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143 lines
4.8 KiB
143 lines
4.8 KiB
/* p5_pbe.c */ |
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/* |
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* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project |
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* 1999. |
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*/ |
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/* ==================================================================== |
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* Copyright (c) 1999 The OpenSSL Project. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. All advertising materials mentioning features or use of this |
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* software must display the following acknowledgment: |
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* "This product includes software developed by the OpenSSL Project |
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
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* |
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
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* endorse or promote products derived from this software without |
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* prior written permission. For written permission, please contact |
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* licensing@OpenSSL.org. |
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* |
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* 5. Products derived from this software may not be called "OpenSSL" |
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* nor may "OpenSSL" appear in their names without prior written |
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* permission of the OpenSSL Project. |
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* |
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* 6. Redistributions of any form whatsoever must retain the following |
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* acknowledgment: |
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* "This product includes software developed by the OpenSSL Project |
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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* OF THE POSSIBILITY OF SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This product includes cryptographic software written by Eric Young |
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* (eay@cryptsoft.com). This product includes software written by Tim |
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* Hudson (tjh@cryptsoft.com). |
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* |
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*/ |
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#include <stdio.h> |
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#include "cryptlib.h" |
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#include <openssl/asn1t.h> |
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#include <openssl/x509.h> |
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#include <openssl/rand.h> |
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/* PKCS#5 password based encryption structure */ |
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ASN1_SEQUENCE(PBEPARAM) = { |
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ASN1_SIMPLE(PBEPARAM, salt, ASN1_OCTET_STRING), |
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ASN1_SIMPLE(PBEPARAM, iter, ASN1_INTEGER) |
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} ASN1_SEQUENCE_END(PBEPARAM) |
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IMPLEMENT_ASN1_FUNCTIONS(PBEPARAM) |
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/* Set an algorithm identifier for a PKCS#5 PBE algorithm */ |
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int PKCS5_pbe_set0_algor(X509_ALGOR *algor, int alg, int iter, |
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const unsigned char *salt, int saltlen) |
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{ |
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PBEPARAM *pbe = NULL; |
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ASN1_STRING *pbe_str = NULL; |
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unsigned char *sstr; |
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pbe = PBEPARAM_new(); |
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if (!pbe) { |
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ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR, ERR_R_MALLOC_FAILURE); |
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goto err; |
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} |
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if (iter <= 0) |
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iter = PKCS5_DEFAULT_ITER; |
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if (!ASN1_INTEGER_set(pbe->iter, iter)) { |
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ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR, ERR_R_MALLOC_FAILURE); |
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goto err; |
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} |
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if (!saltlen) |
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saltlen = PKCS5_SALT_LEN; |
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if (!ASN1_STRING_set(pbe->salt, NULL, saltlen)) { |
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ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR, ERR_R_MALLOC_FAILURE); |
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goto err; |
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} |
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sstr = ASN1_STRING_data(pbe->salt); |
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if (salt) |
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memcpy(sstr, salt, saltlen); |
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else if (RAND_bytes(sstr, saltlen) <= 0) |
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goto err; |
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if (!ASN1_item_pack(pbe, ASN1_ITEM_rptr(PBEPARAM), &pbe_str)) { |
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ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR, ERR_R_MALLOC_FAILURE); |
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goto err; |
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} |
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PBEPARAM_free(pbe); |
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pbe = NULL; |
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if (X509_ALGOR_set0(algor, OBJ_nid2obj(alg), V_ASN1_SEQUENCE, pbe_str)) |
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return 1; |
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err: |
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if (pbe != NULL) |
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PBEPARAM_free(pbe); |
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if (pbe_str != NULL) |
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ASN1_STRING_free(pbe_str); |
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return 0; |
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} |
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/* Return an algorithm identifier for a PKCS#5 PBE algorithm */ |
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X509_ALGOR *PKCS5_pbe_set(int alg, int iter, |
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const unsigned char *salt, int saltlen) |
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{ |
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X509_ALGOR *ret; |
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ret = X509_ALGOR_new(); |
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if (!ret) { |
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ASN1err(ASN1_F_PKCS5_PBE_SET, ERR_R_MALLOC_FAILURE); |
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return NULL; |
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} |
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if (PKCS5_pbe_set0_algor(ret, alg, iter, salt, saltlen)) |
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return ret; |
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X509_ALGOR_free(ret); |
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return NULL; |
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}
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