t1_enc.c revision 331638
155714Skris/* ssl/t1_enc.c */ 255714Skris/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 355714Skris * All rights reserved. 455714Skris * 555714Skris * This package is an SSL implementation written 655714Skris * by Eric Young (eay@cryptsoft.com). 755714Skris * The implementation was written so as to conform with Netscapes SSL. 8280297Sjkim * 955714Skris * This library is free for commercial and non-commercial use as long as 1055714Skris * the following conditions are aheared to. The following conditions 1155714Skris * apply to all code found in this distribution, be it the RC4, RSA, 1255714Skris * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1355714Skris * included with this distribution is covered by the same copyright terms 1455714Skris * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15280297Sjkim * 1655714Skris * Copyright remains Eric Young's, and as such any Copyright notices in 1755714Skris * the code are not to be removed. 1855714Skris * If this package is used in a product, Eric Young should be given attribution 1955714Skris * as the author of the parts of the library used. 2055714Skris * This can be in the form of a textual message at program startup or 2155714Skris * in documentation (online or textual) provided with the package. 22280297Sjkim * 2355714Skris * Redistribution and use in source and binary forms, with or without 2455714Skris * modification, are permitted provided that the following conditions 2555714Skris * are met: 2655714Skris * 1. Redistributions of source code must retain the copyright 2755714Skris * notice, this list of conditions and the following disclaimer. 2855714Skris * 2. Redistributions in binary form must reproduce the above copyright 2955714Skris * notice, this list of conditions and the following disclaimer in the 3055714Skris * documentation and/or other materials provided with the distribution. 3155714Skris * 3. All advertising materials mentioning features or use of this software 3255714Skris * must display the following acknowledgement: 3355714Skris * "This product includes cryptographic software written by 3455714Skris * Eric Young (eay@cryptsoft.com)" 3555714Skris * The word 'cryptographic' can be left out if the rouines from the library 3655714Skris * being used are not cryptographic related :-). 37280297Sjkim * 4. If you include any Windows specific code (or a derivative thereof) from 3855714Skris * the apps directory (application code) you must include an acknowledgement: 3955714Skris * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40280297Sjkim * 4155714Skris * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 4255714Skris * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4355714Skris * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4455714Skris * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4555714Skris * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4655714Skris * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4755714Skris * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4855714Skris * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4955714Skris * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5055714Skris * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5155714Skris * SUCH DAMAGE. 52280297Sjkim * 5355714Skris * The licence and distribution terms for any publically available version or 5455714Skris * derivative of this code cannot be changed. i.e. this code cannot simply be 5555714Skris * copied and put under another distribution licence 5655714Skris * [including the GNU Public Licence.] 5755714Skris */ 58100928Snectar/* ==================================================================== 59238405Sjkim * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. 60100928Snectar * 61100928Snectar * Redistribution and use in source and binary forms, with or without 62100928Snectar * modification, are permitted provided that the following conditions 63100928Snectar * are met: 64100928Snectar * 65100928Snectar * 1. Redistributions of source code must retain the above copyright 66280297Sjkim * notice, this list of conditions and the following disclaimer. 67100928Snectar * 68100928Snectar * 2. Redistributions in binary form must reproduce the above copyright 69100928Snectar * notice, this list of conditions and the following disclaimer in 70100928Snectar * the documentation and/or other materials provided with the 71100928Snectar * distribution. 72100928Snectar * 73100928Snectar * 3. All advertising materials mentioning features or use of this 74100928Snectar * software must display the following acknowledgment: 75100928Snectar * "This product includes software developed by the OpenSSL Project 76100928Snectar * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 77100928Snectar * 78100928Snectar * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 79100928Snectar * endorse or promote products derived from this software without 80100928Snectar * prior written permission. For written permission, please contact 81100928Snectar * openssl-core@openssl.org. 82100928Snectar * 83100928Snectar * 5. Products derived from this software may not be called "OpenSSL" 84100928Snectar * nor may "OpenSSL" appear in their names without prior written 85100928Snectar * permission of the OpenSSL Project. 86100928Snectar * 87100928Snectar * 6. Redistributions of any form whatsoever must retain the following 88100928Snectar * acknowledgment: 89100928Snectar * "This product includes software developed by the OpenSSL Project 90100928Snectar * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 91100928Snectar * 92100928Snectar * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 93100928Snectar * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 94100928Snectar * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 95100928Snectar * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 96100928Snectar * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 97100928Snectar * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 98100928Snectar * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 99100928Snectar * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 100100928Snectar * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 101100928Snectar * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 102100928Snectar * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 103100928Snectar * OF THE POSSIBILITY OF SUCH DAMAGE. 104100928Snectar * ==================================================================== 105100928Snectar * 106100928Snectar * This product includes cryptographic software written by Eric Young 107100928Snectar * (eay@cryptsoft.com). This product includes software written by Tim 108100928Snectar * Hudson (tjh@cryptsoft.com). 109100928Snectar * 110100928Snectar */ 111238405Sjkim/* ==================================================================== 112238405Sjkim * Copyright 2005 Nokia. All rights reserved. 113238405Sjkim * 114238405Sjkim * The portions of the attached software ("Contribution") is developed by 115238405Sjkim * Nokia Corporation and is licensed pursuant to the OpenSSL open source 116238405Sjkim * license. 117238405Sjkim * 118238405Sjkim * The Contribution, originally written by Mika Kousa and Pasi Eronen of 119238405Sjkim * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites 120238405Sjkim * support (see RFC 4279) to OpenSSL. 121238405Sjkim * 122238405Sjkim * No patent licenses or other rights except those expressly stated in 123238405Sjkim * the OpenSSL open source license shall be deemed granted or received 124238405Sjkim * expressly, by implication, estoppel, or otherwise. 125238405Sjkim * 126238405Sjkim * No assurances are provided by Nokia that the Contribution does not 127238405Sjkim * infringe the patent or other intellectual property rights of any third 128238405Sjkim * party or that the license provides you with all the necessary rights 129238405Sjkim * to make use of the Contribution. 130238405Sjkim * 131238405Sjkim * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN 132238405Sjkim * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA 133238405Sjkim * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY 134238405Sjkim * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR 135238405Sjkim * OTHERWISE. 136238405Sjkim */ 13755714Skris 13855714Skris#include <stdio.h> 139109998Smarkm#include "ssl_locl.h" 140194206Ssimon#ifndef OPENSSL_NO_COMP 141280297Sjkim# include <openssl/comp.h> 142194206Ssimon#endif 14355714Skris#include <openssl/evp.h> 14455714Skris#include <openssl/hmac.h> 145109998Smarkm#include <openssl/md5.h> 146238405Sjkim#include <openssl/rand.h> 147194206Ssimon#ifdef KSSL_DEBUG 148280297Sjkim# include <openssl/des.h> 149194206Ssimon#endif 15055714Skris 151238405Sjkim/* seed1 through seed5 are virtually concatenated */ 152238405Sjkimstatic int tls1_P_hash(const EVP_MD *md, const unsigned char *sec, 153280297Sjkim int sec_len, 154280297Sjkim const void *seed1, int seed1_len, 155280297Sjkim const void *seed2, int seed2_len, 156280297Sjkim const void *seed3, int seed3_len, 157280297Sjkim const void *seed4, int seed4_len, 158280297Sjkim const void *seed5, int seed5_len, 159280297Sjkim unsigned char *out, int olen) 160280297Sjkim{ 161280297Sjkim int chunk; 162280297Sjkim size_t j; 163290207Sjkim EVP_MD_CTX ctx, ctx_tmp, ctx_init; 164280297Sjkim EVP_PKEY *mac_key; 165280297Sjkim unsigned char A1[EVP_MAX_MD_SIZE]; 166280297Sjkim size_t A1_len; 167280297Sjkim int ret = 0; 16855714Skris 169280297Sjkim chunk = EVP_MD_size(md); 170280297Sjkim OPENSSL_assert(chunk >= 0); 17155714Skris 172280297Sjkim EVP_MD_CTX_init(&ctx); 173280297Sjkim EVP_MD_CTX_init(&ctx_tmp); 174290207Sjkim EVP_MD_CTX_init(&ctx_init); 175290207Sjkim EVP_MD_CTX_set_flags(&ctx_init, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW); 176280297Sjkim mac_key = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, NULL, sec, sec_len); 177280297Sjkim if (!mac_key) 178280297Sjkim goto err; 179290207Sjkim if (!EVP_DigestSignInit(&ctx_init, NULL, md, NULL, mac_key)) 180280297Sjkim goto err; 181290207Sjkim if (!EVP_MD_CTX_copy_ex(&ctx, &ctx_init)) 182280297Sjkim goto err; 183280297Sjkim if (seed1 && !EVP_DigestSignUpdate(&ctx, seed1, seed1_len)) 184280297Sjkim goto err; 185280297Sjkim if (seed2 && !EVP_DigestSignUpdate(&ctx, seed2, seed2_len)) 186280297Sjkim goto err; 187280297Sjkim if (seed3 && !EVP_DigestSignUpdate(&ctx, seed3, seed3_len)) 188280297Sjkim goto err; 189280297Sjkim if (seed4 && !EVP_DigestSignUpdate(&ctx, seed4, seed4_len)) 190280297Sjkim goto err; 191280297Sjkim if (seed5 && !EVP_DigestSignUpdate(&ctx, seed5, seed5_len)) 192280297Sjkim goto err; 193280297Sjkim if (!EVP_DigestSignFinal(&ctx, A1, &A1_len)) 194280297Sjkim goto err; 19555714Skris 196280297Sjkim for (;;) { 197280297Sjkim /* Reinit mac contexts */ 198290207Sjkim if (!EVP_MD_CTX_copy_ex(&ctx, &ctx_init)) 199280297Sjkim goto err; 200280297Sjkim if (!EVP_DigestSignUpdate(&ctx, A1, A1_len)) 201280297Sjkim goto err; 202290207Sjkim if (olen > chunk && !EVP_MD_CTX_copy_ex(&ctx_tmp, &ctx)) 203280297Sjkim goto err; 204280297Sjkim if (seed1 && !EVP_DigestSignUpdate(&ctx, seed1, seed1_len)) 205280297Sjkim goto err; 206280297Sjkim if (seed2 && !EVP_DigestSignUpdate(&ctx, seed2, seed2_len)) 207280297Sjkim goto err; 208280297Sjkim if (seed3 && !EVP_DigestSignUpdate(&ctx, seed3, seed3_len)) 209280297Sjkim goto err; 210280297Sjkim if (seed4 && !EVP_DigestSignUpdate(&ctx, seed4, seed4_len)) 211280297Sjkim goto err; 212280297Sjkim if (seed5 && !EVP_DigestSignUpdate(&ctx, seed5, seed5_len)) 213280297Sjkim goto err; 21455714Skris 215280297Sjkim if (olen > chunk) { 216280297Sjkim if (!EVP_DigestSignFinal(&ctx, out, &j)) 217280297Sjkim goto err; 218280297Sjkim out += j; 219280297Sjkim olen -= j; 220280297Sjkim /* calc the next A1 value */ 221280297Sjkim if (!EVP_DigestSignFinal(&ctx_tmp, A1, &A1_len)) 222280297Sjkim goto err; 223280297Sjkim } else { /* last one */ 224280297Sjkim 225280297Sjkim if (!EVP_DigestSignFinal(&ctx, A1, &A1_len)) 226280297Sjkim goto err; 227280297Sjkim memcpy(out, A1, olen); 228280297Sjkim break; 229280297Sjkim } 230280297Sjkim } 231280297Sjkim ret = 1; 232280297Sjkim err: 233280297Sjkim EVP_PKEY_free(mac_key); 234280297Sjkim EVP_MD_CTX_cleanup(&ctx); 235280297Sjkim EVP_MD_CTX_cleanup(&ctx_tmp); 236290207Sjkim EVP_MD_CTX_cleanup(&ctx_init); 237280297Sjkim OPENSSL_cleanse(A1, sizeof(A1)); 238280297Sjkim return ret; 239280297Sjkim} 240280297Sjkim 241238405Sjkim/* seed1 through seed5 are virtually concatenated */ 242238405Sjkimstatic int tls1_PRF(long digest_mask, 243280297Sjkim const void *seed1, int seed1_len, 244280297Sjkim const void *seed2, int seed2_len, 245280297Sjkim const void *seed3, int seed3_len, 246280297Sjkim const void *seed4, int seed4_len, 247280297Sjkim const void *seed5, int seed5_len, 248280297Sjkim const unsigned char *sec, int slen, 249280297Sjkim unsigned char *out1, unsigned char *out2, int olen) 250280297Sjkim{ 251280297Sjkim int len, i, idx, count; 252280297Sjkim const unsigned char *S1; 253280297Sjkim long m; 254280297Sjkim const EVP_MD *md; 255280297Sjkim int ret = 0; 25655714Skris 257280297Sjkim /* Count number of digests and partition sec evenly */ 258280297Sjkim count = 0; 259280297Sjkim for (idx = 0; ssl_get_handshake_digest(idx, &m, &md); idx++) { 260280297Sjkim if ((m << TLS1_PRF_DGST_SHIFT) & digest_mask) 261280297Sjkim count++; 262280297Sjkim } 263284283Sjkim if (!count) { 264280297Sjkim /* Should never happen */ 265280297Sjkim SSLerr(SSL_F_TLS1_PRF, ERR_R_INTERNAL_ERROR); 266280297Sjkim goto err; 267280297Sjkim } 268280297Sjkim len = slen / count; 269280297Sjkim if (count == 1) 270280297Sjkim slen = 0; 271280297Sjkim S1 = sec; 272280297Sjkim memset(out1, 0, olen); 273280297Sjkim for (idx = 0; ssl_get_handshake_digest(idx, &m, &md); idx++) { 274280297Sjkim if ((m << TLS1_PRF_DGST_SHIFT) & digest_mask) { 275280297Sjkim if (!md) { 276280297Sjkim SSLerr(SSL_F_TLS1_PRF, SSL_R_UNSUPPORTED_DIGEST_TYPE); 277280297Sjkim goto err; 278280297Sjkim } 279280297Sjkim if (!tls1_P_hash(md, S1, len + (slen & 1), 280280297Sjkim seed1, seed1_len, seed2, seed2_len, seed3, 281280297Sjkim seed3_len, seed4, seed4_len, seed5, seed5_len, 282280297Sjkim out2, olen)) 283280297Sjkim goto err; 284280297Sjkim S1 += len; 285280297Sjkim for (i = 0; i < olen; i++) { 286280297Sjkim out1[i] ^= out2[i]; 287280297Sjkim } 288280297Sjkim } 289280297Sjkim } 290280297Sjkim ret = 1; 291280297Sjkim err: 292280297Sjkim return ret; 293238405Sjkim} 294280297Sjkim 295238405Sjkimstatic int tls1_generate_key_block(SSL *s, unsigned char *km, 296280297Sjkim unsigned char *tmp, int num) 297280297Sjkim{ 298280297Sjkim int ret; 299280297Sjkim ret = tls1_PRF(ssl_get_algorithm2(s), 300280297Sjkim TLS_MD_KEY_EXPANSION_CONST, 301280297Sjkim TLS_MD_KEY_EXPANSION_CONST_SIZE, s->s3->server_random, 302280297Sjkim SSL3_RANDOM_SIZE, s->s3->client_random, SSL3_RANDOM_SIZE, 303280297Sjkim NULL, 0, NULL, 0, s->session->master_key, 304280297Sjkim s->session->master_key_length, km, tmp, num); 305109998Smarkm#ifdef KSSL_DEBUG 306280297Sjkim fprintf(stderr, "tls1_generate_key_block() ==> %d byte master_key =\n\t", 307280297Sjkim s->session->master_key_length); 308280297Sjkim { 309109998Smarkm int i; 310280297Sjkim for (i = 0; i < s->session->master_key_length; i++) { 311280297Sjkim fprintf(stderr, "%02X", s->session->master_key[i]); 312280297Sjkim } 313280297Sjkim fprintf(stderr, "\n"); 314280297Sjkim } 315280297Sjkim#endif /* KSSL_DEBUG */ 316280297Sjkim return ret; 317280297Sjkim} 31855714Skris 31955714Skrisint tls1_change_cipher_state(SSL *s, int which) 320280297Sjkim{ 321280297Sjkim static const unsigned char empty[] = ""; 322280297Sjkim unsigned char *p, *mac_secret; 323280297Sjkim unsigned char *exp_label; 324280297Sjkim unsigned char tmp1[EVP_MAX_KEY_LENGTH]; 325280297Sjkim unsigned char tmp2[EVP_MAX_KEY_LENGTH]; 326280297Sjkim unsigned char iv1[EVP_MAX_IV_LENGTH * 2]; 327280297Sjkim unsigned char iv2[EVP_MAX_IV_LENGTH * 2]; 328280297Sjkim unsigned char *ms, *key, *iv; 329280297Sjkim int client_write; 330280297Sjkim EVP_CIPHER_CTX *dd; 331280297Sjkim const EVP_CIPHER *c; 332160814Ssimon#ifndef OPENSSL_NO_COMP 333280297Sjkim const SSL_COMP *comp; 334160814Ssimon#endif 335280297Sjkim const EVP_MD *m; 336280297Sjkim int mac_type; 337280297Sjkim int *mac_secret_size; 338280297Sjkim EVP_MD_CTX *mac_ctx; 339280297Sjkim EVP_PKEY *mac_key; 340280297Sjkim int is_export, n, i, j, k, exp_label_len, cl; 341280297Sjkim int reuse_dd = 0; 34255714Skris 343280297Sjkim is_export = SSL_C_IS_EXPORT(s->s3->tmp.new_cipher); 344280297Sjkim c = s->s3->tmp.new_sym_enc; 345280297Sjkim m = s->s3->tmp.new_hash; 346280297Sjkim mac_type = s->s3->tmp.new_mac_pkey_type; 347160814Ssimon#ifndef OPENSSL_NO_COMP 348280297Sjkim comp = s->s3->tmp.new_compression; 349160814Ssimon#endif 350215697Ssimon 351215697Ssimon#ifdef KSSL_DEBUG 352280297Sjkim fprintf(stderr, "tls1_change_cipher_state(which= %d) w/\n", which); 353280297Sjkim fprintf(stderr, "\talg= %ld/%ld, comp= %p\n", 354280297Sjkim s->s3->tmp.new_cipher->algorithm_mkey, 355280297Sjkim s->s3->tmp.new_cipher->algorithm_auth, comp); 356280297Sjkim fprintf(stderr, "\tevp_cipher == %p ==? &d_cbc_ede_cipher3\n", c); 357280297Sjkim fprintf(stderr, "\tevp_cipher: nid, blksz= %d, %d, keylen=%d, ivlen=%d\n", 358280297Sjkim c->nid, c->block_size, c->key_len, c->iv_len); 359280297Sjkim fprintf(stderr, "\tkey_block: len= %d, data= ", 360280297Sjkim s->s3->tmp.key_block_length); 361280297Sjkim { 362238405Sjkim int i; 363280297Sjkim for (i = 0; i < s->s3->tmp.key_block_length; i++) 364280297Sjkim fprintf(stderr, "%02x", s->s3->tmp.key_block[i]); 365280297Sjkim fprintf(stderr, "\n"); 366280297Sjkim } 367280297Sjkim#endif /* KSSL_DEBUG */ 368109998Smarkm 369280297Sjkim if (which & SSL3_CC_READ) { 370280297Sjkim if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC) 371280297Sjkim s->mac_flags |= SSL_MAC_FLAG_READ_MAC_STREAM; 372280297Sjkim else 373280297Sjkim s->mac_flags &= ~SSL_MAC_FLAG_READ_MAC_STREAM; 374238405Sjkim 375280297Sjkim if (s->enc_read_ctx != NULL) 376280297Sjkim reuse_dd = 1; 377280297Sjkim else if ((s->enc_read_ctx = 378280297Sjkim OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL) 379280297Sjkim goto err; 380280297Sjkim else 381280297Sjkim /* 382280297Sjkim * make sure it's intialized in case we exit later with an error 383280297Sjkim */ 384280297Sjkim EVP_CIPHER_CTX_init(s->enc_read_ctx); 385280297Sjkim dd = s->enc_read_ctx; 386280297Sjkim mac_ctx = ssl_replace_hash(&s->read_hash, NULL); 387291719Sjkim if (mac_ctx == NULL) 388291719Sjkim goto err; 389160814Ssimon#ifndef OPENSSL_NO_COMP 390280297Sjkim if (s->expand != NULL) { 391280297Sjkim COMP_CTX_free(s->expand); 392280297Sjkim s->expand = NULL; 393280297Sjkim } 394280297Sjkim if (comp != NULL) { 395280297Sjkim s->expand = COMP_CTX_new(comp->method); 396280297Sjkim if (s->expand == NULL) { 397280297Sjkim SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, 398280297Sjkim SSL_R_COMPRESSION_LIBRARY_ERROR); 399280297Sjkim goto err2; 400280297Sjkim } 401280297Sjkim if (s->s3->rrec.comp == NULL) 402280297Sjkim s->s3->rrec.comp = (unsigned char *) 403280297Sjkim OPENSSL_malloc(SSL3_RT_MAX_ENCRYPTED_LENGTH); 404280297Sjkim if (s->s3->rrec.comp == NULL) 405280297Sjkim goto err; 406280297Sjkim } 407160814Ssimon#endif 408280297Sjkim /* 409290207Sjkim * this is done by dtls1_reset_seq_numbers for DTLS 410280297Sjkim */ 411290207Sjkim if (!SSL_IS_DTLS(s)) 412280297Sjkim memset(&(s->s3->read_sequence[0]), 0, 8); 413280297Sjkim mac_secret = &(s->s3->read_mac_secret[0]); 414280297Sjkim mac_secret_size = &(s->s3->read_mac_secret_size); 415280297Sjkim } else { 416280297Sjkim if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC) 417280297Sjkim s->mac_flags |= SSL_MAC_FLAG_WRITE_MAC_STREAM; 418280297Sjkim else 419280297Sjkim s->mac_flags &= ~SSL_MAC_FLAG_WRITE_MAC_STREAM; 420280297Sjkim if (s->enc_write_ctx != NULL && !SSL_IS_DTLS(s)) 421280297Sjkim reuse_dd = 1; 422280297Sjkim else if ((s->enc_write_ctx = EVP_CIPHER_CTX_new()) == NULL) 423280297Sjkim goto err; 424280297Sjkim dd = s->enc_write_ctx; 425280297Sjkim if (SSL_IS_DTLS(s)) { 426280297Sjkim mac_ctx = EVP_MD_CTX_create(); 427291719Sjkim if (mac_ctx == NULL) 428280297Sjkim goto err; 429280297Sjkim s->write_hash = mac_ctx; 430291719Sjkim } else { 431280297Sjkim mac_ctx = ssl_replace_hash(&s->write_hash, NULL); 432291719Sjkim if (mac_ctx == NULL) 433291719Sjkim goto err; 434291719Sjkim } 435160814Ssimon#ifndef OPENSSL_NO_COMP 436280297Sjkim if (s->compress != NULL) { 437280297Sjkim COMP_CTX_free(s->compress); 438280297Sjkim s->compress = NULL; 439280297Sjkim } 440280297Sjkim if (comp != NULL) { 441280297Sjkim s->compress = COMP_CTX_new(comp->method); 442280297Sjkim if (s->compress == NULL) { 443280297Sjkim SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, 444280297Sjkim SSL_R_COMPRESSION_LIBRARY_ERROR); 445280297Sjkim goto err2; 446280297Sjkim } 447280297Sjkim } 448160814Ssimon#endif 449280297Sjkim /* 450290207Sjkim * this is done by dtls1_reset_seq_numbers for DTLS 451280297Sjkim */ 452290207Sjkim if (!SSL_IS_DTLS(s)) 453280297Sjkim memset(&(s->s3->write_sequence[0]), 0, 8); 454280297Sjkim mac_secret = &(s->s3->write_mac_secret[0]); 455280297Sjkim mac_secret_size = &(s->s3->write_mac_secret_size); 456280297Sjkim } 45755714Skris 458280297Sjkim if (reuse_dd) 459280297Sjkim EVP_CIPHER_CTX_cleanup(dd); 46055714Skris 461280297Sjkim p = s->s3->tmp.key_block; 462280297Sjkim i = *mac_secret_size = s->s3->tmp.new_mac_secret_size; 463238405Sjkim 464280297Sjkim cl = EVP_CIPHER_key_length(c); 465280297Sjkim j = is_export ? (cl < SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher) ? 466280297Sjkim cl : SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher)) : cl; 467280297Sjkim /* Was j=(exp)?5:EVP_CIPHER_key_length(c); */ 468280297Sjkim /* If GCM mode only part of IV comes from PRF */ 469280297Sjkim if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE) 470280297Sjkim k = EVP_GCM_TLS_FIXED_IV_LEN; 471280297Sjkim else 472280297Sjkim k = EVP_CIPHER_iv_length(c); 473280297Sjkim if ((which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) || 474280297Sjkim (which == SSL3_CHANGE_CIPHER_SERVER_READ)) { 475280297Sjkim ms = &(p[0]); 476280297Sjkim n = i + i; 477280297Sjkim key = &(p[n]); 478280297Sjkim n += j + j; 479280297Sjkim iv = &(p[n]); 480280297Sjkim n += k + k; 481280297Sjkim exp_label = (unsigned char *)TLS_MD_CLIENT_WRITE_KEY_CONST; 482280297Sjkim exp_label_len = TLS_MD_CLIENT_WRITE_KEY_CONST_SIZE; 483280297Sjkim client_write = 1; 484280297Sjkim } else { 485280297Sjkim n = i; 486280297Sjkim ms = &(p[n]); 487280297Sjkim n += i + j; 488280297Sjkim key = &(p[n]); 489280297Sjkim n += j + k; 490280297Sjkim iv = &(p[n]); 491280297Sjkim n += k; 492280297Sjkim exp_label = (unsigned char *)TLS_MD_SERVER_WRITE_KEY_CONST; 493280297Sjkim exp_label_len = TLS_MD_SERVER_WRITE_KEY_CONST_SIZE; 494280297Sjkim client_write = 0; 495280297Sjkim } 49655714Skris 497280297Sjkim if (n > s->s3->tmp.key_block_length) { 498280297Sjkim SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR); 499280297Sjkim goto err2; 500280297Sjkim } 50155714Skris 502280297Sjkim memcpy(mac_secret, ms, i); 503238405Sjkim 504280297Sjkim if (!(EVP_CIPHER_flags(c) & EVP_CIPH_FLAG_AEAD_CIPHER)) { 505280297Sjkim mac_key = EVP_PKEY_new_mac_key(mac_type, NULL, 506280297Sjkim mac_secret, *mac_secret_size); 507291719Sjkim if (mac_key == NULL 508291719Sjkim || EVP_DigestSignInit(mac_ctx, NULL, m, NULL, mac_key) <= 0) { 509291719Sjkim EVP_PKEY_free(mac_key); 510291719Sjkim SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR); 511291719Sjkim goto err2; 512291719Sjkim } 513280297Sjkim EVP_PKEY_free(mac_key); 514280297Sjkim } 51555714Skris#ifdef TLS_DEBUG 516280297Sjkim printf("which = %04X\nmac key=", which); 517280297Sjkim { 518280297Sjkim int z; 519280297Sjkim for (z = 0; z < i; z++) 520280297Sjkim printf("%02X%c", ms[z], ((z + 1) % 16) ? ' ' : '\n'); 521280297Sjkim } 52255714Skris#endif 523280297Sjkim if (is_export) { 524280297Sjkim /* 525280297Sjkim * In here I set both the read and write key/iv to the same value 526280297Sjkim * since only the correct one will be used :-). 527280297Sjkim */ 528280297Sjkim if (!tls1_PRF(ssl_get_algorithm2(s), 529280297Sjkim exp_label, exp_label_len, 530280297Sjkim s->s3->client_random, SSL3_RANDOM_SIZE, 531280297Sjkim s->s3->server_random, SSL3_RANDOM_SIZE, 532280297Sjkim NULL, 0, NULL, 0, 533280297Sjkim key, j, tmp1, tmp2, EVP_CIPHER_key_length(c))) 534280297Sjkim goto err2; 535280297Sjkim key = tmp1; 53655714Skris 537280297Sjkim if (k > 0) { 538280297Sjkim if (!tls1_PRF(ssl_get_algorithm2(s), 539280297Sjkim TLS_MD_IV_BLOCK_CONST, TLS_MD_IV_BLOCK_CONST_SIZE, 540280297Sjkim s->s3->client_random, SSL3_RANDOM_SIZE, 541280297Sjkim s->s3->server_random, SSL3_RANDOM_SIZE, 542280297Sjkim NULL, 0, NULL, 0, empty, 0, iv1, iv2, k * 2)) 543280297Sjkim goto err2; 544280297Sjkim if (client_write) 545280297Sjkim iv = iv1; 546280297Sjkim else 547280297Sjkim iv = &(iv1[k]); 548280297Sjkim } 549280297Sjkim } 55055714Skris 551280297Sjkim s->session->key_arg_length = 0; 552109998Smarkm#ifdef KSSL_DEBUG 553280297Sjkim { 554238405Sjkim int i; 555280297Sjkim fprintf(stderr, "EVP_CipherInit_ex(dd,c,key=,iv=,which)\n"); 556280297Sjkim fprintf(stderr, "\tkey= "); 557280297Sjkim for (i = 0; i < c->key_len; i++) 558280297Sjkim fprintf(stderr, "%02x", key[i]); 559280297Sjkim fprintf(stderr, "\n"); 560280297Sjkim fprintf(stderr, "\t iv= "); 561280297Sjkim for (i = 0; i < c->iv_len; i++) 562280297Sjkim fprintf(stderr, "%02x", iv[i]); 563280297Sjkim fprintf(stderr, "\n"); 564280297Sjkim } 565280297Sjkim#endif /* KSSL_DEBUG */ 56655714Skris 567280297Sjkim if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE) { 568280297Sjkim if (!EVP_CipherInit_ex(dd, c, NULL, key, NULL, (which & SSL3_CC_WRITE)) 569280297Sjkim || !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_GCM_SET_IV_FIXED, k, iv)) { 570280297Sjkim SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR); 571280297Sjkim goto err2; 572280297Sjkim } 573280297Sjkim } else { 574280297Sjkim if (!EVP_CipherInit_ex(dd, c, NULL, key, iv, (which & SSL3_CC_WRITE))) { 575280297Sjkim SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR); 576280297Sjkim goto err2; 577280297Sjkim } 578280297Sjkim } 579280297Sjkim /* Needed for "composite" AEADs, such as RC4-HMAC-MD5 */ 580280297Sjkim if ((EVP_CIPHER_flags(c) & EVP_CIPH_FLAG_AEAD_CIPHER) && *mac_secret_size 581280297Sjkim && !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_MAC_KEY, 582280297Sjkim *mac_secret_size, mac_secret)) { 583280297Sjkim SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR); 584280297Sjkim goto err2; 585280297Sjkim } 586290207Sjkim#ifdef OPENSSL_SSL_TRACE_CRYPTO 587290207Sjkim if (s->msg_callback) { 588290207Sjkim int wh = which & SSL3_CC_WRITE ? TLS1_RT_CRYPTO_WRITE : 0; 589290207Sjkim if (*mac_secret_size) 590290207Sjkim s->msg_callback(2, s->version, wh | TLS1_RT_CRYPTO_MAC, 591290207Sjkim mac_secret, *mac_secret_size, 592290207Sjkim s, s->msg_callback_arg); 593290207Sjkim if (c->key_len) 594290207Sjkim s->msg_callback(2, s->version, wh | TLS1_RT_CRYPTO_KEY, 595290207Sjkim key, c->key_len, s, s->msg_callback_arg); 596290207Sjkim if (k) { 597290207Sjkim if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE) 598290207Sjkim wh |= TLS1_RT_CRYPTO_FIXED_IV; 599290207Sjkim else 600290207Sjkim wh |= TLS1_RT_CRYPTO_IV; 601290207Sjkim s->msg_callback(2, s->version, wh, iv, k, s, s->msg_callback_arg); 602290207Sjkim } 603290207Sjkim } 604290207Sjkim#endif 605238405Sjkim 60655714Skris#ifdef TLS_DEBUG 607280297Sjkim printf("which = %04X\nkey=", which); 608280297Sjkim { 609280297Sjkim int z; 610280297Sjkim for (z = 0; z < EVP_CIPHER_key_length(c); z++) 611280297Sjkim printf("%02X%c", key[z], ((z + 1) % 16) ? ' ' : '\n'); 612280297Sjkim } 613280297Sjkim printf("\niv="); 614280297Sjkim { 615280297Sjkim int z; 616280297Sjkim for (z = 0; z < k; z++) 617280297Sjkim printf("%02X%c", iv[z], ((z + 1) % 16) ? ' ' : '\n'); 618280297Sjkim } 619280297Sjkim printf("\n"); 62055714Skris#endif 62155714Skris 622280297Sjkim OPENSSL_cleanse(tmp1, sizeof(tmp1)); 623280297Sjkim OPENSSL_cleanse(tmp2, sizeof(tmp1)); 624280297Sjkim OPENSSL_cleanse(iv1, sizeof(iv1)); 625280297Sjkim OPENSSL_cleanse(iv2, sizeof(iv2)); 626280297Sjkim return (1); 627280297Sjkim err: 628280297Sjkim SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_MALLOC_FAILURE); 629280297Sjkim err2: 630280297Sjkim return (0); 631280297Sjkim} 63255714Skris 63355714Skrisint tls1_setup_key_block(SSL *s) 634280297Sjkim{ 635280297Sjkim unsigned char *p1, *p2 = NULL; 636280297Sjkim const EVP_CIPHER *c; 637280297Sjkim const EVP_MD *hash; 638280297Sjkim int num; 639280297Sjkim SSL_COMP *comp; 640280297Sjkim int mac_type = NID_undef, mac_secret_size = 0; 641280297Sjkim int ret = 0; 64255714Skris 643109998Smarkm#ifdef KSSL_DEBUG 644280297Sjkim fprintf(stderr, "tls1_setup_key_block()\n"); 645280297Sjkim#endif /* KSSL_DEBUG */ 646109998Smarkm 647280297Sjkim if (s->s3->tmp.key_block_length != 0) 648280297Sjkim return (1); 64955714Skris 650280297Sjkim if (!ssl_cipher_get_evp 651280297Sjkim (s->session, &c, &hash, &mac_type, &mac_secret_size, &comp)) { 652280297Sjkim SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK, SSL_R_CIPHER_OR_HASH_UNAVAILABLE); 653280297Sjkim return (0); 654280297Sjkim } 65555714Skris 656280297Sjkim s->s3->tmp.new_sym_enc = c; 657280297Sjkim s->s3->tmp.new_hash = hash; 658280297Sjkim s->s3->tmp.new_mac_pkey_type = mac_type; 659280297Sjkim s->s3->tmp.new_mac_secret_size = mac_secret_size; 660280297Sjkim num = 661280297Sjkim EVP_CIPHER_key_length(c) + mac_secret_size + EVP_CIPHER_iv_length(c); 662280297Sjkim num *= 2; 66355714Skris 664280297Sjkim ssl3_cleanup_key_block(s); 66555714Skris 666280297Sjkim if ((p1 = (unsigned char *)OPENSSL_malloc(num)) == NULL) { 667280297Sjkim SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK, ERR_R_MALLOC_FAILURE); 668280297Sjkim goto err; 669280297Sjkim } 67055714Skris 671280297Sjkim s->s3->tmp.key_block_length = num; 672280297Sjkim s->s3->tmp.key_block = p1; 67355714Skris 674280297Sjkim if ((p2 = (unsigned char *)OPENSSL_malloc(num)) == NULL) { 675280297Sjkim SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK, ERR_R_MALLOC_FAILURE); 676280297Sjkim goto err; 677280297Sjkim } 67855714Skris#ifdef TLS_DEBUG 679280297Sjkim printf("client random\n"); 680280297Sjkim { 681280297Sjkim int z; 682280297Sjkim for (z = 0; z < SSL3_RANDOM_SIZE; z++) 683280297Sjkim printf("%02X%c", s->s3->client_random[z], 684280297Sjkim ((z + 1) % 16) ? ' ' : '\n'); 685280297Sjkim } 686280297Sjkim printf("server random\n"); 687280297Sjkim { 688280297Sjkim int z; 689280297Sjkim for (z = 0; z < SSL3_RANDOM_SIZE; z++) 690280297Sjkim printf("%02X%c", s->s3->server_random[z], 691280297Sjkim ((z + 1) % 16) ? ' ' : '\n'); 692280297Sjkim } 693280297Sjkim printf("pre-master\n"); 694280297Sjkim { 695280297Sjkim int z; 696280297Sjkim for (z = 0; z < s->session->master_key_length; z++) 697280297Sjkim printf("%02X%c", s->session->master_key[z], 698280297Sjkim ((z + 1) % 16) ? ' ' : '\n'); 699280297Sjkim } 70055714Skris#endif 701280297Sjkim if (!tls1_generate_key_block(s, p1, p2, num)) 702280297Sjkim goto err; 70355714Skris#ifdef TLS_DEBUG 704280297Sjkim printf("\nkey block\n"); 705280297Sjkim { 706280297Sjkim int z; 707280297Sjkim for (z = 0; z < num; z++) 708280297Sjkim printf("%02X%c", p1[z], ((z + 1) % 16) ? ' ' : '\n'); 709280297Sjkim } 71055714Skris#endif 71155714Skris 712280297Sjkim if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS) 713280297Sjkim && s->method->version <= TLS1_VERSION) { 714280297Sjkim /* 715280297Sjkim * enable vulnerability countermeasure for CBC ciphers with known-IV 716280297Sjkim * problem (http://www.openssl.org/~bodo/tls-cbc.txt) 717280297Sjkim */ 718280297Sjkim s->s3->need_empty_fragments = 1; 719100936Snectar 720280297Sjkim if (s->session->cipher != NULL) { 721280297Sjkim if (s->session->cipher->algorithm_enc == SSL_eNULL) 722280297Sjkim s->s3->need_empty_fragments = 0; 723280297Sjkim 724109998Smarkm#ifndef OPENSSL_NO_RC4 725280297Sjkim if (s->session->cipher->algorithm_enc == SSL_RC4) 726280297Sjkim s->s3->need_empty_fragments = 0; 727100928Snectar#endif 728280297Sjkim } 729280297Sjkim } 73055714Skris 731280297Sjkim ret = 1; 732280297Sjkim err: 733280297Sjkim if (p2) { 734280297Sjkim OPENSSL_cleanse(p2, num); 735280297Sjkim OPENSSL_free(p2); 736280297Sjkim } 737280297Sjkim return (ret); 738280297Sjkim} 739280297Sjkim 740280297Sjkim/*- 741280297Sjkim * tls1_enc encrypts/decrypts the record in |s->wrec| / |s->rrec|, respectively. 742246772Sjkim * 743246772Sjkim * Returns: 744246772Sjkim * 0: (in non-constant time) if the record is publically invalid (i.e. too 745246772Sjkim * short etc). 746246772Sjkim * 1: if the record's padding is valid / the encryption was successful. 747246772Sjkim * -1: if the record's padding/AEAD-authenticator is invalid or, if sending, 748246772Sjkim * an internal error occured. 749246772Sjkim */ 75055714Skrisint tls1_enc(SSL *s, int send) 751280297Sjkim{ 752280297Sjkim SSL3_RECORD *rec; 753280297Sjkim EVP_CIPHER_CTX *ds; 754280297Sjkim unsigned long l; 755280297Sjkim int bs, i, j, k, pad = 0, ret, mac_size = 0; 756280297Sjkim const EVP_CIPHER *enc; 75755714Skris 758280297Sjkim if (send) { 759280297Sjkim if (EVP_MD_CTX_md(s->write_hash)) { 760280297Sjkim int n = EVP_MD_CTX_size(s->write_hash); 761280297Sjkim OPENSSL_assert(n >= 0); 762280297Sjkim } 763280297Sjkim ds = s->enc_write_ctx; 764280297Sjkim rec = &(s->s3->wrec); 765280297Sjkim if (s->enc_write_ctx == NULL) 766280297Sjkim enc = NULL; 767280297Sjkim else { 768280297Sjkim int ivlen; 769280297Sjkim enc = EVP_CIPHER_CTX_cipher(s->enc_write_ctx); 770280297Sjkim /* For TLSv1.1 and later explicit IV */ 771290207Sjkim if (SSL_USE_EXPLICIT_IV(s) 772280297Sjkim && EVP_CIPHER_mode(enc) == EVP_CIPH_CBC_MODE) 773280297Sjkim ivlen = EVP_CIPHER_iv_length(enc); 774280297Sjkim else 775280297Sjkim ivlen = 0; 776280297Sjkim if (ivlen > 1) { 777280297Sjkim if (rec->data != rec->input) 778280297Sjkim /* 779280297Sjkim * we can't write into the input stream: Can this ever 780280297Sjkim * happen?? (steve) 781280297Sjkim */ 782280297Sjkim fprintf(stderr, 783280297Sjkim "%s:%d: rec->data != rec->input\n", 784280297Sjkim __FILE__, __LINE__); 785280297Sjkim else if (RAND_bytes(rec->input, ivlen) <= 0) 786280297Sjkim return -1; 787280297Sjkim } 788280297Sjkim } 789280297Sjkim } else { 790280297Sjkim if (EVP_MD_CTX_md(s->read_hash)) { 791280297Sjkim int n = EVP_MD_CTX_size(s->read_hash); 792280297Sjkim OPENSSL_assert(n >= 0); 793280297Sjkim } 794280297Sjkim ds = s->enc_read_ctx; 795280297Sjkim rec = &(s->s3->rrec); 796280297Sjkim if (s->enc_read_ctx == NULL) 797280297Sjkim enc = NULL; 798280297Sjkim else 799280297Sjkim enc = EVP_CIPHER_CTX_cipher(s->enc_read_ctx); 800280297Sjkim } 80155714Skris 802109998Smarkm#ifdef KSSL_DEBUG 803280297Sjkim fprintf(stderr, "tls1_enc(%d)\n", send); 804280297Sjkim#endif /* KSSL_DEBUG */ 805109998Smarkm 806280297Sjkim if ((s->session == NULL) || (ds == NULL) || (enc == NULL)) { 807280297Sjkim memmove(rec->data, rec->input, rec->length); 808280297Sjkim rec->input = rec->data; 809280297Sjkim ret = 1; 810280297Sjkim } else { 811280297Sjkim l = rec->length; 812280297Sjkim bs = EVP_CIPHER_block_size(ds->cipher); 81355714Skris 814280297Sjkim if (EVP_CIPHER_flags(ds->cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) { 815284283Sjkim unsigned char buf[EVP_AEAD_TLS1_AAD_LEN], *seq; 816238405Sjkim 817280297Sjkim seq = send ? s->s3->write_sequence : s->s3->read_sequence; 818238405Sjkim 819290207Sjkim if (SSL_IS_DTLS(s)) { 820280297Sjkim unsigned char dtlsseq[9], *p = dtlsseq; 821238405Sjkim 822280297Sjkim s2n(send ? s->d1->w_epoch : s->d1->r_epoch, p); 823280297Sjkim memcpy(p, &seq[2], 6); 824280297Sjkim memcpy(buf, dtlsseq, 8); 825280297Sjkim } else { 826280297Sjkim memcpy(buf, seq, 8); 827280297Sjkim for (i = 7; i >= 0; i--) { /* increment */ 828280297Sjkim ++seq[i]; 829280297Sjkim if (seq[i] != 0) 830280297Sjkim break; 831280297Sjkim } 832280297Sjkim } 833238405Sjkim 834280297Sjkim buf[8] = rec->type; 835280297Sjkim buf[9] = (unsigned char)(s->version >> 8); 836280297Sjkim buf[10] = (unsigned char)(s->version); 837280297Sjkim buf[11] = rec->length >> 8; 838280297Sjkim buf[12] = rec->length & 0xff; 839284283Sjkim pad = EVP_CIPHER_CTX_ctrl(ds, EVP_CTRL_AEAD_TLS1_AAD, 840284283Sjkim EVP_AEAD_TLS1_AAD_LEN, buf); 841284283Sjkim if (pad <= 0) 842284283Sjkim return -1; 843280297Sjkim if (send) { 844280297Sjkim l += pad; 845280297Sjkim rec->length += pad; 846280297Sjkim } 847280297Sjkim } else if ((bs != 1) && send) { 848280297Sjkim i = bs - ((int)l % bs); 84955714Skris 850280297Sjkim /* Add weird padding of upto 256 bytes */ 85155714Skris 852280297Sjkim /* we need to add 'i' padding bytes of value j */ 853280297Sjkim j = i - 1; 854280297Sjkim if (s->options & SSL_OP_TLS_BLOCK_PADDING_BUG) { 855280297Sjkim if (s->s3->flags & TLS1_FLAGS_TLS_PADDING_BUG) 856280297Sjkim j++; 857280297Sjkim } 858280297Sjkim for (k = (int)l; k < (int)(l + i); k++) 859280297Sjkim rec->input[k] = j; 860280297Sjkim l += i; 861280297Sjkim rec->length += i; 862280297Sjkim } 863109998Smarkm#ifdef KSSL_DEBUG 864280297Sjkim { 865280297Sjkim unsigned long ui; 866280297Sjkim fprintf(stderr, 867280297Sjkim "EVP_Cipher(ds=%p,rec->data=%p,rec->input=%p,l=%ld) ==>\n", 868280297Sjkim ds, rec->data, rec->input, l); 869280297Sjkim fprintf(stderr, 870280297Sjkim "\tEVP_CIPHER_CTX: %d buf_len, %d key_len [%lu %lu], %d iv_len\n", 871280297Sjkim ds->buf_len, ds->cipher->key_len, DES_KEY_SZ, 872280297Sjkim DES_SCHEDULE_SZ, ds->cipher->iv_len); 873280297Sjkim fprintf(stderr, "\t\tIV: "); 874280297Sjkim for (i = 0; i < ds->cipher->iv_len; i++) 875280297Sjkim fprintf(stderr, "%02X", ds->iv[i]); 876280297Sjkim fprintf(stderr, "\n"); 877280297Sjkim fprintf(stderr, "\trec->input="); 878280297Sjkim for (ui = 0; ui < l; ui++) 879280297Sjkim fprintf(stderr, " %02x", rec->input[ui]); 880280297Sjkim fprintf(stderr, "\n"); 881280297Sjkim } 882280297Sjkim#endif /* KSSL_DEBUG */ 883109998Smarkm 884280297Sjkim if (!send) { 885280297Sjkim if (l == 0 || l % bs != 0) 886280297Sjkim return 0; 887280297Sjkim } 88855714Skris 889280297Sjkim i = EVP_Cipher(ds, rec->data, rec->input, l); 890280297Sjkim if ((EVP_CIPHER_flags(ds->cipher) & EVP_CIPH_FLAG_CUSTOM_CIPHER) 891280297Sjkim ? (i < 0) 892280297Sjkim : (i == 0)) 893280297Sjkim return -1; /* AEAD can fail to verify MAC */ 894280297Sjkim if (EVP_CIPHER_mode(enc) == EVP_CIPH_GCM_MODE && !send) { 895280297Sjkim rec->data += EVP_GCM_TLS_EXPLICIT_IV_LEN; 896280297Sjkim rec->input += EVP_GCM_TLS_EXPLICIT_IV_LEN; 897280297Sjkim rec->length -= EVP_GCM_TLS_EXPLICIT_IV_LEN; 898280297Sjkim } 899109998Smarkm#ifdef KSSL_DEBUG 900280297Sjkim { 901280297Sjkim unsigned long i; 902280297Sjkim fprintf(stderr, "\trec->data="); 903280297Sjkim for (i = 0; i < l; i++) 904280297Sjkim fprintf(stderr, " %02x", rec->data[i]); 905280297Sjkim fprintf(stderr, "\n"); 906280297Sjkim } 907280297Sjkim#endif /* KSSL_DEBUG */ 908109998Smarkm 909280297Sjkim ret = 1; 910280297Sjkim if (EVP_MD_CTX_md(s->read_hash) != NULL) 911280297Sjkim mac_size = EVP_MD_CTX_size(s->read_hash); 912280297Sjkim if ((bs != 1) && !send) 913280297Sjkim ret = tls1_cbc_remove_padding(s, rec, bs, mac_size); 914280297Sjkim if (pad && !send) 915280297Sjkim rec->length -= pad; 916280297Sjkim } 917280297Sjkim return ret; 918280297Sjkim} 919246772Sjkim 920238405Sjkimint tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *out) 921280297Sjkim{ 922280297Sjkim unsigned int ret; 923280297Sjkim EVP_MD_CTX ctx, *d = NULL; 924280297Sjkim int i; 92555714Skris 926280297Sjkim if (s->s3->handshake_buffer) 927280297Sjkim if (!ssl3_digest_cached_records(s)) 928280297Sjkim return 0; 929238405Sjkim 930280297Sjkim for (i = 0; i < SSL_MAX_DIGEST; i++) { 931280297Sjkim if (s->s3->handshake_dgst[i] 932280297Sjkim && EVP_MD_CTX_type(s->s3->handshake_dgst[i]) == md_nid) { 933280297Sjkim d = s->s3->handshake_dgst[i]; 934280297Sjkim break; 935280297Sjkim } 936280297Sjkim } 937280297Sjkim if (!d) { 938280297Sjkim SSLerr(SSL_F_TLS1_CERT_VERIFY_MAC, SSL_R_NO_REQUIRED_DIGEST); 939280297Sjkim return 0; 940280297Sjkim } 941238405Sjkim 942280297Sjkim EVP_MD_CTX_init(&ctx); 943291719Sjkim if (EVP_MD_CTX_copy_ex(&ctx, d) <=0 944291719Sjkim || EVP_DigestFinal_ex(&ctx, out, &ret) <= 0) 945291719Sjkim ret = 0; 946280297Sjkim EVP_MD_CTX_cleanup(&ctx); 947280297Sjkim return ((int)ret); 948280297Sjkim} 94955714Skris 950238405Sjkimint tls1_final_finish_mac(SSL *s, 951280297Sjkim const char *str, int slen, unsigned char *out) 952280297Sjkim{ 953280297Sjkim unsigned int i; 954280297Sjkim EVP_MD_CTX ctx; 955280297Sjkim unsigned char buf[2 * EVP_MAX_MD_SIZE]; 956280297Sjkim unsigned char *q, buf2[12]; 957280297Sjkim int idx; 958280297Sjkim long mask; 959280297Sjkim int err = 0; 960280297Sjkim const EVP_MD *md; 96155714Skris 962280297Sjkim q = buf; 96355714Skris 964280297Sjkim if (s->s3->handshake_buffer) 965280297Sjkim if (!ssl3_digest_cached_records(s)) 966280297Sjkim return 0; 967238405Sjkim 968280297Sjkim EVP_MD_CTX_init(&ctx); 96955714Skris 970280297Sjkim for (idx = 0; ssl_get_handshake_digest(idx, &mask, &md); idx++) { 971280297Sjkim if (mask & ssl_get_algorithm2(s)) { 972280297Sjkim int hashsize = EVP_MD_size(md); 973280297Sjkim EVP_MD_CTX *hdgst = s->s3->handshake_dgst[idx]; 974280297Sjkim if (!hdgst || hashsize < 0 975331638Sjkim || hashsize > (int)(sizeof(buf) - (size_t)(q - buf))) { 976280297Sjkim /* 977280297Sjkim * internal error: 'buf' is too small for this cipersuite! 978280297Sjkim */ 979280297Sjkim err = 1; 980280297Sjkim } else { 981280297Sjkim if (!EVP_MD_CTX_copy_ex(&ctx, hdgst) || 982280297Sjkim !EVP_DigestFinal_ex(&ctx, q, &i) || 983280297Sjkim (i != (unsigned int)hashsize)) 984280297Sjkim err = 1; 985280297Sjkim q += hashsize; 986280297Sjkim } 987280297Sjkim } 988280297Sjkim } 98955714Skris 990280297Sjkim if (!tls1_PRF(ssl_get_algorithm2(s), 991280297Sjkim str, slen, buf, (int)(q - buf), NULL, 0, NULL, 0, NULL, 0, 992280297Sjkim s->session->master_key, s->session->master_key_length, 993331638Sjkim out, buf2, sizeof(buf2))) 994280297Sjkim err = 1; 995280297Sjkim EVP_MD_CTX_cleanup(&ctx); 99655714Skris 997280297Sjkim OPENSSL_cleanse(buf, (int)(q - buf)); 998280297Sjkim OPENSSL_cleanse(buf2, sizeof(buf2)); 999280297Sjkim if (err) 1000280297Sjkim return 0; 1001280297Sjkim else 1002331638Sjkim return sizeof(buf2); 1003280297Sjkim} 1004280297Sjkim 100555714Skrisint tls1_mac(SSL *ssl, unsigned char *md, int send) 1006280297Sjkim{ 1007280297Sjkim SSL3_RECORD *rec; 1008280297Sjkim unsigned char *seq; 1009280297Sjkim EVP_MD_CTX *hash; 1010280297Sjkim size_t md_size, orig_len; 1011280297Sjkim int i; 1012280297Sjkim EVP_MD_CTX hmac, *mac_ctx; 1013280297Sjkim unsigned char header[13]; 1014280297Sjkim int stream_mac = (send ? (ssl->mac_flags & SSL_MAC_FLAG_WRITE_MAC_STREAM) 1015280297Sjkim : (ssl->mac_flags & SSL_MAC_FLAG_READ_MAC_STREAM)); 1016280297Sjkim int t; 101755714Skris 1018280297Sjkim if (send) { 1019280297Sjkim rec = &(ssl->s3->wrec); 1020280297Sjkim seq = &(ssl->s3->write_sequence[0]); 1021280297Sjkim hash = ssl->write_hash; 1022280297Sjkim } else { 1023280297Sjkim rec = &(ssl->s3->rrec); 1024280297Sjkim seq = &(ssl->s3->read_sequence[0]); 1025280297Sjkim hash = ssl->read_hash; 1026280297Sjkim } 102755714Skris 1028280297Sjkim t = EVP_MD_CTX_size(hash); 1029280297Sjkim OPENSSL_assert(t >= 0); 1030280297Sjkim md_size = t; 103155714Skris 1032280297Sjkim /* I should fix this up TLS TLS TLS TLS TLS XXXXXXXX */ 1033280297Sjkim if (stream_mac) { 1034280297Sjkim mac_ctx = hash; 1035280297Sjkim } else { 1036280297Sjkim if (!EVP_MD_CTX_copy(&hmac, hash)) 1037280297Sjkim return -1; 1038280297Sjkim mac_ctx = &hmac; 1039280297Sjkim } 1040194206Ssimon 1041290207Sjkim if (SSL_IS_DTLS(ssl)) { 1042280297Sjkim unsigned char dtlsseq[8], *p = dtlsseq; 1043238405Sjkim 1044280297Sjkim s2n(send ? ssl->d1->w_epoch : ssl->d1->r_epoch, p); 1045280297Sjkim memcpy(p, &seq[2], 6); 1046194206Ssimon 1047280297Sjkim memcpy(header, dtlsseq, 8); 1048280297Sjkim } else 1049280297Sjkim memcpy(header, seq, 8); 1050194206Ssimon 1051280297Sjkim /* 1052280297Sjkim * kludge: tls1_cbc_remove_padding passes padding length in rec->type 1053280297Sjkim */ 1054280297Sjkim orig_len = rec->length + md_size + ((unsigned int)rec->type >> 8); 1055280297Sjkim rec->type &= 0xff; 1056246772Sjkim 1057280297Sjkim header[8] = rec->type; 1058280297Sjkim header[9] = (unsigned char)(ssl->version >> 8); 1059280297Sjkim header[10] = (unsigned char)(ssl->version); 1060280297Sjkim header[11] = (rec->length) >> 8; 1061280297Sjkim header[12] = (rec->length) & 0xff; 1062246772Sjkim 1063280297Sjkim if (!send && 1064280297Sjkim EVP_CIPHER_CTX_mode(ssl->enc_read_ctx) == EVP_CIPH_CBC_MODE && 1065280297Sjkim ssl3_cbc_record_digest_supported(mac_ctx)) { 1066280297Sjkim /* 1067280297Sjkim * This is a CBC-encrypted record. We must avoid leaking any 1068280297Sjkim * timing-side channel information about how many blocks of data we 1069280297Sjkim * are hashing because that gives an attacker a timing-oracle. 1070280297Sjkim */ 1071280297Sjkim /* Final param == not SSLv3 */ 1072291719Sjkim if (ssl3_cbc_digest_record(mac_ctx, 1073291719Sjkim md, &md_size, 1074291719Sjkim header, rec->input, 1075291719Sjkim rec->length + md_size, orig_len, 1076291719Sjkim ssl->s3->read_mac_secret, 1077291719Sjkim ssl->s3->read_mac_secret_size, 0) <= 0) { 1078291719Sjkim if (!stream_mac) 1079291719Sjkim EVP_MD_CTX_cleanup(&hmac); 1080291719Sjkim return -1; 1081291719Sjkim } 1082280297Sjkim } else { 1083291719Sjkim if (EVP_DigestSignUpdate(mac_ctx, header, sizeof(header)) <= 0 1084291719Sjkim || EVP_DigestSignUpdate(mac_ctx, rec->input, rec->length) <= 0 1085291719Sjkim || EVP_DigestSignFinal(mac_ctx, md, &md_size) <= 0) { 1086291719Sjkim if (!stream_mac) 1087291719Sjkim EVP_MD_CTX_cleanup(&hmac); 1088291719Sjkim return -1; 1089291719Sjkim } 1090246772Sjkim#ifdef OPENSSL_FIPS 1091280297Sjkim if (!send && FIPS_mode()) 1092280297Sjkim tls_fips_digest_extra(ssl->enc_read_ctx, 1093280297Sjkim mac_ctx, rec->input, rec->length, orig_len); 1094246772Sjkim#endif 1095280297Sjkim } 1096280297Sjkim 1097280297Sjkim if (!stream_mac) 1098280297Sjkim EVP_MD_CTX_cleanup(&hmac); 109955714Skris#ifdef TLS_DEBUG 1100280297Sjkim fprintf(stderr, "seq="); 1101280297Sjkim { 1102280297Sjkim int z; 1103280297Sjkim for (z = 0; z < 8; z++) 1104280297Sjkim fprintf(stderr, "%02X ", seq[z]); 1105280297Sjkim fprintf(stderr, "\n"); 1106280297Sjkim } 1107280297Sjkim fprintf(stderr, "rec="); 1108280297Sjkim { 1109280297Sjkim unsigned int z; 1110280297Sjkim for (z = 0; z < rec->length; z++) 1111280297Sjkim fprintf(stderr, "%02X ", rec->data[z]); 1112280297Sjkim fprintf(stderr, "\n"); 1113280297Sjkim } 111455714Skris#endif 111555714Skris 1116290207Sjkim if (!SSL_IS_DTLS(ssl)) { 1117280297Sjkim for (i = 7; i >= 0; i--) { 1118280297Sjkim ++seq[i]; 1119280297Sjkim if (seq[i] != 0) 1120280297Sjkim break; 1121280297Sjkim } 1122280297Sjkim } 112355714Skris#ifdef TLS_DEBUG 1124280297Sjkim { 1125280297Sjkim unsigned int z; 1126280297Sjkim for (z = 0; z < md_size; z++) 1127280297Sjkim fprintf(stderr, "%02X ", md[z]); 1128280297Sjkim fprintf(stderr, "\n"); 1129280297Sjkim } 113055714Skris#endif 1131280297Sjkim return (md_size); 1132280297Sjkim} 113355714Skris 113455714Skrisint tls1_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p, 1135280297Sjkim int len) 1136280297Sjkim{ 1137280297Sjkim unsigned char buff[SSL_MAX_MASTER_KEY_LENGTH]; 1138280297Sjkim const void *co = NULL, *so = NULL; 1139280297Sjkim int col = 0, sol = 0; 114055714Skris 1141109998Smarkm#ifdef KSSL_DEBUG 1142280297Sjkim fprintf(stderr, "tls1_generate_master_secret(%p,%p, %p, %d)\n", s, out, p, 1143280297Sjkim len); 1144280297Sjkim#endif /* KSSL_DEBUG */ 1145109998Smarkm 1146238405Sjkim#ifdef TLSEXT_TYPE_opaque_prf_input 1147280297Sjkim if (s->s3->client_opaque_prf_input != NULL 1148280297Sjkim && s->s3->server_opaque_prf_input != NULL 1149280297Sjkim && s->s3->client_opaque_prf_input_len > 0 1150280297Sjkim && s->s3->client_opaque_prf_input_len == 1151280297Sjkim s->s3->server_opaque_prf_input_len) { 1152280297Sjkim co = s->s3->client_opaque_prf_input; 1153280297Sjkim col = s->s3->server_opaque_prf_input_len; 1154280297Sjkim so = s->s3->server_opaque_prf_input; 1155280297Sjkim /* 1156280297Sjkim * must be same as col (see 1157295009Sjkim * draft-rescorla-tls-opaque-prf-input-00.txt, section 3.1) 1158280297Sjkim */ 1159280297Sjkim sol = s->s3->client_opaque_prf_input_len; 1160280297Sjkim } 1161238405Sjkim#endif 1162238405Sjkim 1163280297Sjkim tls1_PRF(ssl_get_algorithm2(s), 1164280297Sjkim TLS_MD_MASTER_SECRET_CONST, TLS_MD_MASTER_SECRET_CONST_SIZE, 1165280297Sjkim s->s3->client_random, SSL3_RANDOM_SIZE, 1166280297Sjkim co, col, 1167280297Sjkim s->s3->server_random, SSL3_RANDOM_SIZE, 1168331638Sjkim so, sol, p, len, s->session->master_key, buff, sizeof(buff)); 1169331638Sjkim OPENSSL_cleanse(buff, sizeof(buff)); 1170238405Sjkim#ifdef SSL_DEBUG 1171280297Sjkim fprintf(stderr, "Premaster Secret:\n"); 1172280297Sjkim BIO_dump_fp(stderr, (char *)p, len); 1173280297Sjkim fprintf(stderr, "Client Random:\n"); 1174280297Sjkim BIO_dump_fp(stderr, (char *)s->s3->client_random, SSL3_RANDOM_SIZE); 1175280297Sjkim fprintf(stderr, "Server Random:\n"); 1176280297Sjkim BIO_dump_fp(stderr, (char *)s->s3->server_random, SSL3_RANDOM_SIZE); 1177280297Sjkim fprintf(stderr, "Master Secret:\n"); 1178280297Sjkim BIO_dump_fp(stderr, (char *)s->session->master_key, 1179280297Sjkim SSL3_MASTER_SECRET_SIZE); 1180238405Sjkim#endif 1181238405Sjkim 1182290207Sjkim#ifdef OPENSSL_SSL_TRACE_CRYPTO 1183290207Sjkim if (s->msg_callback) { 1184290207Sjkim s->msg_callback(2, s->version, TLS1_RT_CRYPTO_PREMASTER, 1185290207Sjkim p, len, s, s->msg_callback_arg); 1186290207Sjkim s->msg_callback(2, s->version, TLS1_RT_CRYPTO_CLIENT_RANDOM, 1187290207Sjkim s->s3->client_random, SSL3_RANDOM_SIZE, 1188290207Sjkim s, s->msg_callback_arg); 1189290207Sjkim s->msg_callback(2, s->version, TLS1_RT_CRYPTO_SERVER_RANDOM, 1190290207Sjkim s->s3->server_random, SSL3_RANDOM_SIZE, 1191290207Sjkim s, s->msg_callback_arg); 1192290207Sjkim s->msg_callback(2, s->version, TLS1_RT_CRYPTO_MASTER, 1193290207Sjkim s->session->master_key, 1194290207Sjkim SSL3_MASTER_SECRET_SIZE, s, s->msg_callback_arg); 1195290207Sjkim } 1196290207Sjkim#endif 1197290207Sjkim 1198109998Smarkm#ifdef KSSL_DEBUG 1199280297Sjkim fprintf(stderr, "tls1_generate_master_secret() complete\n"); 1200280297Sjkim#endif /* KSSL_DEBUG */ 1201280297Sjkim return (SSL3_MASTER_SECRET_SIZE); 1202280297Sjkim} 120355714Skris 1204238405Sjkimint tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen, 1205280297Sjkim const char *label, size_t llen, 1206280297Sjkim const unsigned char *context, 1207280297Sjkim size_t contextlen, int use_context) 1208280297Sjkim{ 1209280297Sjkim unsigned char *buff; 1210280297Sjkim unsigned char *val = NULL; 1211280297Sjkim size_t vallen, currentvalpos; 1212280297Sjkim int rv; 1213238405Sjkim 1214238405Sjkim#ifdef KSSL_DEBUG 1215280297Sjkim fprintf(stderr, "tls1_export_keying_material(%p,%p,%lu,%s,%lu,%p,%lu)\n", 1216280297Sjkim s, out, olen, label, llen, context, contextlen); 1217280297Sjkim#endif /* KSSL_DEBUG */ 1218238405Sjkim 1219280297Sjkim buff = OPENSSL_malloc(olen); 1220280297Sjkim if (buff == NULL) 1221280297Sjkim goto err2; 1222238405Sjkim 1223280297Sjkim /* 1224280297Sjkim * construct PRF arguments we construct the PRF argument ourself rather 1225280297Sjkim * than passing separate values into the TLS PRF to ensure that the 1226280297Sjkim * concatenation of values does not create a prohibited label. 1227280297Sjkim */ 1228280297Sjkim vallen = llen + SSL3_RANDOM_SIZE * 2; 1229280297Sjkim if (use_context) { 1230280297Sjkim vallen += 2 + contextlen; 1231280297Sjkim } 1232238405Sjkim 1233280297Sjkim val = OPENSSL_malloc(vallen); 1234280297Sjkim if (val == NULL) 1235280297Sjkim goto err2; 1236280297Sjkim currentvalpos = 0; 1237280297Sjkim memcpy(val + currentvalpos, (unsigned char *)label, llen); 1238280297Sjkim currentvalpos += llen; 1239280297Sjkim memcpy(val + currentvalpos, s->s3->client_random, SSL3_RANDOM_SIZE); 1240280297Sjkim currentvalpos += SSL3_RANDOM_SIZE; 1241280297Sjkim memcpy(val + currentvalpos, s->s3->server_random, SSL3_RANDOM_SIZE); 1242280297Sjkim currentvalpos += SSL3_RANDOM_SIZE; 1243238405Sjkim 1244280297Sjkim if (use_context) { 1245280297Sjkim val[currentvalpos] = (contextlen >> 8) & 0xff; 1246280297Sjkim currentvalpos++; 1247280297Sjkim val[currentvalpos] = contextlen & 0xff; 1248280297Sjkim currentvalpos++; 1249280297Sjkim if ((contextlen > 0) || (context != NULL)) { 1250280297Sjkim memcpy(val + currentvalpos, context, contextlen); 1251280297Sjkim } 1252280297Sjkim } 1253238405Sjkim 1254280297Sjkim /* 1255280297Sjkim * disallow prohibited labels note that SSL3_RANDOM_SIZE > max(prohibited 1256280297Sjkim * label len) = 15, so size of val > max(prohibited label len) = 15 and 1257280297Sjkim * the comparisons won't have buffer overflow 1258280297Sjkim */ 1259280297Sjkim if (memcmp(val, TLS_MD_CLIENT_FINISH_CONST, 1260280297Sjkim TLS_MD_CLIENT_FINISH_CONST_SIZE) == 0) 1261280297Sjkim goto err1; 1262280297Sjkim if (memcmp(val, TLS_MD_SERVER_FINISH_CONST, 1263280297Sjkim TLS_MD_SERVER_FINISH_CONST_SIZE) == 0) 1264280297Sjkim goto err1; 1265280297Sjkim if (memcmp(val, TLS_MD_MASTER_SECRET_CONST, 1266280297Sjkim TLS_MD_MASTER_SECRET_CONST_SIZE) == 0) 1267280297Sjkim goto err1; 1268280297Sjkim if (memcmp(val, TLS_MD_KEY_EXPANSION_CONST, 1269280297Sjkim TLS_MD_KEY_EXPANSION_CONST_SIZE) == 0) 1270280297Sjkim goto err1; 1271238405Sjkim 1272280297Sjkim rv = tls1_PRF(ssl_get_algorithm2(s), 1273280297Sjkim val, vallen, 1274280297Sjkim NULL, 0, 1275280297Sjkim NULL, 0, 1276280297Sjkim NULL, 0, 1277280297Sjkim NULL, 0, 1278280297Sjkim s->session->master_key, s->session->master_key_length, 1279280297Sjkim out, buff, olen); 1280280297Sjkim OPENSSL_cleanse(val, vallen); 1281280297Sjkim OPENSSL_cleanse(buff, olen); 1282238405Sjkim 1283238405Sjkim#ifdef KSSL_DEBUG 1284280297Sjkim fprintf(stderr, "tls1_export_keying_material() complete\n"); 1285280297Sjkim#endif /* KSSL_DEBUG */ 1286280297Sjkim goto ret; 1287280297Sjkim err1: 1288280297Sjkim SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL, 1289280297Sjkim SSL_R_TLS_ILLEGAL_EXPORTER_LABEL); 1290280297Sjkim rv = 0; 1291280297Sjkim goto ret; 1292280297Sjkim err2: 1293280297Sjkim SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL, ERR_R_MALLOC_FAILURE); 1294280297Sjkim rv = 0; 1295280297Sjkim ret: 1296280297Sjkim if (buff != NULL) 1297280297Sjkim OPENSSL_free(buff); 1298280297Sjkim if (val != NULL) 1299280297Sjkim OPENSSL_free(val); 1300280297Sjkim return (rv); 1301280297Sjkim} 1302238405Sjkim 130355714Skrisint tls1_alert_code(int code) 1304280297Sjkim{ 1305280297Sjkim switch (code) { 1306280297Sjkim case SSL_AD_CLOSE_NOTIFY: 1307280297Sjkim return (SSL3_AD_CLOSE_NOTIFY); 1308280297Sjkim case SSL_AD_UNEXPECTED_MESSAGE: 1309280297Sjkim return (SSL3_AD_UNEXPECTED_MESSAGE); 1310280297Sjkim case SSL_AD_BAD_RECORD_MAC: 1311280297Sjkim return (SSL3_AD_BAD_RECORD_MAC); 1312280297Sjkim case SSL_AD_DECRYPTION_FAILED: 1313280297Sjkim return (TLS1_AD_DECRYPTION_FAILED); 1314280297Sjkim case SSL_AD_RECORD_OVERFLOW: 1315280297Sjkim return (TLS1_AD_RECORD_OVERFLOW); 1316280297Sjkim case SSL_AD_DECOMPRESSION_FAILURE: 1317280297Sjkim return (SSL3_AD_DECOMPRESSION_FAILURE); 1318280297Sjkim case SSL_AD_HANDSHAKE_FAILURE: 1319280297Sjkim return (SSL3_AD_HANDSHAKE_FAILURE); 1320280297Sjkim case SSL_AD_NO_CERTIFICATE: 1321280297Sjkim return (-1); 1322280297Sjkim case SSL_AD_BAD_CERTIFICATE: 1323280297Sjkim return (SSL3_AD_BAD_CERTIFICATE); 1324280297Sjkim case SSL_AD_UNSUPPORTED_CERTIFICATE: 1325280297Sjkim return (SSL3_AD_UNSUPPORTED_CERTIFICATE); 1326280297Sjkim case SSL_AD_CERTIFICATE_REVOKED: 1327280297Sjkim return (SSL3_AD_CERTIFICATE_REVOKED); 1328280297Sjkim case SSL_AD_CERTIFICATE_EXPIRED: 1329280297Sjkim return (SSL3_AD_CERTIFICATE_EXPIRED); 1330280297Sjkim case SSL_AD_CERTIFICATE_UNKNOWN: 1331280297Sjkim return (SSL3_AD_CERTIFICATE_UNKNOWN); 1332280297Sjkim case SSL_AD_ILLEGAL_PARAMETER: 1333280297Sjkim return (SSL3_AD_ILLEGAL_PARAMETER); 1334280297Sjkim case SSL_AD_UNKNOWN_CA: 1335280297Sjkim return (TLS1_AD_UNKNOWN_CA); 1336280297Sjkim case SSL_AD_ACCESS_DENIED: 1337280297Sjkim return (TLS1_AD_ACCESS_DENIED); 1338280297Sjkim case SSL_AD_DECODE_ERROR: 1339280297Sjkim return (TLS1_AD_DECODE_ERROR); 1340280297Sjkim case SSL_AD_DECRYPT_ERROR: 1341280297Sjkim return (TLS1_AD_DECRYPT_ERROR); 1342280297Sjkim case SSL_AD_EXPORT_RESTRICTION: 1343280297Sjkim return (TLS1_AD_EXPORT_RESTRICTION); 1344280297Sjkim case SSL_AD_PROTOCOL_VERSION: 1345280297Sjkim return (TLS1_AD_PROTOCOL_VERSION); 1346280297Sjkim case SSL_AD_INSUFFICIENT_SECURITY: 1347280297Sjkim return (TLS1_AD_INSUFFICIENT_SECURITY); 1348280297Sjkim case SSL_AD_INTERNAL_ERROR: 1349280297Sjkim return (TLS1_AD_INTERNAL_ERROR); 1350280297Sjkim case SSL_AD_USER_CANCELLED: 1351280297Sjkim return (TLS1_AD_USER_CANCELLED); 1352280297Sjkim case SSL_AD_NO_RENEGOTIATION: 1353280297Sjkim return (TLS1_AD_NO_RENEGOTIATION); 1354280297Sjkim case SSL_AD_UNSUPPORTED_EXTENSION: 1355280297Sjkim return (TLS1_AD_UNSUPPORTED_EXTENSION); 1356280297Sjkim case SSL_AD_CERTIFICATE_UNOBTAINABLE: 1357280297Sjkim return (TLS1_AD_CERTIFICATE_UNOBTAINABLE); 1358280297Sjkim case SSL_AD_UNRECOGNIZED_NAME: 1359280297Sjkim return (TLS1_AD_UNRECOGNIZED_NAME); 1360280297Sjkim case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE: 1361280297Sjkim return (TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE); 1362280297Sjkim case SSL_AD_BAD_CERTIFICATE_HASH_VALUE: 1363280297Sjkim return (TLS1_AD_BAD_CERTIFICATE_HASH_VALUE); 1364280297Sjkim case SSL_AD_UNKNOWN_PSK_IDENTITY: 1365280297Sjkim return (TLS1_AD_UNKNOWN_PSK_IDENTITY); 1366280297Sjkim case SSL_AD_INAPPROPRIATE_FALLBACK: 1367280297Sjkim return (TLS1_AD_INAPPROPRIATE_FALLBACK); 1368280297Sjkim#if 0 1369280297Sjkim /* not appropriate for TLS, not used for DTLS */ 1370280297Sjkim case DTLS1_AD_MISSING_HANDSHAKE_MESSAGE: 1371280297Sjkim return (DTLS1_AD_MISSING_HANDSHAKE_MESSAGE); 1372194206Ssimon#endif 1373280297Sjkim default: 1374280297Sjkim return (-1); 1375280297Sjkim } 1376280297Sjkim} 1377