ech_locl.h revision 296465 
1/* crypto/ecdh/ech_locl.h */
2/* ====================================================================
3 * Copyright (c) 2000-2005 The OpenSSL Project.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in
14 *    the documentation and/or other materials provided with the
15 *    distribution.
16 *
17 * 3. All advertising materials mentioning features or use of this
18 *    software must display the following acknowledgment:
19 *    "This product includes software developed by the OpenSSL Project
20 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
21 *
22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23 *    endorse or promote products derived from this software without
24 *    prior written permission. For written permission, please contact
25 *    licensing@OpenSSL.org.
26 *
27 * 5. Products derived from this software may not be called "OpenSSL"
28 *    nor may "OpenSSL" appear in their names without prior written
29 *    permission of the OpenSSL Project.
30 *
31 * 6. Redistributions of any form whatsoever must retain the following
32 *    acknowledgment:
33 *    "This product includes software developed by the OpenSSL Project
34 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
35 *
36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47 * OF THE POSSIBILITY OF SUCH DAMAGE.
48 * ====================================================================
49 *
50 * This product includes cryptographic software written by Eric Young
51 * (eay@cryptsoft.com).  This product includes software written by Tim
52 * Hudson (tjh@cryptsoft.com).
53 *
54 */
55
56#ifndef HEADER_ECH_LOCL_H
57# define HEADER_ECH_LOCL_H
58
59# include <openssl/ecdh.h>
60
61#ifdef  __cplusplus
62extern "C" {
63#endif
64
65struct ecdh_method {
66    const char *name;
67    int (*compute_key) (void *key, size_t outlen, const EC_POINT *pub_key,
68                        EC_KEY *ecdh, void *(*KDF) (const void *in,
69                                                    size_t inlen, void *out,
70                                                    size_t *outlen));
71# if 0
72    int (*init) (EC_KEY *eckey);
73    int (*finish) (EC_KEY *eckey);
74# endif
75    int flags;
76    char *app_data;
77};
78
79typedef struct ecdh_data_st {
80    /* EC_KEY_METH_DATA part */
81    int (*init) (EC_KEY *);
82    /* method specific part */
83    ENGINE *engine;
84    int flags;
85    const ECDH_METHOD *meth;
86    CRYPTO_EX_DATA ex_data;
87} ECDH_DATA;
88
89ECDH_DATA *ecdh_check(EC_KEY *);
90
91#ifdef  __cplusplus
92}
93#endif
94
95#endif                          /* HEADER_ECH_LOCL_H */
96