X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fasn1%2Fp5_pbe.c;h=ab7e16898fa388fd00495a8741aa0748f91ddfa4;hp=da91170094b561f5af1b165c0a5521fcebcc2443;hb=35da893f86a40d3711ed785bd8777c18238aee45;hpb=fbeaa3c47d05dd90781bdf13b9004fd274512e74 diff --git a/crypto/asn1/p5_pbe.c b/crypto/asn1/p5_pbe.c index da91170094..ab7e16898f 100644 --- a/crypto/asn1/p5_pbe.c +++ b/crypto/asn1/p5_pbe.c @@ -1,63 +1,14 @@ -/* p5_pbe.c */ -/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL - * project 1999. - */ -/* ==================================================================== - * Copyright (c) 1999 The OpenSSL Project. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. All advertising materials mentioning features or use of this - * software must display the following acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * licensing@OpenSSL.org. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR - * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). +/* + * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved. * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html */ #include -#include "cryptlib.h" +#include "internal/cryptlib.h" #include #include #include @@ -65,67 +16,81 @@ /* PKCS#5 password based encryption structure */ ASN1_SEQUENCE(PBEPARAM) = { - ASN1_SIMPLE(PBEPARAM, salt, ASN1_OCTET_STRING), - ASN1_SIMPLE(PBEPARAM, iter, ASN1_INTEGER) + ASN1_SIMPLE(PBEPARAM, salt, ASN1_OCTET_STRING), + ASN1_SIMPLE(PBEPARAM, iter, ASN1_INTEGER) } ASN1_SEQUENCE_END(PBEPARAM) IMPLEMENT_ASN1_FUNCTIONS(PBEPARAM) +/* Set an algorithm identifier for a PKCS#5 PBE algorithm */ + +int PKCS5_pbe_set0_algor(X509_ALGOR *algor, int alg, int iter, + const unsigned char *salt, int saltlen) +{ + PBEPARAM *pbe = NULL; + ASN1_STRING *pbe_str = NULL; + unsigned char *sstr = NULL; + + pbe = PBEPARAM_new(); + if (pbe == NULL) { + ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR, ERR_R_MALLOC_FAILURE); + goto err; + } + if (iter <= 0) + iter = PKCS5_DEFAULT_ITER; + if (!ASN1_INTEGER_set(pbe->iter, iter)) { + ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR, ERR_R_MALLOC_FAILURE); + goto err; + } + if (!saltlen) + saltlen = PKCS5_SALT_LEN; + + sstr = OPENSSL_malloc(saltlen); + if (sstr == NULL) { + ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR, ERR_R_MALLOC_FAILURE); + goto err; + } + if (salt) + memcpy(sstr, salt, saltlen); + else if (RAND_bytes(sstr, saltlen) <= 0) + goto err; + + ASN1_STRING_set0(pbe->salt, sstr, saltlen); + sstr = NULL; + + if (!ASN1_item_pack(pbe, ASN1_ITEM_rptr(PBEPARAM), &pbe_str)) { + ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR, ERR_R_MALLOC_FAILURE); + goto err; + } + + PBEPARAM_free(pbe); + pbe = NULL; + + if (X509_ALGOR_set0(algor, OBJ_nid2obj(alg), V_ASN1_SEQUENCE, pbe_str)) + return 1; + + err: + OPENSSL_free(sstr); + PBEPARAM_free(pbe); + ASN1_STRING_free(pbe_str); + return 0; +} + /* Return an algorithm identifier for a PKCS#5 PBE algorithm */ -X509_ALGOR *PKCS5_pbe_set(int alg, int iter, unsigned char *salt, - int saltlen) +X509_ALGOR *PKCS5_pbe_set(int alg, int iter, + const unsigned char *salt, int saltlen) { - PBEPARAM *pbe=NULL; - ASN1_OBJECT *al; - X509_ALGOR *algor; - ASN1_TYPE *astype=NULL; - - if (!(pbe = PBEPARAM_new ())) { - ASN1err(ASN1_F_PKCS5_PBE_SET,ERR_R_MALLOC_FAILURE); - goto err; - } - if(iter <= 0) iter = PKCS5_DEFAULT_ITER; - if (!ASN1_INTEGER_set(pbe->iter, iter)) { - ASN1err(ASN1_F_PKCS5_PBE_SET,ERR_R_MALLOC_FAILURE); - goto err; - } - if (!saltlen) saltlen = PKCS5_SALT_LEN; - if (!(pbe->salt->data = OPENSSL_malloc (saltlen))) { - ASN1err(ASN1_F_PKCS5_PBE_SET,ERR_R_MALLOC_FAILURE); - goto err; - } - pbe->salt->length = saltlen; - if (salt) memcpy (pbe->salt->data, salt, saltlen); - else if (RAND_pseudo_bytes (pbe->salt->data, saltlen) < 0) - goto err; - - if (!(astype = ASN1_TYPE_new())) { - ASN1err(ASN1_F_PKCS5_PBE_SET,ERR_R_MALLOC_FAILURE); - goto err; - } - - astype->type = V_ASN1_SEQUENCE; - if(!ASN1_pack_string_of(PBEPARAM, pbe, i2d_PBEPARAM, - &astype->value.sequence)) { - ASN1err(ASN1_F_PKCS5_PBE_SET,ERR_R_MALLOC_FAILURE); - goto err; - } - PBEPARAM_free (pbe); - pbe = NULL; - - al = OBJ_nid2obj(alg); /* never need to free al */ - if (!(algor = X509_ALGOR_new())) { - ASN1err(ASN1_F_PKCS5_PBE_SET,ERR_R_MALLOC_FAILURE); - goto err; - } - ASN1_OBJECT_free(algor->algorithm); - algor->algorithm = al; - algor->parameter = astype; - - return (algor); -err: - if (pbe != NULL) PBEPARAM_free(pbe); - if (astype != NULL) ASN1_TYPE_free(astype); - return NULL; + X509_ALGOR *ret; + ret = X509_ALGOR_new(); + if (ret == NULL) { + ASN1err(ASN1_F_PKCS5_PBE_SET, ERR_R_MALLOC_FAILURE); + return NULL; + } + + if (PKCS5_pbe_set0_algor(ret, alg, iter, salt, saltlen)) + return ret; + + X509_ALGOR_free(ret); + return NULL; }