2 * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright 2005 Nokia. All rights reserved.
5 * Licensed under the OpenSSL license (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
12 #include "ssl_local.h"
13 #include "record/record_local.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>
22 /* seed1 through seed5 are concatenated */
23 static int tls1_PRF(SSL *s,
24 const void *seed1, size_t seed1_len,
25 const void *seed2, size_t seed2_len,
26 const void *seed3, size_t seed3_len,
27 const void *seed4, size_t seed4_len,
28 const void *seed5, size_t seed5_len,
29 const unsigned char *sec, size_t slen,
30 unsigned char *out, size_t olen, int fatal)
32 const EVP_MD *md = ssl_prf_md(s);
33 EVP_PKEY_CTX *pctx = NULL;
37 /* Should never happen */
39 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_PRF,
40 ERR_R_INTERNAL_ERROR);
42 SSLerr(SSL_F_TLS1_PRF, ERR_R_INTERNAL_ERROR);
45 pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_TLS1_PRF, NULL);
46 if (pctx == NULL || EVP_PKEY_derive_init(pctx) <= 0
47 || EVP_PKEY_CTX_set_tls1_prf_md(pctx, md) <= 0
48 || EVP_PKEY_CTX_set1_tls1_prf_secret(pctx, sec, (int)slen) <= 0
49 || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed1, (int)seed1_len) <= 0
50 || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed2, (int)seed2_len) <= 0
51 || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed3, (int)seed3_len) <= 0
52 || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed4, (int)seed4_len) <= 0
53 || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed5, (int)seed5_len) <= 0
54 || EVP_PKEY_derive(pctx, out, &olen) <= 0) {
56 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_PRF,
57 ERR_R_INTERNAL_ERROR);
59 SSLerr(SSL_F_TLS1_PRF, ERR_R_INTERNAL_ERROR);
66 EVP_PKEY_CTX_free(pctx);
70 static int tls1_generate_key_block(SSL *s, unsigned char *km, size_t num)
74 /* Calls SSLfatal() as required */
76 TLS_MD_KEY_EXPANSION_CONST,
77 TLS_MD_KEY_EXPANSION_CONST_SIZE, s->s3->server_random,
78 SSL3_RANDOM_SIZE, s->s3->client_random, SSL3_RANDOM_SIZE,
79 NULL, 0, NULL, 0, s->session->master_key,
80 s->session->master_key_length, km, num, 1);
85 #ifndef OPENSSL_NO_KTLS
87 * Count the number of records that were not processed yet from record boundary.
89 * This function assumes that there are only fully formed records read in the
90 * record layer. If read_ahead is enabled, then this might be false and this
93 # ifndef OPENSSL_NO_KTLS_RX
94 static int count_unprocessed_records(SSL *s)
96 SSL3_BUFFER *rbuf = RECORD_LAYER_get_rbuf(&s->rlayer);
100 if (!PACKET_buf_init(&pkt, rbuf->buf + rbuf->offset, rbuf->left))
103 while (PACKET_remaining(&pkt) > 0) {
104 /* Skip record type and version */
105 if (!PACKET_forward(&pkt, 3))
108 /* Read until next record */
109 if (PACKET_get_length_prefixed_2(&pkt, &subpkt))
120 int tls1_change_cipher_state(SSL *s, int which)
122 unsigned char *p, *mac_secret;
123 unsigned char *ms, *key, *iv;
126 #ifndef OPENSSL_NO_COMP
127 const SSL_COMP *comp;
131 size_t *mac_secret_size;
134 size_t n, i, j, k, cl;
136 #ifndef OPENSSL_NO_KTLS
137 ktls_crypto_info_t crypto_info;
138 unsigned char *rec_seq;
140 # ifndef OPENSSL_NO_KTLS_RX
141 int count_unprocessed;
147 c = s->s3->tmp.new_sym_enc;
148 m = s->s3->tmp.new_hash;
149 mac_type = s->s3->tmp.new_mac_pkey_type;
150 #ifndef OPENSSL_NO_COMP
151 comp = s->s3->tmp.new_compression;
154 if (which & SSL3_CC_READ) {
156 s->s3->flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC_READ;
158 s->s3->flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC_READ;
160 if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC)
161 s->mac_flags |= SSL_MAC_FLAG_READ_MAC_STREAM;
163 s->mac_flags &= ~SSL_MAC_FLAG_READ_MAC_STREAM;
165 if (s->enc_read_ctx != NULL) {
167 } else if ((s->enc_read_ctx = EVP_CIPHER_CTX_new()) == NULL) {
168 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
169 ERR_R_MALLOC_FAILURE);
173 * make sure it's initialised in case we exit later with an error
175 EVP_CIPHER_CTX_reset(s->enc_read_ctx);
177 dd = s->enc_read_ctx;
178 mac_ctx = ssl_replace_hash(&s->read_hash, NULL);
181 #ifndef OPENSSL_NO_COMP
182 COMP_CTX_free(s->expand);
185 s->expand = COMP_CTX_new(comp->method);
186 if (s->expand == NULL) {
187 SSLfatal(s, SSL_AD_INTERNAL_ERROR,
188 SSL_F_TLS1_CHANGE_CIPHER_STATE,
189 SSL_R_COMPRESSION_LIBRARY_ERROR);
195 * this is done by dtls1_reset_seq_numbers for DTLS
198 RECORD_LAYER_reset_read_sequence(&s->rlayer);
199 mac_secret = &(s->s3->read_mac_secret[0]);
200 mac_secret_size = &(s->s3->read_mac_secret_size);
202 s->statem.enc_write_state = ENC_WRITE_STATE_INVALID;
204 s->s3->flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE;
206 s->s3->flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE;
208 if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC)
209 s->mac_flags |= SSL_MAC_FLAG_WRITE_MAC_STREAM;
211 s->mac_flags &= ~SSL_MAC_FLAG_WRITE_MAC_STREAM;
212 if (s->enc_write_ctx != NULL && !SSL_IS_DTLS(s)) {
214 } else if ((s->enc_write_ctx = EVP_CIPHER_CTX_new()) == NULL) {
215 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
216 ERR_R_MALLOC_FAILURE);
219 dd = s->enc_write_ctx;
220 if (SSL_IS_DTLS(s)) {
221 mac_ctx = EVP_MD_CTX_new();
222 if (mac_ctx == NULL) {
223 SSLfatal(s, SSL_AD_INTERNAL_ERROR,
224 SSL_F_TLS1_CHANGE_CIPHER_STATE,
225 ERR_R_MALLOC_FAILURE);
228 s->write_hash = mac_ctx;
230 mac_ctx = ssl_replace_hash(&s->write_hash, NULL);
231 if (mac_ctx == NULL) {
232 SSLfatal(s, SSL_AD_INTERNAL_ERROR,
233 SSL_F_TLS1_CHANGE_CIPHER_STATE,
234 ERR_R_MALLOC_FAILURE);
238 #ifndef OPENSSL_NO_COMP
239 COMP_CTX_free(s->compress);
242 s->compress = COMP_CTX_new(comp->method);
243 if (s->compress == NULL) {
244 SSLfatal(s, SSL_AD_INTERNAL_ERROR,
245 SSL_F_TLS1_CHANGE_CIPHER_STATE,
246 SSL_R_COMPRESSION_LIBRARY_ERROR);
252 * this is done by dtls1_reset_seq_numbers for DTLS
255 RECORD_LAYER_reset_write_sequence(&s->rlayer);
256 mac_secret = &(s->s3->write_mac_secret[0]);
257 mac_secret_size = &(s->s3->write_mac_secret_size);
261 EVP_CIPHER_CTX_reset(dd);
263 p = s->s3->tmp.key_block;
264 i = *mac_secret_size = s->s3->tmp.new_mac_secret_size;
266 /* TODO(size_t): convert me */
267 cl = EVP_CIPHER_key_length(c);
269 /* Was j=(exp)?5:EVP_CIPHER_key_length(c); */
270 /* If GCM/CCM mode only part of IV comes from PRF */
271 if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE)
272 k = EVP_GCM_TLS_FIXED_IV_LEN;
273 else if (EVP_CIPHER_mode(c) == EVP_CIPH_CCM_MODE)
274 k = EVP_CCM_TLS_FIXED_IV_LEN;
276 k = EVP_CIPHER_iv_length(c);
277 if ((which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) ||
278 (which == SSL3_CHANGE_CIPHER_SERVER_READ)) {
295 if (n > s->s3->tmp.key_block_length) {
296 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
297 ERR_R_INTERNAL_ERROR);
301 memcpy(mac_secret, ms, i);
303 if (!(EVP_CIPHER_flags(c) & EVP_CIPH_FLAG_AEAD_CIPHER)) {
304 /* TODO(size_t): Convert this function */
305 mac_key = EVP_PKEY_new_mac_key(mac_type, NULL, mac_secret,
306 (int)*mac_secret_size);
308 || EVP_DigestSignInit(mac_ctx, NULL, m, NULL, mac_key) <= 0) {
309 EVP_PKEY_free(mac_key);
310 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
311 ERR_R_INTERNAL_ERROR);
314 EVP_PKEY_free(mac_key);
317 printf("which = %04X\nmac key=", which);
320 for (z = 0; z < i; z++)
321 printf("%02X%c", ms[z], ((z + 1) % 16) ? ' ' : '\n');
325 if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE) {
326 if (!EVP_CipherInit_ex(dd, c, NULL, key, NULL, (which & SSL3_CC_WRITE))
327 || !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_GCM_SET_IV_FIXED, (int)k,
329 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
330 ERR_R_INTERNAL_ERROR);
333 } else if (EVP_CIPHER_mode(c) == EVP_CIPH_CCM_MODE) {
336 new_cipher->algorithm_enc & (SSL_AES128CCM8 | SSL_AES256CCM8))
337 taglen = EVP_CCM8_TLS_TAG_LEN;
339 taglen = EVP_CCM_TLS_TAG_LEN;
340 if (!EVP_CipherInit_ex(dd, c, NULL, NULL, NULL, (which & SSL3_CC_WRITE))
341 || !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_IVLEN, 12, NULL)
342 || !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_TAG, taglen, NULL)
343 || !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_CCM_SET_IV_FIXED, (int)k, iv)
344 || !EVP_CipherInit_ex(dd, NULL, NULL, key, NULL, -1)) {
345 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
346 ERR_R_INTERNAL_ERROR);
350 if (!EVP_CipherInit_ex(dd, c, NULL, key, iv, (which & SSL3_CC_WRITE))) {
351 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
352 ERR_R_INTERNAL_ERROR);
356 /* Needed for "composite" AEADs, such as RC4-HMAC-MD5 */
357 if ((EVP_CIPHER_flags(c) & EVP_CIPH_FLAG_AEAD_CIPHER) && *mac_secret_size
358 && !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_MAC_KEY,
359 (int)*mac_secret_size, mac_secret)) {
360 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
361 ERR_R_INTERNAL_ERROR);
364 #ifndef OPENSSL_NO_KTLS
365 if (s->compress || (s->options & SSL_OP_ENABLE_KTLS) == 0)
368 /* ktls supports only the maximum fragment size */
369 if (ssl_get_max_send_fragment(s) != SSL3_RT_MAX_PLAIN_LENGTH)
372 /* check that cipher is supported */
373 if (!ktls_check_supported_cipher(s, c, dd))
376 if (which & SSL3_CC_WRITE)
381 if (!ossl_assert(bio != NULL)) {
382 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
383 ERR_R_INTERNAL_ERROR);
387 /* All future data will get encrypted by ktls. Flush the BIO or skip ktls */
388 if (which & SSL3_CC_WRITE) {
389 if (BIO_flush(bio) <= 0)
393 /* ktls doesn't support renegotiation */
394 if ((BIO_get_ktls_send(s->wbio) && (which & SSL3_CC_WRITE)) ||
395 (BIO_get_ktls_recv(s->rbio) && (which & SSL3_CC_READ))) {
396 SSLfatal(s, SSL_AD_NO_RENEGOTIATION, SSL_F_TLS1_CHANGE_CIPHER_STATE,
397 ERR_R_INTERNAL_ERROR);
401 if (which & SSL3_CC_WRITE)
402 rl_sequence = RECORD_LAYER_get_write_sequence(&s->rlayer);
404 rl_sequence = RECORD_LAYER_get_read_sequence(&s->rlayer);
406 if (!ktls_configure_crypto(s, c, dd, rl_sequence, &crypto_info, &rec_seq,
407 iv, key, ms, *mac_secret_size))
410 if (which & SSL3_CC_READ) {
411 # ifndef OPENSSL_NO_KTLS_RX
412 count_unprocessed = count_unprocessed_records(s);
413 if (count_unprocessed < 0)
416 /* increment the crypto_info record sequence */
417 while (count_unprocessed) {
418 for (bit = 7; bit >= 0; bit--) { /* increment */
420 if (rec_seq[bit] != 0)
430 /* ktls works with user provided buffers directly */
431 if (BIO_set_ktls(bio, &crypto_info, which & SSL3_CC_WRITE)) {
432 if (which & SSL3_CC_WRITE)
433 ssl3_release_write_buffer(s);
434 SSL_set_options(s, SSL_OP_NO_RENEGOTIATION);
438 #endif /* OPENSSL_NO_KTLS */
439 s->statem.enc_write_state = ENC_WRITE_STATE_VALID;
442 printf("which = %04X\nkey=", which);
445 for (z = 0; z < EVP_CIPHER_key_length(c); z++)
446 printf("%02X%c", key[z], ((z + 1) % 16) ? ' ' : '\n');
451 for (z = 0; z < k; z++)
452 printf("%02X%c", iv[z], ((z + 1) % 16) ? ' ' : '\n');
462 int tls1_setup_key_block(SSL *s)
468 int mac_type = NID_undef;
469 size_t num, mac_secret_size = 0;
472 if (s->s3->tmp.key_block_length != 0)
475 if (!ssl_cipher_get_evp(s->session, &c, &hash, &mac_type, &mac_secret_size,
476 &comp, s->ext.use_etm)) {
477 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_SETUP_KEY_BLOCK,
478 SSL_R_CIPHER_OR_HASH_UNAVAILABLE);
482 s->s3->tmp.new_sym_enc = c;
483 s->s3->tmp.new_hash = hash;
484 s->s3->tmp.new_mac_pkey_type = mac_type;
485 s->s3->tmp.new_mac_secret_size = mac_secret_size;
486 num = EVP_CIPHER_key_length(c) + mac_secret_size + EVP_CIPHER_iv_length(c);
489 ssl3_cleanup_key_block(s);
491 if ((p = OPENSSL_malloc(num)) == NULL) {
492 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_SETUP_KEY_BLOCK,
493 ERR_R_MALLOC_FAILURE);
497 s->s3->tmp.key_block_length = num;
498 s->s3->tmp.key_block = p;
501 printf("client random\n");
504 for (z = 0; z < SSL3_RANDOM_SIZE; z++)
505 printf("%02X%c", s->s3->client_random[z],
506 ((z + 1) % 16) ? ' ' : '\n');
508 printf("server random\n");
511 for (z = 0; z < SSL3_RANDOM_SIZE; z++)
512 printf("%02X%c", s->s3->server_random[z],
513 ((z + 1) % 16) ? ' ' : '\n');
515 printf("master key\n");
518 for (z = 0; z < s->session->master_key_length; z++)
519 printf("%02X%c", s->session->master_key[z],
520 ((z + 1) % 16) ? ' ' : '\n');
523 if (!tls1_generate_key_block(s, p, num)) {
524 /* SSLfatal() already called */
528 printf("\nkey block\n");
531 for (z = 0; z < num; z++)
532 printf("%02X%c", p[z], ((z + 1) % 16) ? ' ' : '\n');
536 if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS)
537 && s->method->version <= TLS1_VERSION) {
539 * enable vulnerability countermeasure for CBC ciphers with known-IV
540 * problem (http://www.openssl.org/~bodo/tls-cbc.txt)
542 s->s3->need_empty_fragments = 1;
544 if (s->session->cipher != NULL) {
545 if (s->session->cipher->algorithm_enc == SSL_eNULL)
546 s->s3->need_empty_fragments = 0;
548 #ifndef OPENSSL_NO_RC4
549 if (s->session->cipher->algorithm_enc == SSL_RC4)
550 s->s3->need_empty_fragments = 0;
560 size_t tls1_final_finish_mac(SSL *s, const char *str, size_t slen,
564 unsigned char hash[EVP_MAX_MD_SIZE];
566 if (!ssl3_digest_cached_records(s, 0)) {
567 /* SSLfatal() already called */
571 if (!ssl_handshake_hash(s, hash, sizeof(hash), &hashlen)) {
572 /* SSLfatal() already called */
576 if (!tls1_PRF(s, str, slen, hash, hashlen, NULL, 0, NULL, 0, NULL, 0,
577 s->session->master_key, s->session->master_key_length,
578 out, TLS1_FINISH_MAC_LENGTH, 1)) {
579 /* SSLfatal() already called */
582 OPENSSL_cleanse(hash, hashlen);
583 return TLS1_FINISH_MAC_LENGTH;
586 int tls1_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,
587 size_t len, size_t *secret_size)
589 if (s->session->flags & SSL_SESS_FLAG_EXTMS) {
590 unsigned char hash[EVP_MAX_MD_SIZE * 2];
593 * Digest cached records keeping record buffer (if present): this won't
594 * affect client auth because we're freezing the buffer at the same
595 * point (after client key exchange and before certificate verify)
597 if (!ssl3_digest_cached_records(s, 1)
598 || !ssl_handshake_hash(s, hash, sizeof(hash), &hashlen)) {
599 /* SSLfatal() already called */
603 fprintf(stderr, "Handshake hashes:\n");
604 BIO_dump_fp(stderr, (char *)hash, hashlen);
607 TLS_MD_EXTENDED_MASTER_SECRET_CONST,
608 TLS_MD_EXTENDED_MASTER_SECRET_CONST_SIZE,
612 NULL, 0, p, len, out,
613 SSL3_MASTER_SECRET_SIZE, 1)) {
614 /* SSLfatal() already called */
617 OPENSSL_cleanse(hash, hashlen);
620 TLS_MD_MASTER_SECRET_CONST,
621 TLS_MD_MASTER_SECRET_CONST_SIZE,
622 s->s3->client_random, SSL3_RANDOM_SIZE,
624 s->s3->server_random, SSL3_RANDOM_SIZE,
625 NULL, 0, p, len, out,
626 SSL3_MASTER_SECRET_SIZE, 1)) {
627 /* SSLfatal() already called */
632 fprintf(stderr, "Premaster Secret:\n");
633 BIO_dump_fp(stderr, (char *)p, len);
634 fprintf(stderr, "Client Random:\n");
635 BIO_dump_fp(stderr, (char *)s->s3->client_random, SSL3_RANDOM_SIZE);
636 fprintf(stderr, "Server Random:\n");
637 BIO_dump_fp(stderr, (char *)s->s3->server_random, SSL3_RANDOM_SIZE);
638 fprintf(stderr, "Master Secret:\n");
639 BIO_dump_fp(stderr, (char *)s->session->master_key,
640 SSL3_MASTER_SECRET_SIZE);
643 *secret_size = SSL3_MASTER_SECRET_SIZE;
647 int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
648 const char *label, size_t llen,
649 const unsigned char *context,
650 size_t contextlen, int use_context)
652 unsigned char *val = NULL;
653 size_t vallen = 0, currentvalpos;
657 * construct PRF arguments we construct the PRF argument ourself rather
658 * than passing separate values into the TLS PRF to ensure that the
659 * concatenation of values does not create a prohibited label.
661 vallen = llen + SSL3_RANDOM_SIZE * 2;
663 vallen += 2 + contextlen;
666 val = OPENSSL_malloc(vallen);
670 memcpy(val + currentvalpos, (unsigned char *)label, llen);
671 currentvalpos += llen;
672 memcpy(val + currentvalpos, s->s3->client_random, SSL3_RANDOM_SIZE);
673 currentvalpos += SSL3_RANDOM_SIZE;
674 memcpy(val + currentvalpos, s->s3->server_random, SSL3_RANDOM_SIZE);
675 currentvalpos += SSL3_RANDOM_SIZE;
678 val[currentvalpos] = (contextlen >> 8) & 0xff;
680 val[currentvalpos] = contextlen & 0xff;
682 if ((contextlen > 0) || (context != NULL)) {
683 memcpy(val + currentvalpos, context, contextlen);
688 * disallow prohibited labels note that SSL3_RANDOM_SIZE > max(prohibited
689 * label len) = 15, so size of val > max(prohibited label len) = 15 and
690 * the comparisons won't have buffer overflow
692 if (memcmp(val, TLS_MD_CLIENT_FINISH_CONST,
693 TLS_MD_CLIENT_FINISH_CONST_SIZE) == 0)
695 if (memcmp(val, TLS_MD_SERVER_FINISH_CONST,
696 TLS_MD_SERVER_FINISH_CONST_SIZE) == 0)
698 if (memcmp(val, TLS_MD_MASTER_SECRET_CONST,
699 TLS_MD_MASTER_SECRET_CONST_SIZE) == 0)
701 if (memcmp(val, TLS_MD_EXTENDED_MASTER_SECRET_CONST,
702 TLS_MD_EXTENDED_MASTER_SECRET_CONST_SIZE) == 0)
704 if (memcmp(val, TLS_MD_KEY_EXPANSION_CONST,
705 TLS_MD_KEY_EXPANSION_CONST_SIZE) == 0)
714 s->session->master_key, s->session->master_key_length,
719 SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL, SSL_R_TLS_ILLEGAL_EXPORTER_LABEL);
723 SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL, ERR_R_MALLOC_FAILURE);
726 OPENSSL_clear_free(val, vallen);
730 int tls1_alert_code(int code)
733 case SSL_AD_CLOSE_NOTIFY:
734 return SSL3_AD_CLOSE_NOTIFY;
735 case SSL_AD_UNEXPECTED_MESSAGE:
736 return SSL3_AD_UNEXPECTED_MESSAGE;
737 case SSL_AD_BAD_RECORD_MAC:
738 return SSL3_AD_BAD_RECORD_MAC;
739 case SSL_AD_DECRYPTION_FAILED:
740 return TLS1_AD_DECRYPTION_FAILED;
741 case SSL_AD_RECORD_OVERFLOW:
742 return TLS1_AD_RECORD_OVERFLOW;
743 case SSL_AD_DECOMPRESSION_FAILURE:
744 return SSL3_AD_DECOMPRESSION_FAILURE;
745 case SSL_AD_HANDSHAKE_FAILURE:
746 return SSL3_AD_HANDSHAKE_FAILURE;
747 case SSL_AD_NO_CERTIFICATE:
749 case SSL_AD_BAD_CERTIFICATE:
750 return SSL3_AD_BAD_CERTIFICATE;
751 case SSL_AD_UNSUPPORTED_CERTIFICATE:
752 return SSL3_AD_UNSUPPORTED_CERTIFICATE;
753 case SSL_AD_CERTIFICATE_REVOKED:
754 return SSL3_AD_CERTIFICATE_REVOKED;
755 case SSL_AD_CERTIFICATE_EXPIRED:
756 return SSL3_AD_CERTIFICATE_EXPIRED;
757 case SSL_AD_CERTIFICATE_UNKNOWN:
758 return SSL3_AD_CERTIFICATE_UNKNOWN;
759 case SSL_AD_ILLEGAL_PARAMETER:
760 return SSL3_AD_ILLEGAL_PARAMETER;
761 case SSL_AD_UNKNOWN_CA:
762 return TLS1_AD_UNKNOWN_CA;
763 case SSL_AD_ACCESS_DENIED:
764 return TLS1_AD_ACCESS_DENIED;
765 case SSL_AD_DECODE_ERROR:
766 return TLS1_AD_DECODE_ERROR;
767 case SSL_AD_DECRYPT_ERROR:
768 return TLS1_AD_DECRYPT_ERROR;
769 case SSL_AD_EXPORT_RESTRICTION:
770 return TLS1_AD_EXPORT_RESTRICTION;
771 case SSL_AD_PROTOCOL_VERSION:
772 return TLS1_AD_PROTOCOL_VERSION;
773 case SSL_AD_INSUFFICIENT_SECURITY:
774 return TLS1_AD_INSUFFICIENT_SECURITY;
775 case SSL_AD_INTERNAL_ERROR:
776 return TLS1_AD_INTERNAL_ERROR;
777 case SSL_AD_USER_CANCELLED:
778 return TLS1_AD_USER_CANCELLED;
779 case SSL_AD_NO_RENEGOTIATION:
780 return TLS1_AD_NO_RENEGOTIATION;
781 case SSL_AD_UNSUPPORTED_EXTENSION:
782 return TLS1_AD_UNSUPPORTED_EXTENSION;
783 case SSL_AD_CERTIFICATE_UNOBTAINABLE:
784 return TLS1_AD_CERTIFICATE_UNOBTAINABLE;
785 case SSL_AD_UNRECOGNIZED_NAME:
786 return TLS1_AD_UNRECOGNIZED_NAME;
787 case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE:
788 return TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE;
789 case SSL_AD_BAD_CERTIFICATE_HASH_VALUE:
790 return TLS1_AD_BAD_CERTIFICATE_HASH_VALUE;
791 case SSL_AD_UNKNOWN_PSK_IDENTITY:
792 return TLS1_AD_UNKNOWN_PSK_IDENTITY;
793 case SSL_AD_INAPPROPRIATE_FALLBACK:
794 return TLS1_AD_INAPPROPRIATE_FALLBACK;
795 case SSL_AD_NO_APPLICATION_PROTOCOL:
796 return TLS1_AD_NO_APPLICATION_PROTOCOL;
797 case SSL_AD_CERTIFICATE_REQUIRED:
798 return SSL_AD_HANDSHAKE_FAILURE;
799 case SSL_AD_MISSING_EXTENSION:
800 return SSL_AD_HANDSHAKE_FAILURE;