2 * Copyright 1995-2016 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
13 #include <openssl/comp.h>
14 #include <openssl/evp.h>
15 #include <openssl/kdf.h>
16 #include <openssl/rand.h>
18 /* seed1 through seed5 are concatenated */
19 static int tls1_PRF(SSL *s,
20 const void *seed1, size_t seed1_len,
21 const void *seed2, size_t seed2_len,
22 const void *seed3, size_t seed3_len,
23 const void *seed4, size_t seed4_len,
24 const void *seed5, size_t seed5_len,
25 const unsigned char *sec, size_t slen,
26 unsigned char *out, size_t olen, int fatal)
28 const EVP_MD *md = ssl_prf_md(s);
29 EVP_PKEY_CTX *pctx = NULL;
33 /* Should never happen */
35 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_PRF,
36 ERR_R_INTERNAL_ERROR);
38 SSLerr(SSL_F_TLS1_PRF, ERR_R_INTERNAL_ERROR);
41 pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_TLS1_PRF, NULL);
42 if (pctx == NULL || EVP_PKEY_derive_init(pctx) <= 0
43 || EVP_PKEY_CTX_set_tls1_prf_md(pctx, md) <= 0
44 || EVP_PKEY_CTX_set1_tls1_prf_secret(pctx, sec, (int)slen) <= 0
45 || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed1, (int)seed1_len) <= 0
46 || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed2, (int)seed2_len) <= 0
47 || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed3, (int)seed3_len) <= 0
48 || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed4, (int)seed4_len) <= 0
49 || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed5, (int)seed5_len) <= 0
50 || EVP_PKEY_derive(pctx, out, &olen) <= 0) {
52 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_PRF,
53 ERR_R_INTERNAL_ERROR);
55 SSLerr(SSL_F_TLS1_PRF, ERR_R_INTERNAL_ERROR);
62 EVP_PKEY_CTX_free(pctx);
66 static int tls1_generate_key_block(SSL *s, unsigned char *km, size_t num)
70 /* Calls SSLfatal() as required */
72 TLS_MD_KEY_EXPANSION_CONST,
73 TLS_MD_KEY_EXPANSION_CONST_SIZE, s->s3->server_random,
74 SSL3_RANDOM_SIZE, s->s3->client_random, SSL3_RANDOM_SIZE,
75 NULL, 0, NULL, 0, s->session->master_key,
76 s->session->master_key_length, km, num, 1);
81 int tls1_change_cipher_state(SSL *s, int which)
83 unsigned char *p, *mac_secret;
84 unsigned char tmp1[EVP_MAX_KEY_LENGTH];
85 unsigned char tmp2[EVP_MAX_KEY_LENGTH];
86 unsigned char iv1[EVP_MAX_IV_LENGTH * 2];
87 unsigned char iv2[EVP_MAX_IV_LENGTH * 2];
88 unsigned char *ms, *key, *iv;
91 #ifndef OPENSSL_NO_COMP
96 size_t *mac_secret_size;
99 size_t n, i, j, k, cl;
102 c = s->s3->tmp.new_sym_enc;
103 m = s->s3->tmp.new_hash;
104 mac_type = s->s3->tmp.new_mac_pkey_type;
105 #ifndef OPENSSL_NO_COMP
106 comp = s->s3->tmp.new_compression;
109 if (which & SSL3_CC_READ) {
111 s->s3->flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC_READ;
113 s->s3->flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC_READ;
115 if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC)
116 s->mac_flags |= SSL_MAC_FLAG_READ_MAC_STREAM;
118 s->mac_flags &= ~SSL_MAC_FLAG_READ_MAC_STREAM;
120 if (s->enc_read_ctx != NULL) {
122 } else if ((s->enc_read_ctx = EVP_CIPHER_CTX_new()) == NULL) {
123 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
124 ERR_R_MALLOC_FAILURE);
128 * make sure it's initialised in case we exit later with an error
130 EVP_CIPHER_CTX_reset(s->enc_read_ctx);
132 dd = s->enc_read_ctx;
133 mac_ctx = ssl_replace_hash(&s->read_hash, NULL);
136 #ifndef OPENSSL_NO_COMP
137 COMP_CTX_free(s->expand);
140 s->expand = COMP_CTX_new(comp->method);
141 if (s->expand == NULL) {
142 SSLfatal(s, SSL_AD_INTERNAL_ERROR,
143 SSL_F_TLS1_CHANGE_CIPHER_STATE,
144 SSL_R_COMPRESSION_LIBRARY_ERROR);
150 * this is done by dtls1_reset_seq_numbers for DTLS
153 RECORD_LAYER_reset_read_sequence(&s->rlayer);
154 mac_secret = &(s->s3->read_mac_secret[0]);
155 mac_secret_size = &(s->s3->read_mac_secret_size);
158 s->s3->flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE;
160 s->s3->flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE;
162 if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC)
163 s->mac_flags |= SSL_MAC_FLAG_WRITE_MAC_STREAM;
165 s->mac_flags &= ~SSL_MAC_FLAG_WRITE_MAC_STREAM;
166 if (s->enc_write_ctx != NULL && !SSL_IS_DTLS(s)) {
168 } else if ((s->enc_write_ctx = EVP_CIPHER_CTX_new()) == NULL) {
169 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
170 ERR_R_MALLOC_FAILURE);
173 EVP_CIPHER_CTX_ctrl(s->enc_write_ctx, EVP_CTRL_SET_DRBG, 0, s->drbg);
174 dd = s->enc_write_ctx;
175 if (SSL_IS_DTLS(s)) {
176 mac_ctx = EVP_MD_CTX_new();
177 if (mac_ctx == NULL) {
178 SSLfatal(s, SSL_AD_INTERNAL_ERROR,
179 SSL_F_TLS1_CHANGE_CIPHER_STATE,
180 ERR_R_MALLOC_FAILURE);
183 s->write_hash = mac_ctx;
185 mac_ctx = ssl_replace_hash(&s->write_hash, NULL);
186 if (mac_ctx == NULL) {
187 SSLfatal(s, SSL_AD_INTERNAL_ERROR,
188 SSL_F_TLS1_CHANGE_CIPHER_STATE,
189 ERR_R_MALLOC_FAILURE);
193 #ifndef OPENSSL_NO_COMP
194 COMP_CTX_free(s->compress);
197 s->compress = COMP_CTX_new(comp->method);
198 if (s->compress == NULL) {
199 SSLfatal(s, SSL_AD_INTERNAL_ERROR,
200 SSL_F_TLS1_CHANGE_CIPHER_STATE,
201 SSL_R_COMPRESSION_LIBRARY_ERROR);
207 * this is done by dtls1_reset_seq_numbers for DTLS
210 RECORD_LAYER_reset_write_sequence(&s->rlayer);
211 mac_secret = &(s->s3->write_mac_secret[0]);
212 mac_secret_size = &(s->s3->write_mac_secret_size);
216 EVP_CIPHER_CTX_reset(dd);
218 p = s->s3->tmp.key_block;
219 i = *mac_secret_size = s->s3->tmp.new_mac_secret_size;
221 /* TODO(size_t): convert me */
222 cl = EVP_CIPHER_key_length(c);
224 /* Was j=(exp)?5:EVP_CIPHER_key_length(c); */
225 /* If GCM/CCM mode only part of IV comes from PRF */
226 if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE)
227 k = EVP_GCM_TLS_FIXED_IV_LEN;
228 else if (EVP_CIPHER_mode(c) == EVP_CIPH_CCM_MODE)
229 k = EVP_CCM_TLS_FIXED_IV_LEN;
231 k = EVP_CIPHER_iv_length(c);
232 if ((which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) ||
233 (which == SSL3_CHANGE_CIPHER_SERVER_READ)) {
250 if (n > s->s3->tmp.key_block_length) {
251 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
252 ERR_R_INTERNAL_ERROR);
256 memcpy(mac_secret, ms, i);
258 if (!(EVP_CIPHER_flags(c) & EVP_CIPH_FLAG_AEAD_CIPHER)) {
259 /* TODO(size_t): Convert this function */
260 mac_key = EVP_PKEY_new_private_key(mac_type, NULL,
261 mac_secret, (int)*mac_secret_size);
263 || EVP_DigestSignInit(mac_ctx, NULL, m, NULL, mac_key) <= 0) {
264 EVP_PKEY_free(mac_key);
265 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
266 ERR_R_INTERNAL_ERROR);
269 EVP_PKEY_free(mac_key);
272 printf("which = %04X\nmac key=", which);
275 for (z = 0; z < i; z++)
276 printf("%02X%c", ms[z], ((z + 1) % 16) ? ' ' : '\n');
280 if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE) {
281 if (!EVP_CipherInit_ex(dd, c, NULL, key, NULL, (which & SSL3_CC_WRITE))
282 || !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_GCM_SET_IV_FIXED, (int)k,
284 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
285 ERR_R_INTERNAL_ERROR);
288 } else if (EVP_CIPHER_mode(c) == EVP_CIPH_CCM_MODE) {
291 new_cipher->algorithm_enc & (SSL_AES128CCM8 | SSL_AES256CCM8))
292 taglen = EVP_CCM8_TLS_TAG_LEN;
294 taglen = EVP_CCM_TLS_TAG_LEN;
295 if (!EVP_CipherInit_ex(dd, c, NULL, NULL, NULL, (which & SSL3_CC_WRITE))
296 || !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_IVLEN, 12, NULL)
297 || !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_TAG, taglen, NULL)
298 || !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_CCM_SET_IV_FIXED, (int)k, iv)
299 || !EVP_CipherInit_ex(dd, NULL, NULL, key, NULL, -1)) {
300 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
301 ERR_R_INTERNAL_ERROR);
305 if (!EVP_CipherInit_ex(dd, c, NULL, key, iv, (which & SSL3_CC_WRITE))) {
306 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
307 ERR_R_INTERNAL_ERROR);
311 /* Needed for "composite" AEADs, such as RC4-HMAC-MD5 */
312 if ((EVP_CIPHER_flags(c) & EVP_CIPH_FLAG_AEAD_CIPHER) && *mac_secret_size
313 && !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_MAC_KEY,
314 (int)*mac_secret_size, mac_secret)) {
315 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
316 ERR_R_INTERNAL_ERROR);
321 printf("which = %04X\nkey=", which);
324 for (z = 0; z < EVP_CIPHER_key_length(c); z++)
325 printf("%02X%c", key[z], ((z + 1) % 16) ? ' ' : '\n');
330 for (z = 0; z < k; z++)
331 printf("%02X%c", iv[z], ((z + 1) % 16) ? ' ' : '\n');
336 OPENSSL_cleanse(tmp1, sizeof(tmp1));
337 OPENSSL_cleanse(tmp2, sizeof(tmp1));
338 OPENSSL_cleanse(iv1, sizeof(iv1));
339 OPENSSL_cleanse(iv2, sizeof(iv2));
342 OPENSSL_cleanse(tmp1, sizeof(tmp1));
343 OPENSSL_cleanse(tmp2, sizeof(tmp1));
344 OPENSSL_cleanse(iv1, sizeof(iv1));
345 OPENSSL_cleanse(iv2, sizeof(iv2));
349 int tls1_setup_key_block(SSL *s)
355 int mac_type = NID_undef;
356 size_t num, mac_secret_size = 0;
359 if (s->s3->tmp.key_block_length != 0)
362 if (!ssl_cipher_get_evp(s->session, &c, &hash, &mac_type, &mac_secret_size,
363 &comp, s->ext.use_etm)) {
364 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_SETUP_KEY_BLOCK,
365 SSL_R_CIPHER_OR_HASH_UNAVAILABLE);
369 s->s3->tmp.new_sym_enc = c;
370 s->s3->tmp.new_hash = hash;
371 s->s3->tmp.new_mac_pkey_type = mac_type;
372 s->s3->tmp.new_mac_secret_size = mac_secret_size;
373 num = EVP_CIPHER_key_length(c) + mac_secret_size + EVP_CIPHER_iv_length(c);
376 ssl3_cleanup_key_block(s);
378 if ((p = OPENSSL_malloc(num)) == NULL) {
379 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_SETUP_KEY_BLOCK,
380 ERR_R_MALLOC_FAILURE);
384 s->s3->tmp.key_block_length = num;
385 s->s3->tmp.key_block = p;
388 printf("client random\n");
391 for (z = 0; z < SSL3_RANDOM_SIZE; z++)
392 printf("%02X%c", s->s3->client_random[z],
393 ((z + 1) % 16) ? ' ' : '\n');
395 printf("server random\n");
398 for (z = 0; z < SSL3_RANDOM_SIZE; z++)
399 printf("%02X%c", s->s3->server_random[z],
400 ((z + 1) % 16) ? ' ' : '\n');
402 printf("master key\n");
405 for (z = 0; z < s->session->master_key_length; z++)
406 printf("%02X%c", s->session->master_key[z],
407 ((z + 1) % 16) ? ' ' : '\n');
410 if (!tls1_generate_key_block(s, p, num)) {
411 /* SSLfatal() already called */
415 printf("\nkey block\n");
418 for (z = 0; z < num; z++)
419 printf("%02X%c", p[z], ((z + 1) % 16) ? ' ' : '\n');
423 if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS)
424 && s->method->version <= TLS1_VERSION) {
426 * enable vulnerability countermeasure for CBC ciphers with known-IV
427 * problem (http://www.openssl.org/~bodo/tls-cbc.txt)
429 s->s3->need_empty_fragments = 1;
431 if (s->session->cipher != NULL) {
432 if (s->session->cipher->algorithm_enc == SSL_eNULL)
433 s->s3->need_empty_fragments = 0;
435 #ifndef OPENSSL_NO_RC4
436 if (s->session->cipher->algorithm_enc == SSL_RC4)
437 s->s3->need_empty_fragments = 0;
447 size_t tls1_final_finish_mac(SSL *s, const char *str, size_t slen,
451 unsigned char hash[EVP_MAX_MD_SIZE];
453 if (!ssl3_digest_cached_records(s, 0)) {
454 /* SSLfatal() already called */
458 if (!ssl_handshake_hash(s, hash, sizeof(hash), &hashlen)) {
459 /* SSLfatal() already called */
463 if (!tls1_PRF(s, str, slen, hash, hashlen, NULL, 0, NULL, 0, NULL, 0,
464 s->session->master_key, s->session->master_key_length,
465 out, TLS1_FINISH_MAC_LENGTH, 1)) {
466 /* SSLfatal() already called */
469 OPENSSL_cleanse(hash, hashlen);
470 return TLS1_FINISH_MAC_LENGTH;
473 int tls1_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,
474 size_t len, size_t *secret_size)
476 if (s->session->flags & SSL_SESS_FLAG_EXTMS) {
477 unsigned char hash[EVP_MAX_MD_SIZE * 2];
480 * Digest cached records keeping record buffer (if present): this wont
481 * affect client auth because we're freezing the buffer at the same
482 * point (after client key exchange and before certificate verify)
484 if (!ssl3_digest_cached_records(s, 1)
485 || !ssl_handshake_hash(s, hash, sizeof(hash), &hashlen)) {
486 /* SSLfatal() already called */
490 fprintf(stderr, "Handshake hashes:\n");
491 BIO_dump_fp(stderr, (char *)hash, hashlen);
494 TLS_MD_EXTENDED_MASTER_SECRET_CONST,
495 TLS_MD_EXTENDED_MASTER_SECRET_CONST_SIZE,
499 NULL, 0, p, len, out,
500 SSL3_MASTER_SECRET_SIZE, 1)) {
501 /* SSLfatal() already called */
504 OPENSSL_cleanse(hash, hashlen);
507 TLS_MD_MASTER_SECRET_CONST,
508 TLS_MD_MASTER_SECRET_CONST_SIZE,
509 s->s3->client_random, SSL3_RANDOM_SIZE,
511 s->s3->server_random, SSL3_RANDOM_SIZE,
512 NULL, 0, p, len, out,
513 SSL3_MASTER_SECRET_SIZE, 1)) {
514 /* SSLfatal() already called */
519 fprintf(stderr, "Premaster Secret:\n");
520 BIO_dump_fp(stderr, (char *)p, len);
521 fprintf(stderr, "Client Random:\n");
522 BIO_dump_fp(stderr, (char *)s->s3->client_random, SSL3_RANDOM_SIZE);
523 fprintf(stderr, "Server Random:\n");
524 BIO_dump_fp(stderr, (char *)s->s3->server_random, SSL3_RANDOM_SIZE);
525 fprintf(stderr, "Master Secret:\n");
526 BIO_dump_fp(stderr, (char *)s->session->master_key,
527 SSL3_MASTER_SECRET_SIZE);
530 *secret_size = SSL3_MASTER_SECRET_SIZE;
534 int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
535 const char *label, size_t llen,
536 const unsigned char *context,
537 size_t contextlen, int use_context)
539 unsigned char *val = NULL;
540 size_t vallen = 0, currentvalpos;
544 * construct PRF arguments we construct the PRF argument ourself rather
545 * than passing separate values into the TLS PRF to ensure that the
546 * concatenation of values does not create a prohibited label.
548 vallen = llen + SSL3_RANDOM_SIZE * 2;
550 vallen += 2 + contextlen;
553 val = OPENSSL_malloc(vallen);
557 memcpy(val + currentvalpos, (unsigned char *)label, llen);
558 currentvalpos += llen;
559 memcpy(val + currentvalpos, s->s3->client_random, SSL3_RANDOM_SIZE);
560 currentvalpos += SSL3_RANDOM_SIZE;
561 memcpy(val + currentvalpos, s->s3->server_random, SSL3_RANDOM_SIZE);
562 currentvalpos += SSL3_RANDOM_SIZE;
565 val[currentvalpos] = (contextlen >> 8) & 0xff;
567 val[currentvalpos] = contextlen & 0xff;
569 if ((contextlen > 0) || (context != NULL)) {
570 memcpy(val + currentvalpos, context, contextlen);
575 * disallow prohibited labels note that SSL3_RANDOM_SIZE > max(prohibited
576 * label len) = 15, so size of val > max(prohibited label len) = 15 and
577 * the comparisons won't have buffer overflow
579 if (memcmp(val, TLS_MD_CLIENT_FINISH_CONST,
580 TLS_MD_CLIENT_FINISH_CONST_SIZE) == 0)
582 if (memcmp(val, TLS_MD_SERVER_FINISH_CONST,
583 TLS_MD_SERVER_FINISH_CONST_SIZE) == 0)
585 if (memcmp(val, TLS_MD_MASTER_SECRET_CONST,
586 TLS_MD_MASTER_SECRET_CONST_SIZE) == 0)
588 if (memcmp(val, TLS_MD_EXTENDED_MASTER_SECRET_CONST,
589 TLS_MD_EXTENDED_MASTER_SECRET_CONST_SIZE) == 0)
591 if (memcmp(val, TLS_MD_KEY_EXPANSION_CONST,
592 TLS_MD_KEY_EXPANSION_CONST_SIZE) == 0)
601 s->session->master_key, s->session->master_key_length,
606 SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL, SSL_R_TLS_ILLEGAL_EXPORTER_LABEL);
610 SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL, ERR_R_MALLOC_FAILURE);
613 OPENSSL_clear_free(val, vallen);
617 int tls1_alert_code(int code)
620 case SSL_AD_CLOSE_NOTIFY:
621 return SSL3_AD_CLOSE_NOTIFY;
622 case SSL_AD_UNEXPECTED_MESSAGE:
623 return SSL3_AD_UNEXPECTED_MESSAGE;
624 case SSL_AD_BAD_RECORD_MAC:
625 return SSL3_AD_BAD_RECORD_MAC;
626 case SSL_AD_DECRYPTION_FAILED:
627 return TLS1_AD_DECRYPTION_FAILED;
628 case SSL_AD_RECORD_OVERFLOW:
629 return TLS1_AD_RECORD_OVERFLOW;
630 case SSL_AD_DECOMPRESSION_FAILURE:
631 return SSL3_AD_DECOMPRESSION_FAILURE;
632 case SSL_AD_HANDSHAKE_FAILURE:
633 return SSL3_AD_HANDSHAKE_FAILURE;
634 case SSL_AD_NO_CERTIFICATE:
636 case SSL_AD_BAD_CERTIFICATE:
637 return SSL3_AD_BAD_CERTIFICATE;
638 case SSL_AD_UNSUPPORTED_CERTIFICATE:
639 return SSL3_AD_UNSUPPORTED_CERTIFICATE;
640 case SSL_AD_CERTIFICATE_REVOKED:
641 return SSL3_AD_CERTIFICATE_REVOKED;
642 case SSL_AD_CERTIFICATE_EXPIRED:
643 return SSL3_AD_CERTIFICATE_EXPIRED;
644 case SSL_AD_CERTIFICATE_UNKNOWN:
645 return SSL3_AD_CERTIFICATE_UNKNOWN;
646 case SSL_AD_ILLEGAL_PARAMETER:
647 return SSL3_AD_ILLEGAL_PARAMETER;
648 case SSL_AD_UNKNOWN_CA:
649 return TLS1_AD_UNKNOWN_CA;
650 case SSL_AD_ACCESS_DENIED:
651 return TLS1_AD_ACCESS_DENIED;
652 case SSL_AD_DECODE_ERROR:
653 return TLS1_AD_DECODE_ERROR;
654 case SSL_AD_DECRYPT_ERROR:
655 return TLS1_AD_DECRYPT_ERROR;
656 case SSL_AD_EXPORT_RESTRICTION:
657 return TLS1_AD_EXPORT_RESTRICTION;
658 case SSL_AD_PROTOCOL_VERSION:
659 return TLS1_AD_PROTOCOL_VERSION;
660 case SSL_AD_INSUFFICIENT_SECURITY:
661 return TLS1_AD_INSUFFICIENT_SECURITY;
662 case SSL_AD_INTERNAL_ERROR:
663 return TLS1_AD_INTERNAL_ERROR;
664 case SSL_AD_USER_CANCELLED:
665 return TLS1_AD_USER_CANCELLED;
666 case SSL_AD_NO_RENEGOTIATION:
667 return TLS1_AD_NO_RENEGOTIATION;
668 case SSL_AD_UNSUPPORTED_EXTENSION:
669 return TLS1_AD_UNSUPPORTED_EXTENSION;
670 case SSL_AD_CERTIFICATE_UNOBTAINABLE:
671 return TLS1_AD_CERTIFICATE_UNOBTAINABLE;
672 case SSL_AD_UNRECOGNIZED_NAME:
673 return TLS1_AD_UNRECOGNIZED_NAME;
674 case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE:
675 return TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE;
676 case SSL_AD_BAD_CERTIFICATE_HASH_VALUE:
677 return TLS1_AD_BAD_CERTIFICATE_HASH_VALUE;
678 case SSL_AD_UNKNOWN_PSK_IDENTITY:
679 return TLS1_AD_UNKNOWN_PSK_IDENTITY;
680 case SSL_AD_INAPPROPRIATE_FALLBACK:
681 return TLS1_AD_INAPPROPRIATE_FALLBACK;
682 case SSL_AD_NO_APPLICATION_PROTOCOL:
683 return TLS1_AD_NO_APPLICATION_PROTOCOL;
684 case SSL_AD_CERTIFICATE_REQUIRED:
685 return SSL_AD_HANDSHAKE_FAILURE;