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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 | 305 | #ifdef KSSL_DEBUG |
8932b82f | 306 | fprintf(stderr,"tls1_generate_key_block() ==> %d byte master_key =\n\t", |
f9b3bff6 RL |
307 | s->session->master_key_length); |
308 | { | |
309 | int i; | |
310 | for (i=0; i < s->session->master_key_length; i++) | |
311 | { | |
8932b82f | 312 | fprintf(stderr,"%02X", s->session->master_key[i]); |
f9b3bff6 | 313 | } |
8932b82f | 314 | fprintf(stderr,"\n"); } |
f9b3bff6 | 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 | 351 | #ifdef KSSL_DEBUG |
8932b82f RL |
352 | fprintf(stderr,"tls1_change_cipher_state(which= %d) w/\n", which); |
353 | fprintf(stderr,"\talg= %ld/%ld, comp= %p\n", | |
52b8dad8 BM |
354 | s->s3->tmp.new_cipher->algorithm_mkey, |
355 | s->s3->tmp.new_cipher->algorithm_auth, | |
6343829a | 356 | comp); |
8932b82f RL |
357 | fprintf(stderr,"\tevp_cipher == %p ==? &d_cbc_ede_cipher3\n", c); |
358 | fprintf(stderr,"\tevp_cipher: nid, blksz= %d, %d, keylen=%d, ivlen=%d\n", | |
6343829a | 359 | c->nid,c->block_size,c->key_len,c->iv_len); |
8932b82f | 360 | fprintf(stderr,"\tkey_block: len= %d, data= ", s->s3->tmp.key_block_length); |
f9b3bff6 | 361 | { |
6343829a GT |
362 | int i; |
363 | for (i=0; i<s->s3->tmp.key_block_length; i++) | |
8932b82f | 364 | fprintf(stderr,"%02x", s->s3->tmp.key_block[i]); fprintf(stderr,"\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; | |
34628967 | 417 | if (s->enc_write_ctx != NULL && !SSL_IS_DTLS(s)) |
28797374 | 418 | reuse_dd = 1; |
34628967 | 419 | else if ((s->enc_write_ctx=EVP_CIPHER_CTX_new()) == NULL) |
28797374 | 420 | goto err; |
58964a49 | 421 | dd= s->enc_write_ctx; |
34628967 DSH |
422 | if (SSL_IS_DTLS(s)) |
423 | { | |
424 | mac_ctx = EVP_MD_CTX_create(); | |
425 | if (!mac_ctx) | |
426 | goto err; | |
427 | s->write_hash = mac_ctx; | |
428 | } | |
429 | else | |
430 | mac_ctx = ssl_replace_hash(&s->write_hash,NULL); | |
09b6c2ef | 431 | #ifndef OPENSSL_NO_COMP |
dfeab068 RE |
432 | if (s->compress != NULL) |
433 | { | |
434 | COMP_CTX_free(s->compress); | |
435 | s->compress=NULL; | |
436 | } | |
437 | if (comp != NULL) | |
438 | { | |
413c4f45 | 439 | s->compress=COMP_CTX_new(comp->method); |
dfeab068 RE |
440 | if (s->compress == NULL) |
441 | { | |
442 | SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,SSL_R_COMPRESSION_LIBRARY_ERROR); | |
443 | goto err2; | |
444 | } | |
445 | } | |
09b6c2ef | 446 | #endif |
36d16f8e BL |
447 | /* this is done by dtls1_reset_seq_numbers for DTLS1_VERSION */ |
448 | if (s->version != DTLS1_VERSION) | |
449 | memset(&(s->s3->write_sequence[0]),0,8); | |
58964a49 | 450 | mac_secret= &(s->s3->write_mac_secret[0]); |
b948e2c5 | 451 | mac_secret_size = &(s->s3->write_mac_secret_size); |
58964a49 RE |
452 | } |
453 | ||
28797374 BM |
454 | if (reuse_dd) |
455 | EVP_CIPHER_CTX_cleanup(dd); | |
58964a49 RE |
456 | |
457 | p=s->s3->tmp.key_block; | |
b948e2c5 DSH |
458 | i=*mac_secret_size=s->s3->tmp.new_mac_secret_size; |
459 | ||
436d318c | 460 | cl=EVP_CIPHER_key_length(c); |
28797374 BM |
461 | j=is_export ? (cl < SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher) ? |
462 | cl : SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher)) : cl; | |
436d318c | 463 | /* Was j=(exp)?5:EVP_CIPHER_key_length(c); */ |
aed53d6c DSH |
464 | /* If GCM mode only part of IV comes from PRF */ |
465 | if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE) | |
466 | k = EVP_GCM_TLS_FIXED_IV_LEN; | |
467 | else | |
468 | k=EVP_CIPHER_iv_length(c); | |
58964a49 RE |
469 | if ( (which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) || |
470 | (which == SSL3_CHANGE_CIPHER_SERVER_READ)) | |
471 | { | |
472 | ms= &(p[ 0]); n=i+i; | |
473 | key= &(p[ n]); n+=j+j; | |
474 | iv= &(p[ n]); n+=k+k; | |
475 | exp_label=(unsigned char *)TLS_MD_CLIENT_WRITE_KEY_CONST; | |
476 | exp_label_len=TLS_MD_CLIENT_WRITE_KEY_CONST_SIZE; | |
477 | client_write=1; | |
478 | } | |
479 | else | |
480 | { | |
481 | n=i; | |
482 | ms= &(p[ n]); n+=i+j; | |
483 | key= &(p[ n]); n+=j+k; | |
484 | iv= &(p[ n]); n+=k; | |
485 | exp_label=(unsigned char *)TLS_MD_SERVER_WRITE_KEY_CONST; | |
486 | exp_label_len=TLS_MD_SERVER_WRITE_KEY_CONST_SIZE; | |
487 | client_write=0; | |
488 | } | |
489 | ||
490 | if (n > s->s3->tmp.key_block_length) | |
491 | { | |
5277d7cb | 492 | SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,ERR_R_INTERNAL_ERROR); |
58964a49 RE |
493 | goto err2; |
494 | } | |
495 | ||
496 | memcpy(mac_secret,ms,i); | |
90f3e4cf AP |
497 | |
498 | if (!(EVP_CIPHER_flags(c)&EVP_CIPH_FLAG_AEAD_CIPHER)) | |
499 | { | |
500 | mac_key = EVP_PKEY_new_mac_key(mac_type, NULL, | |
501 | mac_secret,*mac_secret_size); | |
502 | EVP_DigestSignInit(mac_ctx,NULL,m,NULL,mac_key); | |
503 | EVP_PKEY_free(mac_key); | |
504 | } | |
58964a49 RE |
505 | #ifdef TLS_DEBUG |
506 | printf("which = %04X\nmac key=",which); | |
507 | { int z; for (z=0; z<i; z++) printf("%02X%c",ms[z],((z+1)%16)?' ':'\n'); } | |
508 | #endif | |
28797374 | 509 | if (is_export) |
58964a49 RE |
510 | { |
511 | /* In here I set both the read and write key/iv to the | |
512 | * same value since only the correct one will be used :-). | |
513 | */ | |
9472baae | 514 | if (!tls1_PRF(ssl_get_algorithm2(s), |
72240ab3 DSH |
515 | exp_label,exp_label_len, |
516 | s->s3->client_random,SSL3_RANDOM_SIZE, | |
517 | s->s3->server_random,SSL3_RANDOM_SIZE, | |
518 | NULL,0,NULL,0, | |
519 | key,j,tmp1,tmp2,EVP_CIPHER_key_length(c))) | |
520 | goto err2; | |
58964a49 RE |
521 | key=tmp1; |
522 | ||
523 | if (k > 0) | |
524 | { | |
9472baae | 525 | if (!tls1_PRF(ssl_get_algorithm2(s), |
72240ab3 DSH |
526 | TLS_MD_IV_BLOCK_CONST,TLS_MD_IV_BLOCK_CONST_SIZE, |
527 | s->s3->client_random,SSL3_RANDOM_SIZE, | |
528 | s->s3->server_random,SSL3_RANDOM_SIZE, | |
529 | NULL,0,NULL,0, | |
530 | empty,0,iv1,iv2,k*2)) | |
531 | goto err2; | |
58964a49 RE |
532 | if (client_write) |
533 | iv=iv1; | |
534 | else | |
535 | iv= &(iv1[k]); | |
536 | } | |
537 | } | |
538 | ||
539 | s->session->key_arg_length=0; | |
f9b3bff6 RL |
540 | #ifdef KSSL_DEBUG |
541 | { | |
6343829a | 542 | int i; |
8932b82f RL |
543 | fprintf(stderr,"EVP_CipherInit_ex(dd,c,key=,iv=,which)\n"); |
544 | fprintf(stderr,"\tkey= "); for (i=0; i<c->key_len; i++) fprintf(stderr,"%02x", key[i]); | |
545 | fprintf(stderr,"\n"); | |
546 | fprintf(stderr,"\t iv= "); for (i=0; i<c->iv_len; i++) fprintf(stderr,"%02x", iv[i]); | |
547 | fprintf(stderr,"\n"); | |
f9b3bff6 RL |
548 | } |
549 | #endif /* KSSL_DEBUG */ | |
58964a49 | 550 | |
aed53d6c DSH |
551 | if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE) |
552 | { | |
553 | EVP_CipherInit_ex(dd,c,NULL,key,NULL,(which & SSL3_CC_WRITE)); | |
554 | EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_GCM_SET_IV_FIXED, k, iv); | |
555 | } | |
556 | else | |
557 | EVP_CipherInit_ex(dd,c,NULL,key,iv,(which & SSL3_CC_WRITE)); | |
90f3e4cf AP |
558 | |
559 | /* Needed for "composite" AEADs, such as RC4-HMAC-MD5 */ | |
560 | if ((EVP_CIPHER_flags(c)&EVP_CIPH_FLAG_AEAD_CIPHER) && *mac_secret_size) | |
561 | EVP_CIPHER_CTX_ctrl(dd,EVP_CTRL_AEAD_SET_MAC_KEY, | |
562 | *mac_secret_size,mac_secret); | |
563 | ||
58964a49 RE |
564 | #ifdef TLS_DEBUG |
565 | printf("which = %04X\nkey=",which); | |
566 | { int z; for (z=0; z<EVP_CIPHER_key_length(c); z++) printf("%02X%c",key[z],((z+1)%16)?' ':'\n'); } | |
567 | printf("\niv="); | |
568 | { int z; for (z=0; z<k; z++) printf("%02X%c",iv[z],((z+1)%16)?' ':'\n'); } | |
569 | printf("\n"); | |
570 | #endif | |
571 | ||
4579924b RL |
572 | OPENSSL_cleanse(tmp1,sizeof(tmp1)); |
573 | OPENSSL_cleanse(tmp2,sizeof(tmp1)); | |
574 | OPENSSL_cleanse(iv1,sizeof(iv1)); | |
575 | OPENSSL_cleanse(iv2,sizeof(iv2)); | |
58964a49 RE |
576 | return(1); |
577 | err: | |
578 | SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,ERR_R_MALLOC_FAILURE); | |
579 | err2: | |
580 | return(0); | |
581 | } | |
582 | ||
6b691a5c | 583 | int tls1_setup_key_block(SSL *s) |
58964a49 | 584 | { |
72240ab3 | 585 | unsigned char *p1,*p2=NULL; |
e778802f BL |
586 | const EVP_CIPHER *c; |
587 | const EVP_MD *hash; | |
06ab81f9 | 588 | int num; |
413c4f45 | 589 | SSL_COMP *comp; |
b948e2c5 | 590 | int mac_type= NID_undef,mac_secret_size=0; |
72240ab3 | 591 | int ret=0; |
58964a49 | 592 | |
f9b3bff6 | 593 | #ifdef KSSL_DEBUG |
8932b82f | 594 | fprintf(stderr,"tls1_setup_key_block()\n"); |
f9b3bff6 RL |
595 | #endif /* KSSL_DEBUG */ |
596 | ||
58964a49 RE |
597 | if (s->s3->tmp.key_block_length != 0) |
598 | return(1); | |
599 | ||
b948e2c5 | 600 | if (!ssl_cipher_get_evp(s->session,&c,&hash,&mac_type,&mac_secret_size,&comp)) |
58964a49 RE |
601 | { |
602 | SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,SSL_R_CIPHER_OR_HASH_UNAVAILABLE); | |
603 | return(0); | |
604 | } | |
605 | ||
606 | s->s3->tmp.new_sym_enc=c; | |
607 | s->s3->tmp.new_hash=hash; | |
b948e2c5 DSH |
608 | s->s3->tmp.new_mac_pkey_type = mac_type; |
609 | s->s3->tmp.new_mac_secret_size = mac_secret_size; | |
610 | num=EVP_CIPHER_key_length(c)+mac_secret_size+EVP_CIPHER_iv_length(c); | |
58964a49 RE |
611 | num*=2; |
612 | ||
613 | ssl3_cleanup_key_block(s); | |
614 | ||
26a3a48d | 615 | if ((p1=(unsigned char *)OPENSSL_malloc(num)) == NULL) |
72240ab3 DSH |
616 | { |
617 | SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,ERR_R_MALLOC_FAILURE); | |
58964a49 | 618 | goto err; |
72240ab3 | 619 | } |
58964a49 RE |
620 | |
621 | s->s3->tmp.key_block_length=num; | |
622 | s->s3->tmp.key_block=p1; | |
623 | ||
72240ab3 DSH |
624 | if ((p2=(unsigned char *)OPENSSL_malloc(num)) == NULL) |
625 | { | |
626 | SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,ERR_R_MALLOC_FAILURE); | |
627 | goto err; | |
628 | } | |
58964a49 RE |
629 | |
630 | #ifdef TLS_DEBUG | |
631 | printf("client random\n"); | |
632 | { int z; for (z=0; z<SSL3_RANDOM_SIZE; z++) printf("%02X%c",s->s3->client_random[z],((z+1)%16)?' ':'\n'); } | |
633 | printf("server random\n"); | |
634 | { int z; for (z=0; z<SSL3_RANDOM_SIZE; z++) printf("%02X%c",s->s3->server_random[z],((z+1)%16)?' ':'\n'); } | |
635 | printf("pre-master\n"); | |
636 | { int z; for (z=0; z<s->session->master_key_length; z++) printf("%02X%c",s->session->master_key[z],((z+1)%16)?' ':'\n'); } | |
637 | #endif | |
72240ab3 DSH |
638 | if (!tls1_generate_key_block(s,p1,p2,num)) |
639 | goto err; | |
58964a49 RE |
640 | #ifdef TLS_DEBUG |
641 | printf("\nkey block\n"); | |
642 | { int z; for (z=0; z<num; z++) printf("%02X%c",p1[z],((z+1)%16)?' ':'\n'); } | |
643 | #endif | |
644 | ||
28566b49 DSH |
645 | if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS) |
646 | && s->method->version <= TLS1_VERSION) | |
c21506ba BM |
647 | { |
648 | /* enable vulnerability countermeasure for CBC ciphers with | |
649 | * known-IV problem (http://www.openssl.org/~bodo/tls-cbc.txt) | |
650 | */ | |
651 | s->s3->need_empty_fragments = 1; | |
652 | ||
d1d0be3c BM |
653 | if (s->session->cipher != NULL) |
654 | { | |
52b8dad8 | 655 | if (s->session->cipher->algorithm_enc == SSL_eNULL) |
d1d0be3c BM |
656 | s->s3->need_empty_fragments = 0; |
657 | ||
658 | #ifndef OPENSSL_NO_RC4 | |
52b8dad8 | 659 | if (s->session->cipher->algorithm_enc == SSL_RC4) |
d1d0be3c | 660 | s->s3->need_empty_fragments = 0; |
82b0bf0b | 661 | #endif |
d1d0be3c | 662 | } |
c21506ba | 663 | } |
82b0bf0b | 664 | |
72240ab3 | 665 | ret = 1; |
58964a49 | 666 | err: |
72240ab3 DSH |
667 | if (p2) |
668 | { | |
669 | OPENSSL_cleanse(p2,num); | |
670 | OPENSSL_free(p2); | |
671 | } | |
672 | return(ret); | |
58964a49 RE |
673 | } |
674 | ||
3e9a08ec TH |
675 | /*- |
676 | * tls1_enc encrypts/decrypts the record in |s->wrec| / |s->rrec|, respectively. | |
6cb19b76 BL |
677 | * |
678 | * Returns: | |
679 | * 0: (in non-constant time) if the record is publically invalid (i.e. too | |
680 | * short etc). | |
681 | * 1: if the record's padding is valid / the encryption was successful. | |
682 | * -1: if the record's padding/AEAD-authenticator is invalid or, if sending, | |
683 | * an internal error occured. | |
684 | */ | |
6b691a5c | 685 | int tls1_enc(SSL *s, int send) |
58964a49 RE |
686 | { |
687 | SSL3_RECORD *rec; | |
688 | EVP_CIPHER_CTX *ds; | |
689 | unsigned long l; | |
e130841b | 690 | int bs,i,j,k,pad=0,ret,mac_size=0; |
e778802f | 691 | const EVP_CIPHER *enc; |
58964a49 RE |
692 | |
693 | if (send) | |
694 | { | |
b948e2c5 | 695 | if (EVP_MD_CTX_md(s->write_hash)) |
0eab41fb | 696 | { |
90f3e4cf | 697 | int n=EVP_MD_CTX_size(s->write_hash); |
0eab41fb BL |
698 | OPENSSL_assert(n >= 0); |
699 | } | |
58964a49 RE |
700 | ds=s->enc_write_ctx; |
701 | rec= &(s->s3->wrec); | |
702 | if (s->enc_write_ctx == NULL) | |
dfeab068 | 703 | enc=NULL; |
58964a49 | 704 | else |
b4b15f68 DSH |
705 | { |
706 | int ivlen; | |
58964a49 | 707 | enc=EVP_CIPHER_CTX_cipher(s->enc_write_ctx); |
b4b15f68 | 708 | /* For TLSv1.1 and later explicit IV */ |
1a8ecda3 DSH |
709 | if (s->version >= TLS1_1_VERSION |
710 | && EVP_CIPHER_mode(enc) == EVP_CIPH_CBC_MODE) | |
b4b15f68 DSH |
711 | ivlen = EVP_CIPHER_iv_length(enc); |
712 | else | |
713 | ivlen = 0; | |
714 | if (ivlen > 1) | |
715 | { | |
716 | if ( rec->data != rec->input) | |
90f3e4cf AP |
717 | /* we can't write into the input stream: |
718 | * Can this ever happen?? (steve) | |
719 | */ | |
720 | fprintf(stderr, | |
721 | "%s:%d: rec->data != rec->input\n", | |
722 | __FILE__, __LINE__); | |
b4b15f68 DSH |
723 | else if (RAND_bytes(rec->input, ivlen) <= 0) |
724 | return -1; | |
725 | } | |
726 | } | |
58964a49 RE |
727 | } |
728 | else | |
729 | { | |
b948e2c5 | 730 | if (EVP_MD_CTX_md(s->read_hash)) |
0eab41fb | 731 | { |
90f3e4cf | 732 | int n=EVP_MD_CTX_size(s->read_hash); |
0eab41fb BL |
733 | OPENSSL_assert(n >= 0); |
734 | } | |
58964a49 RE |
735 | ds=s->enc_read_ctx; |
736 | rec= &(s->s3->rrec); | |
737 | if (s->enc_read_ctx == NULL) | |
dfeab068 | 738 | enc=NULL; |
58964a49 | 739 | else |
58964a49 | 740 | enc=EVP_CIPHER_CTX_cipher(s->enc_read_ctx); |
58964a49 RE |
741 | } |
742 | ||
f9b3bff6 | 743 | #ifdef KSSL_DEBUG |
8932b82f | 744 | fprintf(stderr,"tls1_enc(%d)\n", send); |
f9b3bff6 RL |
745 | #endif /* KSSL_DEBUG */ |
746 | ||
e130841b | 747 | if ((s->session == NULL) || (ds == NULL) || (enc == NULL)) |
58964a49 | 748 | { |
44e48abc | 749 | memmove(rec->data,rec->input,rec->length); |
58964a49 | 750 | rec->input=rec->data; |
e130841b | 751 | ret = 1; |
58964a49 RE |
752 | } |
753 | else | |
754 | { | |
755 | l=rec->length; | |
756 | bs=EVP_CIPHER_block_size(ds->cipher); | |
757 | ||
90f3e4cf AP |
758 | if (EVP_CIPHER_flags(ds->cipher)&EVP_CIPH_FLAG_AEAD_CIPHER) |
759 | { | |
760 | unsigned char buf[13],*seq; | |
761 | ||
762 | seq = send?s->s3->write_sequence:s->s3->read_sequence; | |
763 | ||
764 | if (s->version == DTLS1_VERSION || s->version == DTLS1_BAD_VER) | |
765 | { | |
766 | unsigned char dtlsseq[9],*p=dtlsseq; | |
767 | ||
768 | s2n(send?s->d1->w_epoch:s->d1->r_epoch,p); | |
769 | memcpy(p,&seq[2],6); | |
770 | memcpy(buf,dtlsseq,8); | |
771 | } | |
772 | else | |
773 | { | |
774 | memcpy(buf,seq,8); | |
775 | for (i=7; i>=0; i--) /* increment */ | |
776 | { | |
777 | ++seq[i]; | |
778 | if (seq[i] != 0) break; | |
779 | } | |
780 | } | |
781 | ||
782 | buf[8]=rec->type; | |
783 | buf[9]=(unsigned char)(s->version>>8); | |
784 | buf[10]=(unsigned char)(s->version); | |
785 | buf[11]=rec->length>>8; | |
786 | buf[12]=rec->length&0xff; | |
787 | pad=EVP_CIPHER_CTX_ctrl(ds,EVP_CTRL_AEAD_TLS1_AAD,13,buf); | |
788 | if (send) | |
789 | { | |
790 | l+=pad; | |
791 | rec->length+=pad; | |
792 | } | |
793 | } | |
794 | else if ((bs != 1) && send) | |
58964a49 RE |
795 | { |
796 | i=bs-((int)l%bs); | |
797 | ||
798 | /* Add weird padding of upto 256 bytes */ | |
799 | ||
800 | /* we need to add 'i' padding bytes of value j */ | |
801 | j=i-1; | |
802 | if (s->options & SSL_OP_TLS_BLOCK_PADDING_BUG) | |
803 | { | |
804 | if (s->s3->flags & TLS1_FLAGS_TLS_PADDING_BUG) | |
805 | j++; | |
806 | } | |
807 | for (k=(int)l; k<(int)(l+i); k++) | |
808 | rec->input[k]=j; | |
809 | l+=i; | |
810 | rec->length+=i; | |
811 | } | |
812 | ||
f9b3bff6 RL |
813 | #ifdef KSSL_DEBUG |
814 | { | |
e130841b | 815 | unsigned long ui; |
8932b82f | 816 | fprintf(stderr,"EVP_Cipher(ds=%p,rec->data=%p,rec->input=%p,l=%ld) ==>\n", |
e130841b | 817 | ds,rec->data,rec->input,l); |
8932b82f | 818 | fprintf(stderr,"\tEVP_CIPHER_CTX: %d buf_len, %d key_len [%lu %lu], %d iv_len\n", |
e130841b BL |
819 | ds->buf_len, ds->cipher->key_len, |
820 | DES_KEY_SZ, DES_SCHEDULE_SZ, | |
821 | ds->cipher->iv_len); | |
8932b82f RL |
822 | fprintf(stderr,"\t\tIV: "); |
823 | for (i=0; i<ds->cipher->iv_len; i++) fprintf(stderr,"%02X", ds->iv[i]); | |
824 | fprintf(stderr,"\n"); | |
825 | fprintf(stderr,"\trec->input="); | |
826 | for (ui=0; ui<l; ui++) fprintf(stderr," %02x", rec->input[ui]); | |
827 | fprintf(stderr,"\n"); | |
f9b3bff6 RL |
828 | } |
829 | #endif /* KSSL_DEBUG */ | |
830 | ||
285b4275 BM |
831 | if (!send) |
832 | { | |
833 | if (l == 0 || l%bs != 0) | |
ee60d9fb | 834 | return 0; |
285b4275 BM |
835 | } |
836 | ||
9cc42cb0 AP |
837 | i = EVP_Cipher(ds,rec->data,rec->input,l); |
838 | if ((EVP_CIPHER_flags(ds->cipher)&EVP_CIPH_FLAG_CUSTOM_CIPHER) | |
839 | ?(i<0) | |
840 | :(i==0)) | |
90f3e4cf | 841 | return -1; /* AEAD can fail to verify MAC */ |
aed53d6c DSH |
842 | if (EVP_CIPHER_mode(enc) == EVP_CIPH_GCM_MODE && !send) |
843 | { | |
844 | rec->data += EVP_GCM_TLS_EXPLICIT_IV_LEN; | |
845 | rec->input += EVP_GCM_TLS_EXPLICIT_IV_LEN; | |
846 | rec->length -= EVP_GCM_TLS_EXPLICIT_IV_LEN; | |
847 | } | |
58964a49 | 848 | |
f9b3bff6 RL |
849 | #ifdef KSSL_DEBUG |
850 | { | |
e130841b | 851 | unsigned long i; |
8932b82f | 852 | fprintf(stderr,"\trec->data="); |
6343829a | 853 | for (i=0; i<l; i++) |
8932b82f | 854 | fprintf(stderr," %02x", rec->data[i]); fprintf(stderr,"\n"); |
e130841b | 855 | } |
f9b3bff6 RL |
856 | #endif /* KSSL_DEBUG */ |
857 | ||
e130841b BL |
858 | ret = 1; |
859 | if (EVP_MD_CTX_md(s->read_hash) != NULL) | |
860 | mac_size = EVP_MD_CTX_size(s->read_hash); | |
58964a49 | 861 | if ((bs != 1) && !send) |
e130841b | 862 | ret = tls1_cbc_remove_padding(s, rec, bs, mac_size); |
90f3e4cf AP |
863 | if (pad && !send) |
864 | rec->length -= pad; | |
58964a49 | 865 | } |
e130841b | 866 | return ret; |
58964a49 | 867 | } |
e130841b | 868 | |
81025661 | 869 | int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *out) |
58964a49 RE |
870 | { |
871 | unsigned int ret; | |
81025661 DSH |
872 | EVP_MD_CTX ctx, *d=NULL; |
873 | int i; | |
874 | ||
875 | if (s->s3->handshake_buffer) | |
6ba71a71 BL |
876 | if (!ssl3_digest_cached_records(s)) |
877 | return 0; | |
878 | ||
81025661 DSH |
879 | for (i=0;i<SSL_MAX_DIGEST;i++) |
880 | { | |
881 | if (s->s3->handshake_dgst[i]&&EVP_MD_CTX_type(s->s3->handshake_dgst[i])==md_nid) | |
882 | { | |
883 | d=s->s3->handshake_dgst[i]; | |
884 | break; | |
885 | } | |
886 | } | |
887 | if (!d) { | |
888 | SSLerr(SSL_F_TLS1_CERT_VERIFY_MAC,SSL_R_NO_REQUIRED_DIGEST); | |
889 | return 0; | |
890 | } | |
58964a49 | 891 | |
dbad1690 | 892 | EVP_MD_CTX_init(&ctx); |
81025661 | 893 | EVP_MD_CTX_copy_ex(&ctx,d); |
20d2186c | 894 | EVP_DigestFinal_ex(&ctx,out,&ret); |
dbad1690 | 895 | EVP_MD_CTX_cleanup(&ctx); |
58964a49 RE |
896 | return((int)ret); |
897 | } | |
898 | ||
81025661 | 899 | int tls1_final_finish_mac(SSL *s, |
245206ea | 900 | const char *str, int slen, unsigned char *out) |
58964a49 RE |
901 | { |
902 | unsigned int i; | |
903 | EVP_MD_CTX ctx; | |
761772d7 | 904 | unsigned char buf[2*EVP_MAX_MD_SIZE]; |
58964a49 | 905 | unsigned char *q,buf2[12]; |
81025661 DSH |
906 | int idx; |
907 | long mask; | |
761772d7 | 908 | int err=0; |
81025661 | 909 | const EVP_MD *md; |
58964a49 RE |
910 | |
911 | q=buf; | |
58964a49 | 912 | |
81025661 | 913 | if (s->s3->handshake_buffer) |
6ba71a71 BL |
914 | if (!ssl3_digest_cached_records(s)) |
915 | return 0; | |
916 | ||
917 | EVP_MD_CTX_init(&ctx); | |
81025661 | 918 | |
761772d7 BM |
919 | for (idx=0;ssl_get_handshake_digest(idx,&mask,&md);idx++) |
920 | { | |
9472baae | 921 | if (mask & ssl_get_algorithm2(s)) |
761772d7 | 922 | { |
d7ecd422 | 923 | int hashsize = EVP_MD_size(md); |
0294b2be DSH |
924 | EVP_MD_CTX *hdgst = s->s3->handshake_dgst[idx]; |
925 | if (!hdgst || hashsize < 0 || hashsize > (int)(sizeof buf - (size_t)(q-buf))) | |
761772d7 BM |
926 | { |
927 | /* internal error: 'buf' is too small for this cipersuite! */ | |
928 | err = 1; | |
929 | } | |
930 | else | |
931 | { | |
0294b2be DSH |
932 | if (!EVP_MD_CTX_copy_ex(&ctx, hdgst) || |
933 | !EVP_DigestFinal_ex(&ctx,q,&i) || | |
934 | (i != (unsigned int)hashsize)) | |
761772d7 | 935 | err = 1; |
0294b2be | 936 | q+=hashsize; |
761772d7 BM |
937 | } |
938 | } | |
81025661 | 939 | } |
761772d7 | 940 | |
9472baae | 941 | if (!tls1_PRF(ssl_get_algorithm2(s), |
72240ab3 DSH |
942 | str,slen, buf,(int)(q-buf), NULL,0, NULL,0, NULL,0, |
943 | s->session->master_key,s->session->master_key_length, | |
944 | out,buf2,sizeof buf2)) | |
945 | err = 1; | |
dbad1690 | 946 | EVP_MD_CTX_cleanup(&ctx); |
58964a49 | 947 | |
761772d7 BM |
948 | if (err) |
949 | return 0; | |
950 | else | |
951 | return sizeof buf2; | |
58964a49 RE |
952 | } |
953 | ||
6b691a5c | 954 | int tls1_mac(SSL *ssl, unsigned char *md, int send) |
58964a49 RE |
955 | { |
956 | SSL3_RECORD *rec; | |
e9735943 | 957 | unsigned char *seq; |
b948e2c5 | 958 | EVP_MD_CTX *hash; |
ec07246a | 959 | size_t md_size, orig_len; |
58964a49 | 960 | int i; |
b948e2c5 | 961 | EVP_MD_CTX hmac, *mac_ctx; |
e130841b | 962 | unsigned char header[13]; |
b948e2c5 | 963 | int stream_mac = (send?(ssl->mac_flags & SSL_MAC_FLAG_WRITE_MAC_STREAM):(ssl->mac_flags&SSL_MAC_FLAG_READ_MAC_STREAM)); |
0eab41fb | 964 | int t; |
4fe55663 | 965 | |
58964a49 RE |
966 | if (send) |
967 | { | |
968 | rec= &(ssl->s3->wrec); | |
58964a49 RE |
969 | seq= &(ssl->s3->write_sequence[0]); |
970 | hash=ssl->write_hash; | |
971 | } | |
972 | else | |
973 | { | |
974 | rec= &(ssl->s3->rrec); | |
58964a49 RE |
975 | seq= &(ssl->s3->read_sequence[0]); |
976 | hash=ssl->read_hash; | |
977 | } | |
978 | ||
0eab41fb BL |
979 | t=EVP_MD_CTX_size(hash); |
980 | OPENSSL_assert(t >= 0); | |
981 | md_size=t; | |
58964a49 | 982 | |
58964a49 | 983 | /* I should fix this up TLS TLS TLS TLS TLS XXXXXXXX */ |
b948e2c5 DSH |
984 | if (stream_mac) |
985 | { | |
986 | mac_ctx = hash; | |
987 | } | |
988 | else | |
989 | { | |
48e6edab AP |
990 | if (!EVP_MD_CTX_copy(&hmac,hash)) |
991 | return -1; | |
b948e2c5 | 992 | mac_ctx = &hmac; |
4fe55663 AP |
993 | } |
994 | ||
b452f433 | 995 | if (ssl->version == DTLS1_VERSION || ssl->version == DTLS1_BAD_VER) |
4fe55663 AP |
996 | { |
997 | unsigned char dtlsseq[8],*p=dtlsseq; | |
998 | ||
999 | s2n(send?ssl->d1->w_epoch:ssl->d1->r_epoch, p); | |
1000 | memcpy (p,&seq[2],6); | |
1001 | ||
e130841b | 1002 | memcpy(header, dtlsseq, 8); |
4fe55663 AP |
1003 | } |
1004 | else | |
e130841b BL |
1005 | memcpy(header, seq, 8); |
1006 | ||
ec07246a AP |
1007 | /* kludge: tls1_cbc_remove_padding passes padding length in rec->type */ |
1008 | orig_len = rec->length+md_size+((unsigned int)rec->type>>8); | |
1009 | rec->type &= 0xff; | |
1010 | ||
e130841b BL |
1011 | header[8]=rec->type; |
1012 | header[9]=(unsigned char)(ssl->version>>8); | |
1013 | header[10]=(unsigned char)(ssl->version); | |
1014 | header[11]=(rec->length)>>8; | |
1015 | header[12]=(rec->length)&0xff; | |
4fe55663 | 1016 | |
e130841b BL |
1017 | if (!send && |
1018 | EVP_CIPHER_CTX_mode(ssl->enc_read_ctx) == EVP_CIPH_CBC_MODE && | |
1019 | ssl3_cbc_record_digest_supported(mac_ctx)) | |
1020 | { | |
1021 | /* This is a CBC-encrypted record. We must avoid leaking any | |
1022 | * timing-side channel information about how many blocks of | |
1023 | * data we are hashing because that gives an attacker a | |
1024 | * timing-oracle. */ | |
1025 | ssl3_cbc_digest_record( | |
1026 | mac_ctx, | |
1027 | md, &md_size, | |
1028 | header, rec->input, | |
ec07246a | 1029 | rec->length + md_size, orig_len, |
e130841b BL |
1030 | ssl->s3->read_mac_secret, |
1031 | ssl->s3->read_mac_secret_size, | |
1032 | 0 /* not SSLv3 */); | |
1033 | } | |
1034 | else | |
1035 | { | |
1036 | EVP_DigestSignUpdate(mac_ctx,header,sizeof(header)); | |
1037 | EVP_DigestSignUpdate(mac_ctx,rec->input,rec->length); | |
1038 | t=EVP_DigestSignFinal(mac_ctx,md,&md_size); | |
1039 | OPENSSL_assert(t > 0); | |
b908e88e DSH |
1040 | #ifdef OPENSSL_FIPS |
1041 | if (!send && FIPS_mode()) | |
1042 | tls_fips_digest_extra( | |
1043 | ssl->enc_read_ctx, | |
1044 | mac_ctx, rec->input, | |
ec07246a | 1045 | rec->length, orig_len); |
b908e88e | 1046 | #endif |
e130841b | 1047 | } |
0eab41fb | 1048 | |
e130841b BL |
1049 | if (!stream_mac) |
1050 | EVP_MD_CTX_cleanup(&hmac); | |
58964a49 | 1051 | #ifdef TLS_DEBUG |
feefb73a RL |
1052 | fprintf(stderr,"seq="); |
1053 | {int z; for (z=0; z<8; z++) fprintf(stderr,"%02X ",seq[z]); fprintf(stderr,"\n"); } | |
1054 | fprintf(stderr,"rec="); | |
1055 | {unsigned int z; for (z=0; z<rec->length; z++) fprintf(stderr,"%02X ",rec->data[z]); fprintf(stderr,"\n"); } | |
58964a49 RE |
1056 | #endif |
1057 | ||
b452f433 | 1058 | if (ssl->version != DTLS1_VERSION && ssl->version != DTLS1_BAD_VER) |
4fe55663 | 1059 | { |
36d16f8e BL |
1060 | for (i=7; i>=0; i--) |
1061 | { | |
1062 | ++seq[i]; | |
1063 | if (seq[i] != 0) break; | |
1064 | } | |
1876cc32 | 1065 | } |
58964a49 RE |
1066 | |
1067 | #ifdef TLS_DEBUG | |
feefb73a | 1068 | {unsigned int z; for (z=0; z<md_size; z++) fprintf(stderr,"%02X ",md[z]); fprintf(stderr,"\n"); } |
58964a49 RE |
1069 | #endif |
1070 | return(md_size); | |
1071 | } | |
1072 | ||
6b691a5c UM |
1073 | int tls1_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p, |
1074 | int len) | |
58964a49 | 1075 | { |
58964a49 | 1076 | unsigned char buff[SSL_MAX_MASTER_KEY_LENGTH]; |
761772d7 | 1077 | const void *co = NULL, *so = NULL; |
67c8e7f4 | 1078 | int col = 0, sol = 0; |
58964a49 | 1079 | |
9472baae | 1080 | |
f9b3bff6 | 1081 | #ifdef KSSL_DEBUG |
8932b82f | 1082 | fprintf(stderr,"tls1_generate_master_secret(%p,%p, %p, %d)\n", s,out, p,len); |
f9b3bff6 RL |
1083 | #endif /* KSSL_DEBUG */ |
1084 | ||
761772d7 BM |
1085 | #ifdef TLSEXT_TYPE_opaque_prf_input |
1086 | if (s->s3->client_opaque_prf_input != NULL && s->s3->server_opaque_prf_input != NULL && | |
1087 | s->s3->client_opaque_prf_input_len > 0 && | |
1088 | s->s3->client_opaque_prf_input_len == s->s3->server_opaque_prf_input_len) | |
1089 | { | |
1090 | co = s->s3->client_opaque_prf_input; | |
1091 | col = s->s3->server_opaque_prf_input_len; | |
1092 | so = s->s3->server_opaque_prf_input; | |
1093 | 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) */ | |
1094 | } | |
1095 | #endif | |
1096 | ||
9472baae | 1097 | tls1_PRF(ssl_get_algorithm2(s), |
761772d7 BM |
1098 | TLS_MD_MASTER_SECRET_CONST,TLS_MD_MASTER_SECRET_CONST_SIZE, |
1099 | s->s3->client_random,SSL3_RANDOM_SIZE, | |
1100 | co, col, | |
1101 | s->s3->server_random,SSL3_RANDOM_SIZE, | |
1102 | so, sol, | |
1103 | p,len, | |
54a656ef | 1104 | s->session->master_key,buff,sizeof buff); |
9472baae DSH |
1105 | #ifdef SSL_DEBUG |
1106 | fprintf(stderr, "Premaster Secret:\n"); | |
1107 | BIO_dump_fp(stderr, (char *)p, len); | |
1108 | fprintf(stderr, "Client Random:\n"); | |
1109 | BIO_dump_fp(stderr, (char *)s->s3->client_random, SSL3_RANDOM_SIZE); | |
1110 | fprintf(stderr, "Server Random:\n"); | |
1111 | BIO_dump_fp(stderr, (char *)s->s3->server_random, SSL3_RANDOM_SIZE); | |
1112 | fprintf(stderr, "Master Secret:\n"); | |
1113 | BIO_dump_fp(stderr, (char *)s->session->master_key, SSL3_MASTER_SECRET_SIZE); | |
1114 | #endif | |
761772d7 | 1115 | |
f9b3bff6 | 1116 | #ifdef KSSL_DEBUG |
8932b82f | 1117 | fprintf(stderr,"tls1_generate_master_secret() complete\n"); |
f9b3bff6 | 1118 | #endif /* KSSL_DEBUG */ |
58964a49 RE |
1119 | return(SSL3_MASTER_SECRET_SIZE); |
1120 | } | |
1121 | ||
e87afb15 BL |
1122 | int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen, |
1123 | const char *label, size_t llen, const unsigned char *context, | |
1124 | size_t contextlen, int use_context) | |
b1d74291 BL |
1125 | { |
1126 | unsigned char *buff; | |
825e1a7c | 1127 | unsigned char *val = NULL; |
e87afb15 BL |
1128 | size_t vallen, currentvalpos; |
1129 | int rv; | |
b1d74291 BL |
1130 | |
1131 | #ifdef KSSL_DEBUG | |
8932b82f | 1132 | fprintf(stderr,"tls1_export_keying_material(%p,%p,%lu,%s,%lu,%p,%lu)\n", s, out, olen, label, llen, context, contextlen); |
b1d74291 BL |
1133 | #endif /* KSSL_DEBUG */ |
1134 | ||
1135 | buff = OPENSSL_malloc(olen); | |
1136 | if (buff == NULL) goto err2; | |
1137 | ||
1138 | /* construct PRF arguments | |
1139 | * we construct the PRF argument ourself rather than passing separate | |
1140 | * values into the TLS PRF to ensure that the concatenation of values | |
1141 | * does not create a prohibited label. | |
1142 | */ | |
1143 | vallen = llen + SSL3_RANDOM_SIZE * 2; | |
e87afb15 BL |
1144 | if (use_context) |
1145 | { | |
1146 | vallen += 2 + contextlen; | |
1147 | } | |
b1d74291 BL |
1148 | |
1149 | val = OPENSSL_malloc(vallen); | |
1150 | if (val == NULL) goto err2; | |
1151 | currentvalpos = 0; | |
1152 | memcpy(val + currentvalpos, (unsigned char *) label, llen); | |
1153 | currentvalpos += llen; | |
1154 | memcpy(val + currentvalpos, s->s3->client_random, SSL3_RANDOM_SIZE); | |
1155 | currentvalpos += SSL3_RANDOM_SIZE; | |
1156 | memcpy(val + currentvalpos, s->s3->server_random, SSL3_RANDOM_SIZE); | |
1157 | currentvalpos += SSL3_RANDOM_SIZE; | |
1158 | ||
e87afb15 BL |
1159 | if (use_context) |
1160 | { | |
1161 | val[currentvalpos] = (contextlen >> 8) & 0xff; | |
1162 | currentvalpos++; | |
1163 | val[currentvalpos] = contextlen & 0xff; | |
1164 | currentvalpos++; | |
1165 | if ((contextlen > 0) || (context != NULL)) | |
1166 | { | |
1167 | memcpy(val + currentvalpos, context, contextlen); | |
1168 | } | |
1169 | } | |
b1d74291 BL |
1170 | |
1171 | /* disallow prohibited labels | |
1172 | * note that SSL3_RANDOM_SIZE > max(prohibited label len) = | |
1173 | * 15, so size of val > max(prohibited label len) = 15 and the | |
1174 | * comparisons won't have buffer overflow | |
1175 | */ | |
43716567 | 1176 | if (memcmp(val, TLS_MD_CLIENT_FINISH_CONST, |
b1d74291 | 1177 | TLS_MD_CLIENT_FINISH_CONST_SIZE) == 0) goto err1; |
43716567 | 1178 | if (memcmp(val, TLS_MD_SERVER_FINISH_CONST, |
b1d74291 | 1179 | TLS_MD_SERVER_FINISH_CONST_SIZE) == 0) goto err1; |
43716567 | 1180 | if (memcmp(val, TLS_MD_MASTER_SECRET_CONST, |
b1d74291 | 1181 | TLS_MD_MASTER_SECRET_CONST_SIZE) == 0) goto err1; |
43716567 | 1182 | if (memcmp(val, TLS_MD_KEY_EXPANSION_CONST, |
b1d74291 BL |
1183 | TLS_MD_KEY_EXPANSION_CONST_SIZE) == 0) goto err1; |
1184 | ||
28e117f4 | 1185 | rv = tls1_PRF(ssl_get_algorithm2(s), |
e87afb15 BL |
1186 | val, vallen, |
1187 | NULL, 0, | |
1188 | NULL, 0, | |
1189 | NULL, 0, | |
1190 | NULL, 0, | |
1191 | s->session->master_key,s->session->master_key_length, | |
1192 | out,buff,olen); | |
b1d74291 BL |
1193 | |
1194 | #ifdef KSSL_DEBUG | |
8932b82f | 1195 | fprintf(stderr,"tls1_export_keying_material() complete\n"); |
b1d74291 | 1196 | #endif /* KSSL_DEBUG */ |
b1d74291 BL |
1197 | goto ret; |
1198 | err1: | |
1199 | SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL, SSL_R_TLS_ILLEGAL_EXPORTER_LABEL); | |
1200 | rv = 0; | |
1201 | goto ret; | |
1202 | err2: | |
1203 | SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL, ERR_R_MALLOC_FAILURE); | |
1204 | rv = 0; | |
1205 | ret: | |
1206 | if (buff != NULL) OPENSSL_free(buff); | |
1207 | if (val != NULL) OPENSSL_free(val); | |
1208 | return(rv); | |
1209 | } | |
1210 | ||
6b691a5c | 1211 | int tls1_alert_code(int code) |
58964a49 RE |
1212 | { |
1213 | switch (code) | |
1214 | { | |
1215 | case SSL_AD_CLOSE_NOTIFY: return(SSL3_AD_CLOSE_NOTIFY); | |
1216 | case SSL_AD_UNEXPECTED_MESSAGE: return(SSL3_AD_UNEXPECTED_MESSAGE); | |
1217 | case SSL_AD_BAD_RECORD_MAC: return(SSL3_AD_BAD_RECORD_MAC); | |
1218 | case SSL_AD_DECRYPTION_FAILED: return(TLS1_AD_DECRYPTION_FAILED); | |
1219 | case SSL_AD_RECORD_OVERFLOW: return(TLS1_AD_RECORD_OVERFLOW); | |
1220 | case SSL_AD_DECOMPRESSION_FAILURE:return(SSL3_AD_DECOMPRESSION_FAILURE); | |
1221 | case SSL_AD_HANDSHAKE_FAILURE: return(SSL3_AD_HANDSHAKE_FAILURE); | |
1222 | case SSL_AD_NO_CERTIFICATE: return(-1); | |
1223 | case SSL_AD_BAD_CERTIFICATE: return(SSL3_AD_BAD_CERTIFICATE); | |
1224 | case SSL_AD_UNSUPPORTED_CERTIFICATE:return(SSL3_AD_UNSUPPORTED_CERTIFICATE); | |
1225 | case SSL_AD_CERTIFICATE_REVOKED:return(SSL3_AD_CERTIFICATE_REVOKED); | |
1226 | case SSL_AD_CERTIFICATE_EXPIRED:return(SSL3_AD_CERTIFICATE_EXPIRED); | |
1227 | case SSL_AD_CERTIFICATE_UNKNOWN:return(SSL3_AD_CERTIFICATE_UNKNOWN); | |
1228 | case SSL_AD_ILLEGAL_PARAMETER: return(SSL3_AD_ILLEGAL_PARAMETER); | |
1229 | case SSL_AD_UNKNOWN_CA: return(TLS1_AD_UNKNOWN_CA); | |
1230 | case SSL_AD_ACCESS_DENIED: return(TLS1_AD_ACCESS_DENIED); | |
1231 | case SSL_AD_DECODE_ERROR: return(TLS1_AD_DECODE_ERROR); | |
1232 | case SSL_AD_DECRYPT_ERROR: return(TLS1_AD_DECRYPT_ERROR); | |
657e60fa | 1233 | case SSL_AD_EXPORT_RESTRICTION: return(TLS1_AD_EXPORT_RESTRICTION); |
58964a49 RE |
1234 | case SSL_AD_PROTOCOL_VERSION: return(TLS1_AD_PROTOCOL_VERSION); |
1235 | case SSL_AD_INSUFFICIENT_SECURITY:return(TLS1_AD_INSUFFICIENT_SECURITY); | |
1236 | case SSL_AD_INTERNAL_ERROR: return(TLS1_AD_INTERNAL_ERROR); | |
657e60fa | 1237 | case SSL_AD_USER_CANCELLED: return(TLS1_AD_USER_CANCELLED); |
58964a49 | 1238 | case SSL_AD_NO_RENEGOTIATION: return(TLS1_AD_NO_RENEGOTIATION); |
d32f888d BM |
1239 | case SSL_AD_UNSUPPORTED_EXTENSION: return(TLS1_AD_UNSUPPORTED_EXTENSION); |
1240 | case SSL_AD_CERTIFICATE_UNOBTAINABLE: return(TLS1_AD_CERTIFICATE_UNOBTAINABLE); | |
f7914dbf | 1241 | case SSL_AD_UNRECOGNIZED_NAME: return(TLS1_AD_UNRECOGNIZED_NAME); |
d32f888d BM |
1242 | case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE: return(TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE); |
1243 | case SSL_AD_BAD_CERTIFICATE_HASH_VALUE: return(TLS1_AD_BAD_CERTIFICATE_HASH_VALUE); | |
ddac1974 | 1244 | case SSL_AD_UNKNOWN_PSK_IDENTITY:return(TLS1_AD_UNKNOWN_PSK_IDENTITY); |
6bfe5538 | 1245 | case SSL_AD_INAPPROPRIATE_FALLBACK:return(TLS1_AD_INAPPROPRIATE_FALLBACK); |
01c76c66 | 1246 | #if 0 /* not appropriate for TLS, not used for DTLS */ |
36d16f8e BL |
1247 | case DTLS1_AD_MISSING_HANDSHAKE_MESSAGE: return |
1248 | (DTLS1_AD_MISSING_HANDSHAKE_MESSAGE); | |
01c76c66 | 1249 | #endif |
58964a49 RE |
1250 | default: return(-1); |
1251 | } | |
1252 | } |