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
PKCS12_PBE_add(void)65 void PKCS12_PBE_add(void)
66 {
67 #ifndef OPENSSL_NO_RC4
68 EVP_PBE_alg_add(NID_pbe_WithSHA1And128BitRC4, EVP_rc4(), EVP_sha1(),
69 PKCS12_PBE_keyivgen);
70 EVP_PBE_alg_add(NID_pbe_WithSHA1And40BitRC4, EVP_rc4_40(), EVP_sha1(),
71 PKCS12_PBE_keyivgen);
72 #endif
73 #ifndef OPENSSL_NO_DES
74 EVP_PBE_alg_add(NID_pbe_WithSHA1And3_Key_TripleDES_CBC,
75 EVP_des_ede3_cbc(), EVP_sha1(), PKCS12_PBE_keyivgen);
76 EVP_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
80 EVP_PBE_alg_add(NID_pbe_WithSHA1And128BitRC2_CBC, EVP_rc2_cbc(),
81 EVP_sha1(), PKCS12_PBE_keyivgen);
82 EVP_PBE_alg_add(NID_pbe_WithSHA1And40BitRC2_CBC, EVP_rc2_40_cbc(),
83 EVP_sha1(), PKCS12_PBE_keyivgen);
84 #endif
85 }
86
PKCS12_PBE_keyivgen(EVP_CIPHER_CTX * ctx,const char * pass,int passlen,ASN1_TYPE * param,const EVP_CIPHER * cipher,const EVP_MD * md,int en_de)87 int 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