,s->sid_ctx,s->sid_ctx_length))
684 /* actually a client application bug */
685 al=SSL_AD_ILLEGAL_PARAMETER;
686 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);
691 else /* a miss or crap from the other end */
693 /* If we were trying for session-id reuse, make a new
694 * SSL_SESSION so we don't stuff up other people */
696 if (s->session->session_id_length > 0)
698 if (!ssl_get_new_session(s,0))
700 al=SSL_AD_INTERNAL_ERROR;
704 s->session->session_id_length=j;
705 memcpy(s->session->session_id,p,j); /* j could be 0 */
708 c=ssl_get_cipher_by_char(s,p);
712 al=SSL_AD_ILLEGAL_PARAMETER;
713 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNKNOWN_CIPHER_RETURNED);
716 p+=ssl_put_cipher_by_char(s,NULL,NULL);
718 sk=ssl_get_ciphers_by_id(s);
719 i=sk_SSL_CIPHER_find(sk,c);
722 /* we did not say we would use this cipher */
723 al=SSL_AD_ILLEGAL_PARAMETER;
724 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_CIPHER_RETURNED);
728 /* Depending on the session caching (internal/external), the cipher
729 and/or cipher_id values may not be set. Make sure that
730 cipher_id is set and use it for comparison. */
731 if (s->session->cipher)
732 s->session->cipher_id = s->session->cipher->id;
733 if (s->hit && (s->session->cipher_id != c->id))
736 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG))
738 al=SSL_AD_ILLEGAL_PARAMETER;
739 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED);
743 s->s3->tmp.new_cipher=c;
745 /* lets get the compression algorithm */
751 comp=ssl3_comp_find(s->ctx->comp_methods,j);
753 if ((j != 0) && (comp == NULL))
755 al=SSL_AD_ILLEGAL_PARAMETER;
756 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
761 s->s3->tmp.new_compression=comp;
766 /* wrong packet length */
767 al=SSL_AD_DECODE_ERROR;
768 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_PACKET_LENGTH);
774 ssl3_send_alert(s,SSL3_AL_FATAL,al);
779 static int ssl3_get_server_certificate(SSL *s)
782 unsigned long n,nc,llen,l;
784 const unsigned char *q,*p;
786 STACK_OF(X509) *sk=NULL;
789 int need_cert = 1; /* VRS: 0=> will allow null cert if auth == KRB5 */
791 n=ssl3_get_message(s,
798 if (!ok) return((int)n);
800 if (s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE)
802 s->s3->tmp.reuse_message=1;
806 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE)
808 al=SSL_AD_UNEXPECTED_MESSAGE;
809 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_BAD_MESSAGE_TYPE);
812 p=d=(unsigned char *)s->init_msg;
814 if ((sk=sk_X509_new_null()) == NULL)
816 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
823 al=SSL_AD_DECODE_ERROR;
824 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_LENGTH_MISMATCH);
827 for (nc=0; nc<llen; )
832 al=SSL_AD_DECODE_ERROR;
833 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
838 x=d2i_X509(NULL,&q,l);
841 al=SSL_AD_BAD_CERTIFICATE;
842 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_ASN1_LIB);
847 al=SSL_AD_DECODE_ERROR;
848 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
851 if (!sk_X509_push(sk,x))
853 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
861 i=ssl_verify_cert_chain(s,sk);
862 if ((s->verify_mode != SSL_VERIFY_NONE) && (!i)
863 #ifndef OPENSSL_NO_KRB5
864 && (s->s3->tmp.new_cipher->algorithms & (SSL_MKEY_MASK|SSL_AUTH_MASK))
865 != (SSL_aKRB5|SSL_kKRB5)
866 #endif /* OPENSSL_NO_KRB5 */
869 al=ssl_verify_alarm_type(s->verify_result);
870 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED);
873 ERR_clear_error(); /* but we keep s->verify_result */
875 sc=ssl_sess_cert_new();
876 if (sc == NULL) goto err;
878 if (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert);
879 s->session->sess_cert=sc;
882 /* Inconsistency alert: cert_chain does include the peer's
883 * certificate, which we don't include in s3_srvr.c */
884 x=sk_X509_value(sk,0);
886 /* VRS 19990621: possible memory leak; sk=null ==> !sk_pop_free() @end*/
888 pkey=X509_get_pubkey(x);
890 /* VRS: allow null cert if auth == KRB5 */
891 need_cert = ((s->s3->tmp.new_cipher->algorithms
892 & (SSL_MKEY_MASK|SSL_AUTH_MASK))
893 == (SSL_aKRB5|SSL_kKRB5))? 0: 1;
896 printf("pkey,x = %p, %p\n", pkey,x);
897 printf("ssl_cert_type(x,pkey) = %d\n", ssl_cert_type(x,pkey));
898 printf("cipher, alg, nc = %s, %lx, %d\n", s->s3->tmp.new_cipher->name,
899 s->s3->tmp.new_cipher->algorithms, need_cert);
900 #endif /* KSSL_DEBUG */
902 if (need_cert && ((pkey == NULL) || EVP_PKEY_missing_parameters(pkey)))
906 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
907 SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS);
911 i=ssl_cert_type(x,pkey);
912 if (need_cert && i < 0)
916 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
917 SSL_R_UNKNOWN_CERTIFICATE_TYPE);
923 sc->peer_cert_type=i;
924 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
925 /* Why would the following ever happen?
926 * We just created sc a couple of lines ago. */
927 if (sc->peer_pkeys[i].x509 != NULL)
928 X509_free(sc->peer_pkeys[i].x509);
929 sc->peer_pkeys[i].x509=x;
930 sc->peer_key= &(sc->peer_pkeys[i]);
932 if (s->session->peer != NULL)
933 X509_free(s->session->peer);
934 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
939 sc->peer_cert_type=i;
942 if (s->session->peer != NULL)
943 X509_free(s->session->peer);
944 s->session->peer=NULL;
946 s->session->verify_result = s->verify_result;
954 ssl3_send_alert(s,SSL3_AL_FATAL,al);
959 sk_X509_pop_free(sk,X509_free);
963 static int ssl3_get_key_exchange(SSL *s)
965 #ifndef OPENSSL_NO_RSA
966 unsigned char *q,md_buf[EVP_MAX_MD_SIZE*2];
969 unsigned char *param,*p;
970 int al,i,j,param_len,ok;
973 #ifndef OPENSSL_NO_RSA
976 #ifndef OPENSSL_NO_DH
979 #ifndef OPENSSL_NO_ECDH
981 BN_CTX *bn_ctx = NULL;
982 EC_POINT *srvr_ecpoint = NULL;
984 int encoded_pt_len = 0;
987 /* use same message size as in ssl3_get_certificate_request()
988 * as ServerKeyExchange message may be skipped */
989 n=ssl3_get_message(s,
990 SSL3_ST_CR_KEY_EXCH_A,
991 SSL3_ST_CR_KEY_EXCH_B,
996 if (!ok) return((int)n);
998 if (s->s3->tmp.message_type != SSL3_MT_SERVER_KEY_EXCHANGE)
1000 s->s3->tmp.reuse_message=1;
1004 param=p=(unsigned char *)s->init_msg;
1006 if (s->session->sess_cert != NULL)
1008 #ifndef OPENSSL_NO_RSA
1009 if (s->session->sess_cert->peer_rsa_tmp != NULL)
1011 RSA_free(s->session->sess_cert->peer_rsa_tmp);
1012 s->session->sess_cert->peer_rsa_tmp=NULL;
1015 #ifndef OPENSSL_NO_DH
1016 if (s->session->sess_cert->peer_dh_tmp)
1018 DH_free(s->session->sess_cert->peer_dh_tmp);
1019 s->session->sess_cert->peer_dh_tmp=NULL;
1022 #ifndef OPENSSL_NO_ECDH
1023 if (s->session->sess_cert->peer_ecdh_tmp)
1025 EC_KEY_free(s->session->sess_cert->peer_ecdh_tmp);
1026 s->session->sess_cert->peer_ecdh_tmp=NULL;
1032 s->session->sess_cert=ssl_sess_cert_new();
1036 alg=s->s3->tmp.new_cipher->algorithms;
1037 EVP_MD_CTX_init(&md_ctx);
1039 #ifndef OPENSSL_NO_RSA
1042 if ((rsa=RSA_new()) == NULL)
1044 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1051 al=SSL_AD_DECODE_ERROR;
1052 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_MODULUS_LENGTH);
1055 if (!(rsa->n=BN_bin2bn(p,i,rsa->n)))
1057 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1066 al=SSL_AD_DECODE_ERROR;
1067 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_E_LENGTH);
1070 if (!(rsa->e=BN_bin2bn(p,i,rsa->e)))
1072 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1078 /* this should be because we are using an export cipher */
1080 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1083 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1086 s->session->sess_cert->peer_rsa_tmp=rsa;
1089 #else /* OPENSSL_NO_RSA */
1093 #ifndef OPENSSL_NO_DH
1094 else if (alg & SSL_kEDH)
1096 if ((dh=DH_new()) == NULL)
1098 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_DH_LIB);
1105 al=SSL_AD_DECODE_ERROR;
1106 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_P_LENGTH);
1109 if (!(dh->p=BN_bin2bn(p,i,NULL)))
1111 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1120 al=SSL_AD_DECODE_ERROR;
1121 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_G_LENGTH);
1124 if (!(dh->g=BN_bin2bn(p,i,NULL)))
1126 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1135 al=SSL_AD_DECODE_ERROR;
1136 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_PUB_KEY_LENGTH);
1139 if (!(dh->pub_key=BN_bin2bn(p,i,NULL)))
1141 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1147 #ifndef OPENSSL_NO_RSA
1149 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1154 #ifndef OPENSSL_NO_DSA
1155 else if (alg & SSL_aDSS)
1156 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].x509);
1158 /* else anonymous DH, so no certificate or pkey. */
1160 s->session->sess_cert->peer_dh_tmp=dh;
1163 else if ((alg & SSL_kDHr) || (alg & SSL_kDHd))
1165 al=SSL_AD_ILLEGAL_PARAMETER;
1166 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
1169 #endif /* !OPENSSL_NO_DH */
1171 #ifndef OPENSSL_NO_ECDH
1172 else if (alg & SSL_kECDHE)
1174 if ((ecdh=EC_KEY_new()) == NULL)
1176 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1180 /* Extract elliptic curve parameters and the
1181 * server's ephemeral ECDH public key.
1182 * Keep accumulating lengths of various components in
1183 * param_len and make sure it never exceeds n.
1186 /* XXX: For now we only support named (not generic) curves
1187 * and the ECParameters in this case is just two bytes.
1190 if ((param_len > n) ||
1191 (*p != NAMED_CURVE_TYPE) ||
1192 ((curve_nid = curve_id2nid(*(p + 1))) == 0))
1194 al=SSL_AD_INTERNAL_ERROR;
1195 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS);
1199 if (!(ecdh->group=EC_GROUP_new_by_nid(curve_nid)))
1201 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
1205 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
1206 (EC_GROUP_get_degree(ecdh->group) > 163))
1208 al=SSL_AD_EXPORT_RESTRICTION;
1209 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
1215 /* Next, get the encoded ECPoint */
1216 if (((srvr_ecpoint = EC_POINT_new(ecdh->group)) == NULL) ||
1217 ((bn_ctx = BN_CTX_new()) == NULL))
1219 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1223 encoded_pt_len = *p; /* length of encoded point */
1225 param_len += (1 + encoded_pt_len);
1226 if ((param_len > n) ||
1227 (EC_POINT_oct2point(ecdh->group, srvr_ecpoint,
1228 p, encoded_pt_len, bn_ctx) == 0))
1230 al=SSL_AD_DECODE_ERROR;
1231 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_ECPOINT);
1238 /* The ECC/TLS specification does not mention
1239 * the use of DSA to sign ECParameters in the server
1240 * key exchange message. We do support RSA and ECDSA.
1243 #ifndef OPENSSL_NO_RSA
1244 else if (alg & SSL_aRSA)
1245 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1247 #ifndef OPENSSL_NO_ECDSA
1248 else if (alg & SSL_aECDSA)
1249 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
1251 /* else anonymous ECDH, so no certificate or pkey. */
1252 ecdh->pub_key = srvr_ecpoint;
1253 s->session->sess_cert->peer_ecdh_tmp=ecdh;
1255 BN_CTX_free(bn_ctx);
1256 srvr_ecpoint = NULL;
1258 else if (alg & SSL_kECDH)
1260 al=SSL_AD_UNEXPECTED_MESSAGE;
1261 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNEXPECTED_MESSAGE);
1264 #endif /* !OPENSSL_NO_ECDH */
1267 al=SSL_AD_HANDSHAKE_FAILURE;
1268 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
1273 /* p points to the next byte, there are 'n' bytes left */
1275 /* if it was signed, check the signature */
1280 j=EVP_PKEY_size(pkey);
1282 if ((i != n) || (n > j) || (n <= 0))
1284 /* wrong packet length */
1285 al=SSL_AD_DECODE_ERROR;
1286 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_WRONG_SIGNATURE_LENGTH);
1290 #ifndef OPENSSL_NO_RSA
1291 if (pkey->type == EVP_PKEY_RSA)
1297 for (num=2; num > 0; num--)
1299 EVP_DigestInit_ex(&md_ctx,(num == 2)
1300 ?s->ctx->md5:s->ctx->sha1, NULL);
1301 EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1302 EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1303 EVP_DigestUpdate(&md_ctx,param,param_len);
1304 EVP_DigestFinal_ex(&md_ctx,q,(unsigned int *)&i);
1308 i=RSA_verify(NID_md5_sha1, md_buf, j, p, n,
1312 al=SSL_AD_DECRYPT_ERROR;
1313 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_DECRYPT);
1319 al=SSL_AD_DECRYPT_ERROR;
1320 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1326 #ifndef OPENSSL_NO_DSA
1327 if (pkey->type == EVP_PKEY_DSA)
1330 EVP_VerifyInit_ex(&md_ctx,EVP_dss1(), NULL);
1331 EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1332 EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1333 EVP_VerifyUpdate(&md_ctx,param,param_len);
1334 if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey))
1337 al=SSL_AD_DECRYPT_ERROR;
1338 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1344 #ifndef OPENSSL_NO_ECDSA
1345 if (pkey->type == EVP_PKEY_EC)
1347 /* let's do ECDSA */
1348 EVP_VerifyInit_ex(&md_ctx,EVP_ecdsa(), NULL);
1349 EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1350 EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1351 EVP_VerifyUpdate(&md_ctx,param,param_len);
1352 if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey))
1355 al=SSL_AD_DECRYPT_ERROR;
1356 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1363 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1369 /* still data left over */
1370 if (!(alg & SSL_aNULL))
1372 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1377 al=SSL_AD_DECODE_ERROR;
1378 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_EXTRA_DATA_IN_MESSAGE);
1382 EVP_PKEY_free(pkey);
1383 EVP_MD_CTX_cleanup(&md_ctx);
1386 ssl3_send_alert(s,SSL3_AL_FATAL,al);
1388 EVP_PKEY_free(pkey);
1389 #ifndef OPENSSL_NO_RSA
1393 #ifndef OPENSSL_NO_DH
1397 #ifndef OPENSSL_NO_ECDH
1398 BN_CTX_free(bn_ctx);
1399 EC_POINT_free(srvr_ecpoint);
1403 EVP_MD_CTX_cleanup(&md_ctx);
1407 static int ssl3_get_certificate_request(SSL *s)
1410 unsigned long n,nc,l;
1411 unsigned int llen,ctype_num,i;
1413 const unsigned char *p,*q;
1415 STACK_OF(X509_NAME) *ca_sk=NULL;
1417 n=ssl3_get_message(s,
1418 SSL3_ST_CR_CERT_REQ_A,
1419 SSL3_ST_CR_CERT_REQ_B,
1424 if (!ok) return((int)n);
1426 s->s3->tmp.cert_req=0;
1428 if (s->s3->tmp.message_type == SSL3_MT_SERVER_DONE)
1430 s->s3->tmp.reuse_message=1;
1434 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE_REQUEST)
1436 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
1437 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_WRONG_MESSAGE_TYPE);
1441 /* TLS does not like anon-DH with client cert */
1442 if (s->version > SSL3_VERSION)
1444 l=s->s3->tmp.new_cipher->algorithms;
1447 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
1448 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER);
1453 p=d=(unsigned char *)s->init_msg;
1455 if ((ca_sk=sk_X509_NAME_new(ca_dn_cmp)) == NULL)
1457 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
1461 /* get the certificate types */
1463 if (ctype_num > SSL3_CT_NUMBER)
1464 ctype_num=SSL3_CT_NUMBER;
1465 for (i=0; i<ctype_num; i++)
1466 s->s3->tmp.ctype[i]= p[i];
1469 /* get the CA RDNs */
1474 out=fopen("/tmp/vsign.der","w");
1475 fwrite(p,1,llen,out);
1480 if ((llen+ctype_num+2+1) != n)
1482 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1483 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_LENGTH_MISMATCH);
1487 for (nc=0; nc<llen; )
1490 if ((l+nc+2) > llen)
1492 if ((s->options & SSL_OP_NETSCAPE_CA_DN_BUG))
1493 goto cont; /* netscape bugs */
1494 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1495 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_TOO_LONG);
1501 if ((xn=d2i_X509_NAME(NULL,&q,l)) == NULL)
1503 /* If netscape tolerance is on, ignore errors */
1504 if (s->options & SSL_OP_NETSCAPE_CA_DN_BUG)
1508 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1509 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_ASN1_LIB);
1516 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1517 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_LENGTH_MISMATCH);
1520 if (!sk_X509_NAME_push(ca_sk,xn))
1522 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
1536 /* we should setup a certificate to return.... */
1537 s->s3->tmp.cert_req=1;
1538 s->s3->tmp.ctype_num=ctype_num;
1539 if (s->s3->tmp.ca_names != NULL)
1540 sk_X509_NAME_pop_free(s->s3->tmp.ca_names,X509_NAME_free);
1541 s->s3->tmp.ca_names=ca_sk;
1546 if (ca_sk != NULL) sk_X509_NAME_pop_free(ca_sk,X509_NAME_free);
1550 static int ca_dn_cmp(const X509_NAME * const *a, const X509_NAME * const *b)
1552 return(X509_NAME_cmp(*a,*b));
1555 static int ssl3_get_server_done(SSL *s)
1560 n=ssl3_get_message(s,
1561 SSL3_ST_CR_SRVR_DONE_A,
1562 SSL3_ST_CR_SRVR_DONE_B,
1563 SSL3_MT_SERVER_DONE,
1564 30, /* should be very small, like 0 :-) */
1567 if (!ok) return((int)n);
1570 /* should contain no data */
1571 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1572 SSLerr(SSL_F_SSL3_GET_SERVER_DONE,SSL_R_LENGTH_MISMATCH);
1580 static const int KDF1_SHA1_len = 20;
1581 static void *KDF1_SHA1(void *in, size_t inlen, void *out, size_t outlen)
1583 #ifndef OPENSSL_NO_SHA
1584 if (outlen != SHA_DIGEST_LENGTH)
1586 return SHA1(in, inlen, out);
1592 static int ssl3_send_client_key_exchange(SSL *s)
1594 unsigned char *p,*d;
1597 #ifndef OPENSSL_NO_RSA
1599 EVP_PKEY *pkey=NULL;
1601 #ifndef OPENSSL_NO_KRB5
1603 #endif /* OPENSSL_NO_KRB5 */
1604 #ifndef OPENSSL_NO_ECDH
1605 EC_KEY *clnt_ecdh = NULL;
1606 EC_POINT *srvr_ecpoint = NULL;
1607 EVP_PKEY *srvr_pub_pkey = NULL;
1608 unsigned char *encodedPoint = NULL;
1609 int encoded_pt_len = 0;
1610 BN_CTX * bn_ctx = NULL;
1613 if (s->state == SSL3_ST_CW_KEY_EXCH_A)
1615 d=(unsigned char *)s->init_buf->data;
1618 l=s->s3->tmp.new_cipher->algorithms;
1620 /* Fool emacs indentation */
1622 #ifndef OPENSSL_NO_RSA
1623 else if (l & SSL_kRSA)
1626 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
1628 if (s->session->sess_cert->peer_rsa_tmp != NULL)
1629 rsa=s->session->sess_cert->peer_rsa_tmp;
1632 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1633 if ((pkey == NULL) ||
1634 (pkey->type != EVP_PKEY_RSA) ||
1635 (pkey->pkey.rsa == NULL))
1637 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1641 EVP_PKEY_free(pkey);
1644 tmp_buf[0]=s->client_version>>8;
1645 tmp_buf[1]=s->client_version&0xff;
1646 if (RAND_bytes(&(tmp_buf[2]),sizeof tmp_buf-2) <= 0)
1649 s->session->master_key_length=sizeof tmp_buf;
1652 /* Fix buf for TLS and beyond */
1653 if (s->version > SSL3_VERSION)
1655 n=RSA_public_encrypt(sizeof tmp_buf,
1656 tmp_buf,p,rsa,RSA_PKCS1_PADDING);
1658 if (s->options & SSL_OP_PKCS1_CHECK_1) p[1]++;
1659 if (s->options & SSL_OP_PKCS1_CHECK_2) tmp_buf[0]=0x70;
1663 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_BAD_RSA_ENCRYPT);
1667 /* Fix buf for TLS and beyond */
1668 if (s->version > SSL3_VERSION)
1674 s->session->master_key_length=
1675 s->method->ssl3_enc->generate_master_secret(s,
1676 s->session->master_key,
1677 tmp_buf,sizeof tmp_buf);
1678 OPENSSL_cleanse(tmp_buf,sizeof tmp_buf);
1681 #ifndef OPENSSL_NO_KRB5
1682 else if (l & SSL_kKRB5)
1684 krb5_error_code krb5rc;
1685 KSSL_CTX *kssl_ctx = s->kssl_ctx;
1686 /* krb5_data krb5_ap_req; */
1687 krb5_data *enc_ticket;
1688 krb5_data authenticator, *authp = NULL;
1689 EVP_CIPHER_CTX ciph_ctx;
1690 EVP_CIPHER *enc = NULL;
1691 unsigned char iv[EVP_MAX_IV_LENGTH];
1692 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
1693 unsigned char epms[SSL_MAX_MASTER_KEY_LENGTH
1694 + EVP_MAX_IV_LENGTH];
1695 int padl, outl = sizeof(epms);
1697 EVP_CIPHER_CTX_init(&ciph_ctx);
1700 printf("ssl3_send_client_key_exchange(%lx & %lx)\n",
1702 #endif /* KSSL_DEBUG */
1706 if (KRB5SENDAUTH) authp = &authenticator;
1707 #endif /* KRB5SENDAUTH */
1709 krb5rc = kssl_cget_tkt(kssl_ctx, &enc_ticket, authp,
1711 enc = kssl_map_enc(kssl_ctx->enctype);
1716 printf("kssl_cget_tkt rtn %d\n", krb5rc);
1717 if (krb5rc && kssl_err.text)
1718 printf("kssl_cget_tkt kssl_err=%s\n", kssl_err.text);
1720 #endif /* KSSL_DEBUG */
1724 ssl3_send_alert(s,SSL3_AL_FATAL,
1725 SSL_AD_HANDSHAKE_FAILURE);
1726 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1731 /* 20010406 VRS - Earlier versions used KRB5 AP_REQ
1732 ** in place of RFC 2712 KerberosWrapper, as in:
1734 ** Send ticket (copy to *p, set n = length)
1735 ** n = krb5_ap_req.length;
1736 ** memcpy(p, krb5_ap_req.data, krb5_ap_req.length);
1737 ** if (krb5_ap_req.data)
1738 ** kssl_krb5_free_data_contents(NULL,&krb5_ap_req);
1740 ** Now using real RFC 2712 KerberosWrapper
1741 ** (Thanks to Simon Wilkinson <sxw@sxw.org.uk>)
1742 ** Note: 2712 "opaque" types are here replaced
1743 ** with a 2-byte length followed by the value.
1745 ** KerberosWrapper= xx xx asn1ticket 0 0 xx xx encpms
1746 ** Where "xx xx" = length bytes. Shown here with
1747 ** optional authenticator omitted.
1750 /* KerberosWrapper.Ticket */
1751 s2n(enc_ticket->length,p);
1752 memcpy(p, enc_ticket->data, enc_ticket->length);
1753 p+= enc_ticket->length;
1754 n = enc_ticket->length + 2;
1756 /* KerberosWrapper.Authenticator */
1757 if (authp && authp->length)
1759 s2n(authp->length,p);
1760 memcpy(p, authp->data, authp->length);
1762 n+= authp->length + 2;
1770 s2n(0,p);/* null authenticator length */
1774 if (RAND_bytes(tmp_buf,sizeof tmp_buf) <= 0)
1777 /* 20010420 VRS. Tried it this way; failed.
1778 ** EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,NULL);
1779 ** EVP_CIPHER_CTX_set_key_length(&ciph_ctx,
1780 ** kssl_ctx->length);
1781 ** EVP_EncryptInit_ex(&ciph_ctx,NULL, key,iv);
1784 memset(iv, 0, sizeof iv); /* per RFC 1510 */
1785 EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,
1787 EVP_EncryptUpdate(&ciph_ctx,epms,&outl,tmp_buf,
1789 EVP_EncryptFinal_ex(&ciph_ctx,&(epms[outl]),&padl);
1791 if (outl > sizeof epms)
1793 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
1796 EVP_CIPHER_CTX_cleanup(&ciph_ctx);
1798 /* KerberosWrapper.EncryptedPreMasterSecret */
1800 memcpy(p, epms, outl);
1804 s->session->master_key_length=
1805 s->method->ssl3_enc->generate_master_secret(s,
1806 s->session->master_key,
1807 tmp_buf, sizeof tmp_buf);
1809 OPENSSL_cleanse(tmp_buf, sizeof tmp_buf);
1810 OPENSSL_cleanse(epms, outl);
1813 #ifndef OPENSSL_NO_DH
1814 else if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
1816 DH *dh_srvr,*dh_clnt;
1818 if (s->session->sess_cert->peer_dh_tmp != NULL)
1819 dh_srvr=s->session->sess_cert->peer_dh_tmp;
1822 /* we get them from the cert */
1823 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1824 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_DH_PARAMETERS);
1828 /* generate a new random key */
1829 if ((dh_clnt=DHparams_dup(dh_srvr)) == NULL)
1831 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1834 if (!DH_generate_key(dh_clnt))
1836 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1840 /* use the 'p' output buffer for the DH key, but
1841 * make sure to clear it out afterwards */
1843 n=DH_compute_key(p,dh_srvr->pub_key,dh_clnt);
1847 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1851 /* generate master key from the result */
1852 s->session->master_key_length=
1853 s->method->ssl3_enc->generate_master_secret(s,
1854 s->session->master_key,p,n);
1858 /* send off the data */
1859 n=BN_num_bytes(dh_clnt->pub_key);
1861 BN_bn2bin(dh_clnt->pub_key,p);
1866 /* perhaps clean things up a bit EAY EAY EAY EAY*/
1870 #ifndef OPENSSL_NO_ECDH
1871 else if ((l & SSL_kECDH) || (l & SSL_kECDHE))
1873 EC_GROUP *srvr_group = NULL;
1874 int ecdh_clnt_cert = 0;
1877 /* Did we send out the client's
1878 * ECDH share for use in premaster
1879 * computation as part of client certificate?
1880 * If so, set ecdh_clnt_cert to 1.
1882 if ((l & SSL_kECDH) && (s->cert != NULL))
1884 /* XXX: For now, we do not support client
1885 * authentication using ECDH certificates.
1886 * To add such support, one needs to add
1887 * code that checks for appropriate
1888 * conditions and sets ecdh_clnt_cert to 1.
1889 * For example, the cert have an ECC
1890 * key on the same curve as the server's
1891 * and the key should be authorized for
1894 * One also needs to add code in ssl3_connect
1895 * to skip sending the certificate verify
1898 * if ((s->cert->key->privatekey != NULL) &&
1899 * (s->cert->key->privatekey->type ==
1900 * EVP_PKEY_EC) && ...)
1901 * ecdh_clnt_cert = 1;
1905 if (s->session->sess_cert->peer_ecdh_tmp != NULL)
1907 srvr_group = s->session->sess_cert-> \
1908 peer_ecdh_tmp->group;
1909 srvr_ecpoint = s->session->sess_cert-> \
1910 peer_ecdh_tmp->pub_key;
1914 /* Get the Server Public Key from Cert */
1915 srvr_pub_pkey = X509_get_pubkey(s->session-> \
1916 sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
1917 if ((srvr_pub_pkey == NULL) ||
1918 (srvr_pub_pkey->type != EVP_PKEY_EC) ||
1919 (srvr_pub_pkey->pkey.eckey == NULL))
1921 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1922 ERR_R_INTERNAL_ERROR);
1926 srvr_group = srvr_pub_pkey->pkey.eckey->group;
1928 srvr_pub_pkey->pkey.eckey->pub_key;
1931 if ((srvr_group == NULL) || (srvr_ecpoint == NULL))
1933 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1934 ERR_R_INTERNAL_ERROR);
1938 if ((clnt_ecdh=EC_KEY_new()) == NULL)
1940 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1944 clnt_ecdh->group = srvr_group;
1947 /* Reuse key info from our certificate
1948 * We only need our private key to perform
1949 * the ECDH computation.
1951 clnt_ecdh->priv_key = BN_dup(s->cert->key-> \
1952 privatekey->pkey.eckey->priv_key);
1956 /* Generate a new ECDH key pair */
1957 if (!(EC_KEY_generate_key(clnt_ecdh)))
1959 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_ECDH_LIB);
1964 /* use the 'p' output buffer for the ECDH key, but
1965 * make sure to clear it out afterwards
1968 field_size = EC_GROUP_get_degree(clnt_ecdh->group);
1969 if (field_size <= 0)
1971 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1975 /* If field size is not more than 24 octets, then use SHA-1 hash of result;
1976 * otherwise, use result (see section 4.8 of draft-ietf-tls-ecc-03.txt;
1977 * this is new with this version of the Internet Draft).
1979 if (field_size <= 24 * 8)
1980 n=ECDH_compute_key(p, KDF1_SHA1_len, srvr_ecpoint, clnt_ecdh, KDF1_SHA1);
1982 n=ECDH_compute_key(p, (field_size+7)/8, srvr_ecpoint, clnt_ecdh, NULL);
1985 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1990 /* generate master key from the result */
1991 s->session->master_key_length = s->method->ssl3_enc \
1992 -> generate_master_secret(s,
1993 s->session->master_key,
1996 memset(p, 0, n); /* clean up */
2000 /* Send empty client key exch message */
2005 /* First check the size of encoding and
2006 * allocate memory accordingly.
2009 EC_POINT_point2oct(clnt_ecdh->group,
2011 POINT_CONVERSION_UNCOMPRESSED,
2014 encodedPoint = (unsigned char *)
2015 OPENSSL_malloc(encoded_pt_len *
2016 sizeof(unsigned char));
2017 bn_ctx = BN_CTX_new();
2018 if ((encodedPoint == NULL) ||
2021 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
2025 /* Encode the public key */
2026 n = EC_POINT_point2oct(clnt_ecdh->group,
2028 POINT_CONVERSION_UNCOMPRESSED,
2029 encodedPoint, encoded_pt_len, bn_ctx);
2031 *p = n; /* length of encoded point */
2032 /* Encoded point will be copied here */
2034 /* copy the point */
2035 memcpy((unsigned char *)p, encodedPoint, n);
2036 /* increment n to account for length field */
2040 /* Free allocated memory */
2041 BN_CTX_free(bn_ctx);
2042 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2043 if (clnt_ecdh != NULL)
2045 /* group is shared */
2046 clnt_ecdh->group = NULL;
2047 EC_KEY_free(clnt_ecdh);
2049 EVP_PKEY_free(srvr_pub_pkey);
2051 #endif /* !OPENSSL_NO_ECDH */
2054 ssl3_send_alert(s, SSL3_AL_FATAL,
2055 SSL_AD_HANDSHAKE_FAILURE);
2056 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2057 ERR_R_INTERNAL_ERROR);
2061 *(d++)=SSL3_MT_CLIENT_KEY_EXCHANGE;
2064 s->state=SSL3_ST_CW_KEY_EXCH_B;
2065 /* number of bytes to write */
2070 /* SSL3_ST_CW_KEY_EXCH_B */
2071 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2073 #ifndef OPENSSL_NO_ECDH
2074 BN_CTX_free(bn_ctx);
2075 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2076 if (clnt_ecdh != NULL)
2078 /* group is shared */
2079 clnt_ecdh->group = NULL;
2080 EC_KEY_free(clnt_ecdh);
2082 EVP_PKEY_free(srvr_pub_pkey);
2087 static int ssl3_send_client_verify(SSL *s)
2089 unsigned char *p,*d;
2090 unsigned char data[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];
2092 #ifndef OPENSSL_NO_RSA
2096 #ifndef OPENSSL_NO_DSA
2100 if (s->state == SSL3_ST_CW_CERT_VRFY_A)
2102 d=(unsigned char *)s->init_buf->data;
2104 pkey=s->cert->key->privatekey;
2106 s->method->ssl3_enc->cert_verify_mac(s,&(s->s3->finish_dgst2),
2107 &(data[MD5_DIGEST_LENGTH]));
2109 #ifndef OPENSSL_NO_RSA
2110 if (pkey->type == EVP_PKEY_RSA)
2112 s->method->ssl3_enc->cert_verify_mac(s,
2113 &(s->s3->finish_dgst1),&(data[0]));
2114 if (RSA_sign(NID_md5_sha1, data,
2115 MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH,
2116 &(p[2]), &u, pkey->pkey.rsa) <= 0 )
2118 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_RSA_LIB);
2126 #ifndef OPENSSL_NO_DSA
2127 if (pkey->type == EVP_PKEY_DSA)
2129 if (!DSA_sign(pkey->save_type,
2130 &(data[MD5_DIGEST_LENGTH]),
2131 SHA_DIGEST_LENGTH,&(p[2]),
2132 (unsigned int *)&j,pkey->pkey.dsa))
2134 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_DSA_LIB);
2142 #ifndef OPENSSL_NO_ECDSA
2143 if (pkey->type == EVP_PKEY_EC)
2145 if (!ECDSA_sign(pkey->save_type,
2146 &(data[MD5_DIGEST_LENGTH]),
2147 SHA_DIGEST_LENGTH,&(p[2]),
2148 (unsigned int *)&j,pkey->pkey.eckey))
2150 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,
2160 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_INTERNAL_ERROR);
2163 *(d++)=SSL3_MT_CERTIFICATE_VERIFY;
2166 s->state=SSL3_ST_CW_CERT_VRFY_B;
2167 s->init_num=(int)n+4;
2170 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2175 static int ssl3_send_client_certificate(SSL *s)
2178 EVP_PKEY *pkey=NULL;
2182 if (s->state == SSL3_ST_CW_CERT_A)
2184 if ((s->cert == NULL) ||
2185 (s->cert->key->x509 == NULL) ||
2186 (s->cert->key->privatekey == NULL))
2187 s->state=SSL3_ST_CW_CERT_B;
2189 s->state=SSL3_ST_CW_CERT_C;
2192 /* We need to get a client cert */
2193 if (s->state == SSL3_ST_CW_CERT_B)
2195 /* If we get an error, we need to
2196 * ssl->rwstate=SSL_X509_LOOKUP; return(-1);
2197 * We then get retied later */
2199 if (s->ctx->client_cert_cb != NULL)
2200 i=s->ctx->client_cert_cb(s,&(x509),&(pkey));
2203 s->rwstate=SSL_X509_LOOKUP;
2206 s->rwstate=SSL_NOTHING;
2207 if ((i == 1) && (pkey != NULL) && (x509 != NULL))
2209 s->state=SSL3_ST_CW_CERT_B;
2210 if ( !SSL_use_certificate(s,x509) ||
2211 !SSL_use_PrivateKey(s,pkey))
2217 SSLerr(SSL_F_SSL3_SEND_CLIENT_CERTIFICATE,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK);
2220 if (x509 != NULL) X509_free(x509);
2221 if (pkey != NULL) EVP_PKEY_free(pkey);
2224 if (s->version == SSL3_VERSION)
2226 s->s3->tmp.cert_req=0;
2227 ssl3_send_alert(s,SSL3_AL_WARNING,SSL_AD_NO_CERTIFICATE);
2232 s->s3->tmp.cert_req=2;
2236 /* Ok, we have a cert */
2237 s->state=SSL3_ST_CW_CERT_C;
2240 if (s->state == SSL3_ST_CW_CERT_C)
2242 s->state=SSL3_ST_CW_CERT_D;
2243 l=ssl3_output_cert_chain(s,
2244 (s->s3->tmp.cert_req == 2)?NULL:s->cert->key->x509);
2248 /* SSL3_ST_CW_CERT_D */
2249 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2252 #define has_bits(i,m) (((i)&(m)) == (m))
2254 static int ssl3_check_cert_and_algorithm(SSL *s)
2258 EVP_PKEY *pkey=NULL;
2260 #ifndef OPENSSL_NO_RSA
2263 #ifndef OPENSSL_NO_DH
2267 sc=s->session->sess_cert;
2271 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,ERR_R_INTERNAL_ERROR);
2275 algs=s->s3->tmp.new_cipher->algorithms;
2277 /* we don't have a certificate */
2278 if (algs & (SSL_aDH|SSL_aNULL|SSL_aKRB5))
2281 #ifndef OPENSSL_NO_RSA
2282 rsa=s->session->sess_cert->peer_rsa_tmp;
2284 #ifndef OPENSSL_NO_DH
2285 dh=s->session->sess_cert->peer_dh_tmp;
2288 /* This is the passed certificate */
2290 idx=sc->peer_cert_type;
2291 #ifndef OPENSSL_NO_ECDH
2292 if (idx == SSL_PKEY_ECC)
2294 if (check_srvr_ecc_cert_and_alg(sc->peer_pkeys[idx].x509,
2295 s->s3->tmp.new_cipher) == 0)
2296 { /* check failed */
2297 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_BAD_ECC_CERT);
2306 pkey=X509_get_pubkey(sc->peer_pkeys[idx].x509);
2307 i=X509_certificate_type(sc->peer_pkeys[idx].x509,pkey);
2308 EVP_PKEY_free(pkey);
2311 /* Check that we have a certificate if we require one */
2312 if ((algs & SSL_aRSA) && !has_bits(i,EVP_PK_RSA|EVP_PKT_SIGN))
2314 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_SIGNING_CERT);
2317 #ifndef OPENSSL_NO_DSA
2318 else if ((algs & SSL_aDSS) && !has_bits(i,EVP_PK_DSA|EVP_PKT_SIGN))
2320 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DSA_SIGNING_CERT);
2324 #ifndef OPENSSL_NO_RSA
2325 if ((algs & SSL_kRSA) &&
2326 !(has_bits(i,EVP_PK_RSA|EVP_PKT_ENC) || (rsa != NULL)))
2328 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_ENCRYPTING_CERT);
2332 #ifndef OPENSSL_NO_DH
2333 if ((algs & SSL_kEDH) &&
2334 !(has_bits(i,EVP_PK_DH|EVP_PKT_EXCH) || (dh != NULL)))
2336 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_KEY);
2339 else if ((algs & SSL_kDHr) && !has_bits(i,EVP_PK_DH|EVP_PKS_RSA))
2341 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_RSA_CERT);
2344 #ifndef OPENSSL_NO_DSA
2345 else if ((algs & SSL_kDHd) && !has_bits(i,EVP_PK_DH|EVP_PKS_DSA))
2347 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_DSA_CERT);
2353 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) && !has_bits(i,EVP_PKT_EXP))
2355 #ifndef OPENSSL_NO_RSA
2356 if (algs & SSL_kRSA)
2359 || RSA_size(rsa)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2361 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_RSA_KEY);
2367 #ifndef OPENSSL_NO_DH
2368 if (algs & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
2371 || DH_size(dh)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2373 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_DH_KEY);
2380 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);
2386 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
2392 #ifndef OPENSSL_NO_ECDH
2393 /* This is the complement of nid2curve_id in s3_srvr.c. */
2394 static int curve_id2nid(int curve_id)
2396 /* ECC curves from draft-ietf-tls-ecc-01.txt (Mar 15, 2001)
2397 * (no changes in draft-ietf-tls-ecc-03.txt [June 2003]) */
2398 static int nid_list[26] =
2401 NID_sect163k1, /* sect163k1 (1) */
2402 NID_sect163r1, /* sect163r1 (2) */
2403 NID_sect163r2, /* sect163r2 (3) */
2404 NID_sect193r1, /* sect193r1 (4) */
2405 NID_sect193r2, /* sect193r2 (5) */
2406 NID_sect233k1, /* sect233k1 (6) */
2407 NID_sect233r1, /* sect233r1 (7) */
2408 NID_sect239k1, /* sect239k1 (8) */
2409 NID_sect283k1, /* sect283k1 (9) */
2410 NID_sect283r1, /* sect283r1 (10) */
2411 NID_sect409k1, /* sect409k1 (11) */
2412 NID_sect409r1, /* sect409r1 (12) */
2413 NID_sect571k1, /* sect571k1 (13) */
2414 NID_sect571r1, /* sect571r1 (14) */
2415 NID_secp160k1, /* secp160k1 (15) */
2416 NID_secp160r1, /* secp160r1 (16) */
2417 NID_secp160r2, /* secp160r2 (17) */
2418 NID_secp192k1, /* secp192k1 (18) */
2419 NID_X9_62_prime192v1, /* secp192r1 (19) */
2420 NID_secp224k1, /* secp224k1 (20) */
2421 NID_secp224r1, /* secp224r1 (21) */
2422 NID_secp256k1, /* secp256k1 (22) */
2423 NID_X9_62_prime256v1, /* secp256r1 (23) */
2424 NID_secp384r1, /* secp384r1 (24) */
2425 NID_secp521r1 /* secp521r1 (25) */
2428 if ((curve_id < 1) || (curve_id > 25)) return 0;
2430 return nid_list[curve_id];