2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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 * ====================================================================
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).
64 /* PKCS#5 password based encryption structure */
66 #define PKCS5_SALT_LEN 8
69 *ASN1err(ASN1_F_PBEPARAM_NEW,ASN1_R_DECODE_ERROR)
70 *ASN1err(ASN1_F_D2I_PBEPARAM,ASN1_R_DECODE_ERROR)
73 int i2d_PBEPARAM(PBEPARAM *a, unsigned char **pp)
76 M_ASN1_I2D_len (a->salt, i2d_ASN1_OCTET_STRING);
77 M_ASN1_I2D_len (a->iter, i2d_ASN1_INTEGER);
79 M_ASN1_I2D_seq_total ();
81 M_ASN1_I2D_put (a->salt, i2d_ASN1_OCTET_STRING);
82 M_ASN1_I2D_put (a->iter, i2d_ASN1_INTEGER);
86 PBEPARAM *PBEPARAM_new(void)
90 M_ASN1_New_Malloc(ret, PBEPARAM);
91 M_ASN1_New(ret->iter,ASN1_INTEGER_new);
92 M_ASN1_New(ret->salt,ASN1_OCTET_STRING_new);
94 M_ASN1_New_Error(ASN1_F_PBEPARAM_NEW);
97 PBEPARAM *d2i_PBEPARAM(PBEPARAM **a, unsigned char **pp, long length)
99 M_ASN1_D2I_vars(a,PBEPARAM *,PBEPARAM_new);
101 M_ASN1_D2I_start_sequence();
102 M_ASN1_D2I_get (ret->salt, d2i_ASN1_OCTET_STRING);
103 M_ASN1_D2I_get (ret->iter, d2i_ASN1_INTEGER);
104 M_ASN1_D2I_Finish(a, PBEPARAM_free, ASN1_F_D2I_PBEPARAM);
107 void PBEPARAM_free (PBEPARAM *a)
110 ASN1_OCTET_STRING_free(a->salt);
111 ASN1_INTEGER_free (a->iter);
115 /* Return an algorithm identifier for a PKCS#5 PBE algorithm */
117 X509_ALGOR *PKCS5_pbe_set(int alg, int iter, unsigned char *salt,
120 unsigned char *pdata, *ptmp;
127 if (!(pbe = PBEPARAM_new ())) {
128 ASN1err(ASN1_F_ASN1_PBE_SET,ERR_R_MALLOC_FAILURE);
131 ASN1_INTEGER_set (pbe->iter, iter);
132 if (!saltlen) saltlen = PKCS5_SALT_LEN;
133 if (!(pbe->salt->data = Malloc (saltlen))) {
134 ASN1err(ASN1_F_ASN1_PBE_SET,ERR_R_MALLOC_FAILURE);
137 pbe->salt->length = saltlen;
138 if (salt) memcpy (pbe->salt->data, salt, saltlen);
139 else RAND_bytes (pbe->salt->data, saltlen);
140 if (!(plen = i2d_PBEPARAM (pbe, NULL))) {
141 ASN1err(ASN1_F_ASN1_PBE_SET,ASN1_R_ENCODE_ERROR);
144 if (!(pdata = Malloc (plen))) {
145 ASN1err(ASN1_F_ASN1_PBE_SET,ERR_R_MALLOC_FAILURE);
149 i2d_PBEPARAM (pbe, &ptmp);
152 if (!(astype = ASN1_TYPE_new())) {
153 ASN1err(ASN1_F_ASN1_PBE_SET,ERR_R_MALLOC_FAILURE);
157 astype->type = V_ASN1_SEQUENCE;
158 if (!(astype->value.sequence=ASN1_STRING_new())) {
159 ASN1err(ASN1_F_ASN1_PBE_SET,ERR_R_MALLOC_FAILURE);
162 ASN1_STRING_set (astype->value.sequence, pdata, plen);
165 al = OBJ_nid2obj(alg); /* never need to free al */
166 if (!(algor = X509_ALGOR_new())) {
167 ASN1err(ASN1_F_ASN1_PBE_SET,ERR_R_MALLOC_FAILURE);
170 ASN1_OBJECT_free(algor->algorithm);
171 algor->algorithm = al;
172 algor->parameter = astype;