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
65 extern "C" {
66 #endif
67
68 struct 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, BIGNUM **kinv,
74 BIGNUM **r);
75 int (*ecdsa_do_verify)(const unsigned char *dgst, int dgst_len,
76 const ECDSA_SIG *sig, EC_KEY *eckey);
77 #if 0
78 int (*init)(EC_KEY *eckey);
79 int (*finish)(EC_KEY *eckey);
80 #endif
81 int flags;
82 char *app_data;
83 };
84
85 /* If this flag is set the ECDSA method is FIPS compliant and can be used
86 * in FIPS mode. This is set in the validated module method. If an
87 * application sets this flag in its own methods it is its responsibility
88 * to ensure the result is compliant.
89 */
90
91 #define ECDSA_FLAG_FIPS_METHOD 0x1
92
93 typedef struct ecdsa_data_st {
94 /* EC_KEY_METH_DATA part */
95 int (*init)(EC_KEY *);
96 /* method (ECDSA) specific part */
97 ENGINE *engine;
98 int flags;
99 const ECDSA_METHOD *meth;
100 CRYPTO_EX_DATA ex_data;
101 } ECDSA_DATA;
102
103 /** ecdsa_check
104 * checks whether ECKEY->meth_data is a pointer to a ECDSA_DATA structure
105 * and if not it removes the old meth_data and creates a ECDSA_DATA structure.
106 * \param eckey pointer to a EC_KEY object
107 * \return pointer to a ECDSA_DATA structure
108 */
109 ECDSA_DATA *ecdsa_check(EC_KEY *eckey);
110
111 #ifdef __cplusplus
112 }
113 #endif
114
115 #endif /* HEADER_ECS_LOCL_H */