| /* p5_pbe.c */ |
| /* Written by Dr Stephen N Henson (steve@openssl.org) 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). |
| * |
| */ |
| |
| #include <stdio.h> |
| #include "cryptlib.h" |
| #include <openssl/asn1t.h> |
| #include <openssl/x509.h> |
| #include <openssl/rand.h> |
| |
| /* PKCS#5 password based encryption structure */ |
| |
| ASN1_SEQUENCE(PBEPARAM) = { |
| 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; |
| |
| pbe = PBEPARAM_new(); |
| if (!pbe) |
| { |
| 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; |
| if (!ASN1_STRING_set(pbe->salt, NULL, saltlen)) |
| { |
| ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR,ERR_R_MALLOC_FAILURE); |
| goto err; |
| } |
| sstr = ASN1_STRING_data(pbe->salt); |
| if (salt) |
| memcpy(sstr, salt, saltlen); |
| else if (RAND_pseudo_bytes(sstr, saltlen) < 0) |
| goto err; |
| |
| 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: |
| if (pbe != NULL) |
| PBEPARAM_free(pbe); |
| if (pbe_str != NULL) |
| 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, |
| const unsigned char *salt, int saltlen) |
| { |
| X509_ALGOR *ret; |
| ret = X509_ALGOR_new(); |
| if (!ret) |
| { |
| 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; |
| } |