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846e33c7 | 1 | /* |
da1c088f | 2 | * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved. |
c80149d9 | 3 | * Copyright 2005 Nokia. All rights reserved. |
82b0bf0b | 4 | * |
2c18d164 | 5 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
846e33c7 RS |
6 | * this file except in compliance with the License. You can obtain a copy |
7 | * in the file LICENSE in the source distribution or at | |
8 | * https://www.openssl.org/source/license.html | |
82b0bf0b | 9 | */ |
846e33c7 | 10 | |
d02b48c6 | 11 | #include <stdio.h> |
706457b7 | 12 | #include "ssl_local.h" |
7b63c0fa | 13 | #include <openssl/evp.h> |
dbad1690 | 14 | #include <openssl/md5.h> |
d5e5e2ff | 15 | #include <openssl/core_names.h> |
67dc995e | 16 | #include "internal/cryptlib.h" |
d02b48c6 | 17 | |
38b051a1 | 18 | static int ssl3_generate_key_block(SSL_CONNECTION *s, unsigned char *km, int num) |
0f113f3e | 19 | { |
62ba8345 | 20 | const EVP_MD *md5 = NULL, *sha1 = NULL; |
6e59a892 RL |
21 | EVP_MD_CTX *m5; |
22 | EVP_MD_CTX *s1; | |
0f113f3e MC |
23 | unsigned char buf[16], smd[SHA_DIGEST_LENGTH]; |
24 | unsigned char c = 'A'; | |
c19e6da9 | 25 | unsigned int i, k; |
6e59a892 | 26 | int ret = 0; |
38b051a1 | 27 | SSL_CTX *sctx = SSL_CONNECTION_GET_CTX(s); |
58964a49 | 28 | |
ca570cfd | 29 | #ifdef CHARSET_EBCDIC |
0f113f3e | 30 | c = os_toascii[c]; /* 'A' in ASCII */ |
ca570cfd | 31 | #endif |
0f113f3e | 32 | k = 0; |
38b051a1 TM |
33 | md5 = ssl_evp_md_fetch(sctx->libctx, NID_md5, sctx->propq); |
34 | sha1 = ssl_evp_md_fetch(sctx->libctx, NID_sha1, sctx->propq); | |
bfb0641f RL |
35 | m5 = EVP_MD_CTX_new(); |
36 | s1 = EVP_MD_CTX_new(); | |
62ba8345 | 37 | if (md5 == NULL || sha1 == NULL || m5 == NULL || s1 == NULL) { |
e077455e | 38 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_EVP_LIB); |
6e59a892 RL |
39 | goto err; |
40 | } | |
0f113f3e MC |
41 | for (i = 0; (int)i < num; i += MD5_DIGEST_LENGTH) { |
42 | k++; | |
a6fd7c1d | 43 | if (k > sizeof(buf)) { |
0f113f3e | 44 | /* bug: 'buf' is too small for this ciphersuite */ |
c48ffbcc | 45 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); |
a6fd7c1d | 46 | goto err; |
0f113f3e MC |
47 | } |
48 | ||
c19e6da9 | 49 | memset(buf, c, k); |
0f113f3e | 50 | c++; |
62ba8345 | 51 | if (!EVP_DigestInit_ex(s1, sha1, NULL) |
d166ed8c DSH |
52 | || !EVP_DigestUpdate(s1, buf, k) |
53 | || !EVP_DigestUpdate(s1, s->session->master_key, | |
54 | s->session->master_key_length) | |
555cbb32 TS |
55 | || !EVP_DigestUpdate(s1, s->s3.server_random, SSL3_RANDOM_SIZE) |
56 | || !EVP_DigestUpdate(s1, s->s3.client_random, SSL3_RANDOM_SIZE) | |
d166ed8c | 57 | || !EVP_DigestFinal_ex(s1, smd, NULL) |
47b4ccea | 58 | || !EVP_DigestInit_ex(m5, md5, NULL) |
d166ed8c DSH |
59 | || !EVP_DigestUpdate(m5, s->session->master_key, |
60 | s->session->master_key_length) | |
d4d2f3a4 | 61 | || !EVP_DigestUpdate(m5, smd, SHA_DIGEST_LENGTH)) { |
c48ffbcc | 62 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); |
d166ed8c | 63 | goto err; |
d4d2f3a4 | 64 | } |
0f113f3e | 65 | if ((int)(i + MD5_DIGEST_LENGTH) > num) { |
d4d2f3a4 | 66 | if (!EVP_DigestFinal_ex(m5, smd, NULL)) { |
c48ffbcc | 67 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); |
d166ed8c | 68 | goto err; |
d4d2f3a4 | 69 | } |
0f113f3e | 70 | memcpy(km, smd, (num - i)); |
d166ed8c | 71 | } else { |
d4d2f3a4 | 72 | if (!EVP_DigestFinal_ex(m5, km, NULL)) { |
c48ffbcc | 73 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); |
d166ed8c | 74 | goto err; |
d4d2f3a4 | 75 | } |
d166ed8c | 76 | } |
0f113f3e MC |
77 | |
78 | km += MD5_DIGEST_LENGTH; | |
79 | } | |
e0f9bf1d | 80 | OPENSSL_cleanse(smd, sizeof(smd)); |
6e59a892 RL |
81 | ret = 1; |
82 | err: | |
bfb0641f RL |
83 | EVP_MD_CTX_free(m5); |
84 | EVP_MD_CTX_free(s1); | |
c8f6c28a | 85 | ssl_evp_md_free(md5); |
62ba8345 | 86 | ssl_evp_md_free(sha1); |
6e59a892 | 87 | return ret; |
0f113f3e | 88 | } |
58964a49 | 89 | |
38b051a1 | 90 | int ssl3_change_cipher_state(SSL_CONNECTION *s, int which) |
0f113f3e MC |
91 | { |
92 | unsigned char *p, *mac_secret; | |
10560aed MC |
93 | size_t md_len; |
94 | unsigned char *key, *iv; | |
10560aed | 95 | const EVP_CIPHER *ciph; |
976b263d | 96 | const SSL_COMP *comp = NULL; |
10560aed | 97 | const EVP_MD *md; |
8c1a5343 | 98 | int mdi; |
10560aed | 99 | size_t n, iv_len, key_len; |
2b71b042 MC |
100 | int direction = (which & SSL3_CC_READ) != 0 ? OSSL_RECORD_DIRECTION_READ |
101 | : OSSL_RECORD_DIRECTION_WRITE; | |
0f113f3e | 102 | |
10560aed MC |
103 | ciph = s->s3.tmp.new_sym_enc; |
104 | md = s->s3.tmp.new_hash; | |
0f113f3e | 105 | /* m == NULL will lead to a crash later */ |
10560aed | 106 | if (!ossl_assert(md != NULL)) { |
c48ffbcc | 107 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); |
f63a17d6 | 108 | goto err; |
380a522f | 109 | } |
09b6c2ef | 110 | #ifndef OPENSSL_NO_COMP |
10560aed | 111 | comp = s->s3.tmp.new_compression; |
09b6c2ef | 112 | #endif |
0f113f3e | 113 | |
555cbb32 | 114 | p = s->s3.tmp.key_block; |
10560aed | 115 | mdi = EVP_MD_get_size(md); |
f63a17d6 | 116 | if (mdi < 0) { |
c48ffbcc | 117 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); |
f63a17d6 MC |
118 | goto err; |
119 | } | |
10560aed MC |
120 | md_len = (size_t)mdi; |
121 | key_len = EVP_CIPHER_get_key_length(ciph); | |
122 | iv_len = EVP_CIPHER_get_iv_length(ciph); | |
0f113f3e MC |
123 | if ((which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) || |
124 | (which == SSL3_CHANGE_CIPHER_SERVER_READ)) { | |
10560aed MC |
125 | mac_secret = &(p[0]); |
126 | n = md_len + md_len; | |
0f113f3e | 127 | key = &(p[n]); |
10560aed | 128 | n += key_len + key_len; |
0f113f3e | 129 | iv = &(p[n]); |
10560aed | 130 | n += iv_len + iv_len; |
0f113f3e | 131 | } else { |
10560aed MC |
132 | n = md_len; |
133 | mac_secret = &(p[n]); | |
134 | n += md_len + key_len; | |
0f113f3e | 135 | key = &(p[n]); |
10560aed | 136 | n += key_len + iv_len; |
0f113f3e | 137 | iv = &(p[n]); |
10560aed | 138 | n += iv_len; |
0f113f3e MC |
139 | } |
140 | ||
555cbb32 | 141 | if (n > s->s3.tmp.key_block_length) { |
c48ffbcc | 142 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); |
f63a17d6 | 143 | goto err; |
0f113f3e MC |
144 | } |
145 | ||
2b71b042 MC |
146 | if (!ssl_set_new_record_layer(s, SSL3_VERSION, |
147 | direction, | |
148 | OSSL_RECORD_PROTECTION_LEVEL_APPLICATION, | |
3f9175c7 MC |
149 | NULL, 0, key, key_len, iv, iv_len, mac_secret, |
150 | md_len, ciph, 0, NID_undef, md, comp, NULL)) { | |
2b71b042 MC |
151 | /* SSLfatal already called */ |
152 | goto err; | |
153 | } | |
10560aed | 154 | |
208fb891 | 155 | return 1; |
0f113f3e | 156 | err: |
26a7d938 | 157 | return 0; |
0f113f3e | 158 | } |
d02b48c6 | 159 | |
38b051a1 | 160 | int ssl3_setup_key_block(SSL_CONNECTION *s) |
0f113f3e MC |
161 | { |
162 | unsigned char *p; | |
163 | const EVP_CIPHER *c; | |
164 | const EVP_MD *hash; | |
165 | int num; | |
166 | int ret = 0; | |
167 | SSL_COMP *comp; | |
168 | ||
555cbb32 | 169 | if (s->s3.tmp.key_block_length != 0) |
208fb891 | 170 | return 1; |
0f113f3e | 171 | |
38b051a1 TM |
172 | if (!ssl_cipher_get_evp(SSL_CONNECTION_GET_CTX(s), s->session, &c, &hash, |
173 | NULL, NULL, &comp, 0)) { | |
5a2d0ef3 RL |
174 | /* Error is already recorded */ |
175 | SSLfatal_alert(s, SSL_AD_INTERNAL_ERROR); | |
26a7d938 | 176 | return 0; |
0f113f3e MC |
177 | } |
178 | ||
c8f6c28a | 179 | ssl_evp_cipher_free(s->s3.tmp.new_sym_enc); |
555cbb32 | 180 | s->s3.tmp.new_sym_enc = c; |
c8f6c28a | 181 | ssl_evp_md_free(s->s3.tmp.new_hash); |
555cbb32 | 182 | s->s3.tmp.new_hash = hash; |
09b6c2ef | 183 | #ifdef OPENSSL_NO_COMP |
555cbb32 | 184 | s->s3.tmp.new_compression = NULL; |
09b6c2ef | 185 | #else |
555cbb32 | 186 | s->s3.tmp.new_compression = comp; |
09b6c2ef | 187 | #endif |
d02b48c6 | 188 | |
ed576acd | 189 | num = EVP_MD_get_size(hash); |
0f113f3e MC |
190 | if (num < 0) |
191 | return 0; | |
192 | ||
ed576acd | 193 | num = EVP_CIPHER_get_key_length(c) + num + EVP_CIPHER_get_iv_length(c); |
0f113f3e | 194 | num *= 2; |
0eab41fb | 195 | |
0f113f3e | 196 | ssl3_cleanup_key_block(s); |
d02b48c6 | 197 | |
f63a17d6 | 198 | if ((p = OPENSSL_malloc(num)) == NULL) { |
e077455e | 199 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB); |
f63a17d6 MC |
200 | return 0; |
201 | } | |
d02b48c6 | 202 | |
555cbb32 TS |
203 | s->s3.tmp.key_block_length = num; |
204 | s->s3.tmp.key_block = p; | |
d02b48c6 | 205 | |
d4d2f3a4 | 206 | /* Calls SSLfatal() as required */ |
0f113f3e | 207 | ret = ssl3_generate_key_block(s, p, num); |
d02b48c6 | 208 | |
0f113f3e | 209 | return ret; |
0f113f3e | 210 | } |
d02b48c6 | 211 | |
38b051a1 | 212 | void ssl3_cleanup_key_block(SSL_CONNECTION *s) |
0f113f3e | 213 | { |
555cbb32 TS |
214 | OPENSSL_clear_free(s->s3.tmp.key_block, s->s3.tmp.key_block_length); |
215 | s->s3.tmp.key_block = NULL; | |
216 | s->s3.tmp.key_block_length = 0; | |
0f113f3e | 217 | } |
d02b48c6 | 218 | |
38b051a1 | 219 | int ssl3_init_finished_mac(SSL_CONNECTION *s) |
0f113f3e | 220 | { |
2c4a056f MC |
221 | BIO *buf = BIO_new(BIO_s_mem()); |
222 | ||
223 | if (buf == NULL) { | |
e077455e | 224 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_BIO_LIB); |
2c4a056f MC |
225 | return 0; |
226 | } | |
85fb6fda | 227 | ssl3_free_digest_list(s); |
555cbb32 TS |
228 | s->s3.handshake_buffer = buf; |
229 | (void)BIO_set_close(s->s3.handshake_buffer, BIO_CLOSE); | |
2c4a056f | 230 | return 1; |
0f113f3e MC |
231 | } |
232 | ||
c7238204 DSH |
233 | /* |
234 | * Free digest list. Also frees handshake buffer since they are always freed | |
235 | * together. | |
236 | */ | |
237 | ||
38b051a1 | 238 | void ssl3_free_digest_list(SSL_CONNECTION *s) |
0f113f3e | 239 | { |
555cbb32 TS |
240 | BIO_free(s->s3.handshake_buffer); |
241 | s->s3.handshake_buffer = NULL; | |
242 | EVP_MD_CTX_free(s->s3.handshake_dgst); | |
243 | s->s3.handshake_dgst = NULL; | |
0f113f3e | 244 | } |
81025661 | 245 | |
38b051a1 | 246 | int ssl3_finish_mac(SSL_CONNECTION *s, const unsigned char *buf, size_t len) |
0f113f3e | 247 | { |
f63a17d6 MC |
248 | int ret; |
249 | ||
555cbb32 | 250 | if (s->s3.handshake_dgst == NULL) { |
d166ed8c | 251 | /* Note: this writes to a memory BIO so a failure is a fatal error */ |
f63a17d6 | 252 | if (len > INT_MAX) { |
c48ffbcc | 253 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_R_OVERFLOW_ERROR); |
7ee8627f | 254 | return 0; |
f63a17d6 | 255 | } |
555cbb32 | 256 | ret = BIO_write(s->s3.handshake_buffer, (void *)buf, (int)len); |
f63a17d6 | 257 | if (ret <= 0 || ret != (int)len) { |
c48ffbcc | 258 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); |
f63a17d6 MC |
259 | return 0; |
260 | } | |
7ee8627f | 261 | } else { |
555cbb32 | 262 | ret = EVP_DigestUpdate(s->s3.handshake_dgst, buf, len); |
f63a17d6 | 263 | if (!ret) { |
c48ffbcc | 264 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); |
f63a17d6 MC |
265 | return 0; |
266 | } | |
7ee8627f | 267 | } |
f63a17d6 | 268 | return 1; |
0f113f3e | 269 | } |
6ba71a71 | 270 | |
38b051a1 | 271 | int ssl3_digest_cached_records(SSL_CONNECTION *s, int keep) |
0f113f3e | 272 | { |
0f113f3e MC |
273 | const EVP_MD *md; |
274 | long hdatalen; | |
275 | void *hdata; | |
276 | ||
555cbb32 TS |
277 | if (s->s3.handshake_dgst == NULL) { |
278 | hdatalen = BIO_get_mem_data(s->s3.handshake_buffer, &hdata); | |
124037fd | 279 | if (hdatalen <= 0) { |
c48ffbcc | 280 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_R_BAD_HANDSHAKE_LENGTH); |
124037fd DSH |
281 | return 0; |
282 | } | |
0f113f3e | 283 | |
555cbb32 TS |
284 | s->s3.handshake_dgst = EVP_MD_CTX_new(); |
285 | if (s->s3.handshake_dgst == NULL) { | |
e077455e | 286 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_EVP_LIB); |
28ba2541 DSH |
287 | return 0; |
288 | } | |
289 | ||
290 | md = ssl_handshake_md(s); | |
7cd1420b | 291 | if (md == NULL) { |
c48ffbcc | 292 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, |
7cd1420b MC |
293 | SSL_R_NO_SUITABLE_DIGEST_ALGORITHM); |
294 | return 0; | |
295 | } | |
296 | if (!EVP_DigestInit_ex(s->s3.handshake_dgst, md, NULL) | |
555cbb32 | 297 | || !EVP_DigestUpdate(s->s3.handshake_dgst, hdata, hdatalen)) { |
c48ffbcc | 298 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); |
28ba2541 | 299 | return 0; |
0f113f3e MC |
300 | } |
301 | } | |
124037fd | 302 | if (keep == 0) { |
555cbb32 TS |
303 | BIO_free(s->s3.handshake_buffer); |
304 | s->s3.handshake_buffer = NULL; | |
0f113f3e MC |
305 | } |
306 | ||
307 | return 1; | |
308 | } | |
6ba71a71 | 309 | |
d5e5e2ff SL |
310 | void ssl3_digest_master_key_set_params(const SSL_SESSION *session, |
311 | OSSL_PARAM params[]) | |
312 | { | |
313 | int n = 0; | |
83b4a243 SL |
314 | params[n++] = OSSL_PARAM_construct_octet_string(OSSL_DIGEST_PARAM_SSL3_MS, |
315 | (void *)session->master_key, | |
4e7991b4 | 316 | session->master_key_length); |
d5e5e2ff SL |
317 | params[n++] = OSSL_PARAM_construct_end(); |
318 | } | |
319 | ||
38b051a1 | 320 | size_t ssl3_final_finish_mac(SSL_CONNECTION *s, const char *sender, size_t len, |
6db6bc5a | 321 | unsigned char *p) |
0f113f3e | 322 | { |
28ba2541 | 323 | int ret; |
6e59a892 | 324 | EVP_MD_CTX *ctx = NULL; |
0f113f3e | 325 | |
d4d2f3a4 MC |
326 | if (!ssl3_digest_cached_records(s, 0)) { |
327 | /* SSLfatal() already called */ | |
124037fd | 328 | return 0; |
d4d2f3a4 | 329 | } |
0f113f3e | 330 | |
ed576acd | 331 | if (EVP_MD_CTX_get_type(s->s3.handshake_dgst) != NID_md5_sha1) { |
c48ffbcc | 332 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_R_NO_REQUIRED_DIGEST); |
0f113f3e MC |
333 | return 0; |
334 | } | |
28ba2541 | 335 | |
bfb0641f | 336 | ctx = EVP_MD_CTX_new(); |
6e59a892 | 337 | if (ctx == NULL) { |
e077455e | 338 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_EVP_LIB); |
6e59a892 RL |
339 | return 0; |
340 | } | |
555cbb32 | 341 | if (!EVP_MD_CTX_copy_ex(ctx, s->s3.handshake_dgst)) { |
c48ffbcc | 342 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); |
7d0effea AP |
343 | ret = 0; |
344 | goto err; | |
d356dc56 | 345 | } |
28ba2541 | 346 | |
ed576acd | 347 | ret = EVP_MD_CTX_get_size(ctx); |
28ba2541 | 348 | if (ret < 0) { |
c48ffbcc | 349 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); |
7d0effea AP |
350 | ret = 0; |
351 | goto err; | |
28ba2541 | 352 | } |
0f113f3e | 353 | |
d5e5e2ff SL |
354 | if (sender != NULL) { |
355 | OSSL_PARAM digest_cmd_params[3]; | |
356 | ||
357 | ssl3_digest_master_key_set_params(s->session, digest_cmd_params); | |
83b4a243 | 358 | |
d5e5e2ff SL |
359 | if (EVP_DigestUpdate(ctx, sender, len) <= 0 |
360 | || EVP_MD_CTX_set_params(ctx, digest_cmd_params) <= 0 | |
361 | || EVP_DigestFinal_ex(ctx, p, NULL) <= 0) { | |
c48ffbcc | 362 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); |
d5e5e2ff SL |
363 | ret = 0; |
364 | } | |
5f3d93e4 | 365 | } |
0f113f3e | 366 | |
7d0effea | 367 | err: |
bfb0641f | 368 | EVP_MD_CTX_free(ctx); |
0f113f3e | 369 | |
28ba2541 | 370 | return ret; |
0f113f3e | 371 | } |
d02b48c6 | 372 | |
38b051a1 TM |
373 | int ssl3_generate_master_secret(SSL_CONNECTION *s, unsigned char *out, |
374 | unsigned char *p, | |
8c1a5343 | 375 | size_t len, size_t *secret_size) |
0f113f3e MC |
376 | { |
377 | static const unsigned char *salt[3] = { | |
ca570cfd | 378 | #ifndef CHARSET_EBCDIC |
0f113f3e MC |
379 | (const unsigned char *)"A", |
380 | (const unsigned char *)"BB", | |
381 | (const unsigned char *)"CCC", | |
ca570cfd | 382 | #else |
0f113f3e MC |
383 | (const unsigned char *)"\x41", |
384 | (const unsigned char *)"\x42\x42", | |
385 | (const unsigned char *)"\x43\x43\x43", | |
ca570cfd | 386 | #endif |
0f113f3e MC |
387 | }; |
388 | unsigned char buf[EVP_MAX_MD_SIZE]; | |
bfb0641f | 389 | EVP_MD_CTX *ctx = EVP_MD_CTX_new(); |
8c1a5343 | 390 | int i, ret = 1; |
0f113f3e | 391 | unsigned int n; |
8c1a5343 | 392 | size_t ret_secret_size = 0; |
d02b48c6 | 393 | |
6e59a892 | 394 | if (ctx == NULL) { |
e077455e | 395 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_EVP_LIB); |
6e59a892 RL |
396 | return 0; |
397 | } | |
0f113f3e | 398 | for (i = 0; i < 3; i++) { |
38b051a1 | 399 | if (EVP_DigestInit_ex(ctx, SSL_CONNECTION_GET_CTX(s)->sha1, NULL) <= 0 |
a230b26e EK |
400 | || EVP_DigestUpdate(ctx, salt[i], |
401 | strlen((const char *)salt[i])) <= 0 | |
402 | || EVP_DigestUpdate(ctx, p, len) <= 0 | |
555cbb32 | 403 | || EVP_DigestUpdate(ctx, &(s->s3.client_random[0]), |
a230b26e | 404 | SSL3_RANDOM_SIZE) <= 0 |
555cbb32 | 405 | || EVP_DigestUpdate(ctx, &(s->s3.server_random[0]), |
a230b26e EK |
406 | SSL3_RANDOM_SIZE) <= 0 |
407 | || EVP_DigestFinal_ex(ctx, buf, &n) <= 0 | |
38b051a1 | 408 | || EVP_DigestInit_ex(ctx, SSL_CONNECTION_GET_CTX(s)->md5, NULL) <= 0 |
a230b26e EK |
409 | || EVP_DigestUpdate(ctx, p, len) <= 0 |
410 | || EVP_DigestUpdate(ctx, buf, n) <= 0 | |
411 | || EVP_DigestFinal_ex(ctx, out, &n) <= 0) { | |
c48ffbcc | 412 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); |
5f3d93e4 MC |
413 | ret = 0; |
414 | break; | |
415 | } | |
0f113f3e | 416 | out += n; |
8c1a5343 | 417 | ret_secret_size += n; |
0f113f3e | 418 | } |
bfb0641f | 419 | EVP_MD_CTX_free(ctx); |
1cf218bc | 420 | |
e0f9bf1d | 421 | OPENSSL_cleanse(buf, sizeof(buf)); |
8c1a5343 MC |
422 | if (ret) |
423 | *secret_size = ret_secret_size; | |
424 | return ret; | |
0f113f3e | 425 | } |
d02b48c6 | 426 | |
6b691a5c | 427 | int ssl3_alert_code(int code) |
0f113f3e MC |
428 | { |
429 | switch (code) { | |
430 | case SSL_AD_CLOSE_NOTIFY: | |
26a7d938 | 431 | return SSL3_AD_CLOSE_NOTIFY; |
0f113f3e | 432 | case SSL_AD_UNEXPECTED_MESSAGE: |
26a7d938 | 433 | return SSL3_AD_UNEXPECTED_MESSAGE; |
0f113f3e | 434 | case SSL_AD_BAD_RECORD_MAC: |
26a7d938 | 435 | return SSL3_AD_BAD_RECORD_MAC; |
0f113f3e | 436 | case SSL_AD_DECRYPTION_FAILED: |
26a7d938 | 437 | return SSL3_AD_BAD_RECORD_MAC; |
0f113f3e | 438 | case SSL_AD_RECORD_OVERFLOW: |
26a7d938 | 439 | return SSL3_AD_BAD_RECORD_MAC; |
0f113f3e | 440 | case SSL_AD_DECOMPRESSION_FAILURE: |
26a7d938 | 441 | return SSL3_AD_DECOMPRESSION_FAILURE; |
0f113f3e | 442 | case SSL_AD_HANDSHAKE_FAILURE: |
26a7d938 | 443 | return SSL3_AD_HANDSHAKE_FAILURE; |
0f113f3e | 444 | case SSL_AD_NO_CERTIFICATE: |
26a7d938 | 445 | return SSL3_AD_NO_CERTIFICATE; |
0f113f3e | 446 | case SSL_AD_BAD_CERTIFICATE: |
26a7d938 | 447 | return SSL3_AD_BAD_CERTIFICATE; |
0f113f3e | 448 | case SSL_AD_UNSUPPORTED_CERTIFICATE: |
26a7d938 | 449 | return SSL3_AD_UNSUPPORTED_CERTIFICATE; |
0f113f3e | 450 | case SSL_AD_CERTIFICATE_REVOKED: |
26a7d938 | 451 | return SSL3_AD_CERTIFICATE_REVOKED; |
0f113f3e | 452 | case SSL_AD_CERTIFICATE_EXPIRED: |
26a7d938 | 453 | return SSL3_AD_CERTIFICATE_EXPIRED; |
0f113f3e | 454 | case SSL_AD_CERTIFICATE_UNKNOWN: |
26a7d938 | 455 | return SSL3_AD_CERTIFICATE_UNKNOWN; |
0f113f3e | 456 | case SSL_AD_ILLEGAL_PARAMETER: |
26a7d938 | 457 | return SSL3_AD_ILLEGAL_PARAMETER; |
0f113f3e | 458 | case SSL_AD_UNKNOWN_CA: |
26a7d938 | 459 | return SSL3_AD_BAD_CERTIFICATE; |
0f113f3e | 460 | case SSL_AD_ACCESS_DENIED: |
26a7d938 | 461 | return SSL3_AD_HANDSHAKE_FAILURE; |
0f113f3e | 462 | case SSL_AD_DECODE_ERROR: |
26a7d938 | 463 | return SSL3_AD_HANDSHAKE_FAILURE; |
0f113f3e | 464 | case SSL_AD_DECRYPT_ERROR: |
26a7d938 | 465 | return SSL3_AD_HANDSHAKE_FAILURE; |
0f113f3e | 466 | case SSL_AD_EXPORT_RESTRICTION: |
26a7d938 | 467 | return SSL3_AD_HANDSHAKE_FAILURE; |
0f113f3e | 468 | case SSL_AD_PROTOCOL_VERSION: |
26a7d938 | 469 | return SSL3_AD_HANDSHAKE_FAILURE; |
0f113f3e | 470 | case SSL_AD_INSUFFICIENT_SECURITY: |
26a7d938 | 471 | return SSL3_AD_HANDSHAKE_FAILURE; |
0f113f3e | 472 | case SSL_AD_INTERNAL_ERROR: |
26a7d938 | 473 | return SSL3_AD_HANDSHAKE_FAILURE; |
0f113f3e | 474 | case SSL_AD_USER_CANCELLED: |
26a7d938 | 475 | return SSL3_AD_HANDSHAKE_FAILURE; |
0f113f3e | 476 | case SSL_AD_NO_RENEGOTIATION: |
26a7d938 | 477 | return -1; /* Don't send it :-) */ |
0f113f3e | 478 | case SSL_AD_UNSUPPORTED_EXTENSION: |
26a7d938 | 479 | return SSL3_AD_HANDSHAKE_FAILURE; |
0f113f3e | 480 | case SSL_AD_CERTIFICATE_UNOBTAINABLE: |
26a7d938 | 481 | return SSL3_AD_HANDSHAKE_FAILURE; |
0f113f3e | 482 | case SSL_AD_UNRECOGNIZED_NAME: |
26a7d938 | 483 | return SSL3_AD_HANDSHAKE_FAILURE; |
0f113f3e | 484 | case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE: |
26a7d938 | 485 | return SSL3_AD_HANDSHAKE_FAILURE; |
0f113f3e | 486 | case SSL_AD_BAD_CERTIFICATE_HASH_VALUE: |
26a7d938 | 487 | return SSL3_AD_HANDSHAKE_FAILURE; |
0f113f3e | 488 | case SSL_AD_UNKNOWN_PSK_IDENTITY: |
26a7d938 | 489 | return TLS1_AD_UNKNOWN_PSK_IDENTITY; |
0f113f3e | 490 | case SSL_AD_INAPPROPRIATE_FALLBACK: |
26a7d938 | 491 | return TLS1_AD_INAPPROPRIATE_FALLBACK; |
06217867 | 492 | case SSL_AD_NO_APPLICATION_PROTOCOL: |
26a7d938 | 493 | return TLS1_AD_NO_APPLICATION_PROTOCOL; |
42c28b63 MC |
494 | case SSL_AD_CERTIFICATE_REQUIRED: |
495 | return SSL_AD_HANDSHAKE_FAILURE; | |
1376708c BK |
496 | case TLS13_AD_MISSING_EXTENSION: |
497 | return SSL_AD_HANDSHAKE_FAILURE; | |
0f113f3e | 498 | default: |
26a7d938 | 499 | return -1; |
0f113f3e MC |
500 | } |
501 | } |