2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
58 /* ====================================================================
59 * Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved.
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
87 * 6. Redistributions of any form whatsoever must retain the following
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
111 /* ====================================================================
112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
114 * Portions of the attached software ("Contribution") are developed by
115 * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
117 * The Contribution is licensed pursuant to the OpenSSL open source
118 * license provided above.
120 * ECC cipher suite support in OpenSSL originally written by
121 * Vipul Gupta and Sumit Gupta of Sun Microsystems Laboratories.
126 #include "ssl_locl.h"
127 #include "kssl_lcl.h"
128 #include <openssl/buffer.h>
129 #include <openssl/rand.h>
130 #include <openssl/objects.h>
131 #include <openssl/evp.h>
132 #include <openssl/md5.h>
133 #ifndef OPENSSL_NO_DH
134 #include <openssl/dh.h>
136 #include <openssl/bn.h>
138 static SSL_METHOD *ssl3_get_client_method(int ver);
139 static int ca_dn_cmp(const X509_NAME * const *a,const X509_NAME * const *b);
141 #ifndef OPENSSL_NO_ECDH
142 static int curve_id2nid(int curve_id);
143 int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs);
146 static SSL_METHOD *ssl3_get_client_method(int ver)
148 if (ver == SSL3_VERSION)
149 return(SSLv3_client_method());
154 IMPLEMENT_ssl3_meth_func(SSLv3_client_method,
155 ssl_undefined_function,
157 ssl3_get_client_method)
159 int ssl3_connect(SSL *s)
162 unsigned long Time=time(NULL),l;
164 void (*cb)(const SSL *ssl,int type,int val)=NULL;
166 int new_state,state,skip=0;;
168 RAND_add(&Time,sizeof(Time),0);
172 if (s->info_callback != NULL)
174 else if (s->ctx->info_callback != NULL)
175 cb=s->ctx->info_callback;
178 if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
186 case SSL_ST_RENEGOTIATE:
188 s->state=SSL_ST_CONNECT;
189 s->ctx->stats.sess_connect_renegotiate++;
193 case SSL_ST_BEFORE|SSL_ST_CONNECT:
194 case SSL_ST_OK|SSL_ST_CONNECT:
197 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
199 if ((s->version & 0xff00 ) != 0x0300)
201 SSLerr(SSL_F_SSL3_CONNECT, ERR_R_INTERNAL_ERROR);
206 /* s->version=SSL3_VERSION; */
207 s->type=SSL_ST_CONNECT;
209 if (s->init_buf == NULL)
211 if ((buf=BUF_MEM_new()) == NULL)
216 if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))
225 if (!ssl3_setup_buffers(s)) { ret= -1; goto end; }
227 /* setup buffing BIO */
228 if (!ssl_init_wbio_buffer(s,0)) { ret= -1; goto end; }
230 /* don't push the buffering BIO quite yet */
232 ssl3_init_finished_mac(s);
234 s->state=SSL3_ST_CW_CLNT_HELLO_A;
235 s->ctx->stats.sess_connect++;
239 case SSL3_ST_CW_CLNT_HELLO_A:
240 case SSL3_ST_CW_CLNT_HELLO_B:
243 ret=ssl3_client_hello(s);
244 if (ret <= 0) goto end;
245 s->state=SSL3_ST_CR_SRVR_HELLO_A;
248 /* turn on buffering for the next lot of output */
249 if (s->bbio != s->wbio)
250 s->wbio=BIO_push(s->bbio,s->wbio);
254 case SSL3_ST_CR_SRVR_HELLO_A:
255 case SSL3_ST_CR_SRVR_HELLO_B:
256 ret=ssl3_get_server_hello(s);
257 if (ret <= 0) goto end;
259 s->state=SSL3_ST_CR_FINISHED_A;
261 s->state=SSL3_ST_CR_CERT_A;
265 case SSL3_ST_CR_CERT_A:
266 case SSL3_ST_CR_CERT_B:
267 /* Check if it is anon DH/ECDH */
268 if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
270 ret=ssl3_get_server_certificate(s);
271 if (ret <= 0) goto end;
275 s->state=SSL3_ST_CR_KEY_EXCH_A;
279 case SSL3_ST_CR_KEY_EXCH_A:
280 case SSL3_ST_CR_KEY_EXCH_B:
281 ret=ssl3_get_key_exchange(s);
282 if (ret <= 0) goto end;
283 s->state=SSL3_ST_CR_CERT_REQ_A;
286 /* at this point we check that we have the
287 * required stuff from the server */
288 if (!ssl3_check_cert_and_algorithm(s))
295 case SSL3_ST_CR_CERT_REQ_A:
296 case SSL3_ST_CR_CERT_REQ_B:
297 ret=ssl3_get_certificate_request(s);
298 if (ret <= 0) goto end;
299 s->state=SSL3_ST_CR_SRVR_DONE_A;
303 case SSL3_ST_CR_SRVR_DONE_A:
304 case SSL3_ST_CR_SRVR_DONE_B:
305 ret=ssl3_get_server_done(s);
306 if (ret <= 0) goto end;
307 if (s->s3->tmp.cert_req)
308 s->state=SSL3_ST_CW_CERT_A;
310 s->state=SSL3_ST_CW_KEY_EXCH_A;
315 case SSL3_ST_CW_CERT_A:
316 case SSL3_ST_CW_CERT_B:
317 case SSL3_ST_CW_CERT_C:
318 case SSL3_ST_CW_CERT_D:
319 ret=ssl3_send_client_certificate(s);
320 if (ret <= 0) goto end;
321 s->state=SSL3_ST_CW_KEY_EXCH_A;
325 case SSL3_ST_CW_KEY_EXCH_A:
326 case SSL3_ST_CW_KEY_EXCH_B:
327 ret=ssl3_send_client_key_exchange(s);
328 if (ret <= 0) goto end;
329 l=s->s3->tmp.new_cipher->algorithms;
330 /* EAY EAY EAY need to check for DH fix cert
332 /* For TLS, cert_req is set to 2, so a cert chain
333 * of nothing is sent, but no verify packet is sent */
334 /* XXX: For now, we do not support client
335 * authentication in ECDH cipher suites with
336 * ECDH (rather than ECDSA) certificates.
337 * We need to skip the certificate verify
338 * message when client's ECDH public key is sent
339 * inside the client certificate.
341 if (s->s3->tmp.cert_req == 1)
343 s->state=SSL3_ST_CW_CERT_VRFY_A;
347 s->state=SSL3_ST_CW_CHANGE_A;
348 s->s3->change_cipher_spec=0;
354 case SSL3_ST_CW_CERT_VRFY_A:
355 case SSL3_ST_CW_CERT_VRFY_B:
356 ret=ssl3_send_client_verify(s);
357 if (ret <= 0) goto end;
358 s->state=SSL3_ST_CW_CHANGE_A;
360 s->s3->change_cipher_spec=0;
363 case SSL3_ST_CW_CHANGE_A:
364 case SSL3_ST_CW_CHANGE_B:
365 ret=ssl3_send_change_cipher_spec(s,
366 SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B);
367 if (ret <= 0) goto end;
368 s->state=SSL3_ST_CW_FINISHED_A;
371 s->session->cipher=s->s3->tmp.new_cipher;
372 if (s->s3->tmp.new_compression == NULL)
373 s->session->compress_meth=0;
375 s->session->compress_meth=
376 s->s3->tmp.new_compression->id;
377 if (!s->method->ssl3_enc->setup_key_block(s))
383 if (!s->method->ssl3_enc->change_cipher_state(s,
384 SSL3_CHANGE_CIPHER_CLIENT_WRITE))
392 case SSL3_ST_CW_FINISHED_A:
393 case SSL3_ST_CW_FINISHED_B:
394 ret=ssl3_send_finished(s,
395 SSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B,
396 s->method->ssl3_enc->client_finished_label,
397 s->method->ssl3_enc->client_finished_label_len);
398 if (ret <= 0) goto end;
399 s->state=SSL3_ST_CW_FLUSH;
402 s->s3->flags&= ~SSL3_FLAGS_POP_BUFFER;
405 s->s3->tmp.next_state=SSL_ST_OK;
406 if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED)
409 s->s3->flags|=SSL3_FLAGS_POP_BUFFER;
410 s->s3->delay_buf_pop_ret=0;
415 s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A;
420 case SSL3_ST_CR_FINISHED_A:
421 case SSL3_ST_CR_FINISHED_B:
423 ret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A,
424 SSL3_ST_CR_FINISHED_B);
425 if (ret <= 0) goto end;
428 s->state=SSL3_ST_CW_CHANGE_A;
434 case SSL3_ST_CW_FLUSH:
435 /* number of bytes to be flushed */
436 num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);
439 s->rwstate=SSL_WRITING;
440 num1=BIO_flush(s->wbio);
441 if (num1 <= 0) { ret= -1; goto end; }
442 s->rwstate=SSL_NOTHING;
445 s->state=s->s3->tmp.next_state;
449 /* clean a few things up */
450 ssl3_cleanup_key_block(s);
452 if (s->init_buf != NULL)
454 BUF_MEM_free(s->init_buf);
458 /* If we are not 'joining' the last two packets,
459 * remove the buffering now */
460 if (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER))
461 ssl_free_wbio_buffer(s);
462 /* else do it later in ssl3_write */
467 ssl_update_cache(s,SSL_SESS_CACHE_CLIENT);
468 if (s->hit) s->ctx->stats.sess_hit++;
472 s->handshake_func=ssl3_connect;
473 s->ctx->stats.sess_connect_good++;
475 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);
481 SSLerr(SSL_F_SSL3_CONNECT,SSL_R_UNKNOWN_STATE);
487 /* did we do anything */
488 if (!s->s3->tmp.reuse_message && !skip)
492 if ((ret=BIO_flush(s->wbio)) <= 0)
496 if ((cb != NULL) && (s->state != state))
500 cb(s,SSL_CB_CONNECT_LOOP,1);
511 cb(s,SSL_CB_CONNECT_EXIT,ret);
516 int ssl3_client_hello(SSL *s)
521 unsigned long Time,l;
524 buf=(unsigned char *)s->init_buf->data;
525 if (s->state == SSL3_ST_CW_CLNT_HELLO_A)
527 if ((s->session == NULL) ||
528 (s->session->ssl_version != s->version) ||
529 (s->session->not_resumable))
531 if (!ssl_get_new_session(s,0))
534 /* else use the pre-loaded session */
536 p=s->s3->client_random;
537 Time=time(NULL); /* Time */
539 if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0)
542 /* Do the message type and length last */
545 *(p++)=s->version>>8;
546 *(p++)=s->version&0xff;
547 s->client_version=s->version;
550 memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
557 i=s->session->session_id_length;
561 if (i > (int)sizeof(s->session->session_id))
563 SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
566 memcpy(p,s->session->session_id,i);
570 /* Ciphers supported */
571 i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]),0);
574 SSLerr(SSL_F_SSL3_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
581 if (s->ctx->comp_methods == NULL)
584 j=sk_SSL_COMP_num(s->ctx->comp_methods);
588 comp=sk_SSL_COMP_value(s->ctx->comp_methods,i);
591 *(p++)=0; /* Add the NULL method */
595 *(d++)=SSL3_MT_CLIENT_HELLO;
598 s->state=SSL3_ST_CW_CLNT_HELLO_B;
599 /* number of bytes to write */
604 /* SSL3_ST_CW_CLNT_HELLO_B */
605 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
610 int ssl3_get_server_hello(SSL *s)
612 STACK_OF(SSL_CIPHER) *sk;
620 n=s->method->ssl_get_message(s,
621 SSL3_ST_CR_SRVR_HELLO_A,
622 SSL3_ST_CR_SRVR_HELLO_B,
627 if (!ok) return((int)n);
629 if ( SSL_version(s) == DTLS1_VERSION)
631 if ( s->s3->tmp.message_type == DTLS1_MT_HELLO_VERIFY_REQUEST)
633 if ( s->d1->send_cookie == 0)
635 s->s3->tmp.reuse_message = 1;
638 else /* already sent a cookie */
640 al=SSL_AD_UNEXPECTED_MESSAGE;
641 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);
647 if ( s->s3->tmp.message_type != SSL3_MT_SERVER_HELLO)
649 al=SSL_AD_UNEXPECTED_MESSAGE;
650 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);
654 d=p=(unsigned char *)s->init_msg;
656 if ((p[0] != (s->version>>8)) || (p[1] != (s->version&0xff)))
658 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_SSL_VERSION);
659 s->version=(s->version&0xff00)|p[1];
660 al=SSL_AD_PROTOCOL_VERSION;
665 /* load the server hello data */
666 /* load the server random */
667 memcpy(s->s3->server_random,p,SSL3_RANDOM_SIZE);
670 /* get the session-id */
673 if ((j > sizeof s->session->session_id) || (j > SSL3_SESSION_ID_SIZE))
675 al=SSL_AD_ILLEGAL_PARAMETER;
676 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SSL3_SESSION_ID_TOO_LONG);
680 if (j != 0 && j == s->session->session_id_length
681 && memcmp(p,s->session->session_id,j) == 0)
683 if(s->sid_ctx_length != s->session->sid_ctx_length
684 || memcmp(s->session->sid_ctx,s->sid_ctx,s->sid_ctx_length))
686 /* actually a client application bug */
687 al=SSL_AD_ILLEGAL_PARAMETER;
688 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);
693 else /* a miss or crap from the other end */
695 /* If we were trying for session-id reuse, make a new
696 * SSL_SESSION so we don't stuff up other people */
698 if (s->session->session_id_length > 0)
700 if (!ssl_get_new_session(s,0))
702 al=SSL_AD_INTERNAL_ERROR;
706 s->session->session_id_length=j;
707 memcpy(s->session->session_id,p,j); /* j could be 0 */
710 c=ssl_get_cipher_by_char(s,p);
714 al=SSL_AD_ILLEGAL_PARAMETER;
715 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNKNOWN_CIPHER_RETURNED);
718 p+=ssl_put_cipher_by_char(s,NULL,NULL);
720 sk=ssl_get_ciphers_by_id(s);
721 i=sk_SSL_CIPHER_find(sk,c);
724 /* we did not say we would use this cipher */
725 al=SSL_AD_ILLEGAL_PARAMETER;
726 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_CIPHER_RETURNED);
730 /* Depending on the session caching (internal/external), the cipher
731 and/or cipher_id values may not be set. Make sure that
732 cipher_id is set and use it for comparison. */
733 if (s->session->cipher)
734 s->session->cipher_id = s->session->cipher->id;
735 if (s->hit && (s->session->cipher_id != c->id))
738 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG))
740 al=SSL_AD_ILLEGAL_PARAMETER;
741 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED);
745 s->s3->tmp.new_cipher=c;
747 /* lets get the compression algorithm */
753 comp=ssl3_comp_find(s->ctx->comp_methods,j);
755 if ((j != 0) && (comp == NULL))
757 al=SSL_AD_ILLEGAL_PARAMETER;
758 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
763 s->s3->tmp.new_compression=comp;
768 /* wrong packet length */
769 al=SSL_AD_DECODE_ERROR;
770 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_PACKET_LENGTH);
776 ssl3_send_alert(s,SSL3_AL_FATAL,al);
781 int ssl3_get_server_certificate(SSL *s)
784 unsigned long n,nc,llen,l;
786 const unsigned char *q,*p;
788 STACK_OF(X509) *sk=NULL;
791 int need_cert = 1; /* VRS: 0=> will allow null cert if auth == KRB5 */
793 n=s->method->ssl_get_message(s,
800 if (!ok) return((int)n);
802 if (s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE)
804 s->s3->tmp.reuse_message=1;
808 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE)
810 al=SSL_AD_UNEXPECTED_MESSAGE;
811 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_BAD_MESSAGE_TYPE);
814 p=d=(unsigned char *)s->init_msg;
816 if ((sk=sk_X509_new_null()) == NULL)
818 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
825 al=SSL_AD_DECODE_ERROR;
826 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_LENGTH_MISMATCH);
829 for (nc=0; nc<llen; )
834 al=SSL_AD_DECODE_ERROR;
835 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
840 x=d2i_X509(NULL,&q,l);
843 al=SSL_AD_BAD_CERTIFICATE;
844 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_ASN1_LIB);
849 al=SSL_AD_DECODE_ERROR;
850 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
853 if (!sk_X509_push(sk,x))
855 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
863 i=ssl_verify_cert_chain(s,sk);
864 if ((s->verify_mode != SSL_VERIFY_NONE) && (!i)
865 #ifndef OPENSSL_NO_KRB5
866 && (s->s3->tmp.new_cipher->algorithms & (SSL_MKEY_MASK|SSL_AUTH_MASK))
867 != (SSL_aKRB5|SSL_kKRB5)
868 #endif /* OPENSSL_NO_KRB5 */
871 al=ssl_verify_alarm_type(s->verify_result);
872 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED);
875 ERR_clear_error(); /* but we keep s->verify_result */
877 sc=ssl_sess_cert_new();
878 if (sc == NULL) goto err;
880 if (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert);
881 s->session->sess_cert=sc;
884 /* Inconsistency alert: cert_chain does include the peer's
885 * certificate, which we don't include in s3_srvr.c */
886 x=sk_X509_value(sk,0);
888 /* VRS 19990621: possible memory leak; sk=null ==> !sk_pop_free() @end*/
890 pkey=X509_get_pubkey(x);
892 /* VRS: allow null cert if auth == KRB5 */
893 need_cert = ((s->s3->tmp.new_cipher->algorithms
894 & (SSL_MKEY_MASK|SSL_AUTH_MASK))
895 == (SSL_aKRB5|SSL_kKRB5))? 0: 1;
898 printf("pkey,x = %p, %p\n", pkey,x);
899 printf("ssl_cert_type(x,pkey) = %d\n", ssl_cert_type(x,pkey));
900 printf("cipher, alg, nc = %s, %lx, %d\n", s->s3->tmp.new_cipher->name,
901 s->s3->tmp.new_cipher->algorithms, need_cert);
902 #endif /* KSSL_DEBUG */
904 if (need_cert && ((pkey == NULL) || EVP_PKEY_missing_parameters(pkey)))
908 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
909 SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS);
913 i=ssl_cert_type(x,pkey);
914 if (need_cert && i < 0)
918 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
919 SSL_R_UNKNOWN_CERTIFICATE_TYPE);
925 sc->peer_cert_type=i;
926 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
927 /* Why would the following ever happen?
928 * We just created sc a couple of lines ago. */
929 if (sc->peer_pkeys[i].x509 != NULL)
930 X509_free(sc->peer_pkeys[i].x509);
931 sc->peer_pkeys[i].x509=x;
932 sc->peer_key= &(sc->peer_pkeys[i]);
934 if (s->session->peer != NULL)
935 X509_free(s->session->peer);
936 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
941 sc->peer_cert_type=i;
944 if (s->session->peer != NULL)
945 X509_free(s->session->peer);
946 s->session->peer=NULL;
948 s->session->verify_result = s->verify_result;
956 ssl3_send_alert(s,SSL3_AL_FATAL,al);
961 sk_X509_pop_free(sk,X509_free);
965 int ssl3_get_key_exchange(SSL *s)
967 #ifndef OPENSSL_NO_RSA
968 unsigned char *q,md_buf[EVP_MAX_MD_SIZE*2];
971 unsigned char *param,*p;
972 int al,i,j,param_len,ok;
975 #ifndef OPENSSL_NO_RSA
978 #ifndef OPENSSL_NO_DH
981 #ifndef OPENSSL_NO_ECDH
983 BN_CTX *bn_ctx = NULL;
984 EC_POINT *srvr_ecpoint = NULL;
986 int encoded_pt_len = 0;
989 /* use same message size as in ssl3_get_certificate_request()
990 * as ServerKeyExchange message may be skipped */
991 n=s->method->ssl_get_message(s,
992 SSL3_ST_CR_KEY_EXCH_A,
993 SSL3_ST_CR_KEY_EXCH_B,
998 if (!ok) return((int)n);
1000 if (s->s3->tmp.message_type != SSL3_MT_SERVER_KEY_EXCHANGE)
1002 s->s3->tmp.reuse_message=1;
1006 param=p=(unsigned char *)s->init_msg;
1008 if (s->session->sess_cert != NULL)
1010 #ifndef OPENSSL_NO_RSA
1011 if (s->session->sess_cert->peer_rsa_tmp != NULL)
1013 RSA_free(s->session->sess_cert->peer_rsa_tmp);
1014 s->session->sess_cert->peer_rsa_tmp=NULL;
1017 #ifndef OPENSSL_NO_DH
1018 if (s->session->sess_cert->peer_dh_tmp)
1020 DH_free(s->session->sess_cert->peer_dh_tmp);
1021 s->session->sess_cert->peer_dh_tmp=NULL;
1024 #ifndef OPENSSL_NO_ECDH
1025 if (s->session->sess_cert->peer_ecdh_tmp)
1027 EC_KEY_free(s->session->sess_cert->peer_ecdh_tmp);
1028 s->session->sess_cert->peer_ecdh_tmp=NULL;
1034 s->session->sess_cert=ssl_sess_cert_new();
1038 alg=s->s3->tmp.new_cipher->algorithms;
1039 EVP_MD_CTX_init(&md_ctx);
1041 #ifndef OPENSSL_NO_RSA
1044 if ((rsa=RSA_new()) == NULL)
1046 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1053 al=SSL_AD_DECODE_ERROR;
1054 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_MODULUS_LENGTH);
1057 if (!(rsa->n=BN_bin2bn(p,i,rsa->n)))
1059 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1068 al=SSL_AD_DECODE_ERROR;
1069 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_E_LENGTH);
1072 if (!(rsa->e=BN_bin2bn(p,i,rsa->e)))
1074 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1080 /* this should be because we are using an export cipher */
1082 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1085 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1088 s->session->sess_cert->peer_rsa_tmp=rsa;
1091 #else /* OPENSSL_NO_RSA */
1095 #ifndef OPENSSL_NO_DH
1096 else if (alg & SSL_kEDH)
1098 if ((dh=DH_new()) == NULL)
1100 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_DH_LIB);
1107 al=SSL_AD_DECODE_ERROR;
1108 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_P_LENGTH);
1111 if (!(dh->p=BN_bin2bn(p,i,NULL)))
1113 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1122 al=SSL_AD_DECODE_ERROR;
1123 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_G_LENGTH);
1126 if (!(dh->g=BN_bin2bn(p,i,NULL)))
1128 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1137 al=SSL_AD_DECODE_ERROR;
1138 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_PUB_KEY_LENGTH);
1141 if (!(dh->pub_key=BN_bin2bn(p,i,NULL)))
1143 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1149 #ifndef OPENSSL_NO_RSA
1151 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1156 #ifndef OPENSSL_NO_DSA
1157 else if (alg & SSL_aDSS)
1158 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].x509);
1160 /* else anonymous DH, so no certificate or pkey. */
1162 s->session->sess_cert->peer_dh_tmp=dh;
1165 else if ((alg & SSL_kDHr) || (alg & SSL_kDHd))
1167 al=SSL_AD_ILLEGAL_PARAMETER;
1168 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
1171 #endif /* !OPENSSL_NO_DH */
1173 #ifndef OPENSSL_NO_ECDH
1174 else if (alg & SSL_kECDHE)
1177 const EC_GROUP *group;
1179 if ((ecdh=EC_KEY_new()) == NULL)
1181 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1185 /* Extract elliptic curve parameters and the
1186 * server's ephemeral ECDH public key.
1187 * Keep accumulating lengths of various components in
1188 * param_len and make sure it never exceeds n.
1191 /* XXX: For now we only support named (not generic) curves
1192 * and the ECParameters in this case is just two bytes.
1195 if ((param_len > n) ||
1196 (*p != NAMED_CURVE_TYPE) ||
1197 ((curve_nid = curve_id2nid(*(p + 1))) == 0))
1199 al=SSL_AD_INTERNAL_ERROR;
1200 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS);
1204 ngroup = EC_GROUP_new_by_curve_name(curve_nid);
1207 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
1210 if (EC_KEY_set_group(ecdh, ngroup) == 0)
1212 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
1215 EC_GROUP_free(ngroup);
1217 group = EC_KEY_get0_group(ecdh);
1219 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
1220 (EC_GROUP_get_degree(group) > 163))
1222 al=SSL_AD_EXPORT_RESTRICTION;
1223 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
1229 /* Next, get the encoded ECPoint */
1230 if (((srvr_ecpoint = EC_POINT_new(group)) == NULL) ||
1231 ((bn_ctx = BN_CTX_new()) == NULL))
1233 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1237 encoded_pt_len = *p; /* length of encoded point */
1239 param_len += (1 + encoded_pt_len);
1240 if ((param_len > n) ||
1241 (EC_POINT_oct2point(group, srvr_ecpoint,
1242 p, encoded_pt_len, bn_ctx) == 0))
1244 al=SSL_AD_DECODE_ERROR;
1245 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_ECPOINT);
1252 /* The ECC/TLS specification does not mention
1253 * the use of DSA to sign ECParameters in the server
1254 * key exchange message. We do support RSA and ECDSA.
1257 #ifndef OPENSSL_NO_RSA
1258 else if (alg & SSL_aRSA)
1259 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1261 #ifndef OPENSSL_NO_ECDSA
1262 else if (alg & SSL_aECDSA)
1263 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
1265 /* else anonymous ECDH, so no certificate or pkey. */
1266 EC_KEY_set_public_key(ecdh, srvr_ecpoint);
1267 s->session->sess_cert->peer_ecdh_tmp=ecdh;
1269 BN_CTX_free(bn_ctx);
1270 EC_POINT_free(srvr_ecpoint);
1271 srvr_ecpoint = NULL;
1273 else if (alg & SSL_kECDH)
1275 al=SSL_AD_UNEXPECTED_MESSAGE;
1276 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNEXPECTED_MESSAGE);
1279 #endif /* !OPENSSL_NO_ECDH */
1282 al=SSL_AD_HANDSHAKE_FAILURE;
1283 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
1288 /* p points to the next byte, there are 'n' bytes left */
1290 /* if it was signed, check the signature */
1295 j=EVP_PKEY_size(pkey);
1297 if ((i != n) || (n > j) || (n <= 0))
1299 /* wrong packet length */
1300 al=SSL_AD_DECODE_ERROR;
1301 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_WRONG_SIGNATURE_LENGTH);
1305 #ifndef OPENSSL_NO_RSA
1306 if (pkey->type == EVP_PKEY_RSA)
1312 for (num=2; num > 0; num--)
1314 EVP_DigestInit_ex(&md_ctx,(num == 2)
1315 ?s->ctx->md5:s->ctx->sha1, NULL);
1316 EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1317 EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1318 EVP_DigestUpdate(&md_ctx,param,param_len);
1319 EVP_DigestFinal_ex(&md_ctx,q,(unsigned int *)&i);
1323 i=RSA_verify(NID_md5_sha1, md_buf, j, p, n,
1327 al=SSL_AD_DECRYPT_ERROR;
1328 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_DECRYPT);
1334 al=SSL_AD_DECRYPT_ERROR;
1335 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1341 #ifndef OPENSSL_NO_DSA
1342 if (pkey->type == EVP_PKEY_DSA)
1345 EVP_VerifyInit_ex(&md_ctx,EVP_dss1(), NULL);
1346 EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1347 EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1348 EVP_VerifyUpdate(&md_ctx,param,param_len);
1349 if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey))
1352 al=SSL_AD_DECRYPT_ERROR;
1353 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1359 #ifndef OPENSSL_NO_ECDSA
1360 if (pkey->type == EVP_PKEY_EC)
1362 /* let's do ECDSA */
1363 EVP_VerifyInit_ex(&md_ctx,EVP_ecdsa(), NULL);
1364 EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1365 EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1366 EVP_VerifyUpdate(&md_ctx,param,param_len);
1367 if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey))
1370 al=SSL_AD_DECRYPT_ERROR;
1371 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1378 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1384 /* still data left over */
1385 if (!(alg & SSL_aNULL))
1387 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1392 al=SSL_AD_DECODE_ERROR;
1393 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_EXTRA_DATA_IN_MESSAGE);
1397 EVP_PKEY_free(pkey);
1398 EVP_MD_CTX_cleanup(&md_ctx);
1401 ssl3_send_alert(s,SSL3_AL_FATAL,al);
1403 EVP_PKEY_free(pkey);
1404 #ifndef OPENSSL_NO_RSA
1408 #ifndef OPENSSL_NO_DH
1412 #ifndef OPENSSL_NO_ECDH
1413 BN_CTX_free(bn_ctx);
1414 EC_POINT_free(srvr_ecpoint);
1418 EVP_MD_CTX_cleanup(&md_ctx);
1422 int ssl3_get_certificate_request(SSL *s)
1425 unsigned long n,nc,l;
1426 unsigned int llen,ctype_num,i;
1428 const unsigned char *p,*q;
1430 STACK_OF(X509_NAME) *ca_sk=NULL;
1432 n=s->method->ssl_get_message(s,
1433 SSL3_ST_CR_CERT_REQ_A,
1434 SSL3_ST_CR_CERT_REQ_B,
1439 if (!ok) return((int)n);
1441 s->s3->tmp.cert_req=0;
1443 if (s->s3->tmp.message_type == SSL3_MT_SERVER_DONE)
1445 s->s3->tmp.reuse_message=1;
1449 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE_REQUEST)
1451 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
1452 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_WRONG_MESSAGE_TYPE);
1456 /* TLS does not like anon-DH with client cert */
1457 if (s->version > SSL3_VERSION)
1459 l=s->s3->tmp.new_cipher->algorithms;
1462 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
1463 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER);
1468 p=d=(unsigned char *)s->init_msg;
1470 if ((ca_sk=sk_X509_NAME_new(ca_dn_cmp)) == NULL)
1472 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
1476 /* get the certificate types */
1478 if (ctype_num > SSL3_CT_NUMBER)
1479 ctype_num=SSL3_CT_NUMBER;
1480 for (i=0; i<ctype_num; i++)
1481 s->s3->tmp.ctype[i]= p[i];
1484 /* get the CA RDNs */
1489 out=fopen("/tmp/vsign.der","w");
1490 fwrite(p,1,llen,out);
1495 if ((llen+ctype_num+2+1) != n)
1497 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1498 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_LENGTH_MISMATCH);
1502 for (nc=0; nc<llen; )
1505 if ((l+nc+2) > llen)
1507 if ((s->options & SSL_OP_NETSCAPE_CA_DN_BUG))
1508 goto cont; /* netscape bugs */
1509 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1510 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_TOO_LONG);
1516 if ((xn=d2i_X509_NAME(NULL,&q,l)) == NULL)
1518 /* If netscape tolerance is on, ignore errors */
1519 if (s->options & SSL_OP_NETSCAPE_CA_DN_BUG)
1523 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1524 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_ASN1_LIB);
1531 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1532 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_LENGTH_MISMATCH);
1535 if (!sk_X509_NAME_push(ca_sk,xn))
1537 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
1551 /* we should setup a certificate to return.... */
1552 s->s3->tmp.cert_req=1;
1553 s->s3->tmp.ctype_num=ctype_num;
1554 if (s->s3->tmp.ca_names != NULL)
1555 sk_X509_NAME_pop_free(s->s3->tmp.ca_names,X509_NAME_free);
1556 s->s3->tmp.ca_names=ca_sk;
1561 if (ca_sk != NULL) sk_X509_NAME_pop_free(ca_sk,X509_NAME_free);
1565 static int ca_dn_cmp(const X509_NAME * const *a, const X509_NAME * const *b)
1567 return(X509_NAME_cmp(*a,*b));
1570 int ssl3_get_server_done(SSL *s)
1575 n=s->method->ssl_get_message(s,
1576 SSL3_ST_CR_SRVR_DONE_A,
1577 SSL3_ST_CR_SRVR_DONE_B,
1578 SSL3_MT_SERVER_DONE,
1579 30, /* should be very small, like 0 :-) */
1582 if (!ok) return((int)n);
1585 /* should contain no data */
1586 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1587 SSLerr(SSL_F_SSL3_GET_SERVER_DONE,SSL_R_LENGTH_MISMATCH);
1595 #ifndef OPENSSL_NO_ECDH
1596 static const int KDF1_SHA1_len = 20;
1597 static void *KDF1_SHA1(const void *in, size_t inlen, void *out, size_t *outlen)
1599 #ifndef OPENSSL_NO_SHA
1600 if (*outlen < SHA_DIGEST_LENGTH)
1603 *outlen = SHA_DIGEST_LENGTH;
1604 return SHA1(in, inlen, out);
1607 #endif /* OPENSSL_NO_SHA */
1609 #endif /* OPENSSL_NO_ECDH */
1611 int ssl3_send_client_key_exchange(SSL *s)
1613 unsigned char *p,*d;
1616 #ifndef OPENSSL_NO_RSA
1618 EVP_PKEY *pkey=NULL;
1620 #ifndef OPENSSL_NO_KRB5
1622 #endif /* OPENSSL_NO_KRB5 */
1623 #ifndef OPENSSL_NO_ECDH
1624 EC_KEY *clnt_ecdh = NULL;
1625 const EC_POINT *srvr_ecpoint = NULL;
1626 EVP_PKEY *srvr_pub_pkey = NULL;
1627 unsigned char *encodedPoint = NULL;
1628 int encoded_pt_len = 0;
1629 BN_CTX * bn_ctx = NULL;
1632 if (s->state == SSL3_ST_CW_KEY_EXCH_A)
1634 d=(unsigned char *)s->init_buf->data;
1637 l=s->s3->tmp.new_cipher->algorithms;
1639 /* Fool emacs indentation */
1641 #ifndef OPENSSL_NO_RSA
1642 else if (l & SSL_kRSA)
1645 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
1647 if (s->session->sess_cert->peer_rsa_tmp != NULL)
1648 rsa=s->session->sess_cert->peer_rsa_tmp;
1651 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1652 if ((pkey == NULL) ||
1653 (pkey->type != EVP_PKEY_RSA) ||
1654 (pkey->pkey.rsa == NULL))
1656 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1660 EVP_PKEY_free(pkey);
1663 tmp_buf[0]=s->client_version>>8;
1664 tmp_buf[1]=s->client_version&0xff;
1665 if (RAND_bytes(&(tmp_buf[2]),sizeof tmp_buf-2) <= 0)
1668 s->session->master_key_length=sizeof tmp_buf;
1671 /* Fix buf for TLS and beyond */
1672 if (s->version > SSL3_VERSION)
1674 n=RSA_public_encrypt(sizeof tmp_buf,
1675 tmp_buf,p,rsa,RSA_PKCS1_PADDING);
1677 if (s->options & SSL_OP_PKCS1_CHECK_1) p[1]++;
1678 if (s->options & SSL_OP_PKCS1_CHECK_2) tmp_buf[0]=0x70;
1682 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_BAD_RSA_ENCRYPT);
1686 /* Fix buf for TLS and beyond */
1687 if (s->version > SSL3_VERSION)
1693 s->session->master_key_length=
1694 s->method->ssl3_enc->generate_master_secret(s,
1695 s->session->master_key,
1696 tmp_buf,sizeof tmp_buf);
1697 OPENSSL_cleanse(tmp_buf,sizeof tmp_buf);
1700 #ifndef OPENSSL_NO_KRB5
1701 else if (l & SSL_kKRB5)
1703 krb5_error_code krb5rc;
1704 KSSL_CTX *kssl_ctx = s->kssl_ctx;
1705 /* krb5_data krb5_ap_req; */
1706 krb5_data *enc_ticket;
1707 krb5_data authenticator, *authp = NULL;
1708 EVP_CIPHER_CTX ciph_ctx;
1709 EVP_CIPHER *enc = NULL;
1710 unsigned char iv[EVP_MAX_IV_LENGTH];
1711 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
1712 unsigned char epms[SSL_MAX_MASTER_KEY_LENGTH
1713 + EVP_MAX_IV_LENGTH];
1714 int padl, outl = sizeof(epms);
1716 EVP_CIPHER_CTX_init(&ciph_ctx);
1719 printf("ssl3_send_client_key_exchange(%lx & %lx)\n",
1721 #endif /* KSSL_DEBUG */
1725 if (KRB5SENDAUTH) authp = &authenticator;
1726 #endif /* KRB5SENDAUTH */
1728 krb5rc = kssl_cget_tkt(kssl_ctx, &enc_ticket, authp,
1730 enc = kssl_map_enc(kssl_ctx->enctype);
1735 printf("kssl_cget_tkt rtn %d\n", krb5rc);
1736 if (krb5rc && kssl_err.text)
1737 printf("kssl_cget_tkt kssl_err=%s\n", kssl_err.text);
1739 #endif /* KSSL_DEBUG */
1743 ssl3_send_alert(s,SSL3_AL_FATAL,
1744 SSL_AD_HANDSHAKE_FAILURE);
1745 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1750 /* 20010406 VRS - Earlier versions used KRB5 AP_REQ
1751 ** in place of RFC 2712 KerberosWrapper, as in:
1753 ** Send ticket (copy to *p, set n = length)
1754 ** n = krb5_ap_req.length;
1755 ** memcpy(p, krb5_ap_req.data, krb5_ap_req.length);
1756 ** if (krb5_ap_req.data)
1757 ** kssl_krb5_free_data_contents(NULL,&krb5_ap_req);
1759 ** Now using real RFC 2712 KerberosWrapper
1760 ** (Thanks to Simon Wilkinson <sxw@sxw.org.uk>)
1761 ** Note: 2712 "opaque" types are here replaced
1762 ** with a 2-byte length followed by the value.
1764 ** KerberosWrapper= xx xx asn1ticket 0 0 xx xx encpms
1765 ** Where "xx xx" = length bytes. Shown here with
1766 ** optional authenticator omitted.
1769 /* KerberosWrapper.Ticket */
1770 s2n(enc_ticket->length,p);
1771 memcpy(p, enc_ticket->data, enc_ticket->length);
1772 p+= enc_ticket->length;
1773 n = enc_ticket->length + 2;
1775 /* KerberosWrapper.Authenticator */
1776 if (authp && authp->length)
1778 s2n(authp->length,p);
1779 memcpy(p, authp->data, authp->length);
1781 n+= authp->length + 2;
1789 s2n(0,p);/* null authenticator length */
1793 if (RAND_bytes(tmp_buf,sizeof tmp_buf) <= 0)
1796 /* 20010420 VRS. Tried it this way; failed.
1797 ** EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,NULL);
1798 ** EVP_CIPHER_CTX_set_key_length(&ciph_ctx,
1799 ** kssl_ctx->length);
1800 ** EVP_EncryptInit_ex(&ciph_ctx,NULL, key,iv);
1803 memset(iv, 0, sizeof iv); /* per RFC 1510 */
1804 EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,
1806 EVP_EncryptUpdate(&ciph_ctx,epms,&outl,tmp_buf,
1808 EVP_EncryptFinal_ex(&ciph_ctx,&(epms[outl]),&padl);
1810 if (outl > sizeof epms)
1812 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
1815 EVP_CIPHER_CTX_cleanup(&ciph_ctx);
1817 /* KerberosWrapper.EncryptedPreMasterSecret */
1819 memcpy(p, epms, outl);
1823 s->session->master_key_length=
1824 s->method->ssl3_enc->generate_master_secret(s,
1825 s->session->master_key,
1826 tmp_buf, sizeof tmp_buf);
1828 OPENSSL_cleanse(tmp_buf, sizeof tmp_buf);
1829 OPENSSL_cleanse(epms, outl);
1832 #ifndef OPENSSL_NO_DH
1833 else if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
1835 DH *dh_srvr,*dh_clnt;
1837 if (s->session->sess_cert->peer_dh_tmp != NULL)
1838 dh_srvr=s->session->sess_cert->peer_dh_tmp;
1841 /* we get them from the cert */
1842 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1843 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_DH_PARAMETERS);
1847 /* generate a new random key */
1848 if ((dh_clnt=DHparams_dup(dh_srvr)) == NULL)
1850 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1853 if (!DH_generate_key(dh_clnt))
1855 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1859 /* use the 'p' output buffer for the DH key, but
1860 * make sure to clear it out afterwards */
1862 n=DH_compute_key(p,dh_srvr->pub_key,dh_clnt);
1866 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1870 /* generate master key from the result */
1871 s->session->master_key_length=
1872 s->method->ssl3_enc->generate_master_secret(s,
1873 s->session->master_key,p,n);
1877 /* send off the data */
1878 n=BN_num_bytes(dh_clnt->pub_key);
1880 BN_bn2bin(dh_clnt->pub_key,p);
1885 /* perhaps clean things up a bit EAY EAY EAY EAY*/
1889 #ifndef OPENSSL_NO_ECDH
1890 else if ((l & SSL_kECDH) || (l & SSL_kECDHE))
1892 const EC_GROUP *srvr_group = NULL;
1894 int ecdh_clnt_cert = 0;
1897 /* Did we send out the client's
1898 * ECDH share for use in premaster
1899 * computation as part of client certificate?
1900 * If so, set ecdh_clnt_cert to 1.
1902 if ((l & SSL_kECDH) && (s->cert != NULL))
1904 /* XXX: For now, we do not support client
1905 * authentication using ECDH certificates.
1906 * To add such support, one needs to add
1907 * code that checks for appropriate
1908 * conditions and sets ecdh_clnt_cert to 1.
1909 * For example, the cert have an ECC
1910 * key on the same curve as the server's
1911 * and the key should be authorized for
1914 * One also needs to add code in ssl3_connect
1915 * to skip sending the certificate verify
1918 * if ((s->cert->key->privatekey != NULL) &&
1919 * (s->cert->key->privatekey->type ==
1920 * EVP_PKEY_EC) && ...)
1921 * ecdh_clnt_cert = 1;
1925 if (s->session->sess_cert->peer_ecdh_tmp != NULL)
1927 tkey = s->session->sess_cert->peer_ecdh_tmp;
1931 /* Get the Server Public Key from Cert */
1932 srvr_pub_pkey = X509_get_pubkey(s->session-> \
1933 sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
1934 if ((srvr_pub_pkey == NULL) ||
1935 (srvr_pub_pkey->type != EVP_PKEY_EC) ||
1936 (srvr_pub_pkey->pkey.ec == NULL))
1938 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1939 ERR_R_INTERNAL_ERROR);
1943 tkey = srvr_pub_pkey->pkey.ec;
1946 srvr_group = EC_KEY_get0_group(tkey);
1947 srvr_ecpoint = EC_KEY_get0_public_key(tkey);
1949 if ((srvr_group == NULL) || (srvr_ecpoint == NULL))
1951 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1952 ERR_R_INTERNAL_ERROR);
1956 if ((clnt_ecdh=EC_KEY_new()) == NULL)
1958 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1962 if (!EC_KEY_set_group(clnt_ecdh, srvr_group))
1964 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_EC_LIB);
1969 /* Reuse key info from our certificate
1970 * We only need our private key to perform
1971 * the ECDH computation.
1973 const BIGNUM *priv_key;
1974 tkey = s->cert->key->privatekey->pkey.ec;
1975 priv_key = EC_KEY_get0_private_key(tkey);
1976 if (priv_key == NULL)
1978 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1981 if (!EC_KEY_set_private_key(clnt_ecdh, priv_key))
1983 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_EC_LIB);
1989 /* Generate a new ECDH key pair */
1990 if (!(EC_KEY_generate_key(clnt_ecdh)))
1992 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_ECDH_LIB);
1997 /* use the 'p' output buffer for the ECDH key, but
1998 * make sure to clear it out afterwards
2001 field_size = EC_GROUP_get_degree(srvr_group);
2002 if (field_size <= 0)
2004 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2008 /* If field size is not more than 24 octets, then use SHA-1 hash of result;
2009 * otherwise, use result (see section 4.8 of draft-ietf-tls-ecc-03.txt;
2010 * this is new with this version of the Internet Draft).
2012 if (field_size <= 24 * 8)
2013 n=ECDH_compute_key(p, KDF1_SHA1_len, srvr_ecpoint, clnt_ecdh, KDF1_SHA1);
2015 n=ECDH_compute_key(p, (field_size+7)/8, srvr_ecpoint, clnt_ecdh, NULL);
2018 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2023 /* generate master key from the result */
2024 s->session->master_key_length = s->method->ssl3_enc \
2025 -> generate_master_secret(s,
2026 s->session->master_key,
2029 memset(p, 0, n); /* clean up */
2033 /* Send empty client key exch message */
2038 /* First check the size of encoding and
2039 * allocate memory accordingly.
2042 EC_POINT_point2oct(srvr_group,
2043 EC_KEY_get0_public_key(clnt_ecdh),
2044 POINT_CONVERSION_UNCOMPRESSED,
2047 encodedPoint = (unsigned char *)
2048 OPENSSL_malloc(encoded_pt_len *
2049 sizeof(unsigned char));
2050 bn_ctx = BN_CTX_new();
2051 if ((encodedPoint == NULL) ||
2054 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
2058 /* Encode the public key */
2059 n = EC_POINT_point2oct(srvr_group,
2060 EC_KEY_get0_public_key(clnt_ecdh),
2061 POINT_CONVERSION_UNCOMPRESSED,
2062 encodedPoint, encoded_pt_len, bn_ctx);
2064 *p = n; /* length of encoded point */
2065 /* Encoded point will be copied here */
2067 /* copy the point */
2068 memcpy((unsigned char *)p, encodedPoint, n);
2069 /* increment n to account for length field */
2073 /* Free allocated memory */
2074 BN_CTX_free(bn_ctx);
2075 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2076 if (clnt_ecdh != NULL)
2077 EC_KEY_free(clnt_ecdh);
2078 EVP_PKEY_free(srvr_pub_pkey);
2080 #endif /* !OPENSSL_NO_ECDH */
2083 ssl3_send_alert(s, SSL3_AL_FATAL,
2084 SSL_AD_HANDSHAKE_FAILURE);
2085 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2086 ERR_R_INTERNAL_ERROR);
2090 *(d++)=SSL3_MT_CLIENT_KEY_EXCHANGE;
2093 s->state=SSL3_ST_CW_KEY_EXCH_B;
2094 /* number of bytes to write */
2099 /* SSL3_ST_CW_KEY_EXCH_B */
2100 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2102 #ifndef OPENSSL_NO_ECDH
2103 BN_CTX_free(bn_ctx);
2104 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2105 if (clnt_ecdh != NULL)
2106 EC_KEY_free(clnt_ecdh);
2107 EVP_PKEY_free(srvr_pub_pkey);
2112 int ssl3_send_client_verify(SSL *s)
2114 unsigned char *p,*d;
2115 unsigned char data[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];
2117 #ifndef OPENSSL_NO_RSA
2121 #if !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
2125 if (s->state == SSL3_ST_CW_CERT_VRFY_A)
2127 d=(unsigned char *)s->init_buf->data;
2129 pkey=s->cert->key->privatekey;
2131 s->method->ssl3_enc->cert_verify_mac(s,&(s->s3->finish_dgst2),
2132 &(data[MD5_DIGEST_LENGTH]));
2134 #ifndef OPENSSL_NO_RSA
2135 if (pkey->type == EVP_PKEY_RSA)
2137 s->method->ssl3_enc->cert_verify_mac(s,
2138 &(s->s3->finish_dgst1),&(data[0]));
2139 if (RSA_sign(NID_md5_sha1, data,
2140 MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH,
2141 &(p[2]), &u, pkey->pkey.rsa) <= 0 )
2143 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_RSA_LIB);
2151 #ifndef OPENSSL_NO_DSA
2152 if (pkey->type == EVP_PKEY_DSA)
2154 if (!DSA_sign(pkey->save_type,
2155 &(data[MD5_DIGEST_LENGTH]),
2156 SHA_DIGEST_LENGTH,&(p[2]),
2157 (unsigned int *)&j,pkey->pkey.dsa))
2159 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_DSA_LIB);
2167 #ifndef OPENSSL_NO_ECDSA
2168 if (pkey->type == EVP_PKEY_EC)
2170 if (!ECDSA_sign(pkey->save_type,
2171 &(data[MD5_DIGEST_LENGTH]),
2172 SHA_DIGEST_LENGTH,&(p[2]),
2173 (unsigned int *)&j,pkey->pkey.ec))
2175 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,
2185 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_INTERNAL_ERROR);
2188 *(d++)=SSL3_MT_CERTIFICATE_VERIFY;
2191 s->state=SSL3_ST_CW_CERT_VRFY_B;
2192 s->init_num=(int)n+4;
2195 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2200 int ssl3_send_client_certificate(SSL *s)
2203 EVP_PKEY *pkey=NULL;
2207 if (s->state == SSL3_ST_CW_CERT_A)
2209 if ((s->cert == NULL) ||
2210 (s->cert->key->x509 == NULL) ||
2211 (s->cert->key->privatekey == NULL))
2212 s->state=SSL3_ST_CW_CERT_B;
2214 s->state=SSL3_ST_CW_CERT_C;
2217 /* We need to get a client cert */
2218 if (s->state == SSL3_ST_CW_CERT_B)
2220 /* If we get an error, we need to
2221 * ssl->rwstate=SSL_X509_LOOKUP; return(-1);
2222 * We then get retied later */
2224 if (s->ctx->client_cert_cb != NULL)
2225 i=s->ctx->client_cert_cb(s,&(x509),&(pkey));
2228 s->rwstate=SSL_X509_LOOKUP;
2231 s->rwstate=SSL_NOTHING;
2232 if ((i == 1) && (pkey != NULL) && (x509 != NULL))
2234 s->state=SSL3_ST_CW_CERT_B;
2235 if ( !SSL_use_certificate(s,x509) ||
2236 !SSL_use_PrivateKey(s,pkey))
2242 SSLerr(SSL_F_SSL3_SEND_CLIENT_CERTIFICATE,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK);
2245 if (x509 != NULL) X509_free(x509);
2246 if (pkey != NULL) EVP_PKEY_free(pkey);
2249 if (s->version == SSL3_VERSION)
2251 s->s3->tmp.cert_req=0;
2252 ssl3_send_alert(s,SSL3_AL_WARNING,SSL_AD_NO_CERTIFICATE);
2257 s->s3->tmp.cert_req=2;
2261 /* Ok, we have a cert */
2262 s->state=SSL3_ST_CW_CERT_C;
2265 if (s->state == SSL3_ST_CW_CERT_C)
2267 s->state=SSL3_ST_CW_CERT_D;
2268 l=ssl3_output_cert_chain(s,
2269 (s->s3->tmp.cert_req == 2)?NULL:s->cert->key->x509);
2273 /* SSL3_ST_CW_CERT_D */
2274 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2277 #define has_bits(i,m) (((i)&(m)) == (m))
2279 int ssl3_check_cert_and_algorithm(SSL *s)
2283 EVP_PKEY *pkey=NULL;
2285 #ifndef OPENSSL_NO_RSA
2288 #ifndef OPENSSL_NO_DH
2292 sc=s->session->sess_cert;
2296 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,ERR_R_INTERNAL_ERROR);
2300 algs=s->s3->tmp.new_cipher->algorithms;
2302 /* we don't have a certificate */
2303 if (algs & (SSL_aDH|SSL_aNULL|SSL_aKRB5))
2306 #ifndef OPENSSL_NO_RSA
2307 rsa=s->session->sess_cert->peer_rsa_tmp;
2309 #ifndef OPENSSL_NO_DH
2310 dh=s->session->sess_cert->peer_dh_tmp;
2313 /* This is the passed certificate */
2315 idx=sc->peer_cert_type;
2316 #ifndef OPENSSL_NO_ECDH
2317 if (idx == SSL_PKEY_ECC)
2319 if (check_srvr_ecc_cert_and_alg(sc->peer_pkeys[idx].x509,
2320 s->s3->tmp.new_cipher) == 0)
2321 { /* check failed */
2322 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_BAD_ECC_CERT);
2331 pkey=X509_get_pubkey(sc->peer_pkeys[idx].x509);
2332 i=X509_certificate_type(sc->peer_pkeys[idx].x509,pkey);
2333 EVP_PKEY_free(pkey);
2336 /* Check that we have a certificate if we require one */
2337 if ((algs & SSL_aRSA) && !has_bits(i,EVP_PK_RSA|EVP_PKT_SIGN))
2339 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_SIGNING_CERT);
2342 #ifndef OPENSSL_NO_DSA
2343 else if ((algs & SSL_aDSS) && !has_bits(i,EVP_PK_DSA|EVP_PKT_SIGN))
2345 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DSA_SIGNING_CERT);
2349 #ifndef OPENSSL_NO_RSA
2350 if ((algs & SSL_kRSA) &&
2351 !(has_bits(i,EVP_PK_RSA|EVP_PKT_ENC) || (rsa != NULL)))
2353 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_ENCRYPTING_CERT);
2357 #ifndef OPENSSL_NO_DH
2358 if ((algs & SSL_kEDH) &&
2359 !(has_bits(i,EVP_PK_DH|EVP_PKT_EXCH) || (dh != NULL)))
2361 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_KEY);
2364 else if ((algs & SSL_kDHr) && !has_bits(i,EVP_PK_DH|EVP_PKS_RSA))
2366 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_RSA_CERT);
2369 #ifndef OPENSSL_NO_DSA
2370 else if ((algs & SSL_kDHd) && !has_bits(i,EVP_PK_DH|EVP_PKS_DSA))
2372 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_DSA_CERT);
2378 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) && !has_bits(i,EVP_PKT_EXP))
2380 #ifndef OPENSSL_NO_RSA
2381 if (algs & SSL_kRSA)
2384 || RSA_size(rsa)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2386 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_RSA_KEY);
2392 #ifndef OPENSSL_NO_DH
2393 if (algs & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
2396 || DH_size(dh)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2398 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_DH_KEY);
2405 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);
2411 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
2417 #ifndef OPENSSL_NO_ECDH
2418 /* This is the complement of nid2curve_id in s3_srvr.c. */
2419 static int curve_id2nid(int curve_id)
2421 /* ECC curves from draft-ietf-tls-ecc-01.txt (Mar 15, 2001)
2422 * (no changes in draft-ietf-tls-ecc-03.txt [June 2003]) */
2423 static int nid_list[26] =
2426 NID_sect163k1, /* sect163k1 (1) */
2427 NID_sect163r1, /* sect163r1 (2) */
2428 NID_sect163r2, /* sect163r2 (3) */
2429 NID_sect193r1, /* sect193r1 (4) */
2430 NID_sect193r2, /* sect193r2 (5) */
2431 NID_sect233k1, /* sect233k1 (6) */
2432 NID_sect233r1, /* sect233r1 (7) */
2433 NID_sect239k1, /* sect239k1 (8) */
2434 NID_sect283k1, /* sect283k1 (9) */
2435 NID_sect283r1, /* sect283r1 (10) */
2436 NID_sect409k1, /* sect409k1 (11) */
2437 NID_sect409r1, /* sect409r1 (12) */
2438 NID_sect571k1, /* sect571k1 (13) */
2439 NID_sect571r1, /* sect571r1 (14) */
2440 NID_secp160k1, /* secp160k1 (15) */
2441 NID_secp160r1, /* secp160r1 (16) */
2442 NID_secp160r2, /* secp160r2 (17) */
2443 NID_secp192k1, /* secp192k1 (18) */
2444 NID_X9_62_prime192v1, /* secp192r1 (19) */
2445 NID_secp224k1, /* secp224k1 (20) */
2446 NID_secp224r1, /* secp224r1 (21) */
2447 NID_secp256k1, /* secp256k1 (22) */
2448 NID_X9_62_prime256v1, /* secp256r1 (23) */
2449 NID_secp384r1, /* secp384r1 (24) */
2450 NID_secp521r1 /* secp521r1 (25) */
2453 if ((curve_id < 1) || (curve_id > 25)) return 0;
2455 return nid_list[curve_id];