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d02b48c6 | 1 | /* ssl/s3_enc.c */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
3 | * All rights reserved. |
4 | * | |
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. | |
8 | * | |
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). | |
15 | * | |
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. | |
22 | * | |
23 | * Redistribution and use in source and binary forms, with or without | |
24 | * modification, are permitted provided that the following conditions | |
25 | * are met: | |
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)" | |
40 | * | |
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 | |
51 | * SUCH DAMAGE. | |
52 | * | |
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.] | |
57 | */ | |
82b0bf0b | 58 | /* ==================================================================== |
52b8dad8 | 59 | * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. |
82b0bf0b BM |
60 | * |
61 | * Redistribution and use in source and binary forms, with or without | |
62 | * modification, are permitted provided that the following conditions | |
63 | * are met: | |
64 | * | |
65 | * 1. Redistributions of source code must retain the above copyright | |
66 | * notice, this list of conditions and the following disclaimer. | |
67 | * | |
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 | |
71 | * distribution. | |
72 | * | |
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/)" | |
77 | * | |
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. | |
82 | * | |
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. | |
86 | * | |
87 | * 6. Redistributions of any form whatsoever must retain the following | |
88 | * acknowledgment: | |
89 | * "This product includes software developed by the OpenSSL Project | |
90 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | |
91 | * | |
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 | * ==================================================================== | |
105 | * | |
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). | |
109 | * | |
110 | */ | |
ddac1974 NL |
111 | /* ==================================================================== |
112 | * Copyright 2005 Nokia. All rights reserved. | |
113 | * | |
114 | * The portions of the attached software ("Contribution") is developed by | |
115 | * Nokia Corporation and is licensed pursuant to the OpenSSL open source | |
116 | * license. | |
117 | * | |
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. | |
121 | * | |
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. | |
125 | * | |
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. | |
130 | * | |
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 | |
135 | * OTHERWISE. | |
136 | */ | |
d02b48c6 RE |
137 | |
138 | #include <stdio.h> | |
d02b48c6 | 139 | #include "ssl_locl.h" |
7b63c0fa | 140 | #include <openssl/evp.h> |
dbad1690 | 141 | #include <openssl/md5.h> |
d02b48c6 | 142 | |
f756fb43 | 143 | static const unsigned char ssl3_pad_1[48]={ |
d02b48c6 RE |
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 }; | |
150 | ||
f756fb43 | 151 | static const unsigned char ssl3_pad_2[48]={ |
d02b48c6 RE |
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 }; | |
81025661 | 158 | static int ssl3_handshake_mac(SSL *s, int md_nid, |
f2d9a32c | 159 | const char *sender, int len, unsigned char *p); |
027e257b | 160 | static int ssl3_generate_key_block(SSL *s, unsigned char *km, int num) |
58964a49 | 161 | { |
323f289c DSH |
162 | EVP_MD_CTX m5; |
163 | EVP_MD_CTX s1; | |
42748c08 | 164 | unsigned char buf[16],smd[SHA_DIGEST_LENGTH]; |
58964a49 | 165 | unsigned char c='A'; |
27545970 | 166 | unsigned int i,j,k; |
58964a49 | 167 | |
ca570cfd UM |
168 | #ifdef CHARSET_EBCDIC |
169 | c = os_toascii[c]; /*'A' in ASCII */ | |
170 | #endif | |
58964a49 | 171 | k=0; |
dbad1690 | 172 | EVP_MD_CTX_init(&m5); |
086e32a6 | 173 | EVP_MD_CTX_set_flags(&m5, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW); |
dbad1690 | 174 | EVP_MD_CTX_init(&s1); |
27545970 | 175 | for (i=0; (int)i<num; i+=MD5_DIGEST_LENGTH) |
58964a49 RE |
176 | { |
177 | k++; | |
027e257b BM |
178 | if (k > sizeof buf) |
179 | { | |
180 | /* bug: 'buf' is too small for this ciphersuite */ | |
181 | SSLerr(SSL_F_SSL3_GENERATE_KEY_BLOCK, ERR_R_INTERNAL_ERROR); | |
182 | return 0; | |
183 | } | |
184 | ||
58964a49 RE |
185 | for (j=0; j<k; j++) |
186 | buf[j]=c; | |
187 | c++; | |
20d2186c | 188 | EVP_DigestInit_ex(&s1,EVP_sha1(), NULL); |
323f289c DSH |
189 | EVP_DigestUpdate(&s1,buf,k); |
190 | EVP_DigestUpdate(&s1,s->session->master_key, | |
58964a49 | 191 | s->session->master_key_length); |
323f289c DSH |
192 | EVP_DigestUpdate(&s1,s->s3->server_random,SSL3_RANDOM_SIZE); |
193 | EVP_DigestUpdate(&s1,s->s3->client_random,SSL3_RANDOM_SIZE); | |
20d2186c | 194 | EVP_DigestFinal_ex(&s1,smd,NULL); |
58964a49 | 195 | |
20d2186c | 196 | EVP_DigestInit_ex(&m5,EVP_md5(), NULL); |
323f289c | 197 | EVP_DigestUpdate(&m5,s->session->master_key, |
58964a49 | 198 | s->session->master_key_length); |
323f289c | 199 | EVP_DigestUpdate(&m5,smd,SHA_DIGEST_LENGTH); |
27545970 | 200 | if ((int)(i+MD5_DIGEST_LENGTH) > num) |
58964a49 | 201 | { |
20d2186c | 202 | EVP_DigestFinal_ex(&m5,smd,NULL); |
58964a49 RE |
203 | memcpy(km,smd,(num-i)); |
204 | } | |
205 | else | |
20d2186c | 206 | EVP_DigestFinal_ex(&m5,km,NULL); |
58964a49 RE |
207 | |
208 | km+=MD5_DIGEST_LENGTH; | |
209 | } | |
4579924b | 210 | OPENSSL_cleanse(smd,SHA_DIGEST_LENGTH); |
dbad1690 BL |
211 | EVP_MD_CTX_cleanup(&m5); |
212 | EVP_MD_CTX_cleanup(&s1); | |
027e257b | 213 | return 1; |
58964a49 RE |
214 | } |
215 | ||
6b691a5c | 216 | int ssl3_change_cipher_state(SSL *s, int which) |
d02b48c6 | 217 | { |
c8bbd98a | 218 | unsigned char *p,*mac_secret; |
d02b48c6 | 219 | unsigned char exp_key[EVP_MAX_KEY_LENGTH]; |
54a656ef | 220 | unsigned char exp_iv[EVP_MAX_IV_LENGTH]; |
d02b48c6 RE |
221 | unsigned char *ms,*key,*iv,*er1,*er2; |
222 | EVP_CIPHER_CTX *dd; | |
e778802f | 223 | const EVP_CIPHER *c; |
09b6c2ef | 224 | #ifndef OPENSSL_NO_COMP |
dfeab068 | 225 | COMP_METHOD *comp; |
09b6c2ef | 226 | #endif |
e778802f | 227 | const EVP_MD *m; |
323f289c | 228 | EVP_MD_CTX md; |
d8ec0dcf | 229 | int is_exp,n,i,j,k,cl; |
28797374 | 230 | int reuse_dd = 0; |
d02b48c6 | 231 | |
d8ec0dcf | 232 | is_exp=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher); |
d02b48c6 RE |
233 | c=s->s3->tmp.new_sym_enc; |
234 | m=s->s3->tmp.new_hash; | |
85e878f2 BL |
235 | /* m == NULL will lead to a crash later */ |
236 | OPENSSL_assert(m); | |
09b6c2ef | 237 | #ifndef OPENSSL_NO_COMP |
413c4f45 MC |
238 | if (s->s3->tmp.new_compression == NULL) |
239 | comp=NULL; | |
240 | else | |
241 | comp=s->s3->tmp.new_compression->method; | |
09b6c2ef | 242 | #endif |
d02b48c6 RE |
243 | |
244 | if (which & SSL3_CC_READ) | |
245 | { | |
28797374 BM |
246 | if (s->enc_read_ctx != NULL) |
247 | reuse_dd = 1; | |
248 | else if ((s->enc_read_ctx=OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL) | |
d02b48c6 | 249 | goto err; |
cc684e33 NL |
250 | else |
251 | /* make sure it's intialized in case we exit later with an error */ | |
252 | EVP_CIPHER_CTX_init(s->enc_read_ctx); | |
d02b48c6 | 253 | dd= s->enc_read_ctx; |
b948e2c5 DSH |
254 | |
255 | ssl_replace_hash(&s->read_hash,m); | |
09b6c2ef | 256 | #ifndef OPENSSL_NO_COMP |
dfeab068 RE |
257 | /* COMPRESS */ |
258 | if (s->expand != NULL) | |
259 | { | |
260 | COMP_CTX_free(s->expand); | |
261 | s->expand=NULL; | |
262 | } | |
263 | if (comp != NULL) | |
264 | { | |
265 | s->expand=COMP_CTX_new(comp); | |
266 | if (s->expand == NULL) | |
267 | { | |
268 | SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE,SSL_R_COMPRESSION_LIBRARY_ERROR); | |
269 | goto err2; | |
270 | } | |
413c4f45 MC |
271 | if (s->s3->rrec.comp == NULL) |
272 | s->s3->rrec.comp=(unsigned char *) | |
26a3a48d | 273 | OPENSSL_malloc(SSL3_RT_MAX_PLAIN_LENGTH); |
dfeab068 RE |
274 | if (s->s3->rrec.comp == NULL) |
275 | goto err; | |
276 | } | |
09b6c2ef | 277 | #endif |
d02b48c6 RE |
278 | memset(&(s->s3->read_sequence[0]),0,8); |
279 | mac_secret= &(s->s3->read_mac_secret[0]); | |
280 | } | |
281 | else | |
282 | { | |
28797374 BM |
283 | if (s->enc_write_ctx != NULL) |
284 | reuse_dd = 1; | |
285 | else if ((s->enc_write_ctx=OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL) | |
d02b48c6 | 286 | goto err; |
cc684e33 NL |
287 | else |
288 | /* make sure it's intialized in case we exit later with an error */ | |
289 | EVP_CIPHER_CTX_init(s->enc_write_ctx); | |
d02b48c6 | 290 | dd= s->enc_write_ctx; |
b948e2c5 | 291 | ssl_replace_hash(&s->write_hash,m); |
09b6c2ef | 292 | #ifndef OPENSSL_NO_COMP |
dfeab068 RE |
293 | /* COMPRESS */ |
294 | if (s->compress != NULL) | |
295 | { | |
296 | COMP_CTX_free(s->compress); | |
297 | s->compress=NULL; | |
298 | } | |
299 | if (comp != NULL) | |
300 | { | |
301 | s->compress=COMP_CTX_new(comp); | |
302 | if (s->compress == NULL) | |
303 | { | |
304 | SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE,SSL_R_COMPRESSION_LIBRARY_ERROR); | |
305 | goto err2; | |
306 | } | |
307 | } | |
09b6c2ef | 308 | #endif |
d02b48c6 RE |
309 | memset(&(s->s3->write_sequence[0]),0,8); |
310 | mac_secret= &(s->s3->write_mac_secret[0]); | |
311 | } | |
312 | ||
28797374 BM |
313 | if (reuse_dd) |
314 | EVP_CIPHER_CTX_cleanup(dd); | |
58964a49 | 315 | |
d02b48c6 RE |
316 | p=s->s3->tmp.key_block; |
317 | i=EVP_MD_size(m); | |
0eab41fb BL |
318 | if (i < 0) |
319 | goto err2; | |
436d318c | 320 | cl=EVP_CIPHER_key_length(c); |
d8ec0dcf | 321 | j=is_exp ? (cl < SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher) ? |
06ab81f9 | 322 | cl : SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher)) : cl; |
d8ec0dcf | 323 | /* Was j=(is_exp)?5:EVP_CIPHER_key_length(c); */ |
d02b48c6 RE |
324 | k=EVP_CIPHER_iv_length(c); |
325 | if ( (which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) || | |
326 | (which == SSL3_CHANGE_CIPHER_SERVER_READ)) | |
327 | { | |
328 | ms= &(p[ 0]); n=i+i; | |
329 | key= &(p[ n]); n+=j+j; | |
330 | iv= &(p[ n]); n+=k+k; | |
331 | er1= &(s->s3->client_random[0]); | |
332 | er2= &(s->s3->server_random[0]); | |
333 | } | |
334 | else | |
335 | { | |
336 | n=i; | |
337 | ms= &(p[ n]); n+=i+j; | |
338 | key= &(p[ n]); n+=j+k; | |
339 | iv= &(p[ n]); n+=k; | |
340 | er1= &(s->s3->server_random[0]); | |
341 | er2= &(s->s3->client_random[0]); | |
342 | } | |
343 | ||
344 | if (n > s->s3->tmp.key_block_length) | |
345 | { | |
5277d7cb | 346 | SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE,ERR_R_INTERNAL_ERROR); |
d02b48c6 RE |
347 | goto err2; |
348 | } | |
349 | ||
dbad1690 | 350 | EVP_MD_CTX_init(&md); |
d02b48c6 | 351 | memcpy(mac_secret,ms,i); |
d8ec0dcf | 352 | if (is_exp) |
d02b48c6 RE |
353 | { |
354 | /* In here I set both the read and write key/iv to the | |
355 | * same value since only the correct one will be used :-). | |
356 | */ | |
20d2186c | 357 | EVP_DigestInit_ex(&md,EVP_md5(), NULL); |
323f289c DSH |
358 | EVP_DigestUpdate(&md,key,j); |
359 | EVP_DigestUpdate(&md,er1,SSL3_RANDOM_SIZE); | |
360 | EVP_DigestUpdate(&md,er2,SSL3_RANDOM_SIZE); | |
20d2186c | 361 | EVP_DigestFinal_ex(&md,&(exp_key[0]),NULL); |
d02b48c6 RE |
362 | key= &(exp_key[0]); |
363 | ||
58964a49 RE |
364 | if (k > 0) |
365 | { | |
20d2186c | 366 | EVP_DigestInit_ex(&md,EVP_md5(), NULL); |
323f289c DSH |
367 | EVP_DigestUpdate(&md,er1,SSL3_RANDOM_SIZE); |
368 | EVP_DigestUpdate(&md,er2,SSL3_RANDOM_SIZE); | |
20d2186c | 369 | EVP_DigestFinal_ex(&md,&(exp_iv[0]),NULL); |
58964a49 RE |
370 | iv= &(exp_iv[0]); |
371 | } | |
d02b48c6 RE |
372 | } |
373 | ||
581f1c84 | 374 | EVP_CipherInit_ex(dd,c,NULL,key,iv,(which & SSL3_CC_WRITE)); |
58964a49 | 375 | |
1cf218bc DSH |
376 | #ifdef OPENSSL_SSL_TRACE_CRYPTO |
377 | if (s->msg_callback) | |
378 | { | |
379 | ||
380 | int wh = which & SSL3_CC_WRITE ? | |
381 | TLS1_RT_CRYPTO_WRITE : TLS1_RT_CRYPTO_READ; | |
382 | s->msg_callback(2, s->version, wh | TLS1_RT_CRYPTO_MAC, | |
383 | mac_secret, EVP_MD_size(m), | |
384 | s, s->msg_callback_arg); | |
385 | if (c->key_len) | |
386 | s->msg_callback(2, s->version, wh | TLS1_RT_CRYPTO_KEY, | |
387 | key, c->key_len, | |
388 | s, s->msg_callback_arg); | |
389 | if (k) | |
390 | { | |
391 | s->msg_callback(2, s->version, wh | TLS1_RT_CRYPTO_IV, | |
392 | iv, k, s, s->msg_callback_arg); | |
393 | } | |
394 | } | |
395 | #endif | |
396 | ||
4579924b RL |
397 | OPENSSL_cleanse(&(exp_key[0]),sizeof(exp_key)); |
398 | OPENSSL_cleanse(&(exp_iv[0]),sizeof(exp_iv)); | |
dbad1690 | 399 | EVP_MD_CTX_cleanup(&md); |
d02b48c6 RE |
400 | return(1); |
401 | err: | |
402 | SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE,ERR_R_MALLOC_FAILURE); | |
403 | err2: | |
404 | return(0); | |
405 | } | |
406 | ||
6b691a5c | 407 | int ssl3_setup_key_block(SSL *s) |
d02b48c6 RE |
408 | { |
409 | unsigned char *p; | |
e778802f BL |
410 | const EVP_CIPHER *c; |
411 | const EVP_MD *hash; | |
06ab81f9 | 412 | int num; |
82b0bf0b | 413 | int ret = 0; |
413c4f45 | 414 | SSL_COMP *comp; |
d02b48c6 RE |
415 | |
416 | if (s->s3->tmp.key_block_length != 0) | |
417 | return(1); | |
418 | ||
5e3ff62c | 419 | if (!ssl_cipher_get_evp(s->session,&c,&hash,NULL,NULL,&comp, 0)) |
d02b48c6 RE |
420 | { |
421 | SSLerr(SSL_F_SSL3_SETUP_KEY_BLOCK,SSL_R_CIPHER_OR_HASH_UNAVAILABLE); | |
422 | return(0); | |
423 | } | |
424 | ||
425 | s->s3->tmp.new_sym_enc=c; | |
426 | s->s3->tmp.new_hash=hash; | |
09b6c2ef DSH |
427 | #ifdef OPENSSL_NO_COMP |
428 | s->s3->tmp.new_compression=NULL; | |
429 | #else | |
413c4f45 | 430 | s->s3->tmp.new_compression=comp; |
09b6c2ef | 431 | #endif |
d02b48c6 | 432 | |
0eab41fb BL |
433 | num=EVP_MD_size(hash); |
434 | if (num < 0) | |
435 | return 0; | |
436 | ||
437 | num=EVP_CIPHER_key_length(c)+num+EVP_CIPHER_iv_length(c); | |
d02b48c6 RE |
438 | num*=2; |
439 | ||
440 | ssl3_cleanup_key_block(s); | |
441 | ||
26a3a48d | 442 | if ((p=OPENSSL_malloc(num)) == NULL) |
d02b48c6 RE |
443 | goto err; |
444 | ||
445 | s->s3->tmp.key_block_length=num; | |
446 | s->s3->tmp.key_block=p; | |
447 | ||
82b0bf0b BM |
448 | ret = ssl3_generate_key_block(s,p,num); |
449 | ||
c21506ba BM |
450 | if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS)) |
451 | { | |
452 | /* enable vulnerability countermeasure for CBC ciphers with | |
453 | * known-IV problem (http://www.openssl.org/~bodo/tls-cbc.txt) | |
454 | */ | |
455 | s->s3->need_empty_fragments = 1; | |
456 | ||
d1d0be3c BM |
457 | if (s->session->cipher != NULL) |
458 | { | |
52b8dad8 | 459 | if (s->session->cipher->algorithm_enc == SSL_eNULL) |
d1d0be3c BM |
460 | s->s3->need_empty_fragments = 0; |
461 | ||
82b0bf0b | 462 | #ifndef OPENSSL_NO_RC4 |
52b8dad8 | 463 | if (s->session->cipher->algorithm_enc == SSL_RC4) |
d1d0be3c | 464 | s->s3->need_empty_fragments = 0; |
82b0bf0b | 465 | #endif |
d1d0be3c | 466 | } |
c21506ba | 467 | } |
d02b48c6 | 468 | |
82b0bf0b BM |
469 | return ret; |
470 | ||
d02b48c6 RE |
471 | err: |
472 | SSLerr(SSL_F_SSL3_SETUP_KEY_BLOCK,ERR_R_MALLOC_FAILURE); | |
473 | return(0); | |
474 | } | |
475 | ||
6b691a5c | 476 | void ssl3_cleanup_key_block(SSL *s) |
d02b48c6 RE |
477 | { |
478 | if (s->s3->tmp.key_block != NULL) | |
479 | { | |
4579924b | 480 | OPENSSL_cleanse(s->s3->tmp.key_block, |
d02b48c6 | 481 | s->s3->tmp.key_block_length); |
26a3a48d | 482 | OPENSSL_free(s->s3->tmp.key_block); |
d02b48c6 RE |
483 | s->s3->tmp.key_block=NULL; |
484 | } | |
485 | s->s3->tmp.key_block_length=0; | |
486 | } | |
487 | ||
23a22b4c MC |
488 | /*- |
489 | * ssl3_enc encrypts/decrypts the record in |s->wrec| / |s->rrec|, respectively. | |
93cab6b3 BL |
490 | * |
491 | * Returns: | |
492 | * 0: (in non-constant time) if the record is publically invalid (i.e. too | |
493 | * short etc). | |
494 | * 1: if the record's padding is valid / the encryption was successful. | |
495 | * -1: if the record's padding is invalid or, if sending, an internal error | |
478b50cf | 496 | * occurred. |
93cab6b3 | 497 | */ |
6b691a5c | 498 | int ssl3_enc(SSL *s, int send) |
d02b48c6 RE |
499 | { |
500 | SSL3_RECORD *rec; | |
501 | EVP_CIPHER_CTX *ds; | |
502 | unsigned long l; | |
2acc020b | 503 | int bs,i,mac_size=0; |
e778802f | 504 | const EVP_CIPHER *enc; |
d02b48c6 RE |
505 | |
506 | if (send) | |
507 | { | |
508 | ds=s->enc_write_ctx; | |
509 | rec= &(s->s3->wrec); | |
510 | if (s->enc_write_ctx == NULL) | |
dfeab068 | 511 | enc=NULL; |
d02b48c6 | 512 | else |
d02b48c6 | 513 | enc=EVP_CIPHER_CTX_cipher(s->enc_write_ctx); |
d02b48c6 RE |
514 | } |
515 | else | |
516 | { | |
517 | ds=s->enc_read_ctx; | |
518 | rec= &(s->s3->rrec); | |
519 | if (s->enc_read_ctx == NULL) | |
dfeab068 | 520 | enc=NULL; |
d02b48c6 | 521 | else |
d02b48c6 | 522 | enc=EVP_CIPHER_CTX_cipher(s->enc_read_ctx); |
d02b48c6 RE |
523 | } |
524 | ||
525 | if ((s->session == NULL) || (ds == NULL) || | |
dfeab068 | 526 | (enc == NULL)) |
d02b48c6 | 527 | { |
44e48abc | 528 | memmove(rec->data,rec->input,rec->length); |
d02b48c6 RE |
529 | rec->input=rec->data; |
530 | } | |
531 | else | |
532 | { | |
533 | l=rec->length; | |
534 | bs=EVP_CIPHER_block_size(ds->cipher); | |
535 | ||
dfeab068 RE |
536 | /* COMPRESS */ |
537 | ||
d02b48c6 RE |
538 | if ((bs != 1) && send) |
539 | { | |
540 | i=bs-((int)l%bs); | |
541 | ||
542 | /* we need to add 'i-1' padding bytes */ | |
543 | l+=i; | |
27dfffd5 DSH |
544 | /* the last of these zero bytes will be overwritten |
545 | * with the padding length. */ | |
546 | memset(&rec->input[rec->length], 0, i); | |
d02b48c6 RE |
547 | rec->length+=i; |
548 | rec->input[l-1]=(i-1); | |
549 | } | |
285b4275 BM |
550 | |
551 | if (!send) | |
552 | { | |
553 | if (l == 0 || l%bs != 0) | |
ee60d9fb | 554 | return 0; |
ea513641 | 555 | /* otherwise, rec->length >= bs */ |
285b4275 BM |
556 | } |
557 | ||
fe78f08d MC |
558 | if(EVP_Cipher(ds,rec->data,rec->input,l) < 1) |
559 | return -1; | |
d02b48c6 | 560 | |
2acc020b BL |
561 | if (EVP_MD_CTX_md(s->read_hash) != NULL) |
562 | mac_size = EVP_MD_CTX_size(s->read_hash); | |
d02b48c6 | 563 | if ((bs != 1) && !send) |
2acc020b | 564 | return ssl3_cbc_remove_padding(s, rec, bs, mac_size); |
d02b48c6 RE |
565 | } |
566 | return(1); | |
567 | } | |
568 | ||
6b691a5c | 569 | void ssl3_init_finished_mac(SSL *s) |
d02b48c6 | 570 | { |
81025661 DSH |
571 | if (s->s3->handshake_buffer) BIO_free(s->s3->handshake_buffer); |
572 | if (s->s3->handshake_dgst) ssl3_free_digest_list(s); | |
573 | s->s3->handshake_buffer=BIO_new(BIO_s_mem()); | |
8164032a | 574 | (void)BIO_set_close(s->s3->handshake_buffer,BIO_CLOSE); |
d02b48c6 RE |
575 | } |
576 | ||
81025661 DSH |
577 | void ssl3_free_digest_list(SSL *s) |
578 | { | |
579 | int i; | |
580 | if (!s->s3->handshake_dgst) return; | |
581 | for (i=0;i<SSL_MAX_DIGEST;i++) | |
582 | { | |
583 | if (s->s3->handshake_dgst[i]) | |
584 | EVP_MD_CTX_destroy(s->s3->handshake_dgst[i]); | |
585 | } | |
586 | OPENSSL_free(s->s3->handshake_dgst); | |
587 | s->s3->handshake_dgst=NULL; | |
588 | } | |
f37f20ff | 589 | |
81025661 DSH |
590 | |
591 | ||
6b691a5c | 592 | void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len) |
d02b48c6 | 593 | { |
f37f20ff | 594 | if (s->s3->handshake_buffer && !(s->s3->flags & TLS1_FLAGS_KEEP_HANDSHAKE)) |
81025661 DSH |
595 | { |
596 | BIO_write (s->s3->handshake_buffer,(void *)buf,len); | |
597 | } | |
598 | else | |
599 | { | |
600 | int i; | |
601 | for (i=0;i< SSL_MAX_DIGEST;i++) | |
602 | { | |
603 | if (s->s3->handshake_dgst[i]!= NULL) | |
604 | EVP_DigestUpdate(s->s3->handshake_dgst[i],buf,len); | |
605 | } | |
606 | } | |
d02b48c6 | 607 | } |
6ba71a71 BL |
608 | |
609 | int ssl3_digest_cached_records(SSL *s) | |
81025661 | 610 | { |
6ba71a71 BL |
611 | int i; |
612 | long mask; | |
613 | const EVP_MD *md; | |
614 | long hdatalen; | |
615 | void *hdata; | |
616 | ||
617 | /* Allocate handshake_dgst array */ | |
618 | ssl3_free_digest_list(s); | |
619 | s->s3->handshake_dgst = OPENSSL_malloc(SSL_MAX_DIGEST * sizeof(EVP_MD_CTX *)); | |
bf8e7047 JM |
620 | if (s->s3->handshake_dgst == NULL) |
621 | { | |
622 | SSLerr(SSL_F_SSL3_DIGEST_CACHED_RECORDS, ERR_R_MALLOC_FAILURE); | |
623 | return 0; | |
624 | } | |
6ba71a71 BL |
625 | memset(s->s3->handshake_dgst,0,SSL_MAX_DIGEST *sizeof(EVP_MD_CTX *)); |
626 | hdatalen = BIO_get_mem_data(s->s3->handshake_buffer,&hdata); | |
627 | if (hdatalen <= 0) | |
628 | { | |
220bd849 | 629 | SSLerr(SSL_F_SSL3_DIGEST_CACHED_RECORDS, SSL_R_BAD_HANDSHAKE_LENGTH); |
6ba71a71 BL |
630 | return 0; |
631 | } | |
632 | ||
633 | /* Loop through bitso of algorithm2 field and create MD_CTX-es */ | |
634 | for (i=0;ssl_get_handshake_digest(i,&mask,&md); i++) | |
635 | { | |
7409d7ad | 636 | if ((mask & ssl_get_algorithm2(s)) && md) |
81025661 | 637 | { |
6ba71a71 | 638 | s->s3->handshake_dgst[i]=EVP_MD_CTX_create(); |
086e32a6 DSH |
639 | if (EVP_MD_nid(md) == NID_md5) |
640 | { | |
641 | EVP_MD_CTX_set_flags(s->s3->handshake_dgst[i], | |
642 | EVP_MD_CTX_FLAG_NON_FIPS_ALLOW); | |
643 | } | |
8f119a03 | 644 | EVP_DigestInit_ex(s->s3->handshake_dgst[i],md,NULL); |
6ba71a71 BL |
645 | EVP_DigestUpdate(s->s3->handshake_dgst[i],hdata,hdatalen); |
646 | } | |
647 | else | |
648 | { | |
649 | s->s3->handshake_dgst[i]=NULL; | |
81025661 | 650 | } |
6ba71a71 | 651 | } |
f37f20ff DSH |
652 | if (!(s->s3->flags & TLS1_FLAGS_KEEP_HANDSHAKE)) |
653 | { | |
654 | /* Free handshake_buffer BIO */ | |
655 | BIO_free(s->s3->handshake_buffer); | |
656 | s->s3->handshake_buffer = NULL; | |
657 | } | |
d02b48c6 | 658 | |
6ba71a71 | 659 | return 1; |
81025661 | 660 | } |
6ba71a71 | 661 | |
81025661 | 662 | int ssl3_cert_verify_mac(SSL *s, int md_nid, unsigned char *p) |
58964a49 | 663 | { |
81025661 | 664 | return(ssl3_handshake_mac(s,md_nid,NULL,0,p)); |
58964a49 | 665 | } |
81025661 | 666 | int ssl3_final_finish_mac(SSL *s, |
245206ea | 667 | const char *sender, int len, unsigned char *p) |
58964a49 | 668 | { |
687721a7 | 669 | int ret, sha1len; |
81025661 | 670 | ret=ssl3_handshake_mac(s,NID_md5,sender,len,p); |
687721a7 MC |
671 | if(ret == 0) |
672 | return 0; | |
673 | ||
58964a49 | 674 | p+=ret; |
687721a7 MC |
675 | |
676 | sha1len=ssl3_handshake_mac(s,NID_sha1,sender,len,p); | |
677 | if(sha1len == 0) | |
678 | return 0; | |
679 | ||
680 | ret+=sha1len; | |
58964a49 RE |
681 | return(ret); |
682 | } | |
81025661 | 683 | static int ssl3_handshake_mac(SSL *s, int md_nid, |
f2d9a32c | 684 | const char *sender, int len, unsigned char *p) |
d02b48c6 RE |
685 | { |
686 | unsigned int ret; | |
687 | int npad,n; | |
688 | unsigned int i; | |
689 | unsigned char md_buf[EVP_MAX_MD_SIZE]; | |
81025661 | 690 | EVP_MD_CTX ctx,*d=NULL; |
6ba71a71 | 691 | |
81025661 | 692 | if (s->s3->handshake_buffer) |
6ba71a71 BL |
693 | if (!ssl3_digest_cached_records(s)) |
694 | return 0; | |
d02b48c6 | 695 | |
8711efb4 | 696 | /* Search for digest of specified type in the handshake_dgst |
81025661 DSH |
697 | * array*/ |
698 | for (i=0;i<SSL_MAX_DIGEST;i++) | |
699 | { | |
700 | if (s->s3->handshake_dgst[i]&&EVP_MD_CTX_type(s->s3->handshake_dgst[i])==md_nid) | |
701 | { | |
702 | d=s->s3->handshake_dgst[i]; | |
703 | break; | |
704 | } | |
705 | } | |
706 | if (!d) { | |
707 | SSLerr(SSL_F_SSL3_HANDSHAKE_MAC,SSL_R_NO_REQUIRED_DIGEST); | |
708 | return 0; | |
709 | } | |
dbad1690 | 710 | EVP_MD_CTX_init(&ctx); |
086e32a6 | 711 | EVP_MD_CTX_set_flags(&ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW); |
81025661 | 712 | EVP_MD_CTX_copy_ex(&ctx,d); |
d02b48c6 | 713 | n=EVP_MD_CTX_size(&ctx); |
0eab41fb BL |
714 | if (n < 0) |
715 | return 0; | |
716 | ||
d02b48c6 | 717 | npad=(48/n)*n; |
d02b48c6 | 718 | if (sender != NULL) |
58964a49 | 719 | EVP_DigestUpdate(&ctx,sender,len); |
d02b48c6 RE |
720 | EVP_DigestUpdate(&ctx,s->session->master_key, |
721 | s->session->master_key_length); | |
722 | EVP_DigestUpdate(&ctx,ssl3_pad_1,npad); | |
20d2186c | 723 | EVP_DigestFinal_ex(&ctx,md_buf,&i); |
d02b48c6 | 724 | |
20d2186c | 725 | EVP_DigestInit_ex(&ctx,EVP_MD_CTX_md(&ctx), NULL); |
d02b48c6 RE |
726 | EVP_DigestUpdate(&ctx,s->session->master_key, |
727 | s->session->master_key_length); | |
728 | EVP_DigestUpdate(&ctx,ssl3_pad_2,npad); | |
729 | EVP_DigestUpdate(&ctx,md_buf,i); | |
20d2186c | 730 | EVP_DigestFinal_ex(&ctx,p,&ret); |
d02b48c6 | 731 | |
dbad1690 | 732 | EVP_MD_CTX_cleanup(&ctx); |
d02b48c6 RE |
733 | |
734 | return((int)ret); | |
735 | } | |
736 | ||
0eab41fb | 737 | int n_ssl3_mac(SSL *ssl, unsigned char *md, int send) |
d02b48c6 RE |
738 | { |
739 | SSL3_RECORD *rec; | |
740 | unsigned char *mac_sec,*seq; | |
741 | EVP_MD_CTX md_ctx; | |
b948e2c5 | 742 | const EVP_MD_CTX *hash; |
d02b48c6 | 743 | unsigned char *p,rec_char; |
dd7e60bd | 744 | size_t md_size; |
36d16f8e | 745 | int npad; |
0eab41fb | 746 | int t; |
d02b48c6 RE |
747 | |
748 | if (send) | |
749 | { | |
750 | rec= &(ssl->s3->wrec); | |
751 | mac_sec= &(ssl->s3->write_mac_secret[0]); | |
752 | seq= &(ssl->s3->write_sequence[0]); | |
753 | hash=ssl->write_hash; | |
754 | } | |
755 | else | |
756 | { | |
757 | rec= &(ssl->s3->rrec); | |
758 | mac_sec= &(ssl->s3->read_mac_secret[0]); | |
759 | seq= &(ssl->s3->read_sequence[0]); | |
760 | hash=ssl->read_hash; | |
761 | } | |
762 | ||
0eab41fb BL |
763 | t=EVP_MD_CTX_size(hash); |
764 | if (t < 0) | |
765 | return -1; | |
766 | md_size=t; | |
d02b48c6 RE |
767 | npad=(48/md_size)*md_size; |
768 | ||
2acc020b BL |
769 | if (!send && |
770 | EVP_CIPHER_CTX_mode(ssl->enc_read_ctx) == EVP_CIPH_CBC_MODE && | |
771 | ssl3_cbc_record_digest_supported(hash)) | |
772 | { | |
773 | /* This is a CBC-encrypted record. We must avoid leaking any | |
774 | * timing-side channel information about how many blocks of | |
775 | * data we are hashing because that gives an attacker a | |
776 | * timing-oracle. */ | |
777 | ||
23a22b4c MC |
778 | /*- |
779 | * npad is, at most, 48 bytes and that's with MD5: | |
2acc020b BL |
780 | * 16 + 48 + 8 (sequence bytes) + 1 + 2 = 75. |
781 | * | |
782 | * With SHA-1 (the largest hash speced for SSLv3) the hash size | |
783 | * goes up 4, but npad goes down by 8, resulting in a smaller | |
784 | * total size. */ | |
785 | unsigned char header[75]; | |
786 | unsigned j = 0; | |
787 | memcpy(header+j, mac_sec, md_size); | |
788 | j += md_size; | |
789 | memcpy(header+j, ssl3_pad_1, npad); | |
790 | j += npad; | |
791 | memcpy(header+j, seq, 8); | |
792 | j += 8; | |
793 | header[j++] = rec->type; | |
794 | header[j++] = rec->length >> 8; | |
795 | header[j++] = rec->length & 0xff; | |
796 | ||
797 | ssl3_cbc_digest_record( | |
798 | hash, | |
799 | md, &md_size, | |
800 | header, rec->input, | |
dd7e60bd | 801 | rec->length + md_size, rec->orig_len, |
2acc020b BL |
802 | mac_sec, md_size, |
803 | 1 /* is SSLv3 */); | |
804 | } | |
805 | else | |
806 | { | |
807 | unsigned int md_size_u; | |
808 | /* Chop the digest off the end :-) */ | |
809 | EVP_MD_CTX_init(&md_ctx); | |
810 | ||
811 | EVP_MD_CTX_copy_ex( &md_ctx,hash); | |
812 | EVP_DigestUpdate(&md_ctx,mac_sec,md_size); | |
813 | EVP_DigestUpdate(&md_ctx,ssl3_pad_1,npad); | |
814 | EVP_DigestUpdate(&md_ctx,seq,8); | |
815 | rec_char=rec->type; | |
816 | EVP_DigestUpdate(&md_ctx,&rec_char,1); | |
817 | p=md; | |
818 | s2n(rec->length,p); | |
819 | EVP_DigestUpdate(&md_ctx,md,2); | |
820 | EVP_DigestUpdate(&md_ctx,rec->input,rec->length); | |
821 | EVP_DigestFinal_ex( &md_ctx,md,NULL); | |
822 | ||
823 | EVP_MD_CTX_copy_ex( &md_ctx,hash); | |
824 | EVP_DigestUpdate(&md_ctx,mac_sec,md_size); | |
825 | EVP_DigestUpdate(&md_ctx,ssl3_pad_2,npad); | |
826 | EVP_DigestUpdate(&md_ctx,md,md_size); | |
827 | EVP_DigestFinal_ex( &md_ctx,md,&md_size_u); | |
828 | md_size = md_size_u; | |
829 | ||
830 | EVP_MD_CTX_cleanup(&md_ctx); | |
831 | } | |
dbad1690 | 832 | |
36d16f8e BL |
833 | ssl3_record_sequence_update(seq); |
834 | return(md_size); | |
835 | } | |
836 | ||
837 | void ssl3_record_sequence_update(unsigned char *seq) | |
838 | { | |
839 | int i; | |
840 | ||
d02b48c6 | 841 | for (i=7; i>=0; i--) |
1876cc32 BM |
842 | { |
843 | ++seq[i]; | |
844 | if (seq[i] != 0) break; | |
845 | } | |
d02b48c6 RE |
846 | } |
847 | ||
6b691a5c UM |
848 | int ssl3_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p, |
849 | int len) | |
d02b48c6 | 850 | { |
e778802f | 851 | static const unsigned char *salt[3]={ |
ca570cfd | 852 | #ifndef CHARSET_EBCDIC |
e778802f BL |
853 | (const unsigned char *)"A", |
854 | (const unsigned char *)"BB", | |
855 | (const unsigned char *)"CCC", | |
ca570cfd UM |
856 | #else |
857 | (const unsigned char *)"\x41", | |
858 | (const unsigned char *)"\x42\x42", | |
859 | (const unsigned char *)"\x43\x43\x43", | |
860 | #endif | |
d02b48c6 RE |
861 | }; |
862 | unsigned char buf[EVP_MAX_MD_SIZE]; | |
863 | EVP_MD_CTX ctx; | |
864 | int i,ret=0; | |
865 | unsigned int n; | |
81f57e5a | 866 | #ifdef OPENSSL_SSL_TRACE_CRYPTO |
1cf218bc DSH |
867 | unsigned char *tmpout = out; |
868 | #endif | |
d02b48c6 | 869 | |
dbad1690 | 870 | EVP_MD_CTX_init(&ctx); |
d02b48c6 RE |
871 | for (i=0; i<3; i++) |
872 | { | |
20d2186c | 873 | EVP_DigestInit_ex(&ctx,s->ctx->sha1, NULL); |
e778802f | 874 | EVP_DigestUpdate(&ctx,salt[i],strlen((const char *)salt[i])); |
d02b48c6 RE |
875 | EVP_DigestUpdate(&ctx,p,len); |
876 | EVP_DigestUpdate(&ctx,&(s->s3->client_random[0]), | |
877 | SSL3_RANDOM_SIZE); | |
878 | EVP_DigestUpdate(&ctx,&(s->s3->server_random[0]), | |
879 | SSL3_RANDOM_SIZE); | |
20d2186c | 880 | EVP_DigestFinal_ex(&ctx,buf,&n); |
d02b48c6 | 881 | |
20d2186c | 882 | EVP_DigestInit_ex(&ctx,s->ctx->md5, NULL); |
d02b48c6 RE |
883 | EVP_DigestUpdate(&ctx,p,len); |
884 | EVP_DigestUpdate(&ctx,buf,n); | |
20d2186c | 885 | EVP_DigestFinal_ex(&ctx,out,&n); |
d02b48c6 RE |
886 | out+=n; |
887 | ret+=n; | |
888 | } | |
dbad1690 | 889 | EVP_MD_CTX_cleanup(&ctx); |
1cf218bc | 890 | |
81f57e5a | 891 | #ifdef OPENSSL_SSL_TRACE_CRYPTO |
1cf218bc DSH |
892 | if (s->msg_callback) |
893 | { | |
894 | s->msg_callback(2, s->version, TLS1_RT_CRYPTO_PREMASTER, | |
895 | p, len, s, s->msg_callback_arg); | |
896 | s->msg_callback(2, s->version, TLS1_RT_CRYPTO_CLIENT_RANDOM, | |
897 | s->s3->client_random, SSL3_RANDOM_SIZE, | |
898 | s, s->msg_callback_arg); | |
899 | s->msg_callback(2, s->version, TLS1_RT_CRYPTO_SERVER_RANDOM, | |
900 | s->s3->server_random, SSL3_RANDOM_SIZE, | |
901 | s, s->msg_callback_arg); | |
902 | s->msg_callback(2, s->version, TLS1_RT_CRYPTO_MASTER, | |
903 | tmpout, SSL3_MASTER_SECRET_SIZE, | |
904 | s, s->msg_callback_arg); | |
905 | } | |
906 | #endif | |
d02b48c6 RE |
907 | return(ret); |
908 | } | |
909 | ||
6b691a5c | 910 | int ssl3_alert_code(int code) |
58964a49 RE |
911 | { |
912 | switch (code) | |
913 | { | |
914 | case SSL_AD_CLOSE_NOTIFY: return(SSL3_AD_CLOSE_NOTIFY); | |
915 | case SSL_AD_UNEXPECTED_MESSAGE: return(SSL3_AD_UNEXPECTED_MESSAGE); | |
916 | case SSL_AD_BAD_RECORD_MAC: return(SSL3_AD_BAD_RECORD_MAC); | |
917 | case SSL_AD_DECRYPTION_FAILED: return(SSL3_AD_BAD_RECORD_MAC); | |
918 | case SSL_AD_RECORD_OVERFLOW: return(SSL3_AD_BAD_RECORD_MAC); | |
919 | case SSL_AD_DECOMPRESSION_FAILURE:return(SSL3_AD_DECOMPRESSION_FAILURE); | |
920 | case SSL_AD_HANDSHAKE_FAILURE: return(SSL3_AD_HANDSHAKE_FAILURE); | |
921 | case SSL_AD_NO_CERTIFICATE: return(SSL3_AD_NO_CERTIFICATE); | |
922 | case SSL_AD_BAD_CERTIFICATE: return(SSL3_AD_BAD_CERTIFICATE); | |
923 | case SSL_AD_UNSUPPORTED_CERTIFICATE:return(SSL3_AD_UNSUPPORTED_CERTIFICATE); | |
924 | case SSL_AD_CERTIFICATE_REVOKED:return(SSL3_AD_CERTIFICATE_REVOKED); | |
925 | case SSL_AD_CERTIFICATE_EXPIRED:return(SSL3_AD_CERTIFICATE_EXPIRED); | |
926 | case SSL_AD_CERTIFICATE_UNKNOWN:return(SSL3_AD_CERTIFICATE_UNKNOWN); | |
927 | case SSL_AD_ILLEGAL_PARAMETER: return(SSL3_AD_ILLEGAL_PARAMETER); | |
928 | case SSL_AD_UNKNOWN_CA: return(SSL3_AD_BAD_CERTIFICATE); | |
929 | case SSL_AD_ACCESS_DENIED: return(SSL3_AD_HANDSHAKE_FAILURE); | |
930 | case SSL_AD_DECODE_ERROR: return(SSL3_AD_HANDSHAKE_FAILURE); | |
931 | case SSL_AD_DECRYPT_ERROR: return(SSL3_AD_HANDSHAKE_FAILURE); | |
657e60fa | 932 | case SSL_AD_EXPORT_RESTRICTION: return(SSL3_AD_HANDSHAKE_FAILURE); |
58964a49 RE |
933 | case SSL_AD_PROTOCOL_VERSION: return(SSL3_AD_HANDSHAKE_FAILURE); |
934 | case SSL_AD_INSUFFICIENT_SECURITY:return(SSL3_AD_HANDSHAKE_FAILURE); | |
935 | case SSL_AD_INTERNAL_ERROR: return(SSL3_AD_HANDSHAKE_FAILURE); | |
657e60fa | 936 | case SSL_AD_USER_CANCELLED: return(SSL3_AD_HANDSHAKE_FAILURE); |
58964a49 | 937 | case SSL_AD_NO_RENEGOTIATION: return(-1); /* Don't send it :-) */ |
d32f888d BM |
938 | case SSL_AD_UNSUPPORTED_EXTENSION: return(SSL3_AD_HANDSHAKE_FAILURE); |
939 | case SSL_AD_CERTIFICATE_UNOBTAINABLE: return(SSL3_AD_HANDSHAKE_FAILURE); | |
f7914dbf | 940 | case SSL_AD_UNRECOGNIZED_NAME: return(SSL3_AD_HANDSHAKE_FAILURE); |
d32f888d BM |
941 | case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE: return(SSL3_AD_HANDSHAKE_FAILURE); |
942 | case SSL_AD_BAD_CERTIFICATE_HASH_VALUE: return(SSL3_AD_HANDSHAKE_FAILURE); | |
ddac1974 | 943 | case SSL_AD_UNKNOWN_PSK_IDENTITY:return(TLS1_AD_UNKNOWN_PSK_IDENTITY); |
cf6da053 | 944 | case SSL_AD_INAPPROPRIATE_FALLBACK:return(TLS1_AD_INAPPROPRIATE_FALLBACK); |
58964a49 RE |
945 | default: return(-1); |
946 | } | |
947 | } |