1 /* $OpenBSD: p12_decr.c,v 1.19 2018/05/13 14:22:34 tb Exp $ */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
62 #include <openssl/err.h>
63 #include <openssl/pkcs12.h>
65 /* Encrypt/Decrypt a buffer based on password and algor, result in a
70 PKCS12_pbe_crypt(const X509_ALGOR *algor, const char *pass, int passlen,
71 const unsigned char *in, int inlen, unsigned char **data, int *datalen,
78 EVP_CIPHER_CTX_init(&ctx);
80 if (!EVP_PBE_CipherInit(algor->algorithm, pass, passlen,
81 algor->parameter, &ctx, en_de)) {
83 PKCS12error(PKCS12_R_PKCS12_ALGOR_CIPHERINIT_ERROR);
87 if (!(out = malloc(inlen + EVP_CIPHER_CTX_block_size(&ctx)))) {
88 PKCS12error(ERR_R_MALLOC_FAILURE);
92 if (!EVP_CipherUpdate(&ctx, out, &i, in, inlen)) {
95 PKCS12error(ERR_R_EVP_LIB);
100 if (!EVP_CipherFinal_ex(&ctx, out + i, &i)) {
103 PKCS12error(PKCS12_R_PKCS12_CIPHERFINAL_ERROR);
113 EVP_CIPHER_CTX_cleanup(&ctx);
118 /* Decrypt an OCTET STRING and decode ASN1 structure
119 * if zbuf set zero buffer after use.
123 PKCS12_item_decrypt_d2i(const X509_ALGOR *algor, const ASN1_ITEM *it,
124 const char *pass, int passlen, const ASN1_OCTET_STRING *oct, int zbuf)
127 const unsigned char *p;
131 if (!PKCS12_pbe_crypt(algor, pass, passlen, oct->data, oct->length,
133 PKCS12error(PKCS12_R_PKCS12_PBE_CRYPT_ERROR);
137 ret = ASN1_item_d2i(NULL, &p, outlen, it);
139 explicit_bzero(out, outlen);
141 PKCS12error(PKCS12_R_DECODE_ERROR);
146 /* Encode ASN1 structure and encrypt, return OCTET STRING
147 * if zbuf set zero encoding.
151 PKCS12_item_i2d_encrypt(X509_ALGOR *algor, const ASN1_ITEM *it,
152 const char *pass, int passlen,
155 ASN1_OCTET_STRING *oct;
156 unsigned char *in = NULL;
159 if (!(oct = ASN1_OCTET_STRING_new ())) {
160 PKCS12error(ERR_R_MALLOC_FAILURE);
163 inlen = ASN1_item_i2d(obj, &in, it);
165 PKCS12error(PKCS12_R_ENCODE_ERROR);
168 if (!PKCS12_pbe_crypt(algor, pass, passlen, in, inlen, &oct->data,
170 PKCS12error(PKCS12_R_ENCRYPT_ERROR);
174 explicit_bzero(in, inlen);
180 ASN1_OCTET_STRING_free(oct);
184 IMPLEMENT_PKCS12_STACK_OF(PKCS7)