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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 | |
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