p12_crpt.c revision 160814 
1/* p12_crpt.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#include <stdio.h>
60#include "cryptlib.h"
61#include <openssl/pkcs12.h>
62
63/* PKCS#12 specific PBE functions */
64
65void PKCS12_PBE_add(void)
66{
67#ifndef OPENSSL_NO_RC4
68EVP_PBE_alg_add(NID_pbe_WithSHA1And128BitRC4, EVP_rc4(), EVP_sha1(),
69							 PKCS12_PBE_keyivgen);
70EVP_PBE_alg_add(NID_pbe_WithSHA1And40BitRC4, EVP_rc4_40(), EVP_sha1(),
71							 PKCS12_PBE_keyivgen);
72#endif
73#ifndef OPENSSL_NO_DES
74EVP_PBE_alg_add(NID_pbe_WithSHA1And3_Key_TripleDES_CBC,
75		 	EVP_des_ede3_cbc(), EVP_sha1(), PKCS12_PBE_keyivgen);
76EVP_PBE_alg_add(NID_pbe_WithSHA1And2_Key_TripleDES_CBC,
77			EVP_des_ede_cbc(), EVP_sha1(), PKCS12_PBE_keyivgen);
78#endif
79#ifndef OPENSSL_NO_RC2
80EVP_PBE_alg_add(NID_pbe_WithSHA1And128BitRC2_CBC, EVP_rc2_cbc(),
81					EVP_sha1(), PKCS12_PBE_keyivgen);
82EVP_PBE_alg_add(NID_pbe_WithSHA1And40BitRC2_CBC, EVP_rc2_40_cbc(),
83					EVP_sha1(), PKCS12_PBE_keyivgen);
84#endif
85}
86
87int PKCS12_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
88		ASN1_TYPE *param, const EVP_CIPHER *cipher, const EVP_MD *md, int en_de)
89{
90	PBEPARAM *pbe;
91	int saltlen, iter, ret;
92	unsigned char *salt;
93	const unsigned char *pbuf;
94	unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
95
96	/* Extract useful info from parameter */
97	if (param == NULL || param->type != V_ASN1_SEQUENCE ||
98	    param->value.sequence == NULL) {
99		PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN,PKCS12_R_DECODE_ERROR);
100		return 0;
101	}
102
103	pbuf = param->value.sequence->data;
104	if (!(pbe = d2i_PBEPARAM(NULL, &pbuf, param->value.sequence->length))) {
105		PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN,PKCS12_R_DECODE_ERROR);
106		return 0;
107	}
108
109	if (!pbe->iter) iter = 1;
110	else iter = ASN1_INTEGER_get (pbe->iter);
111	salt = pbe->salt->data;
112	saltlen = pbe->salt->length;
113	if (!PKCS12_key_gen (pass, passlen, salt, saltlen, PKCS12_KEY_ID,
114			     iter, EVP_CIPHER_key_length(cipher), key, md)) {
115		PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN,PKCS12_R_KEY_GEN_ERROR);
116		PBEPARAM_free(pbe);
117		return 0;
118	}
119	if (!PKCS12_key_gen (pass, passlen, salt, saltlen, PKCS12_IV_ID,
120				iter, EVP_CIPHER_iv_length(cipher), iv, md)) {
121		PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN,PKCS12_R_IV_GEN_ERROR);
122		PBEPARAM_free(pbe);
123		return 0;
124	}
125	PBEPARAM_free(pbe);
126	ret = EVP_CipherInit_ex(ctx, cipher, NULL, key, iv, en_de);
127	OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH);
128	OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH);
129	return ret;
130}
131