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1 /* crypto/x509/x509_req.c */ | |
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
3 * All rights reserved. | |
4 * | |
5 * This package is an SSL implementation written | |
6 * by Eric Young (eay@cryptsoft.com). | |
7 * The implementation was written so as to conform with Netscapes SSL. | |
8 * | |
9 * This library is free for commercial and non-commercial use as long as | |
10 * the following conditions are aheared to. The following conditions | |
11 * apply to all code found in this distribution, be it the RC4, RSA, | |
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
13 * included with this distribution is covered by the same copyright terms | |
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
15 * | |
16 * Copyright remains Eric Young's, and as such any Copyright notices in | |
17 * the code are not to be removed. | |
18 * If this package is used in a product, Eric Young should be given attribution | |
19 * as the author of the parts of the library used. | |
20 * This can be in the form of a textual message at program startup or | |
21 * in documentation (online or textual) provided with the package. | |
22 * | |
23 * Redistribution and use in source and binary forms, with or without | |
24 * modification, are permitted provided that the following conditions | |
25 * are met: | |
26 * 1. Redistributions of source code must retain the copyright | |
27 * notice, this list of conditions and the following disclaimer. | |
28 * 2. Redistributions in binary form must reproduce the above copyright | |
29 * notice, this list of conditions and the following disclaimer in the | |
30 * documentation and/or other materials provided with the distribution. | |
31 * 3. All advertising materials mentioning features or use of this software | |
32 * must display the following acknowledgement: | |
33 * "This product includes cryptographic software written by | |
34 * Eric Young (eay@cryptsoft.com)" | |
35 * The word 'cryptographic' can be left out if the rouines from the library | |
36 * being used are not cryptographic related :-). | |
37 * 4. If you include any Windows specific code (or a derivative thereof) from | |
38 * the apps directory (application code) you must include an acknowledgement: | |
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
40 * | |
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | |
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
51 * SUCH DAMAGE. | |
52 * | |
53 * The licence and distribution terms for any publically available version or | |
54 * derivative of this code cannot be changed. i.e. this code cannot simply be | |
55 * copied and put under another distribution licence | |
56 * [including the GNU Public Licence.] | |
57 */ | |
58 | |
59 #include <stdio.h> | |
60 #include "cryptlib.h" | |
61 #include <openssl/bn.h> | |
62 #include <openssl/evp.h> | |
63 #include <openssl/asn1.h> | |
64 #include <openssl/asn1t.h> | |
65 #include <openssl/x509.h> | |
66 #include <openssl/objects.h> | |
67 #include <openssl/buffer.h> | |
68 #include <openssl/pem.h> | |
69 | |
70 X509_REQ *X509_to_X509_REQ(X509 *x, EVP_PKEY *pkey, const EVP_MD *md) | |
71 { | |
72 X509_REQ *ret; | |
73 X509_REQ_INFO *ri; | |
74 int i; | |
75 EVP_PKEY *pktmp; | |
76 | |
77 ret=X509_REQ_new(); | |
78 if (ret == NULL) | |
79 { | |
80 X509err(X509_F_X509_TO_X509_REQ,ERR_R_MALLOC_FAILURE); | |
81 goto err; | |
82 } | |
83 | |
84 ri=ret->req_info; | |
85 | |
86 ri->version->length=1; | |
87 ri->version->data=(unsigned char *)OPENSSL_malloc(1); | |
88 if (ri->version->data == NULL) goto err; | |
89 ri->version->data[0]=0; /* version == 0 */ | |
90 | |
91 if (!X509_REQ_set_subject_name(ret,X509_get_subject_name(x))) | |
92 goto err; | |
93 | |
94 pktmp = X509_get_pubkey(x); | |
95 i=X509_REQ_set_pubkey(ret,pktmp); | |
96 EVP_PKEY_free(pktmp); | |
97 if (!i) goto err; | |
98 | |
99 if (pkey != NULL) | |
100 { | |
101 if (!X509_REQ_sign(ret,pkey,md)) | |
102 goto err; | |
103 } | |
104 return(ret); | |
105 err: | |
106 X509_REQ_free(ret); | |
107 return(NULL); | |
108 } | |
109 | |
110 EVP_PKEY *X509_REQ_get_pubkey(X509_REQ *req) | |
111 { | |
112 if ((req == NULL) || (req->req_info == NULL)) | |
113 return(NULL); | |
114 return(X509_PUBKEY_get(req->req_info->pubkey)); | |
115 } | |
116 | |
117 int X509_REQ_check_private_key(X509_REQ *x, EVP_PKEY *k) | |
118 { | |
119 EVP_PKEY *xk=NULL; | |
120 int ok=0; | |
121 | |
122 xk=X509_REQ_get_pubkey(x); | |
123 switch (EVP_PKEY_cmp(xk, k)) | |
124 { | |
125 case 1: | |
126 ok=1; | |
127 break; | |
128 case 0: | |
129 X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_KEY_VALUES_MISM
ATCH); | |
130 break; | |
131 case -1: | |
132 X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_KEY_TYPE_MISMAT
CH); | |
133 break; | |
134 case -2: | |
135 #ifndef OPENSSL_NO_EC | |
136 if (k->type == EVP_PKEY_EC) | |
137 { | |
138 X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, ERR_R_EC_LIB)
; | |
139 break; | |
140 } | |
141 #endif | |
142 #ifndef OPENSSL_NO_DH | |
143 if (k->type == EVP_PKEY_DH) | |
144 { | |
145 /* No idea */ | |
146 X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_CANT_CH
ECK_DH_KEY); | |
147 break; | |
148 } | |
149 #endif | |
150 X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_UNKNOWN_KEY_TYP
E); | |
151 } | |
152 | |
153 EVP_PKEY_free(xk); | |
154 return(ok); | |
155 } | |
156 | |
157 /* It seems several organisations had the same idea of including a list of | |
158 * extensions in a certificate request. There are at least two OIDs that are | |
159 * used and there may be more: so the list is configurable. | |
160 */ | |
161 | |
162 static int ext_nid_list[] = { NID_ext_req, NID_ms_ext_req, NID_undef}; | |
163 | |
164 static int *ext_nids = ext_nid_list; | |
165 | |
166 int X509_REQ_extension_nid(int req_nid) | |
167 { | |
168 int i, nid; | |
169 for(i = 0; ; i++) { | |
170 nid = ext_nids[i]; | |
171 if(nid == NID_undef) return 0; | |
172 else if (req_nid == nid) return 1; | |
173 } | |
174 } | |
175 | |
176 int *X509_REQ_get_extension_nids(void) | |
177 { | |
178 return ext_nids; | |
179 } | |
180 | |
181 void X509_REQ_set_extension_nids(int *nids) | |
182 { | |
183 ext_nids = nids; | |
184 } | |
185 | |
186 STACK_OF(X509_EXTENSION) *X509_REQ_get_extensions(X509_REQ *req) | |
187 { | |
188 X509_ATTRIBUTE *attr; | |
189 ASN1_TYPE *ext = NULL; | |
190 int idx, *pnid; | |
191 const unsigned char *p; | |
192 | |
193 if ((req == NULL) || (req->req_info == NULL) || !ext_nids) | |
194 return(NULL); | |
195 for (pnid = ext_nids; *pnid != NID_undef; pnid++) | |
196 { | |
197 idx = X509_REQ_get_attr_by_NID(req, *pnid, -1); | |
198 if (idx == -1) | |
199 continue; | |
200 attr = X509_REQ_get_attr(req, idx); | |
201 if(attr->single) ext = attr->value.single; | |
202 else if(sk_ASN1_TYPE_num(attr->value.set)) | |
203 ext = sk_ASN1_TYPE_value(attr->value.set, 0); | |
204 break; | |
205 } | |
206 if(!ext || (ext->type != V_ASN1_SEQUENCE)) | |
207 return NULL; | |
208 p = ext->value.sequence->data; | |
209 return (STACK_OF(X509_EXTENSION) *) | |
210 ASN1_item_d2i(NULL, &p, ext->value.sequence->length, | |
211 ASN1_ITEM_rptr(X509_EXTENSIONS)); | |
212 } | |
213 | |
214 /* Add a STACK_OF extensions to a certificate request: allow alternative OIDs | |
215 * in case we want to create a non standard one. | |
216 */ | |
217 | |
218 int X509_REQ_add_extensions_nid(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts, | |
219 int nid) | |
220 { | |
221 ASN1_TYPE *at = NULL; | |
222 X509_ATTRIBUTE *attr = NULL; | |
223 if(!(at = ASN1_TYPE_new()) || | |
224 !(at->value.sequence = ASN1_STRING_new())) goto err; | |
225 | |
226 at->type = V_ASN1_SEQUENCE; | |
227 /* Generate encoding of extensions */ | |
228 at->value.sequence->length = | |
229 ASN1_item_i2d((ASN1_VALUE *)exts, | |
230 &at->value.sequence->data, | |
231 ASN1_ITEM_rptr(X509_EXTENSIONS)); | |
232 if(!(attr = X509_ATTRIBUTE_new())) goto err; | |
233 if(!(attr->value.set = sk_ASN1_TYPE_new_null())) goto err; | |
234 if(!sk_ASN1_TYPE_push(attr->value.set, at)) goto err; | |
235 at = NULL; | |
236 attr->single = 0; | |
237 attr->object = OBJ_nid2obj(nid); | |
238 if (!req->req_info->attributes) | |
239 { | |
240 if (!(req->req_info->attributes = sk_X509_ATTRIBUTE_new_null())) | |
241 goto err; | |
242 } | |
243 if(!sk_X509_ATTRIBUTE_push(req->req_info->attributes, attr)) goto err; | |
244 return 1; | |
245 err: | |
246 X509_ATTRIBUTE_free(attr); | |
247 ASN1_TYPE_free(at); | |
248 return 0; | |
249 } | |
250 /* This is the normal usage: use the "official" OID */ | |
251 int X509_REQ_add_extensions(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts) | |
252 { | |
253 return X509_REQ_add_extensions_nid(req, exts, NID_ext_req); | |
254 } | |
255 | |
256 /* Request attribute functions */ | |
257 | |
258 int X509_REQ_get_attr_count(const X509_REQ *req) | |
259 { | |
260 return X509at_get_attr_count(req->req_info->attributes); | |
261 } | |
262 | |
263 int X509_REQ_get_attr_by_NID(const X509_REQ *req, int nid, | |
264 int lastpos) | |
265 { | |
266 return X509at_get_attr_by_NID(req->req_info->attributes, nid, lastpos); | |
267 } | |
268 | |
269 int X509_REQ_get_attr_by_OBJ(const X509_REQ *req, ASN1_OBJECT *obj, | |
270 int lastpos) | |
271 { | |
272 return X509at_get_attr_by_OBJ(req->req_info->attributes, obj, lastpos); | |
273 } | |
274 | |
275 X509_ATTRIBUTE *X509_REQ_get_attr(const X509_REQ *req, int loc) | |
276 { | |
277 return X509at_get_attr(req->req_info->attributes, loc); | |
278 } | |
279 | |
280 X509_ATTRIBUTE *X509_REQ_delete_attr(X509_REQ *req, int loc) | |
281 { | |
282 return X509at_delete_attr(req->req_info->attributes, loc); | |
283 } | |
284 | |
285 int X509_REQ_add1_attr(X509_REQ *req, X509_ATTRIBUTE *attr) | |
286 { | |
287 if(X509at_add1_attr(&req->req_info->attributes, attr)) return 1; | |
288 return 0; | |
289 } | |
290 | |
291 int X509_REQ_add1_attr_by_OBJ(X509_REQ *req, | |
292 const ASN1_OBJECT *obj, int type, | |
293 const unsigned char *bytes, int len) | |
294 { | |
295 if(X509at_add1_attr_by_OBJ(&req->req_info->attributes, obj, | |
296 type, bytes, len)) return 1; | |
297 return 0; | |
298 } | |
299 | |
300 int X509_REQ_add1_attr_by_NID(X509_REQ *req, | |
301 int nid, int type, | |
302 const unsigned char *bytes, int len) | |
303 { | |
304 if(X509at_add1_attr_by_NID(&req->req_info->attributes, nid, | |
305 type, bytes, len)) return 1; | |
306 return 0; | |
307 } | |
308 | |
309 int X509_REQ_add1_attr_by_txt(X509_REQ *req, | |
310 const char *attrname, int type, | |
311 const unsigned char *bytes, int len) | |
312 { | |
313 if(X509at_add1_attr_by_txt(&req->req_info->attributes, attrname, | |
314 type, bytes, len)) return 1; | |
315 return 0; | |
316 } | |
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