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) 1998-2007 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 2005 Nokia. All rights reserved.
114 * The portions of the attached software ("Contribution") is developed by
115 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
118 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
119 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
120 * support (see RFC 4279) to OpenSSL.
122 * No patent licenses or other rights except those expressly stated in
123 * the OpenSSL open source license shall be deemed granted or received
124 * expressly, by implication, estoppel, or otherwise.
126 * No assurances are provided by Nokia that the Contribution does not
127 * infringe the patent or other intellectual property rights of any third
128 * party or that the license provides you with all the necessary rights
129 * to make use of the Contribution.
131 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
132 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
133 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
134 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
139 #include "ssl_locl.h"
140 #include <openssl/evp.h>
141 #include <openssl/md5.h>
143 static unsigned char ssl3_pad_1[48]={
144 0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36,
145 0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36,
146 0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36,
147 0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36,
148 0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36,
149 0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36 };
151 static unsigned char ssl3_pad_2[48]={
152 0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,
153 0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,
154 0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,
155 0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,
156 0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,
157 0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c };
159 static int ssl3_handshake_mac(SSL *s, EVP_MD_CTX *in_ctx,
160 const char *sender, int len, unsigned char *p);
162 static int ssl3_generate_key_block(SSL *s, unsigned char *km, int num)
166 unsigned char buf[16],smd[SHA_DIGEST_LENGTH];
170 #ifdef CHARSET_EBCDIC
171 c = os_toascii[c]; /*'A' in ASCII */
174 EVP_MD_CTX_init(&m5);
175 EVP_MD_CTX_init(&s1);
176 for (i=0; (int)i<num; i+=MD5_DIGEST_LENGTH)
181 /* bug: 'buf' is too small for this ciphersuite */
182 SSLerr(SSL_F_SSL3_GENERATE_KEY_BLOCK, ERR_R_INTERNAL_ERROR);
189 EVP_DigestInit_ex(&s1,EVP_sha1(), NULL);
190 EVP_DigestUpdate(&s1,buf,k);
191 EVP_DigestUpdate(&s1,s->session->master_key,
192 s->session->master_key_length);
193 EVP_DigestUpdate(&s1,s->s3->server_random,SSL3_RANDOM_SIZE);
194 EVP_DigestUpdate(&s1,s->s3->client_random,SSL3_RANDOM_SIZE);
195 EVP_DigestFinal_ex(&s1,smd,NULL);
197 EVP_DigestInit_ex(&m5,EVP_md5(), NULL);
198 EVP_DigestUpdate(&m5,s->session->master_key,
199 s->session->master_key_length);
200 EVP_DigestUpdate(&m5,smd,SHA_DIGEST_LENGTH);
201 if ((int)(i+MD5_DIGEST_LENGTH) > num)
203 EVP_DigestFinal_ex(&m5,smd,NULL);
204 memcpy(km,smd,(num-i));
207 EVP_DigestFinal_ex(&m5,km,NULL);
209 km+=MD5_DIGEST_LENGTH;
211 OPENSSL_cleanse(smd,SHA_DIGEST_LENGTH);
212 EVP_MD_CTX_cleanup(&m5);
213 EVP_MD_CTX_cleanup(&s1);
217 int ssl3_change_cipher_state(SSL *s, int which)
219 unsigned char *p,*key_block,*mac_secret;
220 unsigned char exp_key[EVP_MAX_KEY_LENGTH];
221 unsigned char exp_iv[EVP_MAX_IV_LENGTH];
222 unsigned char *ms,*key,*iv,*er1,*er2;
225 #ifndef OPENSSL_NO_COMP
230 int is_exp,n,i,j,k,cl;
233 is_exp=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
234 c=s->s3->tmp.new_sym_enc;
235 m=s->s3->tmp.new_hash;
236 #ifndef OPENSSL_NO_COMP
237 if (s->s3->tmp.new_compression == NULL)
240 comp=s->s3->tmp.new_compression->method;
242 key_block=s->s3->tmp.key_block;
244 if (which & SSL3_CC_READ)
246 if (s->enc_read_ctx != NULL)
248 else if ((s->enc_read_ctx=OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL)
251 /* make sure it's intialized in case we exit later with an error */
252 EVP_CIPHER_CTX_init(s->enc_read_ctx);
255 #ifndef OPENSSL_NO_COMP
257 if (s->expand != NULL)
259 COMP_CTX_free(s->expand);
264 s->expand=COMP_CTX_new(comp);
265 if (s->expand == NULL)
267 SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE,SSL_R_COMPRESSION_LIBRARY_ERROR);
270 if (s->s3->rrec.comp == NULL)
271 s->s3->rrec.comp=(unsigned char *)
272 OPENSSL_malloc(SSL3_RT_MAX_PLAIN_LENGTH);
273 if (s->s3->rrec.comp == NULL)
277 memset(&(s->s3->read_sequence[0]),0,8);
278 mac_secret= &(s->s3->read_mac_secret[0]);
282 if (s->enc_write_ctx != NULL)
284 else if ((s->enc_write_ctx=OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL)
287 /* make sure it's intialized in case we exit later with an error */
288 EVP_CIPHER_CTX_init(s->enc_write_ctx);
289 dd= s->enc_write_ctx;
291 #ifndef OPENSSL_NO_COMP
293 if (s->compress != NULL)
295 COMP_CTX_free(s->compress);
300 s->compress=COMP_CTX_new(comp);
301 if (s->compress == NULL)
303 SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE,SSL_R_COMPRESSION_LIBRARY_ERROR);
308 memset(&(s->s3->write_sequence[0]),0,8);
309 mac_secret= &(s->s3->write_mac_secret[0]);
313 EVP_CIPHER_CTX_cleanup(dd);
315 p=s->s3->tmp.key_block;
317 cl=EVP_CIPHER_key_length(c);
318 j=is_exp ? (cl < SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher) ?
319 cl : SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher)) : cl;
320 /* Was j=(is_exp)?5:EVP_CIPHER_key_length(c); */
321 k=EVP_CIPHER_iv_length(c);
322 if ( (which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) ||
323 (which == SSL3_CHANGE_CIPHER_SERVER_READ))
326 key= &(p[ n]); n+=j+j;
327 iv= &(p[ n]); n+=k+k;
328 er1= &(s->s3->client_random[0]);
329 er2= &(s->s3->server_random[0]);
334 ms= &(p[ n]); n+=i+j;
335 key= &(p[ n]); n+=j+k;
337 er1= &(s->s3->server_random[0]);
338 er2= &(s->s3->client_random[0]);
341 if (n > s->s3->tmp.key_block_length)
343 SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE,ERR_R_INTERNAL_ERROR);
347 EVP_MD_CTX_init(&md);
348 memcpy(mac_secret,ms,i);
351 /* In here I set both the read and write key/iv to the
352 * same value since only the correct one will be used :-).
354 EVP_DigestInit_ex(&md,EVP_md5(), NULL);
355 EVP_DigestUpdate(&md,key,j);
356 EVP_DigestUpdate(&md,er1,SSL3_RANDOM_SIZE);
357 EVP_DigestUpdate(&md,er2,SSL3_RANDOM_SIZE);
358 EVP_DigestFinal_ex(&md,&(exp_key[0]),NULL);
363 EVP_DigestInit_ex(&md,EVP_md5(), NULL);
364 EVP_DigestUpdate(&md,er1,SSL3_RANDOM_SIZE);
365 EVP_DigestUpdate(&md,er2,SSL3_RANDOM_SIZE);
366 EVP_DigestFinal_ex(&md,&(exp_iv[0]),NULL);
371 s->session->key_arg_length=0;
373 EVP_CipherInit_ex(dd,c,NULL,key,iv,(which & SSL3_CC_WRITE));
375 OPENSSL_cleanse(&(exp_key[0]),sizeof(exp_key));
376 OPENSSL_cleanse(&(exp_iv[0]),sizeof(exp_iv));
377 EVP_MD_CTX_cleanup(&md);
380 SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE,ERR_R_MALLOC_FAILURE);
385 int ssl3_setup_key_block(SSL *s)
394 if (s->s3->tmp.key_block_length != 0)
397 if (!ssl_cipher_get_evp(s->session,&c,&hash,&comp))
399 SSLerr(SSL_F_SSL3_SETUP_KEY_BLOCK,SSL_R_CIPHER_OR_HASH_UNAVAILABLE);
403 s->s3->tmp.new_sym_enc=c;
404 s->s3->tmp.new_hash=hash;
405 #ifdef OPENSSL_NO_COMP
406 s->s3->tmp.new_compression=NULL;
408 s->s3->tmp.new_compression=comp;
411 num=EVP_CIPHER_key_length(c)+EVP_MD_size(hash)+EVP_CIPHER_iv_length(c);
414 ssl3_cleanup_key_block(s);
416 if ((p=OPENSSL_malloc(num)) == NULL)
419 s->s3->tmp.key_block_length=num;
420 s->s3->tmp.key_block=p;
422 ret = ssl3_generate_key_block(s,p,num);
424 if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS))
426 /* enable vulnerability countermeasure for CBC ciphers with
427 * known-IV problem (http://www.openssl.org/~bodo/tls-cbc.txt)
429 s->s3->need_empty_fragments = 1;
431 if (s->session->cipher != NULL)
433 if (s->session->cipher->algorithm_enc == SSL_eNULL)
434 s->s3->need_empty_fragments = 0;
436 #ifndef OPENSSL_NO_RC4
437 if (s->session->cipher->algorithm_enc == SSL_RC4)
438 s->s3->need_empty_fragments = 0;
446 SSLerr(SSL_F_SSL3_SETUP_KEY_BLOCK,ERR_R_MALLOC_FAILURE);
450 void ssl3_cleanup_key_block(SSL *s)
452 if (s->s3->tmp.key_block != NULL)
454 OPENSSL_cleanse(s->s3->tmp.key_block,
455 s->s3->tmp.key_block_length);
456 OPENSSL_free(s->s3->tmp.key_block);
457 s->s3->tmp.key_block=NULL;
459 s->s3->tmp.key_block_length=0;
462 int ssl3_enc(SSL *s, int send)
468 const EVP_CIPHER *enc;
474 if (s->enc_write_ctx == NULL)
477 enc=EVP_CIPHER_CTX_cipher(s->enc_write_ctx);
483 if (s->enc_read_ctx == NULL)
486 enc=EVP_CIPHER_CTX_cipher(s->enc_read_ctx);
489 if ((s->session == NULL) || (ds == NULL) ||
492 memmove(rec->data,rec->input,rec->length);
493 rec->input=rec->data;
498 bs=EVP_CIPHER_block_size(ds->cipher);
502 if ((bs != 1) && send)
506 /* we need to add 'i-1' padding bytes */
509 rec->input[l-1]=(i-1);
514 if (l == 0 || l%bs != 0)
516 SSLerr(SSL_F_SSL3_ENC,SSL_R_BLOCK_CIPHER_PAD_IS_WRONG);
517 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECRYPTION_FAILED);
520 /* otherwise, rec->length >= bs */
523 EVP_Cipher(ds,rec->data,rec->input,l);
525 if ((bs != 1) && !send)
528 /* SSL 3.0 bounds the number of padding bytes by the block size;
529 * padding bytes (except the last one) are arbitrary */
532 /* Incorrect padding. SSLerr() and ssl3_alert are done
533 * by caller: we don't want to reveal whether this is
534 * a decryption error or a MAC verification failure
535 * (see http://www.openssl.org/~bodo/tls-cbc.txt) */
538 /* now i <= bs <= rec->length */
545 void ssl3_init_finished_mac(SSL *s)
547 EVP_DigestInit_ex(&(s->s3->finish_dgst1),s->ctx->md5, NULL);
548 EVP_DigestInit_ex(&(s->s3->finish_dgst2),s->ctx->sha1, NULL);
551 void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len)
553 EVP_DigestUpdate(&(s->s3->finish_dgst1),buf,len);
554 EVP_DigestUpdate(&(s->s3->finish_dgst2),buf,len);
557 int ssl3_cert_verify_mac(SSL *s, EVP_MD_CTX *ctx, unsigned char *p)
559 return(ssl3_handshake_mac(s,ctx,NULL,0,p));
562 int ssl3_final_finish_mac(SSL *s, EVP_MD_CTX *ctx1, EVP_MD_CTX *ctx2,
563 const char *sender, int len, unsigned char *p)
567 ret=ssl3_handshake_mac(s,ctx1,sender,len,p);
569 ret+=ssl3_handshake_mac(s,ctx2,sender,len,p);
573 static int ssl3_handshake_mac(SSL *s, EVP_MD_CTX *in_ctx,
574 const char *sender, int len, unsigned char *p)
579 unsigned char md_buf[EVP_MAX_MD_SIZE];
582 EVP_MD_CTX_init(&ctx);
583 EVP_MD_CTX_copy_ex(&ctx,in_ctx);
585 n=EVP_MD_CTX_size(&ctx);
589 EVP_DigestUpdate(&ctx,sender,len);
590 EVP_DigestUpdate(&ctx,s->session->master_key,
591 s->session->master_key_length);
592 EVP_DigestUpdate(&ctx,ssl3_pad_1,npad);
593 EVP_DigestFinal_ex(&ctx,md_buf,&i);
595 EVP_DigestInit_ex(&ctx,EVP_MD_CTX_md(&ctx), NULL);
596 EVP_DigestUpdate(&ctx,s->session->master_key,
597 s->session->master_key_length);
598 EVP_DigestUpdate(&ctx,ssl3_pad_2,npad);
599 EVP_DigestUpdate(&ctx,md_buf,i);
600 EVP_DigestFinal_ex(&ctx,p,&ret);
602 EVP_MD_CTX_cleanup(&ctx);
607 int ssl3_mac(SSL *ssl, unsigned char *md, int send)
610 unsigned char *mac_sec,*seq;
613 unsigned char *p,rec_char;
614 unsigned int md_size;
619 rec= &(ssl->s3->wrec);
620 mac_sec= &(ssl->s3->write_mac_secret[0]);
621 seq= &(ssl->s3->write_sequence[0]);
622 hash=ssl->write_hash;
626 rec= &(ssl->s3->rrec);
627 mac_sec= &(ssl->s3->read_mac_secret[0]);
628 seq= &(ssl->s3->read_sequence[0]);
632 md_size=EVP_MD_size(hash);
633 npad=(48/md_size)*md_size;
635 /* Chop the digest off the end :-) */
636 EVP_MD_CTX_init(&md_ctx);
638 EVP_DigestInit_ex( &md_ctx,hash, NULL);
639 EVP_DigestUpdate(&md_ctx,mac_sec,md_size);
640 EVP_DigestUpdate(&md_ctx,ssl3_pad_1,npad);
641 EVP_DigestUpdate(&md_ctx,seq,8);
643 EVP_DigestUpdate(&md_ctx,&rec_char,1);
646 EVP_DigestUpdate(&md_ctx,md,2);
647 EVP_DigestUpdate(&md_ctx,rec->input,rec->length);
648 EVP_DigestFinal_ex( &md_ctx,md,NULL);
650 EVP_DigestInit_ex( &md_ctx,hash, NULL);
651 EVP_DigestUpdate(&md_ctx,mac_sec,md_size);
652 EVP_DigestUpdate(&md_ctx,ssl3_pad_2,npad);
653 EVP_DigestUpdate(&md_ctx,md,md_size);
654 EVP_DigestFinal_ex( &md_ctx,md,&md_size);
656 EVP_MD_CTX_cleanup(&md_ctx);
658 ssl3_record_sequence_update(seq);
662 void ssl3_record_sequence_update(unsigned char *seq)
669 if (seq[i] != 0) break;
673 int ssl3_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,
676 static const unsigned char *salt[3]={
677 #ifndef CHARSET_EBCDIC
678 (const unsigned char *)"A",
679 (const unsigned char *)"BB",
680 (const unsigned char *)"CCC",
682 (const unsigned char *)"\x41",
683 (const unsigned char *)"\x42\x42",
684 (const unsigned char *)"\x43\x43\x43",
687 unsigned char buf[EVP_MAX_MD_SIZE];
692 EVP_MD_CTX_init(&ctx);
695 EVP_DigestInit_ex(&ctx,s->ctx->sha1, NULL);
696 EVP_DigestUpdate(&ctx,salt[i],strlen((const char *)salt[i]));
697 EVP_DigestUpdate(&ctx,p,len);
698 EVP_DigestUpdate(&ctx,&(s->s3->client_random[0]),
700 EVP_DigestUpdate(&ctx,&(s->s3->server_random[0]),
702 EVP_DigestFinal_ex(&ctx,buf,&n);
704 EVP_DigestInit_ex(&ctx,s->ctx->md5, NULL);
705 EVP_DigestUpdate(&ctx,p,len);
706 EVP_DigestUpdate(&ctx,buf,n);
707 EVP_DigestFinal_ex(&ctx,out,&n);
711 EVP_MD_CTX_cleanup(&ctx);
715 int ssl3_alert_code(int code)
719 case SSL_AD_CLOSE_NOTIFY: return(SSL3_AD_CLOSE_NOTIFY);
720 case SSL_AD_UNEXPECTED_MESSAGE: return(SSL3_AD_UNEXPECTED_MESSAGE);
721 case SSL_AD_BAD_RECORD_MAC: return(SSL3_AD_BAD_RECORD_MAC);
722 case SSL_AD_DECRYPTION_FAILED: return(SSL3_AD_BAD_RECORD_MAC);
723 case SSL_AD_RECORD_OVERFLOW: return(SSL3_AD_BAD_RECORD_MAC);
724 case SSL_AD_DECOMPRESSION_FAILURE:return(SSL3_AD_DECOMPRESSION_FAILURE);
725 case SSL_AD_HANDSHAKE_FAILURE: return(SSL3_AD_HANDSHAKE_FAILURE);
726 case SSL_AD_NO_CERTIFICATE: return(SSL3_AD_NO_CERTIFICATE);
727 case SSL_AD_BAD_CERTIFICATE: return(SSL3_AD_BAD_CERTIFICATE);
728 case SSL_AD_UNSUPPORTED_CERTIFICATE:return(SSL3_AD_UNSUPPORTED_CERTIFICATE);
729 case SSL_AD_CERTIFICATE_REVOKED:return(SSL3_AD_CERTIFICATE_REVOKED);
730 case SSL_AD_CERTIFICATE_EXPIRED:return(SSL3_AD_CERTIFICATE_EXPIRED);
731 case SSL_AD_CERTIFICATE_UNKNOWN:return(SSL3_AD_CERTIFICATE_UNKNOWN);
732 case SSL_AD_ILLEGAL_PARAMETER: return(SSL3_AD_ILLEGAL_PARAMETER);
733 case SSL_AD_UNKNOWN_CA: return(SSL3_AD_BAD_CERTIFICATE);
734 case SSL_AD_ACCESS_DENIED: return(SSL3_AD_HANDSHAKE_FAILURE);
735 case SSL_AD_DECODE_ERROR: return(SSL3_AD_HANDSHAKE_FAILURE);
736 case SSL_AD_DECRYPT_ERROR: return(SSL3_AD_HANDSHAKE_FAILURE);
737 case SSL_AD_EXPORT_RESTRICTION: return(SSL3_AD_HANDSHAKE_FAILURE);
738 case SSL_AD_PROTOCOL_VERSION: return(SSL3_AD_HANDSHAKE_FAILURE);
739 case SSL_AD_INSUFFICIENT_SECURITY:return(SSL3_AD_HANDSHAKE_FAILURE);
740 case SSL_AD_INTERNAL_ERROR: return(SSL3_AD_HANDSHAKE_FAILURE);
741 case SSL_AD_USER_CANCELLED: return(SSL3_AD_HANDSHAKE_FAILURE);
742 case SSL_AD_NO_RENEGOTIATION: return(-1); /* Don't send it :-) */
743 case SSL_AD_UNSUPPORTED_EXTENSION: return(SSL3_AD_HANDSHAKE_FAILURE);
744 case SSL_AD_CERTIFICATE_UNOBTAINABLE: return(SSL3_AD_HANDSHAKE_FAILURE);
745 case SSL_AD_UNRECOGNIZED_NAME: return(SSL3_AD_HANDSHAKE_FAILURE);
746 case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE: return(SSL3_AD_HANDSHAKE_FAILURE);
747 case SSL_AD_BAD_CERTIFICATE_HASH_VALUE: return(SSL3_AD_HANDSHAKE_FAILURE);
748 case SSL_AD_UNKNOWN_PSK_IDENTITY:return(TLS1_AD_UNKNOWN_PSK_IDENTITY);