1 /* $OpenBSD: x509_req.c,v 1.21 2018/05/13 06:48:00 tb Exp $ */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
61 #include <openssl/opensslconf.h>
63 #include <openssl/asn1.h>
64 #include <openssl/asn1t.h>
65 #include <openssl/bn.h>
66 #include <openssl/buffer.h>
67 #include <openssl/err.h>
68 #include <openssl/evp.h>
69 #include <openssl/objects.h>
70 #include <openssl/pem.h>
71 #include <openssl/x509.h>
74 X509_to_X509_REQ(X509 *x, EVP_PKEY *pkey, const EVP_MD *md)
83 X509error(ERR_R_MALLOC_FAILURE);
89 if ((ri->version = ASN1_INTEGER_new()) == NULL)
91 if (ASN1_INTEGER_set(ri->version, 0) == 0)
94 if (!X509_REQ_set_subject_name(ret, X509_get_subject_name(x)))
97 if ((pktmp = X509_get_pubkey(x)) == NULL)
100 i = X509_REQ_set_pubkey(ret, pktmp);
101 EVP_PKEY_free(pktmp);
106 if (!X509_REQ_sign(ret, pkey, md))
117 X509_REQ_get_pubkey(X509_REQ *req)
119 if ((req == NULL) || (req->req_info == NULL))
121 return (X509_PUBKEY_get(req->req_info->pubkey));
125 X509_REQ_check_private_key(X509_REQ *x, EVP_PKEY *k)
130 xk = X509_REQ_get_pubkey(x);
131 switch (EVP_PKEY_cmp(xk, k)) {
136 X509error(X509_R_KEY_VALUES_MISMATCH);
139 X509error(X509_R_KEY_TYPE_MISMATCH);
142 #ifndef OPENSSL_NO_EC
143 if (k->type == EVP_PKEY_EC) {
144 X509error(ERR_R_EC_LIB);
148 #ifndef OPENSSL_NO_DH
149 if (k->type == EVP_PKEY_DH) {
151 X509error(X509_R_CANT_CHECK_DH_KEY);
155 X509error(X509_R_UNKNOWN_KEY_TYPE);
162 /* It seems several organisations had the same idea of including a list of
163 * extensions in a certificate request. There are at least two OIDs that are
164 * used and there may be more: so the list is configurable.
167 static int ext_nid_list[] = {NID_ext_req, NID_ms_ext_req, NID_undef};
169 static int *ext_nids = ext_nid_list;
172 X509_REQ_extension_nid(int req_nid)
178 if (nid == NID_undef)
180 else if (req_nid == nid)
186 X509_REQ_get_extension_nids(void)
192 X509_REQ_set_extension_nids(int *nids)
197 STACK_OF(X509_EXTENSION) *
198 X509_REQ_get_extensions(X509_REQ *req)
200 X509_ATTRIBUTE *attr;
201 ASN1_TYPE *ext = NULL;
203 const unsigned char *p;
205 if ((req == NULL) || (req->req_info == NULL) || !ext_nids)
207 for (pnid = ext_nids; *pnid != NID_undef; pnid++) {
208 idx = X509_REQ_get_attr_by_NID(req, *pnid, -1);
211 attr = X509_REQ_get_attr(req, idx);
213 ext = attr->value.single;
214 else if (sk_ASN1_TYPE_num(attr->value.set))
215 ext = sk_ASN1_TYPE_value(attr->value.set, 0);
218 if (!ext || (ext->type != V_ASN1_SEQUENCE))
220 p = ext->value.sequence->data;
221 return (STACK_OF(X509_EXTENSION) *)ASN1_item_d2i(NULL, &p,
222 ext->value.sequence->length, &X509_EXTENSIONS_it);
225 /* Add a STACK_OF extensions to a certificate request: allow alternative OIDs
226 * in case we want to create a non standard one.
230 X509_REQ_add_extensions_nid(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts,
233 ASN1_TYPE *at = NULL;
234 X509_ATTRIBUTE *attr = NULL;
236 if (!(at = ASN1_TYPE_new()) ||
237 !(at->value.sequence = ASN1_STRING_new()))
240 at->type = V_ASN1_SEQUENCE;
241 /* Generate encoding of extensions */
242 at->value.sequence->length = ASN1_item_i2d((ASN1_VALUE *)exts,
243 &at->value.sequence->data, &X509_EXTENSIONS_it);
244 if (!(attr = X509_ATTRIBUTE_new()))
246 if (!(attr->value.set = sk_ASN1_TYPE_new_null()))
248 if (!sk_ASN1_TYPE_push(attr->value.set, at))
252 attr->object = OBJ_nid2obj(nid);
253 if (!req->req_info->attributes) {
254 if (!(req->req_info->attributes = sk_X509_ATTRIBUTE_new_null()))
257 if (!sk_X509_ATTRIBUTE_push(req->req_info->attributes, attr))
262 X509_ATTRIBUTE_free(attr);
267 /* This is the normal usage: use the "official" OID */
269 X509_REQ_add_extensions(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts)
271 return X509_REQ_add_extensions_nid(req, exts, NID_ext_req);
274 /* Request attribute functions */
277 X509_REQ_get_attr_count(const X509_REQ *req)
279 return X509at_get_attr_count(req->req_info->attributes);
283 X509_REQ_get_attr_by_NID(const X509_REQ *req, int nid, int lastpos)
285 return X509at_get_attr_by_NID(req->req_info->attributes, nid, lastpos);
289 X509_REQ_get_attr_by_OBJ(const X509_REQ *req, const ASN1_OBJECT *obj,
292 return X509at_get_attr_by_OBJ(req->req_info->attributes, obj, lastpos);
296 X509_REQ_get_attr(const X509_REQ *req, int loc)
298 return X509at_get_attr(req->req_info->attributes, loc);
302 X509_REQ_delete_attr(X509_REQ *req, int loc)
304 return X509at_delete_attr(req->req_info->attributes, loc);
308 X509_REQ_add1_attr(X509_REQ *req, X509_ATTRIBUTE *attr)
310 if (X509at_add1_attr(&req->req_info->attributes, attr))
316 X509_REQ_add1_attr_by_OBJ(X509_REQ *req, const ASN1_OBJECT *obj, int type,
317 const unsigned char *bytes, int len)
319 if (X509at_add1_attr_by_OBJ(&req->req_info->attributes, obj,
326 X509_REQ_add1_attr_by_NID(X509_REQ *req, int nid, int type,
327 const unsigned char *bytes, int len)
329 if (X509at_add1_attr_by_NID(&req->req_info->attributes, nid,
336 X509_REQ_add1_attr_by_txt(X509_REQ *req, const char *attrname, int type,
337 const unsigned char *bytes, int len)
339 if (X509at_add1_attr_by_txt(&req->req_info->attributes, attrname,