1 /* $OpenBSD: p12_kiss.c,v 1.16 2014/07/11 08:44:49 jsing Exp $ */
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/err.h>
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);
75 /* Parse and decrypt a PKCS#12 structure returning user key, user cert
76 * and other (CA) certs. Note either ca should be NULL, *ca should be NULL,
77 * or it should point to a valid STACK structure. pkey and cert can be
82 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);
102 /* If password is zero length or NULL then try verifying both cases
103 * to determine which password is correct. The reason for this is that
104 * under PKCS#12 password based encryption no password and a zero length
105 * password are two different things...
108 if (!pass || !*pass) {
109 if (PKCS12_verify_mac(p12, NULL, 0))
111 else if (PKCS12_verify_mac(p12, "", 0))
114 PKCS12err(PKCS12_F_PKCS12_PARSE,
115 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();
126 PKCS12err(PKCS12_F_PKCS12_PARSE, ERR_R_MALLOC_FAILURE);
130 if (!parse_pk12 (p12, pass, -1, pkey, ocerts)) {
131 PKCS12err(PKCS12_F_PKCS12_PARSE, PKCS12_R_PARSE_ERROR);
135 while ((x = sk_X509_pop(ocerts))) {
136 if (pkey && *pkey && cert && !*cert) {
137 if (X509_check_private_key(x, *pkey)) {
145 *ca = sk_X509_new_null();
148 if (!sk_X509_push(*ca, x))
156 sk_X509_pop_free(ocerts, X509_free);
162 EVP_PKEY_free(*pkey);
167 sk_X509_pop_free(ocerts, X509_free);
171 /* Parse the outer PKCS#12 structure */
174 parse_pk12(PKCS12 *p12, const char *pass, int passlen, EVP_PKEY **pkey,
175 STACK_OF(X509) *ocerts)
177 STACK_OF(PKCS7) *asafes;
178 STACK_OF(PKCS12_SAFEBAG) *bags;
182 if (!(asafes = PKCS12_unpack_authsafes (p12)))
184 for (i = 0; i < sk_PKCS7_num (asafes); i++) {
185 p7 = sk_PKCS7_value (asafes, i);
186 bagnid = OBJ_obj2nid (p7->type);
187 if (bagnid == NID_pkcs7_data) {
188 bags = PKCS12_unpack_p7data(p7);
189 } else if (bagnid == NID_pkcs7_encrypted) {
190 bags = PKCS12_unpack_p7encdata(p7, pass, passlen);
194 sk_PKCS7_pop_free(asafes, PKCS7_free);
197 if (!parse_bags(bags, pass, passlen, pkey, ocerts)) {
198 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
199 sk_PKCS7_pop_free(asafes, PKCS7_free);
202 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
204 sk_PKCS7_pop_free(asafes, PKCS7_free);
209 parse_bags(STACK_OF(PKCS12_SAFEBAG) *bags, const char *pass, int passlen,
210 EVP_PKEY **pkey, STACK_OF(X509) *ocerts)
214 for (i = 0; i < sk_PKCS12_SAFEBAG_num(bags); i++) {
215 if (!parse_bag(sk_PKCS12_SAFEBAG_value(bags, i), pass, passlen,
223 parse_bag(PKCS12_SAFEBAG *bag, const char *pass, int passlen, EVP_PKEY **pkey,
224 STACK_OF(X509) *ocerts)
226 PKCS8_PRIV_KEY_INFO *p8;
229 ASN1_BMPSTRING *fname = NULL;
230 ASN1_OCTET_STRING *lkid = NULL;
232 if ((attrib = PKCS12_get_attr (bag, NID_friendlyName)))
233 fname = attrib->value.bmpstring;
235 if ((attrib = PKCS12_get_attr (bag, NID_localKeyID)))
236 lkid = attrib->value.octet_string;
238 switch (M_PKCS12_bag_type(bag)) {
242 if (!(*pkey = EVP_PKCS82PKEY(bag->value.keybag)))
246 case NID_pkcs8ShroudedKeyBag:
249 if (!(p8 = PKCS12_decrypt_skey(bag, pass, passlen)))
251 *pkey = EVP_PKCS82PKEY(p8);
252 PKCS8_PRIV_KEY_INFO_free(p8);
258 if (M_PKCS12_cert_bag_type(bag) != NID_x509Certificate )
260 if (!(x509 = PKCS12_certbag2x509(bag)))
262 if (lkid && !X509_keyid_set1(x509, lkid->data, lkid->length)) {
269 len = ASN1_STRING_to_UTF8(&data, fname);
271 r = X509_alias_set1(x509, data, len);
280 if (!sk_X509_push(ocerts, x509)) {
287 case NID_safeContentsBag:
288 return parse_bags(bag->value.safes, pass, passlen,