2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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 * ====================================================================
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).
61 #include <openssl/pkcs12.h>
63 /* Simplified PKCS#12 routines */
65 static int parse_pk12( PKCS12 *p12, const char *pass, int passlen,
66 EVP_PKEY **pkey, STACK_OF(X509) *ocerts);
68 static int parse_bags( STACK_OF(PKCS12_SAFEBAG) *bags, const char *pass,
69 int passlen, EVP_PKEY **pkey, STACK_OF(X509) *ocerts);
71 static int parse_bag( PKCS12_SAFEBAG *bag, const char *pass, int passlen,
72 EVP_PKEY **pkey, STACK_OF(X509) *ocerts);
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
80 int PKCS12_parse(PKCS12 *p12, const char *pass, EVP_PKEY **pkey, X509 **cert,
83 STACK_OF(X509) *ocerts = NULL;
85 /* Check for NULL PKCS12 structure */
89 PKCS12err(PKCS12_F_PKCS12_PARSE,PKCS12_R_INVALID_NULL_PKCS12_POINTER);
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...
106 if(!pass || !*pass) {
107 if(PKCS12_verify_mac(p12, NULL, 0)) pass = NULL;
108 else if(PKCS12_verify_mac(p12, "", 0)) pass = "";
110 PKCS12err(PKCS12_F_PKCS12_PARSE,PKCS12_R_MAC_VERIFY_FAILURE);
113 } else if (!PKCS12_verify_mac(p12, pass, -1)) {
114 PKCS12err(PKCS12_F_PKCS12_PARSE,PKCS12_R_MAC_VERIFY_FAILURE);
118 /* Allocate stack for other certificates */
119 ocerts = sk_X509_new_null();
123 PKCS12err(PKCS12_F_PKCS12_PARSE,ERR_R_MALLOC_FAILURE);
127 if (!parse_pk12 (p12, pass, -1, pkey, ocerts))
129 PKCS12err(PKCS12_F_PKCS12_PARSE,PKCS12_R_PARSE_ERROR);
133 while ((x = sk_X509_pop(ocerts)))
135 if (pkey && *pkey && cert && !*cert)
137 if (X509_check_private_key(x, *pkey))
147 *ca = sk_X509_new_null();
150 if (!sk_X509_push(*ca, x))
159 sk_X509_pop_free(ocerts, X509_free);
166 EVP_PKEY_free(*pkey);
172 sk_X509_pop_free(ocerts, X509_free);
177 /* Parse the outer PKCS#12 structure */
179 static int parse_pk12(PKCS12 *p12, const char *pass, int passlen,
180 EVP_PKEY **pkey, STACK_OF(X509) *ocerts)
182 STACK_OF(PKCS7) *asafes;
183 STACK_OF(PKCS12_SAFEBAG) *bags;
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);
197 sk_PKCS7_pop_free(asafes, PKCS7_free);
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);
205 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
207 sk_PKCS7_pop_free(asafes, PKCS7_free);
212 static int parse_bags(STACK_OF(PKCS12_SAFEBAG) *bags, const char *pass,
213 int passlen, EVP_PKEY **pkey, STACK_OF(X509) *ocerts)
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))
224 static int parse_bag(PKCS12_SAFEBAG *bag, const char *pass, int passlen,
225 EVP_PKEY **pkey, STACK_OF(X509) *ocerts)
227 PKCS8_PRIV_KEY_INFO *p8;
230 ASN1_BMPSTRING *fname = NULL;
231 ASN1_OCTET_STRING *lkid = NULL;
233 if ((attrib = PKCS12_get_attr (bag, NID_friendlyName)))
234 fname = attrib->value.bmpstring;
236 if ((attrib = PKCS12_get_attr (bag, NID_localKeyID)))
237 lkid = attrib->value.octet_string;
239 switch (M_PKCS12_bag_type(bag))
244 if (!(*pkey = EVP_PKCS82PKEY(bag->value.keybag)))
248 case NID_pkcs8ShroudedKeyBag:
251 if (!(p8 = PKCS12_decrypt_skey(bag, pass, passlen)))
253 *pkey = EVP_PKCS82PKEY(p8);
254 PKCS8_PRIV_KEY_INFO_free(p8);
255 if (!(*pkey)) return 0;
259 if (M_PKCS12_cert_bag_type(bag) != NID_x509Certificate )
261 if (!(x509 = PKCS12_certbag2x509(bag)))
263 if(lkid && !X509_keyid_set1(x509, lkid->data, lkid->length))
271 len = ASN1_STRING_to_UTF8(&data, fname);
273 r = X509_alias_set1(x509, data, len);
283 if(!sk_X509_push(ocerts, x509))
291 case NID_safeContentsBag:
292 return parse_bags(bag->value.safes, pass, passlen,