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#ifdef OPENSSL_FIPS
63#include <openssl/fips.h>
64#endif
65
66
67
68static int pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags, PKCS12_SAFEBAG *bag);
69
70static int copy_bag_attr(PKCS12_SAFEBAG *bag, EVP_PKEY *pkey, int nid)
71	{
72	int idx;
73	X509_ATTRIBUTE *attr;
74	idx = EVP_PKEY_get_attr_by_NID(pkey, nid, -1);
75	if (idx < 0)
76		return 1;
77	attr = EVP_PKEY_get_attr(pkey, idx);
78	if (!X509at_add1_attr(&bag->attrib, attr))
79		return 0;
80	return 1;
81	}
82
83PKCS12 *PKCS12_create(char *pass, 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	unsigned int namelen = name ? strlen(name) : -1;
95
96	/* Set defaults */
97	if (!nid_cert)
98		{
99#ifdef OPENSSL_FIPS
100		if (FIPS_mode())
101			nid_cert = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
102		else
103#endif
104#ifdef OPENSSL_NO_RC2
105		nid_cert = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
106#else
107		nid_cert = NID_pbe_WithSHA1And40BitRC2_CBC;
108#endif
109		}
110	if (!nid_key)
111		nid_key = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
112	if (!iter)
113		iter = PKCS12_DEFAULT_ITER;
114	if (!mac_iter)
115		mac_iter = 1;
116
117	if(!pkey && !cert && !ca)
118		{
119		PKCS12err(PKCS12_F_PKCS12_CREATE,PKCS12_R_INVALID_NULL_ARGUMENT);
120		return NULL;
121		}
122
123	if (pkey && cert)
124		{
125		if(!X509_check_private_key(cert, pkey))
126			return NULL;
127		X509_digest(cert, EVP_sha1(), keyid, &keyidlen);
128		}
129
130	if (cert)
131		{
132		bag = PKCS12_add_cert(&bags, cert);
133		if(name && !PKCS12_add_friendlyname(bag, name, namelen))
134			goto err;
135		if(keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
136			goto err;
137		}
138
139	/* Add all other certificates */
140	for(i = 0; i < sk_X509_num(ca); i++)
141		{
142		if (!PKCS12_add_cert(&bags, sk_X509_value(ca, i)))
143			goto err;
144		}
145
146	if (bags && !PKCS12_add_safe(&safes, bags, nid_cert, iter, pass))
147			goto err;
148
149	sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
150	bags = NULL;
151
152	if (pkey)
153		{
154		bag = PKCS12_add_key(&bags, pkey, keytype, iter, nid_key, pass);
155
156		if (!bag)
157			goto err;
158
159		if (!copy_bag_attr(bag, pkey, NID_ms_csp_name))
160			goto err;
161		if (!copy_bag_attr(bag, pkey, NID_LocalKeySet))
162			goto err;
163
164		if(name && !PKCS12_add_friendlyname(bag, name, namelen))
165			goto err;
166		if(keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
167			goto err;
168		}
169
170	if (bags && !PKCS12_add_safe(&safes, bags, -1, 0, NULL))
171			goto err;
172
173	sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
174	bags = NULL;
175
176	p12 = PKCS12_add_safes(safes, 0);
177
178	if (!p12)
179		goto err;
180
181	sk_PKCS7_pop_free(safes, PKCS7_free);
182
183	safes = NULL;
184
185	if ((mac_iter != -1) &&
186		!PKCS12_set_mac(p12, pass, -1, NULL, 0, mac_iter, NULL))
187	    goto err;
188
189	return p12;
190
191	err:
192
193	if (p12)
194		PKCS12_free(p12);
195	if (safes)
196		sk_PKCS7_pop_free(safes, PKCS7_free);
197	if (bags)
198		sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
199	return NULL;
200
201}
202
203PKCS12_SAFEBAG *PKCS12_add_cert(STACK_OF(PKCS12_SAFEBAG) **pbags, X509 *cert)
204	{
205	PKCS12_SAFEBAG *bag = NULL;
206	char *name;
207	int namelen = -1;
208	unsigned char *keyid;
209	int keyidlen = -1;
210
211	/* Add user certificate */
212	if(!(bag = PKCS12_x5092certbag(cert)))
213		goto err;
214
215	/* Use friendlyName and localKeyID in certificate.
216	 * (if present)
217	 */
218
219	name = (char *)X509_alias_get0(cert, &namelen);
220
221	if(name && !PKCS12_add_friendlyname(bag, name, namelen))
222		goto err;
223
224	keyid = X509_keyid_get0(cert, &keyidlen);
225
226	if(keyid && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
227		goto err;
228
229	if (!pkcs12_add_bag(pbags, bag))
230		goto err;
231
232	return bag;
233
234	err:
235
236	if (bag)
237		PKCS12_SAFEBAG_free(bag);
238
239	return NULL;
240
241	}
242
243PKCS12_SAFEBAG *PKCS12_add_key(STACK_OF(PKCS12_SAFEBAG) **pbags, EVP_PKEY *key,
244						int key_usage, int iter,
245						int nid_key, char *pass)
246	{
247
248	PKCS12_SAFEBAG *bag = NULL;
249	PKCS8_PRIV_KEY_INFO *p8 = NULL;
250
251	/* Make a PKCS#8 structure */
252	if(!(p8 = EVP_PKEY2PKCS8(key)))
253		goto err;
254	if(key_usage && !PKCS8_add_keyusage(p8, key_usage))
255		goto err;
256	if (nid_key != -1)
257		{
258		bag = PKCS12_MAKE_SHKEYBAG(nid_key, pass, -1, NULL, 0, iter, p8);
259		PKCS8_PRIV_KEY_INFO_free(p8);
260		}
261	else
262		bag = PKCS12_MAKE_KEYBAG(p8);
263
264	if(!bag)
265		goto err;
266
267	if (!pkcs12_add_bag(pbags, bag))
268		goto err;
269
270	return bag;
271
272	err:
273
274	if (bag)
275		PKCS12_SAFEBAG_free(bag);
276
277	return NULL;
278
279	}
280
281int PKCS12_add_safe(STACK_OF(PKCS7) **psafes, STACK_OF(PKCS12_SAFEBAG) *bags,
282						int nid_safe, int iter, char *pass)
283	{
284	PKCS7 *p7 = NULL;
285	int free_safes = 0;
286
287	if (!*psafes)
288		{
289		*psafes = sk_PKCS7_new_null();
290		if (!*psafes)
291			return 0;
292		free_safes = 1;
293		}
294	else
295		free_safes = 0;
296
297	if (nid_safe == 0)
298#ifdef OPENSSL_NO_RC2
299		nid_safe = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
300#else
301		nid_safe = NID_pbe_WithSHA1And40BitRC2_CBC;
302#endif
303
304	if (nid_safe == -1)
305		p7 = PKCS12_pack_p7data(bags);
306	else
307		p7 = PKCS12_pack_p7encdata(nid_safe, pass, -1, NULL, 0,
308					  iter, bags);
309	if (!p7)
310		goto err;
311
312	if (!sk_PKCS7_push(*psafes, p7))
313		goto err;
314
315	return 1;
316
317	err:
318	if (free_safes)
319		{
320		sk_PKCS7_free(*psafes);
321		*psafes = NULL;
322		}
323
324	if (p7)
325		PKCS7_free(p7);
326
327	return 0;
328
329	}
330
331static int pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags, PKCS12_SAFEBAG *bag)
332	{
333	int free_bags;
334	if (!pbags)
335		return 1;
336	if (!*pbags)
337		{
338		*pbags = sk_PKCS12_SAFEBAG_new_null();
339		if (!*pbags)
340			return 0;
341		free_bags = 1;
342		}
343	else
344		free_bags = 0;
345
346	if (!sk_PKCS12_SAFEBAG_push(*pbags, bag))
347		{
348		if (free_bags)
349			{
350			sk_PKCS12_SAFEBAG_free(*pbags);
351			*pbags = NULL;
352			}
353		return 0;
354		}
355
356	return 1;
357
358	}
359
360
361PKCS12 *PKCS12_add_safes(STACK_OF(PKCS7) *safes, int nid_p7)
362	{
363	PKCS12 *p12;
364	if (nid_p7 <= 0)
365		nid_p7 = NID_pkcs7_data;
366	p12 = PKCS12_init(nid_p7);
367
368	if (!p12)
369		return NULL;
370
371	if(!PKCS12_pack_authsafes(p12, safes))
372		{
373		PKCS12_free(p12);
374		return NULL;
375		}
376
377	return p12;
378
379	}
380