1 /* $OpenBSD: p12_crt.c,v 1.18 2018/05/13 13:46:55 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
64 static int pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags,
65 PKCS12_SAFEBAG *bag);
66
67 static int
copy_bag_attr(PKCS12_SAFEBAG * bag,EVP_PKEY * pkey,int nid)68 copy_bag_attr(PKCS12_SAFEBAG *bag, EVP_PKEY *pkey, int nid)
69 {
70 int idx;
71 X509_ATTRIBUTE *attr;
72
73 idx = EVP_PKEY_get_attr_by_NID(pkey, nid, -1);
74 if (idx < 0)
75 return 1;
76 attr = EVP_PKEY_get_attr(pkey, idx);
77 if (!X509at_add1_attr(&bag->attrib, attr))
78 return 0;
79 return 1;
80 }
81
82 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)83 PKCS12_create(const char *pass, const char *name, EVP_PKEY *pkey, X509 *cert,
84 STACK_OF(X509) *ca, int nid_key, int nid_cert, int iter, int mac_iter,
85 int keytype)
86 {
87 PKCS12 *p12 = NULL;
88 STACK_OF(PKCS7) *safes = NULL;
89 STACK_OF(PKCS12_SAFEBAG) *bags = NULL;
90 PKCS12_SAFEBAG *bag = NULL;
91 int i;
92 unsigned char keyid[EVP_MAX_MD_SIZE];
93 unsigned int keyidlen = 0;
94
95 /* Set defaults */
96 if (!nid_cert) {
97 nid_cert = NID_pbe_WithSHA1And40BitRC2_CBC;
98 }
99 if (!nid_key)
100 nid_key = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
101 if (!iter)
102 iter = PKCS12_DEFAULT_ITER;
103 if (!mac_iter)
104 mac_iter = 1;
105
106 if (!pkey && !cert && !ca) {
107 PKCS12error(PKCS12_R_INVALID_NULL_ARGUMENT);
108 return NULL;
109 }
110
111 if (pkey && cert) {
112 if (!X509_check_private_key(cert, pkey))
113 return NULL;
114 X509_digest(cert, EVP_sha1(), keyid, &keyidlen);
115 }
116
117 if (cert) {
118 bag = PKCS12_add_cert(&bags, cert);
119 if (name && !PKCS12_add_friendlyname(bag, name, -1))
120 goto err;
121 if (keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
122 goto err;
123 }
124
125 /* Add all other certificates */
126 for (i = 0; i < sk_X509_num(ca); i++) {
127 if (!PKCS12_add_cert(&bags, sk_X509_value(ca, i)))
128 goto err;
129 }
130
131 if (bags && !PKCS12_add_safe(&safes, bags, nid_cert, iter, pass))
132 goto err;
133
134 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
135 bags = NULL;
136
137 if (pkey) {
138 bag = PKCS12_add_key(&bags, pkey, keytype, iter, nid_key, pass);
139
140 if (!bag)
141 goto err;
142
143 if (!copy_bag_attr(bag, pkey, NID_ms_csp_name))
144 goto err;
145 if (!copy_bag_attr(bag, pkey, NID_LocalKeySet))
146 goto err;
147
148 if (name && !PKCS12_add_friendlyname(bag, name, -1))
149 goto err;
150 if (keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
151 goto err;
152 }
153
154 if (bags && !PKCS12_add_safe(&safes, bags, -1, 0, NULL))
155 goto err;
156
157 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
158 bags = NULL;
159
160 p12 = PKCS12_add_safes(safes, 0);
161
162 if (!p12)
163 goto err;
164
165 sk_PKCS7_pop_free(safes, PKCS7_free);
166
167 safes = NULL;
168
169 if ((mac_iter != -1) &&
170 !PKCS12_set_mac(p12, pass, -1, NULL, 0, mac_iter, NULL))
171 goto err;
172
173 return p12;
174
175 err:
176 if (p12)
177 PKCS12_free(p12);
178 if (safes)
179 sk_PKCS7_pop_free(safes, PKCS7_free);
180 if (bags)
181 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
182 return NULL;
183 }
184
185 PKCS12_SAFEBAG *
PKCS12_add_cert(STACK_OF (PKCS12_SAFEBAG)** pbags,X509 * cert)186 PKCS12_add_cert(STACK_OF(PKCS12_SAFEBAG) **pbags, X509 *cert)
187 {
188 PKCS12_SAFEBAG *bag = NULL;
189 char *name;
190 int namelen = -1;
191 unsigned char *keyid;
192 int keyidlen = -1;
193
194 /* Add user certificate */
195 if (!(bag = PKCS12_x5092certbag(cert)))
196 goto err;
197
198 /* Use friendlyName and localKeyID in certificate.
199 * (if present)
200 */
201 name = (char *)X509_alias_get0(cert, &namelen);
202 if (name && !PKCS12_add_friendlyname(bag, name, namelen))
203 goto err;
204
205 keyid = X509_keyid_get0(cert, &keyidlen);
206
207 if (keyid && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
208 goto err;
209
210 if (!pkcs12_add_bag(pbags, bag))
211 goto err;
212
213 return bag;
214
215 err:
216 if (bag)
217 PKCS12_SAFEBAG_free(bag);
218
219 return NULL;
220 }
221
222 PKCS12_SAFEBAG *
PKCS12_add_key(STACK_OF (PKCS12_SAFEBAG)** pbags,EVP_PKEY * key,int key_usage,int iter,int nid_key,const char * pass)223 PKCS12_add_key(STACK_OF(PKCS12_SAFEBAG) **pbags, EVP_PKEY *key, int key_usage,
224 int iter, int nid_key, const char *pass)
225 {
226 PKCS12_SAFEBAG *bag = NULL;
227 PKCS8_PRIV_KEY_INFO *p8 = NULL;
228
229 /* Make a PKCS#8 structure */
230 if (!(p8 = EVP_PKEY2PKCS8(key)))
231 goto err;
232 if (key_usage && !PKCS8_add_keyusage(p8, key_usage))
233 goto err;
234 if (nid_key != -1) {
235 bag = PKCS12_MAKE_SHKEYBAG(nid_key, pass, -1, NULL, 0,
236 iter, p8);
237 PKCS8_PRIV_KEY_INFO_free(p8);
238 p8 = NULL;
239 } else {
240 bag = PKCS12_MAKE_KEYBAG(p8);
241 if (bag != NULL)
242 p8 = NULL;
243 }
244
245 if (!bag)
246 goto err;
247
248 if (!pkcs12_add_bag(pbags, bag))
249 goto err;
250
251 return bag;
252
253 err:
254 if (bag)
255 PKCS12_SAFEBAG_free(bag);
256 if (p8)
257 PKCS8_PRIV_KEY_INFO_free(p8);
258
259 return NULL;
260 }
261
262 int
PKCS12_add_safe(STACK_OF (PKCS7)** psafes,STACK_OF (PKCS12_SAFEBAG)* bags,int nid_safe,int iter,const char * pass)263 PKCS12_add_safe(STACK_OF(PKCS7) **psafes, STACK_OF(PKCS12_SAFEBAG) *bags,
264 int nid_safe, int iter, const char *pass)
265 {
266 PKCS7 *p7 = NULL;
267 int free_safes = 0;
268
269 if (!*psafes) {
270 *psafes = sk_PKCS7_new_null();
271 if (!*psafes)
272 return 0;
273 free_safes = 1;
274 } else
275 free_safes = 0;
276
277 if (nid_safe == 0)
278 nid_safe = NID_pbe_WithSHA1And40BitRC2_CBC;
279
280 if (nid_safe == -1)
281 p7 = PKCS12_pack_p7data(bags);
282 else
283 p7 = PKCS12_pack_p7encdata(nid_safe, pass, -1, NULL, 0,
284 iter, bags);
285 if (!p7)
286 goto err;
287
288 if (!sk_PKCS7_push(*psafes, p7))
289 goto err;
290
291 return 1;
292
293 err:
294 if (free_safes) {
295 sk_PKCS7_free(*psafes);
296 *psafes = NULL;
297 }
298
299 if (p7)
300 PKCS7_free(p7);
301
302 return 0;
303 }
304
305 static int
pkcs12_add_bag(STACK_OF (PKCS12_SAFEBAG)** pbags,PKCS12_SAFEBAG * bag)306 pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags, PKCS12_SAFEBAG *bag)
307 {
308 int free_bags;
309
310 if (!pbags)
311 return 1;
312 if (!*pbags) {
313 *pbags = sk_PKCS12_SAFEBAG_new_null();
314 if (!*pbags)
315 return 0;
316 free_bags = 1;
317 } else
318 free_bags = 0;
319
320 if (!sk_PKCS12_SAFEBAG_push(*pbags, bag)) {
321 if (free_bags) {
322 sk_PKCS12_SAFEBAG_free(*pbags);
323 *pbags = NULL;
324 }
325 return 0;
326 }
327
328 return 1;
329 }
330
331 PKCS12 *
PKCS12_add_safes(STACK_OF (PKCS7)* safes,int nid_p7)332 PKCS12_add_safes(STACK_OF(PKCS7) *safes, int nid_p7)
333 {
334 PKCS12 *p12;
335
336 if (nid_p7 <= 0)
337 nid_p7 = NID_pkcs7_data;
338 p12 = PKCS12_init(nid_p7);
339
340 if (!p12)
341 return NULL;
342
343 if (!PKCS12_pack_authsafes(p12, safes)) {
344 PKCS12_free(p12);
345 return NULL;
346 }
347
348 return p12;
349 }
350