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diff --git a/src/lib/libcrypto/evp/p5_crpt.c b/src/lib/libcrypto/evp/p5_crpt.c
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1/* p5_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 <stdlib.h>
61#include "cryptlib.h"
62#include <openssl/x509.h>
63#include <openssl/evp.h>
64
65/* PKCS#5 v1.5 compatible PBE functions: see PKCS#5 v2.0 for more info.
66 */
67
68void PKCS5_PBE_add(void)
69{
70#ifndef OPENSSL_NO_DES
71# ifndef OPENSSL_NO_MD5
72EVP_PBE_alg_add(NID_pbeWithMD5AndDES_CBC, EVP_des_cbc(), EVP_md5(),
73 PKCS5_PBE_keyivgen);
74# endif
75# ifndef OPENSSL_NO_MD2
76EVP_PBE_alg_add(NID_pbeWithMD2AndDES_CBC, EVP_des_cbc(), EVP_md2(),
77 PKCS5_PBE_keyivgen);
78# endif
79# ifndef OPENSSL_NO_SHA
80EVP_PBE_alg_add(NID_pbeWithSHA1AndDES_CBC, EVP_des_cbc(), EVP_sha1(),
81 PKCS5_PBE_keyivgen);
82# endif
83#endif
84#ifndef OPENSSL_NO_RC2
85# ifndef OPENSSL_NO_MD5
86EVP_PBE_alg_add(NID_pbeWithMD5AndRC2_CBC, EVP_rc2_64_cbc(), EVP_md5(),
87 PKCS5_PBE_keyivgen);
88# endif
89# ifndef OPENSSL_NO_MD2
90EVP_PBE_alg_add(NID_pbeWithMD2AndRC2_CBC, EVP_rc2_64_cbc(), EVP_md2(),
91 PKCS5_PBE_keyivgen);
92# endif
93# ifndef OPENSSL_NO_SHA
94EVP_PBE_alg_add(NID_pbeWithSHA1AndRC2_CBC, EVP_rc2_64_cbc(), EVP_sha1(),
95 PKCS5_PBE_keyivgen);
96# endif
97#endif
98#ifndef OPENSSL_NO_HMAC
99EVP_PBE_alg_add(NID_pbes2, NULL, NULL, PKCS5_v2_PBE_keyivgen);
100#endif
101}
102
103int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *cctx, const char *pass, int passlen,
104 ASN1_TYPE *param, const EVP_CIPHER *cipher, const EVP_MD *md,
105 int en_de)
106{
107 EVP_MD_CTX ctx;
108 unsigned char md_tmp[EVP_MAX_MD_SIZE];
109 unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
110 int i;
111 PBEPARAM *pbe;
112 int saltlen, iter;
113 unsigned char *salt, *pbuf;
114
115 /* Extract useful info from parameter */
116 pbuf = param->value.sequence->data;
117 if (!param || (param->type != V_ASN1_SEQUENCE) ||
118 !(pbe = d2i_PBEPARAM (NULL, &pbuf, param->value.sequence->length))) {
119 EVPerr(EVP_F_PKCS5_PBE_KEYIVGEN,EVP_R_DECODE_ERROR);
120 return 0;
121 }
122
123 if (!pbe->iter) iter = 1;
124 else iter = ASN1_INTEGER_get (pbe->iter);
125 salt = pbe->salt->data;
126 saltlen = pbe->salt->length;
127
128 if(!pass) passlen = 0;
129 else if(passlen == -1) passlen = strlen(pass);
130
131 EVP_MD_CTX_init(&ctx);
132 EVP_DigestInit_ex(&ctx, md, NULL);
133 EVP_DigestUpdate(&ctx, pass, passlen);
134 EVP_DigestUpdate(&ctx, salt, saltlen);
135 PBEPARAM_free(pbe);
136 EVP_DigestFinal_ex(&ctx, md_tmp, NULL);
137 for (i = 1; i < iter; i++) {
138 EVP_DigestInit_ex(&ctx, md, NULL);
139 EVP_DigestUpdate(&ctx, md_tmp, EVP_MD_size(md));
140 EVP_DigestFinal_ex (&ctx, md_tmp, NULL);
141 }
142 EVP_MD_CTX_cleanup(&ctx);
143 OPENSSL_assert(EVP_CIPHER_key_length(cipher) <= sizeof md_tmp);
144 memcpy(key, md_tmp, EVP_CIPHER_key_length(cipher));
145 OPENSSL_assert(EVP_CIPHER_iv_length(cipher) <= 16);
146 memcpy(iv, md_tmp + (16 - EVP_CIPHER_iv_length(cipher)),
147 EVP_CIPHER_iv_length(cipher));
148 EVP_CipherInit_ex(cctx, cipher, NULL, key, iv, en_de);
149 OPENSSL_cleanse(md_tmp, EVP_MAX_MD_SIZE);
150 OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH);
151 OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH);
152 return 1;
153}
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