p12_crpt.c revision 280304
1/* p12_crpt.c */ 2/* 3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project 4 * 1999. 5 */ 6/* ==================================================================== 7 * Copyright (c) 1999 The OpenSSL Project. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in 18 * the documentation and/or other materials provided with the 19 * distribution. 20 * 21 * 3. All advertising materials mentioning features or use of this 22 * software must display the following acknowledgment: 23 * "This product includes software developed by the OpenSSL Project 24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 25 * 26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 27 * endorse or promote products derived from this software without 28 * prior written permission. For written permission, please contact 29 * licensing@OpenSSL.org. 30 * 31 * 5. Products derived from this software may not be called "OpenSSL" 32 * nor may "OpenSSL" appear in their names without prior written 33 * permission of the OpenSSL Project. 34 * 35 * 6. Redistributions of any form whatsoever must retain the following 36 * acknowledgment: 37 * "This product includes software developed by the OpenSSL Project 38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 39 * 40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 51 * OF THE POSSIBILITY OF SUCH DAMAGE. 52 * ==================================================================== 53 * 54 * This product includes cryptographic software written by Eric Young 55 * (eay@cryptsoft.com). This product includes software written by Tim 56 * Hudson (tjh@cryptsoft.com). 57 * 58 */ 59 60#include <stdio.h> 61#include "cryptlib.h" 62#include <openssl/pkcs12.h> 63 64/* PKCS#12 PBE algorithms now in static table */ 65 66void PKCS12_PBE_add(void) 67{ 68} 69 70int PKCS12_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen, 71 ASN1_TYPE *param, const EVP_CIPHER *cipher, 72 const EVP_MD *md, int en_de) 73{ 74 PBEPARAM *pbe; 75 int saltlen, iter, ret; 76 unsigned char *salt; 77 const unsigned char *pbuf; 78 unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH]; 79 80 /* Extract useful info from parameter */ 81 if (param == NULL || param->type != V_ASN1_SEQUENCE || 82 param->value.sequence == NULL) { 83 PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN, PKCS12_R_DECODE_ERROR); 84 return 0; 85 } 86 87 pbuf = param->value.sequence->data; 88 if (!(pbe = d2i_PBEPARAM(NULL, &pbuf, param->value.sequence->length))) { 89 PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN, PKCS12_R_DECODE_ERROR); 90 return 0; 91 } 92 93 if (!pbe->iter) 94 iter = 1; 95 else 96 iter = ASN1_INTEGER_get(pbe->iter); 97 salt = pbe->salt->data; 98 saltlen = pbe->salt->length; 99 if (!PKCS12_key_gen(pass, passlen, salt, saltlen, PKCS12_KEY_ID, 100 iter, EVP_CIPHER_key_length(cipher), key, md)) { 101 PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN, PKCS12_R_KEY_GEN_ERROR); 102 PBEPARAM_free(pbe); 103 return 0; 104 } 105 if (!PKCS12_key_gen(pass, passlen, salt, saltlen, PKCS12_IV_ID, 106 iter, EVP_CIPHER_iv_length(cipher), iv, md)) { 107 PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN, PKCS12_R_IV_GEN_ERROR); 108 PBEPARAM_free(pbe); 109 return 0; 110 } 111 PBEPARAM_free(pbe); 112 ret = EVP_CipherInit_ex(ctx, cipher, NULL, key, iv, en_de); 113 OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH); 114 OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH); 115 return ret; 116} 117