p12_crt.c revision 264331 
1/* p12_crt.c */
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#include "cryptlib.h"
61#include <openssl/pkcs12.h>
62
63
64static int pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags, PKCS12_SAFEBAG *bag);
65
66static int copy_bag_attr(PKCS12_SAFEBAG *bag, EVP_PKEY *pkey, int nid)
67	{
68	int idx;
69	X509_ATTRIBUTE *attr;
70	idx = EVP_PKEY_get_attr_by_NID(pkey, nid, -1);
71	if (idx < 0)
72		return 1;
73	attr = EVP_PKEY_get_attr(pkey, idx);
74	if (!X509at_add1_attr(&bag->attrib, attr))
75		return 0;
76	return 1;
77	}
78
79PKCS12 *PKCS12_create(char *pass, char *name, EVP_PKEY *pkey, X509 *cert,
80	     STACK_OF(X509) *ca, int nid_key, int nid_cert, int iter, int mac_iter,
81	     int keytype)
82{
83	PKCS12 *p12 = NULL;
84	STACK_OF(PKCS7) *safes = NULL;
85	STACK_OF(PKCS12_SAFEBAG) *bags = NULL;
86	PKCS12_SAFEBAG *bag = NULL;
87	int i;
88	unsigned char keyid[EVP_MAX_MD_SIZE];
89	unsigned int keyidlen = 0;
90
91	/* Set defaults */
92	if (!nid_cert)
93		{
94#ifdef OPENSSL_FIPS
95		if (FIPS_mode())
96			nid_cert = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
97		else
98#endif
99		nid_cert = NID_pbe_WithSHA1And40BitRC2_CBC;
100		}
101	if (!nid_key)
102		nid_key = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
103	if (!iter)
104		iter = PKCS12_DEFAULT_ITER;
105	if (!mac_iter)
106		mac_iter = 1;
107
108	if(!pkey && !cert && !ca)
109		{
110		PKCS12err(PKCS12_F_PKCS12_CREATE,PKCS12_R_INVALID_NULL_ARGUMENT);
111		return NULL;
112		}
113
114	if (pkey && cert)
115		{
116		if(!X509_check_private_key(cert, pkey))
117			return NULL;
118		X509_digest(cert, EVP_sha1(), keyid, &keyidlen);
119		}
120
121	if (cert)
122		{
123		bag = PKCS12_add_cert(&bags, cert);
124		if(name && !PKCS12_add_friendlyname(bag, name, -1))
125			goto err;
126		if(keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
127			goto err;
128		}
129
130	/* Add all other certificates */
131	for(i = 0; i < sk_X509_num(ca); i++)
132		{
133		if (!PKCS12_add_cert(&bags, sk_X509_value(ca, i)))
134			goto err;
135		}
136
137	if (bags && !PKCS12_add_safe(&safes, bags, nid_cert, iter, pass))
138			goto err;
139
140	sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
141	bags = NULL;
142
143	if (pkey)
144		{
145		bag = PKCS12_add_key(&bags, pkey, keytype, iter, nid_key, pass);
146
147		if (!bag)
148			goto err;
149
150		if (!copy_bag_attr(bag, pkey, NID_ms_csp_name))
151			goto err;
152		if (!copy_bag_attr(bag, pkey, NID_LocalKeySet))
153			goto err;
154
155		if(name && !PKCS12_add_friendlyname(bag, name, -1))
156			goto err;
157		if(keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
158			goto err;
159		}
160
161	if (bags && !PKCS12_add_safe(&safes, bags, -1, 0, NULL))
162			goto err;
163
164	sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
165	bags = NULL;
166
167	p12 = PKCS12_add_safes(safes, 0);
168
169	if (!p12)
170		goto err;
171
172	sk_PKCS7_pop_free(safes, PKCS7_free);
173
174	safes = NULL;
175
176	if ((mac_iter != -1) &&
177		!PKCS12_set_mac(p12, pass, -1, NULL, 0, mac_iter, NULL))
178	    goto err;
179
180	return p12;
181
182	err:
183
184	if (p12)
185		PKCS12_free(p12);
186	if (safes)
187		sk_PKCS7_pop_free(safes, PKCS7_free);
188	if (bags)
189		sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
190	return NULL;
191
192}
193
194PKCS12_SAFEBAG *PKCS12_add_cert(STACK_OF(PKCS12_SAFEBAG) **pbags, X509 *cert)
195	{
196	PKCS12_SAFEBAG *bag = NULL;
197	char *name;
198	int namelen = -1;
199	unsigned char *keyid;
200	int keyidlen = -1;
201
202	/* Add user certificate */
203	if(!(bag = PKCS12_x5092certbag(cert)))
204		goto err;
205
206	/* Use friendlyName and localKeyID in certificate.
207	 * (if present)
208	 */
209
210	name = (char *)X509_alias_get0(cert, &namelen);
211
212	if(name && !PKCS12_add_friendlyname(bag, name, namelen))
213		goto err;
214
215	keyid = X509_keyid_get0(cert, &keyidlen);
216
217	if(keyid && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
218		goto err;
219
220	if (!pkcs12_add_bag(pbags, bag))
221		goto err;
222
223	return bag;
224
225	err:
226
227	if (bag)
228		PKCS12_SAFEBAG_free(bag);
229
230	return NULL;
231
232	}
233
234PKCS12_SAFEBAG *PKCS12_add_key(STACK_OF(PKCS12_SAFEBAG) **pbags, EVP_PKEY *key,
235						int key_usage, int iter,
236						int nid_key, char *pass)
237	{
238
239	PKCS12_SAFEBAG *bag = NULL;
240	PKCS8_PRIV_KEY_INFO *p8 = NULL;
241
242	/* Make a PKCS#8 structure */
243	if(!(p8 = EVP_PKEY2PKCS8(key)))
244		goto err;
245	if(key_usage && !PKCS8_add_keyusage(p8, key_usage))
246		goto err;
247	if (nid_key != -1)
248		{
249		bag = PKCS12_MAKE_SHKEYBAG(nid_key, pass, -1, NULL, 0, iter, p8);
250		PKCS8_PRIV_KEY_INFO_free(p8);
251		}
252	else
253		bag = PKCS12_MAKE_KEYBAG(p8);
254
255	if(!bag)
256		goto err;
257
258	if (!pkcs12_add_bag(pbags, bag))
259		goto err;
260
261	return bag;
262
263	err:
264
265	if (bag)
266		PKCS12_SAFEBAG_free(bag);
267
268	return NULL;
269
270	}
271
272int PKCS12_add_safe(STACK_OF(PKCS7) **psafes, STACK_OF(PKCS12_SAFEBAG) *bags,
273						int nid_safe, int iter, char *pass)
274	{
275	PKCS7 *p7 = NULL;
276	int free_safes = 0;
277
278	if (!*psafes)
279		{
280		*psafes = sk_PKCS7_new_null();
281		if (!*psafes)
282			return 0;
283		free_safes = 1;
284		}
285	else
286		free_safes = 0;
287
288	if (nid_safe == 0)
289		nid_safe = NID_pbe_WithSHA1And40BitRC2_CBC;
290
291	if (nid_safe == -1)
292		p7 = PKCS12_pack_p7data(bags);
293	else
294		p7 = PKCS12_pack_p7encdata(nid_safe, pass, -1, NULL, 0,
295					  iter, bags);
296	if (!p7)
297		goto err;
298
299	if (!sk_PKCS7_push(*psafes, p7))
300		goto err;
301
302	return 1;
303
304	err:
305	if (free_safes)
306		{
307		sk_PKCS7_free(*psafes);
308		*psafes = NULL;
309		}
310
311	if (p7)
312		PKCS7_free(p7);
313
314	return 0;
315
316	}
317
318static int pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags, PKCS12_SAFEBAG *bag)
319	{
320	int free_bags;
321	if (!pbags)
322		return 1;
323	if (!*pbags)
324		{
325		*pbags = sk_PKCS12_SAFEBAG_new_null();
326		if (!*pbags)
327			return 0;
328		free_bags = 1;
329		}
330	else
331		free_bags = 0;
332
333	if (!sk_PKCS12_SAFEBAG_push(*pbags, bag))
334		{
335		if (free_bags)
336			{
337			sk_PKCS12_SAFEBAG_free(*pbags);
338			*pbags = NULL;
339			}
340		return 0;
341		}
342
343	return 1;
344
345	}
346
347
348PKCS12 *PKCS12_add_safes(STACK_OF(PKCS7) *safes, int nid_p7)
349	{
350	PKCS12 *p12;
351	if (nid_p7 <= 0)
352		nid_p7 = NID_pkcs7_data;
353	p12 = PKCS12_init(nid_p7);
354
355	if (!p12)
356		return NULL;
357
358	if(!PKCS12_pack_authsafes(p12, safes))
359		{
360		PKCS12_free(p12);
361		return NULL;
362		}
363
364	return p12;
365
366	}
367