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authorcvs2svn <admin@example.com>2012-07-13 17:49:56 +0000
committercvs2svn <admin@example.com>2012-07-13 17:49:56 +0000
commitee04221ea8063435416c7e6369e6eae76843aa71 (patch)
tree821921a1dd0a5a3cece91121e121cc63c4b68128 /src/lib/libcrypto/pkcs12/p12_kiss.c
parentadf6731f6e1d04718aee00cb93435143046aee9a (diff)
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This commit was manufactured by cvs2git to create tag 'eric_g2k12'.eric_g2k12
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-rw-r--r--src/lib/libcrypto/pkcs12/p12_kiss.c302
1 files changed, 0 insertions, 302 deletions
diff --git a/src/lib/libcrypto/pkcs12/p12_kiss.c b/src/lib/libcrypto/pkcs12/p12_kiss.c
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--- a/src/lib/libcrypto/pkcs12/p12_kiss.c
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1/* p12_kiss.c */
2/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 1999.
4 */
5/* ====================================================================
6 * Copyright (c) 1999 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/* Simplified PKCS#12 routines */
64
65static int parse_pk12( PKCS12 *p12, const char *pass, int passlen,
66 EVP_PKEY **pkey, STACK_OF(X509) *ocerts);
67
68static int parse_bags( STACK_OF(PKCS12_SAFEBAG) *bags, const char *pass,
69 int passlen, EVP_PKEY **pkey, STACK_OF(X509) *ocerts);
70
71static int parse_bag( PKCS12_SAFEBAG *bag, const char *pass, int passlen,
72 EVP_PKEY **pkey, STACK_OF(X509) *ocerts);
73
74/* Parse and decrypt a PKCS#12 structure returning user key, user cert
75 * and other (CA) certs. Note either ca should be NULL, *ca should be NULL,
76 * or it should point to a valid STACK structure. pkey and cert can be
77 * passed unitialised.
78 */
79
80int PKCS12_parse(PKCS12 *p12, const char *pass, EVP_PKEY **pkey, X509 **cert,
81 STACK_OF(X509) **ca)
82{
83 STACK_OF(X509) *ocerts = NULL;
84 X509 *x = NULL;
85 /* Check for NULL PKCS12 structure */
86
87 if(!p12)
88 {
89 PKCS12err(PKCS12_F_PKCS12_PARSE,PKCS12_R_INVALID_NULL_PKCS12_POINTER);
90 return 0;
91 }
92
93 if(pkey)
94 *pkey = NULL;
95 if(cert)
96 *cert = NULL;
97
98 /* Check the mac */
99
100 /* If password is zero length or NULL then try verifying both cases
101 * to determine which password is correct. The reason for this is that
102 * under PKCS#12 password based encryption no password and a zero length
103 * password are two different things...
104 */
105
106 if(!pass || !*pass) {
107 if(PKCS12_verify_mac(p12, NULL, 0)) pass = NULL;
108 else if(PKCS12_verify_mac(p12, "", 0)) pass = "";
109 else {
110 PKCS12err(PKCS12_F_PKCS12_PARSE,PKCS12_R_MAC_VERIFY_FAILURE);
111 goto err;
112 }
113 } else if (!PKCS12_verify_mac(p12, pass, -1)) {
114 PKCS12err(PKCS12_F_PKCS12_PARSE,PKCS12_R_MAC_VERIFY_FAILURE);
115 goto err;
116 }
117
118 /* Allocate stack for other certificates */
119 ocerts = sk_X509_new_null();
120
121 if (!ocerts)
122 {
123 PKCS12err(PKCS12_F_PKCS12_PARSE,ERR_R_MALLOC_FAILURE);
124 return 0;
125 }
126
127 if (!parse_pk12 (p12, pass, -1, pkey, ocerts))
128 {
129 PKCS12err(PKCS12_F_PKCS12_PARSE,PKCS12_R_PARSE_ERROR);
130 goto err;
131 }
132
133 while ((x = sk_X509_pop(ocerts)))
134 {
135 if (pkey && *pkey && cert && !*cert)
136 {
137 if (X509_check_private_key(x, *pkey))
138 {
139 *cert = x;
140 x = NULL;
141 }
142 }
143
144 if (ca && x)
145 {
146 if (!*ca)
147 *ca = sk_X509_new_null();
148 if (!*ca)
149 goto err;
150 if (!sk_X509_push(*ca, x))
151 goto err;
152 x = NULL;
153 }
154 if (x)
155 X509_free(x);
156 }
157
158 if (ocerts)
159 sk_X509_pop_free(ocerts, X509_free);
160
161 return 1;
162
163 err:
164
165 if (pkey && *pkey)
166 EVP_PKEY_free(*pkey);
167 if (cert && *cert)
168 X509_free(*cert);
169 if (x)
170 X509_free(*cert);
171 if (ocerts)
172 sk_X509_pop_free(ocerts, X509_free);
173 return 0;
174
175}
176
177/* Parse the outer PKCS#12 structure */
178
179static int parse_pk12(PKCS12 *p12, const char *pass, int passlen,
180 EVP_PKEY **pkey, STACK_OF(X509) *ocerts)
181{
182 STACK_OF(PKCS7) *asafes;
183 STACK_OF(PKCS12_SAFEBAG) *bags;
184 int i, bagnid;
185 PKCS7 *p7;
186
187 if (!(asafes = PKCS12_unpack_authsafes (p12))) return 0;
188 for (i = 0; i < sk_PKCS7_num (asafes); i++) {
189 p7 = sk_PKCS7_value (asafes, i);
190 bagnid = OBJ_obj2nid (p7->type);
191 if (bagnid == NID_pkcs7_data) {
192 bags = PKCS12_unpack_p7data(p7);
193 } else if (bagnid == NID_pkcs7_encrypted) {
194 bags = PKCS12_unpack_p7encdata(p7, pass, passlen);
195 } else continue;
196 if (!bags) {
197 sk_PKCS7_pop_free(asafes, PKCS7_free);
198 return 0;
199 }
200 if (!parse_bags(bags, pass, passlen, pkey, ocerts)) {
201 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
202 sk_PKCS7_pop_free(asafes, PKCS7_free);
203 return 0;
204 }
205 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
206 }
207 sk_PKCS7_pop_free(asafes, PKCS7_free);
208 return 1;
209}
210
211
212static int parse_bags(STACK_OF(PKCS12_SAFEBAG) *bags, const char *pass,
213 int passlen, EVP_PKEY **pkey, STACK_OF(X509) *ocerts)
214{
215 int i;
216 for (i = 0; i < sk_PKCS12_SAFEBAG_num(bags); i++) {
217 if (!parse_bag(sk_PKCS12_SAFEBAG_value (bags, i),
218 pass, passlen, pkey, ocerts))
219 return 0;
220 }
221 return 1;
222}
223
224static int parse_bag(PKCS12_SAFEBAG *bag, const char *pass, int passlen,
225 EVP_PKEY **pkey, STACK_OF(X509) *ocerts)
226{
227 PKCS8_PRIV_KEY_INFO *p8;
228 X509 *x509;
229 ASN1_TYPE *attrib;
230 ASN1_BMPSTRING *fname = NULL;
231 ASN1_OCTET_STRING *lkid = NULL;
232
233 if ((attrib = PKCS12_get_attr (bag, NID_friendlyName)))
234 fname = attrib->value.bmpstring;
235
236 if ((attrib = PKCS12_get_attr (bag, NID_localKeyID)))
237 lkid = attrib->value.octet_string;
238
239 switch (M_PKCS12_bag_type(bag))
240 {
241 case NID_keyBag:
242 if (!pkey || *pkey)
243 return 1;
244 if (!(*pkey = EVP_PKCS82PKEY(bag->value.keybag)))
245 return 0;
246 break;
247
248 case NID_pkcs8ShroudedKeyBag:
249 if (!pkey || *pkey)
250 return 1;
251 if (!(p8 = PKCS12_decrypt_skey(bag, pass, passlen)))
252 return 0;
253 *pkey = EVP_PKCS82PKEY(p8);
254 PKCS8_PRIV_KEY_INFO_free(p8);
255 if (!(*pkey)) return 0;
256 break;
257
258 case NID_certBag:
259 if (M_PKCS12_cert_bag_type(bag) != NID_x509Certificate )
260 return 1;
261 if (!(x509 = PKCS12_certbag2x509(bag)))
262 return 0;
263 if(lkid && !X509_keyid_set1(x509, lkid->data, lkid->length))
264 {
265 X509_free(x509);
266 return 0;
267 }
268 if(fname) {
269 int len, r;
270 unsigned char *data;
271 len = ASN1_STRING_to_UTF8(&data, fname);
272 if(len > 0) {
273 r = X509_alias_set1(x509, data, len);
274 OPENSSL_free(data);
275 if (!r)
276 {
277 X509_free(x509);
278 return 0;
279 }
280 }
281 }
282
283 if(!sk_X509_push(ocerts, x509))
284 {
285 X509_free(x509);
286 return 0;
287 }
288
289 break;
290
291 case NID_safeContentsBag:
292 return parse_bags(bag->value.safes, pass, passlen,
293 pkey, ocerts);
294 break;
295
296 default:
297 return 1;
298 break;
299 }
300 return 1;
301}
302
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