p5_crpt.c revision e45f106cb6b47af1f21efe76e933bdea2f5dd1ca
1656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* p5_crpt.c */ 2e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 3656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * project 1999. 4656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 5656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* ==================================================================== 6656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Copyright (c) 1999 The OpenSSL Project. All rights reserved. 7656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 8656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Redistribution and use in source and binary forms, with or without 9656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * modification, are permitted provided that the following conditions 10656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * are met: 11656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 12656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1. Redistributions of source code must retain the above copyright 13656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer. 14656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 15656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 16656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer in 17656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the documentation and/or other materials provided with the 18656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * distribution. 19656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 20656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 3. All advertising materials mentioning features or use of this 21656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * software must display the following acknowledgment: 22656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software developed by the OpenSSL Project 23656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 24656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 25656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * endorse or promote products derived from this software without 27656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * prior written permission. For written permission, please contact 28656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * licensing@OpenSSL.org. 29656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 30656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 5. Products derived from this software may not be called "OpenSSL" 31656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * nor may "OpenSSL" appear in their names without prior written 32656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * permission of the OpenSSL Project. 33656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 34656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 6. Redistributions of any form whatsoever must retain the following 35656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * acknowledgment: 36656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software developed by the OpenSSL Project 37656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 38656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 39656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OF THE POSSIBILITY OF SUCH DAMAGE. 51656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ==================================================================== 52656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 53656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This product includes cryptographic software written by Eric Young 54656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (eay@cryptsoft.com). This product includes software written by Tim 55656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Hudson (tjh@cryptsoft.com). 56656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 57656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 58656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 59656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <stdio.h> 60656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <stdlib.h> 61656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include "cryptlib.h" 62656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/x509.h> 63656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/evp.h> 64656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 65656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* PKCS#5 v1.5 compatible PBE functions: see PKCS#5 v2.0 for more info. 66656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 67656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 68656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectvoid PKCS5_PBE_add(void) 69656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ 70656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_DES 71656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project# ifndef OPENSSL_NO_MD5 72656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectEVP_PBE_alg_add(NID_pbeWithMD5AndDES_CBC, EVP_des_cbc(), EVP_md5(), 73656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project PKCS5_PBE_keyivgen); 74656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project# endif 75656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project# ifndef OPENSSL_NO_MD2 76656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectEVP_PBE_alg_add(NID_pbeWithMD2AndDES_CBC, EVP_des_cbc(), EVP_md2(), 77656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project PKCS5_PBE_keyivgen); 78656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project# endif 79656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project# ifndef OPENSSL_NO_SHA 80656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectEVP_PBE_alg_add(NID_pbeWithSHA1AndDES_CBC, EVP_des_cbc(), EVP_sha1(), 81656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project PKCS5_PBE_keyivgen); 82656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project# endif 83656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 84656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_RC2 85656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project# ifndef OPENSSL_NO_MD5 86656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectEVP_PBE_alg_add(NID_pbeWithMD5AndRC2_CBC, EVP_rc2_64_cbc(), EVP_md5(), 87656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project PKCS5_PBE_keyivgen); 88656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project# endif 89656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project# ifndef OPENSSL_NO_MD2 90656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectEVP_PBE_alg_add(NID_pbeWithMD2AndRC2_CBC, EVP_rc2_64_cbc(), EVP_md2(), 91656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project PKCS5_PBE_keyivgen); 92656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project# endif 93656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project# ifndef OPENSSL_NO_SHA 94656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectEVP_PBE_alg_add(NID_pbeWithSHA1AndRC2_CBC, EVP_rc2_64_cbc(), EVP_sha1(), 95656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project PKCS5_PBE_keyivgen); 96656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project# endif 97656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 98656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef OPENSSL_NO_HMAC 99656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectEVP_PBE_alg_add(NID_pbes2, NULL, NULL, PKCS5_v2_PBE_keyivgen); 100656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 101656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project} 102656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 103656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *cctx, const char *pass, int passlen, 104656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1_TYPE *param, const EVP_CIPHER *cipher, const EVP_MD *md, 105656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int en_de) 106656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ 107656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_MD_CTX ctx; 108656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char md_tmp[EVP_MAX_MD_SIZE]; 109656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH]; 110656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i; 111656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project PBEPARAM *pbe; 112656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int saltlen, iter; 113656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *salt; 114656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project const unsigned char *pbuf; 115656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 116656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Extract useful info from parameter */ 117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (param == NULL || param->type != V_ASN1_SEQUENCE || 118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project param->value.sequence == NULL) { 119656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVPerr(EVP_F_PKCS5_PBE_KEYIVGEN,EVP_R_DECODE_ERROR); 120656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 121656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 122656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 123656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project pbuf = param->value.sequence->data; 124656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!(pbe = d2i_PBEPARAM(NULL, &pbuf, param->value.sequence->length))) { 125656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVPerr(EVP_F_PKCS5_PBE_KEYIVGEN,EVP_R_DECODE_ERROR); 126656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 127656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 128656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 129656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!pbe->iter) iter = 1; 130656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else iter = ASN1_INTEGER_get (pbe->iter); 131656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project salt = pbe->salt->data; 132656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project saltlen = pbe->salt->length; 133656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 134656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!pass) passlen = 0; 135656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else if(passlen == -1) passlen = strlen(pass); 136656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 137656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_MD_CTX_init(&ctx); 138656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_DigestInit_ex(&ctx, md, NULL); 139656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_DigestUpdate(&ctx, pass, passlen); 140656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_DigestUpdate(&ctx, salt, saltlen); 141656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project PBEPARAM_free(pbe); 142656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_DigestFinal_ex(&ctx, md_tmp, NULL); 143656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (i = 1; i < iter; i++) { 144656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_DigestInit_ex(&ctx, md, NULL); 145656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_DigestUpdate(&ctx, md_tmp, EVP_MD_size(md)); 146656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_DigestFinal_ex (&ctx, md_tmp, NULL); 147656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 148656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_MD_CTX_cleanup(&ctx); 149656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_assert(EVP_CIPHER_key_length(cipher) <= (int)sizeof(md_tmp)); 150656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(key, md_tmp, EVP_CIPHER_key_length(cipher)); 151656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_assert(EVP_CIPHER_iv_length(cipher) <= 16); 152656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(iv, md_tmp + (16 - EVP_CIPHER_iv_length(cipher)), 153656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_CIPHER_iv_length(cipher)); 154656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_CipherInit_ex(cctx, cipher, NULL, key, iv, en_de); 155656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_cleanse(md_tmp, EVP_MAX_MD_SIZE); 156656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH); 157656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH); 158656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 159656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project} 160