Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcrypto/pkcs12/p12_npas.c	Lines:	0	83	0.0 %
Date:	2017-11-13	Branches:	0	52	0.0 %


/* $OpenBSD: p12_npas.c,v 1.12 2017/01/29 17:49:23 beck Exp $ */
/* 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) {
		PKCS12error(PKCS12_R_INVALID_NULL_PKCS12_POINTER);
		return 0;
	}

	/* Check the mac */

	if (!PKCS12_verify_mac(p12, oldpass, -1)) {
		PKCS12error(PKCS12_R_MAC_VERIFY_FAILURE);
		return 0;
	}

	if (!newpass_p12(p12, oldpass, newpass)) {
		PKCS12error(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 == NULL)
			goto err;
		if (!newpass_bags(bags, oldpass, newpass)) {
			sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
			goto err;
		}
		/* 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 == NULL)
			goto err;
		if (sk_PKCS7_push(newsafes, p7new) == 0)
			goto err;
	}
	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())) {
		p12->authsafes->d.data = p12_data_tmp;
		goto err;
	}
	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;

err:
	sk_PKCS7_pop_free(asafes, PKCS7_free);
	sk_PKCS7_pop_free(newsafes, PKCS7_free);
	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 (OBJ_obj2nid(bag->type) != 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;
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: p12_npas.c,v 1.12 2017/01/29 17:49:23 beck Exp $ */
2			/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3			* project 1999.
4			*/
5			/* ====================================================================
6			* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
7			*
8			* Redistribution and use in source and binary forms, with or without
9			* modification, are permitted provided that the following conditions
10			* are met:
11			*
12			* 1. Redistributions of source code must retain the above copyright
13			* notice, this list of conditions and the following disclaimer.
14			*
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
18			* distribution.
19			*
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/)"
24			*
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.
29			*
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.
33			*
34			* 6. Redistributions of any form whatsoever must retain the following
35			* acknowledgment:
36			* "This product includes software developed by the OpenSSL Project
37			* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38			*
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			* ====================================================================
52			*
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).
56			*
57			*/
58
59			#include <stdio.h>
60			#include <stdlib.h>
61			#include <string.h>
62			#include <openssl/pem.h>
63			#include <openssl/err.h>
64			#include <openssl/pkcs12.h>
65
66			/* PKCS#12 password change routine */
67
68			static int newpass_p12(PKCS12 p12, char oldpass, char *newpass);
69			static int newpass_bags(STACK_OF(PKCS12_SAFEBAG) bags, char oldpass,
70			char *newpass);
71			static int newpass_bag(PKCS12_SAFEBAG bag, char oldpass, char *newpass);
72			static int alg_get(X509_ALGOR alg, int pnid, int piter, int psaltlen);
73
74			/*
75			* Change the password on a PKCS#12 structure.
76			*/
77
78			int
79			PKCS12_newpass(PKCS12 p12, char oldpass, char *newpass)
80			{
81			/* Check for NULL PKCS12 structure */
82
83			if (!p12) {
84			PKCS12error(PKCS12_R_INVALID_NULL_PKCS12_POINTER);
85			return 0;
86			}
87
88			/* Check the mac */
89
90			if (!PKCS12_verify_mac(p12, oldpass, -1)) {
91			PKCS12error(PKCS12_R_MAC_VERIFY_FAILURE);
92			return 0;
93			}
94
95			if (!newpass_p12(p12, oldpass, newpass)) {
96			PKCS12error(PKCS12_R_PARSE_ERROR);
97			return 0;
98			}
99
100			return 1;
101			}
102
103			/* Parse the outer PKCS#12 structure */
104
105			static int
106			newpass_p12(PKCS12 p12, char oldpass, char *newpass)
107			{
108			STACK_OF(PKCS7) asafes, newsafes;
109			STACK_OF(PKCS12_SAFEBAG) *bags;
110			int i, bagnid, pbe_nid = 0, pbe_iter = 0, pbe_saltlen = 0;
111			PKCS7 p7, p7new;
112			ASN1_OCTET_STRING p12_data_tmp = NULL, macnew = NULL;
113			unsigned char mac[EVP_MAX_MD_SIZE];
114			unsigned int maclen;
115
116			if (!(asafes = PKCS12_unpack_authsafes(p12)))
117			return 0;
118			if (!(newsafes = sk_PKCS7_new_null()))
119			return 0;
120			for (i = 0; i < sk_PKCS7_num(asafes); i++) {
121			p7 = sk_PKCS7_value(asafes, i);
122			bagnid = OBJ_obj2nid(p7->type);
123			if (bagnid == NID_pkcs7_data) {
124			bags = PKCS12_unpack_p7data(p7);
125			} else if (bagnid == NID_pkcs7_encrypted) {
126			bags = PKCS12_unpack_p7encdata(p7, oldpass, -1);
127			if (!alg_get(p7->d.encrypted->enc_data->algorithm,
128			&pbe_nid, &pbe_iter, &pbe_saltlen)) {
129			sk_PKCS12_SAFEBAG_pop_free(bags,
130			PKCS12_SAFEBAG_free);
131			bags = NULL;
132			}
133			} else
134			continue;
135			if (bags == NULL)
136			goto err;
137			if (!newpass_bags(bags, oldpass, newpass)) {
138			sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
139			goto err;
140			}
141			/* Repack bag in same form with new password */
142			if (bagnid == NID_pkcs7_data)
143			p7new = PKCS12_pack_p7data(bags);
144			else
145			p7new = PKCS12_pack_p7encdata(pbe_nid, newpass, -1,
146			NULL, pbe_saltlen, pbe_iter, bags);
147			sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
148			if (p7new == NULL)
149			goto err;
150			if (sk_PKCS7_push(newsafes, p7new) == 0)
151			goto err;
152			}
153			sk_PKCS7_pop_free(asafes, PKCS7_free);
154
155			/* Repack safe: save old safe in case of error */
156
157			p12_data_tmp = p12->authsafes->d.data;
158			if (!(p12->authsafes->d.data = ASN1_OCTET_STRING_new())) {
159			p12->authsafes->d.data = p12_data_tmp;
160			goto err;
161			}
162			if (!PKCS12_pack_authsafes(p12, newsafes))
163			goto saferr;
164
165			if (!PKCS12_gen_mac(p12, newpass, -1, mac, &maclen))
166			goto saferr;
167			if (!(macnew = ASN1_OCTET_STRING_new()))
168			goto saferr;
169			if (!ASN1_OCTET_STRING_set(macnew, mac, maclen))
170			goto saferr;
171			ASN1_OCTET_STRING_free(p12->mac->dinfo->digest);
172			p12->mac->dinfo->digest = macnew;
173			ASN1_OCTET_STRING_free(p12_data_tmp);
174
175			return 1;
176
177			saferr:
178			/* Restore old safe */
179			ASN1_OCTET_STRING_free(p12->authsafes->d.data);
180			ASN1_OCTET_STRING_free(macnew);
181			p12->authsafes->d.data = p12_data_tmp;
182			return 0;
183
184			err:
185			sk_PKCS7_pop_free(asafes, PKCS7_free);
186			sk_PKCS7_pop_free(newsafes, PKCS7_free);
187			return 0;
188			}
189
190
191			static int
192			newpass_bags(STACK_OF(PKCS12_SAFEBAG) bags, char oldpass, char *newpass)
193			{
194			int i;
195
196			for (i = 0; i < sk_PKCS12_SAFEBAG_num(bags); i++) {
197			if (!newpass_bag(sk_PKCS12_SAFEBAG_value(bags, i),
198			oldpass, newpass))
199			return 0;
200			}
201			return 1;
202			}
203
204			/* Change password of safebag: only needs handle shrouded keybags */
205
206			static int
207			newpass_bag(PKCS12_SAFEBAG bag, char oldpass, char *newpass)
208			{
209			PKCS8_PRIV_KEY_INFO *p8;
210			X509_SIG *p8new;
211			int p8_nid, p8_saltlen, p8_iter;
212
213			if (OBJ_obj2nid(bag->type) != NID_pkcs8ShroudedKeyBag)
214			return 1;
215
216			if (!(p8 = PKCS8_decrypt(bag->value.shkeybag, oldpass, -1)))
217			return 0;
218			if (!alg_get(bag->value.shkeybag->algor, &p8_nid, &p8_iter,
219			&p8_saltlen))
220			return 0;
221			if (!(p8new = PKCS8_encrypt(p8_nid, NULL, newpass, -1, NULL, p8_saltlen,
222			p8_iter, p8))) return 0;
223			X509_SIG_free(bag->value.shkeybag);
224			bag->value.shkeybag = p8new;
225			return 1;
226			}
227
228			static int
229			alg_get(X509_ALGOR alg, int pnid, int piter, int psaltlen)
230			{
231			PBEPARAM *pbe;
232			const unsigned char *p;
233
234			p = alg->parameter->value.sequence->data;
235			pbe = d2i_PBEPARAM(NULL, &p, alg->parameter->value.sequence->length);
236			if (!pbe)
237			return 0;
238			*pnid = OBJ_obj2nid(alg->algorithm);
239			*piter = ASN1_INTEGER_get(pbe->iter);
240			*psaltlen = pbe->salt->length;
241			PBEPARAM_free(pbe);
242			return 1;
243			}