Line data Source code
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 0 : 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 0 : ret = X509_REQ_new();
78 0 : if (ret == NULL) {
79 0 : X509err(X509_F_X509_TO_X509_REQ, ERR_R_MALLOC_FAILURE);
80 0 : goto err;
81 : }
82 :
83 0 : ri = ret->req_info;
84 :
85 0 : ri->version->length = 1;
86 0 : ri->version->data = (unsigned char *)OPENSSL_malloc(1);
87 0 : if (ri->version->data == NULL)
88 : goto err;
89 0 : ri->version->data[0] = 0; /* version == 0 */
90 :
91 0 : if (!X509_REQ_set_subject_name(ret, X509_get_subject_name(x)))
92 : goto err;
93 :
94 0 : pktmp = X509_get_pubkey(x);
95 0 : if (pktmp == NULL)
96 : goto err;
97 0 : i = X509_REQ_set_pubkey(ret, pktmp);
98 0 : EVP_PKEY_free(pktmp);
99 0 : if (!i)
100 : goto err;
101 :
102 0 : if (pkey != NULL) {
103 0 : if (!X509_REQ_sign(ret, pkey, md))
104 : goto err;
105 : }
106 0 : return (ret);
107 : err:
108 0 : X509_REQ_free(ret);
109 0 : return (NULL);
110 : }
111 :
112 0 : EVP_PKEY *X509_REQ_get_pubkey(X509_REQ *req)
113 : {
114 0 : if ((req == NULL) || (req->req_info == NULL))
115 : return (NULL);
116 0 : return (X509_PUBKEY_get(req->req_info->pubkey));
117 : }
118 :
119 0 : int X509_REQ_check_private_key(X509_REQ *x, EVP_PKEY *k)
120 : {
121 : EVP_PKEY *xk = NULL;
122 : int ok = 0;
123 :
124 0 : xk = X509_REQ_get_pubkey(x);
125 0 : switch (EVP_PKEY_cmp(xk, k)) {
126 : case 1:
127 : ok = 1;
128 0 : break;
129 : case 0:
130 0 : X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,
131 : X509_R_KEY_VALUES_MISMATCH);
132 0 : break;
133 : case -1:
134 0 : X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, X509_R_KEY_TYPE_MISMATCH);
135 0 : break;
136 : case -2:
137 : #ifndef OPENSSL_NO_EC
138 0 : if (k->type == EVP_PKEY_EC) {
139 0 : X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, ERR_R_EC_LIB);
140 0 : break;
141 : }
142 : #endif
143 : #ifndef OPENSSL_NO_DH
144 0 : if (k->type == EVP_PKEY_DH) {
145 : /* No idea */
146 0 : X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,
147 : X509_R_CANT_CHECK_DH_KEY);
148 0 : break;
149 : }
150 : #endif
151 0 : X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, X509_R_UNKNOWN_KEY_TYPE);
152 : }
153 :
154 0 : EVP_PKEY_free(xk);
155 0 : return (ok);
156 : }
157 :
158 : /*
159 : * It seems several organisations had the same idea of including a list of
160 : * extensions in a certificate request. There are at least two OIDs that are
161 : * used and there may be more: so the list is configurable.
162 : */
163 :
164 : static int ext_nid_list[] = { NID_ext_req, NID_ms_ext_req, NID_undef };
165 :
166 : static int *ext_nids = ext_nid_list;
167 :
168 0 : int X509_REQ_extension_nid(int req_nid)
169 : {
170 : int i, nid;
171 0 : for (i = 0;; i++) {
172 0 : nid = ext_nids[i];
173 0 : if (nid == NID_undef)
174 : return 0;
175 0 : else if (req_nid == nid)
176 : return 1;
177 0 : }
178 : }
179 :
180 0 : int *X509_REQ_get_extension_nids(void)
181 : {
182 0 : return ext_nids;
183 : }
184 :
185 0 : void X509_REQ_set_extension_nids(int *nids)
186 : {
187 0 : ext_nids = nids;
188 0 : }
189 :
190 0 : STACK_OF(X509_EXTENSION) *X509_REQ_get_extensions(X509_REQ *req)
191 : {
192 : X509_ATTRIBUTE *attr;
193 : ASN1_TYPE *ext = NULL;
194 : int idx, *pnid;
195 : const unsigned char *p;
196 :
197 0 : if ((req == NULL) || (req->req_info == NULL) || !ext_nids)
198 : return (NULL);
199 0 : for (pnid = ext_nids; *pnid != NID_undef; pnid++) {
200 : idx = X509_REQ_get_attr_by_NID(req, *pnid, -1);
201 0 : if (idx == -1)
202 0 : continue;
203 : attr = X509_REQ_get_attr(req, idx);
204 0 : if (attr->single)
205 0 : ext = attr->value.single;
206 0 : else if (sk_ASN1_TYPE_num(attr->value.set))
207 0 : ext = sk_ASN1_TYPE_value(attr->value.set, 0);
208 : break;
209 : }
210 0 : if (!ext || (ext->type != V_ASN1_SEQUENCE))
211 : return NULL;
212 0 : p = ext->value.sequence->data;
213 0 : return (STACK_OF(X509_EXTENSION) *)
214 0 : ASN1_item_d2i(NULL, &p, ext->value.sequence->length,
215 : ASN1_ITEM_rptr(X509_EXTENSIONS));
216 : }
217 :
218 : /*
219 : * Add a STACK_OF extensions to a certificate request: allow alternative OIDs
220 : * in case we want to create a non standard one.
221 : */
222 :
223 0 : int X509_REQ_add_extensions_nid(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts,
224 : int nid)
225 : {
226 : ASN1_TYPE *at = NULL;
227 : X509_ATTRIBUTE *attr = NULL;
228 0 : if (!(at = ASN1_TYPE_new()) || !(at->value.sequence = ASN1_STRING_new()))
229 : goto err;
230 :
231 0 : at->type = V_ASN1_SEQUENCE;
232 : /* Generate encoding of extensions */
233 0 : at->value.sequence->length =
234 0 : ASN1_item_i2d((ASN1_VALUE *)exts,
235 : &at->value.sequence->data,
236 : ASN1_ITEM_rptr(X509_EXTENSIONS));
237 0 : if (!(attr = X509_ATTRIBUTE_new()))
238 : goto err;
239 0 : if (!(attr->value.set = sk_ASN1_TYPE_new_null()))
240 : goto err;
241 0 : if (!sk_ASN1_TYPE_push(attr->value.set, at))
242 : goto err;
243 : at = NULL;
244 0 : attr->single = 0;
245 0 : attr->object = OBJ_nid2obj(nid);
246 0 : if (!req->req_info->attributes) {
247 0 : if (!(req->req_info->attributes = sk_X509_ATTRIBUTE_new_null()))
248 : goto err;
249 : }
250 0 : if (!sk_X509_ATTRIBUTE_push(req->req_info->attributes, attr))
251 : goto err;
252 : return 1;
253 : err:
254 0 : X509_ATTRIBUTE_free(attr);
255 0 : ASN1_TYPE_free(at);
256 0 : return 0;
257 : }
258 :
259 : /* This is the normal usage: use the "official" OID */
260 0 : int X509_REQ_add_extensions(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts)
261 : {
262 0 : return X509_REQ_add_extensions_nid(req, exts, NID_ext_req);
263 : }
264 :
265 : /* Request attribute functions */
266 :
267 0 : int X509_REQ_get_attr_count(const X509_REQ *req)
268 : {
269 0 : return X509at_get_attr_count(req->req_info->attributes);
270 : }
271 :
272 0 : int X509_REQ_get_attr_by_NID(const X509_REQ *req, int nid, int lastpos)
273 : {
274 0 : return X509at_get_attr_by_NID(req->req_info->attributes, nid, lastpos);
275 : }
276 :
277 0 : int X509_REQ_get_attr_by_OBJ(const X509_REQ *req, ASN1_OBJECT *obj,
278 : int lastpos)
279 : {
280 0 : return X509at_get_attr_by_OBJ(req->req_info->attributes, obj, lastpos);
281 : }
282 :
283 0 : X509_ATTRIBUTE *X509_REQ_get_attr(const X509_REQ *req, int loc)
284 : {
285 0 : return X509at_get_attr(req->req_info->attributes, loc);
286 : }
287 :
288 0 : X509_ATTRIBUTE *X509_REQ_delete_attr(X509_REQ *req, int loc)
289 : {
290 0 : return X509at_delete_attr(req->req_info->attributes, loc);
291 : }
292 :
293 0 : int X509_REQ_add1_attr(X509_REQ *req, X509_ATTRIBUTE *attr)
294 : {
295 0 : if (X509at_add1_attr(&req->req_info->attributes, attr))
296 : return 1;
297 0 : return 0;
298 : }
299 :
300 0 : int X509_REQ_add1_attr_by_OBJ(X509_REQ *req,
301 : const ASN1_OBJECT *obj, int type,
302 : const unsigned char *bytes, int len)
303 : {
304 0 : if (X509at_add1_attr_by_OBJ(&req->req_info->attributes, obj,
305 : type, bytes, len))
306 : return 1;
307 0 : return 0;
308 : }
309 :
310 0 : int X509_REQ_add1_attr_by_NID(X509_REQ *req,
311 : int nid, int type,
312 : const unsigned char *bytes, int len)
313 : {
314 0 : if (X509at_add1_attr_by_NID(&req->req_info->attributes, nid,
315 : type, bytes, len))
316 : return 1;
317 0 : return 0;
318 : }
319 :
320 0 : int X509_REQ_add1_attr_by_txt(X509_REQ *req,
321 : const char *attrname, int type,
322 : const unsigned char *bytes, int len)
323 : {
324 0 : if (X509at_add1_attr_by_txt(&req->req_info->attributes, attrname,
325 : type, bytes, len))
326 : return 1;
327 0 : return 0;
328 : }
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