Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcrypto/crypto/../../libssl/src/crypto/pkcs12/p12_npas.c	Lines:	0	90	0.0 %
Date:	2016-12-06	Branches:	0	52	0.0 %


/* $OpenBSD: p12_npas.c,v 1.10 2015/02/14 14:18:58 miod 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) {
		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 == 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 (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;
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: p12_npas.c,v 1.10 2015/02/14 14:18:58 miod 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			PKCS12err(PKCS12_F_PKCS12_NEWPASS,
85			PKCS12_R_INVALID_NULL_PKCS12_POINTER);
86			return 0;
87			}
88
89			/* Check the mac */
90
91			if (!PKCS12_verify_mac(p12, oldpass, -1)) {
92			PKCS12err(PKCS12_F_PKCS12_NEWPASS, PKCS12_R_MAC_VERIFY_FAILURE);
93			return 0;
94			}
95
96			if (!newpass_p12(p12, oldpass, newpass)) {
97			PKCS12err(PKCS12_F_PKCS12_NEWPASS, PKCS12_R_PARSE_ERROR);
98			return 0;
99			}
100
101			return 1;
102			}
103
104			/* Parse the outer PKCS#12 structure */
105
106			static int
107			newpass_p12(PKCS12 p12, char oldpass, char *newpass)
108			{
109			STACK_OF(PKCS7) asafes, newsafes;
110			STACK_OF(PKCS12_SAFEBAG) *bags;
111			int i, bagnid, pbe_nid = 0, pbe_iter = 0, pbe_saltlen = 0;
112			PKCS7 p7, p7new;
113			ASN1_OCTET_STRING p12_data_tmp = NULL, macnew = NULL;
114			unsigned char mac[EVP_MAX_MD_SIZE];
115			unsigned int maclen;
116
117			if (!(asafes = PKCS12_unpack_authsafes(p12)))
118			return 0;
119			if (!(newsafes = sk_PKCS7_new_null()))
120			return 0;
121			for (i = 0; i < sk_PKCS7_num(asafes); i++) {
122			p7 = sk_PKCS7_value(asafes, i);
123			bagnid = OBJ_obj2nid(p7->type);
124			if (bagnid == NID_pkcs7_data) {
125			bags = PKCS12_unpack_p7data(p7);
126			} else if (bagnid == NID_pkcs7_encrypted) {
127			bags = PKCS12_unpack_p7encdata(p7, oldpass, -1);
128			if (!alg_get(p7->d.encrypted->enc_data->algorithm,
129			&pbe_nid, &pbe_iter, &pbe_saltlen)) {
130			sk_PKCS12_SAFEBAG_pop_free(bags,
131			PKCS12_SAFEBAG_free);
132			bags = NULL;
133			}
134			} else
135			continue;
136			if (bags == NULL)
137			goto err;
138			if (!newpass_bags(bags, oldpass, newpass)) {
139			sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
140			goto err;
141			}
142			/* Repack bag in same form with new password */
143			if (bagnid == NID_pkcs7_data)
144			p7new = PKCS12_pack_p7data(bags);
145			else
146			p7new = PKCS12_pack_p7encdata(pbe_nid, newpass, -1,
147			NULL, pbe_saltlen, pbe_iter, bags);
148			sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
149			if (p7new == NULL)
150			goto err;
151			if (sk_PKCS7_push(newsafes, p7new) == 0)
152			goto err;
153			}
154			sk_PKCS7_pop_free(asafes, PKCS7_free);
155
156			/* Repack safe: save old safe in case of error */
157
158			p12_data_tmp = p12->authsafes->d.data;
159			if (!(p12->authsafes->d.data = ASN1_OCTET_STRING_new())) {
160			p12->authsafes->d.data = p12_data_tmp;
161			goto err;
162			}
163			if (!PKCS12_pack_authsafes(p12, newsafes))
164			goto saferr;
165
166			if (!PKCS12_gen_mac(p12, newpass, -1, mac, &maclen))
167			goto saferr;
168			if (!(macnew = ASN1_OCTET_STRING_new()))
169			goto saferr;
170			if (!ASN1_OCTET_STRING_set(macnew, mac, maclen))
171			goto saferr;
172			ASN1_OCTET_STRING_free(p12->mac->dinfo->digest);
173			p12->mac->dinfo->digest = macnew;
174			ASN1_OCTET_STRING_free(p12_data_tmp);
175
176			return 1;
177
178			saferr:
179			/* Restore old safe */
180			ASN1_OCTET_STRING_free(p12->authsafes->d.data);
181			ASN1_OCTET_STRING_free(macnew);
182			p12->authsafes->d.data = p12_data_tmp;
183			return 0;
184
185			err:
186			sk_PKCS7_pop_free(asafes, PKCS7_free);
187			sk_PKCS7_pop_free(newsafes, PKCS7_free);
188			return 0;
189			}
190
191
192			static int
193			newpass_bags(STACK_OF(PKCS12_SAFEBAG) bags, char oldpass, char *newpass)
194			{
195			int i;
196
197			for (i = 0; i < sk_PKCS12_SAFEBAG_num(bags); i++) {
198			if (!newpass_bag(sk_PKCS12_SAFEBAG_value(bags, i),
199			oldpass, newpass))
200			return 0;
201			}
202			return 1;
203			}
204
205			/* Change password of safebag: only needs handle shrouded keybags */
206
207			static int
208			newpass_bag(PKCS12_SAFEBAG bag, char oldpass, char *newpass)
209			{
210			PKCS8_PRIV_KEY_INFO *p8;
211			X509_SIG *p8new;
212			int p8_nid, p8_saltlen, p8_iter;
213
214			if (M_PKCS12_bag_type(bag) != NID_pkcs8ShroudedKeyBag)
215			return 1;
216
217			if (!(p8 = PKCS8_decrypt(bag->value.shkeybag, oldpass, -1)))
218			return 0;
219			if (!alg_get(bag->value.shkeybag->algor, &p8_nid, &p8_iter,
220			&p8_saltlen))
221			return 0;
222			if (!(p8new = PKCS8_encrypt(p8_nid, NULL, newpass, -1, NULL, p8_saltlen,
223			p8_iter, p8))) return 0;
224			X509_SIG_free(bag->value.shkeybag);
225			bag->value.shkeybag = p8new;
226			return 1;
227			}
228
229			static int
230			alg_get(X509_ALGOR alg, int pnid, int piter, int psaltlen)
231			{
232			PBEPARAM *pbe;
233			const unsigned char *p;
234
235			p = alg->parameter->value.sequence->data;
236			pbe = d2i_PBEPARAM(NULL, &p, alg->parameter->value.sequence->length);
237			if (!pbe)
238			return 0;
239			*pnid = OBJ_obj2nid(alg->algorithm);
240			*piter = ASN1_INTEGER_get(pbe->iter);
241			*psaltlen = pbe->salt->length;
242			PBEPARAM_free(pbe);
243			return 1;
244			}