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) 1998-2002 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 * In addition, Sun covenants to all licensees who provide a reciprocal
121 * covenant with respect to their own patents if any, not to sue under
122 * current and future patent claims necessarily infringed by the making,
123 * using, practicing, selling, offering for sale and/or otherwise
124 * disposing of the Contribution as delivered hereunder
125 * (or portions thereof), provided that such covenant shall not apply:
126 * 1) for code that a licensee deletes from the Contribution;
127 * 2) separates from the Contribution; or
128 * 3) for infringements caused by:
129 * i) the modification of the Contribution or
130 * ii) the combination of the Contribution with other software or
131 * devices where such combination causes the infringement.
133 * ECC cipher suite support in OpenSSL originally written by
134 * Vipul Gupta and Sumit Gupta of Sun Microsystems Laboratories.
139 #include "ssl_locl.h"
140 #include "kssl_lcl.h"
141 #include <openssl/buffer.h>
142 #include <openssl/rand.h>
143 #include <openssl/objects.h>
144 #include <openssl/evp.h>
145 #include <openssl/md5.h>
146 #include "cryptlib.h"
148 static SSL_METHOD *ssl3_get_client_method(int ver);
149 static int ssl3_client_hello(SSL *s);
150 static int ssl3_get_server_hello(SSL *s);
151 static int ssl3_get_certificate_request(SSL *s);
152 static int ca_dn_cmp(const X509_NAME * const *a,const X509_NAME * const *b);
153 static int ssl3_get_server_done(SSL *s);
154 static int ssl3_send_client_verify(SSL *s);
155 static int ssl3_send_client_certificate(SSL *s);
156 static int ssl3_send_client_key_exchange(SSL *s);
157 static int ssl3_get_key_exchange(SSL *s);
158 static int ssl3_get_server_certificate(SSL *s);
159 static int ssl3_check_cert_and_algorithm(SSL *s);
161 #ifndef OPENSSL_NO_ECDH
162 static int curve_id2nid(int curve_id);
163 int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs);
166 static SSL_METHOD *ssl3_get_client_method(int ver)
168 if (ver == SSL3_VERSION)
169 return(SSLv3_client_method());
174 SSL_METHOD *SSLv3_client_method(void)
177 static SSL_METHOD SSLv3_client_data;
181 CRYPTO_w_lock(CRYPTO_LOCK_SSL_METHOD);
183 memcpy((char *)&SSLv3_client_data,(char *)sslv3_base_method(),
185 SSLv3_client_data.ssl_connect=ssl3_connect;
186 SSLv3_client_data.get_ssl_method=ssl3_get_client_method;
189 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_METHOD);
191 return(&SSLv3_client_data);
194 int ssl3_connect(SSL *s)
197 unsigned long Time=time(NULL),l;
199 void (*cb)(const SSL *ssl,int type,int val)=NULL;
201 int new_state,state,skip=0;;
203 RAND_add(&Time,sizeof(Time),0);
207 if (s->info_callback != NULL)
209 else if (s->ctx->info_callback != NULL)
210 cb=s->ctx->info_callback;
213 if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
221 case SSL_ST_RENEGOTIATE:
223 s->state=SSL_ST_CONNECT;
224 s->ctx->stats.sess_connect_renegotiate++;
228 case SSL_ST_BEFORE|SSL_ST_CONNECT:
229 case SSL_ST_OK|SSL_ST_CONNECT:
232 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
234 if ((s->version & 0xff00 ) != 0x0300)
236 SSLerr(SSL_F_SSL3_CONNECT, ERR_R_INTERNAL_ERROR);
241 /* s->version=SSL3_VERSION; */
242 s->type=SSL_ST_CONNECT;
244 if (s->init_buf == NULL)
246 if ((buf=BUF_MEM_new()) == NULL)
251 if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))
259 if (!ssl3_setup_buffers(s)) { ret= -1; goto end; }
261 /* setup buffing BIO */
262 if (!ssl_init_wbio_buffer(s,0)) { ret= -1; goto end; }
264 /* don't push the buffering BIO quite yet */
266 ssl3_init_finished_mac(s);
268 s->state=SSL3_ST_CW_CLNT_HELLO_A;
269 s->ctx->stats.sess_connect++;
273 case SSL3_ST_CW_CLNT_HELLO_A:
274 case SSL3_ST_CW_CLNT_HELLO_B:
277 ret=ssl3_client_hello(s);
278 if (ret <= 0) goto end;
279 s->state=SSL3_ST_CR_SRVR_HELLO_A;
282 /* turn on buffering for the next lot of output */
283 if (s->bbio != s->wbio)
284 s->wbio=BIO_push(s->bbio,s->wbio);
288 case SSL3_ST_CR_SRVR_HELLO_A:
289 case SSL3_ST_CR_SRVR_HELLO_B:
290 ret=ssl3_get_server_hello(s);
291 if (ret <= 0) goto end;
293 s->state=SSL3_ST_CR_FINISHED_A;
295 s->state=SSL3_ST_CR_CERT_A;
299 case SSL3_ST_CR_CERT_A:
300 case SSL3_ST_CR_CERT_B:
301 /* Check if it is anon DH/ECDH */
302 if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
304 ret=ssl3_get_server_certificate(s);
305 if (ret <= 0) goto end;
309 s->state=SSL3_ST_CR_KEY_EXCH_A;
313 case SSL3_ST_CR_KEY_EXCH_A:
314 case SSL3_ST_CR_KEY_EXCH_B:
315 ret=ssl3_get_key_exchange(s);
316 if (ret <= 0) goto end;
317 s->state=SSL3_ST_CR_CERT_REQ_A;
320 /* at this point we check that we have the
321 * required stuff from the server */
322 if (!ssl3_check_cert_and_algorithm(s))
329 case SSL3_ST_CR_CERT_REQ_A:
330 case SSL3_ST_CR_CERT_REQ_B:
331 ret=ssl3_get_certificate_request(s);
332 if (ret <= 0) goto end;
333 s->state=SSL3_ST_CR_SRVR_DONE_A;
337 case SSL3_ST_CR_SRVR_DONE_A:
338 case SSL3_ST_CR_SRVR_DONE_B:
339 ret=ssl3_get_server_done(s);
340 if (ret <= 0) goto end;
341 if (s->s3->tmp.cert_req)
342 s->state=SSL3_ST_CW_CERT_A;
344 s->state=SSL3_ST_CW_KEY_EXCH_A;
349 case SSL3_ST_CW_CERT_A:
350 case SSL3_ST_CW_CERT_B:
351 case SSL3_ST_CW_CERT_C:
352 case SSL3_ST_CW_CERT_D:
353 ret=ssl3_send_client_certificate(s);
354 if (ret <= 0) goto end;
355 s->state=SSL3_ST_CW_KEY_EXCH_A;
359 case SSL3_ST_CW_KEY_EXCH_A:
360 case SSL3_ST_CW_KEY_EXCH_B:
361 ret=ssl3_send_client_key_exchange(s);
362 if (ret <= 0) goto end;
363 l=s->s3->tmp.new_cipher->algorithms;
364 /* EAY EAY EAY need to check for DH fix cert
366 /* For TLS, cert_req is set to 2, so a cert chain
367 * of nothing is sent, but no verify packet is sent */
368 /* XXX: For now, we do not support client
369 * authentication in ECDH cipher suites with
370 * ECDH (rather than ECDSA) certificates.
371 * We need to skip the certificate verify
372 * message when client's ECDH public key is sent
373 * inside the client certificate.
375 if (s->s3->tmp.cert_req == 1)
377 s->state=SSL3_ST_CW_CERT_VRFY_A;
381 s->state=SSL3_ST_CW_CHANGE_A;
382 s->s3->change_cipher_spec=0;
388 case SSL3_ST_CW_CERT_VRFY_A:
389 case SSL3_ST_CW_CERT_VRFY_B:
390 ret=ssl3_send_client_verify(s);
391 if (ret <= 0) goto end;
392 s->state=SSL3_ST_CW_CHANGE_A;
394 s->s3->change_cipher_spec=0;
397 case SSL3_ST_CW_CHANGE_A:
398 case SSL3_ST_CW_CHANGE_B:
399 ret=ssl3_send_change_cipher_spec(s,
400 SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B);
401 if (ret <= 0) goto end;
402 s->state=SSL3_ST_CW_FINISHED_A;
405 s->session->cipher=s->s3->tmp.new_cipher;
406 if (s->s3->tmp.new_compression == NULL)
407 s->session->compress_meth=0;
409 s->session->compress_meth=
410 s->s3->tmp.new_compression->id;
411 if (!s->method->ssl3_enc->setup_key_block(s))
417 if (!s->method->ssl3_enc->change_cipher_state(s,
418 SSL3_CHANGE_CIPHER_CLIENT_WRITE))
426 case SSL3_ST_CW_FINISHED_A:
427 case SSL3_ST_CW_FINISHED_B:
428 ret=ssl3_send_finished(s,
429 SSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B,
430 s->method->ssl3_enc->client_finished_label,
431 s->method->ssl3_enc->client_finished_label_len);
432 if (ret <= 0) goto end;
433 s->state=SSL3_ST_CW_FLUSH;
436 s->s3->flags&= ~SSL3_FLAGS_POP_BUFFER;
439 s->s3->tmp.next_state=SSL_ST_OK;
440 if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED)
443 s->s3->flags|=SSL3_FLAGS_POP_BUFFER;
444 s->s3->delay_buf_pop_ret=0;
449 s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A;
454 case SSL3_ST_CR_FINISHED_A:
455 case SSL3_ST_CR_FINISHED_B:
457 ret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A,
458 SSL3_ST_CR_FINISHED_B);
459 if (ret <= 0) goto end;
462 s->state=SSL3_ST_CW_CHANGE_A;
468 case SSL3_ST_CW_FLUSH:
469 /* number of bytes to be flushed */
470 num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);
473 s->rwstate=SSL_WRITING;
474 num1=BIO_flush(s->wbio);
475 if (num1 <= 0) { ret= -1; goto end; }
476 s->rwstate=SSL_NOTHING;
479 s->state=s->s3->tmp.next_state;
483 /* clean a few things up */
484 ssl3_cleanup_key_block(s);
486 if (s->init_buf != NULL)
488 BUF_MEM_free(s->init_buf);
492 /* If we are not 'joining' the last two packets,
493 * remove the buffering now */
494 if (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER))
495 ssl_free_wbio_buffer(s);
496 /* else do it later in ssl3_write */
501 ssl_update_cache(s,SSL_SESS_CACHE_CLIENT);
502 if (s->hit) s->ctx->stats.sess_hit++;
506 s->handshake_func=ssl3_connect;
507 s->ctx->stats.sess_connect_good++;
509 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);
515 SSLerr(SSL_F_SSL3_CONNECT,SSL_R_UNKNOWN_STATE);
521 /* did we do anything */
522 if (!s->s3->tmp.reuse_message && !skip)
526 if ((ret=BIO_flush(s->wbio)) <= 0)
530 if ((cb != NULL) && (s->state != state))
534 cb(s,SSL_CB_CONNECT_LOOP,1);
543 cb(s,SSL_CB_CONNECT_EXIT,ret);
548 static int ssl3_client_hello(SSL *s)
553 unsigned long Time,l;
556 buf=(unsigned char *)s->init_buf->data;
557 if (s->state == SSL3_ST_CW_CLNT_HELLO_A)
559 if ((s->session == NULL) ||
560 (s->session->ssl_version != s->version) ||
561 (s->session->not_resumable))
563 if (!ssl_get_new_session(s,0))
566 /* else use the pre-loaded session */
568 p=s->s3->client_random;
569 Time=time(NULL); /* Time */
571 RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-sizeof(Time));
573 /* Do the message type and length last */
576 *(p++)=s->version>>8;
577 *(p++)=s->version&0xff;
578 s->client_version=s->version;
581 memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
588 i=s->session->session_id_length;
592 if (i > sizeof s->session->session_id)
594 SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
597 memcpy(p,s->session->session_id,i);
601 /* Ciphers supported */
602 i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]));
605 SSLerr(SSL_F_SSL3_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
612 if (s->ctx->comp_methods == NULL)
615 j=sk_SSL_COMP_num(s->ctx->comp_methods);
619 comp=sk_SSL_COMP_value(s->ctx->comp_methods,i);
622 *(p++)=0; /* Add the NULL method */
626 *(d++)=SSL3_MT_CLIENT_HELLO;
629 s->state=SSL3_ST_CW_CLNT_HELLO_B;
630 /* number of bytes to write */
635 /* SSL3_ST_CW_CLNT_HELLO_B */
636 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
641 static int ssl3_get_server_hello(SSL *s)
643 STACK_OF(SSL_CIPHER) *sk;
651 n=ssl3_get_message(s,
652 SSL3_ST_CR_SRVR_HELLO_A,
653 SSL3_ST_CR_SRVR_HELLO_B,
654 SSL3_MT_SERVER_HELLO,
658 if (!ok) return((int)n);
659 d=p=(unsigned char *)s->init_msg;
661 if ((p[0] != (s->version>>8)) || (p[1] != (s->version&0xff)))
663 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_SSL_VERSION);
664 s->version=(s->version&0xff00)|p[1];
665 al=SSL_AD_PROTOCOL_VERSION;
670 /* load the server hello data */
671 /* load the server random */
672 memcpy(s->s3->server_random,p,SSL3_RANDOM_SIZE);
675 /* get the session-id */
678 if ((j > sizeof s->session->session_id) || (j > SSL3_SESSION_ID_SIZE))
680 al=SSL_AD_ILLEGAL_PARAMETER;
681 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SSL3_SESSION_ID_TOO_LONG);
684 if (j != 0 && j == s->session->session_id_length
685 && memcmp(p,s->session->session_id,j) == 0)
687 if(s->sid_ctx_length != s->session->sid_ctx_length
688 || memcmp(s->session->sid_ctx,s->sid_ctx,s->sid_ctx_length))
690 /* actually a client application bug */
691 al=SSL_AD_ILLEGAL_PARAMETER;
692 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);
697 else /* a miss or crap from the other end */
699 /* If we were trying for session-id reuse, make a new
700 * SSL_SESSION so we don't stuff up other people */
702 if (s->session->session_id_length > 0)
704 if (!ssl_get_new_session(s,0))
706 al=SSL_AD_INTERNAL_ERROR;
710 s->session->session_id_length=j;
711 memcpy(s->session->session_id,p,j); /* j could be 0 */
714 c=ssl_get_cipher_by_char(s,p);
718 al=SSL_AD_ILLEGAL_PARAMETER;
719 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNKNOWN_CIPHER_RETURNED);
722 p+=ssl_put_cipher_by_char(s,NULL,NULL);
724 sk=ssl_get_ciphers_by_id(s);
725 i=sk_SSL_CIPHER_find(sk,c);
728 /* we did not say we would use this cipher */
729 al=SSL_AD_ILLEGAL_PARAMETER;
730 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_CIPHER_RETURNED);
734 if (s->hit && (s->session->cipher != c))
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 unsigned char *p,*d,*q;
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 d=p=(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 unsigned char *p,*d,*q;
1414 STACK_OF(X509_NAME) *ca_sk=NULL;
1416 n=ssl3_get_message(s,
1417 SSL3_ST_CR_CERT_REQ_A,
1418 SSL3_ST_CR_CERT_REQ_B,
1423 if (!ok) return((int)n);
1425 s->s3->tmp.cert_req=0;
1427 if (s->s3->tmp.message_type == SSL3_MT_SERVER_DONE)
1429 s->s3->tmp.reuse_message=1;
1433 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE_REQUEST)
1435 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
1436 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_WRONG_MESSAGE_TYPE);
1440 /* TLS does not like anon-DH with client cert */
1441 if (s->version > SSL3_VERSION)
1443 l=s->s3->tmp.new_cipher->algorithms;
1446 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
1447 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER);
1452 d=p=(unsigned char *)s->init_msg;
1454 if ((ca_sk=sk_X509_NAME_new(ca_dn_cmp)) == NULL)
1456 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
1460 /* get the certificate types */
1462 if (ctype_num > SSL3_CT_NUMBER)
1463 ctype_num=SSL3_CT_NUMBER;
1464 for (i=0; i<ctype_num; i++)
1465 s->s3->tmp.ctype[i]= p[i];
1468 /* get the CA RDNs */
1473 out=fopen("/tmp/vsign.der","w");
1474 fwrite(p,1,llen,out);
1479 if ((llen+ctype_num+2+1) != n)
1481 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1482 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_LENGTH_MISMATCH);
1486 for (nc=0; nc<llen; )
1489 if ((l+nc+2) > llen)
1491 if ((s->options & SSL_OP_NETSCAPE_CA_DN_BUG))
1492 goto cont; /* netscape bugs */
1493 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1494 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_TOO_LONG);
1500 if ((xn=d2i_X509_NAME(NULL,&q,l)) == NULL)
1502 /* If netscape tolerance is on, ignore errors */
1503 if (s->options & SSL_OP_NETSCAPE_CA_DN_BUG)
1507 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1508 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_ASN1_LIB);
1515 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1516 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_LENGTH_MISMATCH);
1519 if (!sk_X509_NAME_push(ca_sk,xn))
1521 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
1535 /* we should setup a certificate to return.... */
1536 s->s3->tmp.cert_req=1;
1537 s->s3->tmp.ctype_num=ctype_num;
1538 if (s->s3->tmp.ca_names != NULL)
1539 sk_X509_NAME_pop_free(s->s3->tmp.ca_names,X509_NAME_free);
1540 s->s3->tmp.ca_names=ca_sk;
1545 if (ca_sk != NULL) sk_X509_NAME_pop_free(ca_sk,X509_NAME_free);
1549 static int ca_dn_cmp(const X509_NAME * const *a, const X509_NAME * const *b)
1551 return(X509_NAME_cmp(*a,*b));
1554 static int ssl3_get_server_done(SSL *s)
1559 n=ssl3_get_message(s,
1560 SSL3_ST_CR_SRVR_DONE_A,
1561 SSL3_ST_CR_SRVR_DONE_B,
1562 SSL3_MT_SERVER_DONE,
1563 30, /* should be very small, like 0 :-) */
1566 if (!ok) return((int)n);
1569 /* should contain no data */
1570 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1571 SSLerr(SSL_F_SSL3_GET_SERVER_DONE,SSL_R_LENGTH_MISMATCH);
1578 static int ssl3_send_client_key_exchange(SSL *s)
1580 unsigned char *p,*d;
1583 #ifndef OPENSSL_NO_RSA
1585 EVP_PKEY *pkey=NULL;
1587 #ifndef OPENSSL_NO_KRB5
1589 #endif /* OPENSSL_NO_KRB5 */
1590 #ifndef OPENSSL_NO_ECDH
1591 EC_KEY *clnt_ecdh = NULL;
1592 EC_POINT *srvr_ecpoint = NULL;
1593 EVP_PKEY *srvr_pub_pkey = NULL;
1594 unsigned char *encodedPoint = NULL;
1595 int encoded_pt_len = 0;
1596 BN_CTX * bn_ctx = NULL;
1599 if (s->state == SSL3_ST_CW_KEY_EXCH_A)
1601 d=(unsigned char *)s->init_buf->data;
1604 l=s->s3->tmp.new_cipher->algorithms;
1606 /* Fool emacs indentation */
1608 #ifndef OPENSSL_NO_RSA
1609 else if (l & SSL_kRSA)
1612 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
1614 if (s->session->sess_cert->peer_rsa_tmp != NULL)
1615 rsa=s->session->sess_cert->peer_rsa_tmp;
1618 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1619 if ((pkey == NULL) ||
1620 (pkey->type != EVP_PKEY_RSA) ||
1621 (pkey->pkey.rsa == NULL))
1623 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1627 EVP_PKEY_free(pkey);
1630 tmp_buf[0]=s->client_version>>8;
1631 tmp_buf[1]=s->client_version&0xff;
1632 if (RAND_bytes(&(tmp_buf[2]),SSL_MAX_MASTER_KEY_LENGTH-2) <= 0)
1635 s->session->master_key_length=SSL_MAX_MASTER_KEY_LENGTH;
1638 /* Fix buf for TLS and beyond */
1639 if (s->version > SSL3_VERSION)
1641 n=RSA_public_encrypt(SSL_MAX_MASTER_KEY_LENGTH,
1642 tmp_buf,p,rsa,RSA_PKCS1_PADDING);
1644 if (s->options & SSL_OP_PKCS1_CHECK_1) p[1]++;
1645 if (s->options & SSL_OP_PKCS1_CHECK_2) tmp_buf[0]=0x70;
1649 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_BAD_RSA_ENCRYPT);
1653 /* Fix buf for TLS and beyond */
1654 if (s->version > SSL3_VERSION)
1660 s->session->master_key_length=
1661 s->method->ssl3_enc->generate_master_secret(s,
1662 s->session->master_key,
1663 tmp_buf,SSL_MAX_MASTER_KEY_LENGTH);
1664 memset(tmp_buf,0,SSL_MAX_MASTER_KEY_LENGTH);
1667 #ifndef OPENSSL_NO_KRB5
1668 else if (l & SSL_kKRB5)
1670 krb5_error_code krb5rc;
1671 KSSL_CTX *kssl_ctx = s->kssl_ctx;
1672 /* krb5_data krb5_ap_req; */
1673 krb5_data *enc_ticket;
1674 krb5_data authenticator, *authp = NULL;
1675 EVP_CIPHER_CTX ciph_ctx;
1676 EVP_CIPHER *enc = NULL;
1677 unsigned char iv[EVP_MAX_IV_LENGTH];
1678 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
1679 unsigned char epms[SSL_MAX_MASTER_KEY_LENGTH
1680 + EVP_MAX_IV_LENGTH];
1681 int padl, outl = sizeof(epms);
1683 EVP_CIPHER_CTX_init(&ciph_ctx);
1686 printf("ssl3_send_client_key_exchange(%lx & %lx)\n",
1688 #endif /* KSSL_DEBUG */
1692 if (KRB5SENDAUTH) authp = &authenticator;
1693 #endif /* KRB5SENDAUTH */
1695 krb5rc = kssl_cget_tkt(kssl_ctx, &enc_ticket, authp,
1697 enc = kssl_map_enc(kssl_ctx->enctype);
1702 printf("kssl_cget_tkt rtn %d\n", krb5rc);
1703 if (krb5rc && kssl_err.text)
1704 printf("kssl_cget_tkt kssl_err=%s\n", kssl_err.text);
1706 #endif /* KSSL_DEBUG */
1710 ssl3_send_alert(s,SSL3_AL_FATAL,
1711 SSL_AD_HANDSHAKE_FAILURE);
1712 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1717 /* 20010406 VRS - Earlier versions used KRB5 AP_REQ
1718 ** in place of RFC 2712 KerberosWrapper, as in:
1720 ** Send ticket (copy to *p, set n = length)
1721 ** n = krb5_ap_req.length;
1722 ** memcpy(p, krb5_ap_req.data, krb5_ap_req.length);
1723 ** if (krb5_ap_req.data)
1724 ** kssl_krb5_free_data_contents(NULL,&krb5_ap_req);
1726 ** Now using real RFC 2712 KerberosWrapper
1727 ** (Thanks to Simon Wilkinson <sxw@sxw.org.uk>)
1728 ** Note: 2712 "opaque" types are here replaced
1729 ** with a 2-byte length followed by the value.
1731 ** KerberosWrapper= xx xx asn1ticket 0 0 xx xx encpms
1732 ** Where "xx xx" = length bytes. Shown here with
1733 ** optional authenticator omitted.
1736 /* KerberosWrapper.Ticket */
1737 s2n(enc_ticket->length,p);
1738 memcpy(p, enc_ticket->data, enc_ticket->length);
1739 p+= enc_ticket->length;
1740 n = enc_ticket->length + 2;
1742 /* KerberosWrapper.Authenticator */
1743 if (authp && authp->length)
1745 s2n(authp->length,p);
1746 memcpy(p, authp->data, authp->length);
1748 n+= authp->length + 2;
1756 s2n(0,p);/* null authenticator length */
1760 if (RAND_bytes(tmp_buf,SSL_MAX_MASTER_KEY_LENGTH) <= 0)
1763 /* 20010420 VRS. Tried it this way; failed.
1764 ** EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,NULL);
1765 ** EVP_CIPHER_CTX_set_key_length(&ciph_ctx,
1766 ** kssl_ctx->length);
1767 ** EVP_EncryptInit_ex(&ciph_ctx,NULL, key,iv);
1770 memset(iv, 0, EVP_MAX_IV_LENGTH); /* per RFC 1510 */
1771 EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,
1773 EVP_EncryptUpdate(&ciph_ctx,epms,&outl,tmp_buf,
1774 SSL_MAX_MASTER_KEY_LENGTH);
1775 EVP_EncryptFinal_ex(&ciph_ctx,&(epms[outl]),&padl);
1777 if (outl > sizeof epms)
1779 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
1782 EVP_CIPHER_CTX_cleanup(&ciph_ctx);
1784 /* KerberosWrapper.EncryptedPreMasterSecret */
1786 memcpy(p, epms, outl);
1790 s->session->master_key_length=
1791 s->method->ssl3_enc->generate_master_secret(s,
1792 s->session->master_key,
1793 tmp_buf, SSL_MAX_MASTER_KEY_LENGTH);
1795 memset(tmp_buf, 0, SSL_MAX_MASTER_KEY_LENGTH);
1796 memset(epms, 0, outl);
1799 #ifndef OPENSSL_NO_DH
1800 else if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
1802 DH *dh_srvr,*dh_clnt;
1804 if (s->session->sess_cert->peer_dh_tmp != NULL)
1805 dh_srvr=s->session->sess_cert->peer_dh_tmp;
1808 /* we get them from the cert */
1809 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1810 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_DH_PARAMETERS);
1814 /* generate a new random key */
1815 if ((dh_clnt=DHparams_dup(dh_srvr)) == NULL)
1817 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1820 if (!DH_generate_key(dh_clnt))
1822 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1826 /* use the 'p' output buffer for the DH key, but
1827 * make sure to clear it out afterwards */
1829 n=DH_compute_key(p,dh_srvr->pub_key,dh_clnt);
1833 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1837 /* generate master key from the result */
1838 s->session->master_key_length=
1839 s->method->ssl3_enc->generate_master_secret(s,
1840 s->session->master_key,p,n);
1844 /* send off the data */
1845 n=BN_num_bytes(dh_clnt->pub_key);
1847 BN_bn2bin(dh_clnt->pub_key,p);
1852 /* perhaps clean things up a bit EAY EAY EAY EAY*/
1856 #ifndef OPENSSL_NO_ECDH
1857 else if ((l & SSL_kECDH) || (l & SSL_kECDHE))
1859 EC_GROUP *srvr_group = NULL;
1860 int ecdh_clnt_cert = 0;
1862 /* Did we send out the client's
1863 * ECDH share for use in premaster
1864 * computation as part of client certificate?
1865 * If so, set ecdh_clnt_cert to 1.
1867 if ((l & SSL_kECDH) && (s->cert != NULL))
1869 /* XXX: For now, we do not support client
1870 * authentication using ECDH certificates.
1871 * To add such support, one needs to add
1872 * code that checks for appropriate
1873 * conditions and sets ecdh_clnt_cert to 1.
1874 * For example, the cert have an ECC
1875 * key on the same curve as the server's
1876 * and the key should be authorized for
1879 * One also needs to add code in ssl3_connect
1880 * to skip sending the certificate verify
1883 * if ((s->cert->key->privatekey != NULL) &&
1884 * (s->cert->key->privatekey->type ==
1885 * EVP_PKEY_EC) && ...)
1886 * ecdh_clnt_cert = 1;
1890 if (s->session->sess_cert->peer_ecdh_tmp != NULL)
1892 srvr_group = s->session->sess_cert-> \
1893 peer_ecdh_tmp->group;
1894 srvr_ecpoint = s->session->sess_cert-> \
1895 peer_ecdh_tmp->pub_key;
1899 /* Get the Server Public Key from Cert */
1900 srvr_pub_pkey = X509_get_pubkey(s->session-> \
1901 sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
1902 if ((srvr_pub_pkey == NULL) ||
1903 (srvr_pub_pkey->type != EVP_PKEY_EC) ||
1904 (srvr_pub_pkey->pkey.eckey == NULL))
1906 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1907 ERR_R_INTERNAL_ERROR);
1911 srvr_group = srvr_pub_pkey->pkey.eckey->group;
1913 srvr_pub_pkey->pkey.eckey->pub_key;
1916 if ((srvr_group == NULL) || (srvr_ecpoint == NULL))
1918 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1919 ERR_R_INTERNAL_ERROR);
1923 if ((clnt_ecdh=EC_KEY_new()) == NULL)
1925 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1929 clnt_ecdh->group = srvr_group;
1932 /* Reuse key info from our certificate
1933 * We only need our private key to perform
1934 * the ECDH computation.
1936 clnt_ecdh->priv_key = BN_dup(s->cert->key-> \
1937 privatekey->pkey.eckey->priv_key);
1941 /* Generate a new ECDH key pair */
1942 if (!(EC_KEY_generate_key(clnt_ecdh)))
1944 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_ECDH_LIB);
1949 /* use the 'p' output buffer for the ECDH key, but
1950 * make sure to clear it out afterwards
1953 n=ECDH_compute_key(p, srvr_ecpoint, clnt_ecdh);
1956 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1961 /* generate master key from the result */
1962 s->session->master_key_length = s->method->ssl3_enc \
1963 -> generate_master_secret(s,
1964 s->session->master_key,
1967 memset(p, 0, n); /* clean up */
1971 /* Send empty client key exch message */
1976 /* First check the size of encoding and
1977 * allocate memory accordingly.
1980 EC_POINT_point2oct(clnt_ecdh->group,
1982 POINT_CONVERSION_UNCOMPRESSED,
1985 encodedPoint = (unsigned char *)
1986 OPENSSL_malloc(encoded_pt_len *
1987 sizeof(unsigned char));
1988 bn_ctx = BN_CTX_new();
1989 if ((encodedPoint == NULL) ||
1992 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1996 /* Encode the public key */
1997 n = EC_POINT_point2oct(clnt_ecdh->group,
1999 POINT_CONVERSION_UNCOMPRESSED,
2000 encodedPoint, encoded_pt_len, bn_ctx);
2002 *p = n; /* length of encoded point */
2003 /* Encoded point will be copied here */
2005 /* copy the point */
2006 memcpy((unsigned char *)p, encodedPoint, n);
2007 /* increment n to account for length field */
2011 /* Free allocated memory */
2012 BN_CTX_free(bn_ctx);
2013 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2014 if (clnt_ecdh != NULL)
2016 /* group is shared */
2017 clnt_ecdh->group = NULL;
2018 EC_KEY_free(clnt_ecdh);
2020 EVP_PKEY_free(srvr_pub_pkey);
2022 #endif /* !OPENSSL_NO_ECDH */
2025 ssl3_send_alert(s, SSL3_AL_FATAL,
2026 SSL_AD_HANDSHAKE_FAILURE);
2027 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2028 ERR_R_INTERNAL_ERROR);
2032 *(d++)=SSL3_MT_CLIENT_KEY_EXCHANGE;
2035 s->state=SSL3_ST_CW_KEY_EXCH_B;
2036 /* number of bytes to write */
2041 /* SSL3_ST_CW_KEY_EXCH_B */
2042 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2044 #ifndef OPENSSL_NO_ECDH
2045 BN_CTX_free(bn_ctx);
2046 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2047 if (clnt_ecdh != NULL)
2049 /* group is shared */
2050 clnt_ecdh->group = NULL;
2051 EC_KEY_free(clnt_ecdh);
2053 EVP_PKEY_free(srvr_pub_pkey);
2058 static int ssl3_send_client_verify(SSL *s)
2060 unsigned char *p,*d;
2061 unsigned char data[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];
2063 #ifndef OPENSSL_NO_RSA
2067 #ifndef OPENSSL_NO_DSA
2071 if (s->state == SSL3_ST_CW_CERT_VRFY_A)
2073 d=(unsigned char *)s->init_buf->data;
2075 pkey=s->cert->key->privatekey;
2077 s->method->ssl3_enc->cert_verify_mac(s,&(s->s3->finish_dgst2),
2078 &(data[MD5_DIGEST_LENGTH]));
2080 #ifndef OPENSSL_NO_RSA
2081 if (pkey->type == EVP_PKEY_RSA)
2083 s->method->ssl3_enc->cert_verify_mac(s,
2084 &(s->s3->finish_dgst1),&(data[0]));
2085 if (RSA_sign(NID_md5_sha1, data,
2086 MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH,
2087 &(p[2]), &u, pkey->pkey.rsa) <= 0 )
2089 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_RSA_LIB);
2097 #ifndef OPENSSL_NO_DSA
2098 if (pkey->type == EVP_PKEY_DSA)
2100 if (!DSA_sign(pkey->save_type,
2101 &(data[MD5_DIGEST_LENGTH]),
2102 SHA_DIGEST_LENGTH,&(p[2]),
2103 (unsigned int *)&j,pkey->pkey.dsa))
2105 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_DSA_LIB);
2113 #ifndef OPENSSL_NO_ECDSA
2114 if (pkey->type == EVP_PKEY_EC)
2116 if (!ECDSA_sign(pkey->save_type,
2117 &(data[MD5_DIGEST_LENGTH]),
2118 SHA_DIGEST_LENGTH,&(p[2]),
2119 (unsigned int *)&j,pkey->pkey.eckey))
2121 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,
2131 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_INTERNAL_ERROR);
2134 *(d++)=SSL3_MT_CERTIFICATE_VERIFY;
2137 s->init_num=(int)n+4;
2140 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2145 static int ssl3_send_client_certificate(SSL *s)
2148 EVP_PKEY *pkey=NULL;
2152 if (s->state == SSL3_ST_CW_CERT_A)
2154 if ((s->cert == NULL) ||
2155 (s->cert->key->x509 == NULL) ||
2156 (s->cert->key->privatekey == NULL))
2157 s->state=SSL3_ST_CW_CERT_B;
2159 s->state=SSL3_ST_CW_CERT_C;
2162 /* We need to get a client cert */
2163 if (s->state == SSL3_ST_CW_CERT_B)
2165 /* If we get an error, we need to
2166 * ssl->rwstate=SSL_X509_LOOKUP; return(-1);
2167 * We then get retied later */
2169 if (s->ctx->client_cert_cb != NULL)
2170 i=s->ctx->client_cert_cb(s,&(x509),&(pkey));
2173 s->rwstate=SSL_X509_LOOKUP;
2176 s->rwstate=SSL_NOTHING;
2177 if ((i == 1) && (pkey != NULL) && (x509 != NULL))
2179 s->state=SSL3_ST_CW_CERT_B;
2180 if ( !SSL_use_certificate(s,x509) ||
2181 !SSL_use_PrivateKey(s,pkey))
2187 SSLerr(SSL_F_SSL3_SEND_CLIENT_CERTIFICATE,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK);
2190 if (x509 != NULL) X509_free(x509);
2191 if (pkey != NULL) EVP_PKEY_free(pkey);
2194 if (s->version == SSL3_VERSION)
2196 s->s3->tmp.cert_req=0;
2197 ssl3_send_alert(s,SSL3_AL_WARNING,SSL_AD_NO_CERTIFICATE);
2202 s->s3->tmp.cert_req=2;
2206 /* Ok, we have a cert */
2207 s->state=SSL3_ST_CW_CERT_C;
2210 if (s->state == SSL3_ST_CW_CERT_C)
2212 s->state=SSL3_ST_CW_CERT_D;
2213 l=ssl3_output_cert_chain(s,
2214 (s->s3->tmp.cert_req == 2)?NULL:s->cert->key->x509);
2218 /* SSL3_ST_CW_CERT_D */
2219 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2222 #define has_bits(i,m) (((i)&(m)) == (m))
2224 static int ssl3_check_cert_and_algorithm(SSL *s)
2228 EVP_PKEY *pkey=NULL;
2230 #ifndef OPENSSL_NO_RSA
2233 #ifndef OPENSSL_NO_DH
2237 sc=s->session->sess_cert;
2241 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,ERR_R_INTERNAL_ERROR);
2245 algs=s->s3->tmp.new_cipher->algorithms;
2247 /* we don't have a certificate */
2248 if (algs & (SSL_aDH|SSL_aNULL|SSL_aKRB5))
2251 #ifndef OPENSSL_NO_RSA
2252 rsa=s->session->sess_cert->peer_rsa_tmp;
2254 #ifndef OPENSSL_NO_DH
2255 dh=s->session->sess_cert->peer_dh_tmp;
2258 /* This is the passed certificate */
2260 idx=sc->peer_cert_type;
2261 #ifndef OPENSSL_NO_ECDH
2262 if (idx == SSL_PKEY_ECC)
2264 if (check_srvr_ecc_cert_and_alg(sc->peer_pkeys[idx].x509,
2265 s->s3->tmp.new_cipher) == 0)
2266 { /* check failed */
2267 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_BAD_ECC_CERT);
2276 pkey=X509_get_pubkey(sc->peer_pkeys[idx].x509);
2277 i=X509_certificate_type(sc->peer_pkeys[idx].x509,pkey);
2278 EVP_PKEY_free(pkey);
2281 /* Check that we have a certificate if we require one */
2282 if ((algs & SSL_aRSA) && !has_bits(i,EVP_PK_RSA|EVP_PKT_SIGN))
2284 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_SIGNING_CERT);
2287 #ifndef OPENSSL_NO_DSA
2288 else if ((algs & SSL_aDSS) && !has_bits(i,EVP_PK_DSA|EVP_PKT_SIGN))
2290 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DSA_SIGNING_CERT);
2294 #ifndef OPENSSL_NO_RSA
2295 if ((algs & SSL_kRSA) &&
2296 !(has_bits(i,EVP_PK_RSA|EVP_PKT_ENC) || (rsa != NULL)))
2298 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_ENCRYPTING_CERT);
2302 #ifndef OPENSSL_NO_DH
2303 if ((algs & SSL_kEDH) &&
2304 !(has_bits(i,EVP_PK_DH|EVP_PKT_EXCH) || (dh != NULL)))
2306 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_KEY);
2309 else if ((algs & SSL_kDHr) && !has_bits(i,EVP_PK_DH|EVP_PKS_RSA))
2311 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_RSA_CERT);
2314 #ifndef OPENSSL_NO_DSA
2315 else if ((algs & SSL_kDHd) && !has_bits(i,EVP_PK_DH|EVP_PKS_DSA))
2317 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_DSA_CERT);
2323 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) && !has_bits(i,EVP_PKT_EXP))
2325 #ifndef OPENSSL_NO_RSA
2326 if (algs & SSL_kRSA)
2329 || RSA_size(rsa) > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2331 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_RSA_KEY);
2337 #ifndef OPENSSL_NO_DH
2338 if (algs & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
2341 || DH_size(dh) > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2343 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_DH_KEY);
2350 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);
2356 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
2362 #ifndef OPENSSL_NO_ECDH
2363 /* This is the complement of nid2curve_id in s3_srvr.c. */
2364 static int curve_id2nid(int curve_id)
2366 /* ECC curves from draft-ietf-tls-ecc-01.txt (Mar 15, 2001) */
2367 static int nid_list[26] =
2370 NID_sect163k1, /* sect163k1 (1) */
2371 NID_sect163r1, /* sect163r1 (2) */
2372 NID_sect163r2, /* sect163r2 (3) */
2373 NID_sect193r1, /* sect193r1 (4) */
2374 NID_sect193r2, /* sect193r2 (5) */
2375 NID_sect233k1, /* sect233k1 (6) */
2376 NID_sect233r1, /* sect233r1 (7) */
2377 NID_sect239k1, /* sect239k1 (8) */
2378 NID_sect283k1, /* sect283k1 (9) */
2379 NID_sect283r1, /* sect283r1 (10) */
2380 NID_sect409k1, /* sect409k1 (11) */
2381 NID_sect409r1, /* sect409r1 (12) */
2382 NID_sect571k1, /* sect571k1 (13) */
2383 NID_sect571r1, /* sect571r1 (14) */
2384 NID_secp160k1, /* secp160k1 (15) */
2385 NID_secp160r1, /* secp160r1 (16) */
2386 NID_secp160r2, /* secp160r2 (17) */
2387 NID_secp192k1, /* secp192k1 (18) */
2388 NID_X9_62_prime192v1, /* secp192r1 (19) */
2389 NID_secp224k1, /* secp224k1 (20) */
2390 NID_secp224r1, /* secp224r1 (21) */
2391 NID_secp256k1, /* secp256k1 (22) */
2392 NID_X9_62_prime256v1, /* secp256r1 (23) */
2393 NID_secp384r1, /* secp384r1 (24) */
2394 NID_secp521r1 /* secp521r1 (25) */
2397 if ((curve_id < 1) || (curve_id > 25)) return 0;
2399 return nid_list[curve_id];