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diff --git a/src/lib/libcrypto/pkcs12/p12_mutl.c b/src/lib/libcrypto/pkcs12/p12_mutl.c
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1/* p12_mutl.c */
2/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
3 * project 1999.
4 */
5/* ====================================================================
6 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
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
18 * distribution.
19 *
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/)"
24 *
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.
29 *
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.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
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 * ====================================================================
52 *
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).
56 *
57 */
58
59#ifndef OPENSSL_NO_HMAC
60#include <stdio.h>
61#include "cryptlib.h"
62#include <openssl/hmac.h>
63#include <openssl/rand.h>
64#include <openssl/pkcs12.h>
65
66/* Generate a MAC */
67int PKCS12_gen_mac (PKCS12 *p12, const char *pass, int passlen,
68 unsigned char *mac, unsigned int *maclen)
69{
70 const EVP_MD *md_type;
71 HMAC_CTX hmac;
72 unsigned char key[PKCS12_MAC_KEY_LENGTH], *salt;
73 int saltlen, iter;
74
75 salt = p12->mac->salt->data;
76 saltlen = p12->mac->salt->length;
77 if (!p12->mac->iter) iter = 1;
78 else iter = ASN1_INTEGER_get (p12->mac->iter);
79 if(!(md_type =
80 EVP_get_digestbyobj (p12->mac->dinfo->algor->algorithm))) {
81 PKCS12err(PKCS12_F_PKCS12_GEN_MAC,PKCS12_R_UNKNOWN_DIGEST_ALGORITHM);
82 return 0;
83 }
84 if(!PKCS12_key_gen (pass, passlen, salt, saltlen, PKCS12_MAC_ID, iter,
85 PKCS12_MAC_KEY_LENGTH, key, md_type)) {
86 PKCS12err(PKCS12_F_PKCS12_GEN_MAC,PKCS12_R_KEY_GEN_ERROR);
87 return 0;
88 }
89 HMAC_CTX_init(&hmac);
90 HMAC_Init_ex(&hmac, key, PKCS12_MAC_KEY_LENGTH, md_type, NULL);
91 HMAC_Update(&hmac, p12->authsafes->d.data->data,
92 p12->authsafes->d.data->length);
93 HMAC_Final(&hmac, mac, maclen);
94 HMAC_CTX_cleanup(&hmac);
95 return 1;
96}
97
98/* Verify the mac */
99int PKCS12_verify_mac (PKCS12 *p12, const char *pass, int passlen)
100{
101 unsigned char mac[EVP_MAX_MD_SIZE];
102 unsigned int maclen;
103 if(p12->mac == NULL) {
104 PKCS12err(PKCS12_F_VERIFY_MAC,PKCS12_R_MAC_ABSENT);
105 return 0;
106 }
107 if (!PKCS12_gen_mac (p12, pass, passlen, mac, &maclen)) {
108 PKCS12err(PKCS12_F_VERIFY_MAC,PKCS12_R_MAC_GENERATION_ERROR);
109 return 0;
110 }
111 if ((maclen != (unsigned int)p12->mac->dinfo->digest->length)
112 || memcmp (mac, p12->mac->dinfo->digest->data, maclen)) return 0;
113 return 1;
114}
115
116/* Set a mac */
117
118int PKCS12_set_mac (PKCS12 *p12, const char *pass, int passlen,
119 unsigned char *salt, int saltlen, int iter, const EVP_MD *md_type)
120{
121 unsigned char mac[EVP_MAX_MD_SIZE];
122 unsigned int maclen;
123
124 if (!md_type) md_type = EVP_sha1();
125 if (PKCS12_setup_mac (p12, iter, salt, saltlen, md_type) ==
126 PKCS12_ERROR) {
127 PKCS12err(PKCS12_F_PKCS12_SET_MAC,PKCS12_R_MAC_SETUP_ERROR);
128 return 0;
129 }
130 if (!PKCS12_gen_mac (p12, pass, passlen, mac, &maclen)) {
131 PKCS12err(PKCS12_F_PKCS12_SET_MAC,PKCS12_R_MAC_GENERATION_ERROR);
132 return 0;
133 }
134 if (!(M_ASN1_OCTET_STRING_set (p12->mac->dinfo->digest, mac, maclen))) {
135 PKCS12err(PKCS12_F_PKCS12_SET_MAC,PKCS12_R_MAC_STRING_SET_ERROR);
136 return 0;
137 }
138 return 1;
139}
140
141/* Set up a mac structure */
142int PKCS12_setup_mac (PKCS12 *p12, int iter, unsigned char *salt, int saltlen,
143 const EVP_MD *md_type)
144{
145 if (!(p12->mac = PKCS12_MAC_DATA_new())) return PKCS12_ERROR;
146 if (iter > 1) {
147 if(!(p12->mac->iter = M_ASN1_INTEGER_new())) {
148 PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE);
149 return 0;
150 }
151 ASN1_INTEGER_set(p12->mac->iter, iter);
152 }
153 if (!saltlen) saltlen = PKCS12_SALT_LEN;
154 p12->mac->salt->length = saltlen;
155 if (!(p12->mac->salt->data = OPENSSL_malloc (saltlen))) {
156 PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE);
157 return 0;
158 }
159 if (!salt) {
160 if (RAND_pseudo_bytes (p12->mac->salt->data, saltlen) < 0)
161 return 0;
162 }
163 else memcpy (p12->mac->salt->data, salt, saltlen);
164 p12->mac->dinfo->algor->algorithm = OBJ_nid2obj(EVP_MD_type(md_type));
165 if (!(p12->mac->dinfo->algor->parameter = ASN1_TYPE_new())) {
166 PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE);
167 return 0;
168 }
169 p12->mac->dinfo->algor->parameter->type = V_ASN1_NULL;
170
171 return 1;
172}
173#endif