327be53a74c0fd7bc9122ab5159aaa118ec1b404
[openssl.git] / crypto / asn1 / p5_pbev2.c
1 /* p5_pbev2.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/rand.h>
63
64 /* PKCS#5 v2.0 password based encryption structures */
65
66 /*
67  *ASN1err(ASN1_F_PBE2PARAM_NEW,ASN1_R_DECODE_ERROR)
68  *ASN1err(ASN1_F_D2I_PBE2PARAM,ASN1_R_DECODE_ERROR)
69  *ASN1err(ASN1_F_PBKDF2PARAM_NEW,ASN1_R_DECODE_ERROR)
70  *ASN1err(ASN1_F_D2I_PBKDF2PARAM,ASN1_R_DECODE_ERROR)
71  */
72
73 int i2d_PBE2PARAM(PBE2PARAM *a, unsigned char **pp)
74 {
75         M_ASN1_I2D_vars(a);
76         M_ASN1_I2D_len (a->keyfunc, i2d_X509_ALGOR);
77         M_ASN1_I2D_len (a->encryption, i2d_X509_ALGOR);
78
79         M_ASN1_I2D_seq_total ();
80
81         M_ASN1_I2D_put (a->keyfunc, i2d_X509_ALGOR);
82         M_ASN1_I2D_put (a->encryption, i2d_X509_ALGOR);
83
84         M_ASN1_I2D_finish();
85 }
86
87 PBE2PARAM *PBE2PARAM_new(void)
88 {
89         PBE2PARAM *ret=NULL;
90         ASN1_CTX c;
91         M_ASN1_New_Malloc(ret, PBE2PARAM);
92         M_ASN1_New(ret->keyfunc,X509_ALGOR_new);
93         M_ASN1_New(ret->encryption,X509_ALGOR_new);
94         return (ret);
95         M_ASN1_New_Error(ASN1_F_PBE2PARAM_NEW);
96 }
97
98 PBE2PARAM *d2i_PBE2PARAM(PBE2PARAM **a, unsigned char **pp, long length)
99 {
100         M_ASN1_D2I_vars(a,PBE2PARAM *,PBE2PARAM_new);
101         M_ASN1_D2I_Init();
102         M_ASN1_D2I_start_sequence();
103         M_ASN1_D2I_get (ret->keyfunc, d2i_X509_ALGOR);
104         M_ASN1_D2I_get (ret->encryption, d2i_X509_ALGOR);
105         M_ASN1_D2I_Finish(a, PBE2PARAM_free, ASN1_F_D2I_PBE2PARAM);
106 }
107
108 void PBE2PARAM_free (PBE2PARAM *a)
109 {
110         if(a==NULL) return;
111         X509_ALGOR_free(a->keyfunc);
112         X509_ALGOR_free(a->encryption);
113         Free ((char *)a);
114 }
115
116 int i2d_PBKDF2PARAM(PBKDF2PARAM *a, unsigned char **pp)
117 {
118         M_ASN1_I2D_vars(a);
119         M_ASN1_I2D_len (a->salt, i2d_ASN1_OCTET_STRING);
120         M_ASN1_I2D_len (a->iter, i2d_ASN1_INTEGER);
121         M_ASN1_I2D_len (a->keylength, i2d_ASN1_INTEGER);
122         M_ASN1_I2D_len (a->prf, i2d_X509_ALGOR);
123
124         M_ASN1_I2D_seq_total ();
125
126         M_ASN1_I2D_put (a->salt, i2d_ASN1_OCTET_STRING);
127         M_ASN1_I2D_put (a->iter, i2d_ASN1_INTEGER);
128         M_ASN1_I2D_put (a->keylength, i2d_ASN1_INTEGER);
129         M_ASN1_I2D_put (a->prf, i2d_X509_ALGOR);
130
131         M_ASN1_I2D_finish();
132 }
133
134 PBKDF2PARAM *PBKDF2PARAM_new(void)
135 {
136         PBKDF2PARAM *ret=NULL;
137         ASN1_CTX c;
138         M_ASN1_New_Malloc(ret, PBKDF2PARAM);
139         M_ASN1_New(ret->salt, ASN1_OCTET_STRING_new);
140         M_ASN1_New(ret->iter, ASN1_INTEGER_new);
141         ret->keylength = NULL;
142         ret->prf = NULL;
143         return (ret);
144         M_ASN1_New_Error(ASN1_F_PBKDF2PARAM_NEW);
145 }
146
147 PBKDF2PARAM *d2i_PBKDF2PARAM(PBKDF2PARAM **a, unsigned char **pp,
148              long length)
149 {
150         M_ASN1_D2I_vars(a,PBKDF2PARAM *,PBKDF2PARAM_new);
151         M_ASN1_D2I_Init();
152         M_ASN1_D2I_start_sequence();
153         M_ASN1_D2I_get (ret->salt, d2i_ASN1_OCTET_STRING);
154         M_ASN1_D2I_get (ret->iter, d2i_ASN1_INTEGER);
155         M_ASN1_D2I_get_opt (ret->keylength, d2i_ASN1_INTEGER, V_ASN1_INTEGER);
156         M_ASN1_D2I_get_opt (ret->prf, d2i_X509_ALGOR, V_ASN1_SEQUENCE);
157         M_ASN1_D2I_Finish(a, PBKDF2PARAM_free, ASN1_F_D2I_PBKDF2PARAM);
158 }
159
160 void PBKDF2PARAM_free (PBKDF2PARAM *a)
161 {
162         if(a==NULL) return;
163         ASN1_OCTET_STRING_free(a->salt);
164         ASN1_INTEGER_free(a->iter);
165         ASN1_INTEGER_free(a->keylength);
166         X509_ALGOR_free(a->prf);
167         Free ((char *)a);
168 }
169