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7bf7a6d0 MTL |
1 | /* |
2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. | |
b6f94dbe | 3 | * |
7bf7a6d0 MTL |
4 | * Licensed under the OpenSSL license (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 | |
3e575651 SL |
8 | */ |
9 | ||
10 | #include <stdio.h> | |
7bf7a6d0 | 11 | #include "internal/cryptlib.h" |
3e575651 SL |
12 | #include <openssl/bn.h> |
13 | #include <openssl/evp.h> | |
14 | #include <openssl/asn1.h> | |
d3819813 | 15 | #include <openssl/asn1t.h> |
3e575651 | 16 | #include <openssl/x509.h> |
7bf7a6d0 | 17 | #include "internal/x509_int.h" |
3e575651 SL |
18 | #include <openssl/objects.h> |
19 | #include <openssl/buffer.h> | |
20 | #include <openssl/pem.h> | |
21 | ||
22 | X509_REQ *X509_to_X509_REQ(X509 *x, EVP_PKEY *pkey, const EVP_MD *md) | |
d3819813 MTL |
23 | { |
24 | X509_REQ *ret; | |
25 | X509_REQ_INFO *ri; | |
26 | int i; | |
27 | EVP_PKEY *pktmp; | |
28 | ||
29 | ret = X509_REQ_new(); | |
30 | if (ret == NULL) { | |
31 | X509err(X509_F_X509_TO_X509_REQ, ERR_R_MALLOC_FAILURE); | |
32 | goto err; | |
33 | } | |
34 | ||
7bf7a6d0 | 35 | ri = &ret->req_info; |
d3819813 MTL |
36 | |
37 | ri->version->length = 1; | |
7bf7a6d0 | 38 | ri->version->data = OPENSSL_malloc(1); |
d3819813 MTL |
39 | if (ri->version->data == NULL) |
40 | goto err; | |
41 | ri->version->data[0] = 0; /* version == 0 */ | |
42 | ||
43 | if (!X509_REQ_set_subject_name(ret, X509_get_subject_name(x))) | |
44 | goto err; | |
45 | ||
7bf7a6d0 | 46 | pktmp = X509_get0_pubkey(x); |
d3819813 MTL |
47 | if (pktmp == NULL) |
48 | goto err; | |
49 | i = X509_REQ_set_pubkey(ret, pktmp); | |
d3819813 MTL |
50 | if (!i) |
51 | goto err; | |
52 | ||
53 | if (pkey != NULL) { | |
54 | if (!X509_REQ_sign(ret, pkey, md)) | |
55 | goto err; | |
56 | } | |
57 | return (ret); | |
58 | err: | |
59 | X509_REQ_free(ret); | |
60 | return (NULL); | |
61 | } | |
3e575651 SL |
62 | |
63 | EVP_PKEY *X509_REQ_get_pubkey(X509_REQ *req) | |
d3819813 | 64 | { |
7bf7a6d0 | 65 | if (req == NULL) |
d3819813 | 66 | return (NULL); |
7bf7a6d0 MTL |
67 | return (X509_PUBKEY_get(req->req_info.pubkey)); |
68 | } | |
69 | ||
70 | EVP_PKEY *X509_REQ_get0_pubkey(X509_REQ *req) | |
71 | { | |
72 | if (req == NULL) | |
73 | return NULL; | |
74 | return (X509_PUBKEY_get0(req->req_info.pubkey)); | |
75 | } | |
76 | ||
77 | X509_PUBKEY *X509_REQ_get_X509_PUBKEY(X509_REQ *req) | |
78 | { | |
79 | return req->req_info.pubkey; | |
d3819813 | 80 | } |
3e575651 SL |
81 | |
82 | int X509_REQ_check_private_key(X509_REQ *x, EVP_PKEY *k) | |
d3819813 MTL |
83 | { |
84 | EVP_PKEY *xk = NULL; | |
85 | int ok = 0; | |
86 | ||
87 | xk = X509_REQ_get_pubkey(x); | |
88 | switch (EVP_PKEY_cmp(xk, k)) { | |
89 | case 1: | |
90 | ok = 1; | |
91 | break; | |
92 | case 0: | |
93 | X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, | |
94 | X509_R_KEY_VALUES_MISMATCH); | |
95 | break; | |
96 | case -1: | |
97 | X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, X509_R_KEY_TYPE_MISMATCH); | |
98 | break; | |
99 | case -2: | |
3e575651 | 100 | #ifndef OPENSSL_NO_EC |
7bf7a6d0 | 101 | if (EVP_PKEY_id(k) == EVP_PKEY_EC) { |
d3819813 MTL |
102 | X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, ERR_R_EC_LIB); |
103 | break; | |
104 | } | |
3e575651 SL |
105 | #endif |
106 | #ifndef OPENSSL_NO_DH | |
7bf7a6d0 | 107 | if (EVP_PKEY_id(k) == EVP_PKEY_DH) { |
d3819813 MTL |
108 | /* No idea */ |
109 | X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, | |
110 | X509_R_CANT_CHECK_DH_KEY); | |
111 | break; | |
112 | } | |
3e575651 | 113 | #endif |
d3819813 MTL |
114 | X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, X509_R_UNKNOWN_KEY_TYPE); |
115 | } | |
3e575651 | 116 | |
d3819813 MTL |
117 | EVP_PKEY_free(xk); |
118 | return (ok); | |
119 | } | |
3e575651 | 120 | |
d3819813 MTL |
121 | /* |
122 | * It seems several organisations had the same idea of including a list of | |
3e575651 SL |
123 | * extensions in a certificate request. There are at least two OIDs that are |
124 | * used and there may be more: so the list is configurable. | |
125 | */ | |
126 | ||
d3819813 | 127 | static int ext_nid_list[] = { NID_ext_req, NID_ms_ext_req, NID_undef }; |
3e575651 SL |
128 | |
129 | static int *ext_nids = ext_nid_list; | |
130 | ||
131 | int X509_REQ_extension_nid(int req_nid) | |
132 | { | |
d3819813 MTL |
133 | int i, nid; |
134 | for (i = 0;; i++) { | |
135 | nid = ext_nids[i]; | |
136 | if (nid == NID_undef) | |
137 | return 0; | |
138 | else if (req_nid == nid) | |
139 | return 1; | |
140 | } | |
3e575651 SL |
141 | } |
142 | ||
143 | int *X509_REQ_get_extension_nids(void) | |
144 | { | |
d3819813 | 145 | return ext_nids; |
3e575651 | 146 | } |
d3819813 | 147 | |
3e575651 SL |
148 | void X509_REQ_set_extension_nids(int *nids) |
149 | { | |
d3819813 | 150 | ext_nids = nids; |
3e575651 SL |
151 | } |
152 | ||
153 | STACK_OF(X509_EXTENSION) *X509_REQ_get_extensions(X509_REQ *req) | |
d3819813 MTL |
154 | { |
155 | X509_ATTRIBUTE *attr; | |
156 | ASN1_TYPE *ext = NULL; | |
157 | int idx, *pnid; | |
158 | const unsigned char *p; | |
159 | ||
7bf7a6d0 | 160 | if ((req == NULL) || !ext_nids) |
d3819813 MTL |
161 | return (NULL); |
162 | for (pnid = ext_nids; *pnid != NID_undef; pnid++) { | |
163 | idx = X509_REQ_get_attr_by_NID(req, *pnid, -1); | |
164 | if (idx == -1) | |
165 | continue; | |
166 | attr = X509_REQ_get_attr(req, idx); | |
7bf7a6d0 | 167 | ext = X509_ATTRIBUTE_get0_type(attr, 0); |
d3819813 MTL |
168 | break; |
169 | } | |
170 | if (!ext || (ext->type != V_ASN1_SEQUENCE)) | |
171 | return NULL; | |
172 | p = ext->value.sequence->data; | |
173 | return (STACK_OF(X509_EXTENSION) *) | |
174 | ASN1_item_d2i(NULL, &p, ext->value.sequence->length, | |
175 | ASN1_ITEM_rptr(X509_EXTENSIONS)); | |
3e575651 SL |
176 | } |
177 | ||
d3819813 MTL |
178 | /* |
179 | * Add a STACK_OF extensions to a certificate request: allow alternative OIDs | |
3e575651 SL |
180 | * in case we want to create a non standard one. |
181 | */ | |
182 | ||
183 | int X509_REQ_add_extensions_nid(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts, | |
d3819813 | 184 | int nid) |
3e575651 | 185 | { |
7bf7a6d0 MTL |
186 | int extlen; |
187 | int rv = 0; | |
188 | unsigned char *ext = NULL; | |
d3819813 | 189 | /* Generate encoding of extensions */ |
7bf7a6d0 MTL |
190 | extlen = ASN1_item_i2d((ASN1_VALUE *)exts, &ext, |
191 | ASN1_ITEM_rptr(X509_EXTENSIONS)); | |
192 | if (extlen <= 0) | |
193 | return 0; | |
194 | rv = X509_REQ_add1_attr_by_NID(req, nid, V_ASN1_SEQUENCE, ext, extlen); | |
195 | OPENSSL_free(ext); | |
196 | return rv; | |
3e575651 | 197 | } |
d3819813 | 198 | |
3e575651 SL |
199 | /* This is the normal usage: use the "official" OID */ |
200 | int X509_REQ_add_extensions(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts) | |
201 | { | |
d3819813 | 202 | return X509_REQ_add_extensions_nid(req, exts, NID_ext_req); |
3e575651 SL |
203 | } |
204 | ||
205 | /* Request attribute functions */ | |
206 | ||
207 | int X509_REQ_get_attr_count(const X509_REQ *req) | |
208 | { | |
7bf7a6d0 | 209 | return X509at_get_attr_count(req->req_info.attributes); |
3e575651 SL |
210 | } |
211 | ||
d3819813 | 212 | int X509_REQ_get_attr_by_NID(const X509_REQ *req, int nid, int lastpos) |
3e575651 | 213 | { |
7bf7a6d0 | 214 | return X509at_get_attr_by_NID(req->req_info.attributes, nid, lastpos); |
3e575651 SL |
215 | } |
216 | ||
7bf7a6d0 | 217 | int X509_REQ_get_attr_by_OBJ(const X509_REQ *req, const ASN1_OBJECT *obj, |
d3819813 | 218 | int lastpos) |
3e575651 | 219 | { |
7bf7a6d0 | 220 | return X509at_get_attr_by_OBJ(req->req_info.attributes, obj, lastpos); |
3e575651 SL |
221 | } |
222 | ||
223 | X509_ATTRIBUTE *X509_REQ_get_attr(const X509_REQ *req, int loc) | |
224 | { | |
7bf7a6d0 | 225 | return X509at_get_attr(req->req_info.attributes, loc); |
3e575651 SL |
226 | } |
227 | ||
228 | X509_ATTRIBUTE *X509_REQ_delete_attr(X509_REQ *req, int loc) | |
229 | { | |
7bf7a6d0 | 230 | return X509at_delete_attr(req->req_info.attributes, loc); |
3e575651 SL |
231 | } |
232 | ||
233 | int X509_REQ_add1_attr(X509_REQ *req, X509_ATTRIBUTE *attr) | |
234 | { | |
7bf7a6d0 | 235 | if (X509at_add1_attr(&req->req_info.attributes, attr)) |
d3819813 MTL |
236 | return 1; |
237 | return 0; | |
3e575651 SL |
238 | } |
239 | ||
240 | int X509_REQ_add1_attr_by_OBJ(X509_REQ *req, | |
d3819813 MTL |
241 | const ASN1_OBJECT *obj, int type, |
242 | const unsigned char *bytes, int len) | |
3e575651 | 243 | { |
7bf7a6d0 | 244 | if (X509at_add1_attr_by_OBJ(&req->req_info.attributes, obj, |
d3819813 MTL |
245 | type, bytes, len)) |
246 | return 1; | |
247 | return 0; | |
3e575651 SL |
248 | } |
249 | ||
250 | int X509_REQ_add1_attr_by_NID(X509_REQ *req, | |
d3819813 MTL |
251 | int nid, int type, |
252 | const unsigned char *bytes, int len) | |
3e575651 | 253 | { |
7bf7a6d0 | 254 | if (X509at_add1_attr_by_NID(&req->req_info.attributes, nid, |
d3819813 MTL |
255 | type, bytes, len)) |
256 | return 1; | |
257 | return 0; | |
3e575651 SL |
258 | } |
259 | ||
260 | int X509_REQ_add1_attr_by_txt(X509_REQ *req, | |
d3819813 MTL |
261 | const char *attrname, int type, |
262 | const unsigned char *bytes, int len) | |
3e575651 | 263 | { |
7bf7a6d0 | 264 | if (X509at_add1_attr_by_txt(&req->req_info.attributes, attrname, |
d3819813 MTL |
265 | type, bytes, len)) |
266 | return 1; | |
267 | return 0; | |
3e575651 | 268 | } |
7bf7a6d0 MTL |
269 | |
270 | long X509_REQ_get_version(const X509_REQ *req) | |
271 | { | |
272 | return ASN1_INTEGER_get(req->req_info.version); | |
273 | } | |
274 | ||
275 | X509_NAME *X509_REQ_get_subject_name(const X509_REQ *req) | |
276 | { | |
277 | return req->req_info.subject; | |
278 | } | |
279 | ||
280 | void X509_REQ_get0_signature(const X509_REQ *req, const ASN1_BIT_STRING **psig, | |
281 | const X509_ALGOR **palg) | |
282 | { | |
283 | if (psig != NULL) | |
284 | *psig = req->signature; | |
285 | if (palg != NULL) | |
286 | *palg = &req->sig_alg; | |
287 | } | |
288 | ||
289 | int X509_REQ_get_signature_nid(const X509_REQ *req) | |
290 | { | |
291 | return OBJ_obj2nid(req->sig_alg.algorithm); | |
292 | } | |
293 | ||
294 | int i2d_re_X509_REQ_tbs(X509_REQ *req, unsigned char **pp) | |
295 | { | |
296 | req->req_info.enc.modified = 1; | |
297 | return i2d_X509_REQ_INFO(&req->req_info, pp); | |
298 | } |