fips_dsa_lib.c revision 225736 
1/* fips_dsa_lib.c */
2/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 2007.
4 */
5/* ====================================================================
6 * Copyright (c) 2007 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 <string.h>
60#include <openssl/dsa.h>
61#include <openssl/bn.h>
62
63/* Minimal FIPS versions of FIPS_dsa_new() and FIPS_dsa_free: to
64 * reduce external dependencies.
65 */
66
67DSA *FIPS_dsa_new(void)
68	{
69	DSA *ret;
70	ret = OPENSSL_malloc(sizeof(DSA));
71	if (!ret)
72		return NULL;
73	memset(ret, 0, sizeof(DSA));
74	ret->meth = DSA_OpenSSL();
75	if (ret->meth->init)
76		ret->meth->init(ret);
77	return ret;
78	}
79
80void FIPS_dsa_free(DSA *r)
81	{
82	if (!r)
83		return;
84	if (r->meth->finish)
85		r->meth->finish(r);
86	if (r->p != NULL) BN_clear_free(r->p);
87	if (r->q != NULL) BN_clear_free(r->q);
88	if (r->g != NULL) BN_clear_free(r->g);
89	if (r->pub_key != NULL) BN_clear_free(r->pub_key);
90	if (r->priv_key != NULL) BN_clear_free(r->priv_key);
91	if (r->kinv != NULL) BN_clear_free(r->kinv);
92	if (r->r != NULL) BN_clear_free(r->r);
93	OPENSSL_free(r);
94	}
95
96