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diff --git a/src/lib/libcrypto/asn1/p5_pbe.c b/src/lib/libcrypto/asn1/p5_pbe.c
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1/* p5_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 "cryptlib.h"
61#include <openssl/asn1_mac.h>
62#include <openssl/x509.h>
63#include <openssl/rand.h>
64
65/* PKCS#5 password based encryption structure */
66
67int i2d_PBEPARAM(PBEPARAM *a, unsigned char **pp)
68{
69 M_ASN1_I2D_vars(a);
70 M_ASN1_I2D_len (a->salt, i2d_ASN1_OCTET_STRING);
71 M_ASN1_I2D_len (a->iter, i2d_ASN1_INTEGER);
72
73 M_ASN1_I2D_seq_total ();
74
75 M_ASN1_I2D_put (a->salt, i2d_ASN1_OCTET_STRING);
76 M_ASN1_I2D_put (a->iter, i2d_ASN1_INTEGER);
77 M_ASN1_I2D_finish();
78}
79
80PBEPARAM *PBEPARAM_new(void)
81{
82 PBEPARAM *ret=NULL;
83 ASN1_CTX c;
84 M_ASN1_New_Malloc(ret, PBEPARAM);
85 M_ASN1_New(ret->iter,M_ASN1_INTEGER_new);
86 M_ASN1_New(ret->salt,M_ASN1_OCTET_STRING_new);
87 return (ret);
88 M_ASN1_New_Error(ASN1_F_PBEPARAM_NEW);
89}
90
91PBEPARAM *d2i_PBEPARAM(PBEPARAM **a, unsigned char **pp, long length)
92{
93 M_ASN1_D2I_vars(a,PBEPARAM *,PBEPARAM_new);
94 M_ASN1_D2I_Init();
95 M_ASN1_D2I_start_sequence();
96 M_ASN1_D2I_get (ret->salt, d2i_ASN1_OCTET_STRING);
97 M_ASN1_D2I_get (ret->iter, d2i_ASN1_INTEGER);
98 M_ASN1_D2I_Finish(a, PBEPARAM_free, ASN1_F_D2I_PBEPARAM);
99}
100
101void PBEPARAM_free (PBEPARAM *a)
102{
103 if(a==NULL) return;
104 M_ASN1_OCTET_STRING_free(a->salt);
105 M_ASN1_INTEGER_free (a->iter);
106 Free (a);
107}
108
109/* Return an algorithm identifier for a PKCS#5 PBE algorithm */
110
111X509_ALGOR *PKCS5_pbe_set(int alg, int iter, unsigned char *salt,
112 int saltlen)
113{
114 PBEPARAM *pbe;
115 ASN1_OBJECT *al;
116 X509_ALGOR *algor;
117 ASN1_TYPE *astype;
118
119 if (!(pbe = PBEPARAM_new ())) {
120 ASN1err(ASN1_F_ASN1_PBE_SET,ERR_R_MALLOC_FAILURE);
121 return NULL;
122 }
123 if(iter <= 0) iter = PKCS5_DEFAULT_ITER;
124 ASN1_INTEGER_set (pbe->iter, iter);
125 if (!saltlen) saltlen = PKCS5_SALT_LEN;
126 if (!(pbe->salt->data = Malloc (saltlen))) {
127 ASN1err(ASN1_F_ASN1_PBE_SET,ERR_R_MALLOC_FAILURE);
128 return NULL;
129 }
130 pbe->salt->length = saltlen;
131 if (salt) memcpy (pbe->salt->data, salt, saltlen);
132 else if (RAND_pseudo_bytes (pbe->salt->data, saltlen) < 0)
133 return NULL;
134
135 if (!(astype = ASN1_TYPE_new())) {
136 ASN1err(ASN1_F_ASN1_PBE_SET,ERR_R_MALLOC_FAILURE);
137 return NULL;
138 }
139
140 astype->type = V_ASN1_SEQUENCE;
141 if(!ASN1_pack_string(pbe, i2d_PBEPARAM, &astype->value.sequence)) {
142 ASN1err(ASN1_F_ASN1_PBE_SET,ERR_R_MALLOC_FAILURE);
143 return NULL;
144 }
145 PBEPARAM_free (pbe);
146
147 al = OBJ_nid2obj(alg); /* never need to free al */
148 if (!(algor = X509_ALGOR_new())) {
149 ASN1err(ASN1_F_ASN1_PBE_SET,ERR_R_MALLOC_FAILURE);
150 return NULL;
151 }
152 ASN1_OBJECT_free(algor->algorithm);
153 algor->algorithm = al;
154 algor->parameter = astype;
155
156 return (algor);
157}
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