1 /* $OpenBSD: p12_crt.c,v 1.26 2024/08/22 12:22:42 tb Exp $ */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project.
4 */
5 /* ====================================================================
6 * Copyright (c) 1999-2002 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 *
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
56 *
57 */
58
59 #include <stdio.h>
60
61 #include <openssl/err.h>
62 #include <openssl/pkcs12.h>
63 #include <openssl/x509.h>
64
65 #include "evp_local.h"
66 #include "pkcs12_local.h"
67 #include "x509_local.h"
68
69 static int pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags,
70 PKCS12_SAFEBAG *bag);
71
72 PKCS12 *
PKCS12_create(const char * pass,const char * name,EVP_PKEY * pkey,X509 * cert,STACK_OF (X509)* ca,int nid_key,int nid_cert,int iter,int mac_iter,int keytype)73 PKCS12_create(const char *pass, const char *name, EVP_PKEY *pkey, X509 *cert,
74 STACK_OF(X509) *ca, int nid_key, int nid_cert, int iter, int mac_iter,
75 int keytype)
76 {
77 PKCS12 *p12 = NULL;
78 STACK_OF(PKCS7) *safes = NULL;
79 STACK_OF(PKCS12_SAFEBAG) *bags = NULL;
80 PKCS12_SAFEBAG *bag = NULL;
81 int i;
82 unsigned char keyid[EVP_MAX_MD_SIZE];
83 unsigned int keyidlen = 0;
84
85 /* Set defaults */
86 if (!nid_cert) {
87 nid_cert = NID_pbe_WithSHA1And40BitRC2_CBC;
88 }
89 if (!nid_key)
90 nid_key = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
91 if (!iter)
92 iter = PKCS12_DEFAULT_ITER;
93 if (!mac_iter)
94 mac_iter = 1;
95
96 if (!pkey && !cert && !ca) {
97 PKCS12error(PKCS12_R_INVALID_NULL_ARGUMENT);
98 return NULL;
99 }
100
101 if (pkey && cert) {
102 if (!X509_check_private_key(cert, pkey))
103 return NULL;
104 if (!X509_digest(cert, EVP_sha1(), keyid, &keyidlen))
105 return NULL;
106 }
107
108 if (cert) {
109 bag = PKCS12_add_cert(&bags, cert);
110 if (name && !PKCS12_add_friendlyname(bag, name, -1))
111 goto err;
112 if (keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
113 goto err;
114 }
115
116 /* Add all other certificates */
117 for (i = 0; i < sk_X509_num(ca); i++) {
118 if (!PKCS12_add_cert(&bags, sk_X509_value(ca, i)))
119 goto err;
120 }
121
122 if (bags && !PKCS12_add_safe(&safes, bags, nid_cert, iter, pass))
123 goto err;
124
125 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
126 bags = NULL;
127
128 if (pkey) {
129 bag = PKCS12_add_key(&bags, pkey, keytype, iter, nid_key, pass);
130
131 if (!bag)
132 goto err;
133
134 if (name && !PKCS12_add_friendlyname(bag, name, -1))
135 goto err;
136 if (keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
137 goto err;
138 }
139
140 if (bags && !PKCS12_add_safe(&safes, bags, -1, 0, NULL))
141 goto err;
142
143 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
144 bags = NULL;
145
146 p12 = PKCS12_add_safes(safes, 0);
147
148 if (!p12)
149 goto err;
150
151 sk_PKCS7_pop_free(safes, PKCS7_free);
152
153 safes = NULL;
154
155 if ((mac_iter != -1) &&
156 !PKCS12_set_mac(p12, pass, -1, NULL, 0, mac_iter, NULL))
157 goto err;
158
159 return p12;
160
161 err:
162 if (p12)
163 PKCS12_free(p12);
164 if (safes)
165 sk_PKCS7_pop_free(safes, PKCS7_free);
166 if (bags)
167 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
168 return NULL;
169 }
170 LCRYPTO_ALIAS(PKCS12_create);
171
172 PKCS12_SAFEBAG *
PKCS12_add_cert(STACK_OF (PKCS12_SAFEBAG)** pbags,X509 * cert)173 PKCS12_add_cert(STACK_OF(PKCS12_SAFEBAG) **pbags, X509 *cert)
174 {
175 PKCS12_SAFEBAG *bag = NULL;
176 char *name;
177 int namelen = -1;
178 unsigned char *keyid;
179 int keyidlen = -1;
180
181 /* Add user certificate */
182 if (!(bag = PKCS12_x5092certbag(cert)))
183 goto err;
184
185 /* Use friendlyName and localKeyID in certificate.
186 * (if present)
187 */
188 name = (char *)X509_alias_get0(cert, &namelen);
189 if (name && !PKCS12_add_friendlyname(bag, name, namelen))
190 goto err;
191
192 keyid = X509_keyid_get0(cert, &keyidlen);
193
194 if (keyid && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
195 goto err;
196
197 if (!pkcs12_add_bag(pbags, bag))
198 goto err;
199
200 return bag;
201
202 err:
203 if (bag)
204 PKCS12_SAFEBAG_free(bag);
205
206 return NULL;
207 }
208
209 PKCS12_SAFEBAG *
PKCS12_add_key(STACK_OF (PKCS12_SAFEBAG)** pbags,EVP_PKEY * key,int key_usage,int iter,int nid_key,const char * pass)210 PKCS12_add_key(STACK_OF(PKCS12_SAFEBAG) **pbags, EVP_PKEY *key, int key_usage,
211 int iter, int nid_key, const char *pass)
212 {
213 PKCS12_SAFEBAG *bag = NULL;
214 PKCS8_PRIV_KEY_INFO *p8 = NULL;
215
216 /* Make a PKCS#8 structure */
217 if (!(p8 = EVP_PKEY2PKCS8(key)))
218 goto err;
219 if (key_usage && !PKCS8_add_keyusage(p8, key_usage))
220 goto err;
221 if (nid_key != -1) {
222 bag = PKCS12_SAFEBAG_create_pkcs8_encrypt(nid_key, pass, -1,
223 NULL, 0, iter, p8);
224 PKCS8_PRIV_KEY_INFO_free(p8);
225 p8 = NULL;
226 } else {
227 bag = PKCS12_SAFEBAG_create0_p8inf(p8);
228 if (bag != NULL)
229 p8 = NULL;
230 }
231
232 if (!bag)
233 goto err;
234
235 if (!pkcs12_add_bag(pbags, bag))
236 goto err;
237
238 return bag;
239
240 err:
241 if (bag)
242 PKCS12_SAFEBAG_free(bag);
243 if (p8)
244 PKCS8_PRIV_KEY_INFO_free(p8);
245
246 return NULL;
247 }
248
249 int
PKCS12_add_safe(STACK_OF (PKCS7)** psafes,STACK_OF (PKCS12_SAFEBAG)* bags,int nid_safe,int iter,const char * pass)250 PKCS12_add_safe(STACK_OF(PKCS7) **psafes, STACK_OF(PKCS12_SAFEBAG) *bags,
251 int nid_safe, int iter, const char *pass)
252 {
253 PKCS7 *p7 = NULL;
254 int free_safes = 0;
255
256 if (!*psafes) {
257 *psafes = sk_PKCS7_new_null();
258 if (!*psafes)
259 return 0;
260 free_safes = 1;
261 } else
262 free_safes = 0;
263
264 if (nid_safe == 0)
265 nid_safe = NID_pbe_WithSHA1And40BitRC2_CBC;
266
267 if (nid_safe == -1)
268 p7 = PKCS12_pack_p7data(bags);
269 else
270 p7 = PKCS12_pack_p7encdata(nid_safe, pass, -1, NULL, 0,
271 iter, bags);
272 if (!p7)
273 goto err;
274
275 if (!sk_PKCS7_push(*psafes, p7))
276 goto err;
277
278 return 1;
279
280 err:
281 if (free_safes) {
282 sk_PKCS7_free(*psafes);
283 *psafes = NULL;
284 }
285
286 if (p7)
287 PKCS7_free(p7);
288
289 return 0;
290 }
291
292 static int
pkcs12_add_bag(STACK_OF (PKCS12_SAFEBAG)** pbags,PKCS12_SAFEBAG * bag)293 pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags, PKCS12_SAFEBAG *bag)
294 {
295 int free_bags;
296
297 if (!pbags)
298 return 1;
299 if (!*pbags) {
300 *pbags = sk_PKCS12_SAFEBAG_new_null();
301 if (!*pbags)
302 return 0;
303 free_bags = 1;
304 } else
305 free_bags = 0;
306
307 if (!sk_PKCS12_SAFEBAG_push(*pbags, bag)) {
308 if (free_bags) {
309 sk_PKCS12_SAFEBAG_free(*pbags);
310 *pbags = NULL;
311 }
312 return 0;
313 }
314
315 return 1;
316 }
317
318 PKCS12 *
PKCS12_add_safes(STACK_OF (PKCS7)* safes,int nid_p7)319 PKCS12_add_safes(STACK_OF(PKCS7) *safes, int nid_p7)
320 {
321 PKCS12 *p12;
322
323 if (nid_p7 <= 0)
324 nid_p7 = NID_pkcs7_data;
325 p12 = PKCS12_init(nid_p7);
326
327 if (!p12)
328 return NULL;
329
330 if (!PKCS12_pack_authsafes(p12, safes)) {
331 PKCS12_free(p12);
332 return NULL;
333 }
334
335 return p12;
336 }
337