2 * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 #include "internal/cryptlib.h"
12 #include <openssl/bn.h>
13 #include <openssl/evp.h>
14 #include <openssl/asn1.h>
15 #include <openssl/asn1t.h>
16 #include <openssl/x509.h>
17 #include "crypto/x509.h"
18 #include <openssl/objects.h>
19 #include <openssl/buffer.h>
20 #include <openssl/pem.h>
22 X509_REQ *X509_to_X509_REQ(X509 *x, EVP_PKEY *pkey, const EVP_MD *md)
29 ret = X509_REQ_new_ex(x->libctx, x->propq);
31 ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
37 ri->version->length = 1;
38 ri->version->data = OPENSSL_malloc(1);
39 if (ri->version->data == NULL)
41 ri->version->data[0] = 0; /* version == 0 */
43 if (!X509_REQ_set_subject_name(ret, X509_get_subject_name(x)))
46 pktmp = X509_get0_pubkey(x);
49 i = X509_REQ_set_pubkey(ret, pktmp);
54 if (!X509_REQ_sign(ret, pkey, md))
63 EVP_PKEY *X509_REQ_get_pubkey(X509_REQ *req)
67 return X509_PUBKEY_get(req->req_info.pubkey);
70 EVP_PKEY *X509_REQ_get0_pubkey(X509_REQ *req)
74 return X509_PUBKEY_get0(req->req_info.pubkey);
77 X509_PUBKEY *X509_REQ_get_X509_PUBKEY(X509_REQ *req)
79 return req->req_info.pubkey;
82 int X509_REQ_check_private_key(X509_REQ *x, EVP_PKEY *k)
87 xk = X509_REQ_get_pubkey(x);
88 switch (EVP_PKEY_eq(xk, k)) {
93 ERR_raise(ERR_LIB_X509, X509_R_KEY_VALUES_MISMATCH);
96 ERR_raise(ERR_LIB_X509, X509_R_KEY_TYPE_MISMATCH);
99 ERR_raise(ERR_LIB_X509, X509_R_UNKNOWN_KEY_TYPE);
107 * It seems several organisations had the same idea of including a list of
108 * extensions in a certificate request. There are at least two OIDs that are
109 * used and there may be more: so the list is configurable.
112 static int ext_nid_list[] = { NID_ext_req, NID_ms_ext_req, NID_undef };
114 static int *ext_nids = ext_nid_list;
116 int X509_REQ_extension_nid(int req_nid)
122 if (nid == NID_undef)
124 else if (req_nid == nid)
129 int *X509_REQ_get_extension_nids(void)
134 void X509_REQ_set_extension_nids(int *nids)
139 STACK_OF(X509_EXTENSION) *X509_REQ_get_extensions(X509_REQ *req)
141 X509_ATTRIBUTE *attr;
142 ASN1_TYPE *ext = NULL;
144 const unsigned char *p;
146 if (req == NULL || !ext_nids)
148 for (pnid = ext_nids; *pnid != NID_undef; pnid++) {
149 idx = X509_REQ_get_attr_by_NID(req, *pnid, -1);
152 attr = X509_REQ_get_attr(req, idx);
153 ext = X509_ATTRIBUTE_get0_type(attr, 0);
156 if (ext == NULL) /* no extensions is not an error */
157 return sk_X509_EXTENSION_new_null();
158 if (ext->type != V_ASN1_SEQUENCE)
160 p = ext->value.sequence->data;
161 return (STACK_OF(X509_EXTENSION) *)
162 ASN1_item_d2i(NULL, &p, ext->value.sequence->length,
163 ASN1_ITEM_rptr(X509_EXTENSIONS));
167 * Add a STACK_OF extensions to a certificate request: allow alternative OIDs
168 * in case we want to create a non standard one.
170 int X509_REQ_add_extensions_nid(X509_REQ *req,
171 const STACK_OF(X509_EXTENSION) *exts, int nid)
175 unsigned char *ext = NULL;
177 /* Generate encoding of extensions */
178 extlen = ASN1_item_i2d((const ASN1_VALUE *)exts, &ext,
179 ASN1_ITEM_rptr(X509_EXTENSIONS));
182 rv = X509_REQ_add1_attr_by_NID(req, nid, V_ASN1_SEQUENCE, ext, extlen);
187 /* This is the normal usage: use the "official" OID */
188 int X509_REQ_add_extensions(X509_REQ *req, const STACK_OF(X509_EXTENSION) *exts)
190 return X509_REQ_add_extensions_nid(req, exts, NID_ext_req);
193 /* Request attribute functions */
195 int X509_REQ_get_attr_count(const X509_REQ *req)
197 return X509at_get_attr_count(req->req_info.attributes);
200 int X509_REQ_get_attr_by_NID(const X509_REQ *req, int nid, int lastpos)
202 return X509at_get_attr_by_NID(req->req_info.attributes, nid, lastpos);
205 int X509_REQ_get_attr_by_OBJ(const X509_REQ *req, const ASN1_OBJECT *obj,
208 return X509at_get_attr_by_OBJ(req->req_info.attributes, obj, lastpos);
211 X509_ATTRIBUTE *X509_REQ_get_attr(const X509_REQ *req, int loc)
213 return X509at_get_attr(req->req_info.attributes, loc);
216 X509_ATTRIBUTE *X509_REQ_delete_attr(X509_REQ *req, int loc)
218 X509_ATTRIBUTE *attr;
221 ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
224 attr = X509at_delete_attr(req->req_info.attributes, loc);
226 req->req_info.enc.modified = 1;
230 int X509_REQ_add1_attr(X509_REQ *req, X509_ATTRIBUTE *attr)
233 ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
236 if (!X509at_add1_attr(&req->req_info.attributes, attr))
238 req->req_info.enc.modified = 1;
242 int X509_REQ_add1_attr_by_OBJ(X509_REQ *req,
243 const ASN1_OBJECT *obj, int type,
244 const unsigned char *bytes, int len)
247 ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
250 if (!X509at_add1_attr_by_OBJ(&req->req_info.attributes, obj,
253 req->req_info.enc.modified = 1;
257 int X509_REQ_add1_attr_by_NID(X509_REQ *req,
259 const unsigned char *bytes, int len)
262 ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
265 if (!X509at_add1_attr_by_NID(&req->req_info.attributes, nid,
268 req->req_info.enc.modified = 1;
272 int X509_REQ_add1_attr_by_txt(X509_REQ *req,
273 const char *attrname, int type,
274 const unsigned char *bytes, int len)
277 ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
280 if (!X509at_add1_attr_by_txt(&req->req_info.attributes, attrname,
283 req->req_info.enc.modified = 1;
287 long X509_REQ_get_version(const X509_REQ *req)
289 return ASN1_INTEGER_get(req->req_info.version);
292 X509_NAME *X509_REQ_get_subject_name(const X509_REQ *req)
294 return req->req_info.subject;
297 void X509_REQ_get0_signature(const X509_REQ *req, const ASN1_BIT_STRING **psig,
298 const X509_ALGOR **palg)
301 *psig = req->signature;
303 *palg = &req->sig_alg;
306 void X509_REQ_set0_signature(X509_REQ *req, ASN1_BIT_STRING *psig)
309 ASN1_BIT_STRING_free(req->signature);
310 req->signature = psig;
313 int X509_REQ_set1_signature_algo(X509_REQ *req, X509_ALGOR *palg)
315 return X509_ALGOR_copy(&req->sig_alg, palg);
318 int X509_REQ_get_signature_nid(const X509_REQ *req)
320 return OBJ_obj2nid(req->sig_alg.algorithm);
323 int i2d_re_X509_REQ_tbs(X509_REQ *req, unsigned char **pp)
326 ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
329 req->req_info.enc.modified = 1;
330 return i2d_X509_REQ_INFO(&req->req_info, pp);