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cfcefcbe DSH |
1 | /* evp_pkey.c */ |
2 | /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL | |
3 | * project 1999. | |
4 | */ | |
5 | /* ==================================================================== | |
448be743 | 6 | * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved. |
cfcefcbe DSH |
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" | |
ec577822 BM |
62 | #include <openssl/x509.h> |
63 | #include <openssl/rand.h> | |
3eeaab4b | 64 | #ifndef OPENSSL_NO_RSA |
60a938c6 | 65 | #include <openssl/rsa.h> |
3eeaab4b NL |
66 | #endif |
67 | #ifndef OPENSSL_NO_DSA | |
60a938c6 | 68 | #include <openssl/dsa.h> |
3eeaab4b | 69 | #endif |
0f814687 | 70 | #include <openssl/bn.h> |
cfcefcbe DSH |
71 | |
72 | /* Extract a private key from a PKCS8 structure */ | |
73 | ||
8afca8d9 | 74 | EVP_PKEY *EVP_PKCS82PKEY(PKCS8_PRIV_KEY_INFO *p8) |
cfcefcbe | 75 | { |
66430207 | 76 | EVP_PKEY *pkey = NULL; |
448be743 DSH |
77 | ASN1_OBJECT *algoid; |
78 | const EVP_PKEY_ASN1_METHOD *meth; | |
cfcefcbe DSH |
79 | char obj_tmp[80]; |
80 | ||
448be743 DSH |
81 | if (!PKCS8_pkey_get0(&algoid, NULL, NULL, NULL, p8)) |
82 | return NULL; | |
83 | ||
cfcefcbe DSH |
84 | if (!(pkey = EVP_PKEY_new())) { |
85 | EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE); | |
86 | return NULL; | |
87 | } | |
4d94ae00 | 88 | |
448be743 | 89 | meth = EVP_PKEY_ASN1_find(OBJ_obj2nid(algoid)); |
8ee4845b | 90 | |
448be743 | 91 | if (meth) |
8ee4845b | 92 | { |
448be743 | 93 | if (meth->priv_decode) |
4d94ae00 | 94 | { |
448be743 DSH |
95 | if (!meth->priv_decode(pkey, p8)) |
96 | { | |
8ee4845b | 97 | EVPerr(EVP_F_EVP_PKCS82PKEY, |
448be743 DSH |
98 | EVP_R_PRIVATE_KEY_DECODE_ERROR); |
99 | goto error; | |
100 | } | |
4d94ae00 | 101 | } |
8ee4845b | 102 | else |
4d94ae00 | 103 | { |
448be743 DSH |
104 | EVPerr(EVP_F_EVP_PKCS82PKEY, |
105 | EVP_R_METHOD_NOT_SUPPORTED); | |
106 | goto error; | |
4d94ae00 | 107 | } |
8ee4845b | 108 | } |
448be743 | 109 | else |
8ee4845b | 110 | { |
cfcefcbe | 111 | EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM); |
448be743 | 112 | i2t_ASN1_OBJECT(obj_tmp, 80, algoid); |
cfcefcbe | 113 | ERR_add_error_data(2, "TYPE=", obj_tmp); |
448be743 DSH |
114 | goto error; |
115 | } | |
cfcefcbe | 116 | return pkey; |
448be743 DSH |
117 | |
118 | error: | |
119 | EVP_PKEY_free (pkey); | |
120 | return NULL; | |
cfcefcbe DSH |
121 | } |
122 | ||
66430207 DSH |
123 | PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(EVP_PKEY *pkey) |
124 | { | |
125 | return EVP_PKEY2PKCS8_broken(pkey, PKCS8_OK); | |
126 | } | |
127 | ||
cfcefcbe DSH |
128 | /* Turn a private key into a PKCS8 structure */ |
129 | ||
66430207 | 130 | PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8_broken(EVP_PKEY *pkey, int broken) |
cfcefcbe DSH |
131 | { |
132 | PKCS8_PRIV_KEY_INFO *p8; | |
448be743 | 133 | const EVP_PKEY_ASN1_METHOD *meth; |
66430207 | 134 | |
cfcefcbe | 135 | if (!(p8 = PKCS8_PRIV_KEY_INFO_new())) { |
8afca8d9 | 136 | EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN,ERR_R_MALLOC_FAILURE); |
cfcefcbe DSH |
137 | return NULL; |
138 | } | |
66430207 | 139 | p8->broken = broken; |
cfcefcbe | 140 | |
448be743 | 141 | meth = EVP_PKEY_ASN1_find(pkey->type); |
66430207 | 142 | |
448be743 DSH |
143 | if (meth) |
144 | { | |
145 | if (meth->priv_encode) | |
146 | { | |
147 | if (!meth->priv_encode(p8, pkey)) | |
148 | { | |
149 | EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN, | |
150 | EVP_R_PRIVATE_KEY_ENCODE_ERROR); | |
151 | goto error; | |
152 | } | |
153 | } | |
154 | else | |
155 | { | |
156 | EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN, | |
157 | EVP_R_METHOD_NOT_SUPPORTED); | |
158 | goto error; | |
159 | } | |
cfcefcbe | 160 | } |
448be743 | 161 | else |
4d94ae00 | 162 | { |
448be743 DSH |
163 | EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN, |
164 | EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM); | |
165 | goto error; | |
4d94ae00 | 166 | } |
eb952088 | 167 | RAND_add(p8->pkey->value.octet_string->data, |
875a644a | 168 | p8->pkey->value.octet_string->length, 0.0); |
cfcefcbe | 169 | return p8; |
448be743 DSH |
170 | error: |
171 | PKCS8_PRIV_KEY_INFO_free(p8); | |
172 | return NULL; | |
cfcefcbe DSH |
173 | } |
174 | ||
6b691a5c | 175 | PKCS8_PRIV_KEY_INFO *PKCS8_set_broken(PKCS8_PRIV_KEY_INFO *p8, int broken) |
cfcefcbe DSH |
176 | { |
177 | switch (broken) { | |
178 | ||
179 | case PKCS8_OK: | |
180 | p8->broken = PKCS8_OK; | |
181 | return p8; | |
182 | break; | |
183 | ||
184 | case PKCS8_NO_OCTET: | |
185 | p8->broken = PKCS8_NO_OCTET; | |
186 | p8->pkey->type = V_ASN1_SEQUENCE; | |
187 | return p8; | |
188 | break; | |
189 | ||
190 | default: | |
8afca8d9 | 191 | EVPerr(EVP_F_PKCS8_SET_BROKEN,EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE); |
cfcefcbe | 192 | return NULL; |
cfcefcbe DSH |
193 | } |
194 | } | |
195 | ||
b6995add DSH |
196 | /* EVP_PKEY attribute functions */ |
197 | ||
198 | int EVP_PKEY_get_attr_count(const EVP_PKEY *key) | |
199 | { | |
200 | return X509at_get_attr_count(key->attributes); | |
201 | } | |
202 | ||
203 | int EVP_PKEY_get_attr_by_NID(const EVP_PKEY *key, int nid, | |
204 | int lastpos) | |
205 | { | |
206 | return X509at_get_attr_by_NID(key->attributes, nid, lastpos); | |
207 | } | |
208 | ||
209 | int EVP_PKEY_get_attr_by_OBJ(const EVP_PKEY *key, ASN1_OBJECT *obj, | |
210 | int lastpos) | |
211 | { | |
212 | return X509at_get_attr_by_OBJ(key->attributes, obj, lastpos); | |
213 | } | |
214 | ||
215 | X509_ATTRIBUTE *EVP_PKEY_get_attr(const EVP_PKEY *key, int loc) | |
216 | { | |
217 | return X509at_get_attr(key->attributes, loc); | |
218 | } | |
219 | ||
220 | X509_ATTRIBUTE *EVP_PKEY_delete_attr(EVP_PKEY *key, int loc) | |
221 | { | |
222 | return X509at_delete_attr(key->attributes, loc); | |
223 | } | |
224 | ||
225 | int EVP_PKEY_add1_attr(EVP_PKEY *key, X509_ATTRIBUTE *attr) | |
226 | { | |
227 | if(X509at_add1_attr(&key->attributes, attr)) return 1; | |
228 | return 0; | |
229 | } | |
230 | ||
231 | int EVP_PKEY_add1_attr_by_OBJ(EVP_PKEY *key, | |
232 | const ASN1_OBJECT *obj, int type, | |
233 | const unsigned char *bytes, int len) | |
234 | { | |
235 | if(X509at_add1_attr_by_OBJ(&key->attributes, obj, | |
236 | type, bytes, len)) return 1; | |
237 | return 0; | |
238 | } | |
239 | ||
240 | int EVP_PKEY_add1_attr_by_NID(EVP_PKEY *key, | |
241 | int nid, int type, | |
242 | const unsigned char *bytes, int len) | |
243 | { | |
244 | if(X509at_add1_attr_by_NID(&key->attributes, nid, | |
245 | type, bytes, len)) return 1; | |
246 | return 0; | |
247 | } | |
248 | ||
249 | int EVP_PKEY_add1_attr_by_txt(EVP_PKEY *key, | |
250 | const char *attrname, int type, | |
251 | const unsigned char *bytes, int len) | |
252 | { | |
253 | if(X509at_add1_attr_by_txt(&key->attributes, attrname, | |
254 | type, bytes, len)) return 1; | |
255 | return 0; | |
256 | } |