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 #include <openssl/dh.h>
134 #include <openssl/bn.h>
136 static SSL_METHOD
*ssl3_get_client_method(int ver
);
137 static int ca_dn_cmp(const X509_NAME
* const *a
,const X509_NAME
* const *b
);
139 #ifndef OPENSSL_NO_ECDH
140 static int curve_id2nid(int curve_id
);
141 int check_srvr_ecc_cert_and_alg(X509
*x
, SSL_CIPHER
*cs
);
144 static SSL_METHOD
*ssl3_get_client_method(int ver
)
146 if (ver
== SSL3_VERSION
)
147 return(SSLv3_client_method());
152 SSL_METHOD
*SSLv3_client_method(void)
155 static SSL_METHOD SSLv3_client_data
;
159 CRYPTO_w_lock(CRYPTO_LOCK_SSL_METHOD
);
163 memcpy((char *)&SSLv3_client_data
,(char *)sslv3_base_method(),
165 SSLv3_client_data
.ssl_connect
=ssl3_connect
;
166 SSLv3_client_data
.get_ssl_method
=ssl3_get_client_method
;
170 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_METHOD
);
172 return(&SSLv3_client_data
);
175 int ssl3_connect(SSL
*s
)
178 unsigned long Time
=time(NULL
),l
;
180 void (*cb
)(const SSL
*ssl
,int type
,int val
)=NULL
;
182 int new_state
,state
,skip
=0;;
184 RAND_add(&Time
,sizeof(Time
),0);
188 if (s
->info_callback
!= NULL
)
190 else if (s
->ctx
->info_callback
!= NULL
)
191 cb
=s
->ctx
->info_callback
;
194 if (!SSL_in_init(s
) || SSL_in_before(s
)) SSL_clear(s
);
202 case SSL_ST_RENEGOTIATE
:
204 s
->state
=SSL_ST_CONNECT
;
205 s
->ctx
->stats
.sess_connect_renegotiate
++;
209 case SSL_ST_BEFORE
|SSL_ST_CONNECT
:
210 case SSL_ST_OK
|SSL_ST_CONNECT
:
213 if (cb
!= NULL
) cb(s
,SSL_CB_HANDSHAKE_START
,1);
215 if ((s
->version
& 0xff00 ) != 0x0300)
217 SSLerr(SSL_F_SSL3_CONNECT
, ERR_R_INTERNAL_ERROR
);
222 /* s->version=SSL3_VERSION; */
223 s
->type
=SSL_ST_CONNECT
;
225 if (s
->init_buf
== NULL
)
227 if ((buf
=BUF_MEM_new()) == NULL
)
232 if (!BUF_MEM_grow(buf
,SSL3_RT_MAX_PLAIN_LENGTH
))
241 if (!ssl3_setup_buffers(s
)) { ret
= -1; goto end
; }
243 /* setup buffing BIO */
244 if (!ssl_init_wbio_buffer(s
,0)) { ret
= -1; goto end
; }
246 /* don't push the buffering BIO quite yet */
248 ssl3_init_finished_mac(s
);
250 s
->state
=SSL3_ST_CW_CLNT_HELLO_A
;
251 s
->ctx
->stats
.sess_connect
++;
255 case SSL3_ST_CW_CLNT_HELLO_A
:
256 case SSL3_ST_CW_CLNT_HELLO_B
:
259 ret
=ssl3_client_hello(s
);
260 if (ret
<= 0) goto end
;
261 s
->state
=SSL3_ST_CR_SRVR_HELLO_A
;
264 /* turn on buffering for the next lot of output */
265 if (s
->bbio
!= s
->wbio
)
266 s
->wbio
=BIO_push(s
->bbio
,s
->wbio
);
270 case SSL3_ST_CR_SRVR_HELLO_A
:
271 case SSL3_ST_CR_SRVR_HELLO_B
:
272 ret
=ssl3_get_server_hello(s
);
273 if (ret
<= 0) goto end
;
275 s
->state
=SSL3_ST_CR_FINISHED_A
;
277 s
->state
=SSL3_ST_CR_CERT_A
;
281 case SSL3_ST_CR_CERT_A
:
282 case SSL3_ST_CR_CERT_B
:
283 /* Check if it is anon DH/ECDH */
284 if (!(s
->s3
->tmp
.new_cipher
->algorithms
& SSL_aNULL
))
286 ret
=ssl3_get_server_certificate(s
);
287 if (ret
<= 0) goto end
;
291 s
->state
=SSL3_ST_CR_KEY_EXCH_A
;
295 case SSL3_ST_CR_KEY_EXCH_A
:
296 case SSL3_ST_CR_KEY_EXCH_B
:
297 ret
=ssl3_get_key_exchange(s
);
298 if (ret
<= 0) goto end
;
299 s
->state
=SSL3_ST_CR_CERT_REQ_A
;
302 /* at this point we check that we have the
303 * required stuff from the server */
304 if (!ssl3_check_cert_and_algorithm(s
))
311 case SSL3_ST_CR_CERT_REQ_A
:
312 case SSL3_ST_CR_CERT_REQ_B
:
313 ret
=ssl3_get_certificate_request(s
);
314 if (ret
<= 0) goto end
;
315 s
->state
=SSL3_ST_CR_SRVR_DONE_A
;
319 case SSL3_ST_CR_SRVR_DONE_A
:
320 case SSL3_ST_CR_SRVR_DONE_B
:
321 ret
=ssl3_get_server_done(s
);
322 if (ret
<= 0) goto end
;
323 if (s
->s3
->tmp
.cert_req
)
324 s
->state
=SSL3_ST_CW_CERT_A
;
326 s
->state
=SSL3_ST_CW_KEY_EXCH_A
;
331 case SSL3_ST_CW_CERT_A
:
332 case SSL3_ST_CW_CERT_B
:
333 case SSL3_ST_CW_CERT_C
:
334 case SSL3_ST_CW_CERT_D
:
335 ret
=ssl3_send_client_certificate(s
);
336 if (ret
<= 0) goto end
;
337 s
->state
=SSL3_ST_CW_KEY_EXCH_A
;
341 case SSL3_ST_CW_KEY_EXCH_A
:
342 case SSL3_ST_CW_KEY_EXCH_B
:
343 ret
=ssl3_send_client_key_exchange(s
);
344 if (ret
<= 0) goto end
;
345 l
=s
->s3
->tmp
.new_cipher
->algorithms
;
346 /* EAY EAY EAY need to check for DH fix cert
348 /* For TLS, cert_req is set to 2, so a cert chain
349 * of nothing is sent, but no verify packet is sent */
350 /* XXX: For now, we do not support client
351 * authentication in ECDH cipher suites with
352 * ECDH (rather than ECDSA) certificates.
353 * We need to skip the certificate verify
354 * message when client's ECDH public key is sent
355 * inside the client certificate.
357 if (s
->s3
->tmp
.cert_req
== 1)
359 s
->state
=SSL3_ST_CW_CERT_VRFY_A
;
363 s
->state
=SSL3_ST_CW_CHANGE_A
;
364 s
->s3
->change_cipher_spec
=0;
370 case SSL3_ST_CW_CERT_VRFY_A
:
371 case SSL3_ST_CW_CERT_VRFY_B
:
372 ret
=ssl3_send_client_verify(s
);
373 if (ret
<= 0) goto end
;
374 s
->state
=SSL3_ST_CW_CHANGE_A
;
376 s
->s3
->change_cipher_spec
=0;
379 case SSL3_ST_CW_CHANGE_A
:
380 case SSL3_ST_CW_CHANGE_B
:
381 ret
=ssl3_send_change_cipher_spec(s
,
382 SSL3_ST_CW_CHANGE_A
,SSL3_ST_CW_CHANGE_B
);
383 if (ret
<= 0) goto end
;
384 s
->state
=SSL3_ST_CW_FINISHED_A
;
387 s
->session
->cipher
=s
->s3
->tmp
.new_cipher
;
388 if (s
->s3
->tmp
.new_compression
== NULL
)
389 s
->session
->compress_meth
=0;
391 s
->session
->compress_meth
=
392 s
->s3
->tmp
.new_compression
->id
;
393 if (!s
->method
->ssl3_enc
->setup_key_block(s
))
399 if (!s
->method
->ssl3_enc
->change_cipher_state(s
,
400 SSL3_CHANGE_CIPHER_CLIENT_WRITE
))
408 case SSL3_ST_CW_FINISHED_A
:
409 case SSL3_ST_CW_FINISHED_B
:
410 ret
=ssl3_send_finished(s
,
411 SSL3_ST_CW_FINISHED_A
,SSL3_ST_CW_FINISHED_B
,
412 s
->method
->ssl3_enc
->client_finished_label
,
413 s
->method
->ssl3_enc
->client_finished_label_len
);
414 if (ret
<= 0) goto end
;
415 s
->state
=SSL3_ST_CW_FLUSH
;
418 s
->s3
->flags
&= ~SSL3_FLAGS_POP_BUFFER
;
421 s
->s3
->tmp
.next_state
=SSL_ST_OK
;
422 if (s
->s3
->flags
& SSL3_FLAGS_DELAY_CLIENT_FINISHED
)
425 s
->s3
->flags
|=SSL3_FLAGS_POP_BUFFER
;
426 s
->s3
->delay_buf_pop_ret
=0;
431 s
->s3
->tmp
.next_state
=SSL3_ST_CR_FINISHED_A
;
436 case SSL3_ST_CR_FINISHED_A
:
437 case SSL3_ST_CR_FINISHED_B
:
439 ret
=ssl3_get_finished(s
,SSL3_ST_CR_FINISHED_A
,
440 SSL3_ST_CR_FINISHED_B
);
441 if (ret
<= 0) goto end
;
444 s
->state
=SSL3_ST_CW_CHANGE_A
;
450 case SSL3_ST_CW_FLUSH
:
451 /* number of bytes to be flushed */
452 num1
=BIO_ctrl(s
->wbio
,BIO_CTRL_INFO
,0,NULL
);
455 s
->rwstate
=SSL_WRITING
;
456 num1
=BIO_flush(s
->wbio
);
457 if (num1
<= 0) { ret
= -1; goto end
; }
458 s
->rwstate
=SSL_NOTHING
;
461 s
->state
=s
->s3
->tmp
.next_state
;
465 /* clean a few things up */
466 ssl3_cleanup_key_block(s
);
468 if (s
->init_buf
!= NULL
)
470 BUF_MEM_free(s
->init_buf
);
474 /* If we are not 'joining' the last two packets,
475 * remove the buffering now */
476 if (!(s
->s3
->flags
& SSL3_FLAGS_POP_BUFFER
))
477 ssl_free_wbio_buffer(s
);
478 /* else do it later in ssl3_write */
483 ssl_update_cache(s
,SSL_SESS_CACHE_CLIENT
);
484 if (s
->hit
) s
->ctx
->stats
.sess_hit
++;
488 s
->handshake_func
=ssl3_connect
;
489 s
->ctx
->stats
.sess_connect_good
++;
491 if (cb
!= NULL
) cb(s
,SSL_CB_HANDSHAKE_DONE
,1);
497 SSLerr(SSL_F_SSL3_CONNECT
,SSL_R_UNKNOWN_STATE
);
503 /* did we do anything */
504 if (!s
->s3
->tmp
.reuse_message
&& !skip
)
508 if ((ret
=BIO_flush(s
->wbio
)) <= 0)
512 if ((cb
!= NULL
) && (s
->state
!= state
))
516 cb(s
,SSL_CB_CONNECT_LOOP
,1);
527 cb(s
,SSL_CB_CONNECT_EXIT
,ret
);
532 int ssl3_client_hello(SSL
*s
)
537 unsigned long Time
,l
;
540 buf
=(unsigned char *)s
->init_buf
->data
;
541 if (s
->state
== SSL3_ST_CW_CLNT_HELLO_A
)
543 if ((s
->session
== NULL
) ||
544 (s
->session
->ssl_version
!= s
->version
) ||
545 (s
->session
->not_resumable
))
547 if (!ssl_get_new_session(s
,0))
550 /* else use the pre-loaded session */
552 p
=s
->s3
->client_random
;
553 Time
=time(NULL
); /* Time */
555 if (RAND_pseudo_bytes(p
,SSL3_RANDOM_SIZE
-4) <= 0)
558 /* Do the message type and length last */
561 *(p
++)=s
->version
>>8;
562 *(p
++)=s
->version
&0xff;
563 s
->client_version
=s
->version
;
566 memcpy(p
,s
->s3
->client_random
,SSL3_RANDOM_SIZE
);
573 i
=s
->session
->session_id_length
;
577 if (i
> (int)sizeof(s
->session
->session_id
))
579 SSLerr(SSL_F_SSL3_CLIENT_HELLO
, ERR_R_INTERNAL_ERROR
);
582 memcpy(p
,s
->session
->session_id
,i
);
586 /* Ciphers supported */
587 i
=ssl_cipher_list_to_bytes(s
,SSL_get_ciphers(s
),&(p
[2]),0);
590 SSLerr(SSL_F_SSL3_CLIENT_HELLO
,SSL_R_NO_CIPHERS_AVAILABLE
);
597 if (s
->ctx
->comp_methods
== NULL
)
600 j
=sk_SSL_COMP_num(s
->ctx
->comp_methods
);
604 comp
=sk_SSL_COMP_value(s
->ctx
->comp_methods
,i
);
607 *(p
++)=0; /* Add the NULL method */
611 *(d
++)=SSL3_MT_CLIENT_HELLO
;
614 s
->state
=SSL3_ST_CW_CLNT_HELLO_B
;
615 /* number of bytes to write */
620 /* SSL3_ST_CW_CLNT_HELLO_B */
621 return(ssl3_do_write(s
,SSL3_RT_HANDSHAKE
));
626 int ssl3_get_server_hello(SSL
*s
)
628 STACK_OF(SSL_CIPHER
) *sk
;
636 n
=s
->method
->ssl_get_message(s
,
637 SSL3_ST_CR_SRVR_HELLO_A
,
638 SSL3_ST_CR_SRVR_HELLO_B
,
643 if (!ok
) return((int)n
);
645 if ( SSL_version(s
) == DTLS1_VERSION
)
647 if ( s
->s3
->tmp
.message_type
== DTLS1_MT_HELLO_VERIFY_REQUEST
)
649 if ( s
->d1
->send_cookie
== 0)
651 s
->s3
->tmp
.reuse_message
= 1;
654 else /* already sent a cookie */
656 al
=SSL_AD_UNEXPECTED_MESSAGE
;
657 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO
,SSL_R_BAD_MESSAGE_TYPE
);
663 if ( s
->s3
->tmp
.message_type
!= SSL3_MT_SERVER_HELLO
)
665 al
=SSL_AD_UNEXPECTED_MESSAGE
;
666 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO
,SSL_R_BAD_MESSAGE_TYPE
);
670 d
=p
=(unsigned char *)s
->init_msg
;
672 if ((p
[0] != (s
->version
>>8)) || (p
[1] != (s
->version
&0xff)))
674 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO
,SSL_R_WRONG_SSL_VERSION
);
675 s
->version
=(s
->version
&0xff00)|p
[1];
676 al
=SSL_AD_PROTOCOL_VERSION
;
681 /* load the server hello data */
682 /* load the server random */
683 memcpy(s
->s3
->server_random
,p
,SSL3_RANDOM_SIZE
);
686 /* get the session-id */
689 if ((j
> sizeof s
->session
->session_id
) || (j
> SSL3_SESSION_ID_SIZE
))
691 al
=SSL_AD_ILLEGAL_PARAMETER
;
692 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO
,SSL_R_SSL3_SESSION_ID_TOO_LONG
);
696 if (j
!= 0 && j
== s
->session
->session_id_length
697 && memcmp(p
,s
->session
->session_id
,j
) == 0)
699 if(s
->sid_ctx_length
!= s
->session
->sid_ctx_length
700 || memcmp(s
->session
->sid_ctx
,s
->sid_ctx
,s
->sid_ctx_length
))
702 /* actually a client application bug */
703 al
=SSL_AD_ILLEGAL_PARAMETER
;
704 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO
,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT
);
709 else /* a miss or crap from the other end */
711 /* If we were trying for session-id reuse, make a new
712 * SSL_SESSION so we don't stuff up other people */
714 if (s
->session
->session_id_length
> 0)
716 if (!ssl_get_new_session(s
,0))
718 al
=SSL_AD_INTERNAL_ERROR
;
722 s
->session
->session_id_length
=j
;
723 memcpy(s
->session
->session_id
,p
,j
); /* j could be 0 */
726 c
=ssl_get_cipher_by_char(s
,p
);
730 al
=SSL_AD_ILLEGAL_PARAMETER
;
731 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO
,SSL_R_UNKNOWN_CIPHER_RETURNED
);
734 p
+=ssl_put_cipher_by_char(s
,NULL
,NULL
);
736 sk
=ssl_get_ciphers_by_id(s
);
737 i
=sk_SSL_CIPHER_find(sk
,c
);
740 /* we did not say we would use this cipher */
741 al
=SSL_AD_ILLEGAL_PARAMETER
;
742 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO
,SSL_R_WRONG_CIPHER_RETURNED
);
746 /* Depending on the session caching (internal/external), the cipher
747 and/or cipher_id values may not be set. Make sure that
748 cipher_id is set and use it for comparison. */
749 if (s
->session
->cipher
)
750 s
->session
->cipher_id
= s
->session
->cipher
->id
;
751 if (s
->hit
&& (s
->session
->cipher_id
!= c
->id
))
754 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG
))
756 al
=SSL_AD_ILLEGAL_PARAMETER
;
757 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO
,SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED
);
761 s
->s3
->tmp
.new_cipher
=c
;
763 /* lets get the compression algorithm */
769 comp
=ssl3_comp_find(s
->ctx
->comp_methods
,j
);
771 if ((j
!= 0) && (comp
== NULL
))
773 al
=SSL_AD_ILLEGAL_PARAMETER
;
774 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO
,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM
);
779 s
->s3
->tmp
.new_compression
=comp
;
784 /* wrong packet length */
785 al
=SSL_AD_DECODE_ERROR
;
786 SSLerr(SSL_F_SSL3_GET_SERVER_HELLO
,SSL_R_BAD_PACKET_LENGTH
);
792 ssl3_send_alert(s
,SSL3_AL_FATAL
,al
);
797 int ssl3_get_server_certificate(SSL
*s
)
800 unsigned long n
,nc
,llen
,l
;
802 const unsigned char *q
,*p
;
804 STACK_OF(X509
) *sk
=NULL
;
807 int need_cert
= 1; /* VRS: 0=> will allow null cert if auth == KRB5 */
809 n
=s
->method
->ssl_get_message(s
,
816 if (!ok
) return((int)n
);
818 if (s
->s3
->tmp
.message_type
== SSL3_MT_SERVER_KEY_EXCHANGE
)
820 s
->s3
->tmp
.reuse_message
=1;
824 if (s
->s3
->tmp
.message_type
!= SSL3_MT_CERTIFICATE
)
826 al
=SSL_AD_UNEXPECTED_MESSAGE
;
827 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE
,SSL_R_BAD_MESSAGE_TYPE
);
830 p
=d
=(unsigned char *)s
->init_msg
;
832 if ((sk
=sk_X509_new_null()) == NULL
)
834 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE
,ERR_R_MALLOC_FAILURE
);
841 al
=SSL_AD_DECODE_ERROR
;
842 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE
,SSL_R_LENGTH_MISMATCH
);
845 for (nc
=0; nc
<llen
; )
850 al
=SSL_AD_DECODE_ERROR
;
851 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE
,SSL_R_CERT_LENGTH_MISMATCH
);
856 x
=d2i_X509(NULL
,&q
,l
);
859 al
=SSL_AD_BAD_CERTIFICATE
;
860 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE
,ERR_R_ASN1_LIB
);
865 al
=SSL_AD_DECODE_ERROR
;
866 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE
,SSL_R_CERT_LENGTH_MISMATCH
);
869 if (!sk_X509_push(sk
,x
))
871 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE
,ERR_R_MALLOC_FAILURE
);
879 i
=ssl_verify_cert_chain(s
,sk
);
880 if ((s
->verify_mode
!= SSL_VERIFY_NONE
) && (!i
)
881 #ifndef OPENSSL_NO_KRB5
882 && (s
->s3
->tmp
.new_cipher
->algorithms
& (SSL_MKEY_MASK
|SSL_AUTH_MASK
))
883 != (SSL_aKRB5
|SSL_kKRB5
)
884 #endif /* OPENSSL_NO_KRB5 */
887 al
=ssl_verify_alarm_type(s
->verify_result
);
888 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE
,SSL_R_CERTIFICATE_VERIFY_FAILED
);
891 ERR_clear_error(); /* but we keep s->verify_result */
893 sc
=ssl_sess_cert_new();
894 if (sc
== NULL
) goto err
;
896 if (s
->session
->sess_cert
) ssl_sess_cert_free(s
->session
->sess_cert
);
897 s
->session
->sess_cert
=sc
;
900 /* Inconsistency alert: cert_chain does include the peer's
901 * certificate, which we don't include in s3_srvr.c */
902 x
=sk_X509_value(sk
,0);
904 /* VRS 19990621: possible memory leak; sk=null ==> !sk_pop_free() @end*/
906 pkey
=X509_get_pubkey(x
);
908 /* VRS: allow null cert if auth == KRB5 */
909 need_cert
= ((s
->s3
->tmp
.new_cipher
->algorithms
910 & (SSL_MKEY_MASK
|SSL_AUTH_MASK
))
911 == (SSL_aKRB5
|SSL_kKRB5
))? 0: 1;
914 printf("pkey,x = %p, %p\n", pkey
,x
);
915 printf("ssl_cert_type(x,pkey) = %d\n", ssl_cert_type(x
,pkey
));
916 printf("cipher, alg, nc = %s, %lx, %d\n", s
->s3
->tmp
.new_cipher
->name
,
917 s
->s3
->tmp
.new_cipher
->algorithms
, need_cert
);
918 #endif /* KSSL_DEBUG */
920 if (need_cert
&& ((pkey
== NULL
) || EVP_PKEY_missing_parameters(pkey
)))
924 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE
,
925 SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS
);
929 i
=ssl_cert_type(x
,pkey
);
930 if (need_cert
&& i
< 0)
934 SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE
,
935 SSL_R_UNKNOWN_CERTIFICATE_TYPE
);
941 sc
->peer_cert_type
=i
;
942 CRYPTO_add(&x
->references
,1,CRYPTO_LOCK_X509
);
943 /* Why would the following ever happen?
944 * We just created sc a couple of lines ago. */
945 if (sc
->peer_pkeys
[i
].x509
!= NULL
)
946 X509_free(sc
->peer_pkeys
[i
].x509
);
947 sc
->peer_pkeys
[i
].x509
=x
;
948 sc
->peer_key
= &(sc
->peer_pkeys
[i
]);
950 if (s
->session
->peer
!= NULL
)
951 X509_free(s
->session
->peer
);
952 CRYPTO_add(&x
->references
,1,CRYPTO_LOCK_X509
);
957 sc
->peer_cert_type
=i
;
960 if (s
->session
->peer
!= NULL
)
961 X509_free(s
->session
->peer
);
962 s
->session
->peer
=NULL
;
964 s
->session
->verify_result
= s
->verify_result
;
972 ssl3_send_alert(s
,SSL3_AL_FATAL
,al
);
977 sk_X509_pop_free(sk
,X509_free
);
981 int ssl3_get_key_exchange(SSL
*s
)
983 #ifndef OPENSSL_NO_RSA
984 unsigned char *q
,md_buf
[EVP_MAX_MD_SIZE
*2];
987 unsigned char *param
,*p
;
988 int al
,i
,j
,param_len
,ok
;
991 #ifndef OPENSSL_NO_RSA
994 #ifndef OPENSSL_NO_DH
997 #ifndef OPENSSL_NO_ECDH
999 BN_CTX
*bn_ctx
= NULL
;
1000 EC_POINT
*srvr_ecpoint
= NULL
;
1002 int encoded_pt_len
= 0;
1005 /* use same message size as in ssl3_get_certificate_request()
1006 * as ServerKeyExchange message may be skipped */
1007 n
=s
->method
->ssl_get_message(s
,
1008 SSL3_ST_CR_KEY_EXCH_A
,
1009 SSL3_ST_CR_KEY_EXCH_B
,
1014 if (!ok
) return((int)n
);
1016 if (s
->s3
->tmp
.message_type
!= SSL3_MT_SERVER_KEY_EXCHANGE
)
1018 s
->s3
->tmp
.reuse_message
=1;
1022 param
=p
=(unsigned char *)s
->init_msg
;
1024 if (s
->session
->sess_cert
!= NULL
)
1026 #ifndef OPENSSL_NO_RSA
1027 if (s
->session
->sess_cert
->peer_rsa_tmp
!= NULL
)
1029 RSA_free(s
->session
->sess_cert
->peer_rsa_tmp
);
1030 s
->session
->sess_cert
->peer_rsa_tmp
=NULL
;
1033 #ifndef OPENSSL_NO_DH
1034 if (s
->session
->sess_cert
->peer_dh_tmp
)
1036 DH_free(s
->session
->sess_cert
->peer_dh_tmp
);
1037 s
->session
->sess_cert
->peer_dh_tmp
=NULL
;
1040 #ifndef OPENSSL_NO_ECDH
1041 if (s
->session
->sess_cert
->peer_ecdh_tmp
)
1043 EC_KEY_free(s
->session
->sess_cert
->peer_ecdh_tmp
);
1044 s
->session
->sess_cert
->peer_ecdh_tmp
=NULL
;
1050 s
->session
->sess_cert
=ssl_sess_cert_new();
1054 alg
=s
->s3
->tmp
.new_cipher
->algorithms
;
1055 EVP_MD_CTX_init(&md_ctx
);
1057 #ifndef OPENSSL_NO_RSA
1060 if ((rsa
=RSA_new()) == NULL
)
1062 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,ERR_R_MALLOC_FAILURE
);
1069 al
=SSL_AD_DECODE_ERROR
;
1070 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,SSL_R_BAD_RSA_MODULUS_LENGTH
);
1073 if (!(rsa
->n
=BN_bin2bn(p
,i
,rsa
->n
)))
1075 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,ERR_R_BN_LIB
);
1084 al
=SSL_AD_DECODE_ERROR
;
1085 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,SSL_R_BAD_RSA_E_LENGTH
);
1088 if (!(rsa
->e
=BN_bin2bn(p
,i
,rsa
->e
)))
1090 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,ERR_R_BN_LIB
);
1096 /* this should be because we are using an export cipher */
1098 pkey
=X509_get_pubkey(s
->session
->sess_cert
->peer_pkeys
[SSL_PKEY_RSA_ENC
].x509
);
1101 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,ERR_R_INTERNAL_ERROR
);
1104 s
->session
->sess_cert
->peer_rsa_tmp
=rsa
;
1107 #else /* OPENSSL_NO_RSA */
1111 #ifndef OPENSSL_NO_DH
1112 else if (alg
& SSL_kEDH
)
1114 if ((dh
=DH_new()) == NULL
)
1116 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,ERR_R_DH_LIB
);
1123 al
=SSL_AD_DECODE_ERROR
;
1124 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,SSL_R_BAD_DH_P_LENGTH
);
1127 if (!(dh
->p
=BN_bin2bn(p
,i
,NULL
)))
1129 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,ERR_R_BN_LIB
);
1138 al
=SSL_AD_DECODE_ERROR
;
1139 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,SSL_R_BAD_DH_G_LENGTH
);
1142 if (!(dh
->g
=BN_bin2bn(p
,i
,NULL
)))
1144 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,ERR_R_BN_LIB
);
1153 al
=SSL_AD_DECODE_ERROR
;
1154 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,SSL_R_BAD_DH_PUB_KEY_LENGTH
);
1157 if (!(dh
->pub_key
=BN_bin2bn(p
,i
,NULL
)))
1159 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,ERR_R_BN_LIB
);
1165 #ifndef OPENSSL_NO_RSA
1167 pkey
=X509_get_pubkey(s
->session
->sess_cert
->peer_pkeys
[SSL_PKEY_RSA_ENC
].x509
);
1172 #ifndef OPENSSL_NO_DSA
1173 else if (alg
& SSL_aDSS
)
1174 pkey
=X509_get_pubkey(s
->session
->sess_cert
->peer_pkeys
[SSL_PKEY_DSA_SIGN
].x509
);
1176 /* else anonymous DH, so no certificate or pkey. */
1178 s
->session
->sess_cert
->peer_dh_tmp
=dh
;
1181 else if ((alg
& SSL_kDHr
) || (alg
& SSL_kDHd
))
1183 al
=SSL_AD_ILLEGAL_PARAMETER
;
1184 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER
);
1187 #endif /* !OPENSSL_NO_DH */
1189 #ifndef OPENSSL_NO_ECDH
1190 else if (alg
& SSL_kECDHE
)
1193 const EC_GROUP
*group
;
1195 if ((ecdh
=EC_KEY_new()) == NULL
)
1197 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,ERR_R_MALLOC_FAILURE
);
1201 /* Extract elliptic curve parameters and the
1202 * server's ephemeral ECDH public key.
1203 * Keep accumulating lengths of various components in
1204 * param_len and make sure it never exceeds n.
1207 /* XXX: For now we only support named (not generic) curves
1208 * and the ECParameters in this case is just two bytes.
1211 if ((param_len
> n
) ||
1212 (*p
!= NAMED_CURVE_TYPE
) ||
1213 ((curve_nid
= curve_id2nid(*(p
+ 1))) == 0))
1215 al
=SSL_AD_INTERNAL_ERROR
;
1216 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS
);
1220 ngroup
= EC_GROUP_new_by_curve_name(curve_nid
);
1223 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,ERR_R_EC_LIB
);
1226 if (EC_KEY_set_group(ecdh
, ngroup
) == 0)
1228 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,ERR_R_EC_LIB
);
1231 EC_GROUP_free(ngroup
);
1233 group
= EC_KEY_get0_group(ecdh
);
1235 if (SSL_C_IS_EXPORT(s
->s3
->tmp
.new_cipher
) &&
1236 (EC_GROUP_get_degree(group
) > 163))
1238 al
=SSL_AD_EXPORT_RESTRICTION
;
1239 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER
);
1245 /* Next, get the encoded ECPoint */
1246 if (((srvr_ecpoint
= EC_POINT_new(group
)) == NULL
) ||
1247 ((bn_ctx
= BN_CTX_new()) == NULL
))
1249 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,ERR_R_MALLOC_FAILURE
);
1253 encoded_pt_len
= *p
; /* length of encoded point */
1255 param_len
+= (1 + encoded_pt_len
);
1256 if ((param_len
> n
) ||
1257 (EC_POINT_oct2point(group
, srvr_ecpoint
,
1258 p
, encoded_pt_len
, bn_ctx
) == 0))
1260 al
=SSL_AD_DECODE_ERROR
;
1261 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,SSL_R_BAD_ECPOINT
);
1268 /* The ECC/TLS specification does not mention
1269 * the use of DSA to sign ECParameters in the server
1270 * key exchange message. We do support RSA and ECDSA.
1273 #ifndef OPENSSL_NO_RSA
1274 else if (alg
& SSL_aRSA
)
1275 pkey
=X509_get_pubkey(s
->session
->sess_cert
->peer_pkeys
[SSL_PKEY_RSA_ENC
].x509
);
1277 #ifndef OPENSSL_NO_ECDSA
1278 else if (alg
& SSL_aECDSA
)
1279 pkey
=X509_get_pubkey(s
->session
->sess_cert
->peer_pkeys
[SSL_PKEY_ECC
].x509
);
1281 /* else anonymous ECDH, so no certificate or pkey. */
1282 EC_KEY_set_public_key(ecdh
, srvr_ecpoint
);
1283 s
->session
->sess_cert
->peer_ecdh_tmp
=ecdh
;
1285 BN_CTX_free(bn_ctx
);
1286 EC_POINT_free(srvr_ecpoint
);
1287 srvr_ecpoint
= NULL
;
1289 else if (alg
& SSL_kECDH
)
1291 al
=SSL_AD_UNEXPECTED_MESSAGE
;
1292 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,SSL_R_UNEXPECTED_MESSAGE
);
1295 #endif /* !OPENSSL_NO_ECDH */
1298 al
=SSL_AD_HANDSHAKE_FAILURE
;
1299 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER
);
1304 /* p points to the next byte, there are 'n' bytes left */
1306 /* if it was signed, check the signature */
1311 j
=EVP_PKEY_size(pkey
);
1313 if ((i
!= n
) || (n
> j
) || (n
<= 0))
1315 /* wrong packet length */
1316 al
=SSL_AD_DECODE_ERROR
;
1317 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,SSL_R_WRONG_SIGNATURE_LENGTH
);
1321 #ifndef OPENSSL_NO_RSA
1322 if (pkey
->type
== EVP_PKEY_RSA
)
1328 for (num
=2; num
> 0; num
--)
1330 EVP_DigestInit_ex(&md_ctx
,(num
== 2)
1331 ?s
->ctx
->md5
:s
->ctx
->sha1
, NULL
);
1332 EVP_DigestUpdate(&md_ctx
,&(s
->s3
->client_random
[0]),SSL3_RANDOM_SIZE
);
1333 EVP_DigestUpdate(&md_ctx
,&(s
->s3
->server_random
[0]),SSL3_RANDOM_SIZE
);
1334 EVP_DigestUpdate(&md_ctx
,param
,param_len
);
1335 EVP_DigestFinal_ex(&md_ctx
,q
,(unsigned int *)&i
);
1339 i
=RSA_verify(NID_md5_sha1
, md_buf
, j
, p
, n
,
1343 al
=SSL_AD_DECRYPT_ERROR
;
1344 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,SSL_R_BAD_RSA_DECRYPT
);
1350 al
=SSL_AD_DECRYPT_ERROR
;
1351 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,SSL_R_BAD_SIGNATURE
);
1357 #ifndef OPENSSL_NO_DSA
1358 if (pkey
->type
== EVP_PKEY_DSA
)
1361 EVP_VerifyInit_ex(&md_ctx
,EVP_dss1(), NULL
);
1362 EVP_VerifyUpdate(&md_ctx
,&(s
->s3
->client_random
[0]),SSL3_RANDOM_SIZE
);
1363 EVP_VerifyUpdate(&md_ctx
,&(s
->s3
->server_random
[0]),SSL3_RANDOM_SIZE
);
1364 EVP_VerifyUpdate(&md_ctx
,param
,param_len
);
1365 if (!EVP_VerifyFinal(&md_ctx
,p
,(int)n
,pkey
))
1368 al
=SSL_AD_DECRYPT_ERROR
;
1369 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,SSL_R_BAD_SIGNATURE
);
1375 #ifndef OPENSSL_NO_ECDSA
1376 if (pkey
->type
== EVP_PKEY_EC
)
1378 /* let's do ECDSA */
1379 EVP_VerifyInit_ex(&md_ctx
,EVP_ecdsa(), NULL
);
1380 EVP_VerifyUpdate(&md_ctx
,&(s
->s3
->client_random
[0]),SSL3_RANDOM_SIZE
);
1381 EVP_VerifyUpdate(&md_ctx
,&(s
->s3
->server_random
[0]),SSL3_RANDOM_SIZE
);
1382 EVP_VerifyUpdate(&md_ctx
,param
,param_len
);
1383 if (!EVP_VerifyFinal(&md_ctx
,p
,(int)n
,pkey
))
1386 al
=SSL_AD_DECRYPT_ERROR
;
1387 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,SSL_R_BAD_SIGNATURE
);
1394 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,ERR_R_INTERNAL_ERROR
);
1400 /* still data left over */
1401 if (!(alg
& SSL_aNULL
))
1403 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,ERR_R_INTERNAL_ERROR
);
1408 al
=SSL_AD_DECODE_ERROR
;
1409 SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE
,SSL_R_EXTRA_DATA_IN_MESSAGE
);
1413 EVP_PKEY_free(pkey
);
1414 EVP_MD_CTX_cleanup(&md_ctx
);
1417 ssl3_send_alert(s
,SSL3_AL_FATAL
,al
);
1419 EVP_PKEY_free(pkey
);
1420 #ifndef OPENSSL_NO_RSA
1424 #ifndef OPENSSL_NO_DH
1428 #ifndef OPENSSL_NO_ECDH
1429 BN_CTX_free(bn_ctx
);
1430 EC_POINT_free(srvr_ecpoint
);
1434 EVP_MD_CTX_cleanup(&md_ctx
);
1438 int ssl3_get_certificate_request(SSL
*s
)
1441 unsigned long n
,nc
,l
;
1442 unsigned int llen
,ctype_num
,i
;
1444 const unsigned char *p
,*q
;
1446 STACK_OF(X509_NAME
) *ca_sk
=NULL
;
1448 n
=s
->method
->ssl_get_message(s
,
1449 SSL3_ST_CR_CERT_REQ_A
,
1450 SSL3_ST_CR_CERT_REQ_B
,
1455 if (!ok
) return((int)n
);
1457 s
->s3
->tmp
.cert_req
=0;
1459 if (s
->s3
->tmp
.message_type
== SSL3_MT_SERVER_DONE
)
1461 s
->s3
->tmp
.reuse_message
=1;
1465 if (s
->s3
->tmp
.message_type
!= SSL3_MT_CERTIFICATE_REQUEST
)
1467 ssl3_send_alert(s
,SSL3_AL_FATAL
,SSL_AD_UNEXPECTED_MESSAGE
);
1468 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST
,SSL_R_WRONG_MESSAGE_TYPE
);
1472 /* TLS does not like anon-DH with client cert */
1473 if (s
->version
> SSL3_VERSION
)
1475 l
=s
->s3
->tmp
.new_cipher
->algorithms
;
1478 ssl3_send_alert(s
,SSL3_AL_FATAL
,SSL_AD_UNEXPECTED_MESSAGE
);
1479 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST
,SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER
);
1484 p
=d
=(unsigned char *)s
->init_msg
;
1486 if ((ca_sk
=sk_X509_NAME_new(ca_dn_cmp
)) == NULL
)
1488 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST
,ERR_R_MALLOC_FAILURE
);
1492 /* get the certificate types */
1494 if (ctype_num
> SSL3_CT_NUMBER
)
1495 ctype_num
=SSL3_CT_NUMBER
;
1496 for (i
=0; i
<ctype_num
; i
++)
1497 s
->s3
->tmp
.ctype
[i
]= p
[i
];
1500 /* get the CA RDNs */
1505 out
=fopen("/tmp/vsign.der","w");
1506 fwrite(p
,1,llen
,out
);
1511 if ((llen
+ctype_num
+2+1) != n
)
1513 ssl3_send_alert(s
,SSL3_AL_FATAL
,SSL_AD_DECODE_ERROR
);
1514 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST
,SSL_R_LENGTH_MISMATCH
);
1518 for (nc
=0; nc
<llen
; )
1521 if ((l
+nc
+2) > llen
)
1523 if ((s
->options
& SSL_OP_NETSCAPE_CA_DN_BUG
))
1524 goto cont
; /* netscape bugs */
1525 ssl3_send_alert(s
,SSL3_AL_FATAL
,SSL_AD_DECODE_ERROR
);
1526 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST
,SSL_R_CA_DN_TOO_LONG
);
1532 if ((xn
=d2i_X509_NAME(NULL
,&q
,l
)) == NULL
)
1534 /* If netscape tolerance is on, ignore errors */
1535 if (s
->options
& SSL_OP_NETSCAPE_CA_DN_BUG
)
1539 ssl3_send_alert(s
,SSL3_AL_FATAL
,SSL_AD_DECODE_ERROR
);
1540 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST
,ERR_R_ASN1_LIB
);
1547 ssl3_send_alert(s
,SSL3_AL_FATAL
,SSL_AD_DECODE_ERROR
);
1548 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST
,SSL_R_CA_DN_LENGTH_MISMATCH
);
1551 if (!sk_X509_NAME_push(ca_sk
,xn
))
1553 SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST
,ERR_R_MALLOC_FAILURE
);
1567 /* we should setup a certificate to return.... */
1568 s
->s3
->tmp
.cert_req
=1;
1569 s
->s3
->tmp
.ctype_num
=ctype_num
;
1570 if (s
->s3
->tmp
.ca_names
!= NULL
)
1571 sk_X509_NAME_pop_free(s
->s3
->tmp
.ca_names
,X509_NAME_free
);
1572 s
->s3
->tmp
.ca_names
=ca_sk
;
1577 if (ca_sk
!= NULL
) sk_X509_NAME_pop_free(ca_sk
,X509_NAME_free
);
1581 static int ca_dn_cmp(const X509_NAME
* const *a
, const X509_NAME
* const *b
)
1583 return(X509_NAME_cmp(*a
,*b
));
1586 int ssl3_get_server_done(SSL
*s
)
1591 n
=s
->method
->ssl_get_message(s
,
1592 SSL3_ST_CR_SRVR_DONE_A
,
1593 SSL3_ST_CR_SRVR_DONE_B
,
1594 SSL3_MT_SERVER_DONE
,
1595 30, /* should be very small, like 0 :-) */
1598 if (!ok
) return((int)n
);
1601 /* should contain no data */
1602 ssl3_send_alert(s
,SSL3_AL_FATAL
,SSL_AD_DECODE_ERROR
);
1603 SSLerr(SSL_F_SSL3_GET_SERVER_DONE
,SSL_R_LENGTH_MISMATCH
);
1611 static const int KDF1_SHA1_len
= 20;
1612 static void *KDF1_SHA1(const void *in
, size_t inlen
, void *out
, size_t *outlen
)
1614 #ifndef OPENSSL_NO_SHA
1615 if (*outlen
< SHA_DIGEST_LENGTH
)
1618 *outlen
= SHA_DIGEST_LENGTH
;
1619 return SHA1(in
, inlen
, out
);
1625 int ssl3_send_client_key_exchange(SSL
*s
)
1627 unsigned char *p
,*d
;
1630 #ifndef OPENSSL_NO_RSA
1632 EVP_PKEY
*pkey
=NULL
;
1634 #ifndef OPENSSL_NO_KRB5
1636 #endif /* OPENSSL_NO_KRB5 */
1637 #ifndef OPENSSL_NO_ECDH
1638 EC_KEY
*clnt_ecdh
= NULL
;
1639 const EC_POINT
*srvr_ecpoint
= NULL
;
1640 EVP_PKEY
*srvr_pub_pkey
= NULL
;
1641 unsigned char *encodedPoint
= NULL
;
1642 int encoded_pt_len
= 0;
1643 BN_CTX
* bn_ctx
= NULL
;
1646 if (s
->state
== SSL3_ST_CW_KEY_EXCH_A
)
1648 d
=(unsigned char *)s
->init_buf
->data
;
1651 l
=s
->s3
->tmp
.new_cipher
->algorithms
;
1653 /* Fool emacs indentation */
1655 #ifndef OPENSSL_NO_RSA
1656 else if (l
& SSL_kRSA
)
1659 unsigned char tmp_buf
[SSL_MAX_MASTER_KEY_LENGTH
];
1661 if (s
->session
->sess_cert
->peer_rsa_tmp
!= NULL
)
1662 rsa
=s
->session
->sess_cert
->peer_rsa_tmp
;
1665 pkey
=X509_get_pubkey(s
->session
->sess_cert
->peer_pkeys
[SSL_PKEY_RSA_ENC
].x509
);
1666 if ((pkey
== NULL
) ||
1667 (pkey
->type
!= EVP_PKEY_RSA
) ||
1668 (pkey
->pkey
.rsa
== NULL
))
1670 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE
,ERR_R_INTERNAL_ERROR
);
1674 EVP_PKEY_free(pkey
);
1677 tmp_buf
[0]=s
->client_version
>>8;
1678 tmp_buf
[1]=s
->client_version
&0xff;
1679 if (RAND_bytes(&(tmp_buf
[2]),sizeof tmp_buf
-2) <= 0)
1682 s
->session
->master_key_length
=sizeof tmp_buf
;
1685 /* Fix buf for TLS and beyond */
1686 if (s
->version
> SSL3_VERSION
)
1688 n
=RSA_public_encrypt(sizeof tmp_buf
,
1689 tmp_buf
,p
,rsa
,RSA_PKCS1_PADDING
);
1691 if (s
->options
& SSL_OP_PKCS1_CHECK_1
) p
[1]++;
1692 if (s
->options
& SSL_OP_PKCS1_CHECK_2
) tmp_buf
[0]=0x70;
1696 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE
,SSL_R_BAD_RSA_ENCRYPT
);
1700 /* Fix buf for TLS and beyond */
1701 if (s
->version
> SSL3_VERSION
)
1707 s
->session
->master_key_length
=
1708 s
->method
->ssl3_enc
->generate_master_secret(s
,
1709 s
->session
->master_key
,
1710 tmp_buf
,sizeof tmp_buf
);
1711 OPENSSL_cleanse(tmp_buf
,sizeof tmp_buf
);
1714 #ifndef OPENSSL_NO_KRB5
1715 else if (l
& SSL_kKRB5
)
1717 krb5_error_code krb5rc
;
1718 KSSL_CTX
*kssl_ctx
= s
->kssl_ctx
;
1719 /* krb5_data krb5_ap_req; */
1720 krb5_data
*enc_ticket
;
1721 krb5_data authenticator
, *authp
= NULL
;
1722 EVP_CIPHER_CTX ciph_ctx
;
1723 EVP_CIPHER
*enc
= NULL
;
1724 unsigned char iv
[EVP_MAX_IV_LENGTH
];
1725 unsigned char tmp_buf
[SSL_MAX_MASTER_KEY_LENGTH
];
1726 unsigned char epms
[SSL_MAX_MASTER_KEY_LENGTH
1727 + EVP_MAX_IV_LENGTH
];
1728 int padl
, outl
= sizeof(epms
);
1730 EVP_CIPHER_CTX_init(&ciph_ctx
);
1733 printf("ssl3_send_client_key_exchange(%lx & %lx)\n",
1735 #endif /* KSSL_DEBUG */
1739 if (KRB5SENDAUTH
) authp
= &authenticator
;
1740 #endif /* KRB5SENDAUTH */
1742 krb5rc
= kssl_cget_tkt(kssl_ctx
, &enc_ticket
, authp
,
1744 enc
= kssl_map_enc(kssl_ctx
->enctype
);
1749 printf("kssl_cget_tkt rtn %d\n", krb5rc
);
1750 if (krb5rc
&& kssl_err
.text
)
1751 printf("kssl_cget_tkt kssl_err=%s\n", kssl_err
.text
);
1753 #endif /* KSSL_DEBUG */
1757 ssl3_send_alert(s
,SSL3_AL_FATAL
,
1758 SSL_AD_HANDSHAKE_FAILURE
);
1759 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE
,
1764 /* 20010406 VRS - Earlier versions used KRB5 AP_REQ
1765 ** in place of RFC 2712 KerberosWrapper, as in:
1767 ** Send ticket (copy to *p, set n = length)
1768 ** n = krb5_ap_req.length;
1769 ** memcpy(p, krb5_ap_req.data, krb5_ap_req.length);
1770 ** if (krb5_ap_req.data)
1771 ** kssl_krb5_free_data_contents(NULL,&krb5_ap_req);
1773 ** Now using real RFC 2712 KerberosWrapper
1774 ** (Thanks to Simon Wilkinson <sxw@sxw.org.uk>)
1775 ** Note: 2712 "opaque" types are here replaced
1776 ** with a 2-byte length followed by the value.
1778 ** KerberosWrapper= xx xx asn1ticket 0 0 xx xx encpms
1779 ** Where "xx xx" = length bytes. Shown here with
1780 ** optional authenticator omitted.
1783 /* KerberosWrapper.Ticket */
1784 s2n(enc_ticket
->length
,p
);
1785 memcpy(p
, enc_ticket
->data
, enc_ticket
->length
);
1786 p
+= enc_ticket
->length
;
1787 n
= enc_ticket
->length
+ 2;
1789 /* KerberosWrapper.Authenticator */
1790 if (authp
&& authp
->length
)
1792 s2n(authp
->length
,p
);
1793 memcpy(p
, authp
->data
, authp
->length
);
1795 n
+= authp
->length
+ 2;
1803 s2n(0,p
);/* null authenticator length */
1807 if (RAND_bytes(tmp_buf
,sizeof tmp_buf
) <= 0)
1810 /* 20010420 VRS. Tried it this way; failed.
1811 ** EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,NULL);
1812 ** EVP_CIPHER_CTX_set_key_length(&ciph_ctx,
1813 ** kssl_ctx->length);
1814 ** EVP_EncryptInit_ex(&ciph_ctx,NULL, key,iv);
1817 memset(iv
, 0, sizeof iv
); /* per RFC 1510 */
1818 EVP_EncryptInit_ex(&ciph_ctx
,enc
, NULL
,
1820 EVP_EncryptUpdate(&ciph_ctx
,epms
,&outl
,tmp_buf
,
1822 EVP_EncryptFinal_ex(&ciph_ctx
,&(epms
[outl
]),&padl
);
1824 if (outl
> sizeof epms
)
1826 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE
, ERR_R_INTERNAL_ERROR
);
1829 EVP_CIPHER_CTX_cleanup(&ciph_ctx
);
1831 /* KerberosWrapper.EncryptedPreMasterSecret */
1833 memcpy(p
, epms
, outl
);
1837 s
->session
->master_key_length
=
1838 s
->method
->ssl3_enc
->generate_master_secret(s
,
1839 s
->session
->master_key
,
1840 tmp_buf
, sizeof tmp_buf
);
1842 OPENSSL_cleanse(tmp_buf
, sizeof tmp_buf
);
1843 OPENSSL_cleanse(epms
, outl
);
1846 #ifndef OPENSSL_NO_DH
1847 else if (l
& (SSL_kEDH
|SSL_kDHr
|SSL_kDHd
))
1849 DH
*dh_srvr
,*dh_clnt
;
1851 if (s
->session
->sess_cert
->peer_dh_tmp
!= NULL
)
1852 dh_srvr
=s
->session
->sess_cert
->peer_dh_tmp
;
1855 /* we get them from the cert */
1856 ssl3_send_alert(s
,SSL3_AL_FATAL
,SSL_AD_HANDSHAKE_FAILURE
);
1857 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE
,SSL_R_UNABLE_TO_FIND_DH_PARAMETERS
);
1861 /* generate a new random key */
1862 if ((dh_clnt
=DHparams_dup(dh_srvr
)) == NULL
)
1864 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE
,ERR_R_DH_LIB
);
1867 if (!DH_generate_key(dh_clnt
))
1869 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE
,ERR_R_DH_LIB
);
1873 /* use the 'p' output buffer for the DH key, but
1874 * make sure to clear it out afterwards */
1876 n
=DH_compute_key(p
,dh_srvr
->pub_key
,dh_clnt
);
1880 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE
,ERR_R_DH_LIB
);
1884 /* generate master key from the result */
1885 s
->session
->master_key_length
=
1886 s
->method
->ssl3_enc
->generate_master_secret(s
,
1887 s
->session
->master_key
,p
,n
);
1891 /* send off the data */
1892 n
=BN_num_bytes(dh_clnt
->pub_key
);
1894 BN_bn2bin(dh_clnt
->pub_key
,p
);
1899 /* perhaps clean things up a bit EAY EAY EAY EAY*/
1903 #ifndef OPENSSL_NO_ECDH
1904 else if ((l
& SSL_kECDH
) || (l
& SSL_kECDHE
))
1906 const EC_GROUP
*srvr_group
= NULL
;
1908 int ecdh_clnt_cert
= 0;
1911 /* Did we send out the client's
1912 * ECDH share for use in premaster
1913 * computation as part of client certificate?
1914 * If so, set ecdh_clnt_cert to 1.
1916 if ((l
& SSL_kECDH
) && (s
->cert
!= NULL
))
1918 /* XXX: For now, we do not support client
1919 * authentication using ECDH certificates.
1920 * To add such support, one needs to add
1921 * code that checks for appropriate
1922 * conditions and sets ecdh_clnt_cert to 1.
1923 * For example, the cert have an ECC
1924 * key on the same curve as the server's
1925 * and the key should be authorized for
1928 * One also needs to add code in ssl3_connect
1929 * to skip sending the certificate verify
1932 * if ((s->cert->key->privatekey != NULL) &&
1933 * (s->cert->key->privatekey->type ==
1934 * EVP_PKEY_EC) && ...)
1935 * ecdh_clnt_cert = 1;
1939 if (s
->session
->sess_cert
->peer_ecdh_tmp
!= NULL
)
1941 tkey
= s
->session
->sess_cert
->peer_ecdh_tmp
;
1945 /* Get the Server Public Key from Cert */
1946 srvr_pub_pkey
= X509_get_pubkey(s
->session
-> \
1947 sess_cert
->peer_pkeys
[SSL_PKEY_ECC
].x509
);
1948 if ((srvr_pub_pkey
== NULL
) ||
1949 (srvr_pub_pkey
->type
!= EVP_PKEY_EC
) ||
1950 (srvr_pub_pkey
->pkey
.ec
== NULL
))
1952 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE
,
1953 ERR_R_INTERNAL_ERROR
);
1957 tkey
= srvr_pub_pkey
->pkey
.ec
;
1960 srvr_group
= EC_KEY_get0_group(tkey
);
1961 srvr_ecpoint
= EC_KEY_get0_public_key(tkey
);
1963 if ((srvr_group
== NULL
) || (srvr_ecpoint
== NULL
))
1965 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE
,
1966 ERR_R_INTERNAL_ERROR
);
1970 if ((clnt_ecdh
=EC_KEY_new()) == NULL
)
1972 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE
,ERR_R_MALLOC_FAILURE
);
1976 if (!EC_KEY_set_group(clnt_ecdh
, srvr_group
))
1978 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE
,ERR_R_EC_LIB
);
1983 /* Reuse key info from our certificate
1984 * We only need our private key to perform
1985 * the ECDH computation.
1987 const BIGNUM
*priv_key
;
1988 tkey
= s
->cert
->key
->privatekey
->pkey
.ec
;
1989 priv_key
= EC_KEY_get0_private_key(tkey
);
1990 if (priv_key
== NULL
)
1992 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE
,ERR_R_MALLOC_FAILURE
);
1995 if (!EC_KEY_set_private_key(clnt_ecdh
, priv_key
))
1997 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE
,ERR_R_EC_LIB
);
2003 /* Generate a new ECDH key pair */
2004 if (!(EC_KEY_generate_key(clnt_ecdh
)))
2006 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE
, ERR_R_ECDH_LIB
);
2011 /* use the 'p' output buffer for the ECDH key, but
2012 * make sure to clear it out afterwards
2015 field_size
= EC_GROUP_get_degree(srvr_group
);
2016 if (field_size
<= 0)
2018 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE
,
2022 /* If field size is not more than 24 octets, then use SHA-1 hash of result;
2023 * otherwise, use result (see section 4.8 of draft-ietf-tls-ecc-03.txt;
2024 * this is new with this version of the Internet Draft).
2026 if (field_size
<= 24 * 8)
2027 n
=ECDH_compute_key(p
, KDF1_SHA1_len
, srvr_ecpoint
, clnt_ecdh
, KDF1_SHA1
);
2029 n
=ECDH_compute_key(p
, (field_size
+7)/8, srvr_ecpoint
, clnt_ecdh
, NULL
);
2032 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE
,
2037 /* generate master key from the result */
2038 s
->session
->master_key_length
= s
->method
->ssl3_enc \
2039 -> generate_master_secret(s
,
2040 s
->session
->master_key
,
2043 memset(p
, 0, n
); /* clean up */
2047 /* Send empty client key exch message */
2052 /* First check the size of encoding and
2053 * allocate memory accordingly.
2056 EC_POINT_point2oct(srvr_group
,
2057 EC_KEY_get0_public_key(clnt_ecdh
),
2058 POINT_CONVERSION_UNCOMPRESSED
,
2061 encodedPoint
= (unsigned char *)
2062 OPENSSL_malloc(encoded_pt_len
*
2063 sizeof(unsigned char));
2064 bn_ctx
= BN_CTX_new();
2065 if ((encodedPoint
== NULL
) ||
2068 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE
,ERR_R_MALLOC_FAILURE
);
2072 /* Encode the public key */
2073 n
= EC_POINT_point2oct(srvr_group
,
2074 EC_KEY_get0_public_key(clnt_ecdh
),
2075 POINT_CONVERSION_UNCOMPRESSED
,
2076 encodedPoint
, encoded_pt_len
, bn_ctx
);
2078 *p
= n
; /* length of encoded point */
2079 /* Encoded point will be copied here */
2081 /* copy the point */
2082 memcpy((unsigned char *)p
, encodedPoint
, n
);
2083 /* increment n to account for length field */
2087 /* Free allocated memory */
2088 BN_CTX_free(bn_ctx
);
2089 if (encodedPoint
!= NULL
) OPENSSL_free(encodedPoint
);
2090 if (clnt_ecdh
!= NULL
)
2091 EC_KEY_free(clnt_ecdh
);
2092 EVP_PKEY_free(srvr_pub_pkey
);
2094 #endif /* !OPENSSL_NO_ECDH */
2097 ssl3_send_alert(s
, SSL3_AL_FATAL
,
2098 SSL_AD_HANDSHAKE_FAILURE
);
2099 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE
,
2100 ERR_R_INTERNAL_ERROR
);
2104 *(d
++)=SSL3_MT_CLIENT_KEY_EXCHANGE
;
2107 s
->state
=SSL3_ST_CW_KEY_EXCH_B
;
2108 /* number of bytes to write */
2113 /* SSL3_ST_CW_KEY_EXCH_B */
2114 return(ssl3_do_write(s
,SSL3_RT_HANDSHAKE
));
2116 #ifndef OPENSSL_NO_ECDH
2117 BN_CTX_free(bn_ctx
);
2118 if (encodedPoint
!= NULL
) OPENSSL_free(encodedPoint
);
2119 if (clnt_ecdh
!= NULL
)
2120 EC_KEY_free(clnt_ecdh
);
2121 EVP_PKEY_free(srvr_pub_pkey
);
2126 int ssl3_send_client_verify(SSL
*s
)
2128 unsigned char *p
,*d
;
2129 unsigned char data
[MD5_DIGEST_LENGTH
+SHA_DIGEST_LENGTH
];
2131 #ifndef OPENSSL_NO_RSA
2135 #ifndef OPENSSL_NO_DSA
2139 if (s
->state
== SSL3_ST_CW_CERT_VRFY_A
)
2141 d
=(unsigned char *)s
->init_buf
->data
;
2143 pkey
=s
->cert
->key
->privatekey
;
2145 s
->method
->ssl3_enc
->cert_verify_mac(s
,&(s
->s3
->finish_dgst2
),
2146 &(data
[MD5_DIGEST_LENGTH
]));
2148 #ifndef OPENSSL_NO_RSA
2149 if (pkey
->type
== EVP_PKEY_RSA
)
2151 s
->method
->ssl3_enc
->cert_verify_mac(s
,
2152 &(s
->s3
->finish_dgst1
),&(data
[0]));
2153 if (RSA_sign(NID_md5_sha1
, data
,
2154 MD5_DIGEST_LENGTH
+SHA_DIGEST_LENGTH
,
2155 &(p
[2]), &u
, pkey
->pkey
.rsa
) <= 0 )
2157 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY
,ERR_R_RSA_LIB
);
2165 #ifndef OPENSSL_NO_DSA
2166 if (pkey
->type
== EVP_PKEY_DSA
)
2168 if (!DSA_sign(pkey
->save_type
,
2169 &(data
[MD5_DIGEST_LENGTH
]),
2170 SHA_DIGEST_LENGTH
,&(p
[2]),
2171 (unsigned int *)&j
,pkey
->pkey
.dsa
))
2173 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY
,ERR_R_DSA_LIB
);
2181 #ifndef OPENSSL_NO_ECDSA
2182 if (pkey
->type
== EVP_PKEY_EC
)
2184 if (!ECDSA_sign(pkey
->save_type
,
2185 &(data
[MD5_DIGEST_LENGTH
]),
2186 SHA_DIGEST_LENGTH
,&(p
[2]),
2187 (unsigned int *)&j
,pkey
->pkey
.ec
))
2189 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY
,
2199 SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY
,ERR_R_INTERNAL_ERROR
);
2202 *(d
++)=SSL3_MT_CERTIFICATE_VERIFY
;
2205 s
->state
=SSL3_ST_CW_CERT_VRFY_B
;
2206 s
->init_num
=(int)n
+4;
2209 return(ssl3_do_write(s
,SSL3_RT_HANDSHAKE
));
2214 int ssl3_send_client_certificate(SSL
*s
)
2217 EVP_PKEY
*pkey
=NULL
;
2221 if (s
->state
== SSL3_ST_CW_CERT_A
)
2223 if ((s
->cert
== NULL
) ||
2224 (s
->cert
->key
->x509
== NULL
) ||
2225 (s
->cert
->key
->privatekey
== NULL
))
2226 s
->state
=SSL3_ST_CW_CERT_B
;
2228 s
->state
=SSL3_ST_CW_CERT_C
;
2231 /* We need to get a client cert */
2232 if (s
->state
== SSL3_ST_CW_CERT_B
)
2234 /* If we get an error, we need to
2235 * ssl->rwstate=SSL_X509_LOOKUP; return(-1);
2236 * We then get retied later */
2238 if (s
->ctx
->client_cert_cb
!= NULL
)
2239 i
=s
->ctx
->client_cert_cb(s
,&(x509
),&(pkey
));
2242 s
->rwstate
=SSL_X509_LOOKUP
;
2245 s
->rwstate
=SSL_NOTHING
;
2246 if ((i
== 1) && (pkey
!= NULL
) && (x509
!= NULL
))
2248 s
->state
=SSL3_ST_CW_CERT_B
;
2249 if ( !SSL_use_certificate(s
,x509
) ||
2250 !SSL_use_PrivateKey(s
,pkey
))
2256 SSLerr(SSL_F_SSL3_SEND_CLIENT_CERTIFICATE
,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK
);
2259 if (x509
!= NULL
) X509_free(x509
);
2260 if (pkey
!= NULL
) EVP_PKEY_free(pkey
);
2263 if (s
->version
== SSL3_VERSION
)
2265 s
->s3
->tmp
.cert_req
=0;
2266 ssl3_send_alert(s
,SSL3_AL_WARNING
,SSL_AD_NO_CERTIFICATE
);
2271 s
->s3
->tmp
.cert_req
=2;
2275 /* Ok, we have a cert */
2276 s
->state
=SSL3_ST_CW_CERT_C
;
2279 if (s
->state
== SSL3_ST_CW_CERT_C
)
2281 s
->state
=SSL3_ST_CW_CERT_D
;
2282 l
=ssl3_output_cert_chain(s
,
2283 (s
->s3
->tmp
.cert_req
== 2)?NULL
:s
->cert
->key
->x509
);
2287 /* SSL3_ST_CW_CERT_D */
2288 return(ssl3_do_write(s
,SSL3_RT_HANDSHAKE
));
2291 #define has_bits(i,m) (((i)&(m)) == (m))
2293 int ssl3_check_cert_and_algorithm(SSL
*s
)
2297 EVP_PKEY
*pkey
=NULL
;
2299 #ifndef OPENSSL_NO_RSA
2302 #ifndef OPENSSL_NO_DH
2306 sc
=s
->session
->sess_cert
;
2310 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM
,ERR_R_INTERNAL_ERROR
);
2314 algs
=s
->s3
->tmp
.new_cipher
->algorithms
;
2316 /* we don't have a certificate */
2317 if (algs
& (SSL_aDH
|SSL_aNULL
|SSL_aKRB5
))
2320 #ifndef OPENSSL_NO_RSA
2321 rsa
=s
->session
->sess_cert
->peer_rsa_tmp
;
2323 #ifndef OPENSSL_NO_DH
2324 dh
=s
->session
->sess_cert
->peer_dh_tmp
;
2327 /* This is the passed certificate */
2329 idx
=sc
->peer_cert_type
;
2330 #ifndef OPENSSL_NO_ECDH
2331 if (idx
== SSL_PKEY_ECC
)
2333 if (check_srvr_ecc_cert_and_alg(sc
->peer_pkeys
[idx
].x509
,
2334 s
->s3
->tmp
.new_cipher
) == 0)
2335 { /* check failed */
2336 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM
,SSL_R_BAD_ECC_CERT
);
2345 pkey
=X509_get_pubkey(sc
->peer_pkeys
[idx
].x509
);
2346 i
=X509_certificate_type(sc
->peer_pkeys
[idx
].x509
,pkey
);
2347 EVP_PKEY_free(pkey
);
2350 /* Check that we have a certificate if we require one */
2351 if ((algs
& SSL_aRSA
) && !has_bits(i
,EVP_PK_RSA
|EVP_PKT_SIGN
))
2353 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM
,SSL_R_MISSING_RSA_SIGNING_CERT
);
2356 #ifndef OPENSSL_NO_DSA
2357 else if ((algs
& SSL_aDSS
) && !has_bits(i
,EVP_PK_DSA
|EVP_PKT_SIGN
))
2359 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM
,SSL_R_MISSING_DSA_SIGNING_CERT
);
2363 #ifndef OPENSSL_NO_RSA
2364 if ((algs
& SSL_kRSA
) &&
2365 !(has_bits(i
,EVP_PK_RSA
|EVP_PKT_ENC
) || (rsa
!= NULL
)))
2367 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM
,SSL_R_MISSING_RSA_ENCRYPTING_CERT
);
2371 #ifndef OPENSSL_NO_DH
2372 if ((algs
& SSL_kEDH
) &&
2373 !(has_bits(i
,EVP_PK_DH
|EVP_PKT_EXCH
) || (dh
!= NULL
)))
2375 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM
,SSL_R_MISSING_DH_KEY
);
2378 else if ((algs
& SSL_kDHr
) && !has_bits(i
,EVP_PK_DH
|EVP_PKS_RSA
))
2380 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM
,SSL_R_MISSING_DH_RSA_CERT
);
2383 #ifndef OPENSSL_NO_DSA
2384 else if ((algs
& SSL_kDHd
) && !has_bits(i
,EVP_PK_DH
|EVP_PKS_DSA
))
2386 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM
,SSL_R_MISSING_DH_DSA_CERT
);
2392 if (SSL_C_IS_EXPORT(s
->s3
->tmp
.new_cipher
) && !has_bits(i
,EVP_PKT_EXP
))
2394 #ifndef OPENSSL_NO_RSA
2395 if (algs
& SSL_kRSA
)
2398 || RSA_size(rsa
)*8 > SSL_C_EXPORT_PKEYLENGTH(s
->s3
->tmp
.new_cipher
))
2400 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM
,SSL_R_MISSING_EXPORT_TMP_RSA_KEY
);
2406 #ifndef OPENSSL_NO_DH
2407 if (algs
& (SSL_kEDH
|SSL_kDHr
|SSL_kDHd
))
2410 || DH_size(dh
)*8 > SSL_C_EXPORT_PKEYLENGTH(s
->s3
->tmp
.new_cipher
))
2412 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM
,SSL_R_MISSING_EXPORT_TMP_DH_KEY
);
2419 SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM
,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE
);
2425 ssl3_send_alert(s
,SSL3_AL_FATAL
,SSL_AD_HANDSHAKE_FAILURE
);
2431 #ifndef OPENSSL_NO_ECDH
2432 /* This is the complement of nid2curve_id in s3_srvr.c. */
2433 static int curve_id2nid(int curve_id
)
2435 /* ECC curves from draft-ietf-tls-ecc-01.txt (Mar 15, 2001)
2436 * (no changes in draft-ietf-tls-ecc-03.txt [June 2003]) */
2437 static int nid_list
[26] =
2440 NID_sect163k1
, /* sect163k1 (1) */
2441 NID_sect163r1
, /* sect163r1 (2) */
2442 NID_sect163r2
, /* sect163r2 (3) */
2443 NID_sect193r1
, /* sect193r1 (4) */
2444 NID_sect193r2
, /* sect193r2 (5) */
2445 NID_sect233k1
, /* sect233k1 (6) */
2446 NID_sect233r1
, /* sect233r1 (7) */
2447 NID_sect239k1
, /* sect239k1 (8) */
2448 NID_sect283k1
, /* sect283k1 (9) */
2449 NID_sect283r1
, /* sect283r1 (10) */
2450 NID_sect409k1
, /* sect409k1 (11) */
2451 NID_sect409r1
, /* sect409r1 (12) */
2452 NID_sect571k1
, /* sect571k1 (13) */
2453 NID_sect571r1
, /* sect571r1 (14) */
2454 NID_secp160k1
, /* secp160k1 (15) */
2455 NID_secp160r1
, /* secp160r1 (16) */
2456 NID_secp160r2
, /* secp160r2 (17) */
2457 NID_secp192k1
, /* secp192k1 (18) */
2458 NID_X9_62_prime192v1
, /* secp192r1 (19) */
2459 NID_secp224k1
, /* secp224k1 (20) */
2460 NID_secp224r1
, /* secp224r1 (21) */
2461 NID_secp256k1
, /* secp256k1 (22) */
2462 NID_X9_62_prime256v1
, /* secp256r1 (23) */
2463 NID_secp384r1
, /* secp384r1 (24) */
2464 NID_secp521r1
/* secp521r1 (25) */
2467 if ((curve_id
< 1) || (curve_id
> 25)) return 0;
2469 return nid_list
[curve_id
];