[thirdparty/openssl.git] / crypto / pkcs12 / p12_mutl.c

/* p12_mutl.c */
/* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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).
 *
 */

#ifndef OPENSSL_NO_HMAC
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/hmac.h>
#include <openssl/rand.h>
#include <openssl/pkcs12.h>

/* Generate a MAC */
int PKCS12_gen_mac (PKCS12 *p12, const char *pass, int passlen,
		    unsigned char *mac, unsigned int *maclen)
{
	const EVP_MD *md_type;
	HMAC_CTX hmac;
	unsigned char key[PKCS12_MAC_KEY_LENGTH], *salt;
	int saltlen, iter;

	salt = p12->mac->salt->data;
	saltlen = p12->mac->salt->length;
	if (!p12->mac->iter) iter = 1;
	else iter = ASN1_INTEGER_get (p12->mac->iter);
    	if(!(md_type =
		 EVP_get_digestbyobj (p12->mac->dinfo->algor->algorithm))) {
		PKCS12err(PKCS12_F_PKCS12_GEN_MAC,PKCS12_R_UNKNOWN_DIGEST_ALGORITHM);
		return 0;
	}
	if(!PKCS12_key_gen (pass, passlen, salt, saltlen, PKCS12_MAC_ID, iter,
				 PKCS12_MAC_KEY_LENGTH, key, md_type)) {
		PKCS12err(PKCS12_F_PKCS12_GEN_MAC,PKCS12_R_KEY_GEN_ERROR);
		return 0;
	}
	HMAC_CTX_init(&hmac);
	HMAC_Init_ex(&hmac, key, PKCS12_MAC_KEY_LENGTH, md_type, NULL);
    	HMAC_Update(&hmac, p12->authsafes->d.data->data,
					 p12->authsafes->d.data->length);
    	HMAC_Final(&hmac, mac, maclen);
    	HMAC_CTX_cleanup(&hmac);
	return 1;
}

/* Verify the mac */
int PKCS12_verify_mac (PKCS12 *p12, const char *pass, int passlen)
{
	unsigned char mac[EVP_MAX_MD_SIZE];
	unsigned int maclen;
	if(p12->mac == NULL) {
		PKCS12err(PKCS12_F_VERIFY_MAC,PKCS12_R_MAC_ABSENT);
		return 0;
	}
	if (!PKCS12_gen_mac (p12, pass, passlen, mac, &maclen)) {
		PKCS12err(PKCS12_F_VERIFY_MAC,PKCS12_R_MAC_GENERATION_ERROR);
		return 0;
	}
	if ((maclen != (unsigned int)p12->mac->dinfo->digest->length)
	|| memcmp (mac, p12->mac->dinfo->digest->data, maclen)) return 0;
	return 1;
}

/* Set a mac */

int PKCS12_set_mac (PKCS12 *p12, const char *pass, int passlen,
	     unsigned char *salt, int saltlen, int iter, const EVP_MD *md_type)
{
	unsigned char mac[EVP_MAX_MD_SIZE];
	unsigned int maclen;

	if (!md_type) md_type = EVP_sha1();
	if (PKCS12_setup_mac (p12, iter, salt, saltlen, md_type) ==
				 	PKCS12_ERROR) {
		PKCS12err(PKCS12_F_PKCS12_SET_MAC,PKCS12_R_MAC_SETUP_ERROR);
		return 0;
	}
	if (!PKCS12_gen_mac (p12, pass, passlen, mac, &maclen)) {
		PKCS12err(PKCS12_F_PKCS12_SET_MAC,PKCS12_R_MAC_GENERATION_ERROR);
		return 0;
	}
	if (!(M_ASN1_OCTET_STRING_set (p12->mac->dinfo->digest, mac, maclen))) {
		PKCS12err(PKCS12_F_PKCS12_SET_MAC,PKCS12_R_MAC_STRING_SET_ERROR);
						return 0;
	}
	return 1;
}

/* Set up a mac structure */
int PKCS12_setup_mac (PKCS12 *p12, int iter, unsigned char *salt, int saltlen,
	     const EVP_MD *md_type)
{
	if (!(p12->mac = PKCS12_MAC_DATA_new())) return PKCS12_ERROR;
	if (iter > 1) {
		if(!(p12->mac->iter = M_ASN1_INTEGER_new())) {
			PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE);
			return 0;
		}
		if (!ASN1_INTEGER_set(p12->mac->iter, iter)) {
			PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE);
			return 0;
		}
	}
	if (!saltlen) saltlen = PKCS12_SALT_LEN;
	p12->mac->salt->length = saltlen;
	if (!(p12->mac->salt->data = OPENSSL_malloc (saltlen))) {
		PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE);
		return 0;
	}
	if (!salt) {
		if (RAND_pseudo_bytes (p12->mac->salt->data, saltlen) < 0)
			return 0;
	}
	else memcpy (p12->mac->salt->data, salt, saltlen);
	p12->mac->dinfo->algor->algorithm = OBJ_nid2obj(EVP_MD_type(md_type));
	if (!(p12->mac->dinfo->algor->parameter = ASN1_TYPE_new())) {
		PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE);
		return 0;
	}
	p12->mac->dinfo->algor->parameter->type = V_ASN1_NULL;
	
	return 1;
}
#endif
Commit	Line	Data
8d8c7266 DSH	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
cf1b7d96	59	#ifndef OPENSSL_NO_HMAC
8d8c7266	60	#include <stdio.h>
ee0508d4	61	#include "cryptlib.h"
ec577822 BM	62	#include <openssl/hmac.h>
	63	#include <openssl/rand.h>
	64	#include <openssl/pkcs12.h>
8d8c7266 DSH	65
8d8c7266 DSH	66	/* Generate a MAC */
61f5b6f3 BL	67	int PKCS12_gen_mac (PKCS12 p12, const char pass, int passlen,
61f5b6f3 BL	68	unsigned char mac, unsigned int maclen)
8d8c7266	69	{
e778802f	70	const EVP_MD *md_type;
8d8c7266 DSH	71	HMAC_CTX hmac;
	72	unsigned char key[PKCS12_MAC_KEY_LENGTH], *salt;
	73	int saltlen, iter;
dbad1690	74
8d8c7266 DSH	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	}
dbad1690	89	HMAC_CTX_init(&hmac);
de941e28 DSH	90	HMAC_Init_ex(&hmac, key, PKCS12_MAC_KEY_LENGTH, md_type, NULL);
de941e28 DSH	91	HMAC_Update(&hmac, p12->authsafes->d.data->data,
8d8c7266	92	p12->authsafes->d.data->length);
de941e28 DSH	93	HMAC_Final(&hmac, mac, maclen);
de941e28 DSH	94	HMAC_CTX_cleanup(&hmac);
8d8c7266 DSH	95	return 1;
	96	}
	97
	98	/* Verify the mac */
61f5b6f3	99	int PKCS12_verify_mac (PKCS12 p12, const char pass, int passlen)
8d8c7266 DSH	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)
a331a305	112	\|\| memcmp (mac, p12->mac->dinfo->digest->data, maclen)) return 0;
8d8c7266 DSH	113	return 1;
	114	}
	115
	116	/* Set a mac */
	117
61f5b6f3	118	int PKCS12_set_mac (PKCS12 p12, const char pass, int passlen,
13588350	119	unsigned char salt, int saltlen, int iter, const EVP_MD md_type)
8d8c7266 DSH	120	{
8d8c7266 DSH	121	unsigned char mac[EVP_MAX_MD_SIZE];
61f5b6f3 BL	122	unsigned int maclen;
61f5b6f3 BL	123
8d8c7266 DSH	124	if (!md_type) md_type = EVP_sha1();
	125	if (PKCS12_setup_mac (p12, iter, salt, saltlen, md_type) ==
	126	PKCS12_ERROR) {
6e781e8e	127	PKCS12err(PKCS12_F_PKCS12_SET_MAC,PKCS12_R_MAC_SETUP_ERROR);
8d8c7266 DSH	128	return 0;
	129	}
	130	if (!PKCS12_gen_mac (p12, pass, passlen, mac, &maclen)) {
6e781e8e	131	PKCS12err(PKCS12_F_PKCS12_SET_MAC,PKCS12_R_MAC_GENERATION_ERROR);
8d8c7266 DSH	132	return 0;
8d8c7266 DSH	133	}
08e9c1af	134	if (!(M_ASN1_OCTET_STRING_set (p12->mac->dinfo->digest, mac, maclen))) {
6e781e8e	135	PKCS12err(PKCS12_F_PKCS12_SET_MAC,PKCS12_R_MAC_STRING_SET_ERROR);
8d8c7266 DSH	136	return 0;
	137	}
	138	return 1;
	139	}
	140
	141	/* Set up a mac structure */
6b691a5c	142	int PKCS12_setup_mac (PKCS12 p12, int iter, unsigned char salt, int saltlen,
13588350	143	const EVP_MD *md_type)
8d8c7266	144	{
08e9c1af	145	if (!(p12->mac = PKCS12_MAC_DATA_new())) return PKCS12_ERROR;
8d8c7266	146	if (iter > 1) {
08e9c1af	147	if(!(p12->mac->iter = M_ASN1_INTEGER_new())) {
8d8c7266 DSH	148	PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE);
	149	return 0;
	150	}
a0e7c8ee DSH	151	if (!ASN1_INTEGER_set(p12->mac->iter, iter)) {
	152	PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE);
	153	return 0;
	154	}
8d8c7266 DSH	155	}
	156	if (!saltlen) saltlen = PKCS12_SALT_LEN;
	157	p12->mac->salt->length = saltlen;
26a3a48d	158	if (!(p12->mac->salt->data = OPENSSL_malloc (saltlen))) {
8d8c7266 DSH	159	PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE);
	160	return 0;
	161	}
e7f97e2d	162	if (!salt) {
d6f68fa3	163	if (RAND_pseudo_bytes (p12->mac->salt->data, saltlen) < 0)
e7f97e2d UM	164	return 0;
e7f97e2d UM	165	}
8d8c7266	166	else memcpy (p12->mac->salt->data, salt, saltlen);
bc37a6b8	167	p12->mac->dinfo->algor->algorithm = OBJ_nid2obj(EVP_MD_type(md_type));
8d8c7266 DSH	168	if (!(p12->mac->dinfo->algor->parameter = ASN1_TYPE_new())) {
	169	PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE);
	170	return 0;
	171	}
	172	p12->mac->dinfo->algor->parameter->type = V_ASN1_NULL;
	173
	174	return 1;
	175	}
5676d8cb	176	#endif