2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright 2005 Nokia. All rights reserved.
5 * Licensed under the Apache License 2.0 (the "License"). You may not use
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
13 #include "record/record_locl.h"
14 #include "internal/ktls.h"
15 #include "internal/cryptlib.h"
16 #include <openssl/comp.h>
17 #include <openssl/evp.h>
18 #include <openssl/kdf.h>
19 #include <openssl/rand.h>
20 #include <openssl/obj_mac.h>
21 #include <openssl/trace.h>
23 /* seed1 through seed5 are concatenated */
24 static int tls1_PRF(SSL *s,
25 const void *seed1, size_t seed1_len,
26 const void *seed2, size_t seed2_len,
27 const void *seed3, size_t seed3_len,
28 const void *seed4, size_t seed4_len,
29 const void *seed5, size_t seed5_len,
30 const unsigned char *sec, size_t slen,
31 unsigned char *out, size_t olen, int fatal)
33 const EVP_MD *md = ssl_prf_md(s);
34 EVP_PKEY_CTX *pctx = NULL;
38 /* Should never happen */
40 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_PRF,
41 ERR_R_INTERNAL_ERROR);
43 SSLerr(SSL_F_TLS1_PRF, ERR_R_INTERNAL_ERROR);
46 pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_TLS1_PRF, NULL);
47 if (pctx == NULL || EVP_PKEY_derive_init(pctx) <= 0
48 || EVP_PKEY_CTX_set_tls1_prf_md(pctx, md) <= 0
49 || EVP_PKEY_CTX_set1_tls1_prf_secret(pctx, sec, (int)slen) <= 0
50 || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed1, (int)seed1_len) <= 0
51 || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed2, (int)seed2_len) <= 0
52 || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed3, (int)seed3_len) <= 0
53 || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed4, (int)seed4_len) <= 0
54 || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed5, (int)seed5_len) <= 0
55 || EVP_PKEY_derive(pctx, out, &olen) <= 0) {
57 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_PRF,
58 ERR_R_INTERNAL_ERROR);
60 SSLerr(SSL_F_TLS1_PRF, ERR_R_INTERNAL_ERROR);
67 EVP_PKEY_CTX_free(pctx);
71 static int tls1_generate_key_block(SSL *s, unsigned char *km, size_t num)
75 /* Calls SSLfatal() as required */
77 TLS_MD_KEY_EXPANSION_CONST,
78 TLS_MD_KEY_EXPANSION_CONST_SIZE, s->s3->server_random,
79 SSL3_RANDOM_SIZE, s->s3->client_random, SSL3_RANDOM_SIZE,
80 NULL, 0, NULL, 0, s->session->master_key,
81 s->session->master_key_length, km, num, 1);
86 int tls1_change_cipher_state(SSL *s, int which)
88 unsigned char *p, *mac_secret;
89 unsigned char *ms, *key, *iv;
92 #ifndef OPENSSL_NO_COMP
97 size_t *mac_secret_size;
100 size_t n, i, j, k, cl;
102 #ifndef OPENSSL_NO_KTLS
103 struct tls12_crypto_info_aes_gcm_128 crypto_info;
105 unsigned char geniv[12];
108 c = s->s3->tmp.new_sym_enc;
109 m = s->s3->tmp.new_hash;
110 mac_type = s->s3->tmp.new_mac_pkey_type;
111 #ifndef OPENSSL_NO_COMP
112 comp = s->s3->tmp.new_compression;
115 if (which & SSL3_CC_READ) {
117 s->s3->flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC_READ;
119 s->s3->flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC_READ;
121 if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC)
122 s->mac_flags |= SSL_MAC_FLAG_READ_MAC_STREAM;
124 s->mac_flags &= ~SSL_MAC_FLAG_READ_MAC_STREAM;
126 if (s->enc_read_ctx != NULL) {
128 } else if ((s->enc_read_ctx = EVP_CIPHER_CTX_new()) == NULL) {
129 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
130 ERR_R_MALLOC_FAILURE);
134 * make sure it's initialised in case we exit later with an error
136 EVP_CIPHER_CTX_reset(s->enc_read_ctx);
138 dd = s->enc_read_ctx;
139 mac_ctx = ssl_replace_hash(&s->read_hash, NULL);
140 if (mac_ctx == NULL) {
141 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
142 ERR_R_INTERNAL_ERROR);
145 #ifndef OPENSSL_NO_COMP
146 COMP_CTX_free(s->expand);
149 s->expand = COMP_CTX_new(comp->method);
150 if (s->expand == NULL) {
151 SSLfatal(s, SSL_AD_INTERNAL_ERROR,
152 SSL_F_TLS1_CHANGE_CIPHER_STATE,
153 SSL_R_COMPRESSION_LIBRARY_ERROR);
159 * this is done by dtls1_reset_seq_numbers for DTLS
162 RECORD_LAYER_reset_read_sequence(&s->rlayer);
163 mac_secret = &(s->s3->read_mac_secret[0]);
164 mac_secret_size = &(s->s3->read_mac_secret_size);
166 s->statem.enc_write_state = ENC_WRITE_STATE_INVALID;
168 s->s3->flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE;
170 s->s3->flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE;
172 if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC)
173 s->mac_flags |= SSL_MAC_FLAG_WRITE_MAC_STREAM;
175 s->mac_flags &= ~SSL_MAC_FLAG_WRITE_MAC_STREAM;
176 if (s->enc_write_ctx != NULL && !SSL_IS_DTLS(s)) {
178 } else if ((s->enc_write_ctx = EVP_CIPHER_CTX_new()) == NULL) {
179 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
180 ERR_R_MALLOC_FAILURE);
183 dd = s->enc_write_ctx;
184 if (SSL_IS_DTLS(s)) {
185 mac_ctx = EVP_MD_CTX_new();
186 if (mac_ctx == NULL) {
187 SSLfatal(s, SSL_AD_INTERNAL_ERROR,
188 SSL_F_TLS1_CHANGE_CIPHER_STATE,
189 ERR_R_MALLOC_FAILURE);
192 s->write_hash = mac_ctx;
194 mac_ctx = ssl_replace_hash(&s->write_hash, NULL);
195 if (mac_ctx == NULL) {
196 SSLfatal(s, SSL_AD_INTERNAL_ERROR,
197 SSL_F_TLS1_CHANGE_CIPHER_STATE,
198 ERR_R_MALLOC_FAILURE);
202 #ifndef OPENSSL_NO_COMP
203 COMP_CTX_free(s->compress);
206 s->compress = COMP_CTX_new(comp->method);
207 if (s->compress == NULL) {
208 SSLfatal(s, SSL_AD_INTERNAL_ERROR,
209 SSL_F_TLS1_CHANGE_CIPHER_STATE,
210 SSL_R_COMPRESSION_LIBRARY_ERROR);
216 * this is done by dtls1_reset_seq_numbers for DTLS
219 RECORD_LAYER_reset_write_sequence(&s->rlayer);
220 mac_secret = &(s->s3->write_mac_secret[0]);
221 mac_secret_size = &(s->s3->write_mac_secret_size);
225 EVP_CIPHER_CTX_reset(dd);
227 p = s->s3->tmp.key_block;
228 i = *mac_secret_size = s->s3->tmp.new_mac_secret_size;
230 /* TODO(size_t): convert me */
231 cl = EVP_CIPHER_key_length(c);
233 /* Was j=(exp)?5:EVP_CIPHER_key_length(c); */
234 /* If GCM/CCM mode only part of IV comes from PRF */
235 if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE)
236 k = EVP_GCM_TLS_FIXED_IV_LEN;
237 else if (EVP_CIPHER_mode(c) == EVP_CIPH_CCM_MODE)
238 k = EVP_CCM_TLS_FIXED_IV_LEN;
240 k = EVP_CIPHER_iv_length(c);
241 if ((which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) ||
242 (which == SSL3_CHANGE_CIPHER_SERVER_READ)) {
259 if (n > s->s3->tmp.key_block_length) {
260 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
261 ERR_R_INTERNAL_ERROR);
265 memcpy(mac_secret, ms, i);
267 if (!(EVP_CIPHER_flags(c) & EVP_CIPH_FLAG_AEAD_CIPHER)) {
268 /* TODO(size_t): Convert this function */
269 mac_key = EVP_PKEY_new_mac_key(mac_type, NULL, mac_secret,
270 (int)*mac_secret_size);
272 || EVP_DigestSignInit(mac_ctx, NULL, m, NULL, mac_key) <= 0) {
273 EVP_PKEY_free(mac_key);
274 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
275 ERR_R_INTERNAL_ERROR);
278 EVP_PKEY_free(mac_key);
281 OSSL_TRACE_BEGIN(TLS) {
282 BIO_printf(trc_out, "which = %04X, mac key:\n", which);
283 BIO_dump_indent(trc_out, ms, i, 4);
284 } OSSL_TRACE_END(TLS);
286 if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE) {
287 if (!EVP_CipherInit_ex(dd, c, NULL, key, NULL, (which & SSL3_CC_WRITE))
288 || !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_GCM_SET_IV_FIXED, (int)k,
290 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
291 ERR_R_INTERNAL_ERROR);
294 } else if (EVP_CIPHER_mode(c) == EVP_CIPH_CCM_MODE) {
297 new_cipher->algorithm_enc & (SSL_AES128CCM8 | SSL_AES256CCM8))
298 taglen = EVP_CCM8_TLS_TAG_LEN;
300 taglen = EVP_CCM_TLS_TAG_LEN;
301 if (!EVP_CipherInit_ex(dd, c, NULL, NULL, NULL, (which & SSL3_CC_WRITE))
302 || !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_IVLEN, 12, NULL)
303 || !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_TAG, taglen, NULL)
304 || !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_CCM_SET_IV_FIXED, (int)k, iv)
305 || !EVP_CipherInit_ex(dd, NULL, NULL, key, NULL, -1)) {
306 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
307 ERR_R_INTERNAL_ERROR);
311 if (!EVP_CipherInit_ex(dd, c, NULL, key, iv, (which & SSL3_CC_WRITE))) {
312 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
313 ERR_R_INTERNAL_ERROR);
317 /* Needed for "composite" AEADs, such as RC4-HMAC-MD5 */
318 if ((EVP_CIPHER_flags(c) & EVP_CIPH_FLAG_AEAD_CIPHER) && *mac_secret_size
319 && !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_MAC_KEY,
320 (int)*mac_secret_size, mac_secret)) {
321 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
322 ERR_R_INTERNAL_ERROR);
325 #ifndef OPENSSL_NO_KTLS
329 if ((which & SSL3_CC_READ) ||
330 ((which & SSL3_CC_WRITE) && (s->mode & SSL_MODE_NO_KTLS_TX)))
333 /* ktls supports only the maximum fragment size */
334 if (ssl_get_max_send_fragment(s) != SSL3_RT_MAX_PLAIN_LENGTH)
337 /* check that cipher is AES_GCM_128 */
338 if (EVP_CIPHER_nid(c) != NID_aes_128_gcm
339 || EVP_CIPHER_mode(c) != EVP_CIPH_GCM_MODE
340 || EVP_CIPHER_key_length(c) != TLS_CIPHER_AES_GCM_128_KEY_SIZE)
343 /* check version is 1.2 */
344 if (s->version != TLS1_2_VERSION)
348 if (!ossl_assert(wbio != NULL)) {
349 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
350 ERR_R_INTERNAL_ERROR);
354 /* All future data will get encrypted by ktls. Flush the BIO or skip ktls */
355 if (BIO_flush(wbio) <= 0)
358 /* ktls doesn't support renegotiation */
359 if (BIO_get_ktls_send(s->wbio)) {
360 SSLfatal(s, SSL_AD_NO_RENEGOTIATION, SSL_F_TLS1_CHANGE_CIPHER_STATE,
361 ERR_R_INTERNAL_ERROR);
365 memset(&crypto_info, 0, sizeof(crypto_info));
366 crypto_info.info.cipher_type = TLS_CIPHER_AES_GCM_128;
367 crypto_info.info.version = s->version;
369 EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_GET_IV,
370 EVP_GCM_TLS_FIXED_IV_LEN + EVP_GCM_TLS_EXPLICIT_IV_LEN,
372 memcpy(crypto_info.iv, geniv + EVP_GCM_TLS_FIXED_IV_LEN,
373 TLS_CIPHER_AES_GCM_128_IV_SIZE);
374 memcpy(crypto_info.salt, geniv, TLS_CIPHER_AES_GCM_128_SALT_SIZE);
375 memcpy(crypto_info.key, key, EVP_CIPHER_key_length(c));
376 memcpy(crypto_info.rec_seq, &s->rlayer.write_sequence,
377 TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE);
379 /* ktls works with user provided buffers directly */
380 if (BIO_set_ktls(wbio, &crypto_info, which & SSL3_CC_WRITE)) {
381 ssl3_release_write_buffer(s);
382 SSL_set_options(s, SSL_OP_NO_RENEGOTIATION);
386 #endif /* OPENSSL_NO_KTLS */
387 s->statem.enc_write_state = ENC_WRITE_STATE_VALID;
389 OSSL_TRACE_BEGIN(TLS) {
390 BIO_printf(trc_out, "which = %04X, key:\n", which);
391 BIO_dump_indent(trc_out, key, EVP_CIPHER_key_length(c), 4);
392 BIO_printf(trc_out, "iv:\n");
393 BIO_dump_indent(trc_out, iv, k, 4);
394 } OSSL_TRACE_END(TLS);
401 int tls1_setup_key_block(SSL *s)
407 int mac_type = NID_undef;
408 size_t num, mac_secret_size = 0;
411 if (s->s3->tmp.key_block_length != 0)
414 if (!ssl_cipher_get_evp(s->session, &c, &hash, &mac_type, &mac_secret_size,
415 &comp, s->ext.use_etm)) {
416 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_SETUP_KEY_BLOCK,
417 SSL_R_CIPHER_OR_HASH_UNAVAILABLE);
421 s->s3->tmp.new_sym_enc = c;
422 s->s3->tmp.new_hash = hash;
423 s->s3->tmp.new_mac_pkey_type = mac_type;
424 s->s3->tmp.new_mac_secret_size = mac_secret_size;
425 num = EVP_CIPHER_key_length(c) + mac_secret_size + EVP_CIPHER_iv_length(c);
428 ssl3_cleanup_key_block(s);
430 if ((p = OPENSSL_malloc(num)) == NULL) {
431 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_SETUP_KEY_BLOCK,
432 ERR_R_MALLOC_FAILURE);
436 s->s3->tmp.key_block_length = num;
437 s->s3->tmp.key_block = p;
439 OSSL_TRACE_BEGIN(TLS) {
440 BIO_printf(trc_out, "client random\n");
441 BIO_dump_indent(trc_out, s->s3->client_random, SSL3_RANDOM_SIZE, 4);
442 BIO_printf(trc_out, "server random\n");
443 BIO_dump_indent(trc_out, s->s3->server_random, SSL3_RANDOM_SIZE, 4);
444 BIO_printf(trc_out, "master key\n");
445 BIO_dump_indent(trc_out,
446 s->session->master_key,
447 s->session->master_key_length, 4);
448 } OSSL_TRACE_END(TLS);
450 if (!tls1_generate_key_block(s, p, num)) {
451 /* SSLfatal() already called */
455 OSSL_TRACE_BEGIN(TLS) {
456 BIO_printf(trc_out, "key block\n");
457 BIO_dump_indent(trc_out, p, num, 4);
458 } OSSL_TRACE_END(TLS);
460 if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS)
461 && s->method->version <= TLS1_VERSION) {
463 * enable vulnerability countermeasure for CBC ciphers with known-IV
464 * problem (http://www.openssl.org/~bodo/tls-cbc.txt)
466 s->s3->need_empty_fragments = 1;
468 if (s->session->cipher != NULL) {
469 if (s->session->cipher->algorithm_enc == SSL_eNULL)
470 s->s3->need_empty_fragments = 0;
472 #ifndef OPENSSL_NO_RC4
473 if (s->session->cipher->algorithm_enc == SSL_RC4)
474 s->s3->need_empty_fragments = 0;
484 size_t tls1_final_finish_mac(SSL *s, const char *str, size_t slen,
488 unsigned char hash[EVP_MAX_MD_SIZE];
490 if (!ssl3_digest_cached_records(s, 0)) {
491 /* SSLfatal() already called */
495 if (!ssl_handshake_hash(s, hash, sizeof(hash), &hashlen)) {
496 /* SSLfatal() already called */
500 if (!tls1_PRF(s, str, slen, hash, hashlen, NULL, 0, NULL, 0, NULL, 0,
501 s->session->master_key, s->session->master_key_length,
502 out, TLS1_FINISH_MAC_LENGTH, 1)) {
503 /* SSLfatal() already called */
506 OPENSSL_cleanse(hash, hashlen);
507 return TLS1_FINISH_MAC_LENGTH;
510 int tls1_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,
511 size_t len, size_t *secret_size)
513 if (s->session->flags & SSL_SESS_FLAG_EXTMS) {
514 unsigned char hash[EVP_MAX_MD_SIZE * 2];
517 * Digest cached records keeping record buffer (if present): this wont
518 * affect client auth because we're freezing the buffer at the same
519 * point (after client key exchange and before certificate verify)
521 if (!ssl3_digest_cached_records(s, 1)
522 || !ssl_handshake_hash(s, hash, sizeof(hash), &hashlen)) {
523 /* SSLfatal() already called */
526 OSSL_TRACE_BEGIN(TLS) {
527 BIO_printf(trc_out, "Handshake hashes:\n");
528 BIO_dump(trc_out, (char *)hash, hashlen);
529 } OSSL_TRACE_END(TLS);
531 TLS_MD_EXTENDED_MASTER_SECRET_CONST,
532 TLS_MD_EXTENDED_MASTER_SECRET_CONST_SIZE,
536 NULL, 0, p, len, out,
537 SSL3_MASTER_SECRET_SIZE, 1)) {
538 /* SSLfatal() already called */
541 OPENSSL_cleanse(hash, hashlen);
544 TLS_MD_MASTER_SECRET_CONST,
545 TLS_MD_MASTER_SECRET_CONST_SIZE,
546 s->s3->client_random, SSL3_RANDOM_SIZE,
548 s->s3->server_random, SSL3_RANDOM_SIZE,
549 NULL, 0, p, len, out,
550 SSL3_MASTER_SECRET_SIZE, 1)) {
551 /* SSLfatal() already called */
556 OSSL_TRACE_BEGIN(TLS) {
557 BIO_printf(trc_out, "Premaster Secret:\n");
558 BIO_dump_indent(trc_out, p, len, 4);
559 BIO_printf(trc_out, "Client Random:\n");
560 BIO_dump_indent(trc_out, s->s3->client_random, SSL3_RANDOM_SIZE, 4);
561 BIO_printf(trc_out, "Server Random:\n");
562 BIO_dump_indent(trc_out, s->s3->server_random, SSL3_RANDOM_SIZE, 4);
563 BIO_printf(trc_out, "Master Secret:\n");
564 BIO_dump_indent(trc_out,
565 s->session->master_key,
566 SSL3_MASTER_SECRET_SIZE, 4);
567 } OSSL_TRACE_END(TLS);
569 *secret_size = SSL3_MASTER_SECRET_SIZE;
573 int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
574 const char *label, size_t llen,
575 const unsigned char *context,
576 size_t contextlen, int use_context)
578 unsigned char *val = NULL;
579 size_t vallen = 0, currentvalpos;
583 * construct PRF arguments we construct the PRF argument ourself rather
584 * than passing separate values into the TLS PRF to ensure that the
585 * concatenation of values does not create a prohibited label.
587 vallen = llen + SSL3_RANDOM_SIZE * 2;
589 vallen += 2 + contextlen;
592 val = OPENSSL_malloc(vallen);
596 memcpy(val + currentvalpos, (unsigned char *)label, llen);
597 currentvalpos += llen;
598 memcpy(val + currentvalpos, s->s3->client_random, SSL3_RANDOM_SIZE);
599 currentvalpos += SSL3_RANDOM_SIZE;
600 memcpy(val + currentvalpos, s->s3->server_random, SSL3_RANDOM_SIZE);
601 currentvalpos += SSL3_RANDOM_SIZE;
604 val[currentvalpos] = (contextlen >> 8) & 0xff;
606 val[currentvalpos] = contextlen & 0xff;
608 if ((contextlen > 0) || (context != NULL)) {
609 memcpy(val + currentvalpos, context, contextlen);
614 * disallow prohibited labels note that SSL3_RANDOM_SIZE > max(prohibited
615 * label len) = 15, so size of val > max(prohibited label len) = 15 and
616 * the comparisons won't have buffer overflow
618 if (memcmp(val, TLS_MD_CLIENT_FINISH_CONST,
619 TLS_MD_CLIENT_FINISH_CONST_SIZE) == 0)
621 if (memcmp(val, TLS_MD_SERVER_FINISH_CONST,
622 TLS_MD_SERVER_FINISH_CONST_SIZE) == 0)
624 if (memcmp(val, TLS_MD_MASTER_SECRET_CONST,
625 TLS_MD_MASTER_SECRET_CONST_SIZE) == 0)
627 if (memcmp(val, TLS_MD_EXTENDED_MASTER_SECRET_CONST,
628 TLS_MD_EXTENDED_MASTER_SECRET_CONST_SIZE) == 0)
630 if (memcmp(val, TLS_MD_KEY_EXPANSION_CONST,
631 TLS_MD_KEY_EXPANSION_CONST_SIZE) == 0)
640 s->session->master_key, s->session->master_key_length,
645 SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL, SSL_R_TLS_ILLEGAL_EXPORTER_LABEL);
649 SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL, ERR_R_MALLOC_FAILURE);
652 OPENSSL_clear_free(val, vallen);
656 int tls1_alert_code(int code)
659 case SSL_AD_CLOSE_NOTIFY:
660 return SSL3_AD_CLOSE_NOTIFY;
661 case SSL_AD_UNEXPECTED_MESSAGE:
662 return SSL3_AD_UNEXPECTED_MESSAGE;
663 case SSL_AD_BAD_RECORD_MAC:
664 return SSL3_AD_BAD_RECORD_MAC;
665 case SSL_AD_DECRYPTION_FAILED:
666 return TLS1_AD_DECRYPTION_FAILED;
667 case SSL_AD_RECORD_OVERFLOW:
668 return TLS1_AD_RECORD_OVERFLOW;
669 case SSL_AD_DECOMPRESSION_FAILURE:
670 return SSL3_AD_DECOMPRESSION_FAILURE;
671 case SSL_AD_HANDSHAKE_FAILURE:
672 return SSL3_AD_HANDSHAKE_FAILURE;
673 case SSL_AD_NO_CERTIFICATE:
675 case SSL_AD_BAD_CERTIFICATE:
676 return SSL3_AD_BAD_CERTIFICATE;
677 case SSL_AD_UNSUPPORTED_CERTIFICATE:
678 return SSL3_AD_UNSUPPORTED_CERTIFICATE;
679 case SSL_AD_CERTIFICATE_REVOKED:
680 return SSL3_AD_CERTIFICATE_REVOKED;
681 case SSL_AD_CERTIFICATE_EXPIRED:
682 return SSL3_AD_CERTIFICATE_EXPIRED;
683 case SSL_AD_CERTIFICATE_UNKNOWN:
684 return SSL3_AD_CERTIFICATE_UNKNOWN;
685 case SSL_AD_ILLEGAL_PARAMETER:
686 return SSL3_AD_ILLEGAL_PARAMETER;
687 case SSL_AD_UNKNOWN_CA:
688 return TLS1_AD_UNKNOWN_CA;
689 case SSL_AD_ACCESS_DENIED:
690 return TLS1_AD_ACCESS_DENIED;
691 case SSL_AD_DECODE_ERROR:
692 return TLS1_AD_DECODE_ERROR;
693 case SSL_AD_DECRYPT_ERROR:
694 return TLS1_AD_DECRYPT_ERROR;
695 case SSL_AD_EXPORT_RESTRICTION:
696 return TLS1_AD_EXPORT_RESTRICTION;
697 case SSL_AD_PROTOCOL_VERSION:
698 return TLS1_AD_PROTOCOL_VERSION;
699 case SSL_AD_INSUFFICIENT_SECURITY:
700 return TLS1_AD_INSUFFICIENT_SECURITY;
701 case SSL_AD_INTERNAL_ERROR:
702 return TLS1_AD_INTERNAL_ERROR;
703 case SSL_AD_USER_CANCELLED:
704 return TLS1_AD_USER_CANCELLED;
705 case SSL_AD_NO_RENEGOTIATION:
706 return TLS1_AD_NO_RENEGOTIATION;
707 case SSL_AD_UNSUPPORTED_EXTENSION:
708 return TLS1_AD_UNSUPPORTED_EXTENSION;
709 case SSL_AD_CERTIFICATE_UNOBTAINABLE:
710 return TLS1_AD_CERTIFICATE_UNOBTAINABLE;
711 case SSL_AD_UNRECOGNIZED_NAME:
712 return TLS1_AD_UNRECOGNIZED_NAME;
713 case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE:
714 return TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE;
715 case SSL_AD_BAD_CERTIFICATE_HASH_VALUE:
716 return TLS1_AD_BAD_CERTIFICATE_HASH_VALUE;
717 case SSL_AD_UNKNOWN_PSK_IDENTITY:
718 return TLS1_AD_UNKNOWN_PSK_IDENTITY;
719 case SSL_AD_INAPPROPRIATE_FALLBACK:
720 return TLS1_AD_INAPPROPRIATE_FALLBACK;
721 case SSL_AD_NO_APPLICATION_PROTOCOL:
722 return TLS1_AD_NO_APPLICATION_PROTOCOL;
723 case SSL_AD_CERTIFICATE_REQUIRED:
724 return SSL_AD_HANDSHAKE_FAILURE;