Remove references to o_time.h
[openssl.git] / crypto / asn1 / p8_pkey.c
1 /* p8_pkey.c */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3  * project 1999.
4  */
5 /* ====================================================================
6  * Copyright (c) 1999-2005 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/asn1t.h>
62 #include <openssl/x509.h>
63
64 /* Minor tweak to operation: zero private key data */
65 static int pkey_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
66                                                         void *exarg)
67 {
68         /* Since the structure must still be valid use ASN1_OP_FREE_PRE */
69         if(operation == ASN1_OP_FREE_PRE) {
70                 PKCS8_PRIV_KEY_INFO *key = (PKCS8_PRIV_KEY_INFO *)*pval;
71                 if (key->pkey->value.octet_string)
72                 OPENSSL_cleanse(key->pkey->value.octet_string->data,
73                         key->pkey->value.octet_string->length);
74         }
75         return 1;
76 }
77
78 ASN1_SEQUENCE_cb(PKCS8_PRIV_KEY_INFO, pkey_cb) = {
79         ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, version, ASN1_INTEGER),
80         ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, pkeyalg, X509_ALGOR),
81         ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, pkey, ASN1_ANY),
82         ASN1_IMP_SET_OF_OPT(PKCS8_PRIV_KEY_INFO, attributes, X509_ATTRIBUTE, 0)
83 } ASN1_SEQUENCE_END_cb(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO)
84
85 IMPLEMENT_ASN1_FUNCTIONS(PKCS8_PRIV_KEY_INFO)
86
87 int PKCS8_pkey_set0(PKCS8_PRIV_KEY_INFO *priv, ASN1_OBJECT *aobj,
88                                         int version,
89                                         int ptype, void *pval,
90                                         unsigned char *penc, int penclen)
91         {
92         unsigned char **ppenc = NULL;
93         if (version >= 0)
94                 {
95                 if (!ASN1_INTEGER_set(priv->version, version))
96                         return 0;
97                 }
98         if (penc)
99                 {
100                 int pmtype;
101                 ASN1_OCTET_STRING *oct;
102                 oct = ASN1_OCTET_STRING_new();
103                 if (!oct)
104                         return 0;
105                 oct->data = penc;
106                 ppenc = &oct->data;
107                 oct->length = penclen;
108                 if (priv->broken == PKCS8_NO_OCTET)
109                         pmtype = V_ASN1_SEQUENCE;
110                 else
111                         pmtype = V_ASN1_OCTET_STRING;
112                 ASN1_TYPE_set(priv->pkey, pmtype, oct);
113                 }
114         if (!X509_ALGOR_set0(priv->pkeyalg, aobj, ptype, pval))
115                 {
116                 /* If call fails do not swallow 'enc' */
117                 if (ppenc)
118                         *ppenc = NULL;
119                 return 0;
120                 }
121         return 1;
122         }
123
124 int PKCS8_pkey_get0(ASN1_OBJECT **ppkalg,
125                 const unsigned char **pk, int *ppklen,
126                 X509_ALGOR **pa,
127                 PKCS8_PRIV_KEY_INFO *p8)
128         {
129         if (ppkalg)
130                 *ppkalg = p8->pkeyalg->algorithm;
131         if(p8->pkey->type == V_ASN1_OCTET_STRING)
132                 {
133                 p8->broken = PKCS8_OK;
134                 if (pk)
135                         {
136                         *pk = p8->pkey->value.octet_string->data;
137                         *ppklen = p8->pkey->value.octet_string->length;
138                         }
139                 }
140         else if (p8->pkey->type == V_ASN1_SEQUENCE)
141                 {
142                 p8->broken = PKCS8_NO_OCTET;
143                 if (pk)
144                         {
145                         *pk = p8->pkey->value.sequence->data;
146                         *ppklen = p8->pkey->value.sequence->length;
147                         }
148                 }
149         else
150                 return 0;
151         if (pa)
152                 *pa = p8->pkeyalg;
153         return 1;
154         }
155