Line data Source code
1 : /* evp_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 <stdlib.h>
62 : #include "cryptlib.h"
63 : #include <openssl/x509.h>
64 : #include <openssl/rand.h>
65 : #include "asn1_locl.h"
66 :
67 : /* Extract a private key from a PKCS8 structure */
68 :
69 12 : EVP_PKEY *EVP_PKCS82PKEY(PKCS8_PRIV_KEY_INFO *p8)
70 : {
71 : EVP_PKEY *pkey = NULL;
72 : ASN1_OBJECT *algoid;
73 : char obj_tmp[80];
74 :
75 12 : if (!PKCS8_pkey_get0(&algoid, NULL, NULL, NULL, p8))
76 : return NULL;
77 :
78 12 : if (!(pkey = EVP_PKEY_new())) {
79 0 : EVPerr(EVP_F_EVP_PKCS82PKEY, ERR_R_MALLOC_FAILURE);
80 0 : return NULL;
81 : }
82 :
83 12 : if (!EVP_PKEY_set_type(pkey, OBJ_obj2nid(algoid))) {
84 0 : EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
85 0 : i2t_ASN1_OBJECT(obj_tmp, 80, algoid);
86 0 : ERR_add_error_data(2, "TYPE=", obj_tmp);
87 0 : goto error;
88 : }
89 :
90 12 : if (pkey->ameth->priv_decode) {
91 12 : if (!pkey->ameth->priv_decode(pkey, p8)) {
92 0 : EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_PRIVATE_KEY_DECODE_ERROR);
93 0 : goto error;
94 : }
95 : } else {
96 0 : EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_METHOD_NOT_SUPPORTED);
97 0 : goto error;
98 : }
99 :
100 : return pkey;
101 :
102 : error:
103 0 : EVP_PKEY_free(pkey);
104 0 : return NULL;
105 : }
106 :
107 0 : PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(EVP_PKEY *pkey)
108 : {
109 0 : return EVP_PKEY2PKCS8_broken(pkey, PKCS8_OK);
110 : }
111 :
112 : /* Turn a private key into a PKCS8 structure */
113 :
114 0 : PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8_broken(EVP_PKEY *pkey, int broken)
115 : {
116 : PKCS8_PRIV_KEY_INFO *p8;
117 :
118 0 : if (!(p8 = PKCS8_PRIV_KEY_INFO_new())) {
119 0 : EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN, ERR_R_MALLOC_FAILURE);
120 0 : return NULL;
121 : }
122 0 : p8->broken = broken;
123 :
124 0 : if (pkey->ameth) {
125 0 : if (pkey->ameth->priv_encode) {
126 0 : if (!pkey->ameth->priv_encode(p8, pkey)) {
127 0 : EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN,
128 : EVP_R_PRIVATE_KEY_ENCODE_ERROR);
129 0 : goto error;
130 : }
131 : } else {
132 0 : EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN, EVP_R_METHOD_NOT_SUPPORTED);
133 0 : goto error;
134 : }
135 : } else {
136 0 : EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN,
137 : EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
138 0 : goto error;
139 : }
140 0 : RAND_add(p8->pkey->value.octet_string->data,
141 0 : p8->pkey->value.octet_string->length, 0.0);
142 0 : return p8;
143 : error:
144 0 : PKCS8_PRIV_KEY_INFO_free(p8);
145 0 : return NULL;
146 : }
147 :
148 0 : PKCS8_PRIV_KEY_INFO *PKCS8_set_broken(PKCS8_PRIV_KEY_INFO *p8, int broken)
149 : {
150 0 : switch (broken) {
151 :
152 : case PKCS8_OK:
153 0 : p8->broken = PKCS8_OK;
154 0 : return p8;
155 : break;
156 :
157 : case PKCS8_NO_OCTET:
158 0 : p8->broken = PKCS8_NO_OCTET;
159 0 : p8->pkey->type = V_ASN1_SEQUENCE;
160 0 : return p8;
161 : break;
162 :
163 : default:
164 0 : EVPerr(EVP_F_PKCS8_SET_BROKEN, EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);
165 0 : return NULL;
166 : }
167 : }
168 :
169 : /* EVP_PKEY attribute functions */
170 :
171 0 : int EVP_PKEY_get_attr_count(const EVP_PKEY *key)
172 : {
173 0 : return X509at_get_attr_count(key->attributes);
174 : }
175 :
176 0 : int EVP_PKEY_get_attr_by_NID(const EVP_PKEY *key, int nid, int lastpos)
177 : {
178 0 : return X509at_get_attr_by_NID(key->attributes, nid, lastpos);
179 : }
180 :
181 0 : int EVP_PKEY_get_attr_by_OBJ(const EVP_PKEY *key, ASN1_OBJECT *obj,
182 : int lastpos)
183 : {
184 0 : return X509at_get_attr_by_OBJ(key->attributes, obj, lastpos);
185 : }
186 :
187 0 : X509_ATTRIBUTE *EVP_PKEY_get_attr(const EVP_PKEY *key, int loc)
188 : {
189 0 : return X509at_get_attr(key->attributes, loc);
190 : }
191 :
192 0 : X509_ATTRIBUTE *EVP_PKEY_delete_attr(EVP_PKEY *key, int loc)
193 : {
194 0 : return X509at_delete_attr(key->attributes, loc);
195 : }
196 :
197 0 : int EVP_PKEY_add1_attr(EVP_PKEY *key, X509_ATTRIBUTE *attr)
198 : {
199 0 : if (X509at_add1_attr(&key->attributes, attr))
200 : return 1;
201 0 : return 0;
202 : }
203 :
204 0 : int EVP_PKEY_add1_attr_by_OBJ(EVP_PKEY *key,
205 : const ASN1_OBJECT *obj, int type,
206 : const unsigned char *bytes, int len)
207 : {
208 0 : if (X509at_add1_attr_by_OBJ(&key->attributes, obj, type, bytes, len))
209 : return 1;
210 0 : return 0;
211 : }
212 :
213 0 : int EVP_PKEY_add1_attr_by_NID(EVP_PKEY *key,
214 : int nid, int type,
215 : const unsigned char *bytes, int len)
216 : {
217 0 : if (X509at_add1_attr_by_NID(&key->attributes, nid, type, bytes, len))
218 : return 1;
219 0 : return 0;
220 : }
221 :
222 0 : int EVP_PKEY_add1_attr_by_txt(EVP_PKEY *key,
223 : const char *attrname, int type,
224 : const unsigned char *bytes, int len)
225 : {
226 0 : if (X509at_add1_attr_by_txt(&key->attributes, attrname, type, bytes, len))
227 : return 1;
228 0 : return 0;
229 : }
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