ecs_locl.h revision 23b9568fd705172c870175f42556ae21861da399 
1/* crypto/ecdsa/ecs_locl.h */
2/*
3 * Written by Nils Larsch for the OpenSSL project
4 */
5/* ====================================================================
6 * Copyright (c) 2000-2005 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#ifndef HEADER_ECS_LOCL_H
60#define HEADER_ECS_LOCL_H
61
62#include <openssl/ecdsa.h>
63
64#ifdef  __cplusplus
65extern "C" {
66#endif
67
68struct ecdsa_method
69	{
70	const char *name;
71	ECDSA_SIG *(*ecdsa_do_sign)(const unsigned char *dgst, int dgst_len,
72			const BIGNUM *inv, const BIGNUM *rp, EC_KEY *eckey);
73	int (*ecdsa_sign_setup)(EC_KEY *eckey, BN_CTX *ctx,
74				BIGNUM **kinv, BIGNUM **r,
75				const unsigned char *dgst, int dlen);
76	int (*ecdsa_do_verify)(const unsigned char *dgst, int dgst_len,
77			const ECDSA_SIG *sig, EC_KEY *eckey);
78#if 0
79	int (*init)(EC_KEY *eckey);
80	int (*finish)(EC_KEY *eckey);
81#endif
82	int flags;
83	char *app_data;
84	};
85
86/* If this flag is set the ECDSA method is FIPS compliant and can be used
87 * in FIPS mode. This is set in the validated module method. If an
88 * application sets this flag in its own methods it is its responsibility
89 * to ensure the result is compliant.
90 */
91
92#define ECDSA_FLAG_FIPS_METHOD	0x1
93
94typedef struct ecdsa_data_st {
95	/* EC_KEY_METH_DATA part */
96	int (*init)(EC_KEY *);
97	/* method (ECDSA) specific part */
98	ENGINE	*engine;
99	int	flags;
100	const ECDSA_METHOD *meth;
101	CRYPTO_EX_DATA ex_data;
102} ECDSA_DATA;
103
104/** ecdsa_check
105 * checks whether ECKEY->meth_data is a pointer to a ECDSA_DATA structure
106 * and if not it removes the old meth_data and creates a ECDSA_DATA structure.
107 * \param  eckey pointer to a EC_KEY object
108 * \return pointer to a ECDSA_DATA structure
109 */
110ECDSA_DATA *ecdsa_check(EC_KEY *eckey);
111
112#ifdef  __cplusplus
113}
114#endif
115
116#endif /* HEADER_ECS_LOCL_H */
117