2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
58 /* ====================================================================
59 * Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved.
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
87 * 6. Redistributions of any form whatsoever must retain the following
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
111 /* ====================================================================
112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
114 * Portions of the attached software ("Contribution") are developed by
115 * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
117 * The Contribution is licensed pursuant to the OpenSSL open source
118 * license provided above.
120 * ECC cipher suite support in OpenSSL originally written by
121 * Vipul Gupta and Sumit Gupta of Sun Microsystems Laboratories.
126 #include "ssl_locl.h"
127 #include "kssl_lcl.h"
128 #include <openssl/buffer.h>
129 #include <openssl/rand.h>
130 #include <openssl/objects.h>
131 #include <openssl/evp.h>
132 #include <openssl/md5.h>
134 static SSL_METHOD *ssl3_get_client_method(int ver);
135 static int ssl3_client_hello(SSL *s);
136 static int ssl3_get_server_hello(SSL *s);
137 static int ssl3_get_certificate_request(SSL *s);
138 static int ca_dn_cmp(const X509_NAME * const *a,const X509_NAME * const *b);
139 static int ssl3_get_server_done(SSL *s);
140 static int ssl3_send_client_verify(SSL *s);
141 static int ssl3_send_client_certificate(SSL *s);
142 static int ssl3_send_client_key_exchange(SSL *s);
143 static int ssl3_get_key_exchange(SSL *s);
144 static int ssl3_get_server_certificate(SSL *s);
145 static int ssl3_check_cert_and_algorithm(SSL *s);
147 #ifndef OPENSSL_NO_ECDH
148 static int curve_id2nid(int curve_id);
149 int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs);
152 static SSL_METHOD *ssl3_get_client_method(int ver)
154 if (ver == SSL3_VERSION)
155 return(SSLv3_client_method());
160 SSL_METHOD *SSLv3_client_method(void)
163 static SSL_METHOD SSLv3_client_data;
167 CRYPTO_w_lock(CRYPTO_LOCK_SSL_METHOD);
171 memcpy((char *)&SSLv3_client_data,(char *)sslv3_base_method(),
173 SSLv3_client_data.ssl_connect=ssl3_connect;
174 SSLv3_client_data.get_ssl_method=ssl3_get_client_method;
178 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_METHOD);
180 return(&SSLv3_client_data);
183 int ssl3_connect(SSL *s)
186 unsigned long Time=time(NULL),l;
188 void (*cb)(const SSL *ssl,int type,int val)=NULL;
190 int new_state,state,skip=0;;
192 RAND_add(&Time,sizeof(Time),0);
196 if (s->info_callback != NULL)
198 else if (s->ctx->info_callback != NULL)
199 cb=s->ctx->info_callback;
202 if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
210 case SSL_ST_RENEGOTIATE:
212 s->state=SSL_ST_CONNECT;
213 s->ctx->stats.sess_connect_renegotiate++;
217 case SSL_ST_BEFORE|SSL_ST_CONNECT:
218 case SSL_ST_OK|SSL_ST_CONNECT:
221 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
223 if ((s->version & 0xff00 ) != 0x0300)
225 SSLerr(SSL_F_SSL3_CONNECT, ERR_R_INTERNAL_ERROR);
230 /* s->version=SSL3_VERSION; */
231 s->type=SSL_ST_CONNECT;
233 if (s->init_buf == NULL)
235 if ((buf=BUF_MEM_new()) == NULL)
240 if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))
249 if (!ssl3_setup_buffers(s)) { ret= -1; goto end; }
251 /* setup buffing BIO */
252 if (!ssl_init_wbio_buffer(s,0)) { ret= -1; goto end; }
254 /* don't push the buffering BIO quite yet */
256 ssl3_init_finished_mac(s);
258 s->state=SSL3_ST_CW_CLNT_HELLO_A;
259 s->ctx->stats.sess_connect++;
263 case SSL3_ST_CW_CLNT_HELLO_A:
264 case SSL3_ST_CW_CLNT_HELLO_B:
267 ret=ssl3_client_hello(s);
268 if (ret <= 0) goto end;
269 s->state=SSL3_ST_CR_SRVR_HELLO_A;
272 /* turn on buffering for the next lot of output */
273 if (s->bbio != s->wbio)
274 s->wbio=BIO_push(s->bbio,s->wbio);
278 case SSL3_ST_CR_SRVR_HELLO_A:
279 case SSL3_ST_CR_SRVR_HELLO_B:
280 ret=ssl3_get_server_hello(s);
281 if (ret <= 0) goto end;
283 s->state=SSL3_ST_CR_FINISHED_A;
285 s->state=SSL3_ST_CR_CERT_A;
289 case SSL3_ST_CR_CERT_A:
290 case SSL3_ST_CR_CERT_B:
291 /* Check if it is anon DH/ECDH */
292 if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
294 ret=ssl3_get_server_certificate(s);
295 if (ret <= 0) goto end;
299 s->state=SSL3_ST_CR_KEY_EXCH_A;
303 case SSL3_ST_CR_KEY_EXCH_A:
304 case SSL3_ST_CR_KEY_EXCH_B:
305 ret=ssl3_get_key_exchange(s);
306 if (ret <= 0) goto end;
307 s->state=SSL3_ST_CR_CERT_REQ_A;
310 /* at this point we check that we have the
311 * required stuff from the server */
312 if (!ssl3_check_cert_and_algorithm(s))
319 case SSL3_ST_CR_CERT_REQ_A:
320 case SSL3_ST_CR_CERT_REQ_B:
321 ret=ssl3_get_certificate_request(s);
322 if (ret <= 0) goto end;
323 s->state=SSL3_ST_CR_SRVR_DONE_A;
327 case SSL3_ST_CR_SRVR_DONE_A:
328 case SSL3_ST_CR_SRVR_DONE_B:
329 ret=ssl3_get_server_done(s);
330 if (ret <= 0) goto end;
331 if (s->s3->tmp.cert_req)
332 s->state=SSL3_ST_CW_CERT_A;
334 s->state=SSL3_ST_CW_KEY_EXCH_A;
339 case SSL3_ST_CW_CERT_A:
340 case SSL3_ST_CW_CERT_B:
341 case SSL3_ST_CW_CERT_C:
342 case SSL3_ST_CW_CERT_D:
343 ret=ssl3_send_client_certificate(s);
344 if (ret <= 0) goto end;
345 s->state=SSL3_ST_CW_KEY_EXCH_A;
349 case SSL3_ST_CW_KEY_EXCH_A:
350 case SSL3_ST_CW_KEY_EXCH_B:
351 ret=ssl3_send_client_key_exchange(s);
352 if (ret <= 0) goto end;
353 l=s->s3->tmp.new_cipher->algorithms;
354 /* EAY EAY EAY need to check for DH fix cert
356 /* For TLS, cert_req is set to 2, so a cert chain
357 * of nothing is sent, but no verify packet is sent */
358 /* XXX: For now, we do not support client
359 * authentication in ECDH cipher suites with
360 * ECDH (rather than ECDSA) certificates.
361 * We need to skip the certificate verify
362 * message when client's ECDH public key is sent
363 * inside the client certificate.
365 if (s->s3->tmp.cert_req == 1)
367 s->state=SSL3_ST_CW_CERT_VRFY_A;
371 s->state=SSL3_ST_CW_CHANGE_A;
372 s->s3->change_cipher_spec=0;
378 case SSL3_ST_CW_CERT_VRFY_A:
379 case SSL3_ST_CW_CERT_VRFY_B:
380 ret=ssl3_send_client_verify(s);
381 if (ret <= 0) goto end;
382 s->state=SSL3_ST_CW_CHANGE_A;
384 s->s3->change_cipher_spec=0;
387 case SSL3_ST_CW_CHANGE_A:
388 case SSL3_ST_CW_CHANGE_B:
389 ret=ssl3_send_change_cipher_spec(s,
390 SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B);
391 if (ret <= 0) goto end;
392 s->state=SSL3_ST_CW_FINISHED_A;
395 s->session->cipher=s->s3->tmp.new_cipher;
396 if (s->s3->tmp.new_compression == NULL)
397 s->session->compress_meth=0;
399 s->session->compress_meth=
400 s->s3->tmp.new_compression->id;
401 if (!s->method->ssl3_enc->setup_key_block(s))
407 if (!s->method->ssl3_enc->change_cipher_state(s,
408 SSL3_CHANGE_CIPHER_CLIENT_WRITE))
416 case SSL3_ST_CW_FINISHED_A:
417 case SSL3_ST_CW_FINISHED_B:
418 ret=ssl3_send_finished(s,
419 SSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B,
420 s->method->ssl3_enc->client_finished_label,
421 s->method->ssl3_enc->client_finished_label_len);
422 if (ret <= 0) goto end;
423 s->state=SSL3_ST_CW_FLUSH;
426 s->s3->flags&= ~SSL3_FLAGS_POP_BUFFER;
429 s->s3->tmp.next_state=SSL_ST_OK;
430 if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED)
433 s->s3->flags|=SSL3_FLAGS_POP_BUFFER;
434 s->s3->delay_buf_pop_ret=0;
439 s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A;
444 case SSL3_ST_CR_FINISHED_A:
445 case SSL3_ST_CR_FINISHED_B:
447 ret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A,
448 SSL3_ST_CR_FINISHED_B);
449 if (ret <= 0) goto end;
452 s->state=SSL3_ST_CW_CHANGE_A;
458 case SSL3_ST_CW_FLUSH:
459 /* number of bytes to be flushed */
460 num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);
463 s->rwstate=SSL_WRITING;
464 num1=BIO_flush(s->wbio);
465 if (num1 <= 0) { ret= -1; goto end; }
466 s->rwstate=SSL_NOTHING;
469 s->state=s->s3->tmp.next_state;
473 /* clean a few things up */
474 ssl3_cleanup_key_block(s);
476 if (s->init_buf != NULL)
478 BUF_MEM_free(s->init_buf);
482 /* If we are not 'joining' the last two packets,
483 * remove the buffering now */
484 if (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER))
485 ssl_free_wbio_buffer(s);
486 /* else do it later in ssl3_write */
491 ssl_update_cache(s,SSL_SESS_CACHE_CLIENT);
492 if (s->hit) s->ctx->stats.sess_hit++;
496 s->handshake_func=ssl3_connect;
497 s->ctx->stats.sess_connect_good++;
499 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);
505 SSLerr(SSL_F_SSL3_CONNECT,SSL_R_UNKNOWN_STATE);
511 /* did we do anything */
512 if (!s->s3->tmp.reuse_message && !skip)
516 if ((ret=BIO_flush(s->wbio)) <= 0)
520 if ((cb != NULL) && (s->state != state))
524 cb(s,SSL_CB_CONNECT_LOOP,1);
535 cb(s,SSL_CB_CONNECT_EXIT,ret);
540 static int ssl3_client_hello(SSL *s)
545 unsigned long Time,l;
548 buf=(unsigned char *)s->init_buf->data;
549 if (s->state == SSL3_ST_CW_CLNT_HELLO_A)
551 if ((s->session == NULL) ||
552 (s->session->ssl_version != s->version) ||
553 (s->session->not_resumable))
555 if (!ssl_get_new_session(s,0))
558 /* else use the pre-loaded session */
560 p=s->s3->client_random;
561 Time=time(NULL); /* Time */
563 RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-sizeof(Time));
565 /* Do the message type and length last */
568 *(p++)=s->version>>8;
569 *(p++)=s->version&0xff;
570 s->client_version=s->version;
573 memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
580 i=s->session->session_id_length;
584 if (i > (int)sizeof(s->session->session_id))
586 SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
589 memcpy(p,s->session->session_id,i);
593 /* Ciphers supported */
594 i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]));
597 SSLerr(SSL_F_SSL3_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
604 if (s->ctx->comp_methods == NULL)
607 j=sk_SSL_COMP_num(s->ctx->comp_methods);
611 comp=sk_SSL_COMP_value(s->ctx->comp_methods,i);
614 *(p++)=0; /* Add the NULL method */
618 *(d++)=SSL3_MT_CLIENT_HELLO;
621 s->state=SSL3_ST_CW_CLNT_HELLO_B;
622 /* number of bytes to write */
627 /* SSL3_ST_CW_CLNT_HELLO_B */
628 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
633 static int ssl3_get_server_hello(SSL *s)
635 STACK_OF(SSL_CIPHER) *sk;
643 n=ssl3_get_message(s,
644 SSL3_ST_CR_SRVR_HELLO_A,
645 SSL3_ST_CR_SRVR_HELLO_B,
646 SSL3_MT_SERVER_HELLO,
650 if (!ok) return((int)n);
651 d=p=(unsigned char *)s->init_msg;
653 if ((p[0] != (s->version>>8)) || (p[1] != (s->version&0xff)))
655 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_SSL_VERSION);
656 s->version=(s->version&0xff00)|p[1];
657 al=SSL_AD_PROTOCOL_VERSION;
662 /* load the server hello data */
663 /* load the server random */
664 memcpy(s->s3->server_random,p,SSL3_RANDOM_SIZE);
667 /* get the session-id */
670 if ((j > sizeof s->session->session_id) || (j > SSL3_SESSION_ID_SIZE))
672 al=SSL_AD_ILLEGAL_PARAMETER;
673 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SSL3_SESSION_ID_TOO_LONG);
677 if (j != 0 && j == s->session->session_id_length
678 && memcmp(p,s->session->session_id,j) == 0)
680 if(s->sid_ctx_length != s->session->sid_ctx_length
681 || memcmp(s->session->sid_ctx,s->sid_ctx,s->sid_ctx_length))
683 /* actually a client application bug */
684 al=SSL_AD_ILLEGAL_PARAMETER;
685 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);
690 else /* a miss or crap from the other end */
692 /* If we were trying for session-id reuse, make a new
693 * SSL_SESSION so we don't stuff up other people */
695 if (s->session->session_id_length > 0)
697 if (!ssl_get_new_session(s,0))
699 al=SSL_AD_INTERNAL_ERROR;
703 s->session->session_id_length=j;
704 memcpy(s->session->session_id,p,j); /* j could be 0 */
707 c=ssl_get_cipher_by_char(s,p);
711 al=SSL_AD_ILLEGAL_PARAMETER;
712 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNKNOWN_CIPHER_RETURNED);
715 p+=ssl_put_cipher_by_char(s,NULL,NULL);
717 sk=ssl_get_ciphers_by_id(s);
718 i=sk_SSL_CIPHER_find(sk,c);
721 /* we did not say we would use this cipher */
722 al=SSL_AD_ILLEGAL_PARAMETER;
723 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_CIPHER_RETURNED);
727 /* Depending on the session caching (internal/external), the cipher
728 and/or cipher_id values may not be set. Make sure that
729 cipher_id is set and use it for comparison. */
730 if (s->session->cipher)
731 s->session->cipher_id = s->session->cipher->id;
732 if (s->hit && (s->session->cipher_id != c->id))
735 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG))
737 al=SSL_AD_ILLEGAL_PARAMETER;
738 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED);
742 s->s3->tmp.new_cipher=c;
744 /* lets get the compression algorithm */
750 comp=ssl3_comp_find(s->ctx->comp_methods,j);
752 if ((j != 0) && (comp == NULL))
754 al=SSL_AD_ILLEGAL_PARAMETER;
755 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
760 s->s3->tmp.new_compression=comp;
765 /* wrong packet length */
766 al=SSL_AD_DECODE_ERROR;
767 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_PACKET_LENGTH);
773 ssl3_send_alert(s,SSL3_AL_FATAL,al);
778 static int ssl3_get_server_certificate(SSL *s)
781 unsigned long n,nc,llen,l;
783 const unsigned char *q,*p;
785 STACK_OF(X509) *sk=NULL;
788 int need_cert = 1; /* VRS: 0=> will allow null cert if auth == KRB5 */
790 n=ssl3_get_message(s,
797 if (!ok) return((int)n);
799 if (s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE)
801 s->s3->tmp.reuse_message=1;
805 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE)
807 al=SSL_AD_UNEXPECTED_MESSAGE;
808 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_BAD_MESSAGE_TYPE);
811 p=d=(unsigned char *)s->init_msg;
813 if ((sk=sk_X509_new_null()) == NULL)
815 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
822 al=SSL_AD_DECODE_ERROR;
823 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_LENGTH_MISMATCH);
826 for (nc=0; nc<llen; )
831 al=SSL_AD_DECODE_ERROR;
832 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
837 x=d2i_X509(NULL,&q,l);
840 al=SSL_AD_BAD_CERTIFICATE;
841 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_ASN1_LIB);
846 al=SSL_AD_DECODE_ERROR;
847 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
850 if (!sk_X509_push(sk,x))
852 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
860 i=ssl_verify_cert_chain(s,sk);
861 if ((s->verify_mode != SSL_VERIFY_NONE) && (!i)
862 #ifndef OPENSSL_NO_KRB5
863 && (s->s3->tmp.new_cipher->algorithms & (SSL_MKEY_MASK|SSL_AUTH_MASK))
864 != (SSL_aKRB5|SSL_kKRB5)
865 #endif /* OPENSSL_NO_KRB5 */
868 al=ssl_verify_alarm_type(s->verify_result);
869 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED);
872 ERR_clear_error(); /* but we keep s->verify_result */
874 sc=ssl_sess_cert_new();
875 if (sc == NULL) goto err;
877 if (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert);
878 s->session->sess_cert=sc;
881 /* Inconsistency alert: cert_chain does include the peer's
882 * certificate, which we don't include in s3_srvr.c */
883 x=sk_X509_value(sk,0);
885 /* VRS 19990621: possible memory leak; sk=null ==> !sk_pop_free() @end*/
887 pkey=X509_get_pubkey(x);
889 /* VRS: allow null cert if auth == KRB5 */
890 need_cert = ((s->s3->tmp.new_cipher->algorithms
891 & (SSL_MKEY_MASK|SSL_AUTH_MASK))
892 == (SSL_aKRB5|SSL_kKRB5))? 0: 1;
895 printf("pkey,x = %p, %p\n", pkey,x);
896 printf("ssl_cert_type(x,pkey) = %d\n", ssl_cert_type(x,pkey));
897 printf("cipher, alg, nc = %s, %lx, %d\n", s->s3->tmp.new_cipher->name,
898 s->s3->tmp.new_cipher->algorithms, need_cert);
899 #endif /* KSSL_DEBUG */
901 if (need_cert && ((pkey == NULL) || EVP_PKEY_missing_parameters(pkey)))
905 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
906 SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS);
910 i=ssl_cert_type(x,pkey);
911 if (need_cert && i < 0)
915 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
916 SSL_R_UNKNOWN_CERTIFICATE_TYPE);
922 sc->peer_cert_type=i;
923 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
924 /* Why would the following ever happen?
925 * We just created sc a couple of lines ago. */
926 if (sc->peer_pkeys[i].x509 != NULL)
927 X509_free(sc->peer_pkeys[i].x509);
928 sc->peer_pkeys[i].x509=x;
929 sc->peer_key= &(sc->peer_pkeys[i]);
931 if (s->session->peer != NULL)
932 X509_free(s->session->peer);
933 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
938 sc->peer_cert_type=i;
941 if (s->session->peer != NULL)
942 X509_free(s->session->peer);
943 s->session->peer=NULL;
945 s->session->verify_result = s->verify_result;
953 ssl3_send_alert(s,SSL3_AL_FATAL,al);
958 sk_X509_pop_free(sk,X509_free);
962 static int ssl3_get_key_exchange(SSL *s)
964 #ifndef OPENSSL_NO_RSA
965 unsigned char *q,md_buf[EVP_MAX_MD_SIZE*2];
968 unsigned char *param,*p;
969 int al,i,j,param_len,ok;
972 #ifndef OPENSSL_NO_RSA
975 #ifndef OPENSSL_NO_DH
978 #ifndef OPENSSL_NO_ECDH
980 BN_CTX *bn_ctx = NULL;
981 EC_POINT *srvr_ecpoint = NULL;
983 int encoded_pt_len = 0;
986 /* use same message size as in ssl3_get_certificate_request()
987 * as ServerKeyExchange message may be skipped */
988 n=ssl3_get_message(s,
989 SSL3_ST_CR_KEY_EXCH_A,
990 SSL3_ST_CR_KEY_EXCH_B,
995 if (!ok) return((int)n);
997 if (s->s3->tmp.message_type != SSL3_MT_SERVER_KEY_EXCHANGE)
999 s->s3->tmp.reuse_message=1;
1003 param=p=(unsigned char *)s->init_msg;
1005 if (s->session->sess_cert != NULL)
1007 #ifndef OPENSSL_NO_RSA
1008 if (s->session->sess_cert->peer_rsa_tmp != NULL)
1010 RSA_free(s->session->sess_cert->peer_rsa_tmp);
1011 s->session->sess_cert->peer_rsa_tmp=NULL;
1014 #ifndef OPENSSL_NO_DH
1015 if (s->session->sess_cert->peer_dh_tmp)
1017 DH_free(s->session->sess_cert->peer_dh_tmp);
1018 s->session->sess_cert->peer_dh_tmp=NULL;
1021 #ifndef OPENSSL_NO_ECDH
1022 if (s->session->sess_cert->peer_ecdh_tmp)
1024 EC_KEY_free(s->session->sess_cert->peer_ecdh_tmp);
1025 s->session->sess_cert->peer_ecdh_tmp=NULL;
1031 s->session->sess_cert=ssl_sess_cert_new();
1035 alg=s->s3->tmp.new_cipher->algorithms;
1036 EVP_MD_CTX_init(&md_ctx);
1038 #ifndef OPENSSL_NO_RSA
1041 if ((rsa=RSA_new()) == NULL)
1043 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1050 al=SSL_AD_DECODE_ERROR;
1051 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_MODULUS_LENGTH);
1054 if (!(rsa->n=BN_bin2bn(p,i,rsa->n)))
1056 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1065 al=SSL_AD_DECODE_ERROR;
1066 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_E_LENGTH);
1069 if (!(rsa->e=BN_bin2bn(p,i,rsa->e)))
1071 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1077 /* this should be because we are using an export cipher */
1079 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1082 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1085 s->session->sess_cert->peer_rsa_tmp=rsa;
1088 #else /* OPENSSL_NO_RSA */
1092 #ifndef OPENSSL_NO_DH
1093 else if (alg & SSL_kEDH)
1095 if ((dh=DH_new()) == NULL)
1097 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_DH_LIB);
1104 al=SSL_AD_DECODE_ERROR;
1105 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_P_LENGTH);
1108 if (!(dh->p=BN_bin2bn(p,i,NULL)))
1110 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1119 al=SSL_AD_DECODE_ERROR;
1120 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_G_LENGTH);
1123 if (!(dh->g=BN_bin2bn(p,i,NULL)))
1125 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1134 al=SSL_AD_DECODE_ERROR;
1135 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_PUB_KEY_LENGTH);
1138 if (!(dh->pub_key=BN_bin2bn(p,i,NULL)))
1140 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1146 #ifndef OPENSSL_NO_RSA
1148 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1153 #ifndef OPENSSL_NO_DSA
1154 else if (alg & SSL_aDSS)
1155 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].x509);
1157 /* else anonymous DH, so no certificate or pkey. */
1159 s->session->sess_cert->peer_dh_tmp=dh;
1162 else if ((alg & SSL_kDHr) || (alg & SSL_kDHd))
1164 al=SSL_AD_ILLEGAL_PARAMETER;
1165 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
1168 #endif /* !OPENSSL_NO_DH */
1170 #ifndef OPENSSL_NO_ECDH
1171 else if (alg & SSL_kECDHE)
1173 if ((ecdh=EC_KEY_new()) == NULL)
1175 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1179 /* Extract elliptic curve parameters and the
1180 * server's ephemeral ECDH public key.
1181 * Keep accumulating lengths of various components in
1182 * param_len and make sure it never exceeds n.
1185 /* XXX: For now we only support named (not generic) curves
1186 * and the ECParameters in this case is just two bytes.
1189 if ((param_len > n) ||
1190 (*p != NAMED_CURVE_TYPE) ||
1191 ((curve_nid = curve_id2nid(*(p + 1))) == 0))
1193 al=SSL_AD_INTERNAL_ERROR;
1194 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS);
1198 if (!(ecdh->group=EC_GROUP_new_by_nid(curve_nid)))
1200 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
1204 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
1205 (EC_GROUP_get_degree(ecdh->group) > 163))
1207 al=SSL_AD_EXPORT_RESTRICTION;
1208 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
1214 /* Next, get the encoded ECPoint */
1215 if (((srvr_ecpoint = EC_POINT_new(ecdh->group)) == NULL) ||
1216 ((bn_ctx = BN_CTX_new()) == NULL))
1218 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1222 encoded_pt_len = *p; /* length of encoded point */
1224 param_len += (1 + encoded_pt_len);
1225 if ((param_len > n) ||
1226 (EC_POINT_oct2point(ecdh->group, srvr_ecpoint,
1227 p, encoded_pt_len, bn_ctx) == 0))
1229 al=SSL_AD_DECODE_ERROR;
1230 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_ECPOINT);
1237 /* The ECC/TLS specification does not mention
1238 * the use of DSA to sign ECParameters in the server
1239 * key exchange message. We do support RSA and ECDSA.
1242 #ifndef OPENSSL_NO_RSA
1243 else if (alg & SSL_aRSA)
1244 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1246 #ifndef OPENSSL_NO_ECDSA
1247 else if (alg & SSL_aECDSA)
1248 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
1250 /* else anonymous ECDH, so no certificate or pkey. */
1251 ecdh->pub_key = srvr_ecpoint;
1252 s->session->sess_cert->peer_ecdh_tmp=ecdh;
1254 BN_CTX_free(bn_ctx);
1255 srvr_ecpoint = NULL;
1257 else if (alg & SSL_kECDH)
1259 al=SSL_AD_UNEXPECTED_MESSAGE;
1260 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNEXPECTED_MESSAGE);
1263 #endif /* !OPENSSL_NO_ECDH */
1266 al=SSL_AD_HANDSHAKE_FAILURE;
1267 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
1272 /* p points to the next byte, there are 'n' bytes left */
1274 /* if it was signed, check the signature */
1279 j=EVP_PKEY_size(pkey);
1281 if ((i != n) || (n > j) || (n <= 0))
1283 /* wrong packet length */
1284 al=SSL_AD_DECODE_ERROR;
1285 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_WRONG_SIGNATURE_LENGTH);
1289 #ifndef OPENSSL_NO_RSA
1290 if (pkey->type == EVP_PKEY_RSA)
1296 for (num=2; num > 0; num--)
1298 EVP_DigestInit_ex(&md_ctx,(num == 2)
1299 ?s->ctx->md5:s->ctx->sha1, NULL);
1300 EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1301 EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1302 EVP_DigestUpdate(&md_ctx,param,param_len);
1303 EVP_DigestFinal_ex(&md_ctx,q,(unsigned int *)&i);
1307 i=RSA_verify(NID_md5_sha1, md_buf, j, p, n,
1311 al=SSL_AD_DECRYPT_ERROR;
1312 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_DECRYPT);
1318 al=SSL_AD_DECRYPT_ERROR;
1319 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1325 #ifndef OPENSSL_NO_DSA
1326 if (pkey->type == EVP_PKEY_DSA)
1329 EVP_VerifyInit_ex(&md_ctx,EVP_dss1(), NULL);
1330 EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1331 EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1332 EVP_VerifyUpdate(&md_ctx,param,param_len);
1333 if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey))
1336 al=SSL_AD_DECRYPT_ERROR;
1337 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1343 #ifndef OPENSSL_NO_ECDSA
1344 if (pkey->type == EVP_PKEY_EC)
1346 /* let's do ECDSA */
1347 EVP_VerifyInit_ex(&md_ctx,EVP_ecdsa(), NULL);
1348 EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1349 EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1350 EVP_VerifyUpdate(&md_ctx,param,param_len);
1351 if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey))
1354 al=SSL_AD_DECRYPT_ERROR;
1355 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1362 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1368 /* still data left over */
1369 if (!(alg & SSL_aNULL))
1371 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1376 al=SSL_AD_DECODE_ERROR;
1377 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_EXTRA_DATA_IN_MESSAGE);
1381 EVP_PKEY_free(pkey);
1382 EVP_MD_CTX_cleanup(&md_ctx);
1385 ssl3_send_alert(s,SSL3_AL_FATAL,al);
1387 EVP_PKEY_free(pkey);
1388 #ifndef OPENSSL_NO_RSA
1392 #ifndef OPENSSL_NO_DH
1396 #ifndef OPENSSL_NO_ECDH
1397 BN_CTX_free(bn_ctx);
1398 EC_POINT_free(srvr_ecpoint);
1402 EVP_MD_CTX_cleanup(&md_ctx);
1406 static int ssl3_get_certificate_request(SSL *s)
1409 unsigned long n,nc,l;
1410 unsigned int llen,ctype_num,i;
1412 const unsigned char *p,*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 p=d=(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);
1579 static const int KDF1_SHA1_len = 20;
1580 static void *KDF1_SHA1(void *in, size_t inlen, void *out, size_t outlen)
1582 #ifndef OPENSSL_NO_SHA
1583 if (outlen != SHA_DIGEST_LENGTH)
1585 return SHA1(in, inlen, out);
1591 static int ssl3_send_client_key_exchange(SSL *s)
1593 unsigned char *p,*d;
1596 #ifndef OPENSSL_NO_RSA
1598 EVP_PKEY *pkey=NULL;
1600 #ifndef OPENSSL_NO_KRB5
1602 #endif /* OPENSSL_NO_KRB5 */
1603 #ifndef OPENSSL_NO_ECDH
1604 EC_KEY *clnt_ecdh = NULL;
1605 EC_POINT *srvr_ecpoint = NULL;
1606 EVP_PKEY *srvr_pub_pkey = NULL;
1607 unsigned char *encodedPoint = NULL;
1608 int encoded_pt_len = 0;
1609 BN_CTX * bn_ctx = NULL;
1612 if (s->state == SSL3_ST_CW_KEY_EXCH_A)
1614 d=(unsigned char *)s->init_buf->data;
1617 l=s->s3->tmp.new_cipher->algorithms;
1619 /* Fool emacs indentation */
1621 #ifndef OPENSSL_NO_RSA
1622 else if (l & SSL_kRSA)
1625 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
1627 if (s->session->sess_cert->peer_rsa_tmp != NULL)
1628 rsa=s->session->sess_cert->peer_rsa_tmp;
1631 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1632 if ((pkey == NULL) ||
1633 (pkey->type != EVP_PKEY_RSA) ||
1634 (pkey->pkey.rsa == NULL))
1636 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1640 EVP_PKEY_free(pkey);
1643 tmp_buf[0]=s->client_version>>8;
1644 tmp_buf[1]=s->client_version&0xff;
1645 if (RAND_bytes(&(tmp_buf[2]),sizeof tmp_buf-2) <= 0)
1648 s->session->master_key_length=sizeof tmp_buf;
1651 /* Fix buf for TLS and beyond */
1652 if (s->version > SSL3_VERSION)
1654 n=RSA_public_encrypt(sizeof tmp_buf,
1655 tmp_buf,p,rsa,RSA_PKCS1_PADDING);
1657 if (s->options & SSL_OP_PKCS1_CHECK_1) p[1]++;
1658 if (s->options & SSL_OP_PKCS1_CHECK_2) tmp_buf[0]=0x70;
1662 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_BAD_RSA_ENCRYPT);
1666 /* Fix buf for TLS and beyond */
1667 if (s->version > SSL3_VERSION)
1673 s->session->master_key_length=
1674 s->method->ssl3_enc->generate_master_secret(s,
1675 s->session->master_key,
1676 tmp_buf,sizeof tmp_buf);
1677 OPENSSL_cleanse(tmp_buf,sizeof tmp_buf);
1680 #ifndef OPENSSL_NO_KRB5
1681 else if (l & SSL_kKRB5)
1683 krb5_error_code krb5rc;
1684 KSSL_CTX *kssl_ctx = s->kssl_ctx;
1685 /* krb5_data krb5_ap_req; */
1686 krb5_data *enc_ticket;
1687 krb5_data authenticator, *authp = NULL;
1688 EVP_CIPHER_CTX ciph_ctx;
1689 EVP_CIPHER *enc = NULL;
1690 unsigned char iv[EVP_MAX_IV_LENGTH];
1691 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
1692 unsigned char epms[SSL_MAX_MASTER_KEY_LENGTH
1693 + EVP_MAX_IV_LENGTH];
1694 int padl, outl = sizeof(epms);
1696 EVP_CIPHER_CTX_init(&ciph_ctx);
1699 printf("ssl3_send_client_key_exchange(%lx & %lx)\n",
1701 #endif /* KSSL_DEBUG */
1705 if (KRB5SENDAUTH) authp = &authenticator;
1706 #endif /* KRB5SENDAUTH */
1708 krb5rc = kssl_cget_tkt(kssl_ctx, &enc_ticket, authp,
1710 enc = kssl_map_enc(kssl_ctx->enctype);
1715 printf("kssl_cget_tkt rtn %d\n", krb5rc);
1716 if (krb5rc && kssl_err.text)
1717 printf("kssl_cget_tkt kssl_err=%s\n", kssl_err.text);
1719 #endif /* KSSL_DEBUG */
1723 ssl3_send_alert(s,SSL3_AL_FATAL,
1724 SSL_AD_HANDSHAKE_FAILURE);
1725 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1730 /* 20010406 VRS - Earlier versions used KRB5 AP_REQ
1731 ** in place of RFC 2712 KerberosWrapper, as in:
1733 ** Send ticket (copy to *p, set n = length)
1734 ** n = krb5_ap_req.length;
1735 ** memcpy(p, krb5_ap_req.data, krb5_ap_req.length);
1736 ** if (krb5_ap_req.data)
1737 ** kssl_krb5_free_data_contents(NULL,&krb5_ap_req);
1739 ** Now using real RFC 2712 KerberosWrapper
1740 ** (Thanks to Simon Wilkinson <sxw@sxw.org.uk>)
1741 ** Note: 2712 "opaque" types are here replaced
1742 ** with a 2-byte length followed by the value.
1744 ** KerberosWrapper= xx xx asn1ticket 0 0 xx xx encpms
1745 ** Where "xx xx" = length bytes. Shown here with
1746 ** optional authenticator omitted.
1749 /* KerberosWrapper.Ticket */
1750 s2n(enc_ticket->length,p);
1751 memcpy(p, enc_ticket->data, enc_ticket->length);
1752 p+= enc_ticket->length;
1753 n = enc_ticket->length + 2;
1755 /* KerberosWrapper.Authenticator */
1756 if (authp && authp->length)
1758 s2n(authp->length,p);
1759 memcpy(p, authp->data, authp->length);
1761 n+= authp->length + 2;
1769 s2n(0,p);/* null authenticator length */
1773 if (RAND_bytes(tmp_buf,sizeof tmp_buf) <= 0)
1776 /* 20010420 VRS. Tried it this way; failed.
1777 ** EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,NULL);
1778 ** EVP_CIPHER_CTX_set_key_length(&ciph_ctx,
1779 ** kssl_ctx->length);
1780 ** EVP_EncryptInit_ex(&ciph_ctx,NULL, key,iv);
1783 memset(iv, 0, sizeof iv); /* per RFC 1510 */
1784 EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,
1786 EVP_EncryptUpdate(&ciph_ctx,epms,&outl,tmp_buf,
1788 EVP_EncryptFinal_ex(&ciph_ctx,&(epms[outl]),&padl);
1790 if (outl > sizeof epms)
1792 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
1795 EVP_CIPHER_CTX_cleanup(&ciph_ctx);
1797 /* KerberosWrapper.EncryptedPreMasterSecret */
1799 memcpy(p, epms, outl);
1803 s->session->master_key_length=
1804 s->method->ssl3_enc->generate_master_secret(s,
1805 s->session->master_key,
1806 tmp_buf, sizeof tmp_buf);
1808 OPENSSL_cleanse(tmp_buf, sizeof tmp_buf);
1809 OPENSSL_cleanse(epms, outl);
1812 #ifndef OPENSSL_NO_DH
1813 else if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
1815 DH *dh_srvr,*dh_clnt;
1817 if (s->session->sess_cert->peer_dh_tmp != NULL)
1818 dh_srvr=s->session->sess_cert->peer_dh_tmp;
1821 /* we get them from the cert */
1822 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1823 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_DH_PARAMETERS);
1827 /* generate a new random key */
1828 if ((dh_clnt=DHparams_dup(dh_srvr)) == NULL)
1830 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1833 if (!DH_generate_key(dh_clnt))
1835 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1839 /* use the 'p' output buffer for the DH key, but
1840 * make sure to clear it out afterwards */
1842 n=DH_compute_key(p,dh_srvr->pub_key,dh_clnt);
1846 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1850 /* generate master key from the result */
1851 s->session->master_key_length=
1852 s->method->ssl3_enc->generate_master_secret(s,
1853 s->session->master_key,p,n);
1857 /* send off the data */
1858 n=BN_num_bytes(dh_clnt->pub_key);
1860 BN_bn2bin(dh_clnt->pub_key,p);
1865 /* perhaps clean things up a bit EAY EAY EAY EAY*/
1869 #ifndef OPENSSL_NO_ECDH
1870 else if ((l & SSL_kECDH) || (l & SSL_kECDHE))
1872 EC_GROUP *srvr_group = NULL;
1873 int ecdh_clnt_cert = 0;
1876 /* Did we send out the client's
1877 * ECDH share for use in premaster
1878 * computation as part of client certificate?
1879 * If so, set ecdh_clnt_cert to 1.
1881 if ((l & SSL_kECDH) && (s->cert != NULL))
1883 /* XXX: For now, we do not support client
1884 * authentication using ECDH certificates.
1885 * To add such support, one needs to add
1886 * code that checks for appropriate
1887 * conditions and sets ecdh_clnt_cert to 1.
1888 * For example, the cert have an ECC
1889 * key on the same curve as the server's
1890 * and the key should be authorized for
1893 * One also needs to add code in ssl3_connect
1894 * to skip sending the certificate verify
1897 * if ((s->cert->key->privatekey != NULL) &&
1898 * (s->cert->key->privatekey->type ==
1899 * EVP_PKEY_EC) && ...)
1900 * ecdh_clnt_cert = 1;
1904 if (s->session->sess_cert->peer_ecdh_tmp != NULL)
1906 srvr_group = s->session->sess_cert-> \
1907 peer_ecdh_tmp->group;
1908 srvr_ecpoint = s->session->sess_cert-> \
1909 peer_ecdh_tmp->pub_key;
1913 /* Get the Server Public Key from Cert */
1914 srvr_pub_pkey = X509_get_pubkey(s->session-> \
1915 sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
1916 if ((srvr_pub_pkey == NULL) ||
1917 (srvr_pub_pkey->type != EVP_PKEY_EC) ||
1918 (srvr_pub_pkey->pkey.eckey == NULL))
1920 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1921 ERR_R_INTERNAL_ERROR);
1925 srvr_group = srvr_pub_pkey->pkey.eckey->group;
1927 srvr_pub_pkey->pkey.eckey->pub_key;
1930 if ((srvr_group == NULL) || (srvr_ecpoint == NULL))
1932 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1933 ERR_R_INTERNAL_ERROR);
1937 if ((clnt_ecdh=EC_KEY_new()) == NULL)
1939 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1943 clnt_ecdh->group = srvr_group;
1946 /* Reuse key info from our certificate
1947 * We only need our private key to perform
1948 * the ECDH computation.
1950 clnt_ecdh->priv_key = BN_dup(s->cert->key-> \
1951 privatekey->pkey.eckey->priv_key);
1955 /* Generate a new ECDH key pair */
1956 if (!(EC_KEY_generate_key(clnt_ecdh)))
1958 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_ECDH_LIB);
1963 /* use the 'p' output buffer for the ECDH key, but
1964 * make sure to clear it out afterwards
1967 field_size = EC_GROUP_get_degree(clnt_ecdh->group);
1968 if (field_size <= 0)
1970 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1974 /* If field size is not more than 24 octets, then use SHA-1 hash of result;
1975 * otherwise, use result (see section 4.8 of draft-ietf-tls-ecc-03.txt;
1976 * this is new with this version of the Internet Draft).
1978 if (field_size <= 24 * 8)
1979 n=ECDH_compute_key(p, KDF1_SHA1_len, srvr_ecpoint, clnt_ecdh, KDF1_SHA1);
1981 n=ECDH_compute_key(p, (field_size+7)/8, srvr_ecpoint, clnt_ecdh, NULL);
1984 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1989 /* generate master key from the result */
1990 s->session->master_key_length = s->method->ssl3_enc \
1991 -> generate_master_secret(s,
1992 s->session->master_key,
1995 memset(p, 0, n); /* clean up */
1999 /* Send empty client key exch message */
2004 /* First check the size of encoding and
2005 * allocate memory accordingly.
2008 EC_POINT_point2oct(clnt_ecdh->group,
2010 POINT_CONVERSION_UNCOMPRESSED,
2013 encodedPoint = (unsigned char *)
2014 OPENSSL_malloc(encoded_pt_len *
2015 sizeof(unsigned char));
2016 bn_ctx = BN_CTX_new();
2017 if ((encodedPoint == NULL) ||
2020 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
2024 /* Encode the public key */
2025 n = EC_POINT_point2oct(clnt_ecdh->group,
2027 POINT_CONVERSION_UNCOMPRESSED,
2028 encodedPoint, encoded_pt_len, bn_ctx);
2030 *p = n; /* length of encoded point */
2031 /* Encoded point will be copied here */
2033 /* copy the point */
2034 memcpy((unsigned char *)p, encodedPoint, n);
2035 /* increment n to account for length field */
2039 /* Free allocated memory */
2040 BN_CTX_free(bn_ctx);
2041 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2042 if (clnt_ecdh != NULL)
2044 /* group is shared */
2045 clnt_ecdh->group = NULL;
2046 EC_KEY_free(clnt_ecdh);
2048 EVP_PKEY_free(srvr_pub_pkey);
2050 #endif /* !OPENSSL_NO_ECDH */
2053 ssl3_send_alert(s, SSL3_AL_FATAL,
2054 SSL_AD_HANDSHAKE_FAILURE);
2055 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2056 ERR_R_INTERNAL_ERROR);
2060 *(d++)=SSL3_MT_CLIENT_KEY_EXCHANGE;
2063 s->state=SSL3_ST_CW_KEY_EXCH_B;
2064 /* number of bytes to write */
2069 /* SSL3_ST_CW_KEY_EXCH_B */
2070 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2072 #ifndef OPENSSL_NO_ECDH
2073 BN_CTX_free(bn_ctx);
2074 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2075 if (clnt_ecdh != NULL)
2077 /* group is shared */
2078 clnt_ecdh->group = NULL;
2079 EC_KEY_free(clnt_ecdh);
2081 EVP_PKEY_free(srvr_pub_pkey);
2086 static int ssl3_send_client_verify(SSL *s)
2088 unsigned char *p,*d;
2089 unsigned char data[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];
2091 #ifndef OPENSSL_NO_RSA
2095 #ifndef OPENSSL_NO_DSA
2099 if (s->state == SSL3_ST_CW_CERT_VRFY_A)
2101 d=(unsigned char *)s->init_buf->data;
2103 pkey=s->cert->key->privatekey;
2105 s->method->ssl3_enc->cert_verify_mac(s,&(s->s3->finish_dgst2),
2106 &(data[MD5_DIGEST_LENGTH]));
2108 #ifndef OPENSSL_NO_RSA
2109 if (pkey->type == EVP_PKEY_RSA)
2111 s->method->ssl3_enc->cert_verify_mac(s,
2112 &(s->s3->finish_dgst1),&(data[0]));
2113 if (RSA_sign(NID_md5_sha1, data,
2114 MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH,
2115 &(p[2]), &u, pkey->pkey.rsa) <= 0 )
2117 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_RSA_LIB);
2125 #ifndef OPENSSL_NO_DSA
2126 if (pkey->type == EVP_PKEY_DSA)
2128 if (!DSA_sign(pkey->save_type,
2129 &(data[MD5_DIGEST_LENGTH]),
2130 SHA_DIGEST_LENGTH,&(p[2]),
2131 (unsigned int *)&j,pkey->pkey.dsa))
2133 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_DSA_LIB);
2141 #ifndef OPENSSL_NO_ECDSA
2142 if (pkey->type == EVP_PKEY_EC)
2144 if (!ECDSA_sign(pkey->save_type,
2145 &(data[MD5_DIGEST_LENGTH]),
2146 SHA_DIGEST_LENGTH,&(p[2]),
2147 (unsigned int *)&j,pkey->pkey.eckey))
2149 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,
2159 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_INTERNAL_ERROR);
2162 *(d++)=SSL3_MT_CERTIFICATE_VERIFY;
2165 s->state=SSL3_ST_CW_CERT_VRFY_B;
2166 s->init_num=(int)n+4;
2169 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2174 static int ssl3_send_client_certificate(SSL *s)
2177 EVP_PKEY *pkey=NULL;
2181 if (s->state == SSL3_ST_CW_CERT_A)
2183 if ((s->cert == NULL) ||
2184 (s->cert->key->x509 == NULL) ||
2185 (s->cert->key->privatekey == NULL))
2186 s->state=SSL3_ST_CW_CERT_B;
2188 s->state=SSL3_ST_CW_CERT_C;
2191 /* We need to get a client cert */
2192 if (s->state == SSL3_ST_CW_CERT_B)
2194 /* If we get an error, we need to
2195 * ssl->rwstate=SSL_X509_LOOKUP; return(-1);
2196 * We then get retied later */
2198 if (s->ctx->client_cert_cb != NULL)
2199 i=s->ctx->client_cert_cb(s,&(x509),&(pkey));
2202 s->rwstate=SSL_X509_LOOKUP;
2205 s->rwstate=SSL_NOTHING;
2206 if ((i == 1) && (pkey != NULL) && (x509 != NULL))
2208 s->state=SSL3_ST_CW_CERT_B;
2209 if ( !SSL_use_certificate(s,x509) ||
2210 !SSL_use_PrivateKey(s,pkey))
2216 SSLerr(SSL_F_SSL3_SEND_CLIENT_CERTIFICATE,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK);
2219 if (x509 != NULL) X509_free(x509);
2220 if (pkey != NULL) EVP_PKEY_free(pkey);
2223 if (s->version == SSL3_VERSION)
2225 s->s3->tmp.cert_req=0;
2226 ssl3_send_alert(s,SSL3_AL_WARNING,SSL_AD_NO_CERTIFICATE);
2231 s->s3->tmp.cert_req=2;
2235 /* Ok, we have a cert */
2236 s->state=SSL3_ST_CW_CERT_C;
2239 if (s->state == SSL3_ST_CW_CERT_C)
2241 s->state=SSL3_ST_CW_CERT_D;
2242 l=ssl3_output_cert_chain(s,
2243 (s->s3->tmp.cert_req == 2)?NULL:s->cert->key->x509);
2247 /* SSL3_ST_CW_CERT_D */
2248 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2251 #define has_bits(i,m) (((i)&(m)) == (m))
2253 static int ssl3_check_cert_and_algorithm(SSL *s)
2257 EVP_PKEY *pkey=NULL;
2259 #ifndef OPENSSL_NO_RSA
2262 #ifndef OPENSSL_NO_DH
2266 sc=s->session->sess_cert;
2270 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,ERR_R_INTERNAL_ERROR);
2274 algs=s->s3->tmp.new_cipher->algorithms;
2276 /* we don't have a certificate */
2277 if (algs & (SSL_aDH|SSL_aNULL|SSL_aKRB5))
2280 #ifndef OPENSSL_NO_RSA
2281 rsa=s->session->sess_cert->peer_rsa_tmp;
2283 #ifndef OPENSSL_NO_DH
2284 dh=s->session->sess_cert->peer_dh_tmp;
2287 /* This is the passed certificate */
2289 idx=sc->peer_cert_type;
2290 #ifndef OPENSSL_NO_ECDH
2291 if (idx == SSL_PKEY_ECC)
2293 if (check_srvr_ecc_cert_and_alg(sc->peer_pkeys[idx].x509,
2294 s->s3->tmp.new_cipher) == 0)
2295 { /* check failed */
2296 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_BAD_ECC_CERT);
2305 pkey=X509_get_pubkey(sc->peer_pkeys[idx].x509);
2306 i=X509_certificate_type(sc->peer_pkeys[idx].x509,pkey);
2307 EVP_PKEY_free(pkey);
2310 /* Check that we have a certificate if we require one */
2311 if ((algs & SSL_aRSA) && !has_bits(i,EVP_PK_RSA|EVP_PKT_SIGN))
2313 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_SIGNING_CERT);
2316 #ifndef OPENSSL_NO_DSA
2317 else if ((algs & SSL_aDSS) && !has_bits(i,EVP_PK_DSA|EVP_PKT_SIGN))
2319 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DSA_SIGNING_CERT);
2323 #ifndef OPENSSL_NO_RSA
2324 if ((algs & SSL_kRSA) &&
2325 !(has_bits(i,EVP_PK_RSA|EVP_PKT_ENC) || (rsa != NULL)))
2327 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_ENCRYPTING_CERT);
2331 #ifndef OPENSSL_NO_DH
2332 if ((algs & SSL_kEDH) &&
2333 !(has_bits(i,EVP_PK_DH|EVP_PKT_EXCH) || (dh != NULL)))
2335 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_KEY);
2338 else if ((algs & SSL_kDHr) && !has_bits(i,EVP_PK_DH|EVP_PKS_RSA))
2340 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_RSA_CERT);
2343 #ifndef OPENSSL_NO_DSA
2344 else if ((algs & SSL_kDHd) && !has_bits(i,EVP_PK_DH|EVP_PKS_DSA))
2346 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_DSA_CERT);
2352 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) && !has_bits(i,EVP_PKT_EXP))
2354 #ifndef OPENSSL_NO_RSA
2355 if (algs & SSL_kRSA)
2358 || RSA_size(rsa)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2360 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_RSA_KEY);
2366 #ifndef OPENSSL_NO_DH
2367 if (algs & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
2370 || DH_size(dh)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2372 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_DH_KEY);
2379 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);
2385 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
2391 #ifndef OPENSSL_NO_ECDH
2392 /* This is the complement of nid2curve_id in s3_srvr.c. */
2393 static int curve_id2nid(int curve_id)
2395 /* ECC curves from draft-ietf-tls-ecc-01.txt (Mar 15, 2001)
2396 * (no changes in draft-ietf-tls-ecc-03.txt [June 2003]) */
2397 static int nid_list[26] =
2400 NID_sect163k1, /* sect163k1 (1) */
2401 NID_sect163r1, /* sect163r1 (2) */
2402 NID_sect163r2, /* sect163r2 (3) */
2403 NID_sect193r1, /* sect193r1 (4) */
2404 NID_sect193r2, /* sect193r2 (5) */
2405 NID_sect233k1, /* sect233k1 (6) */
2406 NID_sect233r1, /* sect233r1 (7) */
2407 NID_sect239k1, /* sect239k1 (8) */
2408 NID_sect283k1, /* sect283k1 (9) */
2409 NID_sect283r1, /* sect283r1 (10) */
2410 NID_sect409k1, /* sect409k1 (11) */
2411 NID_sect409r1, /* sect409r1 (12) */
2412 NID_sect571k1, /* sect571k1 (13) */
2413 NID_sect571r1, /* sect571r1 (14) */
2414 NID_secp160k1, /* secp160k1 (15) */
2415 NID_secp160r1, /* secp160r1 (16) */
2416 NID_secp160r2, /* secp160r2 (17) */
2417 NID_secp192k1, /* secp192k1 (18) */
2418 NID_X9_62_prime192v1, /* secp192r1 (19) */
2419 NID_secp224k1, /* secp224k1 (20) */
2420 NID_secp224r1, /* secp224r1 (21) */
2421 NID_secp256k1, /* secp256k1 (22) */
2422 NID_X9_62_prime256v1, /* secp256r1 (23) */
2423 NID_secp384r1, /* secp384r1 (24) */
2424 NID_secp521r1 /* secp521r1 (25) */
2427 if ((curve_id < 1) || (curve_id > 25)) return 0;
2429 return nid_list[curve_id];