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;
182 memcpy((char *)&SSLv3_client_data,(char *)sslv3_base_method(),
184 SSLv3_client_data.ssl_connect=ssl3_connect;
185 SSLv3_client_data.get_ssl_method=ssl3_get_client_method;
187 return(&SSLv3_client_data);
190 int ssl3_connect(SSL *s)
193 unsigned long Time=time(NULL),l;
195 void (*cb)(const SSL *ssl,int type,int val)=NULL;
197 int new_state,state,skip=0;;
199 RAND_add(&Time,sizeof(Time),0);
203 if (s->info_callback != NULL)
205 else if (s->ctx->info_callback != NULL)
206 cb=s->ctx->info_callback;
209 if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
217 case SSL_ST_RENEGOTIATE:
219 s->state=SSL_ST_CONNECT;
220 s->ctx->stats.sess_connect_renegotiate++;
224 case SSL_ST_BEFORE|SSL_ST_CONNECT:
225 case SSL_ST_OK|SSL_ST_CONNECT:
228 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
230 if ((s->version & 0xff00 ) != 0x0300)
232 SSLerr(SSL_F_SSL3_CONNECT, ERR_R_INTERNAL_ERROR);
237 /* s->version=SSL3_VERSION; */
238 s->type=SSL_ST_CONNECT;
240 if (s->init_buf == NULL)
242 if ((buf=BUF_MEM_new()) == NULL)
247 if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))
255 if (!ssl3_setup_buffers(s)) { ret= -1; goto end; }
257 /* setup buffing BIO */
258 if (!ssl_init_wbio_buffer(s,0)) { ret= -1; goto end; }
260 /* don't push the buffering BIO quite yet */
262 ssl3_init_finished_mac(s);
264 s->state=SSL3_ST_CW_CLNT_HELLO_A;
265 s->ctx->stats.sess_connect++;
269 case SSL3_ST_CW_CLNT_HELLO_A:
270 case SSL3_ST_CW_CLNT_HELLO_B:
273 ret=ssl3_client_hello(s);
274 if (ret <= 0) goto end;
275 s->state=SSL3_ST_CR_SRVR_HELLO_A;
278 /* turn on buffering for the next lot of output */
279 if (s->bbio != s->wbio)
280 s->wbio=BIO_push(s->bbio,s->wbio);
284 case SSL3_ST_CR_SRVR_HELLO_A:
285 case SSL3_ST_CR_SRVR_HELLO_B:
286 ret=ssl3_get_server_hello(s);
287 if (ret <= 0) goto end;
289 s->state=SSL3_ST_CR_FINISHED_A;
291 s->state=SSL3_ST_CR_CERT_A;
295 case SSL3_ST_CR_CERT_A:
296 case SSL3_ST_CR_CERT_B:
297 /* Check if it is anon DH/ECDH */
298 if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
300 ret=ssl3_get_server_certificate(s);
301 if (ret <= 0) goto end;
305 s->state=SSL3_ST_CR_KEY_EXCH_A;
309 case SSL3_ST_CR_KEY_EXCH_A:
310 case SSL3_ST_CR_KEY_EXCH_B:
311 ret=ssl3_get_key_exchange(s);
312 if (ret <= 0) goto end;
313 s->state=SSL3_ST_CR_CERT_REQ_A;
316 /* at this point we check that we have the
317 * required stuff from the server */
318 if (!ssl3_check_cert_and_algorithm(s))
325 case SSL3_ST_CR_CERT_REQ_A:
326 case SSL3_ST_CR_CERT_REQ_B:
327 ret=ssl3_get_certificate_request(s);
328 if (ret <= 0) goto end;
329 s->state=SSL3_ST_CR_SRVR_DONE_A;
333 case SSL3_ST_CR_SRVR_DONE_A:
334 case SSL3_ST_CR_SRVR_DONE_B:
335 ret=ssl3_get_server_done(s);
336 if (ret <= 0) goto end;
337 if (s->s3->tmp.cert_req)
338 s->state=SSL3_ST_CW_CERT_A;
340 s->state=SSL3_ST_CW_KEY_EXCH_A;
345 case SSL3_ST_CW_CERT_A:
346 case SSL3_ST_CW_CERT_B:
347 case SSL3_ST_CW_CERT_C:
348 case SSL3_ST_CW_CERT_D:
349 ret=ssl3_send_client_certificate(s);
350 if (ret <= 0) goto end;
351 s->state=SSL3_ST_CW_KEY_EXCH_A;
355 case SSL3_ST_CW_KEY_EXCH_A:
356 case SSL3_ST_CW_KEY_EXCH_B:
357 ret=ssl3_send_client_key_exchange(s);
358 if (ret <= 0) goto end;
359 l=s->s3->tmp.new_cipher->algorithms;
360 /* EAY EAY EAY need to check for DH fix cert
362 /* For TLS, cert_req is set to 2, so a cert chain
363 * of nothing is sent, but no verify packet is sent */
364 /* XXX: For now, we do not support client
365 * authentication in ECDH cipher suites with
366 * ECDH (rather than ECDSA) certificates.
367 * We need to skip the certificate verify
368 * message when client's ECDH public key is sent
369 * inside the client certificate.
371 if (s->s3->tmp.cert_req == 1)
373 s->state=SSL3_ST_CW_CERT_VRFY_A;
377 s->state=SSL3_ST_CW_CHANGE_A;
378 s->s3->change_cipher_spec=0;
384 case SSL3_ST_CW_CERT_VRFY_A:
385 case SSL3_ST_CW_CERT_VRFY_B:
386 ret=ssl3_send_client_verify(s);
387 if (ret <= 0) goto end;
388 s->state=SSL3_ST_CW_CHANGE_A;
390 s->s3->change_cipher_spec=0;
393 case SSL3_ST_CW_CHANGE_A:
394 case SSL3_ST_CW_CHANGE_B:
395 ret=ssl3_send_change_cipher_spec(s,
396 SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B);
397 if (ret <= 0) goto end;
398 s->state=SSL3_ST_CW_FINISHED_A;
401 s->session->cipher=s->s3->tmp.new_cipher;
402 if (s->s3->tmp.new_compression == NULL)
403 s->session->compress_meth=0;
405 s->session->compress_meth=
406 s->s3->tmp.new_compression->id;
407 if (!s->method->ssl3_enc->setup_key_block(s))
413 if (!s->method->ssl3_enc->change_cipher_state(s,
414 SSL3_CHANGE_CIPHER_CLIENT_WRITE))
422 case SSL3_ST_CW_FINISHED_A:
423 case SSL3_ST_CW_FINISHED_B:
424 ret=ssl3_send_finished(s,
425 SSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B,
426 s->method->ssl3_enc->client_finished_label,
427 s->method->ssl3_enc->client_finished_label_len);
428 if (ret <= 0) goto end;
429 s->state=SSL3_ST_CW_FLUSH;
432 s->s3->flags&= ~SSL3_FLAGS_POP_BUFFER;
435 s->s3->tmp.next_state=SSL_ST_OK;
436 if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED)
439 s->s3->flags|=SSL3_FLAGS_POP_BUFFER;
440 s->s3->delay_buf_pop_ret=0;
445 s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A;
450 case SSL3_ST_CR_FINISHED_A:
451 case SSL3_ST_CR_FINISHED_B:
453 ret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A,
454 SSL3_ST_CR_FINISHED_B);
455 if (ret <= 0) goto end;
458 s->state=SSL3_ST_CW_CHANGE_A;
464 case SSL3_ST_CW_FLUSH:
465 /* number of bytes to be flushed */
466 num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);
469 s->rwstate=SSL_WRITING;
470 num1=BIO_flush(s->wbio);
471 if (num1 <= 0) { ret= -1; goto end; }
472 s->rwstate=SSL_NOTHING;
475 s->state=s->s3->tmp.next_state;
479 /* clean a few things up */
480 ssl3_cleanup_key_block(s);
482 if (s->init_buf != NULL)
484 BUF_MEM_free(s->init_buf);
488 /* If we are not 'joining' the last two packets,
489 * remove the buffering now */
490 if (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER))
491 ssl_free_wbio_buffer(s);
492 /* else do it later in ssl3_write */
497 ssl_update_cache(s,SSL_SESS_CACHE_CLIENT);
498 if (s->hit) s->ctx->stats.sess_hit++;
502 s->handshake_func=ssl3_connect;
503 s->ctx->stats.sess_connect_good++;
505 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);
511 SSLerr(SSL_F_SSL3_CONNECT,SSL_R_UNKNOWN_STATE);
517 /* did we do anything */
518 if (!s->s3->tmp.reuse_message && !skip)
522 if ((ret=BIO_flush(s->wbio)) <= 0)
526 if ((cb != NULL) && (s->state != state))
530 cb(s,SSL_CB_CONNECT_LOOP,1);
539 cb(s,SSL_CB_CONNECT_EXIT,ret);
544 static int ssl3_client_hello(SSL *s)
549 unsigned long Time,l;
552 buf=(unsigned char *)s->init_buf->data;
553 if (s->state == SSL3_ST_CW_CLNT_HELLO_A)
555 if ((s->session == NULL) ||
556 (s->session->ssl_version != s->version) ||
557 (s->session->not_resumable))
559 if (!ssl_get_new_session(s,0))
562 /* else use the pre-loaded session */
564 p=s->s3->client_random;
565 Time=time(NULL); /* Time */
567 RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-sizeof(Time));
569 /* Do the message type and length last */
572 *(p++)=s->version>>8;
573 *(p++)=s->version&0xff;
574 s->client_version=s->version;
577 memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
584 i=s->session->session_id_length;
588 if (i > sizeof s->session->session_id)
590 SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
593 memcpy(p,s->session->session_id,i);
597 /* Ciphers supported */
598 i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]));
601 SSLerr(SSL_F_SSL3_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
608 if (s->ctx->comp_methods == NULL)
611 j=sk_SSL_COMP_num(s->ctx->comp_methods);
615 comp=sk_SSL_COMP_value(s->ctx->comp_methods,i);
618 *(p++)=0; /* Add the NULL method */
622 *(d++)=SSL3_MT_CLIENT_HELLO;
625 s->state=SSL3_ST_CW_CLNT_HELLO_B;
626 /* number of bytes to write */
631 /* SSL3_ST_CW_CLNT_HELLO_B */
632 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
637 static int ssl3_get_server_hello(SSL *s)
639 STACK_OF(SSL_CIPHER) *sk;
647 n=ssl3_get_message(s,
648 SSL3_ST_CR_SRVR_HELLO_A,
649 SSL3_ST_CR_SRVR_HELLO_B,
650 SSL3_MT_SERVER_HELLO,
654 if (!ok) return((int)n);
655 d=p=(unsigned char *)s->init_msg;
657 if ((p[0] != (s->version>>8)) || (p[1] != (s->version&0xff)))
659 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_SSL_VERSION);
660 s->version=(s->version&0xff00)|p[1];
661 al=SSL_AD_PROTOCOL_VERSION;
666 /* load the server hello data */
667 /* load the server random */
668 memcpy(s->s3->server_random,p,SSL3_RANDOM_SIZE);
671 /* get the session-id */
674 if(j > sizeof s->session->session_id)
676 al=SSL_AD_ILLEGAL_PARAMETER;
677 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,
678 SSL_R_SSL3_SESSION_ID_TOO_LONG);
682 if ((j != 0) && (j != SSL3_SESSION_ID_SIZE))
684 /* SSLref returns 16 :-( */
685 if (j < SSL2_SSL_SESSION_ID_LENGTH)
687 al=SSL_AD_ILLEGAL_PARAMETER;
688 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SSL3_SESSION_ID_TOO_SHORT);
692 if (j != 0 && j == s->session->session_id_length
693 && memcmp(p,s->session->session_id,j) == 0)
695 if(s->sid_ctx_length != s->session->sid_ctx_length
696 || memcmp(s->session->sid_ctx,s->sid_ctx,s->sid_ctx_length))
698 al=SSL_AD_ILLEGAL_PARAMETER;
699 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);
704 else /* a miss or crap from the other end */
706 /* If we were trying for session-id reuse, make a new
707 * SSL_SESSION so we don't stuff up other people */
709 if (s->session->session_id_length > 0)
711 if (!ssl_get_new_session(s,0))
713 al=SSL_AD_INTERNAL_ERROR;
717 s->session->session_id_length=j;
718 memcpy(s->session->session_id,p,j); /* j could be 0 */
721 c=ssl_get_cipher_by_char(s,p);
725 al=SSL_AD_ILLEGAL_PARAMETER;
726 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNKNOWN_CIPHER_RETURNED);
729 p+=ssl_put_cipher_by_char(s,NULL,NULL);
731 sk=ssl_get_ciphers_by_id(s);
732 i=sk_SSL_CIPHER_find(sk,c);
735 /* we did not say we would use this cipher */
736 al=SSL_AD_ILLEGAL_PARAMETER;
737 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_CIPHER_RETURNED);
741 if (s->hit && (s->session->cipher != c))
744 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG))
746 al=SSL_AD_ILLEGAL_PARAMETER;
747 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED);
751 s->s3->tmp.new_cipher=c;
753 /* lets get the compression algorithm */
759 comp=ssl3_comp_find(s->ctx->comp_methods,j);
761 if ((j != 0) && (comp == NULL))
763 al=SSL_AD_ILLEGAL_PARAMETER;
764 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
769 s->s3->tmp.new_compression=comp;
774 /* wrong packet length */
775 al=SSL_AD_DECODE_ERROR;
776 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_PACKET_LENGTH);
782 ssl3_send_alert(s,SSL3_AL_FATAL,al);
787 static int ssl3_get_server_certificate(SSL *s)
790 unsigned long n,nc,llen,l;
792 unsigned char *p,*d,*q;
793 STACK_OF(X509) *sk=NULL;
796 int need_cert = 1; /* VRS: 0=> will allow null cert if auth == KRB5 */
798 n=ssl3_get_message(s,
805 if (!ok) return((int)n);
807 if (s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE)
809 s->s3->tmp.reuse_message=1;
813 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE)
815 al=SSL_AD_UNEXPECTED_MESSAGE;
816 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_BAD_MESSAGE_TYPE);
819 d=p=(unsigned char *)s->init_msg;
821 if ((sk=sk_X509_new_null()) == NULL)
823 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
830 al=SSL_AD_DECODE_ERROR;
831 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_LENGTH_MISMATCH);
834 for (nc=0; nc<llen; )
839 al=SSL_AD_DECODE_ERROR;
840 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
845 x=d2i_X509(NULL,&q,l);
848 al=SSL_AD_BAD_CERTIFICATE;
849 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_ASN1_LIB);
854 al=SSL_AD_DECODE_ERROR;
855 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
858 if (!sk_X509_push(sk,x))
860 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
868 i=ssl_verify_cert_chain(s,sk);
869 if ((s->verify_mode != SSL_VERIFY_NONE) && (!i)
870 #ifndef OPENSSL_NO_KRB5
871 && (s->s3->tmp.new_cipher->algorithms & (SSL_MKEY_MASK|SSL_AUTH_MASK))
872 != (SSL_aKRB5|SSL_kKRB5)
873 #endif /* OPENSSL_NO_KRB5 */
876 al=ssl_verify_alarm_type(s->verify_result);
877 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED);
880 ERR_clear_error(); /* but we keep s->verify_result */
882 sc=ssl_sess_cert_new();
883 if (sc == NULL) goto err;
885 if (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert);
886 s->session->sess_cert=sc;
889 /* Inconsistency alert: cert_chain does include the peer's
890 * certificate, which we don't include in s3_srvr.c */
891 x=sk_X509_value(sk,0);
893 /* VRS 19990621: possible memory leak; sk=null ==> !sk_pop_free() @end*/
895 pkey=X509_get_pubkey(x);
897 /* VRS: allow null cert if auth == KRB5 */
898 need_cert = ((s->s3->tmp.new_cipher->algorithms
899 & (SSL_MKEY_MASK|SSL_AUTH_MASK))
900 == (SSL_aKRB5|SSL_kKRB5))? 0: 1;
903 printf("pkey,x = %p, %p\n", pkey,x);
904 printf("ssl_cert_type(x,pkey) = %d\n", ssl_cert_type(x,pkey));
905 printf("cipher, alg, nc = %s, %lx, %d\n", s->s3->tmp.new_cipher->name,
906 s->s3->tmp.new_cipher->algorithms, need_cert);
907 #endif /* KSSL_DEBUG */
909 if (need_cert && ((pkey == NULL) || EVP_PKEY_missing_parameters(pkey)))
913 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
914 SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS);
918 i=ssl_cert_type(x,pkey);
919 if (need_cert && i < 0)
923 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
924 SSL_R_UNKNOWN_CERTIFICATE_TYPE);
930 sc->peer_cert_type=i;
931 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
932 /* Why would the following ever happen?
933 * We just created sc a couple of lines ago. */
934 if (sc->peer_pkeys[i].x509 != NULL)
935 X509_free(sc->peer_pkeys[i].x509);
936 sc->peer_pkeys[i].x509=x;
937 sc->peer_key= &(sc->peer_pkeys[i]);
939 if (s->session->peer != NULL)
940 X509_free(s->session->peer);
941 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
946 sc->peer_cert_type=i;
949 if (s->session->peer != NULL)
950 X509_free(s->session->peer);
951 s->session->peer=NULL;
953 s->session->verify_result = s->verify_result;
961 ssl3_send_alert(s,SSL3_AL_FATAL,al);
966 sk_X509_pop_free(sk,X509_free);
970 static int ssl3_get_key_exchange(SSL *s)
972 #ifndef OPENSSL_NO_RSA
973 unsigned char *q,md_buf[EVP_MAX_MD_SIZE*2];
976 unsigned char *param,*p;
977 int al,i,j,param_len,ok;
980 #ifndef OPENSSL_NO_RSA
983 #ifndef OPENSSL_NO_DH
986 #ifndef OPENSSL_NO_ECDH
988 BN_CTX *bn_ctx = NULL;
989 EC_POINT *srvr_ecpoint = NULL;
991 int encoded_pt_len = 0;
994 /* use same message size as in ssl3_get_certificate_request()
995 * as ServerKeyExchange message may be skipped */
996 n=ssl3_get_message(s,
997 SSL3_ST_CR_KEY_EXCH_A,
998 SSL3_ST_CR_KEY_EXCH_B,
1003 if (!ok) return((int)n);
1005 if (s->s3->tmp.message_type != SSL3_MT_SERVER_KEY_EXCHANGE)
1007 s->s3->tmp.reuse_message=1;
1011 param=p=(unsigned char *)s->init_msg;
1013 if (s->session->sess_cert != NULL)
1015 #ifndef OPENSSL_NO_RSA
1016 if (s->session->sess_cert->peer_rsa_tmp != NULL)
1018 RSA_free(s->session->sess_cert->peer_rsa_tmp);
1019 s->session->sess_cert->peer_rsa_tmp=NULL;
1022 #ifndef OPENSSL_NO_DH
1023 if (s->session->sess_cert->peer_dh_tmp)
1025 DH_free(s->session->sess_cert->peer_dh_tmp);
1026 s->session->sess_cert->peer_dh_tmp=NULL;
1029 #ifndef OPENSSL_NO_ECDH
1030 if (s->session->sess_cert->peer_ecdh_tmp)
1032 EC_KEY_free(s->session->sess_cert->peer_ecdh_tmp);
1033 s->session->sess_cert->peer_ecdh_tmp=NULL;
1039 s->session->sess_cert=ssl_sess_cert_new();
1043 alg=s->s3->tmp.new_cipher->algorithms;
1044 EVP_MD_CTX_init(&md_ctx);
1046 #ifndef OPENSSL_NO_RSA
1049 if ((rsa=RSA_new()) == NULL)
1051 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1058 al=SSL_AD_DECODE_ERROR;
1059 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_MODULUS_LENGTH);
1062 if (!(rsa->n=BN_bin2bn(p,i,rsa->n)))
1064 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1073 al=SSL_AD_DECODE_ERROR;
1074 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_E_LENGTH);
1077 if (!(rsa->e=BN_bin2bn(p,i,rsa->e)))
1079 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1085 /* this should be because we are using an export cipher */
1087 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1090 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1093 s->session->sess_cert->peer_rsa_tmp=rsa;
1096 #else /* OPENSSL_NO_RSA */
1100 #ifndef OPENSSL_NO_DH
1101 else if (alg & SSL_kEDH)
1103 if ((dh=DH_new()) == NULL)
1105 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_DH_LIB);
1112 al=SSL_AD_DECODE_ERROR;
1113 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_P_LENGTH);
1116 if (!(dh->p=BN_bin2bn(p,i,NULL)))
1118 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1127 al=SSL_AD_DECODE_ERROR;
1128 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_G_LENGTH);
1131 if (!(dh->g=BN_bin2bn(p,i,NULL)))
1133 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1142 al=SSL_AD_DECODE_ERROR;
1143 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_PUB_KEY_LENGTH);
1146 if (!(dh->pub_key=BN_bin2bn(p,i,NULL)))
1148 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1154 #ifndef OPENSSL_NO_RSA
1156 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1161 #ifndef OPENSSL_NO_DSA
1162 else if (alg & SSL_aDSS)
1163 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].x509);
1165 /* else anonymous DH, so no certificate or pkey. */
1167 s->session->sess_cert->peer_dh_tmp=dh;
1170 else if ((alg & SSL_kDHr) || (alg & SSL_kDHd))
1172 al=SSL_AD_ILLEGAL_PARAMETER;
1173 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
1176 #endif /* !OPENSSL_NO_DH */
1178 #ifndef OPENSSL_NO_ECDH
1179 else if (alg & SSL_kECDHE)
1181 if ((ecdh=EC_KEY_new()) == NULL)
1183 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1187 /* Extract elliptic curve parameters and the
1188 * server's ephemeral ECDH public key.
1189 * Keep accumulating lengths of various components in
1190 * param_len and make sure it never exceeds n.
1193 /* XXX: For now we only support named (not generic) curves
1194 * and the ECParameters in this case is just two bytes.
1197 if ((param_len > n) ||
1198 (*p != NAMED_CURVE_TYPE) ||
1199 ((curve_nid = curve_id2nid(*(p + 1))) == 0))
1201 al=SSL_AD_INTERNAL_ERROR;
1202 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS);
1206 if (!(ecdh->group=EC_GROUP_new_by_nid(curve_nid)))
1208 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
1212 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
1213 (EC_GROUP_get_degree(ecdh->group) > 163))
1215 al=SSL_AD_EXPORT_RESTRICTION;
1216 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
1222 /* Next, get the encoded ECPoint */
1223 if (((srvr_ecpoint = EC_POINT_new(ecdh->group)) == NULL) ||
1224 ((bn_ctx = BN_CTX_new()) == NULL))
1226 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1230 encoded_pt_len = *p; /* length of encoded point */
1232 param_len += (1 + encoded_pt_len);
1233 if ((param_len > n) ||
1234 (EC_POINT_oct2point(ecdh->group, srvr_ecpoint,
1235 p, encoded_pt_len, bn_ctx) == 0))
1237 al=SSL_AD_DECODE_ERROR;
1238 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_ECPOINT);
1245 /* The ECC/TLS specification does not mention
1246 * the use of DSA to sign ECParameters in the server
1247 * key exchange message. We do support RSA and ECDSA.
1250 #ifndef OPENSSL_NO_RSA
1251 else if (alg & SSL_aRSA)
1252 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1254 #ifndef OPENSSL_NO_ECDSA
1255 else if (alg & SSL_aECDSA)
1256 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
1258 /* else anonymous ECDH, so no certificate or pkey. */
1259 ecdh->pub_key = srvr_ecpoint;
1260 s->session->sess_cert->peer_ecdh_tmp=ecdh;
1262 BN_CTX_free(bn_ctx);
1263 srvr_ecpoint = NULL;
1265 else if (alg & SSL_kECDH)
1267 al=SSL_AD_UNEXPECTED_MESSAGE;
1268 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNEXPECTED_MESSAGE);
1271 #endif /* !OPENSSL_NO_ECDH */
1274 al=SSL_AD_HANDSHAKE_FAILURE;
1275 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
1280 /* p points to the next byte, there are 'n' bytes left */
1282 /* if it was signed, check the signature */
1287 j=EVP_PKEY_size(pkey);
1289 if ((i != n) || (n > j) || (n <= 0))
1291 /* wrong packet length */
1292 al=SSL_AD_DECODE_ERROR;
1293 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_WRONG_SIGNATURE_LENGTH);
1297 #ifndef OPENSSL_NO_RSA
1298 if (pkey->type == EVP_PKEY_RSA)
1304 for (num=2; num > 0; num--)
1306 EVP_DigestInit_ex(&md_ctx,(num == 2)
1307 ?s->ctx->md5:s->ctx->sha1, NULL);
1308 EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1309 EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1310 EVP_DigestUpdate(&md_ctx,param,param_len);
1311 EVP_DigestFinal_ex(&md_ctx,q,(unsigned int *)&i);
1315 i=RSA_verify(NID_md5_sha1, md_buf, j, p, n,
1319 al=SSL_AD_DECRYPT_ERROR;
1320 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_DECRYPT);
1326 al=SSL_AD_DECRYPT_ERROR;
1327 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1333 #ifndef OPENSSL_NO_DSA
1334 if (pkey->type == EVP_PKEY_DSA)
1337 EVP_VerifyInit_ex(&md_ctx,EVP_dss1(), NULL);
1338 EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1339 EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1340 EVP_VerifyUpdate(&md_ctx,param,param_len);
1341 if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey))
1344 al=SSL_AD_DECRYPT_ERROR;
1345 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1351 #ifndef OPENSSL_NO_ECDSA
1352 if (pkey->type == EVP_PKEY_EC)
1354 /* let's do ECDSA */
1355 EVP_VerifyInit_ex(&md_ctx,EVP_ecdsa(), NULL);
1356 EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1357 EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1358 EVP_VerifyUpdate(&md_ctx,param,param_len);
1359 if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey))
1362 al=SSL_AD_DECRYPT_ERROR;
1363 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1370 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1376 /* still data left over */
1377 if (!(alg & SSL_aNULL))
1379 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1384 al=SSL_AD_DECODE_ERROR;
1385 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_EXTRA_DATA_IN_MESSAGE);
1389 EVP_PKEY_free(pkey);
1390 EVP_MD_CTX_cleanup(&md_ctx);
1393 ssl3_send_alert(s,SSL3_AL_FATAL,al);
1395 EVP_PKEY_free(pkey);
1396 #ifndef OPENSSL_NO_RSA
1400 #ifndef OPENSSL_NO_DH
1404 #ifndef OPENSSL_NO_ECDH
1405 BN_CTX_free(bn_ctx);
1406 EC_POINT_free(srvr_ecpoint);
1410 EVP_MD_CTX_cleanup(&md_ctx);
1414 static int ssl3_get_certificate_request(SSL *s)
1417 unsigned long n,nc,l;
1418 unsigned int llen,ctype_num,i;
1420 unsigned char *p,*d,*q;
1421 STACK_OF(X509_NAME) *ca_sk=NULL;
1423 n=ssl3_get_message(s,
1424 SSL3_ST_CR_CERT_REQ_A,
1425 SSL3_ST_CR_CERT_REQ_B,
1430 if (!ok) return((int)n);
1432 s->s3->tmp.cert_req=0;
1434 if (s->s3->tmp.message_type == SSL3_MT_SERVER_DONE)
1436 s->s3->tmp.reuse_message=1;
1440 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE_REQUEST)
1442 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
1443 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_WRONG_MESSAGE_TYPE);
1447 /* TLS does not like anon-DH with client cert */
1448 if (s->version > SSL3_VERSION)
1450 l=s->s3->tmp.new_cipher->algorithms;
1453 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
1454 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER);
1459 d=p=(unsigned char *)s->init_msg;
1461 if ((ca_sk=sk_X509_NAME_new(ca_dn_cmp)) == NULL)
1463 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
1467 /* get the certificate types */
1469 if (ctype_num > SSL3_CT_NUMBER)
1470 ctype_num=SSL3_CT_NUMBER;
1471 for (i=0; i<ctype_num; i++)
1472 s->s3->tmp.ctype[i]= p[i];
1475 /* get the CA RDNs */
1480 out=fopen("/tmp/vsign.der","w");
1481 fwrite(p,1,llen,out);
1486 if ((llen+ctype_num+2+1) != n)
1488 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1489 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_LENGTH_MISMATCH);
1493 for (nc=0; nc<llen; )
1496 if ((l+nc+2) > llen)
1498 if ((s->options & SSL_OP_NETSCAPE_CA_DN_BUG))
1499 goto cont; /* netscape bugs */
1500 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1501 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_TOO_LONG);
1507 if ((xn=d2i_X509_NAME(NULL,&q,l)) == NULL)
1509 /* If netscape tolerance is on, ignore errors */
1510 if (s->options & SSL_OP_NETSCAPE_CA_DN_BUG)
1514 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1515 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_ASN1_LIB);
1522 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1523 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_LENGTH_MISMATCH);
1526 if (!sk_X509_NAME_push(ca_sk,xn))
1528 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
1542 /* we should setup a certificate to return.... */
1543 s->s3->tmp.cert_req=1;
1544 s->s3->tmp.ctype_num=ctype_num;
1545 if (s->s3->tmp.ca_names != NULL)
1546 sk_X509_NAME_pop_free(s->s3->tmp.ca_names,X509_NAME_free);
1547 s->s3->tmp.ca_names=ca_sk;
1552 if (ca_sk != NULL) sk_X509_NAME_pop_free(ca_sk,X509_NAME_free);
1556 static int ca_dn_cmp(const X509_NAME * const *a, const X509_NAME * const *b)
1558 return(X509_NAME_cmp(*a,*b));
1561 static int ssl3_get_server_done(SSL *s)
1566 n=ssl3_get_message(s,
1567 SSL3_ST_CR_SRVR_DONE_A,
1568 SSL3_ST_CR_SRVR_DONE_B,
1569 SSL3_MT_SERVER_DONE,
1570 30, /* should be very small, like 0 :-) */
1573 if (!ok) return((int)n);
1576 /* should contain no data */
1577 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1578 SSLerr(SSL_F_SSL3_GET_SERVER_DONE,SSL_R_LENGTH_MISMATCH);
1585 static int ssl3_send_client_key_exchange(SSL *s)
1587 unsigned char *p,*d;
1590 #ifndef OPENSSL_NO_RSA
1592 EVP_PKEY *pkey=NULL;
1594 #ifndef OPENSSL_NO_KRB5
1596 #endif /* OPENSSL_NO_KRB5 */
1597 #ifndef OPENSSL_NO_ECDH
1598 EC_KEY *clnt_ecdh = NULL;
1599 EC_POINT *srvr_ecpoint = NULL;
1600 EVP_PKEY *srvr_pub_pkey = NULL;
1601 unsigned char *encodedPoint = NULL;
1602 int encoded_pt_len = 0;
1603 BN_CTX * bn_ctx = NULL;
1606 if (s->state == SSL3_ST_CW_KEY_EXCH_A)
1608 d=(unsigned char *)s->init_buf->data;
1611 l=s->s3->tmp.new_cipher->algorithms;
1613 /* Fool emacs indentation */
1615 #ifndef OPENSSL_NO_RSA
1616 else if (l & SSL_kRSA)
1619 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
1621 if (s->session->sess_cert->peer_rsa_tmp != NULL)
1622 rsa=s->session->sess_cert->peer_rsa_tmp;
1625 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1626 if ((pkey == NULL) ||
1627 (pkey->type != EVP_PKEY_RSA) ||
1628 (pkey->pkey.rsa == NULL))
1630 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1634 EVP_PKEY_free(pkey);
1637 tmp_buf[0]=s->client_version>>8;
1638 tmp_buf[1]=s->client_version&0xff;
1639 if (RAND_bytes(&(tmp_buf[2]),SSL_MAX_MASTER_KEY_LENGTH-2) <= 0)
1642 s->session->master_key_length=SSL_MAX_MASTER_KEY_LENGTH;
1645 /* Fix buf for TLS and beyond */
1646 if (s->version > SSL3_VERSION)
1648 n=RSA_public_encrypt(SSL_MAX_MASTER_KEY_LENGTH,
1649 tmp_buf,p,rsa,RSA_PKCS1_PADDING);
1651 if (s->options & SSL_OP_PKCS1_CHECK_1) p[1]++;
1652 if (s->options & SSL_OP_PKCS1_CHECK_2) tmp_buf[0]=0x70;
1656 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_BAD_RSA_ENCRYPT);
1660 /* Fix buf for TLS and beyond */
1661 if (s->version > SSL3_VERSION)
1667 s->session->master_key_length=
1668 s->method->ssl3_enc->generate_master_secret(s,
1669 s->session->master_key,
1670 tmp_buf,SSL_MAX_MASTER_KEY_LENGTH);
1671 memset(tmp_buf,0,SSL_MAX_MASTER_KEY_LENGTH);
1674 #ifndef OPENSSL_NO_KRB5
1675 else if (l & SSL_kKRB5)
1677 krb5_error_code krb5rc;
1678 KSSL_CTX *kssl_ctx = s->kssl_ctx;
1679 /* krb5_data krb5_ap_req; */
1680 krb5_data *enc_ticket;
1681 krb5_data authenticator, *authp = NULL;
1682 EVP_CIPHER_CTX ciph_ctx;
1683 EVP_CIPHER *enc = NULL;
1684 unsigned char iv[EVP_MAX_IV_LENGTH];
1685 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
1686 unsigned char epms[SSL_MAX_MASTER_KEY_LENGTH
1687 + EVP_MAX_IV_LENGTH];
1688 int padl, outl = sizeof(epms);
1690 EVP_CIPHER_CTX_init(&ciph_ctx);
1693 printf("ssl3_send_client_key_exchange(%lx & %lx)\n",
1695 #endif /* KSSL_DEBUG */
1699 if (KRB5SENDAUTH) authp = &authenticator;
1700 #endif /* KRB5SENDAUTH */
1702 krb5rc = kssl_cget_tkt(kssl_ctx, &enc_ticket, authp,
1704 enc = kssl_map_enc(kssl_ctx->enctype);
1709 printf("kssl_cget_tkt rtn %d\n", krb5rc);
1710 if (krb5rc && kssl_err.text)
1711 printf("kssl_cget_tkt kssl_err=%s\n", kssl_err.text);
1713 #endif /* KSSL_DEBUG */
1717 ssl3_send_alert(s,SSL3_AL_FATAL,
1718 SSL_AD_HANDSHAKE_FAILURE);
1719 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1724 /* 20010406 VRS - Earlier versions used KRB5 AP_REQ
1725 ** in place of RFC 2712 KerberosWrapper, as in:
1727 ** Send ticket (copy to *p, set n = length)
1728 ** n = krb5_ap_req.length;
1729 ** memcpy(p, krb5_ap_req.data, krb5_ap_req.length);
1730 ** if (krb5_ap_req.data)
1731 ** kssl_krb5_free_data_contents(NULL,&krb5_ap_req);
1733 ** Now using real RFC 2712 KerberosWrapper
1734 ** (Thanks to Simon Wilkinson <sxw@sxw.org.uk>)
1735 ** Note: 2712 "opaque" types are here replaced
1736 ** with a 2-byte length followed by the value.
1738 ** KerberosWrapper= xx xx asn1ticket 0 0 xx xx encpms
1739 ** Where "xx xx" = length bytes. Shown here with
1740 ** optional authenticator omitted.
1743 /* KerberosWrapper.Ticket */
1744 s2n(enc_ticket->length,p);
1745 memcpy(p, enc_ticket->data, enc_ticket->length);
1746 p+= enc_ticket->length;
1747 n = enc_ticket->length + 2;
1749 /* KerberosWrapper.Authenticator */
1750 if (authp && authp->length)
1752 s2n(authp->length,p);
1753 memcpy(p, authp->data, authp->length);
1755 n+= authp->length + 2;
1763 s2n(0,p);/* null authenticator length */
1767 if (RAND_bytes(tmp_buf,SSL_MAX_MASTER_KEY_LENGTH) <= 0)
1770 /* 20010420 VRS. Tried it this way; failed.
1771 ** EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,NULL);
1772 ** EVP_CIPHER_CTX_set_key_length(&ciph_ctx,
1773 ** kssl_ctx->length);
1774 ** EVP_EncryptInit_ex(&ciph_ctx,NULL, key,iv);
1777 memset(iv, 0, EVP_MAX_IV_LENGTH); /* per RFC 1510 */
1778 EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,
1780 EVP_EncryptUpdate(&ciph_ctx,epms,&outl,tmp_buf,
1781 SSL_MAX_MASTER_KEY_LENGTH);
1782 EVP_EncryptFinal_ex(&ciph_ctx,&(epms[outl]),&padl);
1784 if (outl > sizeof epms)
1786 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
1789 EVP_CIPHER_CTX_cleanup(&ciph_ctx);
1791 /* KerberosWrapper.EncryptedPreMasterSecret */
1793 memcpy(p, epms, outl);
1797 s->session->master_key_length=
1798 s->method->ssl3_enc->generate_master_secret(s,
1799 s->session->master_key,
1800 tmp_buf, SSL_MAX_MASTER_KEY_LENGTH);
1802 memset(tmp_buf, 0, SSL_MAX_MASTER_KEY_LENGTH);
1803 memset(epms, 0, outl);
1806 #ifndef OPENSSL_NO_DH
1807 else if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
1809 DH *dh_srvr,*dh_clnt;
1811 if (s->session->sess_cert->peer_dh_tmp != NULL)
1812 dh_srvr=s->session->sess_cert->peer_dh_tmp;
1815 /* we get them from the cert */
1816 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1817 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_DH_PARAMETERS);
1821 /* generate a new random key */
1822 if ((dh_clnt=DHparams_dup(dh_srvr)) == NULL)
1824 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1827 if (!DH_generate_key(dh_clnt))
1829 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1833 /* use the 'p' output buffer for the DH key, but
1834 * make sure to clear it out afterwards */
1836 n=DH_compute_key(p,dh_srvr->pub_key,dh_clnt);
1840 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1844 /* generate master key from the result */
1845 s->session->master_key_length=
1846 s->method->ssl3_enc->generate_master_secret(s,
1847 s->session->master_key,p,n);
1851 /* send off the data */
1852 n=BN_num_bytes(dh_clnt->pub_key);
1854 BN_bn2bin(dh_clnt->pub_key,p);
1859 /* perhaps clean things up a bit EAY EAY EAY EAY*/
1863 #ifndef OPENSSL_NO_ECDH
1864 else if ((l & SSL_kECDH) || (l & SSL_kECDHE))
1866 EC_GROUP *srvr_group = NULL;
1867 int ecdh_clnt_cert = 0;
1869 /* Did we send out the client's
1870 * ECDH share for use in premaster
1871 * computation as part of client certificate?
1872 * If so, set ecdh_clnt_cert to 1.
1874 if ((l & SSL_kECDH) && (s->cert != NULL))
1876 /* XXX: For now, we do not support client
1877 * authentication using ECDH certificates.
1878 * To add such support, one needs to add
1879 * code that checks for appropriate
1880 * conditions and sets ecdh_clnt_cert to 1.
1881 * For example, the cert have an ECC
1882 * key on the same curve as the server's
1883 * and the key should be authorized for
1886 * One also needs to add code in ssl3_connect
1887 * to skip sending the certificate verify
1890 * if ((s->cert->key->privatekey != NULL) &&
1891 * (s->cert->key->privatekey->type ==
1892 * EVP_PKEY_EC) && ...)
1893 * ecdh_clnt_cert = 1;
1897 if (s->session->sess_cert->peer_ecdh_tmp != NULL)
1899 srvr_group = s->session->sess_cert-> \
1900 peer_ecdh_tmp->group;
1901 srvr_ecpoint = s->session->sess_cert-> \
1902 peer_ecdh_tmp->pub_key;
1906 /* Get the Server Public Key from Cert */
1907 srvr_pub_pkey = X509_get_pubkey(s->session-> \
1908 sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
1909 if ((srvr_pub_pkey == NULL) ||
1910 (srvr_pub_pkey->type != EVP_PKEY_EC) ||
1911 (srvr_pub_pkey->pkey.eckey == NULL))
1913 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1914 ERR_R_INTERNAL_ERROR);
1918 srvr_group = srvr_pub_pkey->pkey.eckey->group;
1920 srvr_pub_pkey->pkey.eckey->pub_key;
1923 if ((srvr_group == NULL) || (srvr_ecpoint == NULL))
1925 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1926 ERR_R_INTERNAL_ERROR);
1930 if ((clnt_ecdh=EC_KEY_new()) == NULL)
1932 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1936 clnt_ecdh->group = srvr_group;
1939 /* Reuse key info from our certificate
1940 * We only need our private key to perform
1941 * the ECDH computation.
1943 clnt_ecdh->priv_key = BN_dup(s->cert->key-> \
1944 privatekey->pkey.eckey->priv_key);
1948 /* Generate a new ECDH key pair */
1949 if (!(EC_KEY_generate_key(clnt_ecdh)))
1951 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_ECDH_LIB);
1956 /* use the 'p' output buffer for the ECDH key, but
1957 * make sure to clear it out afterwards
1960 n=ECDH_compute_key(p, srvr_ecpoint, clnt_ecdh);
1963 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1968 /* generate master key from the result */
1969 s->session->master_key_length = s->method->ssl3_enc \
1970 -> generate_master_secret(s,
1971 s->session->master_key,
1974 memset(p, 0, n); /* clean up */
1978 /* Send empty client key exch message */
1983 /* First check the size of encoding and
1984 * allocate memory accordingly.
1987 EC_POINT_point2oct(clnt_ecdh->group,
1989 POINT_CONVERSION_UNCOMPRESSED,
1992 encodedPoint = (unsigned char *)
1993 OPENSSL_malloc(encoded_pt_len *
1994 sizeof(unsigned char));
1995 bn_ctx = BN_CTX_new();
1996 if ((encodedPoint == NULL) ||
1999 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
2003 /* Encode the public key */
2004 n = EC_POINT_point2oct(clnt_ecdh->group,
2006 POINT_CONVERSION_UNCOMPRESSED,
2007 encodedPoint, encoded_pt_len, bn_ctx);
2009 *p = n; /* length of encoded point */
2010 /* Encoded point will be copied here */
2012 /* copy the point */
2013 memcpy((unsigned char *)p, encodedPoint, n);
2014 /* increment n to account for length field */
2018 /* Free allocated memory */
2019 BN_CTX_free(bn_ctx);
2020 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2021 if (clnt_ecdh != NULL)
2023 /* group is shared */
2024 clnt_ecdh->group = NULL;
2025 EC_KEY_free(clnt_ecdh);
2027 EVP_PKEY_free(srvr_pub_pkey);
2029 #endif /* !OPENSSL_NO_ECDH */
2032 ssl3_send_alert(s, SSL3_AL_FATAL,
2033 SSL_AD_HANDSHAKE_FAILURE);
2034 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2035 ERR_R_INTERNAL_ERROR);
2039 *(d++)=SSL3_MT_CLIENT_KEY_EXCHANGE;
2042 s->state=SSL3_ST_CW_KEY_EXCH_B;
2043 /* number of bytes to write */
2048 /* SSL3_ST_CW_KEY_EXCH_B */
2049 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2051 #ifndef OPENSSL_NO_ECDH
2052 BN_CTX_free(bn_ctx);
2053 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2054 if (clnt_ecdh != NULL)
2056 /* group is shared */
2057 clnt_ecdh->group = NULL;
2058 EC_KEY_free(clnt_ecdh);
2060 EVP_PKEY_free(srvr_pub_pkey);
2065 static int ssl3_send_client_verify(SSL *s)
2067 unsigned char *p,*d;
2068 unsigned char data[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];
2070 #ifndef OPENSSL_NO_RSA
2074 #ifndef OPENSSL_NO_DSA
2078 if (s->state == SSL3_ST_CW_CERT_VRFY_A)
2080 d=(unsigned char *)s->init_buf->data;
2082 pkey=s->cert->key->privatekey;
2084 s->method->ssl3_enc->cert_verify_mac(s,&(s->s3->finish_dgst2),
2085 &(data[MD5_DIGEST_LENGTH]));
2087 #ifndef OPENSSL_NO_RSA
2088 if (pkey->type == EVP_PKEY_RSA)
2090 s->method->ssl3_enc->cert_verify_mac(s,
2091 &(s->s3->finish_dgst1),&(data[0]));
2092 if (RSA_sign(NID_md5_sha1, data,
2093 MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH,
2094 &(p[2]), &u, pkey->pkey.rsa) <= 0 )
2096 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_RSA_LIB);
2104 #ifndef OPENSSL_NO_DSA
2105 if (pkey->type == EVP_PKEY_DSA)
2107 if (!DSA_sign(pkey->save_type,
2108 &(data[MD5_DIGEST_LENGTH]),
2109 SHA_DIGEST_LENGTH,&(p[2]),
2110 (unsigned int *)&j,pkey->pkey.dsa))
2112 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_DSA_LIB);
2120 #ifndef OPENSSL_NO_ECDSA
2121 if (pkey->type == EVP_PKEY_EC)
2123 if (!ECDSA_sign(pkey->save_type,
2124 &(data[MD5_DIGEST_LENGTH]),
2125 SHA_DIGEST_LENGTH,&(p[2]),
2126 (unsigned int *)&j,pkey->pkey.eckey))
2128 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,
2138 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_INTERNAL_ERROR);
2141 *(d++)=SSL3_MT_CERTIFICATE_VERIFY;
2144 s->init_num=(int)n+4;
2147 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2152 static int ssl3_send_client_certificate(SSL *s)
2155 EVP_PKEY *pkey=NULL;
2159 if (s->state == SSL3_ST_CW_CERT_A)
2161 if ((s->cert == NULL) ||
2162 (s->cert->key->x509 == NULL) ||
2163 (s->cert->key->privatekey == NULL))
2164 s->state=SSL3_ST_CW_CERT_B;
2166 s->state=SSL3_ST_CW_CERT_C;
2169 /* We need to get a client cert */
2170 if (s->state == SSL3_ST_CW_CERT_B)
2172 /* If we get an error, we need to
2173 * ssl->rwstate=SSL_X509_LOOKUP; return(-1);
2174 * We then get retied later */
2176 if (s->ctx->client_cert_cb != NULL)
2177 i=s->ctx->client_cert_cb(s,&(x509),&(pkey));
2180 s->rwstate=SSL_X509_LOOKUP;
2183 s->rwstate=SSL_NOTHING;
2184 if ((i == 1) && (pkey != NULL) && (x509 != NULL))
2186 s->state=SSL3_ST_CW_CERT_B;
2187 if ( !SSL_use_certificate(s,x509) ||
2188 !SSL_use_PrivateKey(s,pkey))
2194 SSLerr(SSL_F_SSL3_SEND_CLIENT_CERTIFICATE,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK);
2197 if (x509 != NULL) X509_free(x509);
2198 if (pkey != NULL) EVP_PKEY_free(pkey);
2201 if (s->version == SSL3_VERSION)
2203 s->s3->tmp.cert_req=0;
2204 ssl3_send_alert(s,SSL3_AL_WARNING,SSL_AD_NO_CERTIFICATE);
2209 s->s3->tmp.cert_req=2;
2213 /* Ok, we have a cert */
2214 s->state=SSL3_ST_CW_CERT_C;
2217 if (s->state == SSL3_ST_CW_CERT_C)
2219 s->state=SSL3_ST_CW_CERT_D;
2220 l=ssl3_output_cert_chain(s,
2221 (s->s3->tmp.cert_req == 2)?NULL:s->cert->key->x509);
2225 /* SSL3_ST_CW_CERT_D */
2226 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2229 #define has_bits(i,m) (((i)&(m)) == (m))
2231 static int ssl3_check_cert_and_algorithm(SSL *s)
2235 EVP_PKEY *pkey=NULL;
2237 #ifndef OPENSSL_NO_RSA
2240 #ifndef OPENSSL_NO_DH
2244 sc=s->session->sess_cert;
2248 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,ERR_R_INTERNAL_ERROR);
2252 algs=s->s3->tmp.new_cipher->algorithms;
2254 /* we don't have a certificate */
2255 if (algs & (SSL_aDH|SSL_aNULL|SSL_aKRB5))
2258 #ifndef OPENSSL_NO_RSA
2259 rsa=s->session->sess_cert->peer_rsa_tmp;
2261 #ifndef OPENSSL_NO_DH
2262 dh=s->session->sess_cert->peer_dh_tmp;
2265 /* This is the passed certificate */
2267 idx=sc->peer_cert_type;
2268 #ifndef OPENSSL_NO_ECDH
2269 if (idx == SSL_PKEY_ECC)
2271 if (check_srvr_ecc_cert_and_alg(sc->peer_pkeys[idx].x509,
2272 s->s3->tmp.new_cipher) == 0)
2273 { /* check failed */
2274 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_BAD_ECC_CERT);
2283 pkey=X509_get_pubkey(sc->peer_pkeys[idx].x509);
2284 i=X509_certificate_type(sc->peer_pkeys[idx].x509,pkey);
2285 EVP_PKEY_free(pkey);
2288 /* Check that we have a certificate if we require one */
2289 if ((algs & SSL_aRSA) && !has_bits(i,EVP_PK_RSA|EVP_PKT_SIGN))
2291 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_SIGNING_CERT);
2294 #ifndef OPENSSL_NO_DSA
2295 else if ((algs & SSL_aDSS) && !has_bits(i,EVP_PK_DSA|EVP_PKT_SIGN))
2297 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DSA_SIGNING_CERT);
2301 #ifndef OPENSSL_NO_RSA
2302 if ((algs & SSL_kRSA) &&
2303 !(has_bits(i,EVP_PK_RSA|EVP_PKT_ENC) || (rsa != NULL)))
2305 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_ENCRYPTING_CERT);
2309 #ifndef OPENSSL_NO_DH
2310 if ((algs & SSL_kEDH) &&
2311 !(has_bits(i,EVP_PK_DH|EVP_PKT_EXCH) || (dh != NULL)))
2313 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_KEY);
2316 else if ((algs & SSL_kDHr) && !has_bits(i,EVP_PK_DH|EVP_PKS_RSA))
2318 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_RSA_CERT);
2321 #ifndef OPENSSL_NO_DSA
2322 else if ((algs & SSL_kDHd) && !has_bits(i,EVP_PK_DH|EVP_PKS_DSA))
2324 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_DSA_CERT);
2330 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) && !has_bits(i,EVP_PKT_EXP))
2332 #ifndef OPENSSL_NO_RSA
2333 if (algs & SSL_kRSA)
2336 || RSA_size(rsa) > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2338 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_RSA_KEY);
2344 #ifndef OPENSSL_NO_DH
2345 if (algs & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
2348 || DH_size(dh) > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2350 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_DH_KEY);
2357 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);
2363 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
2369 #ifndef OPENSSL_NO_ECDH
2370 /* This is the complement of nid2curve_id in s3_srvr.c. */
2371 static int curve_id2nid(int curve_id)
2373 /* ECC curves from draft-ietf-tls-ecc-01.txt (Mar 15, 2001) */
2374 static int nid_list[26] =
2377 NID_sect163k1, /* sect163k1 (1) */
2378 NID_sect163r1, /* sect163r1 (2) */
2379 NID_sect163r2, /* sect163r2 (3) */
2380 NID_sect193r1, /* sect193r1 (4) */
2381 NID_sect193r2, /* sect193r2 (5) */
2382 NID_sect233k1, /* sect233k1 (6) */
2383 NID_sect233r1, /* sect233r1 (7) */
2384 NID_sect239k1, /* sect239k1 (8) */
2385 NID_sect283k1, /* sect283k1 (9) */
2386 NID_sect283r1, /* sect283r1 (10) */
2387 NID_sect409k1, /* sect409k1 (11) */
2388 NID_sect409r1, /* sect409r1 (12) */
2389 NID_sect571k1, /* sect571k1 (13) */
2390 NID_sect571r1, /* sect571r1 (14) */
2391 NID_secp160k1, /* secp160k1 (15) */
2392 NID_secp160r1, /* secp160r1 (16) */
2393 NID_secp160r2, /* secp160r2 (17) */
2394 NID_secp192k1, /* secp192k1 (18) */
2395 NID_X9_62_prime192v1, /* secp192r1 (19) */
2396 NID_secp224k1, /* secp224k1 (20) */
2397 NID_secp224r1, /* secp224r1 (21) */
2398 NID_secp256k1, /* secp256k1 (22) */
2399 NID_X9_62_prime256v1, /* secp256r1 (23) */
2400 NID_secp384r1, /* secp384r1 (24) */
2401 NID_secp521r1 /* secp521r1 (25) */
2404 if ((curve_id < 1) || (curve_id > 25)) return 0;
2406 return nid_list[curve_id];