mirror of
https://github.com/oxen-io/session-android.git
synced 2024-12-23 16:37:30 +00:00
226 lines
7.3 KiB
C
226 lines
7.3 KiB
C
/* p12_npas.c */
|
|
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
|
|
* project 1999.
|
|
*/
|
|
/* ====================================================================
|
|
* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* 3. All advertising materials mentioning features or use of this
|
|
* software must display the following acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
|
|
*
|
|
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
|
|
* endorse or promote products derived from this software without
|
|
* prior written permission. For written permission, please contact
|
|
* licensing@OpenSSL.org.
|
|
*
|
|
* 5. Products derived from this software may not be called "OpenSSL"
|
|
* nor may "OpenSSL" appear in their names without prior written
|
|
* permission of the OpenSSL Project.
|
|
*
|
|
* 6. Redistributions of any form whatsoever must retain the following
|
|
* acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
|
|
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
|
|
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
|
* OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
* ====================================================================
|
|
*
|
|
* This product includes cryptographic software written by Eric Young
|
|
* (eay@cryptsoft.com). This product includes software written by Tim
|
|
* Hudson (tjh@cryptsoft.com).
|
|
*
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <openssl/pem.h>
|
|
#include <openssl/err.h>
|
|
#include <openssl/pkcs12.h>
|
|
|
|
/* PKCS#12 password change routine */
|
|
|
|
static int newpass_p12(PKCS12 *p12, char *oldpass, char *newpass);
|
|
static int newpass_bags(STACK_OF(PKCS12_SAFEBAG) *bags, char *oldpass,
|
|
char *newpass);
|
|
static int newpass_bag(PKCS12_SAFEBAG *bag, char *oldpass, char *newpass);
|
|
static int alg_get(X509_ALGOR *alg, int *pnid, int *piter, int *psaltlen);
|
|
|
|
/*
|
|
* Change the password on a PKCS#12 structure.
|
|
*/
|
|
|
|
int PKCS12_newpass(PKCS12 *p12, char *oldpass, char *newpass)
|
|
{
|
|
/* Check for NULL PKCS12 structure */
|
|
|
|
if(!p12) {
|
|
PKCS12err(PKCS12_F_PKCS12_NEWPASS,PKCS12_R_INVALID_NULL_PKCS12_POINTER);
|
|
return 0;
|
|
}
|
|
|
|
/* Check the mac */
|
|
|
|
if (!PKCS12_verify_mac(p12, oldpass, -1)) {
|
|
PKCS12err(PKCS12_F_PKCS12_NEWPASS,PKCS12_R_MAC_VERIFY_FAILURE);
|
|
return 0;
|
|
}
|
|
|
|
if (!newpass_p12(p12, oldpass, newpass)) {
|
|
PKCS12err(PKCS12_F_PKCS12_NEWPASS,PKCS12_R_PARSE_ERROR);
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* Parse the outer PKCS#12 structure */
|
|
|
|
static int newpass_p12(PKCS12 *p12, char *oldpass, char *newpass)
|
|
{
|
|
STACK_OF(PKCS7) *asafes, *newsafes;
|
|
STACK_OF(PKCS12_SAFEBAG) *bags;
|
|
int i, bagnid, pbe_nid = 0, pbe_iter = 0, pbe_saltlen = 0;
|
|
PKCS7 *p7, *p7new;
|
|
ASN1_OCTET_STRING *p12_data_tmp = NULL, *macnew = NULL;
|
|
unsigned char mac[EVP_MAX_MD_SIZE];
|
|
unsigned int maclen;
|
|
|
|
if (!(asafes = PKCS12_unpack_authsafes(p12))) return 0;
|
|
if(!(newsafes = sk_PKCS7_new_null())) return 0;
|
|
for (i = 0; i < sk_PKCS7_num (asafes); i++) {
|
|
p7 = sk_PKCS7_value(asafes, i);
|
|
bagnid = OBJ_obj2nid(p7->type);
|
|
if (bagnid == NID_pkcs7_data) {
|
|
bags = PKCS12_unpack_p7data(p7);
|
|
} else if (bagnid == NID_pkcs7_encrypted) {
|
|
bags = PKCS12_unpack_p7encdata(p7, oldpass, -1);
|
|
if (!alg_get(p7->d.encrypted->enc_data->algorithm,
|
|
&pbe_nid, &pbe_iter, &pbe_saltlen))
|
|
{
|
|
sk_PKCS12_SAFEBAG_pop_free(bags,
|
|
PKCS12_SAFEBAG_free);
|
|
bags = NULL;
|
|
}
|
|
} else continue;
|
|
if (!bags) {
|
|
sk_PKCS7_pop_free(asafes, PKCS7_free);
|
|
return 0;
|
|
}
|
|
if (!newpass_bags(bags, oldpass, newpass)) {
|
|
sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
|
|
sk_PKCS7_pop_free(asafes, PKCS7_free);
|
|
return 0;
|
|
}
|
|
/* Repack bag in same form with new password */
|
|
if (bagnid == NID_pkcs7_data) p7new = PKCS12_pack_p7data(bags);
|
|
else p7new = PKCS12_pack_p7encdata(pbe_nid, newpass, -1, NULL,
|
|
pbe_saltlen, pbe_iter, bags);
|
|
sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
|
|
if(!p7new) {
|
|
sk_PKCS7_pop_free(asafes, PKCS7_free);
|
|
return 0;
|
|
}
|
|
sk_PKCS7_push(newsafes, p7new);
|
|
}
|
|
sk_PKCS7_pop_free(asafes, PKCS7_free);
|
|
|
|
/* Repack safe: save old safe in case of error */
|
|
|
|
p12_data_tmp = p12->authsafes->d.data;
|
|
if(!(p12->authsafes->d.data = ASN1_OCTET_STRING_new())) goto saferr;
|
|
if(!PKCS12_pack_authsafes(p12, newsafes)) goto saferr;
|
|
|
|
if(!PKCS12_gen_mac(p12, newpass, -1, mac, &maclen)) goto saferr;
|
|
if(!(macnew = ASN1_OCTET_STRING_new())) goto saferr;
|
|
if(!ASN1_OCTET_STRING_set(macnew, mac, maclen)) goto saferr;
|
|
ASN1_OCTET_STRING_free(p12->mac->dinfo->digest);
|
|
p12->mac->dinfo->digest = macnew;
|
|
ASN1_OCTET_STRING_free(p12_data_tmp);
|
|
|
|
return 1;
|
|
|
|
saferr:
|
|
/* Restore old safe */
|
|
ASN1_OCTET_STRING_free(p12->authsafes->d.data);
|
|
ASN1_OCTET_STRING_free(macnew);
|
|
p12->authsafes->d.data = p12_data_tmp;
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
static int newpass_bags(STACK_OF(PKCS12_SAFEBAG) *bags, char *oldpass,
|
|
char *newpass)
|
|
{
|
|
int i;
|
|
for (i = 0; i < sk_PKCS12_SAFEBAG_num(bags); i++) {
|
|
if (!newpass_bag(sk_PKCS12_SAFEBAG_value(bags, i),
|
|
oldpass, newpass))
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* Change password of safebag: only needs handle shrouded keybags */
|
|
|
|
static int newpass_bag(PKCS12_SAFEBAG *bag, char *oldpass, char *newpass)
|
|
{
|
|
PKCS8_PRIV_KEY_INFO *p8;
|
|
X509_SIG *p8new;
|
|
int p8_nid, p8_saltlen, p8_iter;
|
|
|
|
if(M_PKCS12_bag_type(bag) != NID_pkcs8ShroudedKeyBag) return 1;
|
|
|
|
if (!(p8 = PKCS8_decrypt(bag->value.shkeybag, oldpass, -1))) return 0;
|
|
if (!alg_get(bag->value.shkeybag->algor, &p8_nid, &p8_iter,
|
|
&p8_saltlen))
|
|
return 0;
|
|
if(!(p8new = PKCS8_encrypt(p8_nid, NULL, newpass, -1, NULL, p8_saltlen,
|
|
p8_iter, p8))) return 0;
|
|
X509_SIG_free(bag->value.shkeybag);
|
|
bag->value.shkeybag = p8new;
|
|
return 1;
|
|
}
|
|
|
|
static int alg_get(X509_ALGOR *alg, int *pnid, int *piter, int *psaltlen)
|
|
{
|
|
PBEPARAM *pbe;
|
|
const unsigned char *p;
|
|
|
|
p = alg->parameter->value.sequence->data;
|
|
pbe = d2i_PBEPARAM(NULL, &p, alg->parameter->value.sequence->length);
|
|
if (!pbe)
|
|
return 0;
|
|
*pnid = OBJ_obj2nid(alg->algorithm);
|
|
*piter = ASN1_INTEGER_get(pbe->iter);
|
|
*psaltlen = pbe->salt->length;
|
|
PBEPARAM_free(pbe);
|
|
return 1;
|
|
}
|