3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
6 /* ====================================================================
7 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
35 * 6. Redistributions of any form whatsoever must retain the following
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com). This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
62 #include <openssl/pkcs12.h>
64 /* Simplified PKCS#12 routines */
66 static int parse_pk12(PKCS12 *p12, const char *pass, int passlen,
67 EVP_PKEY **pkey, STACK_OF(X509) *ocerts);
69 static int parse_bags(STACK_OF(PKCS12_SAFEBAG) *bags, const char *pass,
70 int passlen, EVP_PKEY **pkey, STACK_OF(X509) *ocerts);
72 static int parse_bag(PKCS12_SAFEBAG *bag, const char *pass, int passlen,
73 EVP_PKEY **pkey, STACK_OF(X509) *ocerts);
76 * Parse and decrypt a PKCS#12 structure returning user key, user cert and
77 * other (CA) certs. Note either ca should be NULL, *ca should be NULL, or it
78 * should point to a valid STACK structure. pkey and cert can be passed
82 int PKCS12_parse(PKCS12 *p12, const char *pass, EVP_PKEY **pkey, X509 **cert,
85 STACK_OF(X509) *ocerts = NULL;
87 /* Check for NULL PKCS12 structure */
90 PKCS12err(PKCS12_F_PKCS12_PARSE,
91 PKCS12_R_INVALID_NULL_PKCS12_POINTER);
103 * If password is zero length or NULL then try verifying both cases to
104 * determine which password is correct. The reason for this is that under
105 * PKCS#12 password based encryption no password and a zero length
106 * password are two different things...
109 if (!pass || !*pass) {
110 if (PKCS12_verify_mac(p12, NULL, 0))
112 else if (PKCS12_verify_mac(p12, "", 0))
115 PKCS12err(PKCS12_F_PKCS12_PARSE, PKCS12_R_MAC_VERIFY_FAILURE);
118 } else if (!PKCS12_verify_mac(p12, pass, -1)) {
119 PKCS12err(PKCS12_F_PKCS12_PARSE, PKCS12_R_MAC_VERIFY_FAILURE);
123 /* Allocate stack for other certificates */
124 ocerts = sk_X509_new_null();
127 PKCS12err(PKCS12_F_PKCS12_PARSE, ERR_R_MALLOC_FAILURE);
131 if (!parse_pk12(p12, pass, -1, pkey, ocerts)) {
132 PKCS12err(PKCS12_F_PKCS12_PARSE, PKCS12_R_PARSE_ERROR);
136 while ((x = sk_X509_pop(ocerts))) {
137 if (pkey && *pkey && cert && !*cert) {
139 if (X509_check_private_key(x, *pkey)) {
148 *ca = sk_X509_new_null();
151 if (!sk_X509_push(*ca, x))
160 sk_X509_pop_free(ocerts, X509_free);
167 EVP_PKEY_free(*pkey);
173 sk_X509_pop_free(ocerts, X509_free);
178 /* Parse the outer PKCS#12 structure */
180 static int parse_pk12(PKCS12 *p12, const char *pass, int passlen,
181 EVP_PKEY **pkey, STACK_OF(X509) *ocerts)
183 STACK_OF(PKCS7) *asafes;
184 STACK_OF(PKCS12_SAFEBAG) *bags;
188 if (!(asafes = PKCS12_unpack_authsafes(p12)))
190 for (i = 0; i < sk_PKCS7_num(asafes); i++) {
191 p7 = sk_PKCS7_value(asafes, i);
192 bagnid = OBJ_obj2nid(p7->type);
193 if (bagnid == NID_pkcs7_data) {
194 bags = PKCS12_unpack_p7data(p7);
195 } else if (bagnid == NID_pkcs7_encrypted) {
196 bags = PKCS12_unpack_p7encdata(p7, pass, passlen);
200 sk_PKCS7_pop_free(asafes, PKCS7_free);
203 if (!parse_bags(bags, pass, passlen, pkey, ocerts)) {
204 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
205 sk_PKCS7_pop_free(asafes, PKCS7_free);
208 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
210 sk_PKCS7_pop_free(asafes, PKCS7_free);
214 static int parse_bags(STACK_OF(PKCS12_SAFEBAG) *bags, const char *pass,
215 int passlen, EVP_PKEY **pkey, STACK_OF(X509) *ocerts)
218 for (i = 0; i < sk_PKCS12_SAFEBAG_num(bags); i++) {
219 if (!parse_bag(sk_PKCS12_SAFEBAG_value(bags, i),
220 pass, passlen, pkey, ocerts))
226 static int parse_bag(PKCS12_SAFEBAG *bag, const char *pass, int passlen,
227 EVP_PKEY **pkey, STACK_OF(X509) *ocerts)
229 PKCS8_PRIV_KEY_INFO *p8;
232 ASN1_BMPSTRING *fname = NULL;
233 ASN1_OCTET_STRING *lkid = NULL;
235 if ((attrib = PKCS12_get_attr(bag, NID_friendlyName)))
236 fname = attrib->value.bmpstring;
238 if ((attrib = PKCS12_get_attr(bag, NID_localKeyID)))
239 lkid = attrib->value.octet_string;
241 switch (M_PKCS12_bag_type(bag)) {
245 if (!(*pkey = EVP_PKCS82PKEY(bag->value.keybag)))
249 case NID_pkcs8ShroudedKeyBag:
252 if (!(p8 = PKCS12_decrypt_skey(bag, pass, passlen)))
254 *pkey = EVP_PKCS82PKEY(p8);
255 PKCS8_PRIV_KEY_INFO_free(p8);
261 if (M_PKCS12_cert_bag_type(bag) != NID_x509Certificate)
263 if (!(x509 = PKCS12_certbag2x509(bag)))
265 if (lkid && !X509_keyid_set1(x509, lkid->data, lkid->length)) {
272 len = ASN1_STRING_to_UTF8(&data, fname);
274 r = X509_alias_set1(x509, data, len);
283 if (!sk_X509_push(ocerts, x509)) {
290 case NID_safeContentsBag:
291 return parse_bags(bag->value.safes, pass, passlen, pkey, ocerts);