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#ifdef OPENSSL_NO_RC2
100		nid_cert = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
101#else
102		nid_cert = NID_pbe_WithSHA1And40BitRC2_CBC;
103#endif
104		}
105	if (!nid_key)
106		nid_key = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
107	if (!iter)
108		iter = PKCS12_DEFAULT_ITER;
109	if (!mac_iter)
110		mac_iter = 1;
111
112	if(!pkey && !cert && !ca)
113		{
114		PKCS12err(PKCS12_F_PKCS12_CREATE,PKCS12_R_INVALID_NULL_ARGUMENT);
115		return NULL;
116		}
117
118	if (pkey && cert)
119		{
120		if(!X509_check_private_key(cert, pkey))
121			return NULL;
122		X509_digest(cert, EVP_sha1(), keyid, &keyidlen);
123		}
124
125	if (cert)
126		{
127		bag = PKCS12_add_cert(&bags, cert);
128		if(name && !PKCS12_add_friendlyname(bag, name, -1))
129			goto err;
130		if(keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
131			goto err;
132		}
133
134	/* Add all other certificates */
135	for(i = 0; i < sk_X509_num(ca); i++)
136		{
137		if (!PKCS12_add_cert(&bags, sk_X509_value(ca, i)))
138			goto err;
139		}
140
141	if (bags && !PKCS12_add_safe(&safes, bags, nid_cert, iter, pass))
142			goto err;
143
144	sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
145	bags = NULL;
146
147	if (pkey)
148		{
149		bag = PKCS12_add_key(&bags, pkey, keytype, iter, nid_key, pass);
150
151		if (!bag)
152			goto err;
153
154		if (!copy_bag_attr(bag, pkey, NID_ms_csp_name))
155			goto err;
156		if (!copy_bag_attr(bag, pkey, NID_LocalKeySet))
157			goto err;
158
159		if(name && !PKCS12_add_friendlyname(bag, name, -1))
160			goto err;
161		if(keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
162			goto err;
163		}
164
165	if (bags && !PKCS12_add_safe(&safes, bags, -1, 0, NULL))
166			goto err;
167
168	sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
169	bags = NULL;
170
171	p12 = PKCS12_add_safes(safes, 0);
172
173	if (!p12)
174		goto err;
175
176	sk_PKCS7_pop_free(safes, PKCS7_free);
177
178	safes = NULL;
179
180	if ((mac_iter != -1) &&
181		!PKCS12_set_mac(p12, pass, -1, NULL, 0, mac_iter, NULL))
182	    goto err;
183
184	return p12;
185
186	err:
187
188	if (p12)
189		PKCS12_free(p12);
190	if (safes)
191		sk_PKCS7_pop_free(safes, PKCS7_free);
192	if (bags)
193		sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
194	return NULL;
195
196}
197
198PKCS12_SAFEBAG *PKCS12_add_cert(STACK_OF(PKCS12_SAFEBAG) **pbags, X509 *cert)
199	{
200	PKCS12_SAFEBAG *bag = NULL;
201	char *name;
202	int namelen = -1;
203	unsigned char *keyid;
204	int keyidlen = -1;
205
206	/* Add user certificate */
207	if(!(bag = PKCS12_x5092certbag(cert)))
208		goto err;
209
210	/* Use friendlyName and localKeyID in certificate.
211	 * (if present)
212	 */
213
214	name = (char *)X509_alias_get0(cert, &namelen);
215
216	if(name && !PKCS12_add_friendlyname(bag, name, namelen))
217		goto err;
218
219	keyid = X509_keyid_get0(cert, &keyidlen);
220
221	if(keyid && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
222		goto err;
223
224	if (!pkcs12_add_bag(pbags, bag))
225		goto err;
226
227	return bag;
228
229	err:
230
231	if (bag)
232		PKCS12_SAFEBAG_free(bag);
233
234	return NULL;
235
236	}
237
238PKCS12_SAFEBAG *PKCS12_add_key(STACK_OF(PKCS12_SAFEBAG) **pbags, EVP_PKEY *key,
239						int key_usage, int iter,
240						int nid_key, char *pass)
241	{
242
243	PKCS12_SAFEBAG *bag = NULL;
244	PKCS8_PRIV_KEY_INFO *p8 = NULL;
245
246	/* Make a PKCS#8 structure */
247	if(!(p8 = EVP_PKEY2PKCS8(key)))
248		goto err;
249	if(key_usage && !PKCS8_add_keyusage(p8, key_usage))
250		goto err;
251	if (nid_key != -1)
252		{
253		bag = PKCS12_MAKE_SHKEYBAG(nid_key, pass, -1, NULL, 0, iter, p8);
254		PKCS8_PRIV_KEY_INFO_free(p8);
255		}
256	else
257		bag = PKCS12_MAKE_KEYBAG(p8);
258
259	if(!bag)
260		goto err;
261
262	if (!pkcs12_add_bag(pbags, bag))
263		goto err;
264
265	return bag;
266
267	err:
268
269	if (bag)
270		PKCS12_SAFEBAG_free(bag);
271
272	return NULL;
273
274	}
275
276int PKCS12_add_safe(STACK_OF(PKCS7) **psafes, STACK_OF(PKCS12_SAFEBAG) *bags,
277						int nid_safe, int iter, char *pass)
278	{
279	PKCS7 *p7 = NULL;
280	int free_safes = 0;
281
282	if (!*psafes)
283		{
284		*psafes = sk_PKCS7_new_null();
285		if (!*psafes)
286			return 0;
287		free_safes = 1;
288		}
289	else
290		free_safes = 0;
291
292	if (nid_safe == 0)
293#ifdef OPENSSL_NO_RC2
294		nid_safe = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
295#else
296		nid_safe = NID_pbe_WithSHA1And40BitRC2_CBC;
297#endif
298
299	if (nid_safe == -1)
300		p7 = PKCS12_pack_p7data(bags);
301	else
302		p7 = PKCS12_pack_p7encdata(nid_safe, pass, -1, NULL, 0,
303					  iter, bags);
304	if (!p7)
305		goto err;
306
307	if (!sk_PKCS7_push(*psafes, p7))
308		goto err;
309
310	return 1;
311
312	err:
313	if (free_safes)
314		{
315		sk_PKCS7_free(*psafes);
316		*psafes = NULL;
317		}
318
319	if (p7)
320		PKCS7_free(p7);
321
322	return 0;
323
324	}
325
326static int pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags, PKCS12_SAFEBAG *bag)
327	{
328	int free_bags;
329	if (!pbags)
330		return 1;
331	if (!*pbags)
332		{
333		*pbags = sk_PKCS12_SAFEBAG_new_null();
334		if (!*pbags)
335			return 0;
336		free_bags = 1;
337		}
338	else
339		free_bags = 0;
340
341	if (!sk_PKCS12_SAFEBAG_push(*pbags, bag))
342		{
343		if (free_bags)
344			{
345			sk_PKCS12_SAFEBAG_free(*pbags);
346			*pbags = NULL;
347			}
348		return 0;
349		}
350
351	return 1;
352
353	}
354
355
356PKCS12 *PKCS12_add_safes(STACK_OF(PKCS7) *safes, int nid_p7)
357	{
358	PKCS12 *p12;
359	if (nid_p7 <= 0)
360		nid_p7 = NID_pkcs7_data;
361	p12 = PKCS12_init(nid_p7);
362
363	if (!p12)
364		return NULL;
365
366	if(!PKCS12_pack_authsafes(p12, safes))
367		{
368		PKCS12_free(p12);
369		return NULL;
370		}
371
372	return p12;
373
374	}
375