evp/e_aes_cbc_hmac_sha256.c: enable is on all AES-NI platforms, not only on AVX.
[openssl.git] / crypto / evp / evp_pkey.c
1 /* evp_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 <stdlib.h>
61 #include "cryptlib.h"
62 #include <openssl/x509.h>
63 #include <openssl/rand.h>
64 #include "asn1_locl.h"
65
66 /* Extract a private key from a PKCS8 structure */
67
68 EVP_PKEY *EVP_PKCS82PKEY(PKCS8_PRIV_KEY_INFO *p8)
69 {
70         EVP_PKEY *pkey = NULL;
71         ASN1_OBJECT *algoid;
72         char obj_tmp[80];
73
74         if (!PKCS8_pkey_get0(&algoid, NULL, NULL, NULL, p8))
75                 return NULL;
76
77         if (!(pkey = EVP_PKEY_new())) {
78                 EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
79                 return NULL;
80         }
81
82         if (!EVP_PKEY_set_type(pkey, OBJ_obj2nid(algoid)))
83                 {
84                 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
85                 i2t_ASN1_OBJECT(obj_tmp, 80, algoid);
86                 ERR_add_error_data(2, "TYPE=", obj_tmp);
87                 goto error;
88                 }
89
90         if (pkey->ameth->priv_decode)
91                 {
92                 if (!pkey->ameth->priv_decode(pkey, p8))
93                         {
94                         EVPerr(EVP_F_EVP_PKCS82PKEY,
95                                         EVP_R_PRIVATE_KEY_DECODE_ERROR);
96                         goto error;
97                         }
98                 }
99         else
100                 {
101                 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_METHOD_NOT_SUPPORTED);
102                 goto error;
103                 }
104
105         return pkey;
106
107         error:
108         EVP_PKEY_free (pkey);
109         return NULL;
110 }
111
112 PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(EVP_PKEY *pkey)
113 {
114         return EVP_PKEY2PKCS8_broken(pkey, PKCS8_OK);
115 }
116
117 /* Turn a private key into a PKCS8 structure */
118
119 PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8_broken(EVP_PKEY *pkey, int broken)
120 {
121         PKCS8_PRIV_KEY_INFO *p8;
122
123         if (!(p8 = PKCS8_PRIV_KEY_INFO_new())) {        
124                 EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN,ERR_R_MALLOC_FAILURE);
125                 return NULL;
126         }
127         p8->broken = broken;
128
129         if (pkey->ameth)
130                 {
131                 if (pkey->ameth->priv_encode)
132                         {
133                         if (!pkey->ameth->priv_encode(p8, pkey))
134                                 {
135                                 EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN,
136                                         EVP_R_PRIVATE_KEY_ENCODE_ERROR);
137                                 goto error;
138                                 }
139                         }
140                 else
141                         {
142                         EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN,
143                                         EVP_R_METHOD_NOT_SUPPORTED);
144                         goto error;
145                         }
146                 }
147         else
148                 {
149                 EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN,
150                                 EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
151                 goto error;
152                 }
153         RAND_add(p8->pkey->value.octet_string->data,
154                  p8->pkey->value.octet_string->length, 0.0);
155         return p8;
156         error:
157         PKCS8_PRIV_KEY_INFO_free(p8);
158         return NULL;
159 }
160
161 PKCS8_PRIV_KEY_INFO *PKCS8_set_broken(PKCS8_PRIV_KEY_INFO *p8, int broken)
162 {
163         switch (broken) {
164
165                 case PKCS8_OK:
166                 p8->broken = PKCS8_OK;
167                 return p8;
168                 break;
169
170                 case PKCS8_NO_OCTET:
171                 p8->broken = PKCS8_NO_OCTET;
172                 p8->pkey->type = V_ASN1_SEQUENCE;
173                 return p8;
174                 break;
175
176                 default:
177                 EVPerr(EVP_F_PKCS8_SET_BROKEN,EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);
178                 return NULL;
179         }
180 }
181
182 /* EVP_PKEY attribute functions */
183
184 int EVP_PKEY_get_attr_count(const EVP_PKEY *key)
185 {
186         return X509at_get_attr_count(key->attributes);
187 }
188
189 int EVP_PKEY_get_attr_by_NID(const EVP_PKEY *key, int nid,
190                           int lastpos)
191 {
192         return X509at_get_attr_by_NID(key->attributes, nid, lastpos);
193 }
194
195 int EVP_PKEY_get_attr_by_OBJ(const EVP_PKEY *key, ASN1_OBJECT *obj,
196                           int lastpos)
197 {
198         return X509at_get_attr_by_OBJ(key->attributes, obj, lastpos);
199 }
200
201 X509_ATTRIBUTE *EVP_PKEY_get_attr(const EVP_PKEY *key, int loc)
202 {
203         return X509at_get_attr(key->attributes, loc);
204 }
205
206 X509_ATTRIBUTE *EVP_PKEY_delete_attr(EVP_PKEY *key, int loc)
207 {
208         return X509at_delete_attr(key->attributes, loc);
209 }
210
211 int EVP_PKEY_add1_attr(EVP_PKEY *key, X509_ATTRIBUTE *attr)
212 {
213         if(X509at_add1_attr(&key->attributes, attr)) return 1;
214         return 0;
215 }
216
217 int EVP_PKEY_add1_attr_by_OBJ(EVP_PKEY *key,
218                         const ASN1_OBJECT *obj, int type,
219                         const unsigned char *bytes, int len)
220 {
221         if(X509at_add1_attr_by_OBJ(&key->attributes, obj,
222                                 type, bytes, len)) return 1;
223         return 0;
224 }
225
226 int EVP_PKEY_add1_attr_by_NID(EVP_PKEY *key,
227                         int nid, int type,
228                         const unsigned char *bytes, int len)
229 {
230         if(X509at_add1_attr_by_NID(&key->attributes, nid,
231                                 type, bytes, len)) return 1;
232         return 0;
233 }
234
235 int EVP_PKEY_add1_attr_by_txt(EVP_PKEY *key,
236                         const char *attrname, int type,
237                         const unsigned char *bytes, int len)
238 {
239         if(X509at_add1_attr_by_txt(&key->attributes, attrname,
240                                 type, bytes, len)) return 1;
241         return 0;
242 }