Newer
Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
/* crypto/engine/tb_ecdh.c */
/* ====================================================================
* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
*
* The Elliptic Curve Public-Key Crypto Library (ECC Code) included
* herein is developed by SUN MICROSYSTEMS, INC., and is contributed
* to the OpenSSL project.
*
* The ECC Code is licensed pursuant to the OpenSSL open source
* license provided below.
*
* The ECDH engine software is originally written by Nils Gura and
* Douglas Stebila of Sun Microsystems Laboratories.
*
*/
/* ====================================================================
* Copyright (c) 2000-2002 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include "eng_int.h"
/* If this symbol is defined then ENGINE_get_default_ECDH(), the function that is
* used by ECDH to hook in implementation code and cache defaults (etc), will
* display brief debugging summaries to stderr with the 'nid'. */
/* #define ENGINE_ECDH_DEBUG */
static ENGINE_TABLE *ecdh_table = NULL;
static const int dummy_nid = 1;
void ENGINE_unregister_ECDH(ENGINE *e)
{
engine_table_unregister(&ecdh_table, e);
}
static void engine_unregister_all_ECDH(void)
{
engine_table_cleanup(&ecdh_table);
}
int ENGINE_register_ECDH(ENGINE *e)
{
if(e->ecdh_meth)
return engine_table_register(&ecdh_table,
engine_unregister_all_ECDH, e, &dummy_nid, 1, 0);
return 1;
}
void ENGINE_register_all_ECDH()
{
ENGINE *e;
for(e=ENGINE_get_first() ; e ; e=ENGINE_get_next(e))
ENGINE_register_ECDH(e);
}
int ENGINE_set_default_ECDH(ENGINE *e)
{
if(e->ecdh_meth)
return engine_table_register(&ecdh_table,
engine_unregister_all_ECDH, e, &dummy_nid, 1, 1);
return 1;
}
/* Exposed API function to get a functional reference from the implementation
* table (ie. try to get a functional reference from the tabled structural
* references). */
ENGINE *ENGINE_get_default_ECDH(void)
{
return engine_table_select(&ecdh_table, dummy_nid);
}
/* Obtains an ECDH implementation from an ENGINE functional reference */
const ECDH_METHOD *ENGINE_get_ECDH(const ENGINE *e)
{
return e->ecdh_meth;
}
/* Sets an ECDH implementation in an ENGINE structure */
int ENGINE_set_ECDH(ENGINE *e, const ECDH_METHOD *ecdh_meth)
{
e->ecdh_meth = ecdh_meth;
return 1;
}