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 SSL_METHOD *SSLv3_client_method(void)
157 static SSL_METHOD SSLv3_client_data;
161 CRYPTO_w_lock(CRYPTO_LOCK_SSL_METHOD);
165 memcpy((char *)&SSLv3_client_data,(char *)sslv3_base_method(),
167 SSLv3_client_data.ssl_connect=ssl3_connect;
168 SSLv3_client_data.get_ssl_method=ssl3_get_client_method;
172 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_METHOD);
174 return(&SSLv3_client_data);
177 int ssl3_connect(SSL *s)
180 unsigned long Time=time(NULL),l;
182 void (*cb)(const SSL *ssl,int type,int val)=NULL;
184 int new_state,state,skip=0;;
186 RAND_add(&Time,sizeof(Time),0);
190 if (s->info_callback != NULL)
192 else if (s->ctx->info_callback != NULL)
193 cb=s->ctx->info_callback;
196 if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
204 case SSL_ST_RENEGOTIATE:
206 s->state=SSL_ST_CONNECT;
207 s->ctx->stats.sess_connect_renegotiate++;
211 case SSL_ST_BEFORE|SSL_ST_CONNECT:
212 case SSL_ST_OK|SSL_ST_CONNECT:
215 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
217 if ((s->version & 0xff00 ) != 0x0300)
219 SSLerr(SSL_F_SSL3_CONNECT, ERR_R_INTERNAL_ERROR);
224 /* s->version=SSL3_VERSION; */
225 s->type=SSL_ST_CONNECT;
227 if (s->init_buf == NULL)
229 if ((buf=BUF_MEM_new()) == NULL)
234 if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))
243 if (!ssl3_setup_buffers(s)) { ret= -1; goto end; }
245 /* setup buffing BIO */
246 if (!ssl_init_wbio_buffer(s,0)) { ret= -1; goto end; }
248 /* don't push the buffering BIO quite yet */
250 ssl3_init_finished_mac(s);
252 s->state=SSL3_ST_CW_CLNT_HELLO_A;
253 s->ctx->stats.sess_connect++;
257 case SSL3_ST_CW_CLNT_HELLO_A:
258 case SSL3_ST_CW_CLNT_HELLO_B:
261 ret=ssl3_client_hello(s);
262 if (ret <= 0) goto end;
263 s->state=SSL3_ST_CR_SRVR_HELLO_A;
266 /* turn on buffering for the next lot of output */
267 if (s->bbio != s->wbio)
268 s->wbio=BIO_push(s->bbio,s->wbio);
272 case SSL3_ST_CR_SRVR_HELLO_A:
273 case SSL3_ST_CR_SRVR_HELLO_B:
274 ret=ssl3_get_server_hello(s);
275 if (ret <= 0) goto end;
277 s->state=SSL3_ST_CR_FINISHED_A;
279 s->state=SSL3_ST_CR_CERT_A;
283 case SSL3_ST_CR_CERT_A:
284 case SSL3_ST_CR_CERT_B:
285 /* Check if it is anon DH/ECDH */
286 if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
288 ret=ssl3_get_server_certificate(s);
289 if (ret <= 0) goto end;
293 s->state=SSL3_ST_CR_KEY_EXCH_A;
297 case SSL3_ST_CR_KEY_EXCH_A:
298 case SSL3_ST_CR_KEY_EXCH_B:
299 ret=ssl3_get_key_exchange(s);
300 if (ret <= 0) goto end;
301 s->state=SSL3_ST_CR_CERT_REQ_A;
304 /* at this point we check that we have the
305 * required stuff from the server */
306 if (!ssl3_check_cert_and_algorithm(s))
313 case SSL3_ST_CR_CERT_REQ_A:
314 case SSL3_ST_CR_CERT_REQ_B:
315 ret=ssl3_get_certificate_request(s);
316 if (ret <= 0) goto end;
317 s->state=SSL3_ST_CR_SRVR_DONE_A;
321 case SSL3_ST_CR_SRVR_DONE_A:
322 case SSL3_ST_CR_SRVR_DONE_B:
323 ret=ssl3_get_server_done(s);
324 if (ret <= 0) goto end;
325 if (s->s3->tmp.cert_req)
326 s->state=SSL3_ST_CW_CERT_A;
328 s->state=SSL3_ST_CW_KEY_EXCH_A;
333 case SSL3_ST_CW_CERT_A:
334 case SSL3_ST_CW_CERT_B:
335 case SSL3_ST_CW_CERT_C:
336 case SSL3_ST_CW_CERT_D:
337 ret=ssl3_send_client_certificate(s);
338 if (ret <= 0) goto end;
339 s->state=SSL3_ST_CW_KEY_EXCH_A;
343 case SSL3_ST_CW_KEY_EXCH_A:
344 case SSL3_ST_CW_KEY_EXCH_B:
345 ret=ssl3_send_client_key_exchange(s);
346 if (ret <= 0) goto end;
347 l=s->s3->tmp.new_cipher->algorithms;
348 /* EAY EAY EAY need to check for DH fix cert
350 /* For TLS, cert_req is set to 2, so a cert chain
351 * of nothing is sent, but no verify packet is sent */
352 /* XXX: For now, we do not support client
353 * authentication in ECDH cipher suites with
354 * ECDH (rather than ECDSA) certificates.
355 * We need to skip the certificate verify
356 * message when client's ECDH public key is sent
357 * inside the client certificate.
359 if (s->s3->tmp.cert_req == 1)
361 s->state=SSL3_ST_CW_CERT_VRFY_A;
365 s->state=SSL3_ST_CW_CHANGE_A;
366 s->s3->change_cipher_spec=0;
372 case SSL3_ST_CW_CERT_VRFY_A:
373 case SSL3_ST_CW_CERT_VRFY_B:
374 ret=ssl3_send_client_verify(s);
375 if (ret <= 0) goto end;
376 s->state=SSL3_ST_CW_CHANGE_A;
378 s->s3->change_cipher_spec=0;
381 case SSL3_ST_CW_CHANGE_A:
382 case SSL3_ST_CW_CHANGE_B:
383 ret=ssl3_send_change_cipher_spec(s,
384 SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B);
385 if (ret <= 0) goto end;
386 s->state=SSL3_ST_CW_FINISHED_A;
389 s->session->cipher=s->s3->tmp.new_cipher;
390 if (s->s3->tmp.new_compression == NULL)
391 s->session->compress_meth=0;
393 s->session->compress_meth=
394 s->s3->tmp.new_compression->id;
395 if (!s->method->ssl3_enc->setup_key_block(s))
401 if (!s->method->ssl3_enc->change_cipher_state(s,
402 SSL3_CHANGE_CIPHER_CLIENT_WRITE))
410 case SSL3_ST_CW_FINISHED_A:
411 case SSL3_ST_CW_FINISHED_B:
412 ret=ssl3_send_finished(s,
413 SSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B,
414 s->method->ssl3_enc->client_finished_label,
415 s->method->ssl3_enc->client_finished_label_len);
416 if (ret <= 0) goto end;
417 s->state=SSL3_ST_CW_FLUSH;
420 s->s3->flags&= ~SSL3_FLAGS_POP_BUFFER;
423 s->s3->tmp.next_state=SSL_ST_OK;
424 if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED)
427 s->s3->flags|=SSL3_FLAGS_POP_BUFFER;
428 s->s3->delay_buf_pop_ret=0;
433 s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A;
438 case SSL3_ST_CR_FINISHED_A:
439 case SSL3_ST_CR_FINISHED_B:
441 ret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A,
442 SSL3_ST_CR_FINISHED_B);
443 if (ret <= 0) goto end;
446 s->state=SSL3_ST_CW_CHANGE_A;
452 case SSL3_ST_CW_FLUSH:
453 /* number of bytes to be flushed */
454 num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);
457 s->rwstate=SSL_WRITING;
458 num1=BIO_flush(s->wbio);
459 if (num1 <= 0) { ret= -1; goto end; }
460 s->rwstate=SSL_NOTHING;
463 s->state=s->s3->tmp.next_state;
467 /* clean a few things up */
468 ssl3_cleanup_key_block(s);
470 if (s->init_buf != NULL)
472 BUF_MEM_free(s->init_buf);
476 /* If we are not 'joining' the last two packets,
477 * remove the buffering now */
478 if (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER))
479 ssl_free_wbio_buffer(s);
480 /* else do it later in ssl3_write */
485 ssl_update_cache(s,SSL_SESS_CACHE_CLIENT);
486 if (s->hit) s->ctx->stats.sess_hit++;
490 s->handshake_func=ssl3_connect;
491 s->ctx->stats.sess_connect_good++;
493 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);
499 SSLerr(SSL_F_SSL3_CONNECT,SSL_R_UNKNOWN_STATE);
505 /* did we do anything */
506 if (!s->s3->tmp.reuse_message && !skip)
510 if ((ret=BIO_flush(s->wbio)) <= 0)
514 if ((cb != NULL) && (s->state != state))
518 cb(s,SSL_CB_CONNECT_LOOP,1);
529 cb(s,SSL_CB_CONNECT_EXIT,ret);
534 int ssl3_client_hello(SSL *s)
539 unsigned long Time,l;
542 buf=(unsigned char *)s->init_buf->data;
543 if (s->state == SSL3_ST_CW_CLNT_HELLO_A)
545 if ((s->session == NULL) ||
546 (s->session->ssl_version != s->version) ||
547 (s->session->not_resumable))
549 if (!ssl_get_new_session(s,0))
552 /* else use the pre-loaded session */
554 p=s->s3->client_random;
555 Time=time(NULL); /* Time */
557 if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0)
560 /* Do the message type and length last */
563 *(p++)=s->version>>8;
564 *(p++)=s->version&0xff;
565 s->client_version=s->version;
568 memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
575 i=s->session->session_id_length;
579 if (i > (int)sizeof(s->session->session_id))
581 SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
584 memcpy(p,s->session->session_id,i);
588 /* Ciphers supported */
589 i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]),0);
592 SSLerr(SSL_F_SSL3_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
599 if (s->ctx->comp_methods == NULL)
602 j=sk_SSL_COMP_num(s->ctx->comp_methods);
606 comp=sk_SSL_COMP_value(s->ctx->comp_methods,i);
609 *(p++)=0; /* Add the NULL method */
613 *(d++)=SSL3_MT_CLIENT_HELLO;
616 s->state=SSL3_ST_CW_CLNT_HELLO_B;
617 /* number of bytes to write */
622 /* SSL3_ST_CW_CLNT_HELLO_B */
623 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
628 int ssl3_get_server_hello(SSL *s)
630 STACK_OF(SSL_CIPHER) *sk;
638 n=s->method->ssl_get_message(s,
639 SSL3_ST_CR_SRVR_HELLO_A,
640 SSL3_ST_CR_SRVR_HELLO_B,
645 if (!ok) return((int)n);
647 if ( SSL_version(s) == DTLS1_VERSION)
649 if ( s->s3->tmp.message_type == DTLS1_MT_HELLO_VERIFY_REQUEST)
651 if ( s->d1->send_cookie == 0)
653 s->s3->tmp.reuse_message = 1;
656 else /* already sent a cookie */
658 al=SSL_AD_UNEXPECTED_MESSAGE;
659 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);
665 if ( s->s3->tmp.message_type != SSL3_MT_SERVER_HELLO)
667 al=SSL_AD_UNEXPECTED_MESSAGE;
668 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);
672 d=p=(unsigned char *)s->init_msg;
674 if ((p[0] != (s->version>>8)) || (p[1] != (s->version&0xff)))
676 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_SSL_VERSION);
677 s->version=(s->version&0xff00)|p[1];
678 al=SSL_AD_PROTOCOL_VERSION;
683 /* load the server hello data */
684 /* load the server random */
685 memcpy(s->s3->server_random,p,SSL3_RANDOM_SIZE);
688 /* get the session-id */
691 if ((j > sizeof s->session->session_id) || (j > SSL3_SESSION_ID_SIZE))
693 al=SSL_AD_ILLEGAL_PARAMETER;
694 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SSL3_SESSION_ID_TOO_LONG);
698 if (j != 0 && j == s->session->session_id_length
699 && memcmp(p,s->session->session_id,j) == 0)
701 if(s->sid_ctx_length != s->session->sid_ctx_length
702 || memcmp(s->session->sid_ctx,s->sid_ctx,s->sid_ctx_length))
704 /* actually a client application bug */
705 al=SSL_AD_ILLEGAL_PARAMETER;
706 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);
711 else /* a miss or crap from the other end */
713 /* If we were trying for session-id reuse, make a new
714 * SSL_SESSION so we don't stuff up other people */
716 if (s->session->session_id_length > 0)
718 if (!ssl_get_new_session(s,0))
720 al=SSL_AD_INTERNAL_ERROR;
724 s->session->session_id_length=j;
725 memcpy(s->session->session_id,p,j); /* j could be 0 */
728 c=ssl_get_cipher_by_char(s,p);
732 al=SSL_AD_ILLEGAL_PARAMETER;
733 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNKNOWN_CIPHER_RETURNED);
736 p+=ssl_put_cipher_by_char(s,NULL,NULL);
738 sk=ssl_get_ciphers_by_id(s);
739 i=sk_SSL_CIPHER_find(sk,c);
742 /* we did not say we would use this cipher */
743 al=SSL_AD_ILLEGAL_PARAMETER;
744 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_CIPHER_RETURNED);
748 /* Depending on the session caching (internal/external), the cipher
749 and/or cipher_id values may not be set. Make sure that
750 cipher_id is set and use it for comparison. */
751 if (s->session->cipher)
752 s->session->cipher_id = s->session->cipher->id;
753 if (s->hit && (s->session->cipher_id != c->id))
756 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG))
758 al=SSL_AD_ILLEGAL_PARAMETER;
759 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED);
763 s->s3->tmp.new_cipher=c;
765 /* lets get the compression algorithm */
771 comp=ssl3_comp_find(s->ctx->comp_methods,j);
773 if ((j != 0) && (comp == NULL))
775 al=SSL_AD_ILLEGAL_PARAMETER;
776 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
781 s->s3->tmp.new_compression=comp;
786 /* wrong packet length */
787 al=SSL_AD_DECODE_ERROR;
788 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_PACKET_LENGTH);
794 ssl3_send_alert(s,SSL3_AL_FATAL,al);
799 int ssl3_get_server_certificate(SSL *s)
802 unsigned long n,nc,llen,l;
804 const unsigned char *q,*p;
806 STACK_OF(X509) *sk=NULL;
809 int need_cert = 1; /* VRS: 0=> will allow null cert if auth == KRB5 */
811 n=s->method->ssl_get_message(s,
818 if (!ok) return((int)n);
820 if (s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE)
822 s->s3->tmp.reuse_message=1;
826 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE)
828 al=SSL_AD_UNEXPECTED_MESSAGE;
829 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_BAD_MESSAGE_TYPE);
832 p=d=(unsigned char *)s->init_msg;
834 if ((sk=sk_X509_new_null()) == NULL)
836 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
843 al=SSL_AD_DECODE_ERROR;
844 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_LENGTH_MISMATCH);
847 for (nc=0; nc<llen; )
852 al=SSL_AD_DECODE_ERROR;
853 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
858 x=d2i_X509(NULL,&q,l);
861 al=SSL_AD_BAD_CERTIFICATE;
862 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_ASN1_LIB);
867 al=SSL_AD_DECODE_ERROR;
868 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
871 if (!sk_X509_push(sk,x))
873 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
881 i=ssl_verify_cert_chain(s,sk);
882 if ((s->verify_mode != SSL_VERIFY_NONE) && (!i)
883 #ifndef OPENSSL_NO_KRB5
884 && (s->s3->tmp.new_cipher->algorithms & (SSL_MKEY_MASK|SSL_AUTH_MASK))
885 != (SSL_aKRB5|SSL_kKRB5)
886 #endif /* OPENSSL_NO_KRB5 */
889 al=ssl_verify_alarm_type(s->verify_result);
890 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED);
893 ERR_clear_error(); /* but we keep s->verify_result */
895 sc=ssl_sess_cert_new();
896 if (sc == NULL) goto err;
898 if (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert);
899 s->session->sess_cert=sc;
902 /* Inconsistency alert: cert_chain does include the peer's
903 * certificate, which we don't include in s3_srvr.c */
904 x=sk_X509_value(sk,0);
906 /* VRS 19990621: possible memory leak; sk=null ==> !sk_pop_free() @end*/
908 pkey=X509_get_pubkey(x);
910 /* VRS: allow null cert if auth == KRB5 */
911 need_cert = ((s->s3->tmp.new_cipher->algorithms
912 & (SSL_MKEY_MASK|SSL_AUTH_MASK))
913 == (SSL_aKRB5|SSL_kKRB5))? 0: 1;
916 printf("pkey,x = %p, %p\n", pkey,x);
917 printf("ssl_cert_type(x,pkey) = %d\n", ssl_cert_type(x,pkey));
918 printf("cipher, alg, nc = %s, %lx, %d\n", s->s3->tmp.new_cipher->name,
919 s->s3->tmp.new_cipher->algorithms, need_cert);
920 #endif /* KSSL_DEBUG */
922 if (need_cert && ((pkey == NULL) || EVP_PKEY_missing_parameters(pkey)))
926 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
927 SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS);
931 i=ssl_cert_type(x,pkey);
932 if (need_cert && i < 0)
936 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
937 SSL_R_UNKNOWN_CERTIFICATE_TYPE);
943 sc->peer_cert_type=i;
944 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
945 /* Why would the following ever happen?
946 * We just created sc a couple of lines ago. */
947 if (sc->peer_pkeys[i].x509 != NULL)
948 X509_free(sc->peer_pkeys[i].x509);
949 sc->peer_pkeys[i].x509=x;
950 sc->peer_key= &(sc->peer_pkeys[i]);
952 if (s->session->peer != NULL)
953 X509_free(s->session->peer);
954 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
959 sc->peer_cert_type=i;
962 if (s->session->peer != NULL)
963 X509_free(s->session->peer);
964 s->session->peer=NULL;
966 s->session->verify_result = s->verify_result;
974 ssl3_send_alert(s,SSL3_AL_FATAL,al);
979 sk_X509_pop_free(sk,X509_free);
983 int ssl3_get_key_exchange(SSL *s)
985 #ifndef OPENSSL_NO_RSA
986 unsigned char *q,md_buf[EVP_MAX_MD_SIZE*2];
989 unsigned char *param,*p;
990 int al,i,j,param_len,ok;
993 #ifndef OPENSSL_NO_RSA
996 #ifndef OPENSSL_NO_DH
999 #ifndef OPENSSL_NO_ECDH
1000 EC_KEY *ecdh = NULL;
1001 BN_CTX *bn_ctx = NULL;
1002 EC_POINT *srvr_ecpoint = NULL;
1004 int encoded_pt_len = 0;
1007 /* use same message size as in ssl3_get_certificate_request()
1008 * as ServerKeyExchange message may be skipped */
1009 n=s->method->ssl_get_message(s,
1010 SSL3_ST_CR_KEY_EXCH_A,
1011 SSL3_ST_CR_KEY_EXCH_B,
1016 if (!ok) return((int)n);
1018 if (s->s3->tmp.message_type != SSL3_MT_SERVER_KEY_EXCHANGE)
1020 s->s3->tmp.reuse_message=1;
1024 param=p=(unsigned char *)s->init_msg;
1026 if (s->session->sess_cert != NULL)
1028 #ifndef OPENSSL_NO_RSA
1029 if (s->session->sess_cert->peer_rsa_tmp != NULL)
1031 RSA_free(s->session->sess_cert->peer_rsa_tmp);
1032 s->session->sess_cert->peer_rsa_tmp=NULL;
1035 #ifndef OPENSSL_NO_DH
1036 if (s->session->sess_cert->peer_dh_tmp)
1038 DH_free(s->session->sess_cert->peer_dh_tmp);
1039 s->session->sess_cert->peer_dh_tmp=NULL;
1042 #ifndef OPENSSL_NO_ECDH
1043 if (s->session->sess_cert->peer_ecdh_tmp)
1045 EC_KEY_free(s->session->sess_cert->peer_ecdh_tmp);
1046 s->session->sess_cert->peer_ecdh_tmp=NULL;
1052 s->session->sess_cert=ssl_sess_cert_new();
1056 alg=s->s3->tmp.new_cipher->algorithms;
1057 EVP_MD_CTX_init(&md_ctx);
1059 #ifndef OPENSSL_NO_RSA
1062 if ((rsa=RSA_new()) == NULL)
1064 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1071 al=SSL_AD_DECODE_ERROR;
1072 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_MODULUS_LENGTH);
1075 if (!(rsa->n=BN_bin2bn(p,i,rsa->n)))
1077 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1086 al=SSL_AD_DECODE_ERROR;
1087 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_E_LENGTH);
1090 if (!(rsa->e=BN_bin2bn(p,i,rsa->e)))
1092 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1098 /* this should be because we are using an export cipher */
1100 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1103 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1106 s->session->sess_cert->peer_rsa_tmp=rsa;
1109 #else /* OPENSSL_NO_RSA */
1113 #ifndef OPENSSL_NO_DH
1114 else if (alg & SSL_kEDH)
1116 if ((dh=DH_new()) == NULL)
1118 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_DH_LIB);
1125 al=SSL_AD_DECODE_ERROR;
1126 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_P_LENGTH);
1129 if (!(dh->p=BN_bin2bn(p,i,NULL)))
1131 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1140 al=SSL_AD_DECODE_ERROR;
1141 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_G_LENGTH);
1144 if (!(dh->g=BN_bin2bn(p,i,NULL)))
1146 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1155 al=SSL_AD_DECODE_ERROR;
1156 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_PUB_KEY_LENGTH);
1159 if (!(dh->pub_key=BN_bin2bn(p,i,NULL)))
1161 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
1167 #ifndef OPENSSL_NO_RSA
1169 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1174 #ifndef OPENSSL_NO_DSA
1175 else if (alg & SSL_aDSS)
1176 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].x509);
1178 /* else anonymous DH, so no certificate or pkey. */
1180 s->session->sess_cert->peer_dh_tmp=dh;
1183 else if ((alg & SSL_kDHr) || (alg & SSL_kDHd))
1185 al=SSL_AD_ILLEGAL_PARAMETER;
1186 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
1189 #endif /* !OPENSSL_NO_DH */
1191 #ifndef OPENSSL_NO_ECDH
1192 else if (alg & SSL_kECDHE)
1195 const EC_GROUP *group;
1197 if ((ecdh=EC_KEY_new()) == NULL)
1199 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1203 /* Extract elliptic curve parameters and the
1204 * server's ephemeral ECDH public key.
1205 * Keep accumulating lengths of various components in
1206 * param_len and make sure it never exceeds n.
1209 /* XXX: For now we only support named (not generic) curves
1210 * and the ECParameters in this case is just two bytes.
1213 if ((param_len > n) ||
1214 (*p != NAMED_CURVE_TYPE) ||
1215 ((curve_nid = curve_id2nid(*(p + 1))) == 0))
1217 al=SSL_AD_INTERNAL_ERROR;
1218 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS);
1222 ngroup = EC_GROUP_new_by_curve_name(curve_nid);
1225 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
1228 if (EC_KEY_set_group(ecdh, ngroup) == 0)
1230 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
1233 EC_GROUP_free(ngroup);
1235 group = EC_KEY_get0_group(ecdh);
1237 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
1238 (EC_GROUP_get_degree(group) > 163))
1240 al=SSL_AD_EXPORT_RESTRICTION;
1241 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
1247 /* Next, get the encoded ECPoint */
1248 if (((srvr_ecpoint = EC_POINT_new(group)) == NULL) ||
1249 ((bn_ctx = BN_CTX_new()) == NULL))
1251 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1255 encoded_pt_len = *p; /* length of encoded point */
1257 param_len += (1 + encoded_pt_len);
1258 if ((param_len > n) ||
1259 (EC_POINT_oct2point(group, srvr_ecpoint,
1260 p, encoded_pt_len, bn_ctx) == 0))
1262 al=SSL_AD_DECODE_ERROR;
1263 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_ECPOINT);
1270 /* The ECC/TLS specification does not mention
1271 * the use of DSA to sign ECParameters in the server
1272 * key exchange message. We do support RSA and ECDSA.
1275 #ifndef OPENSSL_NO_RSA
1276 else if (alg & SSL_aRSA)
1277 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1279 #ifndef OPENSSL_NO_ECDSA
1280 else if (alg & SSL_aECDSA)
1281 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
1283 /* else anonymous ECDH, so no certificate or pkey. */
1284 EC_KEY_set_public_key(ecdh, srvr_ecpoint);
1285 s->session->sess_cert->peer_ecdh_tmp=ecdh;
1287 BN_CTX_free(bn_ctx);
1288 EC_POINT_free(srvr_ecpoint);
1289 srvr_ecpoint = NULL;
1291 else if (alg & SSL_kECDH)
1293 al=SSL_AD_UNEXPECTED_MESSAGE;
1294 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNEXPECTED_MESSAGE);
1297 #endif /* !OPENSSL_NO_ECDH */
1300 al=SSL_AD_HANDSHAKE_FAILURE;
1301 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
1306 /* p points to the next byte, there are 'n' bytes left */
1308 /* if it was signed, check the signature */
1313 j=EVP_PKEY_size(pkey);
1315 if ((i != n) || (n > j) || (n <= 0))
1317 /* wrong packet length */
1318 al=SSL_AD_DECODE_ERROR;
1319 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_WRONG_SIGNATURE_LENGTH);
1323 #ifndef OPENSSL_NO_RSA
1324 if (pkey->type == EVP_PKEY_RSA)
1330 for (num=2; num > 0; num--)
1332 EVP_DigestInit_ex(&md_ctx,(num == 2)
1333 ?s->ctx->md5:s->ctx->sha1, NULL);
1334 EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1335 EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1336 EVP_DigestUpdate(&md_ctx,param,param_len);
1337 EVP_DigestFinal_ex(&md_ctx,q,(unsigned int *)&i);
1341 i=RSA_verify(NID_md5_sha1, md_buf, j, p, n,
1345 al=SSL_AD_DECRYPT_ERROR;
1346 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_DECRYPT);
1352 al=SSL_AD_DECRYPT_ERROR;
1353 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1359 #ifndef OPENSSL_NO_DSA
1360 if (pkey->type == EVP_PKEY_DSA)
1363 EVP_VerifyInit_ex(&md_ctx,EVP_dss1(), 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);
1377 #ifndef OPENSSL_NO_ECDSA
1378 if (pkey->type == EVP_PKEY_EC)
1380 /* let's do ECDSA */
1381 EVP_VerifyInit_ex(&md_ctx,EVP_ecdsa(), NULL);
1382 EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1383 EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1384 EVP_VerifyUpdate(&md_ctx,param,param_len);
1385 if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey))
1388 al=SSL_AD_DECRYPT_ERROR;
1389 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
1396 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1402 /* still data left over */
1403 if (!(alg & SSL_aNULL))
1405 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1410 al=SSL_AD_DECODE_ERROR;
1411 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_EXTRA_DATA_IN_MESSAGE);
1415 EVP_PKEY_free(pkey);
1416 EVP_MD_CTX_cleanup(&md_ctx);
1419 ssl3_send_alert(s,SSL3_AL_FATAL,al);
1421 EVP_PKEY_free(pkey);
1422 #ifndef OPENSSL_NO_RSA
1426 #ifndef OPENSSL_NO_DH
1430 #ifndef OPENSSL_NO_ECDH
1431 BN_CTX_free(bn_ctx);
1432 EC_POINT_free(srvr_ecpoint);
1436 EVP_MD_CTX_cleanup(&md_ctx);
1440 int ssl3_get_certificate_request(SSL *s)
1443 unsigned long n,nc,l;
1444 unsigned int llen,ctype_num,i;
1446 const unsigned char *p,*q;
1448 STACK_OF(X509_NAME) *ca_sk=NULL;
1450 n=s->method->ssl_get_message(s,
1451 SSL3_ST_CR_CERT_REQ_A,
1452 SSL3_ST_CR_CERT_REQ_B,
1457 if (!ok) return((int)n);
1459 s->s3->tmp.cert_req=0;
1461 if (s->s3->tmp.message_type == SSL3_MT_SERVER_DONE)
1463 s->s3->tmp.reuse_message=1;
1467 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE_REQUEST)
1469 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
1470 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_WRONG_MESSAGE_TYPE);
1474 /* TLS does not like anon-DH with client cert */
1475 if (s->version > SSL3_VERSION)
1477 l=s->s3->tmp.new_cipher->algorithms;
1480 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
1481 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER);
1486 p=d=(unsigned char *)s->init_msg;
1488 if ((ca_sk=sk_X509_NAME_new(ca_dn_cmp)) == NULL)
1490 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
1494 /* get the certificate types */
1496 if (ctype_num > SSL3_CT_NUMBER)
1497 ctype_num=SSL3_CT_NUMBER;
1498 for (i=0; i<ctype_num; i++)
1499 s->s3->tmp.ctype[i]= p[i];
1502 /* get the CA RDNs */
1507 out=fopen("/tmp/vsign.der","w");
1508 fwrite(p,1,llen,out);
1513 if ((llen+ctype_num+2+1) != n)
1515 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1516 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_LENGTH_MISMATCH);
1520 for (nc=0; nc<llen; )
1523 if ((l+nc+2) > llen)
1525 if ((s->options & SSL_OP_NETSCAPE_CA_DN_BUG))
1526 goto cont; /* netscape bugs */
1527 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1528 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_TOO_LONG);
1534 if ((xn=d2i_X509_NAME(NULL,&q,l)) == NULL)
1536 /* If netscape tolerance is on, ignore errors */
1537 if (s->options & SSL_OP_NETSCAPE_CA_DN_BUG)
1541 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1542 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_ASN1_LIB);
1549 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1550 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_LENGTH_MISMATCH);
1553 if (!sk_X509_NAME_push(ca_sk,xn))
1555 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
1569 /* we should setup a certificate to return.... */
1570 s->s3->tmp.cert_req=1;
1571 s->s3->tmp.ctype_num=ctype_num;
1572 if (s->s3->tmp.ca_names != NULL)
1573 sk_X509_NAME_pop_free(s->s3->tmp.ca_names,X509_NAME_free);
1574 s->s3->tmp.ca_names=ca_sk;
1579 if (ca_sk != NULL) sk_X509_NAME_pop_free(ca_sk,X509_NAME_free);
1583 static int ca_dn_cmp(const X509_NAME * const *a, const X509_NAME * const *b)
1585 return(X509_NAME_cmp(*a,*b));
1588 int ssl3_get_server_done(SSL *s)
1593 n=s->method->ssl_get_message(s,
1594 SSL3_ST_CR_SRVR_DONE_A,
1595 SSL3_ST_CR_SRVR_DONE_B,
1596 SSL3_MT_SERVER_DONE,
1597 30, /* should be very small, like 0 :-) */
1600 if (!ok) return((int)n);
1603 /* should contain no data */
1604 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
1605 SSLerr(SSL_F_SSL3_GET_SERVER_DONE,SSL_R_LENGTH_MISMATCH);
1613 #ifndef OPENSSL_NO_ECDH
1614 static const int KDF1_SHA1_len = 20;
1615 static void *KDF1_SHA1(const void *in, size_t inlen, void *out, size_t *outlen)
1617 #ifndef OPENSSL_NO_SHA
1618 if (*outlen < SHA_DIGEST_LENGTH)
1621 *outlen = SHA_DIGEST_LENGTH;
1622 return SHA1(in, inlen, out);
1625 #endif /* OPENSSL_NO_SHA */
1627 #endif /* OPENSSL_NO_ECDH */
1629 int ssl3_send_client_key_exchange(SSL *s)
1631 unsigned char *p,*d;
1634 #ifndef OPENSSL_NO_RSA
1636 EVP_PKEY *pkey=NULL;
1638 #ifndef OPENSSL_NO_KRB5
1640 #endif /* OPENSSL_NO_KRB5 */
1641 #ifndef OPENSSL_NO_ECDH
1642 EC_KEY *clnt_ecdh = NULL;
1643 const EC_POINT *srvr_ecpoint = NULL;
1644 EVP_PKEY *srvr_pub_pkey = NULL;
1645 unsigned char *encodedPoint = NULL;
1646 int encoded_pt_len = 0;
1647 BN_CTX * bn_ctx = NULL;
1650 if (s->state == SSL3_ST_CW_KEY_EXCH_A)
1652 d=(unsigned char *)s->init_buf->data;
1655 l=s->s3->tmp.new_cipher->algorithms;
1657 /* Fool emacs indentation */
1659 #ifndef OPENSSL_NO_RSA
1660 else if (l & SSL_kRSA)
1663 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
1665 if (s->session->sess_cert->peer_rsa_tmp != NULL)
1666 rsa=s->session->sess_cert->peer_rsa_tmp;
1669 pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
1670 if ((pkey == NULL) ||
1671 (pkey->type != EVP_PKEY_RSA) ||
1672 (pkey->pkey.rsa == NULL))
1674 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
1678 EVP_PKEY_free(pkey);
1681 tmp_buf[0]=s->client_version>>8;
1682 tmp_buf[1]=s->client_version&0xff;
1683 if (RAND_bytes(&(tmp_buf[2]),sizeof tmp_buf-2) <= 0)
1686 s->session->master_key_length=sizeof tmp_buf;
1689 /* Fix buf for TLS and beyond */
1690 if (s->version > SSL3_VERSION)
1692 n=RSA_public_encrypt(sizeof tmp_buf,
1693 tmp_buf,p,rsa,RSA_PKCS1_PADDING);
1695 if (s->options & SSL_OP_PKCS1_CHECK_1) p[1]++;
1696 if (s->options & SSL_OP_PKCS1_CHECK_2) tmp_buf[0]=0x70;
1700 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_BAD_RSA_ENCRYPT);
1704 /* Fix buf for TLS and beyond */
1705 if (s->version > SSL3_VERSION)
1711 s->session->master_key_length=
1712 s->method->ssl3_enc->generate_master_secret(s,
1713 s->session->master_key,
1714 tmp_buf,sizeof tmp_buf);
1715 OPENSSL_cleanse(tmp_buf,sizeof tmp_buf);
1718 #ifndef OPENSSL_NO_KRB5
1719 else if (l & SSL_kKRB5)
1721 krb5_error_code krb5rc;
1722 KSSL_CTX *kssl_ctx = s->kssl_ctx;
1723 /* krb5_data krb5_ap_req; */
1724 krb5_data *enc_ticket;
1725 krb5_data authenticator, *authp = NULL;
1726 EVP_CIPHER_CTX ciph_ctx;
1727 EVP_CIPHER *enc = NULL;
1728 unsigned char iv[EVP_MAX_IV_LENGTH];
1729 unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
1730 unsigned char epms[SSL_MAX_MASTER_KEY_LENGTH
1731 + EVP_MAX_IV_LENGTH];
1732 int padl, outl = sizeof(epms);
1734 EVP_CIPHER_CTX_init(&ciph_ctx);
1737 printf("ssl3_send_client_key_exchange(%lx & %lx)\n",
1739 #endif /* KSSL_DEBUG */
1743 if (KRB5SENDAUTH) authp = &authenticator;
1744 #endif /* KRB5SENDAUTH */
1746 krb5rc = kssl_cget_tkt(kssl_ctx, &enc_ticket, authp,
1748 enc = kssl_map_enc(kssl_ctx->enctype);
1753 printf("kssl_cget_tkt rtn %d\n", krb5rc);
1754 if (krb5rc && kssl_err.text)
1755 printf("kssl_cget_tkt kssl_err=%s\n", kssl_err.text);
1757 #endif /* KSSL_DEBUG */
1761 ssl3_send_alert(s,SSL3_AL_FATAL,
1762 SSL_AD_HANDSHAKE_FAILURE);
1763 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1768 /* 20010406 VRS - Earlier versions used KRB5 AP_REQ
1769 ** in place of RFC 2712 KerberosWrapper, as in:
1771 ** Send ticket (copy to *p, set n = length)
1772 ** n = krb5_ap_req.length;
1773 ** memcpy(p, krb5_ap_req.data, krb5_ap_req.length);
1774 ** if (krb5_ap_req.data)
1775 ** kssl_krb5_free_data_contents(NULL,&krb5_ap_req);
1777 ** Now using real RFC 2712 KerberosWrapper
1778 ** (Thanks to Simon Wilkinson <sxw@sxw.org.uk>)
1779 ** Note: 2712 "opaque" types are here replaced
1780 ** with a 2-byte length followed by the value.
1782 ** KerberosWrapper= xx xx asn1ticket 0 0 xx xx encpms
1783 ** Where "xx xx" = length bytes. Shown here with
1784 ** optional authenticator omitted.
1787 /* KerberosWrapper.Ticket */
1788 s2n(enc_ticket->length,p);
1789 memcpy(p, enc_ticket->data, enc_ticket->length);
1790 p+= enc_ticket->length;
1791 n = enc_ticket->length + 2;
1793 /* KerberosWrapper.Authenticator */
1794 if (authp && authp->length)
1796 s2n(authp->length,p);
1797 memcpy(p, authp->data, authp->length);
1799 n+= authp->length + 2;
1807 s2n(0,p);/* null authenticator length */
1811 if (RAND_bytes(tmp_buf,sizeof tmp_buf) <= 0)
1814 /* 20010420 VRS. Tried it this way; failed.
1815 ** EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,NULL);
1816 ** EVP_CIPHER_CTX_set_key_length(&ciph_ctx,
1817 ** kssl_ctx->length);
1818 ** EVP_EncryptInit_ex(&ciph_ctx,NULL, key,iv);
1821 memset(iv, 0, sizeof iv); /* per RFC 1510 */
1822 EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,
1824 EVP_EncryptUpdate(&ciph_ctx,epms,&outl,tmp_buf,
1826 EVP_EncryptFinal_ex(&ciph_ctx,&(epms[outl]),&padl);
1828 if (outl > sizeof epms)
1830 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
1833 EVP_CIPHER_CTX_cleanup(&ciph_ctx);
1835 /* KerberosWrapper.EncryptedPreMasterSecret */
1837 memcpy(p, epms, outl);
1841 s->session->master_key_length=
1842 s->method->ssl3_enc->generate_master_secret(s,
1843 s->session->master_key,
1844 tmp_buf, sizeof tmp_buf);
1846 OPENSSL_cleanse(tmp_buf, sizeof tmp_buf);
1847 OPENSSL_cleanse(epms, outl);
1850 #ifndef OPENSSL_NO_DH
1851 else if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
1853 DH *dh_srvr,*dh_clnt;
1855 if (s->session->sess_cert->peer_dh_tmp != NULL)
1856 dh_srvr=s->session->sess_cert->peer_dh_tmp;
1859 /* we get them from the cert */
1860 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1861 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_DH_PARAMETERS);
1865 /* generate a new random key */
1866 if ((dh_clnt=DHparams_dup(dh_srvr)) == NULL)
1868 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1871 if (!DH_generate_key(dh_clnt))
1873 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1877 /* use the 'p' output buffer for the DH key, but
1878 * make sure to clear it out afterwards */
1880 n=DH_compute_key(p,dh_srvr->pub_key,dh_clnt);
1884 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1888 /* generate master key from the result */
1889 s->session->master_key_length=
1890 s->method->ssl3_enc->generate_master_secret(s,
1891 s->session->master_key,p,n);
1895 /* send off the data */
1896 n=BN_num_bytes(dh_clnt->pub_key);
1898 BN_bn2bin(dh_clnt->pub_key,p);
1903 /* perhaps clean things up a bit EAY EAY EAY EAY*/
1907 #ifndef OPENSSL_NO_ECDH
1908 else if ((l & SSL_kECDH) || (l & SSL_kECDHE))
1910 const EC_GROUP *srvr_group = NULL;
1912 int ecdh_clnt_cert = 0;
1915 /* Did we send out the client's
1916 * ECDH share for use in premaster
1917 * computation as part of client certificate?
1918 * If so, set ecdh_clnt_cert to 1.
1920 if ((l & SSL_kECDH) && (s->cert != NULL))
1922 /* XXX: For now, we do not support client
1923 * authentication using ECDH certificates.
1924 * To add such support, one needs to add
1925 * code that checks for appropriate
1926 * conditions and sets ecdh_clnt_cert to 1.
1927 * For example, the cert have an ECC
1928 * key on the same curve as the server's
1929 * and the key should be authorized for
1932 * One also needs to add code in ssl3_connect
1933 * to skip sending the certificate verify
1936 * if ((s->cert->key->privatekey != NULL) &&
1937 * (s->cert->key->privatekey->type ==
1938 * EVP_PKEY_EC) && ...)
1939 * ecdh_clnt_cert = 1;
1943 if (s->session->sess_cert->peer_ecdh_tmp != NULL)
1945 tkey = s->session->sess_cert->peer_ecdh_tmp;
1949 /* Get the Server Public Key from Cert */
1950 srvr_pub_pkey = X509_get_pubkey(s->session-> \
1951 sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
1952 if ((srvr_pub_pkey == NULL) ||
1953 (srvr_pub_pkey->type != EVP_PKEY_EC) ||
1954 (srvr_pub_pkey->pkey.ec == NULL))
1956 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1957 ERR_R_INTERNAL_ERROR);
1961 tkey = srvr_pub_pkey->pkey.ec;
1964 srvr_group = EC_KEY_get0_group(tkey);
1965 srvr_ecpoint = EC_KEY_get0_public_key(tkey);
1967 if ((srvr_group == NULL) || (srvr_ecpoint == NULL))
1969 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1970 ERR_R_INTERNAL_ERROR);
1974 if ((clnt_ecdh=EC_KEY_new()) == NULL)
1976 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1980 if (!EC_KEY_set_group(clnt_ecdh, srvr_group))
1982 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_EC_LIB);
1987 /* Reuse key info from our certificate
1988 * We only need our private key to perform
1989 * the ECDH computation.
1991 const BIGNUM *priv_key;
1992 tkey = s->cert->key->privatekey->pkey.ec;
1993 priv_key = EC_KEY_get0_private_key(tkey);
1994 if (priv_key == NULL)
1996 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1999 if (!EC_KEY_set_private_key(clnt_ecdh, priv_key))
2001 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_EC_LIB);
2007 /* Generate a new ECDH key pair */
2008 if (!(EC_KEY_generate_key(clnt_ecdh)))
2010 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_ECDH_LIB);
2015 /* use the 'p' output buffer for the ECDH key, but
2016 * make sure to clear it out afterwards
2019 field_size = EC_GROUP_get_degree(srvr_group);
2020 if (field_size <= 0)
2022 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2026 /* If field size is not more than 24 octets, then use SHA-1 hash of result;
2027 * otherwise, use result (see section 4.8 of draft-ietf-tls-ecc-03.txt;
2028 * this is new with this version of the Internet Draft).
2030 if (field_size <= 24 * 8)
2031 n=ECDH_compute_key(p, KDF1_SHA1_len, srvr_ecpoint, clnt_ecdh, KDF1_SHA1);
2033 n=ECDH_compute_key(p, (field_size+7)/8, srvr_ecpoint, clnt_ecdh, NULL);
2036 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2041 /* generate master key from the result */
2042 s->session->master_key_length = s->method->ssl3_enc \
2043 -> generate_master_secret(s,
2044 s->session->master_key,
2047 memset(p, 0, n); /* clean up */
2051 /* Send empty client key exch message */
2056 /* First check the size of encoding and
2057 * allocate memory accordingly.
2060 EC_POINT_point2oct(srvr_group,
2061 EC_KEY_get0_public_key(clnt_ecdh),
2062 POINT_CONVERSION_UNCOMPRESSED,
2065 encodedPoint = (unsigned char *)
2066 OPENSSL_malloc(encoded_pt_len *
2067 sizeof(unsigned char));
2068 bn_ctx = BN_CTX_new();
2069 if ((encodedPoint == NULL) ||
2072 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
2076 /* Encode the public key */
2077 n = EC_POINT_point2oct(srvr_group,
2078 EC_KEY_get0_public_key(clnt_ecdh),
2079 POINT_CONVERSION_UNCOMPRESSED,
2080 encodedPoint, encoded_pt_len, bn_ctx);
2082 *p = n; /* length of encoded point */
2083 /* Encoded point will be copied here */
2085 /* copy the point */
2086 memcpy((unsigned char *)p, encodedPoint, n);
2087 /* increment n to account for length field */
2091 /* Free allocated memory */
2092 BN_CTX_free(bn_ctx);
2093 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2094 if (clnt_ecdh != NULL)
2095 EC_KEY_free(clnt_ecdh);
2096 EVP_PKEY_free(srvr_pub_pkey);
2098 #endif /* !OPENSSL_NO_ECDH */
2101 ssl3_send_alert(s, SSL3_AL_FATAL,
2102 SSL_AD_HANDSHAKE_FAILURE);
2103 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
2104 ERR_R_INTERNAL_ERROR);
2108 *(d++)=SSL3_MT_CLIENT_KEY_EXCHANGE;
2111 s->state=SSL3_ST_CW_KEY_EXCH_B;
2112 /* number of bytes to write */
2117 /* SSL3_ST_CW_KEY_EXCH_B */
2118 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2120 #ifndef OPENSSL_NO_ECDH
2121 BN_CTX_free(bn_ctx);
2122 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
2123 if (clnt_ecdh != NULL)
2124 EC_KEY_free(clnt_ecdh);
2125 EVP_PKEY_free(srvr_pub_pkey);
2130 int ssl3_send_client_verify(SSL *s)
2132 unsigned char *p,*d;
2133 unsigned char data[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];
2135 #ifndef OPENSSL_NO_RSA
2139 #if !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
2143 if (s->state == SSL3_ST_CW_CERT_VRFY_A)
2145 d=(unsigned char *)s->init_buf->data;
2147 pkey=s->cert->key->privatekey;
2149 s->method->ssl3_enc->cert_verify_mac(s,&(s->s3->finish_dgst2),
2150 &(data[MD5_DIGEST_LENGTH]));
2152 #ifndef OPENSSL_NO_RSA
2153 if (pkey->type == EVP_PKEY_RSA)
2155 s->method->ssl3_enc->cert_verify_mac(s,
2156 &(s->s3->finish_dgst1),&(data[0]));
2157 if (RSA_sign(NID_md5_sha1, data,
2158 MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH,
2159 &(p[2]), &u, pkey->pkey.rsa) <= 0 )
2161 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_RSA_LIB);
2169 #ifndef OPENSSL_NO_DSA
2170 if (pkey->type == EVP_PKEY_DSA)
2172 if (!DSA_sign(pkey->save_type,
2173 &(data[MD5_DIGEST_LENGTH]),
2174 SHA_DIGEST_LENGTH,&(p[2]),
2175 (unsigned int *)&j,pkey->pkey.dsa))
2177 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_DSA_LIB);
2185 #ifndef OPENSSL_NO_ECDSA
2186 if (pkey->type == EVP_PKEY_EC)
2188 if (!ECDSA_sign(pkey->save_type,
2189 &(data[MD5_DIGEST_LENGTH]),
2190 SHA_DIGEST_LENGTH,&(p[2]),
2191 (unsigned int *)&j,pkey->pkey.ec))
2193 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,
2203 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_INTERNAL_ERROR);
2206 *(d++)=SSL3_MT_CERTIFICATE_VERIFY;
2209 s->state=SSL3_ST_CW_CERT_VRFY_B;
2210 s->init_num=(int)n+4;
2213 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2218 int ssl3_send_client_certificate(SSL *s)
2221 EVP_PKEY *pkey=NULL;
2225 if (s->state == SSL3_ST_CW_CERT_A)
2227 if ((s->cert == NULL) ||
2228 (s->cert->key->x509 == NULL) ||
2229 (s->cert->key->privatekey == NULL))
2230 s->state=SSL3_ST_CW_CERT_B;
2232 s->state=SSL3_ST_CW_CERT_C;
2235 /* We need to get a client cert */
2236 if (s->state == SSL3_ST_CW_CERT_B)
2238 /* If we get an error, we need to
2239 * ssl->rwstate=SSL_X509_LOOKUP; return(-1);
2240 * We then get retied later */
2242 if (s->ctx->client_cert_cb != NULL)
2243 i=s->ctx->client_cert_cb(s,&(x509),&(pkey));
2246 s->rwstate=SSL_X509_LOOKUP;
2249 s->rwstate=SSL_NOTHING;
2250 if ((i == 1) && (pkey != NULL) && (x509 != NULL))
2252 s->state=SSL3_ST_CW_CERT_B;
2253 if ( !SSL_use_certificate(s,x509) ||
2254 !SSL_use_PrivateKey(s,pkey))
2260 SSLerr(SSL_F_SSL3_SEND_CLIENT_CERTIFICATE,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK);
2263 if (x509 != NULL) X509_free(x509);
2264 if (pkey != NULL) EVP_PKEY_free(pkey);
2267 if (s->version == SSL3_VERSION)
2269 s->s3->tmp.cert_req=0;
2270 ssl3_send_alert(s,SSL3_AL_WARNING,SSL_AD_NO_CERTIFICATE);
2275 s->s3->tmp.cert_req=2;
2279 /* Ok, we have a cert */
2280 s->state=SSL3_ST_CW_CERT_C;
2283 if (s->state == SSL3_ST_CW_CERT_C)
2285 s->state=SSL3_ST_CW_CERT_D;
2286 l=ssl3_output_cert_chain(s,
2287 (s->s3->tmp.cert_req == 2)?NULL:s->cert->key->x509);
2291 /* SSL3_ST_CW_CERT_D */
2292 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2295 #define has_bits(i,m) (((i)&(m)) == (m))
2297 int ssl3_check_cert_and_algorithm(SSL *s)
2301 EVP_PKEY *pkey=NULL;
2303 #ifndef OPENSSL_NO_RSA
2306 #ifndef OPENSSL_NO_DH
2310 sc=s->session->sess_cert;
2314 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,ERR_R_INTERNAL_ERROR);
2318 algs=s->s3->tmp.new_cipher->algorithms;
2320 /* we don't have a certificate */
2321 if (algs & (SSL_aDH|SSL_aNULL|SSL_aKRB5))
2324 #ifndef OPENSSL_NO_RSA
2325 rsa=s->session->sess_cert->peer_rsa_tmp;
2327 #ifndef OPENSSL_NO_DH
2328 dh=s->session->sess_cert->peer_dh_tmp;
2331 /* This is the passed certificate */
2333 idx=sc->peer_cert_type;
2334 #ifndef OPENSSL_NO_ECDH
2335 if (idx == SSL_PKEY_ECC)
2337 if (check_srvr_ecc_cert_and_alg(sc->peer_pkeys[idx].x509,
2338 s->s3->tmp.new_cipher) == 0)
2339 { /* check failed */
2340 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_BAD_ECC_CERT);
2349 pkey=X509_get_pubkey(sc->peer_pkeys[idx].x509);
2350 i=X509_certificate_type(sc->peer_pkeys[idx].x509,pkey);
2351 EVP_PKEY_free(pkey);
2354 /* Check that we have a certificate if we require one */
2355 if ((algs & SSL_aRSA) && !has_bits(i,EVP_PK_RSA|EVP_PKT_SIGN))
2357 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_SIGNING_CERT);
2360 #ifndef OPENSSL_NO_DSA
2361 else if ((algs & SSL_aDSS) && !has_bits(i,EVP_PK_DSA|EVP_PKT_SIGN))
2363 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DSA_SIGNING_CERT);
2367 #ifndef OPENSSL_NO_RSA
2368 if ((algs & SSL_kRSA) &&
2369 !(has_bits(i,EVP_PK_RSA|EVP_PKT_ENC) || (rsa != NULL)))
2371 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_ENCRYPTING_CERT);
2375 #ifndef OPENSSL_NO_DH
2376 if ((algs & SSL_kEDH) &&
2377 !(has_bits(i,EVP_PK_DH|EVP_PKT_EXCH) || (dh != NULL)))
2379 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_KEY);
2382 else if ((algs & SSL_kDHr) && !has_bits(i,EVP_PK_DH|EVP_PKS_RSA))
2384 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_RSA_CERT);
2387 #ifndef OPENSSL_NO_DSA
2388 else if ((algs & SSL_kDHd) && !has_bits(i,EVP_PK_DH|EVP_PKS_DSA))
2390 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_DSA_CERT);
2396 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) && !has_bits(i,EVP_PKT_EXP))
2398 #ifndef OPENSSL_NO_RSA
2399 if (algs & SSL_kRSA)
2402 || RSA_size(rsa)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2404 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_RSA_KEY);
2410 #ifndef OPENSSL_NO_DH
2411 if (algs & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
2414 || DH_size(dh)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
2416 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_DH_KEY);
2423 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);
2429 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
2435 #ifndef OPENSSL_NO_ECDH
2436 /* This is the complement of nid2curve_id in s3_srvr.c. */
2437 static int curve_id2nid(int curve_id)
2439 /* ECC curves from draft-ietf-tls-ecc-01.txt (Mar 15, 2001)
2440 * (no changes in draft-ietf-tls-ecc-03.txt [June 2003]) */
2441 static int nid_list[26] =
2444 NID_sect163k1, /* sect163k1 (1) */
2445 NID_sect163r1, /* sect163r1 (2) */
2446 NID_sect163r2, /* sect163r2 (3) */
2447 NID_sect193r1, /* sect193r1 (4) */
2448 NID_sect193r2, /* sect193r2 (5) */
2449 NID_sect233k1, /* sect233k1 (6) */
2450 NID_sect233r1, /* sect233r1 (7) */
2451 NID_sect239k1, /* sect239k1 (8) */
2452 NID_sect283k1, /* sect283k1 (9) */
2453 NID_sect283r1, /* sect283r1 (10) */
2454 NID_sect409k1, /* sect409k1 (11) */
2455 NID_sect409r1, /* sect409r1 (12) */
2456 NID_sect571k1, /* sect571k1 (13) */
2457 NID_sect571r1, /* sect571r1 (14) */
2458 NID_secp160k1, /* secp160k1 (15) */
2459 NID_secp160r1, /* secp160r1 (16) */
2460 NID_secp160r2, /* secp160r2 (17) */
2461 NID_secp192k1, /* secp192k1 (18) */
2462 NID_X9_62_prime192v1, /* secp192r1 (19) */
2463 NID_secp224k1, /* secp224k1 (20) */
2464 NID_secp224r1, /* secp224r1 (21) */
2465 NID_secp256k1, /* secp256k1 (22) */
2466 NID_X9_62_prime256v1, /* secp256r1 (23) */
2467 NID_secp384r1, /* secp384r1 (24) */
2468 NID_secp521r1 /* secp521r1 (25) */
2471 if ((curve_id < 1) || (curve_id > 25)) return 0;
2473 return nid_list[curve_id];