Implemented EdDSA for IKEv2 using a pro forma Identity hash function
[strongswan.git] / src / libstrongswan / plugins / curve25519 / curve25519_plugin.c
1 /*
2 * Copyright (C) 2014 Martin Willi
3 * Copyright (C) 2014 revosec AG
4 *
5 * Copyright (C) 2016 Andreas Steffen
6 * HSR Hochschule fuer Technik Rapperswil
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 * for more details.
17 */
18
19 #include "curve25519_plugin.h"
20 #include "curve25519_dh.h"
21 #include "curve25519_private_key.h"
22 #include "curve25519_public_key.h"
23 #include "curve25519_identity_hasher.h"
24
25 #include <library.h>
26
27 typedef struct private_curve25519_plugin_t private_curve25519_plugin_t;
28
29 /**
30 * private data of curve25519_plugin
31 */
32 struct private_curve25519_plugin_t {
33
34 /**
35 * public functions
36 */
37 curve25519_plugin_t public;
38 };
39
40 METHOD(plugin_t, get_name, char*,
41 private_curve25519_plugin_t *this)
42 {
43 return "curve25519";
44 }
45
46 METHOD(plugin_t, get_features, int,
47 private_curve25519_plugin_t *this, plugin_feature_t *features[])
48 {
49 static plugin_feature_t f[] = {
50 /* X25519 DH group */
51 PLUGIN_REGISTER(DH, curve25519_dh_create),
52 PLUGIN_PROVIDE(DH, CURVE_25519),
53 PLUGIN_DEPENDS(RNG, RNG_STRONG),
54 /* Ed25519 private/public keys */
55 PLUGIN_REGISTER(PRIVKEY, curve25519_private_key_load, TRUE),
56 PLUGIN_PROVIDE(PRIVKEY, KEY_ED25519),
57 PLUGIN_REGISTER(PRIVKEY_GEN, curve25519_private_key_gen, FALSE),
58 PLUGIN_PROVIDE(PRIVKEY_GEN, KEY_ED25519),
59 PLUGIN_DEPENDS(RNG, RNG_TRUE),
60 PLUGIN_DEPENDS(HASHER, HASH_SHA512),
61 PLUGIN_REGISTER(PUBKEY, curve25519_public_key_load, TRUE),
62 PLUGIN_PROVIDE(PUBKEY, KEY_ED25519),
63 /* Ed25519 signature scheme, private */
64 PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_ED25519),
65 PLUGIN_DEPENDS(HASHER, HASH_SHA512),
66 /* Ed25519 signature verification scheme, public */
67 PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_ED25519),
68 PLUGIN_DEPENDS(HASHER, HASH_SHA512),
69 /* register a pro forma identity hasher */
70 PLUGIN_REGISTER(HASHER, curve25519_identity_hasher_create),
71 PLUGIN_PROVIDE(HASHER, HASH_IDENTITY),
72 };
73 *features = f;
74 return countof(f);
75 }
76
77 METHOD(plugin_t, destroy, void,
78 private_curve25519_plugin_t *this)
79 {
80 free(this);
81 }
82
83 /*
84 * see header file
85 */
86 plugin_t *curve25519_plugin_create()
87 {
88 private_curve25519_plugin_t *this;
89
90 INIT(this,
91 .public = {
92 .plugin = {
93 .get_name = _get_name,
94 .get_features = _get_features,
95 .destroy = _destroy,
96 },
97 },
98 );
99
100 return &this->public.plugin;
101 }