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.]
61 #include <openssl/rand.h>
62 #include <openssl/buffer.h>
63 #include <openssl/objects.h>
65 #include <openssl/evp.h>
67 static SSL_METHOD
*ssl2_get_client_method(int ver
);
68 static int get_server_finished(SSL
*s
);
69 static int get_server_verify(SSL
*s
);
70 static int get_server_hello(SSL
*s
);
71 static int client_hello(SSL
*s
);
72 static int client_master_key(SSL
*s
);
73 static int client_finished(SSL
*s
);
74 static int client_certificate(SSL
*s
);
75 static int ssl_rsa_public_encrypt(CERT
*c
, int len
, unsigned char *from
,
76 unsigned char *to
,int padding
);
79 static SSL_METHOD
*ssl2_get_client_method(int ver
)
81 if (ver
== SSL2_VERSION
)
82 return(SSLv2_client_method());
87 SSL_METHOD
*SSLv2_client_method(void)
90 static SSL_METHOD SSLv2_client_data
;
94 memcpy((char *)&SSLv2_client_data
,(char *)sslv2_base_method(),
96 SSLv2_client_data
.ssl_connect
=ssl2_connect
;
97 SSLv2_client_data
.get_ssl_method
=ssl2_get_client_method
;
100 return(&SSLv2_client_data
);
103 int ssl2_connect(SSL
*s
)
105 unsigned long l
=time(NULL
);
111 RAND_seed(&l
,sizeof(l
));
115 if (s
->info_callback
!= NULL
)
117 else if (s
->ctx
->info_callback
!= NULL
)
118 cb
=s
->ctx
->info_callback
;
120 /* init things to blank */
121 if (!SSL_in_init(s
) || SSL_in_before(s
)) SSL_clear(s
);
132 case SSL_ST_BEFORE
|SSL_ST_CONNECT
:
133 case SSL_ST_OK
|SSL_ST_CONNECT
:
136 if (cb
!= NULL
) cb(s
,SSL_CB_HANDSHAKE_START
,1);
138 s
->version
=SSL2_VERSION
;
139 s
->type
=SSL_ST_CONNECT
;
142 if ((buf
== NULL
) && ((buf
=BUF_MEM_new()) == NULL
))
147 if (!BUF_MEM_grow(buf
,
148 SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER
))
155 s
->state
=SSL2_ST_SEND_CLIENT_HELLO_A
;
156 s
->ctx
->stats
.sess_connect
++;
157 s
->handshake_func
=ssl2_connect
;
160 case SSL2_ST_SEND_CLIENT_HELLO_A
:
161 case SSL2_ST_SEND_CLIENT_HELLO_B
:
164 if (ret
<= 0) goto end
;
166 s
->state
=SSL2_ST_GET_SERVER_HELLO_A
;
169 case SSL2_ST_GET_SERVER_HELLO_A
:
170 case SSL2_ST_GET_SERVER_HELLO_B
:
171 ret
=get_server_hello(s
);
172 if (ret
<= 0) goto end
;
174 if (!s
->hit
) /* new session */
176 s
->state
=SSL2_ST_SEND_CLIENT_MASTER_KEY_A
;
181 s
->state
=SSL2_ST_CLIENT_START_ENCRYPTION
;
185 case SSL2_ST_SEND_CLIENT_MASTER_KEY_A
:
186 case SSL2_ST_SEND_CLIENT_MASTER_KEY_B
:
187 ret
=client_master_key(s
);
188 if (ret
<= 0) goto end
;
190 s
->state
=SSL2_ST_CLIENT_START_ENCRYPTION
;
193 case SSL2_ST_CLIENT_START_ENCRYPTION
:
194 /* Ok, we now have all the stuff needed to
195 * start encrypting, so lets fire it up :-) */
196 if (!ssl2_enc_init(s
,1))
202 s
->state
=SSL2_ST_SEND_CLIENT_FINISHED_A
;
205 case SSL2_ST_SEND_CLIENT_FINISHED_A
:
206 case SSL2_ST_SEND_CLIENT_FINISHED_B
:
207 ret
=client_finished(s
);
208 if (ret
<= 0) goto end
;
210 s
->state
=SSL2_ST_GET_SERVER_VERIFY_A
;
213 case SSL2_ST_GET_SERVER_VERIFY_A
:
214 case SSL2_ST_GET_SERVER_VERIFY_B
:
215 ret
=get_server_verify(s
);
216 if (ret
<= 0) goto end
;
218 s
->state
=SSL2_ST_GET_SERVER_FINISHED_A
;
221 case SSL2_ST_GET_SERVER_FINISHED_A
:
222 case SSL2_ST_GET_SERVER_FINISHED_B
:
223 ret
=get_server_finished(s
);
224 if (ret
<= 0) goto end
;
227 case SSL2_ST_SEND_CLIENT_CERTIFICATE_A
:
228 case SSL2_ST_SEND_CLIENT_CERTIFICATE_B
:
229 case SSL2_ST_SEND_CLIENT_CERTIFICATE_C
:
230 case SSL2_ST_SEND_CLIENT_CERTIFICATE_D
:
231 case SSL2_ST_X509_GET_CLIENT_CERTIFICATE
:
232 ret
=client_certificate(s
);
233 if (ret
<= 0) goto end
;
235 s
->state
=SSL2_ST_GET_SERVER_FINISHED_A
;
239 if (s
->init_buf
!= NULL
)
241 BUF_MEM_free(s
->init_buf
);
245 /* ERR_clear_error();*/
247 /* If we want to cache session-ids in the client
248 * and we sucessfully add the session-id to the
249 * cache, and there is a callback, then pass it out.
250 * 26/11/96 - eay - only add if not a re-used session.
253 ssl_update_cache(s
,SSL_SESS_CACHE_CLIENT
);
254 if (s
->hit
) s
->ctx
->stats
.sess_hit
++;
258 s
->ctx
->stats
.sess_connect_good
++;
260 if (cb
!= NULL
) cb(s
,SSL_CB_HANDSHAKE_DONE
,1);
265 SSLerr(SSL_F_SSL2_CONNECT
,SSL_R_UNKNOWN_STATE
);
270 if ((cb
!= NULL
) && (s
->state
!= state
))
274 cb(s
,SSL_CB_CONNECT_LOOP
,1);
281 cb(s
,SSL_CB_CONNECT_EXIT
,ret
);
285 static int get_server_hello(SSL
*s
)
290 STACK_OF(SSL_CIPHER
) *sk
=NULL
,*cl
;
292 buf
=(unsigned char *)s
->init_buf
->data
;
294 if (s
->state
== SSL2_ST_GET_SERVER_HELLO_A
)
296 i
=ssl2_read(s
,(char *)&(buf
[s
->init_num
]),11-s
->init_num
);
297 if (i
< (11-s
->init_num
))
298 return(ssl2_part_read(s
,SSL_F_GET_SERVER_HELLO
,i
));
300 if (*(p
++) != SSL2_MT_SERVER_HELLO
)
302 if (p
[-1] != SSL2_MT_ERROR
)
304 ssl2_return_error(s
,SSL2_PE_UNDEFINED_ERROR
);
305 SSLerr(SSL_F_GET_SERVER_HELLO
,
306 SSL_R_READ_WRONG_PACKET_TYPE
);
309 SSLerr(SSL_F_GET_SERVER_HELLO
,
314 s
->s2
->tmp
.cert_type
= *(p
++);
316 if (i
< s
->version
) s
->version
=i
;
317 n2s(p
,i
); s
->s2
->tmp
.cert_length
=i
;
318 n2s(p
,i
); s
->s2
->tmp
.csl
=i
;
319 n2s(p
,i
); s
->s2
->tmp
.conn_id_length
=i
;
320 s
->state
=SSL2_ST_GET_SERVER_HELLO_B
;
324 /* SSL2_ST_GET_SERVER_HELLO_B */
325 j
=s
->s2
->tmp
.cert_length
+s
->s2
->tmp
.csl
+s
->s2
->tmp
.conn_id_length
327 i
=ssl2_read(s
,(char *)&(buf
[s
->init_num
]),j
);
328 if (i
!= j
) return(ssl2_part_read(s
,SSL_F_GET_SERVER_HELLO
,i
));
330 /* things are looking good */
335 if (s
->s2
->tmp
.cert_length
!= 0)
337 SSLerr(SSL_F_GET_SERVER_HELLO
,SSL_R_REUSE_CERT_LENGTH_NOT_ZERO
);
340 if (s
->s2
->tmp
.cert_type
!= 0)
343 SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG
))
345 SSLerr(SSL_F_GET_SERVER_HELLO
,SSL_R_REUSE_CERT_TYPE_NOT_ZERO
);
349 if (s
->s2
->tmp
.csl
!= 0)
351 SSLerr(SSL_F_GET_SERVER_HELLO
,SSL_R_REUSE_CIPHER_LIST_NOT_ZERO
);
359 memset(s
->session
->session_id
,0,
360 SSL_MAX_SSL_SESSION_ID_LENGTH_IN_BYTES
);
361 s
->session
->session_id_length
=0;
365 /* we need to do this incase we were trying to reuse a
366 * client session but others are already reusing it.
367 * If this was a new 'blank' session ID, the session-id
368 * length will still be 0 */
369 if (s
->session
->session_id_length
> 0)
371 if (!ssl_get_new_session(s
,0))
373 ssl2_return_error(s
,SSL2_PE_UNDEFINED_ERROR
);
378 if (ssl2_set_certificate(s
,s
->s2
->tmp
.cert_type
,
379 s
->s2
->tmp
.cert_length
,p
) <= 0)
381 ssl2_return_error(s
,SSL2_PE_BAD_CERTIFICATE
);
384 p
+=s
->s2
->tmp
.cert_length
;
386 if (s
->s2
->tmp
.csl
== 0)
388 ssl2_return_error(s
,SSL2_PE_NO_CIPHER
);
389 SSLerr(SSL_F_GET_SERVER_HELLO
,SSL_R_NO_CIPHER_LIST
);
393 /* We have just received a list of ciphers back from the
394 * server. We need to get the ones that match, then select
395 * the one we want the most :-). */
397 /* load the ciphers */
398 sk
=ssl_bytes_to_cipher_list(s
,p
,s
->s2
->tmp
.csl
,
399 &s
->session
->ciphers
);
403 ssl2_return_error(s
,SSL2_PE_UNDEFINED_ERROR
);
404 SSLerr(SSL_F_GET_SERVER_HELLO
,ERR_R_MALLOC_FAILURE
);
408 sk_SSL_CIPHER_set_cmp_func(sk
,ssl_cipher_ptr_id_cmp
);
410 /* get the array of ciphers we will accept */
411 cl
=ssl_get_ciphers_by_id(s
);
413 /* In theory we could have ciphers sent back that we
414 * don't want to use but that does not matter since we
415 * will check against the list we origionally sent and
416 * for performance reasons we should not bother to match
417 * the two lists up just to check. */
418 for (i
=0; i
<sk_SSL_CIPHER_num(cl
); i
++)
420 if (sk_SSL_CIPHER_find(sk
,
421 sk_SSL_CIPHER_value(cl
,i
)) >= 0)
425 if (i
>= sk_SSL_CIPHER_num(cl
))
427 ssl2_return_error(s
,SSL2_PE_NO_CIPHER
);
428 SSLerr(SSL_F_GET_SERVER_HELLO
,SSL_R_NO_CIPHER_MATCH
);
431 s
->session
->cipher
=sk_SSL_CIPHER_value(cl
,i
);
434 if ((s
->session
!= NULL
) && (s
->session
->peer
!= NULL
))
435 X509_free(s
->session
->peer
);
437 /* hmmm, can we have the problem of the other session with this
438 * cert, Free's it before we increment the reference count. */
439 CRYPTO_w_lock(CRYPTO_LOCK_X509
);
440 s
->session
->peer
=s
->session
->cert
->key
->x509
;
441 /* Shouldn't do this: already locked */
442 /*CRYPTO_add(&s->session->peer->references,1,CRYPTO_LOCK_X509);*/
443 s
->session
->peer
->references
++;
444 CRYPTO_w_unlock(CRYPTO_LOCK_X509
);
446 s
->s2
->conn_id_length
=s
->s2
->tmp
.conn_id_length
;
447 memcpy(s
->s2
->conn_id
,p
,s
->s2
->tmp
.conn_id_length
);
451 static int client_hello(SSL
*s
)
455 /* CIPHER **cipher;*/
458 buf
=(unsigned char *)s
->init_buf
->data
;
459 if (s
->state
== SSL2_ST_SEND_CLIENT_HELLO_A
)
461 if ((s
->session
== NULL
) ||
462 (s
->session
->ssl_version
!= s
->version
))
464 if (!ssl_get_new_session(s
,0))
466 ssl2_return_error(s
,SSL2_PE_UNDEFINED_ERROR
);
470 /* else use the pre-loaded session */
473 d
=p
+9; /* data section */
474 *(p
++)=SSL2_MT_CLIENT_HELLO
; /* type */
475 s2n(SSL2_VERSION
,p
); /* version */
478 n
=ssl_cipher_list_to_bytes(s
,SSL_get_ciphers(s
),d
);
483 SSLerr(SSL_F_CLIENT_HELLO
,SSL_R_NO_CIPHERS_AVAILABLE
);
487 s2n(n
,p
); /* cipher spec num bytes */
489 if ((s
->session
->session_id_length
> 0) &&
490 (s
->session
->session_id_length
<=
491 SSL2_MAX_SSL_SESSION_ID_LENGTH
))
493 i
=s
->session
->session_id_length
;
494 s2n(i
,p
); /* session id length */
495 memcpy(d
,s
->session
->session_id
,(unsigned int)i
);
503 s
->s2
->challenge_length
=SSL2_CHALLENGE_LENGTH
;
504 s2n(SSL2_CHALLENGE_LENGTH
,p
); /* challenge length */
505 /*challenge id data*/
506 RAND_bytes(s
->s2
->challenge
,SSL2_CHALLENGE_LENGTH
);
507 memcpy(d
,s
->s2
->challenge
,SSL2_CHALLENGE_LENGTH
);
508 d
+=SSL2_CHALLENGE_LENGTH
;
510 s
->state
=SSL2_ST_SEND_CLIENT_HELLO_B
;
514 /* SSL2_ST_SEND_CLIENT_HELLO_B */
515 return(ssl2_do_write(s
));
518 static int client_master_key(SSL
*s
)
522 int clear
,enc
,karg
,i
;
527 buf
=(unsigned char *)s
->init_buf
->data
;
528 if (s
->state
== SSL2_ST_SEND_CLIENT_MASTER_KEY_A
)
531 if (!ssl_cipher_get_evp(s
->session
,&c
,&md
,NULL
))
533 ssl2_return_error(s
,SSL2_PE_NO_CIPHER
);
534 SSLerr(SSL_F_CLIENT_MASTER_KEY
,SSL_R_PROBLEMS_MAPPING_CIPHER_FUNCTIONS
);
540 *(p
++)=SSL2_MT_CLIENT_MASTER_KEY
;/* type */
542 i
=ssl_put_cipher_by_char(s
,sess
->cipher
,p
);
545 /* make key_arg data */
546 i
=EVP_CIPHER_iv_length(c
);
547 sess
->key_arg_length
=i
;
548 if (i
> 0) RAND_bytes(sess
->key_arg
,i
);
550 /* make a master key */
551 i
=EVP_CIPHER_key_length(c
);
552 sess
->master_key_length
=i
;
553 if (i
> 0) RAND_bytes(sess
->master_key
,i
);
555 if (sess
->cipher
->algorithm2
& SSL2_CF_8_BYTE_ENC
)
557 else if (SSL_C_IS_EXPORT(sess
->cipher
))
564 ssl2_return_error(s
,SSL2_PE_UNDEFINED_ERROR
);
565 SSLerr(SSL_F_CLIENT_MASTER_KEY
,SSL_R_CIPHER_TABLE_SRC_ERROR
);
570 memcpy(d
,sess
->master_key
,(unsigned int)clear
);
573 enc
=ssl_rsa_public_encrypt(sess
->cert
,enc
,
574 &(sess
->master_key
[clear
]),d
,
575 (s
->s2
->ssl2_rollback
)?RSA_SSLV23_PADDING
:RSA_PKCS1_PADDING
);
578 ssl2_return_error(s
,SSL2_PE_UNDEFINED_ERROR
);
579 SSLerr(SSL_F_CLIENT_MASTER_KEY
,SSL_R_PUBLIC_KEY_ENCRYPT_ERROR
);
583 if (s
->options
& SSL_OP_PKCS1_CHECK_1
) d
[1]++;
584 if (s
->options
& SSL_OP_PKCS1_CHECK_2
)
585 sess
->master_key
[clear
]++;
589 karg
=sess
->key_arg_length
;
590 s2n(karg
,p
); /* key arg size */
591 memcpy(d
,sess
->key_arg
,(unsigned int)karg
);
594 s
->state
=SSL2_ST_SEND_CLIENT_MASTER_KEY_B
;
599 /* SSL2_ST_SEND_CLIENT_MASTER_KEY_B */
600 return(ssl2_do_write(s
));
603 static int client_finished(SSL
*s
)
607 if (s
->state
== SSL2_ST_SEND_CLIENT_FINISHED_A
)
609 p
=(unsigned char *)s
->init_buf
->data
;
610 *(p
++)=SSL2_MT_CLIENT_FINISHED
;
611 memcpy(p
,s
->s2
->conn_id
,(unsigned int)s
->s2
->conn_id_length
);
613 s
->state
=SSL2_ST_SEND_CLIENT_FINISHED_B
;
614 s
->init_num
=s
->s2
->conn_id_length
+1;
617 return(ssl2_do_write(s
));
620 /* read the data and then respond */
621 static int client_certificate(SSL
*s
)
628 unsigned char *cert_ch
;
630 buf
=(unsigned char *)s
->init_buf
->data
;
633 /* We have a cert associated with the SSL, so attach it to
634 * the session if it does not have one */
636 if (s
->state
== SSL2_ST_SEND_CLIENT_CERTIFICATE_A
)
638 i
=ssl2_read(s
,(char *)&(buf
[s
->init_num
]),
639 SSL2_MAX_CERT_CHALLENGE_LENGTH
+1-s
->init_num
);
640 if (i
<(SSL2_MIN_CERT_CHALLENGE_LENGTH
+1-s
->init_num
))
641 return(ssl2_part_read(s
,SSL_F_CLIENT_CERTIFICATE
,i
));
645 if (buf
[1] != SSL2_AT_MD5_WITH_RSA_ENCRYPTION
)
647 ssl2_return_error(s
,SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE
);
648 SSLerr(SSL_F_CLIENT_CERTIFICATE
,SSL_R_BAD_AUTHENTICATION_TYPE
);
653 if ((s
->cert
== NULL
) ||
654 (s
->cert
->key
->x509
== NULL
) ||
655 (s
->cert
->key
->privatekey
== NULL
))
657 s
->state
=SSL2_ST_X509_GET_CLIENT_CERTIFICATE
;
660 s
->state
=SSL2_ST_SEND_CLIENT_CERTIFICATE_C
;
663 if (s
->state
== SSL2_ST_X509_GET_CLIENT_CERTIFICATE
)
668 /* If we get an error we need to
669 * ssl->rwstate=SSL_X509_LOOKUP;
671 * We should then be retried when things are ok and we
672 * can get a cert or not */
675 if (s
->ctx
->client_cert_cb
!= NULL
)
677 i
=s
->ctx
->client_cert_cb(s
,&(x509
),&(pkey
));
682 s
->rwstate
=SSL_X509_LOOKUP
;
685 s
->rwstate
=SSL_NOTHING
;
687 if ((i
== 1) && (pkey
!= NULL
) && (x509
!= NULL
))
689 s
->state
=SSL2_ST_SEND_CLIENT_CERTIFICATE_C
;
690 if ( !SSL_use_certificate(s
,x509
) ||
691 !SSL_use_PrivateKey(s
,pkey
))
700 if (x509
!= NULL
) X509_free(x509
);
701 if (pkey
!= NULL
) EVP_PKEY_free(pkey
);
702 SSLerr(SSL_F_CLIENT_CERTIFICATE
,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK
);
708 /* We have no client certificate to respond with
709 * so send the correct error message back */
710 s
->state
=SSL2_ST_SEND_CLIENT_CERTIFICATE_B
;
712 *(p
++)=SSL2_MT_ERROR
;
713 s2n(SSL2_PE_NO_CERTIFICATE
,p
);
716 /* Write is done at the end */
720 if (s
->state
== SSL2_ST_SEND_CLIENT_CERTIFICATE_B
)
722 return(ssl2_do_write(s
));
725 if (s
->state
== SSL2_ST_SEND_CLIENT_CERTIFICATE_C
)
729 /* ok, now we calculate the checksum
730 * do it first so we can reuse buf :-) */
732 EVP_SignInit(&ctx
,s
->ctx
->rsa_md5
);
733 EVP_SignUpdate(&ctx
,s
->s2
->key_material
,
734 (unsigned int)s
->s2
->key_material_length
);
735 EVP_SignUpdate(&ctx
,cert_ch
,(unsigned int)cert_ch_len
);
736 n
=i2d_X509(s
->session
->cert
->key
->x509
,&p
);
737 EVP_SignUpdate(&ctx
,buf
,(unsigned int)n
);
741 *(p
++)=SSL2_MT_CLIENT_CERTIFICATE
;
742 *(p
++)=SSL2_CT_X509_CERTIFICATE
;
743 n
=i2d_X509(s
->cert
->key
->x509
,&d
);
746 if (!EVP_SignFinal(&ctx
,d
,&n
,s
->cert
->key
->privatekey
))
748 /* this is not good. If things have failed it
749 * means there so something wrong with the key.
750 * We will contiune with a 0 length signature
753 memset(&ctx
,0,sizeof(ctx
));
757 s
->state
=SSL2_ST_SEND_CLIENT_CERTIFICATE_D
;
761 /* if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_D) */
762 return(ssl2_do_write(s
));
765 static int get_server_verify(SSL
*s
)
770 p
=(unsigned char *)s
->init_buf
->data
;
771 if (s
->state
== SSL2_ST_GET_SERVER_VERIFY_A
)
773 i
=ssl2_read(s
,(char *)&(p
[s
->init_num
]),1-s
->init_num
);
774 if (i
< (1-s
->init_num
))
775 return(ssl2_part_read(s
,SSL_F_GET_SERVER_VERIFY
,i
));
777 s
->state
= SSL2_ST_GET_SERVER_VERIFY_B
;
779 if (*p
!= SSL2_MT_SERVER_VERIFY
)
781 if (p
[0] != SSL2_MT_ERROR
)
783 ssl2_return_error(s
,SSL2_PE_UNDEFINED_ERROR
);
784 SSLerr(SSL_F_GET_SERVER_VERIFY
,
785 SSL_R_READ_WRONG_PACKET_TYPE
);
788 SSLerr(SSL_F_GET_SERVER_VERIFY
,
794 p
=(unsigned char *)s
->init_buf
->data
;
795 i
=ssl2_read(s
,(char *)&(p
[s
->init_num
]),
796 (unsigned int)s
->s2
->challenge_length
-s
->init_num
);
797 if (i
< ((int)s
->s2
->challenge_length
-s
->init_num
))
798 return(ssl2_part_read(s
,SSL_F_GET_SERVER_VERIFY
,i
));
799 if (memcmp(p
,s
->s2
->challenge
,(unsigned int)s
->s2
->challenge_length
) != 0)
801 ssl2_return_error(s
,SSL2_PE_UNDEFINED_ERROR
);
802 SSLerr(SSL_F_GET_SERVER_VERIFY
,SSL_R_CHALLENGE_IS_DIFFERENT
);
808 static int get_server_finished(SSL
*s
)
814 buf
=(unsigned char *)s
->init_buf
->data
;
816 if (s
->state
== SSL2_ST_GET_SERVER_FINISHED_A
)
818 i
=ssl2_read(s
,(char *)&(buf
[s
->init_num
]),1-s
->init_num
);
819 if (i
< (1-s
->init_num
))
820 return(ssl2_part_read(s
,SSL_F_GET_SERVER_FINISHED
,i
));
822 if (*p
== SSL2_MT_REQUEST_CERTIFICATE
)
824 s
->state
=SSL2_ST_SEND_CLIENT_CERTIFICATE_A
;
827 else if (*p
!= SSL2_MT_SERVER_FINISHED
)
829 if (p
[0] != SSL2_MT_ERROR
)
831 ssl2_return_error(s
,SSL2_PE_UNDEFINED_ERROR
);
832 SSLerr(SSL_F_GET_SERVER_FINISHED
,SSL_R_READ_WRONG_PACKET_TYPE
);
835 SSLerr(SSL_F_GET_SERVER_FINISHED
,SSL_R_PEER_ERROR
);
842 i
=ssl2_read(s
,(char *)&(buf
[s
->init_num
]),
843 SSL2_SSL_SESSION_ID_LENGTH
-s
->init_num
);
844 if (i
< (SSL2_SSL_SESSION_ID_LENGTH
-s
->init_num
))
845 return(ssl2_part_read(s
,SSL_F_GET_SERVER_FINISHED
,i
));
847 if (!s
->hit
) /* new session */
850 /* Make sure we were not trying to re-use an old SSL_SESSION
851 * or bad things can happen */
853 s
->session
->session_id_length
=SSL2_SSL_SESSION_ID_LENGTH
;
854 memcpy(s
->session
->session_id
,p
,SSL2_SSL_SESSION_ID_LENGTH
);
858 if (!(s
->options
& SSL_OP_MICROSOFT_SESS_ID_BUG
))
860 if (memcmp(buf
,s
->session
->session_id
,
861 (unsigned int)s
->session
->session_id_length
) != 0)
863 ssl2_return_error(s
,SSL2_PE_UNDEFINED_ERROR
);
864 SSLerr(SSL_F_GET_SERVER_FINISHED
,SSL_R_SSL_SESSION_ID_IS_DIFFERENT
);
872 /* loads in the certificate from the server */
873 int ssl2_set_certificate(SSL
*s
, int type
, int len
, unsigned char *data
)
875 STACK_OF(X509
) *sk
=NULL
;
882 x509
=d2i_X509(NULL
,&data
,(long)len
);
885 SSLerr(SSL_F_SSL2_SET_CERTIFICATE
,ERR_R_X509_LIB
);
889 if ((sk
=sk_X509_new_null()) == NULL
|| !sk_X509_push(sk
,x509
))
891 SSLerr(SSL_F_SSL2_SET_CERTIFICATE
,ERR_R_MALLOC_FAILURE
);
895 i
=ssl_verify_cert_chain(s
,sk
);
897 if ((s
->verify_mode
!= SSL_VERIFY_NONE
) && (!i
))
899 SSLerr(SSL_F_SSL2_SET_CERTIFICATE
,SSL_R_CERTIFICATE_VERIFY_FAILED
);
911 /* cert for session */
912 if (s
->session
->cert
) ssl_cert_free(s
->session
->cert
);
915 /* c->cert_type=type; */
917 c
->pkeys
[SSL_PKEY_RSA_ENC
].x509
=x509
;
918 c
->key
= &(c
->pkeys
[SSL_PKEY_RSA_ENC
]);
920 pkey
=X509_get_pubkey(x509
);
924 SSLerr(SSL_F_SSL2_SET_CERTIFICATE
,SSL_R_UNABLE_TO_EXTRACT_PUBLIC_KEY
);
927 if (pkey
->type
!= EVP_PKEY_RSA
)
929 SSLerr(SSL_F_SSL2_SET_CERTIFICATE
,SSL_R_PUBLIC_KEY_NOT_RSA
);
933 if (!ssl_set_cert_type(c
,SSL2_CT_X509_CERTIFICATE
))
943 static int ssl_rsa_public_encrypt(CERT
*c
, int len
, unsigned char *from
,
944 unsigned char *to
, int padding
)
949 if ((c
== NULL
) || (c
->key
->x509
== NULL
) ||
950 ((pkey
=X509_get_pubkey(c
->key
->x509
)) == NULL
))
952 SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT
,SSL_R_NO_PUBLICKEY
);
955 if (pkey
->type
!= EVP_PKEY_RSA
)
957 SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT
,SSL_R_PUBLIC_KEY_IS_NOT_RSA
);
961 /* we have the public key */
962 i
=RSA_public_encrypt(len
,from
,to
,pkey
->pkey
.rsa
,padding
);
964 SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT
,ERR_R_RSA_LIB
);