1656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* p5_pbe.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 "cryptlib.h" 61656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/asn1t.h> 62656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/x509.h> 63656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/rand.h> 64656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 65656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* PKCS#5 password based encryption structure */ 66656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 67656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectASN1_SEQUENCE(PBEPARAM) = { 68656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1_SIMPLE(PBEPARAM, salt, ASN1_OCTET_STRING), 69656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1_SIMPLE(PBEPARAM, iter, ASN1_INTEGER) 70656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project} ASN1_SEQUENCE_END(PBEPARAM) 71656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 72656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectIMPLEMENT_ASN1_FUNCTIONS(PBEPARAM) 73656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 74656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 75221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom/* Set an algorithm identifier for a PKCS#5 PBE algorithm */ 76221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 77221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromint PKCS5_pbe_set0_algor(X509_ALGOR *algor, int alg, int iter, 78221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom const unsigned char *salt, int saltlen) 79221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 80656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project PBEPARAM *pbe=NULL; 81221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom ASN1_STRING *pbe_str=NULL; 82221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom unsigned char *sstr; 83656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 84221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom pbe = PBEPARAM_new(); 85221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (!pbe) 86221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 87221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR,ERR_R_MALLOC_FAILURE); 88656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 89221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 90221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if(iter <= 0) 91221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom iter = PKCS5_DEFAULT_ITER; 92221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (!ASN1_INTEGER_set(pbe->iter, iter)) 93221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 94221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR,ERR_R_MALLOC_FAILURE); 95656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 96221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 97221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (!saltlen) 98221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom saltlen = PKCS5_SALT_LEN; 99221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (!ASN1_STRING_set(pbe->salt, NULL, saltlen)) 100221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 101221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR,ERR_R_MALLOC_FAILURE); 102656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 103221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 104221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom sstr = ASN1_STRING_data(pbe->salt); 105221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (salt) 106221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom memcpy(sstr, salt, saltlen); 107221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom else if (RAND_pseudo_bytes(sstr, saltlen) < 0) 108656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 109656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 110221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if(!ASN1_item_pack(pbe, ASN1_ITEM_rptr(PBEPARAM), &pbe_str)) 111221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 112221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR,ERR_R_MALLOC_FAILURE); 113656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 114221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 115656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 116221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom PBEPARAM_free(pbe); 117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project pbe = NULL; 118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 119221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (X509_ALGOR_set0(algor, OBJ_nid2obj(alg), V_ASN1_SEQUENCE, pbe_str)) 120221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom return 1; 121221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 122656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projecterr: 123221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (pbe != NULL) 124221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom PBEPARAM_free(pbe); 125221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (pbe_str != NULL) 126221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom ASN1_STRING_free(pbe_str); 127221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom return 0; 128221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 129221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 130221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom/* Return an algorithm identifier for a PKCS#5 PBE algorithm */ 131221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 132221304ee937bc0910948a8be1320cb8cc4eb6d36Brian CarlstromX509_ALGOR *PKCS5_pbe_set(int alg, int iter, 133221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom const unsigned char *salt, int saltlen) 134221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 135221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom X509_ALGOR *ret; 136221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom ret = X509_ALGOR_new(); 137221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (!ret) 138221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom { 139221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom ASN1err(ASN1_F_PKCS5_PBE_SET,ERR_R_MALLOC_FAILURE); 140221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom return NULL; 141221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 142221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 143221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (PKCS5_pbe_set0_algor(ret, alg, iter, salt, saltlen)) 144221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom return ret; 145221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom 146221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom X509_ALGOR_free(ret); 147656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return NULL; 148221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom } 149