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-rw-r--r--src/lib/libcrypto/evp/evp_pbe.c134
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diff --git a/src/lib/libcrypto/evp/evp_pbe.c b/src/lib/libcrypto/evp/evp_pbe.c
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1/* evp_pbe.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 <openssl/evp.h>
61#include <openssl/x509.h>
62#include "cryptlib.h"
63
64/* Password based encryption (PBE) functions */
65
66static STACK *pbe_algs;
67
68/* Setup a cipher context from a PBE algorithm */
69
70typedef struct {
71int pbe_nid;
72EVP_CIPHER *cipher;
73EVP_MD *md;
74EVP_PBE_KEYGEN *keygen;
75} EVP_PBE_CTL;
76
77int EVP_PBE_CipherInit (ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
78 ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de)
79{
80
81 EVP_PBE_CTL *pbetmp, pbelu;
82 int i;
83 pbelu.pbe_nid = OBJ_obj2nid(pbe_obj);
84 if (pbelu.pbe_nid != NID_undef) i = sk_find(pbe_algs, (char *)&pbelu);
85 else i = -1;
86
87 if (i == -1) {
88 char obj_tmp[80];
89 EVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_UNKNOWN_PBE_ALGORITHM);
90 if (!pbe_obj) strcpy (obj_tmp, "NULL");
91 else i2t_ASN1_OBJECT(obj_tmp, 80, pbe_obj);
92 ERR_add_error_data(2, "TYPE=", obj_tmp);
93 return 0;
94 }
95 if (passlen == -1) passlen = strlen(pass);
96 pbetmp = (EVP_PBE_CTL *)sk_value (pbe_algs, i);
97 i = (*pbetmp->keygen)(ctx, pass, passlen, param, pbetmp->cipher,
98 pbetmp->md, en_de);
99 if (!i) {
100 EVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_KEYGEN_FAILURE);
101 return 0;
102 }
103 return 1;
104}
105
106static int pbe_cmp (EVP_PBE_CTL **pbe1, EVP_PBE_CTL **pbe2)
107{
108 return ((*pbe1)->pbe_nid - (*pbe2)->pbe_nid);
109}
110
111/* Add a PBE algorithm */
112
113int EVP_PBE_alg_add (int nid, EVP_CIPHER *cipher, EVP_MD *md,
114 EVP_PBE_KEYGEN *keygen)
115{
116 EVP_PBE_CTL *pbe_tmp;
117 if (!pbe_algs) pbe_algs = sk_new (pbe_cmp);
118 if (!(pbe_tmp = (EVP_PBE_CTL*) Malloc (sizeof(EVP_PBE_CTL)))) {
119 EVPerr(EVP_F_EVP_PBE_ALG_ADD,ERR_R_MALLOC_FAILURE);
120 return 0;
121 }
122 pbe_tmp->pbe_nid = nid;
123 pbe_tmp->cipher = cipher;
124 pbe_tmp->md = md;
125 pbe_tmp->keygen = keygen;
126 sk_push (pbe_algs, (char *)pbe_tmp);
127 return 1;
128}
129
130void EVP_PBE_cleanup(void)
131{
132 sk_pop_free(pbe_algs, FreeFunc);
133 pbe_algs = NULL;
134}