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ech_locl.h
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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
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  * ([email protected]). This product includes software written by Tim
52  * Hudson ([email protected]).
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
62 extern "C" {
63 #endif
64 
65 struct ecdh_method
66  {
67  const char *name;
68  int (*compute_key)(void *key, size_t outlen, const EC_POINT *pub_key, EC_KEY *ecdh,
69  void *(*KDF)(const void *in, size_t inlen, void *out, size_t *outlen));
70 #if 0
71  int (*init)(EC_KEY *eckey);
72  int (*finish)(EC_KEY *eckey);
73 #endif
74  int flags;
75  char *app_data;
76  };
77 
78 /* If this flag is set the ECDH method is FIPS compliant and can be used
79  * in FIPS mode. This is set in the validated module method. If an
80  * application sets this flag in its own methods it is its responsibility
81  * to ensure the result is compliant.
82  */
83 
84 #define ECDH_FLAG_FIPS_METHOD 0x1
85 
86 typedef struct ecdh_data_st {
87  /* EC_KEY_METH_DATA part */
88  int (*init)(EC_KEY *);
89  /* method specific part */
91  int flags;
92  const ECDH_METHOD *meth;
94 } ECDH_DATA;
95 
97 
98 #ifdef __cplusplus
99 }
100 #endif
101 
102 #endif /* HEADER_ECH_LOCL_H */