p12_crpt.c revision 296465 
1/* p12_crpt.c */
2/*
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
4 * 1999.
5 */
6/* ====================================================================
7 * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in
18 *    the documentation and/or other materials provided with the
19 *    distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 *    software must display the following acknowledgment:
23 *    "This product includes software developed by the OpenSSL Project
24 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 *    endorse or promote products derived from this software without
28 *    prior written permission. For written permission, please contact
29 *    licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 *    nor may "OpenSSL" appear in their names without prior written
33 *    permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 *    acknowledgment:
37 *    "This product includes software developed by the OpenSSL Project
38 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 *
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com).  This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
57 *
58 */
59
60#include <stdio.h>
61#include "cryptlib.h"
62#include <openssl/pkcs12.h>
63
64/* PKCS#12 specific PBE functions */
65
66void PKCS12_PBE_add(void)
67{
68#ifndef OPENSSL_NO_RC4
69    EVP_PBE_alg_add(NID_pbe_WithSHA1And128BitRC4, EVP_rc4(), EVP_sha1(),
70                    PKCS12_PBE_keyivgen);
71    EVP_PBE_alg_add(NID_pbe_WithSHA1And40BitRC4, EVP_rc4_40(), EVP_sha1(),
72                    PKCS12_PBE_keyivgen);
73#endif
74#ifndef OPENSSL_NO_DES
75    EVP_PBE_alg_add(NID_pbe_WithSHA1And3_Key_TripleDES_CBC,
76                    EVP_des_ede3_cbc(), EVP_sha1(), PKCS12_PBE_keyivgen);
77    EVP_PBE_alg_add(NID_pbe_WithSHA1And2_Key_TripleDES_CBC,
78                    EVP_des_ede_cbc(), EVP_sha1(), PKCS12_PBE_keyivgen);
79#endif
80#ifndef OPENSSL_NO_RC2
81    EVP_PBE_alg_add(NID_pbe_WithSHA1And128BitRC2_CBC, EVP_rc2_cbc(),
82                    EVP_sha1(), PKCS12_PBE_keyivgen);
83    EVP_PBE_alg_add(NID_pbe_WithSHA1And40BitRC2_CBC, EVP_rc2_40_cbc(),
84                    EVP_sha1(), PKCS12_PBE_keyivgen);
85#endif
86}
87
88int PKCS12_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
89                        ASN1_TYPE *param, const EVP_CIPHER *cipher,
90                        const EVP_MD *md, int en_de)
91{
92    PBEPARAM *pbe;
93    int saltlen, iter, ret;
94    unsigned char *salt;
95    const unsigned char *pbuf;
96    unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
97
98    /* Extract useful info from parameter */
99    if (param == NULL || param->type != V_ASN1_SEQUENCE ||
100        param->value.sequence == NULL) {
101        PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN, PKCS12_R_DECODE_ERROR);
102        return 0;
103    }
104
105    pbuf = param->value.sequence->data;
106    if (!(pbe = d2i_PBEPARAM(NULL, &pbuf, param->value.sequence->length))) {
107        PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN, PKCS12_R_DECODE_ERROR);
108        return 0;
109    }
110
111    if (!pbe->iter)
112        iter = 1;
113    else
114        iter = ASN1_INTEGER_get(pbe->iter);
115    salt = pbe->salt->data;
116    saltlen = pbe->salt->length;
117    if (!PKCS12_key_gen(pass, passlen, salt, saltlen, PKCS12_KEY_ID,
118                        iter, EVP_CIPHER_key_length(cipher), key, md)) {
119        PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN, PKCS12_R_KEY_GEN_ERROR);
120        PBEPARAM_free(pbe);
121        return 0;
122    }
123    if (!PKCS12_key_gen(pass, passlen, salt, saltlen, PKCS12_IV_ID,
124                        iter, EVP_CIPHER_iv_length(cipher), iv, md)) {
125        PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN, PKCS12_R_IV_GEN_ERROR);
126        PBEPARAM_free(pbe);
127        return 0;
128    }
129    PBEPARAM_free(pbe);
130    ret = EVP_CipherInit_ex(ctx, cipher, NULL, key, iv, en_de);
131    OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH);
132    OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH);
133    return ret;
134}
135