Branch data 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 : 1 : 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 : 1 : ret=X509_REQ_new();
78 [ - + ]: 1 : if (ret == NULL)
79 : : {
80 : 0 : X509err(X509_F_X509_TO_X509_REQ,ERR_R_MALLOC_FAILURE);
81 : 0 : goto err;
82 : : }
83 : :
84 : 1 : ri=ret->req_info;
85 : :
86 : 1 : ri->version->length=1;
87 : 1 : ri->version->data=(unsigned char *)OPENSSL_malloc(1);
88 [ + - ]: 1 : if (ri->version->data == NULL) goto err;
89 : 1 : ri->version->data[0]=0; /* version == 0 */
90 : :
91 [ + - ]: 1 : if (!X509_REQ_set_subject_name(ret,X509_get_subject_name(x)))
92 : : goto err;
93 : :
94 : 1 : pktmp = X509_get_pubkey(x);
95 : 1 : i=X509_REQ_set_pubkey(ret,pktmp);
96 : 1 : EVP_PKEY_free(pktmp);
97 [ + - ]: 1 : if (!i) goto err;
98 : :
99 [ + - ]: 1 : if (pkey != NULL)
100 : : {
101 [ + - ]: 1 : if (!X509_REQ_sign(ret,pkey,md))
102 : : goto err;
103 : : }
104 : 1 : return(ret);
105 : : err:
106 : 0 : X509_REQ_free(ret);
107 : 0 : return(NULL);
108 : : }
109 : :
110 : 28 : EVP_PKEY *X509_REQ_get_pubkey(X509_REQ *req)
111 : : {
112 [ + - ][ + - ]: 28 : if ((req == NULL) || (req->req_info == NULL))
113 : : return(NULL);
114 : 28 : return(X509_PUBKEY_get(req->req_info->pubkey));
115 : : }
116 : :
117 : 1 : int X509_REQ_check_private_key(X509_REQ *x, EVP_PKEY *k)
118 : : {
119 : 1 : EVP_PKEY *xk=NULL;
120 : 1 : int ok=0;
121 : :
122 : 1 : xk=X509_REQ_get_pubkey(x);
123 [ + - - - : 1 : switch (EVP_PKEY_cmp(xk, k))
- ]
124 : : {
125 : : case 1:
126 : 1 : ok=1;
127 : 1 : break;
128 : : case 0:
129 : 0 : X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_KEY_VALUES_MISMATCH);
130 : 0 : break;
131 : : case -1:
132 : 0 : X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_KEY_TYPE_MISMATCH);
133 : 0 : break;
134 : : case -2:
135 : : #ifndef OPENSSL_NO_EC
136 [ # # ]: 0 : if (k->type == EVP_PKEY_EC)
137 : : {
138 : 0 : X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, ERR_R_EC_LIB);
139 : 0 : break;
140 : : }
141 : : #endif
142 : : #ifndef OPENSSL_NO_DH
143 [ # # ]: 0 : if (k->type == EVP_PKEY_DH)
144 : : {
145 : : /* No idea */
146 : 0 : X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_CANT_CHECK_DH_KEY);
147 : 0 : break;
148 : : }
149 : : #endif
150 : 0 : X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_UNKNOWN_KEY_TYPE);
151 : : }
152 : :
153 : 1 : EVP_PKEY_free(xk);
154 : 1 : 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 : 1 : int X509_REQ_extension_nid(int req_nid)
167 : : {
168 : : int i, nid;
169 : 1 : for(i = 0; ; i++) {
170 : 2 : nid = ext_nids[i];
171 [ + - ]: 2 : if(nid == NID_undef) return 0;
172 [ + + ]: 2 : else if (req_nid == nid) return 1;
173 : 1 : }
174 : : }
175 : :
176 : 0 : int *X509_REQ_get_extension_nids(void)
177 : : {
178 : 0 : return ext_nids;
179 : : }
180 : :
181 : 0 : void X509_REQ_set_extension_nids(int *nids)
182 : : {
183 : 0 : ext_nids = nids;
184 : 0 : }
185 : :
186 : 3 : STACK_OF(X509_EXTENSION) *X509_REQ_get_extensions(X509_REQ *req)
187 : : {
188 : : X509_ATTRIBUTE *attr;
189 : 3 : ASN1_TYPE *ext = NULL;
190 : : int idx, *pnid;
191 : : const unsigned char *p;
192 : :
193 [ + - ][ + - ]: 3 : if ((req == NULL) || (req->req_info == NULL) || !ext_nids)
[ + - ]
194 : : return(NULL);
195 [ + + ]: 8 : for (pnid = ext_nids; *pnid != NID_undef; pnid++)
196 : : {
197 : 6 : idx = X509_REQ_get_attr_by_NID(req, *pnid, -1);
198 [ + + ]: 6 : if (idx == -1)
199 : 5 : continue;
200 : 1 : attr = X509_REQ_get_attr(req, idx);
201 [ - + ]: 1 : if(attr->single) ext = attr->value.single;
202 [ + - ]: 1 : else if(sk_ASN1_TYPE_num(attr->value.set))
203 : 1 : ext = sk_ASN1_TYPE_value(attr->value.set, 0);
204 : : break;
205 : : }
206 [ + + ][ + - ]: 3 : if(!ext || (ext->type != V_ASN1_SEQUENCE))
207 : : return NULL;
208 : 1 : p = ext->value.sequence->data;
209 : 1 : return (STACK_OF(X509_EXTENSION) *)
210 : 1 : 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 : 0 : int X509_REQ_add_extensions_nid(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts,
219 : : int nid)
220 : : {
221 : 0 : ASN1_TYPE *at = NULL;
222 : 0 : X509_ATTRIBUTE *attr = NULL;
223 [ # # # # ]: 0 : if(!(at = ASN1_TYPE_new()) ||
224 : 0 : !(at->value.sequence = ASN1_STRING_new())) goto err;
225 : :
226 : 0 : at->type = V_ASN1_SEQUENCE;
227 : : /* Generate encoding of extensions */
228 : 0 : at->value.sequence->length =
229 : 0 : ASN1_item_i2d((ASN1_VALUE *)exts,
230 : : &at->value.sequence->data,
231 : : ASN1_ITEM_rptr(X509_EXTENSIONS));
232 [ # # ]: 0 : if(!(attr = X509_ATTRIBUTE_new())) goto err;
233 [ # # ]: 0 : if(!(attr->value.set = sk_ASN1_TYPE_new_null())) goto err;
234 [ # # ]: 0 : if(!sk_ASN1_TYPE_push(attr->value.set, at)) goto err;
235 : 0 : at = NULL;
236 : 0 : attr->single = 0;
237 : 0 : attr->object = OBJ_nid2obj(nid);
238 [ # # ]: 0 : if (!req->req_info->attributes)
239 : : {
240 [ # # ]: 0 : if (!(req->req_info->attributes = sk_X509_ATTRIBUTE_new_null()))
241 : : goto err;
242 : : }
243 [ # # ]: 0 : if(!sk_X509_ATTRIBUTE_push(req->req_info->attributes, attr)) goto err;
244 : : return 1;
245 : : err:
246 : 0 : X509_ATTRIBUTE_free(attr);
247 : 0 : ASN1_TYPE_free(at);
248 : 0 : return 0;
249 : : }
250 : : /* This is the normal usage: use the "official" OID */
251 : 0 : int X509_REQ_add_extensions(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts)
252 : : {
253 : 0 : return X509_REQ_add_extensions_nid(req, exts, NID_ext_req);
254 : : }
255 : :
256 : : /* Request attribute functions */
257 : :
258 : 0 : int X509_REQ_get_attr_count(const X509_REQ *req)
259 : : {
260 : 0 : return X509at_get_attr_count(req->req_info->attributes);
261 : : }
262 : :
263 : 6 : int X509_REQ_get_attr_by_NID(const X509_REQ *req, int nid,
264 : : int lastpos)
265 : : {
266 : 6 : return X509at_get_attr_by_NID(req->req_info->attributes, nid, lastpos);
267 : : }
268 : :
269 : 0 : int X509_REQ_get_attr_by_OBJ(const X509_REQ *req, ASN1_OBJECT *obj,
270 : : int lastpos)
271 : : {
272 : 0 : return X509at_get_attr_by_OBJ(req->req_info->attributes, obj, lastpos);
273 : : }
274 : :
275 : 1 : X509_ATTRIBUTE *X509_REQ_get_attr(const X509_REQ *req, int loc)
276 : : {
277 : 1 : return X509at_get_attr(req->req_info->attributes, loc);
278 : : }
279 : :
280 : 0 : X509_ATTRIBUTE *X509_REQ_delete_attr(X509_REQ *req, int loc)
281 : : {
282 : 0 : return X509at_delete_attr(req->req_info->attributes, loc);
283 : : }
284 : :
285 : 0 : int X509_REQ_add1_attr(X509_REQ *req, X509_ATTRIBUTE *attr)
286 : : {
287 [ # # ]: 0 : if(X509at_add1_attr(&req->req_info->attributes, attr)) return 1;
288 : 0 : return 0;
289 : : }
290 : :
291 : 0 : 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 [ # # ]: 0 : if(X509at_add1_attr_by_OBJ(&req->req_info->attributes, obj,
296 : : type, bytes, len)) return 1;
297 : 0 : return 0;
298 : : }
299 : :
300 : 0 : int X509_REQ_add1_attr_by_NID(X509_REQ *req,
301 : : int nid, int type,
302 : : const unsigned char *bytes, int len)
303 : : {
304 [ # # ]: 0 : if(X509at_add1_attr_by_NID(&req->req_info->attributes, nid,
305 : : type, bytes, len)) return 1;
306 : 0 : return 0;
307 : : }
308 : :
309 : 0 : 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 [ # # ]: 0 : if(X509at_add1_attr_by_txt(&req->req_info->attributes, attrname,
314 : : type, bytes, len)) return 1;
315 : 0 : return 0;
316 : : }
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