2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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).
62 #include <openssl/pem.h>
63 #include <openssl/err.h>
64 #include <openssl/pkcs12.h>
66 /* PKCS#12 password change routine */
68 static int newpass_p12(PKCS12 *p12, char *oldpass, char *newpass);
69 static int newpass_bags(STACK *bags, char *oldpass, char *newpass);
70 static int newpass_bag(PKCS12_SAFEBAG *bag, char *oldpass, char *newpass);
71 static int alg_get(X509_ALGOR *alg, int *pnid, int *piter, int *psaltlen);
74 * Change the password on a PKCS#12 structure.
77 int PKCS12_newpass(PKCS12 *p12, char *oldpass, char *newpass)
80 /* Check for NULL PKCS12 structure */
83 PKCS12err(PKCS12_F_PKCS12_NEWPASS,PKCS12_R_INVALID_NULL_PKCS12_POINTER);
89 if (!PKCS12_verify_mac(p12, oldpass, -1)) {
90 PKCS12err(PKCS12_F_PKCS12_NEWPASS,PKCS12_R_MAC_VERIFY_FAILURE);
94 if (!newpass_p12(p12, oldpass, newpass)) {
95 PKCS12err(PKCS12_F_PKCS12_NEWPASS,PKCS12_R_PARSE_ERROR);
103 /* Parse the outer PKCS#12 structure */
105 static int newpass_p12(PKCS12 *p12, char *oldpass, char *newpass)
107 STACK *asafes, *newsafes, *bags;
108 int i, bagnid, pbe_nid, pbe_iter, pbe_saltlen;
110 ASN1_OCTET_STRING *p12_data_tmp = NULL, *macnew = NULL;
111 unsigned char mac[EVP_MAX_MD_SIZE];
113 if (!(asafes = M_PKCS12_unpack_authsafes(p12))) return 0;
114 if(!(newsafes = sk_new(NULL))) return 0;
115 for (i = 0; i < sk_num (asafes); i++) {
116 p7 = (PKCS7 *) sk_value(asafes, i);
117 bagnid = OBJ_obj2nid(p7->type);
118 if (bagnid == NID_pkcs7_data) {
119 bags = M_PKCS12_unpack_p7data(p7);
120 } else if (bagnid == NID_pkcs7_encrypted) {
121 bags = M_PKCS12_unpack_p7encdata(p7, oldpass, -1);
122 alg_get(p7->d.encrypted->enc_data->algorithm,
123 &pbe_nid, &pbe_iter, &pbe_saltlen);
126 sk_pop_free(asafes, (void(*)(void *)) PKCS7_free);
129 if (!newpass_bags(bags, oldpass, newpass)) {
130 sk_pop_free(bags, (void(*)(void *)) PKCS12_SAFEBAG_free);
131 sk_pop_free(asafes, (void(*)(void *)) PKCS7_free);
134 /* Repack bag in same form with new password */
135 if (bagnid == NID_pkcs7_data) p7new = PKCS12_pack_p7data(bags);
136 else p7new = PKCS12_pack_p7encdata(pbe_nid, newpass, -1, NULL,
137 pbe_saltlen, pbe_iter, bags);
138 sk_pop_free(bags, (void(*)(void *)) PKCS12_SAFEBAG_free);
140 sk_pop_free(asafes, (void(*)(void *)) PKCS7_free);
143 sk_push(newsafes, (char *)p7new);
145 sk_pop_free(asafes, (void(*)(void *)) PKCS7_free);
147 /* Repack safe: save old safe in case of error */
149 p12_data_tmp = p12->authsafes->d.data;
150 if(!(p12->authsafes->d.data = ASN1_OCTET_STRING_new())) goto saferr;
151 if(!M_PKCS12_pack_authsafes(p12, newsafes)) goto saferr;
153 if(!PKCS12_gen_mac(p12, newpass, -1, mac, &maclen)) goto saferr;
154 if(!(macnew = ASN1_OCTET_STRING_new())) goto saferr;
155 if(!ASN1_OCTET_STRING_set(macnew, mac, maclen)) goto saferr;
156 ASN1_OCTET_STRING_free(p12->mac->dinfo->digest);
157 p12->mac->dinfo->digest = macnew;
158 ASN1_OCTET_STRING_free(p12_data_tmp);
163 /* Restore old safe */
164 ASN1_OCTET_STRING_free(p12->authsafes->d.data);
165 ASN1_OCTET_STRING_free(macnew);
166 p12->authsafes->d.data = p12_data_tmp;
172 static int newpass_bags(STACK *bags, char *oldpass, char *newpass)
175 for (i = 0; i < sk_num(bags); i++) {
176 if (!newpass_bag((PKCS12_SAFEBAG *)sk_value(bags, i),
177 oldpass, newpass)) return 0;
182 /* Change password of safebag: only needs handle shrouded keybags */
184 static int newpass_bag(PKCS12_SAFEBAG *bag, char *oldpass, char *newpass)
186 PKCS8_PRIV_KEY_INFO *p8;
188 int p8_nid, p8_saltlen, p8_iter;
190 if(M_PKCS12_bag_type(bag) != NID_pkcs8ShroudedKeyBag) return 1;
192 if (!(p8 = M_PKCS12_decrypt_skey(bag, oldpass, -1))) return 0;
193 alg_get(bag->value.shkeybag->algor, &p8_nid, &p8_iter, &p8_saltlen);
194 if(!(p8new = PKCS8_encrypt(p8_nid, NULL, newpass, -1, NULL, p8_saltlen,
195 p8_iter, p8))) return 0;
196 X509_SIG_free(bag->value.shkeybag);
197 bag->value.shkeybag = p8new;
201 static int alg_get(X509_ALGOR *alg, int *pnid, int *piter, int *psaltlen)
205 p = alg->parameter->value.sequence->data;
206 pbe = d2i_PBEPARAM(NULL, &p, alg->parameter->value.sequence->length);
207 *pnid = OBJ_obj2nid(alg->algorithm);
208 *piter = ASN1_INTEGER_get(pbe->iter);
209 *psaltlen = pbe->salt->length;