Line data Source code
1 : /* p8_pkey.c */
2 : /*
3 : * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
4 : * 1999.
5 : */
6 : /* ====================================================================
7 : * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved.
8 : *
9 : * Redistribution and use in source and binary forms, with or without
10 : * modification, are permitted provided that the following conditions
11 : * are met:
12 : *
13 : * 1. Redistributions of source code must retain the above copyright
14 : * notice, this list of conditions and the following disclaimer.
15 : *
16 : * 2. Redistributions in binary form must reproduce the above copyright
17 : * notice, this list of conditions and the following disclaimer in
18 : * the documentation and/or other materials provided with the
19 : * distribution.
20 : *
21 : * 3. All advertising materials mentioning features or use of this
22 : * software must display the following acknowledgment:
23 : * "This product includes software developed by the OpenSSL Project
24 : * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 : *
26 : * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 : * endorse or promote products derived from this software without
28 : * prior written permission. For written permission, please contact
29 : * licensing@OpenSSL.org.
30 : *
31 : * 5. Products derived from this software may not be called "OpenSSL"
32 : * nor may "OpenSSL" appear in their names without prior written
33 : * permission of the OpenSSL Project.
34 : *
35 : * 6. Redistributions of any form whatsoever must retain the following
36 : * acknowledgment:
37 : * "This product includes software developed by the OpenSSL Project
38 : * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 : *
40 : * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 : * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 : * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 : * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 : * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 : * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 : * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 : * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 : * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 : * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 : * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 : * OF THE POSSIBILITY OF SUCH DAMAGE.
52 : * ====================================================================
53 : *
54 : * This product includes cryptographic software written by Eric Young
55 : * (eay@cryptsoft.com). This product includes software written by Tim
56 : * Hudson (tjh@cryptsoft.com).
57 : *
58 : */
59 :
60 : #include <stdio.h>
61 : #include "cryptlib.h"
62 : #include <openssl/asn1t.h>
63 : #include <openssl/x509.h>
64 :
65 : /* Minor tweak to operation: zero private key data */
66 72 : static int pkey_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
67 : void *exarg)
68 : {
69 : /* Since the structure must still be valid use ASN1_OP_FREE_PRE */
70 72 : if (operation == ASN1_OP_FREE_PRE) {
71 12 : PKCS8_PRIV_KEY_INFO *key = (PKCS8_PRIV_KEY_INFO *)*pval;
72 12 : if (key->pkey && key->pkey->type == V_ASN1_OCTET_STRING
73 12 : && key->pkey->value.octet_string != NULL)
74 12 : OPENSSL_cleanse(key->pkey->value.octet_string->data,
75 12 : key->pkey->value.octet_string->length);
76 : }
77 72 : return 1;
78 : }
79 :
80 : ASN1_SEQUENCE_cb(PKCS8_PRIV_KEY_INFO, pkey_cb) = {
81 : ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, version, ASN1_INTEGER),
82 : ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, pkeyalg, X509_ALGOR),
83 : ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, pkey, ASN1_ANY),
84 : ASN1_IMP_SET_OF_OPT(PKCS8_PRIV_KEY_INFO, attributes, X509_ATTRIBUTE, 0)
85 : } ASN1_SEQUENCE_END_cb(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO)
86 :
87 24 : IMPLEMENT_ASN1_FUNCTIONS(PKCS8_PRIV_KEY_INFO)
88 :
89 0 : int PKCS8_pkey_set0(PKCS8_PRIV_KEY_INFO *priv, ASN1_OBJECT *aobj,
90 : int version,
91 : int ptype, void *pval, unsigned char *penc, int penclen)
92 : {
93 : unsigned char **ppenc = NULL;
94 0 : if (version >= 0) {
95 0 : if (!ASN1_INTEGER_set(priv->version, version))
96 : return 0;
97 : }
98 0 : if (penc) {
99 : int pmtype;
100 : ASN1_OCTET_STRING *oct;
101 0 : oct = ASN1_OCTET_STRING_new();
102 0 : if (!oct)
103 : return 0;
104 0 : oct->data = penc;
105 0 : ppenc = &oct->data;
106 0 : oct->length = penclen;
107 0 : if (priv->broken == PKCS8_NO_OCTET)
108 : pmtype = V_ASN1_SEQUENCE;
109 : else
110 : pmtype = V_ASN1_OCTET_STRING;
111 0 : ASN1_TYPE_set(priv->pkey, pmtype, oct);
112 : }
113 0 : if (!X509_ALGOR_set0(priv->pkeyalg, aobj, ptype, pval)) {
114 : /* If call fails do not swallow 'enc' */
115 0 : if (ppenc)
116 0 : *ppenc = NULL;
117 : return 0;
118 : }
119 : return 1;
120 : }
121 :
122 24 : int PKCS8_pkey_get0(ASN1_OBJECT **ppkalg,
123 : const unsigned char **pk, int *ppklen,
124 : X509_ALGOR **pa, PKCS8_PRIV_KEY_INFO *p8)
125 : {
126 24 : if (ppkalg)
127 12 : *ppkalg = p8->pkeyalg->algorithm;
128 24 : if (p8->pkey->type == V_ASN1_OCTET_STRING) {
129 24 : p8->broken = PKCS8_OK;
130 24 : if (pk) {
131 12 : *pk = p8->pkey->value.octet_string->data;
132 12 : *ppklen = p8->pkey->value.octet_string->length;
133 : }
134 0 : } else if (p8->pkey->type == V_ASN1_SEQUENCE) {
135 0 : p8->broken = PKCS8_NO_OCTET;
136 0 : if (pk) {
137 0 : *pk = p8->pkey->value.sequence->data;
138 0 : *ppklen = p8->pkey->value.sequence->length;
139 : }
140 : } else
141 : return 0;
142 24 : if (pa)
143 0 : *pa = p8->pkeyalg;
144 : return 1;
145 : }
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