t1_enc.c revision 1.144
1/* $OpenBSD: t1_enc.c,v 1.144 2021/05/05 19:52:00 jsing Exp $ */ 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 */ 58/* ==================================================================== 59 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. 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 */ 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 */ 137 138#include <limits.h> 139#include <stdio.h> 140 141#include "ssl_locl.h" 142 143#include <openssl/evp.h> 144#include <openssl/hmac.h> 145#include <openssl/md5.h> 146 147void 148tls1_cleanup_key_block(SSL *s) 149{ 150 tls12_key_block_free(S3I(s)->hs.tls12.key_block); 151 S3I(s)->hs.tls12.key_block = NULL; 152} 153 154/* 155 * TLS P_hash() data expansion function - see RFC 5246, section 5. 156 */ 157static int 158tls1_P_hash(const EVP_MD *md, const unsigned char *secret, size_t secret_len, 159 const void *seed1, size_t seed1_len, const void *seed2, size_t seed2_len, 160 const void *seed3, size_t seed3_len, const void *seed4, size_t seed4_len, 161 const void *seed5, size_t seed5_len, unsigned char *out, size_t out_len) 162{ 163 unsigned char A1[EVP_MAX_MD_SIZE], hmac[EVP_MAX_MD_SIZE]; 164 size_t A1_len, hmac_len; 165 EVP_MD_CTX ctx; 166 EVP_PKEY *mac_key; 167 int ret = 0; 168 int chunk; 169 size_t i; 170 171 chunk = EVP_MD_size(md); 172 OPENSSL_assert(chunk >= 0); 173 174 EVP_MD_CTX_init(&ctx); 175 176 mac_key = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, NULL, secret, secret_len); 177 if (!mac_key) 178 goto err; 179 if (!EVP_DigestSignInit(&ctx, NULL, md, NULL, mac_key)) 180 goto err; 181 if (seed1 && !EVP_DigestSignUpdate(&ctx, seed1, seed1_len)) 182 goto err; 183 if (seed2 && !EVP_DigestSignUpdate(&ctx, seed2, seed2_len)) 184 goto err; 185 if (seed3 && !EVP_DigestSignUpdate(&ctx, seed3, seed3_len)) 186 goto err; 187 if (seed4 && !EVP_DigestSignUpdate(&ctx, seed4, seed4_len)) 188 goto err; 189 if (seed5 && !EVP_DigestSignUpdate(&ctx, seed5, seed5_len)) 190 goto err; 191 if (!EVP_DigestSignFinal(&ctx, A1, &A1_len)) 192 goto err; 193 194 for (;;) { 195 if (!EVP_DigestSignInit(&ctx, NULL, md, NULL, mac_key)) 196 goto err; 197 if (!EVP_DigestSignUpdate(&ctx, A1, A1_len)) 198 goto err; 199 if (seed1 && !EVP_DigestSignUpdate(&ctx, seed1, seed1_len)) 200 goto err; 201 if (seed2 && !EVP_DigestSignUpdate(&ctx, seed2, seed2_len)) 202 goto err; 203 if (seed3 && !EVP_DigestSignUpdate(&ctx, seed3, seed3_len)) 204 goto err; 205 if (seed4 && !EVP_DigestSignUpdate(&ctx, seed4, seed4_len)) 206 goto err; 207 if (seed5 && !EVP_DigestSignUpdate(&ctx, seed5, seed5_len)) 208 goto err; 209 if (!EVP_DigestSignFinal(&ctx, hmac, &hmac_len)) 210 goto err; 211 212 if (hmac_len > out_len) 213 hmac_len = out_len; 214 215 for (i = 0; i < hmac_len; i++) 216 out[i] ^= hmac[i]; 217 218 out += hmac_len; 219 out_len -= hmac_len; 220 221 if (out_len == 0) 222 break; 223 224 if (!EVP_DigestSignInit(&ctx, NULL, md, NULL, mac_key)) 225 goto err; 226 if (!EVP_DigestSignUpdate(&ctx, A1, A1_len)) 227 goto err; 228 if (!EVP_DigestSignFinal(&ctx, A1, &A1_len)) 229 goto err; 230 } 231 ret = 1; 232 233 err: 234 EVP_PKEY_free(mac_key); 235 EVP_MD_CTX_cleanup(&ctx); 236 237 explicit_bzero(A1, sizeof(A1)); 238 explicit_bzero(hmac, sizeof(hmac)); 239 240 return ret; 241} 242 243int 244tls1_PRF(SSL *s, const unsigned char *secret, size_t secret_len, 245 const void *seed1, size_t seed1_len, const void *seed2, size_t seed2_len, 246 const void *seed3, size_t seed3_len, const void *seed4, size_t seed4_len, 247 const void *seed5, size_t seed5_len, unsigned char *out, size_t out_len) 248{ 249 const EVP_MD *md; 250 size_t half_len; 251 252 memset(out, 0, out_len); 253 254 if (!ssl_get_handshake_evp_md(s, &md)) 255 return (0); 256 257 if (md->type == NID_md5_sha1) { 258 /* 259 * Partition secret between MD5 and SHA1, then XOR result. 260 * If the secret length is odd, a one byte overlap is used. 261 */ 262 half_len = secret_len - (secret_len / 2); 263 if (!tls1_P_hash(EVP_md5(), secret, half_len, seed1, seed1_len, 264 seed2, seed2_len, seed3, seed3_len, seed4, seed4_len, 265 seed5, seed5_len, out, out_len)) 266 return (0); 267 268 secret += secret_len - half_len; 269 if (!tls1_P_hash(EVP_sha1(), secret, half_len, seed1, seed1_len, 270 seed2, seed2_len, seed3, seed3_len, seed4, seed4_len, 271 seed5, seed5_len, out, out_len)) 272 return (0); 273 274 return (1); 275 } 276 277 if (!tls1_P_hash(md, secret, secret_len, seed1, seed1_len, 278 seed2, seed2_len, seed3, seed3_len, seed4, seed4_len, 279 seed5, seed5_len, out, out_len)) 280 return (0); 281 282 return (1); 283} 284 285int 286tls1_generate_key_block(SSL *s, uint8_t *key_block, size_t key_block_len) 287{ 288 return tls1_PRF(s, 289 s->session->master_key, s->session->master_key_length, 290 TLS_MD_KEY_EXPANSION_CONST, TLS_MD_KEY_EXPANSION_CONST_SIZE, 291 s->s3->server_random, SSL3_RANDOM_SIZE, 292 s->s3->client_random, SSL3_RANDOM_SIZE, 293 NULL, 0, NULL, 0, key_block, key_block_len); 294} 295 296static int 297tls1_change_cipher_state(SSL *s, int is_write) 298{ 299 CBS mac_key, key, iv; 300 301 /* Use client write keys on client write and server read. */ 302 if ((!s->server && is_write) || (s->server && !is_write)) { 303 tls12_key_block_client_write(S3I(s)->hs.tls12.key_block, 304 &mac_key, &key, &iv); 305 } else { 306 tls12_key_block_server_write(S3I(s)->hs.tls12.key_block, 307 &mac_key, &key, &iv); 308 } 309 310 if (!is_write) { 311 if (!tls12_record_layer_change_read_cipher_state(s->internal->rl, 312 &mac_key, &key, &iv)) 313 goto err; 314 if (SSL_is_dtls(s)) 315 dtls1_reset_read_seq_numbers(s); 316 tls12_record_layer_read_cipher_hash(s->internal->rl, 317 &s->enc_read_ctx, &s->read_hash); 318 } else { 319 if (!tls12_record_layer_change_write_cipher_state(s->internal->rl, 320 &mac_key, &key, &iv)) 321 goto err; 322 } 323 return (1); 324 325 err: 326 return (0); 327} 328 329int 330tls1_change_read_cipher_state(SSL *s) 331{ 332 return tls1_change_cipher_state(s, 0); 333} 334 335int 336tls1_change_write_cipher_state(SSL *s) 337{ 338 return tls1_change_cipher_state(s, 1); 339} 340 341int 342tls1_setup_key_block(SSL *s) 343{ 344 struct tls12_key_block *key_block; 345 int mac_type = NID_undef, mac_secret_size = 0; 346 const EVP_CIPHER *cipher = NULL; 347 const EVP_AEAD *aead = NULL; 348 const EVP_MD *handshake_hash = NULL; 349 const EVP_MD *mac_hash = NULL; 350 int ret = 0; 351 352 /* 353 * XXX - callers should be changed so that they only call this 354 * function once. 355 */ 356 if (S3I(s)->hs.tls12.key_block != NULL) 357 return (1); 358 359 if (s->session->cipher && 360 (s->session->cipher->algorithm_mac & SSL_AEAD)) { 361 if (!ssl_cipher_get_evp_aead(s->session, &aead)) { 362 SSLerror(s, SSL_R_CIPHER_OR_HASH_UNAVAILABLE); 363 return (0); 364 } 365 } else { 366 /* XXX - mac_type and mac_secret_size are now unused. */ 367 if (!ssl_cipher_get_evp(s->session, &cipher, &mac_hash, 368 &mac_type, &mac_secret_size)) { 369 SSLerror(s, SSL_R_CIPHER_OR_HASH_UNAVAILABLE); 370 return (0); 371 } 372 } 373 374 if (!ssl_get_handshake_evp_md(s, &handshake_hash)) 375 return (0); 376 377 tls12_record_layer_set_aead(s->internal->rl, aead); 378 tls12_record_layer_set_cipher_hash(s->internal->rl, cipher, 379 handshake_hash, mac_hash); 380 381 if ((key_block = tls12_key_block_new()) == NULL) 382 goto err; 383 if (!tls12_key_block_generate(key_block, s, aead, cipher, mac_hash)) 384 goto err; 385 386 S3I(s)->hs.tls12.key_block = key_block; 387 key_block = NULL; 388 389 if (!(s->internal->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS) && 390 s->method->internal->version <= TLS1_VERSION) { 391 /* 392 * Enable vulnerability countermeasure for CBC ciphers with 393 * known-IV problem (http://www.openssl.org/~bodo/tls-cbc.txt) 394 */ 395 S3I(s)->need_empty_fragments = 1; 396 397 if (s->session->cipher != NULL) { 398 if (s->session->cipher->algorithm_enc == SSL_eNULL) 399 S3I(s)->need_empty_fragments = 0; 400 401#ifndef OPENSSL_NO_RC4 402 if (s->session->cipher->algorithm_enc == SSL_RC4) 403 S3I(s)->need_empty_fragments = 0; 404#endif 405 } 406 } 407 408 ret = 1; 409 410 err: 411 tls12_key_block_free(key_block); 412 413 return (ret); 414} 415 416int 417tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen, 418 const char *label, size_t llen, const unsigned char *context, 419 size_t contextlen, int use_context) 420{ 421 unsigned char *val = NULL; 422 size_t vallen, currentvalpos; 423 int rv; 424 425 if (!SSL_is_init_finished(s)) { 426 SSLerror(s, SSL_R_BAD_STATE); 427 return 0; 428 } 429 430 /* construct PRF arguments 431 * we construct the PRF argument ourself rather than passing separate 432 * values into the TLS PRF to ensure that the concatenation of values 433 * does not create a prohibited label. 434 */ 435 vallen = llen + SSL3_RANDOM_SIZE * 2; 436 if (use_context) { 437 vallen += 2 + contextlen; 438 } 439 440 val = malloc(vallen); 441 if (val == NULL) 442 goto err2; 443 currentvalpos = 0; 444 memcpy(val + currentvalpos, (unsigned char *) label, llen); 445 currentvalpos += llen; 446 memcpy(val + currentvalpos, s->s3->client_random, SSL3_RANDOM_SIZE); 447 currentvalpos += SSL3_RANDOM_SIZE; 448 memcpy(val + currentvalpos, s->s3->server_random, SSL3_RANDOM_SIZE); 449 currentvalpos += SSL3_RANDOM_SIZE; 450 451 if (use_context) { 452 val[currentvalpos] = (contextlen >> 8) & 0xff; 453 currentvalpos++; 454 val[currentvalpos] = contextlen & 0xff; 455 currentvalpos++; 456 if ((contextlen > 0) || (context != NULL)) { 457 memcpy(val + currentvalpos, context, contextlen); 458 } 459 } 460 461 /* disallow prohibited labels 462 * note that SSL3_RANDOM_SIZE > max(prohibited label len) = 463 * 15, so size of val > max(prohibited label len) = 15 and the 464 * comparisons won't have buffer overflow 465 */ 466 if (memcmp(val, TLS_MD_CLIENT_FINISH_CONST, 467 TLS_MD_CLIENT_FINISH_CONST_SIZE) == 0) 468 goto err1; 469 if (memcmp(val, TLS_MD_SERVER_FINISH_CONST, 470 TLS_MD_SERVER_FINISH_CONST_SIZE) == 0) 471 goto err1; 472 if (memcmp(val, TLS_MD_MASTER_SECRET_CONST, 473 TLS_MD_MASTER_SECRET_CONST_SIZE) == 0) 474 goto err1; 475 if (memcmp(val, TLS_MD_KEY_EXPANSION_CONST, 476 TLS_MD_KEY_EXPANSION_CONST_SIZE) == 0) 477 goto err1; 478 479 rv = tls1_PRF(s, s->session->master_key, s->session->master_key_length, 480 val, vallen, NULL, 0, NULL, 0, NULL, 0, NULL, 0, out, olen); 481 482 goto ret; 483err1: 484 SSLerror(s, SSL_R_TLS_ILLEGAL_EXPORTER_LABEL); 485 rv = 0; 486 goto ret; 487err2: 488 SSLerror(s, ERR_R_MALLOC_FAILURE); 489 rv = 0; 490ret: 491 free(val); 492 493 return (rv); 494} 495 496int 497tls1_alert_code(int code) 498{ 499 switch (code) { 500 case SSL_AD_CLOSE_NOTIFY: 501 return (SSL3_AD_CLOSE_NOTIFY); 502 case SSL_AD_UNEXPECTED_MESSAGE: 503 return (SSL3_AD_UNEXPECTED_MESSAGE); 504 case SSL_AD_BAD_RECORD_MAC: 505 return (SSL3_AD_BAD_RECORD_MAC); 506 case SSL_AD_DECRYPTION_FAILED: 507 return (TLS1_AD_DECRYPTION_FAILED); 508 case SSL_AD_RECORD_OVERFLOW: 509 return (TLS1_AD_RECORD_OVERFLOW); 510 case SSL_AD_DECOMPRESSION_FAILURE: 511 return (SSL3_AD_DECOMPRESSION_FAILURE); 512 case SSL_AD_HANDSHAKE_FAILURE: 513 return (SSL3_AD_HANDSHAKE_FAILURE); 514 case SSL_AD_NO_CERTIFICATE: 515 return (-1); 516 case SSL_AD_BAD_CERTIFICATE: 517 return (SSL3_AD_BAD_CERTIFICATE); 518 case SSL_AD_UNSUPPORTED_CERTIFICATE: 519 return (SSL3_AD_UNSUPPORTED_CERTIFICATE); 520 case SSL_AD_CERTIFICATE_REVOKED: 521 return (SSL3_AD_CERTIFICATE_REVOKED); 522 case SSL_AD_CERTIFICATE_EXPIRED: 523 return (SSL3_AD_CERTIFICATE_EXPIRED); 524 case SSL_AD_CERTIFICATE_UNKNOWN: 525 return (SSL3_AD_CERTIFICATE_UNKNOWN); 526 case SSL_AD_ILLEGAL_PARAMETER: 527 return (SSL3_AD_ILLEGAL_PARAMETER); 528 case SSL_AD_UNKNOWN_CA: 529 return (TLS1_AD_UNKNOWN_CA); 530 case SSL_AD_ACCESS_DENIED: 531 return (TLS1_AD_ACCESS_DENIED); 532 case SSL_AD_DECODE_ERROR: 533 return (TLS1_AD_DECODE_ERROR); 534 case SSL_AD_DECRYPT_ERROR: 535 return (TLS1_AD_DECRYPT_ERROR); 536 case SSL_AD_EXPORT_RESTRICTION: 537 return (TLS1_AD_EXPORT_RESTRICTION); 538 case SSL_AD_PROTOCOL_VERSION: 539 return (TLS1_AD_PROTOCOL_VERSION); 540 case SSL_AD_INSUFFICIENT_SECURITY: 541 return (TLS1_AD_INSUFFICIENT_SECURITY); 542 case SSL_AD_INTERNAL_ERROR: 543 return (TLS1_AD_INTERNAL_ERROR); 544 case SSL_AD_INAPPROPRIATE_FALLBACK: 545 return(TLS1_AD_INAPPROPRIATE_FALLBACK); 546 case SSL_AD_USER_CANCELLED: 547 return (TLS1_AD_USER_CANCELLED); 548 case SSL_AD_NO_RENEGOTIATION: 549 return (TLS1_AD_NO_RENEGOTIATION); 550 case SSL_AD_UNSUPPORTED_EXTENSION: 551 return (TLS1_AD_UNSUPPORTED_EXTENSION); 552 case SSL_AD_CERTIFICATE_UNOBTAINABLE: 553 return (TLS1_AD_CERTIFICATE_UNOBTAINABLE); 554 case SSL_AD_UNRECOGNIZED_NAME: 555 return (TLS1_AD_UNRECOGNIZED_NAME); 556 case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE: 557 return (TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE); 558 case SSL_AD_BAD_CERTIFICATE_HASH_VALUE: 559 return (TLS1_AD_BAD_CERTIFICATE_HASH_VALUE); 560 case SSL_AD_UNKNOWN_PSK_IDENTITY: 561 return (TLS1_AD_UNKNOWN_PSK_IDENTITY); 562 default: 563 return (-1); 564 } 565} 566