2 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
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).
60 # include "internal/cryptlib.h"
61 # include <openssl/crypto.h>
62 # include <openssl/hmac.h>
63 # include <openssl/rand.h>
64 # include <openssl/pkcs12.h>
67 int PKCS12_mac_present(PKCS12 *p12)
69 return p12->mac ? 1 : 0;
72 void PKCS12_get0_mac(ASN1_OCTET_STRING **pmac, X509_ALGOR **pmacalg,
73 ASN1_OCTET_STRING **psalt, ASN1_INTEGER **piter,
77 X509_SIG_get0(pmacalg, pmac, p12->mac->dinfo);
79 *psalt = p12->mac->salt;
81 *piter = p12->mac->iter;
94 # define TK26_MAC_KEY_LEN 32
96 static int pkcs12_gen_gost_mac_key(const char *pass, int passlen,
97 const unsigned char *salt, int saltlen,
98 int iter, int keylen, unsigned char *key,
101 unsigned char out[96];
103 if (keylen != TK26_MAC_KEY_LEN) {
107 if (!PKCS5_PBKDF2_HMAC(pass, passlen, salt, saltlen, iter,
108 digest, sizeof(out), out)) {
111 memcpy(key, out + sizeof(out) - TK26_MAC_KEY_LEN, TK26_MAC_KEY_LEN);
112 OPENSSL_cleanse(out, sizeof(out));
117 int PKCS12_gen_mac(PKCS12 *p12, const char *pass, int passlen,
118 unsigned char *mac, unsigned int *maclen)
120 const EVP_MD *md_type;
121 HMAC_CTX *hmac = NULL;
122 unsigned char key[EVP_MAX_MD_SIZE], *salt;
129 if (!PKCS7_type_is_data(p12->authsafes)) {
130 PKCS12err(PKCS12_F_PKCS12_GEN_MAC, PKCS12_R_CONTENT_TYPE_NOT_DATA);
134 salt = p12->mac->salt->data;
135 saltlen = p12->mac->salt->length;
139 iter = ASN1_INTEGER_get(p12->mac->iter);
140 X509_SIG_get0(&macalg, NULL, p12->mac->dinfo);
141 X509_ALGOR_get0(&macoid, NULL, NULL, macalg);
142 if ((md_type = EVP_get_digestbyobj(macoid)) == NULL) {
143 PKCS12err(PKCS12_F_PKCS12_GEN_MAC, PKCS12_R_UNKNOWN_DIGEST_ALGORITHM);
146 md_size = EVP_MD_size(md_type);
147 md_type_nid = EVP_MD_type(md_type);
150 if ((md_type_nid == NID_id_GostR3411_94
151 || md_type_nid == NID_id_GostR3411_2012_256
152 || md_type_nid == NID_id_GostR3411_2012_512)
153 && !getenv("LEGACY_GOST_PKCS12")) {
154 md_size = TK26_MAC_KEY_LEN;
155 if (!pkcs12_gen_gost_mac_key(pass, passlen, salt, saltlen, iter,
156 md_size, key, md_type)) {
157 PKCS12err(PKCS12_F_PKCS12_GEN_MAC, PKCS12_R_KEY_GEN_ERROR);
161 if (!PKCS12_key_gen(pass, passlen, salt, saltlen, PKCS12_MAC_ID, iter,
162 md_size, key, md_type)) {
163 PKCS12err(PKCS12_F_PKCS12_GEN_MAC, PKCS12_R_KEY_GEN_ERROR);
166 hmac = HMAC_CTX_new();
167 if (!HMAC_Init_ex(hmac, key, md_size, md_type, NULL)
168 || !HMAC_Update(hmac, p12->authsafes->d.data->data,
169 p12->authsafes->d.data->length)
170 || !HMAC_Final(hmac, mac, maclen)) {
179 int PKCS12_verify_mac(PKCS12 *p12, const char *pass, int passlen)
181 unsigned char mac[EVP_MAX_MD_SIZE];
183 ASN1_OCTET_STRING *macoct;
185 if (p12->mac == NULL) {
186 PKCS12err(PKCS12_F_PKCS12_VERIFY_MAC, PKCS12_R_MAC_ABSENT);
189 if (!PKCS12_gen_mac(p12, pass, passlen, mac, &maclen)) {
190 PKCS12err(PKCS12_F_PKCS12_VERIFY_MAC, PKCS12_R_MAC_GENERATION_ERROR);
193 X509_SIG_get0(NULL, &macoct, p12->mac->dinfo);
194 if ((maclen != (unsigned int)ASN1_STRING_length(macoct))
195 || CRYPTO_memcmp(mac, ASN1_STRING_data(macoct), maclen))
202 int PKCS12_set_mac(PKCS12 *p12, const char *pass, int passlen,
203 unsigned char *salt, int saltlen, int iter,
204 const EVP_MD *md_type)
206 unsigned char mac[EVP_MAX_MD_SIZE];
208 ASN1_OCTET_STRING *macoct;
211 md_type = EVP_sha1();
212 if (PKCS12_setup_mac(p12, iter, salt, saltlen, md_type) == PKCS12_ERROR) {
213 PKCS12err(PKCS12_F_PKCS12_SET_MAC, PKCS12_R_MAC_SETUP_ERROR);
216 if (!PKCS12_gen_mac(p12, pass, passlen, mac, &maclen)) {
217 PKCS12err(PKCS12_F_PKCS12_SET_MAC, PKCS12_R_MAC_GENERATION_ERROR);
220 X509_SIG_get0(NULL, &macoct, p12->mac->dinfo);
221 if (!ASN1_OCTET_STRING_set(macoct, mac, maclen)) {
222 PKCS12err(PKCS12_F_PKCS12_SET_MAC, PKCS12_R_MAC_STRING_SET_ERROR);
228 /* Set up a mac structure */
229 int PKCS12_setup_mac(PKCS12 *p12, int iter, unsigned char *salt, int saltlen,
230 const EVP_MD *md_type)
234 if ((p12->mac = PKCS12_MAC_DATA_new()) == NULL)
237 if ((p12->mac->iter = ASN1_INTEGER_new()) == NULL) {
238 PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE);
241 if (!ASN1_INTEGER_set(p12->mac->iter, iter)) {
242 PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE);
247 saltlen = PKCS12_SALT_LEN;
248 if ((p12->mac->salt->data = OPENSSL_malloc(saltlen)) == NULL) {
249 PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE);
252 p12->mac->salt->length = saltlen;
254 if (RAND_bytes(p12->mac->salt->data, saltlen) <= 0)
257 memcpy(p12->mac->salt->data, salt, saltlen);
258 X509_SIG_get0(&macalg, NULL, p12->mac->dinfo);
259 if (!X509_ALGOR_set0(macalg, OBJ_nid2obj(EVP_MD_type(md_type)),
260 V_ASN1_NULL, NULL)) {
261 PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE);