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58964a49 RE |
1 | /* ssl/t1_enc.c */ |
2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
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 | */ | |
58964a49 RE |
137 | |
138 | #include <stdio.h> | |
7b63c0fa | 139 | #include "ssl_locl.h" |
fceac0bc | 140 | #ifndef OPENSSL_NO_COMP |
ec577822 | 141 | #include <openssl/comp.h> |
fceac0bc | 142 | #endif |
ec577822 BM |
143 | #include <openssl/evp.h> |
144 | #include <openssl/hmac.h> | |
dbad1690 | 145 | #include <openssl/md5.h> |
b4b15f68 | 146 | #include <openssl/rand.h> |
0e1dba93 DSH |
147 | #ifdef KSSL_DEBUG |
148 | #include <openssl/des.h> | |
149 | #endif | |
58964a49 | 150 | |
761772d7 | 151 | /* seed1 through seed5 are virtually concatenated */ |
72240ab3 | 152 | static int tls1_P_hash(const EVP_MD *md, const unsigned char *sec, |
761772d7 BM |
153 | int sec_len, |
154 | const void *seed1, int seed1_len, | |
155 | const void *seed2, int seed2_len, | |
156 | const void *seed3, int seed3_len, | |
157 | const void *seed4, int seed4_len, | |
158 | const void *seed5, int seed5_len, | |
61f5b6f3 | 159 | unsigned char *out, int olen) |
58964a49 | 160 | { |
e9735943 | 161 | int chunk; |
95eef4df DSH |
162 | size_t j; |
163 | EVP_MD_CTX ctx, ctx_tmp; | |
164 | EVP_PKEY *mac_key; | |
54a656ef | 165 | unsigned char A1[EVP_MAX_MD_SIZE]; |
95eef4df | 166 | size_t A1_len; |
72240ab3 | 167 | int ret = 0; |
58964a49 RE |
168 | |
169 | chunk=EVP_MD_size(md); | |
0eab41fb | 170 | OPENSSL_assert(chunk >= 0); |
58964a49 | 171 | |
95eef4df DSH |
172 | EVP_MD_CTX_init(&ctx); |
173 | EVP_MD_CTX_init(&ctx_tmp); | |
7043fa70 DSH |
174 | EVP_MD_CTX_set_flags(&ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW); |
175 | EVP_MD_CTX_set_flags(&ctx_tmp, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW); | |
95eef4df DSH |
176 | mac_key = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, NULL, sec, sec_len); |
177 | if (!mac_key) | |
72240ab3 | 178 | goto err; |
95eef4df | 179 | if (!EVP_DigestSignInit(&ctx,NULL,md, NULL, mac_key)) |
72240ab3 | 180 | goto err; |
95eef4df | 181 | if (!EVP_DigestSignInit(&ctx_tmp,NULL,md, NULL, mac_key)) |
72240ab3 | 182 | goto err; |
95eef4df | 183 | if (seed1 && !EVP_DigestSignUpdate(&ctx,seed1,seed1_len)) |
72240ab3 | 184 | goto err; |
95eef4df | 185 | if (seed2 && !EVP_DigestSignUpdate(&ctx,seed2,seed2_len)) |
72240ab3 | 186 | goto err; |
95eef4df | 187 | if (seed3 && !EVP_DigestSignUpdate(&ctx,seed3,seed3_len)) |
72240ab3 | 188 | goto err; |
95eef4df | 189 | if (seed4 && !EVP_DigestSignUpdate(&ctx,seed4,seed4_len)) |
72240ab3 | 190 | goto err; |
95eef4df DSH |
191 | if (seed5 && !EVP_DigestSignUpdate(&ctx,seed5,seed5_len)) |
192 | goto err; | |
193 | if (!EVP_DigestSignFinal(&ctx,A1,&A1_len)) | |
72240ab3 | 194 | goto err; |
58964a49 | 195 | |
58964a49 RE |
196 | for (;;) |
197 | { | |
95eef4df DSH |
198 | /* Reinit mac contexts */ |
199 | if (!EVP_DigestSignInit(&ctx,NULL,md, NULL, mac_key)) | |
72240ab3 | 200 | goto err; |
95eef4df | 201 | if (!EVP_DigestSignInit(&ctx_tmp,NULL,md, NULL, mac_key)) |
72240ab3 | 202 | goto err; |
95eef4df | 203 | if (!EVP_DigestSignUpdate(&ctx,A1,A1_len)) |
72240ab3 | 204 | goto err; |
95eef4df | 205 | if (!EVP_DigestSignUpdate(&ctx_tmp,A1,A1_len)) |
72240ab3 | 206 | goto err; |
95eef4df | 207 | if (seed1 && !EVP_DigestSignUpdate(&ctx,seed1,seed1_len)) |
72240ab3 | 208 | goto err; |
95eef4df | 209 | if (seed2 && !EVP_DigestSignUpdate(&ctx,seed2,seed2_len)) |
72240ab3 | 210 | goto err; |
95eef4df | 211 | if (seed3 && !EVP_DigestSignUpdate(&ctx,seed3,seed3_len)) |
72240ab3 | 212 | goto err; |
95eef4df | 213 | if (seed4 && !EVP_DigestSignUpdate(&ctx,seed4,seed4_len)) |
72240ab3 | 214 | goto err; |
95eef4df | 215 | if (seed5 && !EVP_DigestSignUpdate(&ctx,seed5,seed5_len)) |
72240ab3 | 216 | goto err; |
58964a49 RE |
217 | |
218 | if (olen > chunk) | |
219 | { | |
95eef4df | 220 | if (!EVP_DigestSignFinal(&ctx,out,&j)) |
72240ab3 | 221 | goto err; |
58964a49 RE |
222 | out+=j; |
223 | olen-=j; | |
95eef4df DSH |
224 | /* calc the next A1 value */ |
225 | if (!EVP_DigestSignFinal(&ctx_tmp,A1,&A1_len)) | |
72240ab3 | 226 | goto err; |
58964a49 RE |
227 | } |
228 | else /* last one */ | |
229 | { | |
95eef4df | 230 | if (!EVP_DigestSignFinal(&ctx,A1,&A1_len)) |
72240ab3 | 231 | goto err; |
58964a49 RE |
232 | memcpy(out,A1,olen); |
233 | break; | |
234 | } | |
235 | } | |
72240ab3 DSH |
236 | ret = 1; |
237 | err: | |
95eef4df DSH |
238 | EVP_PKEY_free(mac_key); |
239 | EVP_MD_CTX_cleanup(&ctx); | |
240 | EVP_MD_CTX_cleanup(&ctx_tmp); | |
4579924b | 241 | OPENSSL_cleanse(A1,sizeof(A1)); |
72240ab3 | 242 | return ret; |
58964a49 RE |
243 | } |
244 | ||
761772d7 | 245 | /* seed1 through seed5 are virtually concatenated */ |
72240ab3 | 246 | static int tls1_PRF(long digest_mask, |
761772d7 BM |
247 | const void *seed1, int seed1_len, |
248 | const void *seed2, int seed2_len, | |
249 | const void *seed3, int seed3_len, | |
250 | const void *seed4, int seed4_len, | |
251 | const void *seed5, int seed5_len, | |
252 | const unsigned char *sec, int slen, | |
253 | unsigned char *out1, | |
61f5b6f3 | 254 | unsigned char *out2, int olen) |
58964a49 | 255 | { |
81025661 DSH |
256 | int len,i,idx,count; |
257 | const unsigned char *S1; | |
258 | long m; | |
259 | const EVP_MD *md; | |
72240ab3 | 260 | int ret = 0; |
81025661 | 261 | |
761772d7 | 262 | /* Count number of digests and partition sec evenly */ |
81025661 DSH |
263 | count=0; |
264 | for (idx=0;ssl_get_handshake_digest(idx,&m,&md);idx++) { | |
265 | if ((m<<TLS1_PRF_DGST_SHIFT) & digest_mask) count++; | |
266 | } | |
267 | len=slen/count; | |
f93b03a5 DSH |
268 | if (count == 1) |
269 | slen = 0; | |
58964a49 | 270 | S1=sec; |
81025661 DSH |
271 | memset(out1,0,olen); |
272 | for (idx=0;ssl_get_handshake_digest(idx,&m,&md);idx++) { | |
273 | if ((m<<TLS1_PRF_DGST_SHIFT) & digest_mask) { | |
274 | if (!md) { | |
275 | SSLerr(SSL_F_TLS1_PRF, | |
276 | SSL_R_UNSUPPORTED_DIGEST_TYPE); | |
72240ab3 | 277 | goto err; |
81025661 | 278 | } |
72240ab3 DSH |
279 | if (!tls1_P_hash(md ,S1,len+(slen&1), |
280 | seed1,seed1_len,seed2,seed2_len,seed3,seed3_len,seed4,seed4_len,seed5,seed5_len, | |
281 | out2,olen)) | |
282 | goto err; | |
81025661 DSH |
283 | S1+=len; |
284 | for (i=0; i<olen; i++) | |
285 | { | |
286 | out1[i]^=out2[i]; | |
287 | } | |
288 | } | |
58964a49 | 289 | } |
72240ab3 DSH |
290 | ret = 1; |
291 | err: | |
292 | return ret; | |
81025661 | 293 | } |
72240ab3 | 294 | static int tls1_generate_key_block(SSL *s, unsigned char *km, |
6b691a5c | 295 | unsigned char *tmp, int num) |
58964a49 | 296 | { |
72240ab3 | 297 | int ret; |
9472baae | 298 | ret = tls1_PRF(ssl_get_algorithm2(s), |
761772d7 BM |
299 | TLS_MD_KEY_EXPANSION_CONST,TLS_MD_KEY_EXPANSION_CONST_SIZE, |
300 | s->s3->server_random,SSL3_RANDOM_SIZE, | |
301 | s->s3->client_random,SSL3_RANDOM_SIZE, | |
302 | NULL,0,NULL,0, | |
e4aac1cb BL |
303 | s->session->master_key,s->session->master_key_length, |
304 | km,tmp,num); | |
f9b3bff6 RL |
305 | #ifdef KSSL_DEBUG |
306 | printf("tls1_generate_key_block() ==> %d byte master_key =\n\t", | |
307 | s->session->master_key_length); | |
308 | { | |
309 | int i; | |
310 | for (i=0; i < s->session->master_key_length; i++) | |
311 | { | |
312 | printf("%02X", s->session->master_key[i]); | |
313 | } | |
314 | printf("\n"); } | |
315 | #endif /* KSSL_DEBUG */ | |
72240ab3 | 316 | return ret; |
58964a49 RE |
317 | } |
318 | ||
6b691a5c | 319 | int tls1_change_cipher_state(SSL *s, int which) |
58964a49 | 320 | { |
61f5b6f3 | 321 | static const unsigned char empty[]=""; |
e9735943 | 322 | unsigned char *p,*mac_secret; |
761772d7 | 323 | unsigned char *exp_label; |
58964a49 RE |
324 | unsigned char tmp1[EVP_MAX_KEY_LENGTH]; |
325 | unsigned char tmp2[EVP_MAX_KEY_LENGTH]; | |
326 | unsigned char iv1[EVP_MAX_IV_LENGTH*2]; | |
327 | unsigned char iv2[EVP_MAX_IV_LENGTH*2]; | |
e9735943 | 328 | unsigned char *ms,*key,*iv; |
58964a49 RE |
329 | int client_write; |
330 | EVP_CIPHER_CTX *dd; | |
e778802f | 331 | const EVP_CIPHER *c; |
09b6c2ef | 332 | #ifndef OPENSSL_NO_COMP |
e778802f | 333 | const SSL_COMP *comp; |
09b6c2ef | 334 | #endif |
e778802f | 335 | const EVP_MD *m; |
b948e2c5 DSH |
336 | int mac_type; |
337 | int *mac_secret_size; | |
338 | EVP_MD_CTX *mac_ctx; | |
339 | EVP_PKEY *mac_key; | |
28797374 BM |
340 | int is_export,n,i,j,k,exp_label_len,cl; |
341 | int reuse_dd = 0; | |
58964a49 | 342 | |
28797374 | 343 | is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher); |
58964a49 RE |
344 | c=s->s3->tmp.new_sym_enc; |
345 | m=s->s3->tmp.new_hash; | |
b948e2c5 | 346 | mac_type = s->s3->tmp.new_mac_pkey_type; |
09b6c2ef | 347 | #ifndef OPENSSL_NO_COMP |
58964a49 | 348 | comp=s->s3->tmp.new_compression; |
09b6c2ef | 349 | #endif |
58964a49 | 350 | |
f9b3bff6 RL |
351 | #ifdef KSSL_DEBUG |
352 | printf("tls1_change_cipher_state(which= %d) w/\n", which); | |
52b8dad8 BM |
353 | printf("\talg= %ld/%ld, comp= %p\n", |
354 | s->s3->tmp.new_cipher->algorithm_mkey, | |
355 | s->s3->tmp.new_cipher->algorithm_auth, | |
6343829a GT |
356 | comp); |
357 | printf("\tevp_cipher == %p ==? &d_cbc_ede_cipher3\n", c); | |
358 | printf("\tevp_cipher: nid, blksz= %d, %d, keylen=%d, ivlen=%d\n", | |
359 | c->nid,c->block_size,c->key_len,c->iv_len); | |
f9b3bff6 RL |
360 | printf("\tkey_block: len= %d, data= ", s->s3->tmp.key_block_length); |
361 | { | |
6343829a GT |
362 | int i; |
363 | for (i=0; i<s->s3->tmp.key_block_length; i++) | |
364 | printf("%02x", key_block[i]); printf("\n"); | |
f9b3bff6 RL |
365 | } |
366 | #endif /* KSSL_DEBUG */ | |
367 | ||
58964a49 RE |
368 | if (which & SSL3_CC_READ) |
369 | { | |
b948e2c5 DSH |
370 | if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC) |
371 | s->mac_flags |= SSL_MAC_FLAG_READ_MAC_STREAM; | |
90f3e4cf | 372 | else |
b948e2c5 DSH |
373 | s->mac_flags &= ~SSL_MAC_FLAG_READ_MAC_STREAM; |
374 | ||
28797374 BM |
375 | if (s->enc_read_ctx != NULL) |
376 | reuse_dd = 1; | |
377 | else if ((s->enc_read_ctx=OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL) | |
58964a49 | 378 | goto err; |
cc684e33 NL |
379 | else |
380 | /* make sure it's intialized in case we exit later with an error */ | |
381 | EVP_CIPHER_CTX_init(s->enc_read_ctx); | |
58964a49 | 382 | dd= s->enc_read_ctx; |
b948e2c5 | 383 | mac_ctx=ssl_replace_hash(&s->read_hash,NULL); |
09b6c2ef | 384 | #ifndef OPENSSL_NO_COMP |
dfeab068 RE |
385 | if (s->expand != NULL) |
386 | { | |
387 | COMP_CTX_free(s->expand); | |
388 | s->expand=NULL; | |
389 | } | |
390 | if (comp != NULL) | |
391 | { | |
413c4f45 | 392 | s->expand=COMP_CTX_new(comp->method); |
dfeab068 RE |
393 | if (s->expand == NULL) |
394 | { | |
395 | SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,SSL_R_COMPRESSION_LIBRARY_ERROR); | |
396 | goto err2; | |
397 | } | |
413c4f45 MC |
398 | if (s->s3->rrec.comp == NULL) |
399 | s->s3->rrec.comp=(unsigned char *) | |
26a3a48d | 400 | OPENSSL_malloc(SSL3_RT_MAX_ENCRYPTED_LENGTH); |
dfeab068 RE |
401 | if (s->s3->rrec.comp == NULL) |
402 | goto err; | |
403 | } | |
09b6c2ef | 404 | #endif |
36d16f8e BL |
405 | /* this is done by dtls1_reset_seq_numbers for DTLS1_VERSION */ |
406 | if (s->version != DTLS1_VERSION) | |
407 | memset(&(s->s3->read_sequence[0]),0,8); | |
58964a49 | 408 | mac_secret= &(s->s3->read_mac_secret[0]); |
b948e2c5 | 409 | mac_secret_size=&(s->s3->read_mac_secret_size); |
58964a49 RE |
410 | } |
411 | else | |
412 | { | |
b948e2c5 DSH |
413 | if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC) |
414 | s->mac_flags |= SSL_MAC_FLAG_WRITE_MAC_STREAM; | |
415 | else | |
416 | s->mac_flags &= ~SSL_MAC_FLAG_WRITE_MAC_STREAM; | |
28797374 BM |
417 | if (s->enc_write_ctx != NULL) |
418 | reuse_dd = 1; | |
419 | else if ((s->enc_write_ctx=OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL) | |
420 | goto err; | |
cc684e33 NL |
421 | else |
422 | /* make sure it's intialized in case we exit later with an error */ | |
423 | EVP_CIPHER_CTX_init(s->enc_write_ctx); | |
58964a49 | 424 | dd= s->enc_write_ctx; |
b948e2c5 | 425 | mac_ctx = ssl_replace_hash(&s->write_hash,NULL); |
09b6c2ef | 426 | #ifndef OPENSSL_NO_COMP |
dfeab068 RE |
427 | if (s->compress != NULL) |
428 | { | |
429 | COMP_CTX_free(s->compress); | |
430 | s->compress=NULL; | |
431 | } | |
432 | if (comp != NULL) | |
433 | { | |
413c4f45 | 434 | s->compress=COMP_CTX_new(comp->method); |
dfeab068 RE |
435 | if (s->compress == NULL) |
436 | { | |
437 | SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,SSL_R_COMPRESSION_LIBRARY_ERROR); | |
438 | goto err2; | |
439 | } | |
440 | } | |
09b6c2ef | 441 | #endif |
36d16f8e BL |
442 | /* this is done by dtls1_reset_seq_numbers for DTLS1_VERSION */ |
443 | if (s->version != DTLS1_VERSION) | |
444 | memset(&(s->s3->write_sequence[0]),0,8); | |
58964a49 | 445 | mac_secret= &(s->s3->write_mac_secret[0]); |
b948e2c5 | 446 | mac_secret_size = &(s->s3->write_mac_secret_size); |
58964a49 RE |
447 | } |
448 | ||
28797374 BM |
449 | if (reuse_dd) |
450 | EVP_CIPHER_CTX_cleanup(dd); | |
58964a49 RE |
451 | |
452 | p=s->s3->tmp.key_block; | |
b948e2c5 DSH |
453 | i=*mac_secret_size=s->s3->tmp.new_mac_secret_size; |
454 | ||
436d318c | 455 | cl=EVP_CIPHER_key_length(c); |
28797374 BM |
456 | j=is_export ? (cl < SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher) ? |
457 | cl : SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher)) : cl; | |
436d318c | 458 | /* Was j=(exp)?5:EVP_CIPHER_key_length(c); */ |
aed53d6c DSH |
459 | /* If GCM mode only part of IV comes from PRF */ |
460 | if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE) | |
461 | k = EVP_GCM_TLS_FIXED_IV_LEN; | |
462 | else | |
463 | k=EVP_CIPHER_iv_length(c); | |
58964a49 RE |
464 | if ( (which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) || |
465 | (which == SSL3_CHANGE_CIPHER_SERVER_READ)) | |
466 | { | |
467 | ms= &(p[ 0]); n=i+i; | |
468 | key= &(p[ n]); n+=j+j; | |
469 | iv= &(p[ n]); n+=k+k; | |
470 | exp_label=(unsigned char *)TLS_MD_CLIENT_WRITE_KEY_CONST; | |
471 | exp_label_len=TLS_MD_CLIENT_WRITE_KEY_CONST_SIZE; | |
472 | client_write=1; | |
473 | } | |
474 | else | |
475 | { | |
476 | n=i; | |
477 | ms= &(p[ n]); n+=i+j; | |
478 | key= &(p[ n]); n+=j+k; | |
479 | iv= &(p[ n]); n+=k; | |
480 | exp_label=(unsigned char *)TLS_MD_SERVER_WRITE_KEY_CONST; | |
481 | exp_label_len=TLS_MD_SERVER_WRITE_KEY_CONST_SIZE; | |
482 | client_write=0; | |
483 | } | |
484 | ||
485 | if (n > s->s3->tmp.key_block_length) | |
486 | { | |
5277d7cb | 487 | SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,ERR_R_INTERNAL_ERROR); |
58964a49 RE |
488 | goto err2; |
489 | } | |
490 | ||
491 | memcpy(mac_secret,ms,i); | |
90f3e4cf AP |
492 | |
493 | if (!(EVP_CIPHER_flags(c)&EVP_CIPH_FLAG_AEAD_CIPHER)) | |
494 | { | |
495 | mac_key = EVP_PKEY_new_mac_key(mac_type, NULL, | |
496 | mac_secret,*mac_secret_size); | |
497 | EVP_DigestSignInit(mac_ctx,NULL,m,NULL,mac_key); | |
498 | EVP_PKEY_free(mac_key); | |
499 | } | |
58964a49 RE |
500 | #ifdef TLS_DEBUG |
501 | printf("which = %04X\nmac key=",which); | |
502 | { int z; for (z=0; z<i; z++) printf("%02X%c",ms[z],((z+1)%16)?' ':'\n'); } | |
503 | #endif | |
28797374 | 504 | if (is_export) |
58964a49 RE |
505 | { |
506 | /* In here I set both the read and write key/iv to the | |
507 | * same value since only the correct one will be used :-). | |
508 | */ | |
9472baae | 509 | if (!tls1_PRF(ssl_get_algorithm2(s), |
72240ab3 DSH |
510 | exp_label,exp_label_len, |
511 | s->s3->client_random,SSL3_RANDOM_SIZE, | |
512 | s->s3->server_random,SSL3_RANDOM_SIZE, | |
513 | NULL,0,NULL,0, | |
514 | key,j,tmp1,tmp2,EVP_CIPHER_key_length(c))) | |
515 | goto err2; | |
58964a49 RE |
516 | key=tmp1; |
517 | ||
518 | if (k > 0) | |
519 | { | |
9472baae | 520 | if (!tls1_PRF(ssl_get_algorithm2(s), |
72240ab3 DSH |
521 | TLS_MD_IV_BLOCK_CONST,TLS_MD_IV_BLOCK_CONST_SIZE, |
522 | s->s3->client_random,SSL3_RANDOM_SIZE, | |
523 | s->s3->server_random,SSL3_RANDOM_SIZE, | |
524 | NULL,0,NULL,0, | |
525 | empty,0,iv1,iv2,k*2)) | |
526 | goto err2; | |
58964a49 RE |
527 | if (client_write) |
528 | iv=iv1; | |
529 | else | |
530 | iv= &(iv1[k]); | |
531 | } | |
532 | } | |
533 | ||
534 | s->session->key_arg_length=0; | |
f9b3bff6 RL |
535 | #ifdef KSSL_DEBUG |
536 | { | |
6343829a | 537 | int i; |
581f1c84 | 538 | printf("EVP_CipherInit_ex(dd,c,key=,iv=,which)\n"); |
6343829a | 539 | printf("\tkey= "); for (i=0; i<c->key_len; i++) printf("%02x", key[i]); |
f9b3bff6 | 540 | printf("\n"); |
6343829a | 541 | printf("\t iv= "); for (i=0; i<c->iv_len; i++) printf("%02x", iv[i]); |
f9b3bff6 RL |
542 | printf("\n"); |
543 | } | |
544 | #endif /* KSSL_DEBUG */ | |
58964a49 | 545 | |
aed53d6c DSH |
546 | if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE) |
547 | { | |
548 | EVP_CipherInit_ex(dd,c,NULL,key,NULL,(which & SSL3_CC_WRITE)); | |
549 | EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_GCM_SET_IV_FIXED, k, iv); | |
550 | } | |
551 | else | |
552 | EVP_CipherInit_ex(dd,c,NULL,key,iv,(which & SSL3_CC_WRITE)); | |
90f3e4cf AP |
553 | |
554 | /* Needed for "composite" AEADs, such as RC4-HMAC-MD5 */ | |
555 | if ((EVP_CIPHER_flags(c)&EVP_CIPH_FLAG_AEAD_CIPHER) && *mac_secret_size) | |
556 | EVP_CIPHER_CTX_ctrl(dd,EVP_CTRL_AEAD_SET_MAC_KEY, | |
557 | *mac_secret_size,mac_secret); | |
558 | ||
58964a49 RE |
559 | #ifdef TLS_DEBUG |
560 | printf("which = %04X\nkey=",which); | |
561 | { int z; for (z=0; z<EVP_CIPHER_key_length(c); z++) printf("%02X%c",key[z],((z+1)%16)?' ':'\n'); } | |
562 | printf("\niv="); | |
563 | { int z; for (z=0; z<k; z++) printf("%02X%c",iv[z],((z+1)%16)?' ':'\n'); } | |
564 | printf("\n"); | |
565 | #endif | |
566 | ||
4579924b RL |
567 | OPENSSL_cleanse(tmp1,sizeof(tmp1)); |
568 | OPENSSL_cleanse(tmp2,sizeof(tmp1)); | |
569 | OPENSSL_cleanse(iv1,sizeof(iv1)); | |
570 | OPENSSL_cleanse(iv2,sizeof(iv2)); | |
58964a49 RE |
571 | return(1); |
572 | err: | |
573 | SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,ERR_R_MALLOC_FAILURE); | |
574 | err2: | |
575 | return(0); | |
576 | } | |
577 | ||
6b691a5c | 578 | int tls1_setup_key_block(SSL *s) |
58964a49 | 579 | { |
72240ab3 | 580 | unsigned char *p1,*p2=NULL; |
e778802f BL |
581 | const EVP_CIPHER *c; |
582 | const EVP_MD *hash; | |
06ab81f9 | 583 | int num; |
413c4f45 | 584 | SSL_COMP *comp; |
b948e2c5 | 585 | int mac_type= NID_undef,mac_secret_size=0; |
72240ab3 | 586 | int ret=0; |
58964a49 | 587 | |
f9b3bff6 RL |
588 | #ifdef KSSL_DEBUG |
589 | printf ("tls1_setup_key_block()\n"); | |
590 | #endif /* KSSL_DEBUG */ | |
591 | ||
58964a49 RE |
592 | if (s->s3->tmp.key_block_length != 0) |
593 | return(1); | |
594 | ||
b948e2c5 | 595 | if (!ssl_cipher_get_evp(s->session,&c,&hash,&mac_type,&mac_secret_size,&comp)) |
58964a49 RE |
596 | { |
597 | SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,SSL_R_CIPHER_OR_HASH_UNAVAILABLE); | |
598 | return(0); | |
599 | } | |
600 | ||
601 | s->s3->tmp.new_sym_enc=c; | |
602 | s->s3->tmp.new_hash=hash; | |
b948e2c5 DSH |
603 | s->s3->tmp.new_mac_pkey_type = mac_type; |
604 | s->s3->tmp.new_mac_secret_size = mac_secret_size; | |
605 | num=EVP_CIPHER_key_length(c)+mac_secret_size+EVP_CIPHER_iv_length(c); | |
58964a49 RE |
606 | num*=2; |
607 | ||
608 | ssl3_cleanup_key_block(s); | |
609 | ||
26a3a48d | 610 | if ((p1=(unsigned char *)OPENSSL_malloc(num)) == NULL) |
72240ab3 DSH |
611 | { |
612 | SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,ERR_R_MALLOC_FAILURE); | |
58964a49 | 613 | goto err; |
72240ab3 | 614 | } |
58964a49 RE |
615 | |
616 | s->s3->tmp.key_block_length=num; | |
617 | s->s3->tmp.key_block=p1; | |
618 | ||
72240ab3 DSH |
619 | if ((p2=(unsigned char *)OPENSSL_malloc(num)) == NULL) |
620 | { | |
621 | SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,ERR_R_MALLOC_FAILURE); | |
622 | goto err; | |
623 | } | |
58964a49 RE |
624 | |
625 | #ifdef TLS_DEBUG | |
626 | printf("client random\n"); | |
627 | { int z; for (z=0; z<SSL3_RANDOM_SIZE; z++) printf("%02X%c",s->s3->client_random[z],((z+1)%16)?' ':'\n'); } | |
628 | printf("server random\n"); | |
629 | { int z; for (z=0; z<SSL3_RANDOM_SIZE; z++) printf("%02X%c",s->s3->server_random[z],((z+1)%16)?' ':'\n'); } | |
630 | printf("pre-master\n"); | |
631 | { int z; for (z=0; z<s->session->master_key_length; z++) printf("%02X%c",s->session->master_key[z],((z+1)%16)?' ':'\n'); } | |
632 | #endif | |
72240ab3 DSH |
633 | if (!tls1_generate_key_block(s,p1,p2,num)) |
634 | goto err; | |
58964a49 RE |
635 | #ifdef TLS_DEBUG |
636 | printf("\nkey block\n"); | |
637 | { int z; for (z=0; z<num; z++) printf("%02X%c",p1[z],((z+1)%16)?' ':'\n'); } | |
638 | #endif | |
639 | ||
28566b49 DSH |
640 | if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS) |
641 | && s->method->version <= TLS1_VERSION) | |
c21506ba BM |
642 | { |
643 | /* enable vulnerability countermeasure for CBC ciphers with | |
644 | * known-IV problem (http://www.openssl.org/~bodo/tls-cbc.txt) | |
645 | */ | |
646 | s->s3->need_empty_fragments = 1; | |
647 | ||
d1d0be3c BM |
648 | if (s->session->cipher != NULL) |
649 | { | |
52b8dad8 | 650 | if (s->session->cipher->algorithm_enc == SSL_eNULL) |
d1d0be3c BM |
651 | s->s3->need_empty_fragments = 0; |
652 | ||
653 | #ifndef OPENSSL_NO_RC4 | |
52b8dad8 | 654 | if (s->session->cipher->algorithm_enc == SSL_RC4) |
d1d0be3c | 655 | s->s3->need_empty_fragments = 0; |
82b0bf0b | 656 | #endif |
d1d0be3c | 657 | } |
c21506ba | 658 | } |
82b0bf0b | 659 | |
72240ab3 | 660 | ret = 1; |
58964a49 | 661 | err: |
72240ab3 DSH |
662 | if (p2) |
663 | { | |
664 | OPENSSL_cleanse(p2,num); | |
665 | OPENSSL_free(p2); | |
666 | } | |
667 | return(ret); | |
58964a49 RE |
668 | } |
669 | ||
6b691a5c | 670 | int tls1_enc(SSL *s, int send) |
58964a49 RE |
671 | { |
672 | SSL3_RECORD *rec; | |
673 | EVP_CIPHER_CTX *ds; | |
674 | unsigned long l; | |
90f3e4cf | 675 | int bs,i,ii,j,k,pad=0; |
e778802f | 676 | const EVP_CIPHER *enc; |
58964a49 RE |
677 | |
678 | if (send) | |
679 | { | |
b948e2c5 | 680 | if (EVP_MD_CTX_md(s->write_hash)) |
0eab41fb | 681 | { |
90f3e4cf | 682 | int n=EVP_MD_CTX_size(s->write_hash); |
0eab41fb BL |
683 | OPENSSL_assert(n >= 0); |
684 | } | |
58964a49 RE |
685 | ds=s->enc_write_ctx; |
686 | rec= &(s->s3->wrec); | |
687 | if (s->enc_write_ctx == NULL) | |
dfeab068 | 688 | enc=NULL; |
58964a49 | 689 | else |
b4b15f68 DSH |
690 | { |
691 | int ivlen; | |
58964a49 | 692 | enc=EVP_CIPHER_CTX_cipher(s->enc_write_ctx); |
b4b15f68 | 693 | /* For TLSv1.1 and later explicit IV */ |
1a8ecda3 DSH |
694 | if (s->version >= TLS1_1_VERSION |
695 | && EVP_CIPHER_mode(enc) == EVP_CIPH_CBC_MODE) | |
b4b15f68 DSH |
696 | ivlen = EVP_CIPHER_iv_length(enc); |
697 | else | |
698 | ivlen = 0; | |
699 | if (ivlen > 1) | |
700 | { | |
701 | if ( rec->data != rec->input) | |
90f3e4cf AP |
702 | /* we can't write into the input stream: |
703 | * Can this ever happen?? (steve) | |
704 | */ | |
705 | fprintf(stderr, | |
706 | "%s:%d: rec->data != rec->input\n", | |
707 | __FILE__, __LINE__); | |
b4b15f68 DSH |
708 | else if (RAND_bytes(rec->input, ivlen) <= 0) |
709 | return -1; | |
710 | } | |
711 | } | |
58964a49 RE |
712 | } |
713 | else | |
714 | { | |
b948e2c5 | 715 | if (EVP_MD_CTX_md(s->read_hash)) |
0eab41fb | 716 | { |
90f3e4cf | 717 | int n=EVP_MD_CTX_size(s->read_hash); |
0eab41fb BL |
718 | OPENSSL_assert(n >= 0); |
719 | } | |
58964a49 RE |
720 | ds=s->enc_read_ctx; |
721 | rec= &(s->s3->rrec); | |
722 | if (s->enc_read_ctx == NULL) | |
dfeab068 | 723 | enc=NULL; |
58964a49 | 724 | else |
58964a49 | 725 | enc=EVP_CIPHER_CTX_cipher(s->enc_read_ctx); |
58964a49 RE |
726 | } |
727 | ||
f9b3bff6 RL |
728 | #ifdef KSSL_DEBUG |
729 | printf("tls1_enc(%d)\n", send); | |
730 | #endif /* KSSL_DEBUG */ | |
731 | ||
58964a49 | 732 | if ((s->session == NULL) || (ds == NULL) || |
dfeab068 | 733 | (enc == NULL)) |
58964a49 | 734 | { |
44e48abc | 735 | memmove(rec->data,rec->input,rec->length); |
58964a49 RE |
736 | rec->input=rec->data; |
737 | } | |
738 | else | |
739 | { | |
740 | l=rec->length; | |
741 | bs=EVP_CIPHER_block_size(ds->cipher); | |
742 | ||
90f3e4cf AP |
743 | if (EVP_CIPHER_flags(ds->cipher)&EVP_CIPH_FLAG_AEAD_CIPHER) |
744 | { | |
745 | unsigned char buf[13],*seq; | |
746 | ||
747 | seq = send?s->s3->write_sequence:s->s3->read_sequence; | |
748 | ||
749 | if (s->version == DTLS1_VERSION || s->version == DTLS1_BAD_VER) | |
750 | { | |
751 | unsigned char dtlsseq[9],*p=dtlsseq; | |
752 | ||
753 | s2n(send?s->d1->w_epoch:s->d1->r_epoch,p); | |
754 | memcpy(p,&seq[2],6); | |
755 | memcpy(buf,dtlsseq,8); | |
756 | } | |
757 | else | |
758 | { | |
759 | memcpy(buf,seq,8); | |
760 | for (i=7; i>=0; i--) /* increment */ | |
761 | { | |
762 | ++seq[i]; | |
763 | if (seq[i] != 0) break; | |
764 | } | |
765 | } | |
766 | ||
767 | buf[8]=rec->type; | |
768 | buf[9]=(unsigned char)(s->version>>8); | |
769 | buf[10]=(unsigned char)(s->version); | |
770 | buf[11]=rec->length>>8; | |
771 | buf[12]=rec->length&0xff; | |
772 | pad=EVP_CIPHER_CTX_ctrl(ds,EVP_CTRL_AEAD_TLS1_AAD,13,buf); | |
773 | if (send) | |
774 | { | |
775 | l+=pad; | |
776 | rec->length+=pad; | |
777 | } | |
778 | } | |
779 | else if ((bs != 1) && send) | |
58964a49 RE |
780 | { |
781 | i=bs-((int)l%bs); | |
782 | ||
783 | /* Add weird padding of upto 256 bytes */ | |
784 | ||
785 | /* we need to add 'i' padding bytes of value j */ | |
786 | j=i-1; | |
787 | if (s->options & SSL_OP_TLS_BLOCK_PADDING_BUG) | |
788 | { | |
789 | if (s->s3->flags & TLS1_FLAGS_TLS_PADDING_BUG) | |
790 | j++; | |
791 | } | |
792 | for (k=(int)l; k<(int)(l+i); k++) | |
793 | rec->input[k]=j; | |
794 | l+=i; | |
795 | rec->length+=i; | |
5b9d0995 DSH |
796 | if (rec->type == SSL3_RT_APPLICATION_DATA) |
797 | { | |
798 | memset(rec->input, 63, 64); | |
799 | rec->length = 64; | |
800 | l = 64; | |
801 | } | |
58964a49 RE |
802 | } |
803 | ||
f9b3bff6 RL |
804 | #ifdef KSSL_DEBUG |
805 | { | |
45442167 | 806 | unsigned long ui; |
f9b3bff6 | 807 | printf("EVP_Cipher(ds=%p,rec->data=%p,rec->input=%p,l=%ld) ==>\n", |
6343829a GT |
808 | ds,rec->data,rec->input,l); |
809 | printf("\tEVP_CIPHER_CTX: %d buf_len, %d key_len [%d %d], %d iv_len\n", | |
810 | ds->buf_len, ds->cipher->key_len, | |
811 | DES_KEY_SZ, DES_SCHEDULE_SZ, | |
812 | ds->cipher->iv_len); | |
f9b3bff6 RL |
813 | printf("\t\tIV: "); |
814 | for (i=0; i<ds->cipher->iv_len; i++) printf("%02X", ds->iv[i]); | |
815 | printf("\n"); | |
816 | printf("\trec->input="); | |
45442167 | 817 | for (ui=0; ui<l; ui++) printf(" %02x", rec->input[ui]); |
f9b3bff6 RL |
818 | printf("\n"); |
819 | } | |
820 | #endif /* KSSL_DEBUG */ | |
821 | ||
285b4275 BM |
822 | if (!send) |
823 | { | |
824 | if (l == 0 || l%bs != 0) | |
825 | { | |
4577b38d DSH |
826 | if (s->version >= TLS1_1_VERSION) |
827 | return -1; | |
285b4275 | 828 | SSLerr(SSL_F_TLS1_ENC,SSL_R_BLOCK_CIPHER_PAD_IS_WRONG); |
ee60d9fb BM |
829 | ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECRYPTION_FAILED); |
830 | return 0; | |
285b4275 BM |
831 | } |
832 | } | |
833 | ||
9cc42cb0 AP |
834 | i = EVP_Cipher(ds,rec->data,rec->input,l); |
835 | if ((EVP_CIPHER_flags(ds->cipher)&EVP_CIPH_FLAG_CUSTOM_CIPHER) | |
836 | ?(i<0) | |
837 | :(i==0)) | |
90f3e4cf | 838 | return -1; /* AEAD can fail to verify MAC */ |
aed53d6c DSH |
839 | if (EVP_CIPHER_mode(enc) == EVP_CIPH_GCM_MODE && !send) |
840 | { | |
841 | rec->data += EVP_GCM_TLS_EXPLICIT_IV_LEN; | |
842 | rec->input += EVP_GCM_TLS_EXPLICIT_IV_LEN; | |
843 | rec->length -= EVP_GCM_TLS_EXPLICIT_IV_LEN; | |
844 | } | |
58964a49 | 845 | |
f9b3bff6 RL |
846 | #ifdef KSSL_DEBUG |
847 | { | |
6343829a | 848 | unsigned long i; |
f9b3bff6 | 849 | printf("\trec->data="); |
6343829a GT |
850 | for (i=0; i<l; i++) |
851 | printf(" %02x", rec->data[i]); printf("\n"); | |
f9b3bff6 RL |
852 | } |
853 | #endif /* KSSL_DEBUG */ | |
854 | ||
58964a49 RE |
855 | if ((bs != 1) && !send) |
856 | { | |
285b4275 | 857 | ii=i=rec->data[l-1]; /* padding_length */ |
58964a49 | 858 | i++; |
5cda6c45 DSH |
859 | /* NB: if compression is in operation the first packet |
860 | * may not be of even length so the padding bug check | |
861 | * cannot be performed. This bug workaround has been | |
862 | * around since SSLeay so hopefully it is either fixed | |
863 | * now or no buggy implementation supports compression | |
864 | * [steve] | |
865 | */ | |
866 | if ( (s->options&SSL_OP_TLS_BLOCK_PADDING_BUG) | |
867 | && !s->expand) | |
58964a49 RE |
868 | { |
869 | /* First packet is even in size, so check */ | |
870 | if ((memcmp(s->s3->read_sequence, | |
871 | "\0\0\0\0\0\0\0\0",8) == 0) && !(ii & 1)) | |
872 | s->s3->flags|=TLS1_FLAGS_TLS_PADDING_BUG; | |
873 | if (s->s3->flags & TLS1_FLAGS_TLS_PADDING_BUG) | |
874 | i--; | |
875 | } | |
285b4275 BM |
876 | /* TLS 1.0 does not bound the number of padding bytes by the block size. |
877 | * All of them must have value 'padding_length'. */ | |
58964a49 RE |
878 | if (i > (int)rec->length) |
879 | { | |
ee60d9fb BM |
880 | /* Incorrect padding. SSLerr() and ssl3_alert are done |
881 | * by caller: we don't want to reveal whether this is | |
965b6dad BM |
882 | * a decryption error or a MAC verification failure |
883 | * (see http://www.openssl.org/~bodo/tls-cbc.txt) */ | |
ee60d9fb | 884 | return -1; |
58964a49 RE |
885 | } |
886 | for (j=(int)(l-i); j<(int)l; j++) | |
887 | { | |
888 | if (rec->data[j] != ii) | |
889 | { | |
ee60d9fb BM |
890 | /* Incorrect padding */ |
891 | return -1; | |
58964a49 RE |
892 | } |
893 | } | |
b4b15f68 | 894 | rec->length -=i; |
1a8ecda3 DSH |
895 | if (s->version >= TLS1_1_VERSION |
896 | && EVP_CIPHER_CTX_mode(ds) == EVP_CIPH_CBC_MODE) | |
b4b15f68 | 897 | { |
5b9d0995 DSH |
898 | if (bs > (int)rec->length) |
899 | return -1; | |
b4b15f68 DSH |
900 | rec->data += bs; /* skip the explicit IV */ |
901 | rec->input += bs; | |
902 | rec->length -= bs; | |
903 | } | |
58964a49 | 904 | } |
90f3e4cf AP |
905 | if (pad && !send) |
906 | rec->length -= pad; | |
58964a49 RE |
907 | } |
908 | return(1); | |
909 | } | |
81025661 | 910 | int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *out) |
58964a49 RE |
911 | { |
912 | unsigned int ret; | |
81025661 DSH |
913 | EVP_MD_CTX ctx, *d=NULL; |
914 | int i; | |
915 | ||
916 | if (s->s3->handshake_buffer) | |
6ba71a71 BL |
917 | if (!ssl3_digest_cached_records(s)) |
918 | return 0; | |
919 | ||
81025661 DSH |
920 | for (i=0;i<SSL_MAX_DIGEST;i++) |
921 | { | |
922 | if (s->s3->handshake_dgst[i]&&EVP_MD_CTX_type(s->s3->handshake_dgst[i])==md_nid) | |
923 | { | |
924 | d=s->s3->handshake_dgst[i]; | |
925 | break; | |
926 | } | |
927 | } | |
928 | if (!d) { | |
929 | SSLerr(SSL_F_TLS1_CERT_VERIFY_MAC,SSL_R_NO_REQUIRED_DIGEST); | |
930 | return 0; | |
931 | } | |
58964a49 | 932 | |
dbad1690 | 933 | EVP_MD_CTX_init(&ctx); |
81025661 | 934 | EVP_MD_CTX_copy_ex(&ctx,d); |
20d2186c | 935 | EVP_DigestFinal_ex(&ctx,out,&ret); |
dbad1690 | 936 | EVP_MD_CTX_cleanup(&ctx); |
58964a49 RE |
937 | return((int)ret); |
938 | } | |
939 | ||
81025661 | 940 | int tls1_final_finish_mac(SSL *s, |
245206ea | 941 | const char *str, int slen, unsigned char *out) |
58964a49 RE |
942 | { |
943 | unsigned int i; | |
944 | EVP_MD_CTX ctx; | |
761772d7 | 945 | unsigned char buf[2*EVP_MAX_MD_SIZE]; |
58964a49 | 946 | unsigned char *q,buf2[12]; |
81025661 DSH |
947 | int idx; |
948 | long mask; | |
761772d7 | 949 | int err=0; |
81025661 | 950 | const EVP_MD *md; |
58964a49 RE |
951 | |
952 | q=buf; | |
58964a49 | 953 | |
81025661 | 954 | if (s->s3->handshake_buffer) |
6ba71a71 BL |
955 | if (!ssl3_digest_cached_records(s)) |
956 | return 0; | |
957 | ||
958 | EVP_MD_CTX_init(&ctx); | |
81025661 | 959 | |
761772d7 BM |
960 | for (idx=0;ssl_get_handshake_digest(idx,&mask,&md);idx++) |
961 | { | |
9472baae | 962 | if (mask & ssl_get_algorithm2(s)) |
761772d7 | 963 | { |
d7ecd422 DSH |
964 | int hashsize = EVP_MD_size(md); |
965 | if (hashsize < 0 || hashsize > (int)(sizeof buf - (size_t)(q-buf))) | |
761772d7 BM |
966 | { |
967 | /* internal error: 'buf' is too small for this cipersuite! */ | |
968 | err = 1; | |
969 | } | |
970 | else | |
971 | { | |
972 | EVP_MD_CTX_copy_ex(&ctx,s->s3->handshake_dgst[idx]); | |
973 | EVP_DigestFinal_ex(&ctx,q,&i); | |
d7ecd422 | 974 | if (i != (unsigned int)hashsize) /* can't really happen */ |
761772d7 BM |
975 | err = 1; |
976 | q+=i; | |
977 | } | |
978 | } | |
81025661 | 979 | } |
761772d7 | 980 | |
9472baae | 981 | if (!tls1_PRF(ssl_get_algorithm2(s), |
72240ab3 DSH |
982 | str,slen, buf,(int)(q-buf), NULL,0, NULL,0, NULL,0, |
983 | s->session->master_key,s->session->master_key_length, | |
984 | out,buf2,sizeof buf2)) | |
985 | err = 1; | |
dbad1690 | 986 | EVP_MD_CTX_cleanup(&ctx); |
58964a49 | 987 | |
761772d7 BM |
988 | if (err) |
989 | return 0; | |
990 | else | |
991 | return sizeof buf2; | |
58964a49 RE |
992 | } |
993 | ||
6b691a5c | 994 | int tls1_mac(SSL *ssl, unsigned char *md, int send) |
58964a49 RE |
995 | { |
996 | SSL3_RECORD *rec; | |
e9735943 | 997 | unsigned char *seq; |
b948e2c5 DSH |
998 | EVP_MD_CTX *hash; |
999 | size_t md_size; | |
58964a49 | 1000 | int i; |
b948e2c5 | 1001 | EVP_MD_CTX hmac, *mac_ctx; |
58964a49 | 1002 | unsigned char buf[5]; |
b948e2c5 | 1003 | int stream_mac = (send?(ssl->mac_flags & SSL_MAC_FLAG_WRITE_MAC_STREAM):(ssl->mac_flags&SSL_MAC_FLAG_READ_MAC_STREAM)); |
0eab41fb | 1004 | int t; |
4fe55663 | 1005 | |
58964a49 RE |
1006 | if (send) |
1007 | { | |
1008 | rec= &(ssl->s3->wrec); | |
58964a49 RE |
1009 | seq= &(ssl->s3->write_sequence[0]); |
1010 | hash=ssl->write_hash; | |
1011 | } | |
1012 | else | |
1013 | { | |
1014 | rec= &(ssl->s3->rrec); | |
58964a49 RE |
1015 | seq= &(ssl->s3->read_sequence[0]); |
1016 | hash=ssl->read_hash; | |
1017 | } | |
1018 | ||
0eab41fb BL |
1019 | t=EVP_MD_CTX_size(hash); |
1020 | OPENSSL_assert(t >= 0); | |
1021 | md_size=t; | |
58964a49 RE |
1022 | |
1023 | buf[0]=rec->type; | |
4fe55663 AP |
1024 | buf[1]=(unsigned char)(ssl->version>>8); |
1025 | buf[2]=(unsigned char)(ssl->version); | |
58964a49 RE |
1026 | buf[3]=rec->length>>8; |
1027 | buf[4]=rec->length&0xff; | |
1028 | ||
1029 | /* I should fix this up TLS TLS TLS TLS TLS XXXXXXXX */ | |
b948e2c5 DSH |
1030 | if (stream_mac) |
1031 | { | |
1032 | mac_ctx = hash; | |
1033 | } | |
1034 | else | |
1035 | { | |
1036 | EVP_MD_CTX_copy(&hmac,hash); | |
1037 | mac_ctx = &hmac; | |
4fe55663 AP |
1038 | } |
1039 | ||
b452f433 | 1040 | if (ssl->version == DTLS1_VERSION || ssl->version == DTLS1_BAD_VER) |
4fe55663 AP |
1041 | { |
1042 | unsigned char dtlsseq[8],*p=dtlsseq; | |
1043 | ||
1044 | s2n(send?ssl->d1->w_epoch:ssl->d1->r_epoch, p); | |
1045 | memcpy (p,&seq[2],6); | |
1046 | ||
1047 | EVP_DigestSignUpdate(mac_ctx,dtlsseq,8); | |
1048 | } | |
1049 | else | |
1050 | EVP_DigestSignUpdate(mac_ctx,seq,8); | |
1051 | ||
b948e2c5 DSH |
1052 | EVP_DigestSignUpdate(mac_ctx,buf,5); |
1053 | EVP_DigestSignUpdate(mac_ctx,rec->input,rec->length); | |
0eab41fb BL |
1054 | t=EVP_DigestSignFinal(mac_ctx,md,&md_size); |
1055 | OPENSSL_assert(t > 0); | |
1056 | ||
0e1dba93 | 1057 | if (!stream_mac) EVP_MD_CTX_cleanup(&hmac); |
58964a49 RE |
1058 | #ifdef TLS_DEBUG |
1059 | printf("sec="); | |
dfeab068 | 1060 | {unsigned int z; for (z=0; z<md_size; z++) printf("%02X ",mac_sec[z]); printf("\n"); } |
58964a49 RE |
1061 | printf("seq="); |
1062 | {int z; for (z=0; z<8; z++) printf("%02X ",seq[z]); printf("\n"); } | |
1063 | printf("buf="); | |
1064 | {int z; for (z=0; z<5; z++) printf("%02X ",buf[z]); printf("\n"); } | |
1065 | printf("rec="); | |
dfeab068 | 1066 | {unsigned int z; for (z=0; z<rec->length; z++) printf("%02X ",buf[z]); printf("\n"); } |
58964a49 RE |
1067 | #endif |
1068 | ||
b452f433 | 1069 | if (ssl->version != DTLS1_VERSION && ssl->version != DTLS1_BAD_VER) |
4fe55663 | 1070 | { |
36d16f8e BL |
1071 | for (i=7; i>=0; i--) |
1072 | { | |
1073 | ++seq[i]; | |
1074 | if (seq[i] != 0) break; | |
1075 | } | |
1876cc32 | 1076 | } |
58964a49 RE |
1077 | |
1078 | #ifdef TLS_DEBUG | |
dfeab068 | 1079 | {unsigned int z; for (z=0; z<md_size; z++) printf("%02X ",md[z]); printf("\n"); } |
58964a49 RE |
1080 | #endif |
1081 | return(md_size); | |
1082 | } | |
1083 | ||
6b691a5c UM |
1084 | int tls1_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p, |
1085 | int len) | |
58964a49 | 1086 | { |
58964a49 | 1087 | unsigned char buff[SSL_MAX_MASTER_KEY_LENGTH]; |
761772d7 | 1088 | const void *co = NULL, *so = NULL; |
67c8e7f4 | 1089 | int col = 0, sol = 0; |
58964a49 | 1090 | |
9472baae | 1091 | |
f9b3bff6 | 1092 | #ifdef KSSL_DEBUG |
6343829a | 1093 | printf ("tls1_generate_master_secret(%p,%p, %p, %d)\n", s,out, p,len); |
f9b3bff6 RL |
1094 | #endif /* KSSL_DEBUG */ |
1095 | ||
761772d7 BM |
1096 | #ifdef TLSEXT_TYPE_opaque_prf_input |
1097 | if (s->s3->client_opaque_prf_input != NULL && s->s3->server_opaque_prf_input != NULL && | |
1098 | s->s3->client_opaque_prf_input_len > 0 && | |
1099 | s->s3->client_opaque_prf_input_len == s->s3->server_opaque_prf_input_len) | |
1100 | { | |
1101 | co = s->s3->client_opaque_prf_input; | |
1102 | col = s->s3->server_opaque_prf_input_len; | |
1103 | so = s->s3->server_opaque_prf_input; | |
1104 | sol = s->s3->client_opaque_prf_input_len; /* must be same as col (see draft-rescorla-tls-opaque-prf-input-00.txt, section 3.1) */ | |
1105 | } | |
1106 | #endif | |
1107 | ||
9472baae | 1108 | tls1_PRF(ssl_get_algorithm2(s), |
761772d7 BM |
1109 | TLS_MD_MASTER_SECRET_CONST,TLS_MD_MASTER_SECRET_CONST_SIZE, |
1110 | s->s3->client_random,SSL3_RANDOM_SIZE, | |
1111 | co, col, | |
1112 | s->s3->server_random,SSL3_RANDOM_SIZE, | |
1113 | so, sol, | |
1114 | p,len, | |
54a656ef | 1115 | s->session->master_key,buff,sizeof buff); |
9472baae DSH |
1116 | #ifdef SSL_DEBUG |
1117 | fprintf(stderr, "Premaster Secret:\n"); | |
1118 | BIO_dump_fp(stderr, (char *)p, len); | |
1119 | fprintf(stderr, "Client Random:\n"); | |
1120 | BIO_dump_fp(stderr, (char *)s->s3->client_random, SSL3_RANDOM_SIZE); | |
1121 | fprintf(stderr, "Server Random:\n"); | |
1122 | BIO_dump_fp(stderr, (char *)s->s3->server_random, SSL3_RANDOM_SIZE); | |
1123 | fprintf(stderr, "Master Secret:\n"); | |
1124 | BIO_dump_fp(stderr, (char *)s->session->master_key, SSL3_MASTER_SECRET_SIZE); | |
1125 | #endif | |
761772d7 | 1126 | |
f9b3bff6 RL |
1127 | #ifdef KSSL_DEBUG |
1128 | printf ("tls1_generate_master_secret() complete\n"); | |
1129 | #endif /* KSSL_DEBUG */ | |
58964a49 RE |
1130 | return(SSL3_MASTER_SECRET_SIZE); |
1131 | } | |
1132 | ||
e87afb15 BL |
1133 | int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen, |
1134 | const char *label, size_t llen, const unsigned char *context, | |
1135 | size_t contextlen, int use_context) | |
b1d74291 BL |
1136 | { |
1137 | unsigned char *buff; | |
825e1a7c | 1138 | unsigned char *val = NULL; |
e87afb15 BL |
1139 | size_t vallen, currentvalpos; |
1140 | int rv; | |
b1d74291 BL |
1141 | |
1142 | #ifdef KSSL_DEBUG | |
e87afb15 | 1143 | printf ("tls1_export_keying_material(%p,%p,%d,%s,%d,%p,%d)\n", s, out, olen, label, llen, p, plen); |
b1d74291 BL |
1144 | #endif /* KSSL_DEBUG */ |
1145 | ||
1146 | buff = OPENSSL_malloc(olen); | |
1147 | if (buff == NULL) goto err2; | |
1148 | ||
1149 | /* construct PRF arguments | |
1150 | * we construct the PRF argument ourself rather than passing separate | |
1151 | * values into the TLS PRF to ensure that the concatenation of values | |
1152 | * does not create a prohibited label. | |
1153 | */ | |
1154 | vallen = llen + SSL3_RANDOM_SIZE * 2; | |
e87afb15 BL |
1155 | if (use_context) |
1156 | { | |
1157 | vallen += 2 + contextlen; | |
1158 | } | |
b1d74291 BL |
1159 | |
1160 | val = OPENSSL_malloc(vallen); | |
1161 | if (val == NULL) goto err2; | |
1162 | currentvalpos = 0; | |
1163 | memcpy(val + currentvalpos, (unsigned char *) label, llen); | |
1164 | currentvalpos += llen; | |
1165 | memcpy(val + currentvalpos, s->s3->client_random, SSL3_RANDOM_SIZE); | |
1166 | currentvalpos += SSL3_RANDOM_SIZE; | |
1167 | memcpy(val + currentvalpos, s->s3->server_random, SSL3_RANDOM_SIZE); | |
1168 | currentvalpos += SSL3_RANDOM_SIZE; | |
1169 | ||
e87afb15 BL |
1170 | if (use_context) |
1171 | { | |
1172 | val[currentvalpos] = (contextlen >> 8) & 0xff; | |
1173 | currentvalpos++; | |
1174 | val[currentvalpos] = contextlen & 0xff; | |
1175 | currentvalpos++; | |
1176 | if ((contextlen > 0) || (context != NULL)) | |
1177 | { | |
1178 | memcpy(val + currentvalpos, context, contextlen); | |
1179 | } | |
1180 | } | |
b1d74291 BL |
1181 | |
1182 | /* disallow prohibited labels | |
1183 | * note that SSL3_RANDOM_SIZE > max(prohibited label len) = | |
1184 | * 15, so size of val > max(prohibited label len) = 15 and the | |
1185 | * comparisons won't have buffer overflow | |
1186 | */ | |
43716567 | 1187 | if (memcmp(val, TLS_MD_CLIENT_FINISH_CONST, |
b1d74291 | 1188 | TLS_MD_CLIENT_FINISH_CONST_SIZE) == 0) goto err1; |
43716567 | 1189 | if (memcmp(val, TLS_MD_SERVER_FINISH_CONST, |
b1d74291 | 1190 | TLS_MD_SERVER_FINISH_CONST_SIZE) == 0) goto err1; |
43716567 | 1191 | if (memcmp(val, TLS_MD_MASTER_SECRET_CONST, |
b1d74291 | 1192 | TLS_MD_MASTER_SECRET_CONST_SIZE) == 0) goto err1; |
43716567 | 1193 | if (memcmp(val, TLS_MD_KEY_EXPANSION_CONST, |
b1d74291 BL |
1194 | TLS_MD_KEY_EXPANSION_CONST_SIZE) == 0) goto err1; |
1195 | ||
e87afb15 BL |
1196 | rv = tls1_PRF(s->s3->tmp.new_cipher->algorithm2, |
1197 | val, vallen, | |
1198 | NULL, 0, | |
1199 | NULL, 0, | |
1200 | NULL, 0, | |
1201 | NULL, 0, | |
1202 | s->session->master_key,s->session->master_key_length, | |
1203 | out,buff,olen); | |
b1d74291 BL |
1204 | |
1205 | #ifdef KSSL_DEBUG | |
1206 | printf ("tls1_export_keying_material() complete\n"); | |
1207 | #endif /* KSSL_DEBUG */ | |
b1d74291 BL |
1208 | goto ret; |
1209 | err1: | |
1210 | SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL, SSL_R_TLS_ILLEGAL_EXPORTER_LABEL); | |
1211 | rv = 0; | |
1212 | goto ret; | |
1213 | err2: | |
1214 | SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL, ERR_R_MALLOC_FAILURE); | |
1215 | rv = 0; | |
1216 | ret: | |
1217 | if (buff != NULL) OPENSSL_free(buff); | |
1218 | if (val != NULL) OPENSSL_free(val); | |
1219 | return(rv); | |
1220 | } | |
1221 | ||
6b691a5c | 1222 | int tls1_alert_code(int code) |
58964a49 RE |
1223 | { |
1224 | switch (code) | |
1225 | { | |
1226 | case SSL_AD_CLOSE_NOTIFY: return(SSL3_AD_CLOSE_NOTIFY); | |
1227 | case SSL_AD_UNEXPECTED_MESSAGE: return(SSL3_AD_UNEXPECTED_MESSAGE); | |
1228 | case SSL_AD_BAD_RECORD_MAC: return(SSL3_AD_BAD_RECORD_MAC); | |
1229 | case SSL_AD_DECRYPTION_FAILED: return(TLS1_AD_DECRYPTION_FAILED); | |
1230 | case SSL_AD_RECORD_OVERFLOW: return(TLS1_AD_RECORD_OVERFLOW); | |
1231 | case SSL_AD_DECOMPRESSION_FAILURE:return(SSL3_AD_DECOMPRESSION_FAILURE); | |
1232 | case SSL_AD_HANDSHAKE_FAILURE: return(SSL3_AD_HANDSHAKE_FAILURE); | |
1233 | case SSL_AD_NO_CERTIFICATE: return(-1); | |
1234 | case SSL_AD_BAD_CERTIFICATE: return(SSL3_AD_BAD_CERTIFICATE); | |
1235 | case SSL_AD_UNSUPPORTED_CERTIFICATE:return(SSL3_AD_UNSUPPORTED_CERTIFICATE); | |
1236 | case SSL_AD_CERTIFICATE_REVOKED:return(SSL3_AD_CERTIFICATE_REVOKED); | |
1237 | case SSL_AD_CERTIFICATE_EXPIRED:return(SSL3_AD_CERTIFICATE_EXPIRED); | |
1238 | case SSL_AD_CERTIFICATE_UNKNOWN:return(SSL3_AD_CERTIFICATE_UNKNOWN); | |
1239 | case SSL_AD_ILLEGAL_PARAMETER: return(SSL3_AD_ILLEGAL_PARAMETER); | |
1240 | case SSL_AD_UNKNOWN_CA: return(TLS1_AD_UNKNOWN_CA); | |
1241 | case SSL_AD_ACCESS_DENIED: return(TLS1_AD_ACCESS_DENIED); | |
1242 | case SSL_AD_DECODE_ERROR: return(TLS1_AD_DECODE_ERROR); | |
1243 | case SSL_AD_DECRYPT_ERROR: return(TLS1_AD_DECRYPT_ERROR); | |
657e60fa | 1244 | case SSL_AD_EXPORT_RESTRICTION: return(TLS1_AD_EXPORT_RESTRICTION); |
58964a49 RE |
1245 | case SSL_AD_PROTOCOL_VERSION: return(TLS1_AD_PROTOCOL_VERSION); |
1246 | case SSL_AD_INSUFFICIENT_SECURITY:return(TLS1_AD_INSUFFICIENT_SECURITY); | |
1247 | case SSL_AD_INTERNAL_ERROR: return(TLS1_AD_INTERNAL_ERROR); | |
657e60fa | 1248 | case SSL_AD_USER_CANCELLED: return(TLS1_AD_USER_CANCELLED); |
58964a49 | 1249 | case SSL_AD_NO_RENEGOTIATION: return(TLS1_AD_NO_RENEGOTIATION); |
d32f888d BM |
1250 | case SSL_AD_UNSUPPORTED_EXTENSION: return(TLS1_AD_UNSUPPORTED_EXTENSION); |
1251 | case SSL_AD_CERTIFICATE_UNOBTAINABLE: return(TLS1_AD_CERTIFICATE_UNOBTAINABLE); | |
f7914dbf | 1252 | case SSL_AD_UNRECOGNIZED_NAME: return(TLS1_AD_UNRECOGNIZED_NAME); |
d32f888d BM |
1253 | case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE: return(TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE); |
1254 | case SSL_AD_BAD_CERTIFICATE_HASH_VALUE: return(TLS1_AD_BAD_CERTIFICATE_HASH_VALUE); | |
ddac1974 | 1255 | case SSL_AD_UNKNOWN_PSK_IDENTITY:return(TLS1_AD_UNKNOWN_PSK_IDENTITY); |
01c76c66 | 1256 | #if 0 /* not appropriate for TLS, not used for DTLS */ |
36d16f8e BL |
1257 | case DTLS1_AD_MISSING_HANDSHAKE_MESSAGE: return |
1258 | (DTLS1_AD_MISSING_HANDSHAKE_MESSAGE); | |
01c76c66 | 1259 | #endif |
58964a49 RE |
1260 | default: return(-1); |
1261 | } | |
1262 | } |