2 ecdh.h -- header file for ecdh.c
3 Copyright (C) 2011 Guus Sliepen <guus@tinc-vpn.org>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20 #ifndef __TINC_ECDH_H__
21 #define __TINC_ECDH_H__
23 #include <openssl/ecdh.h>
26 #define ECDH_SHARED_SIZE 66
28 typedef EC_KEY *ecdh_t;
30 extern bool ecdh_generate_public(ecdh_t *ecdh, void *pubkey);
31 extern bool ecdh_compute_shared(ecdh_t *ecdh, const void *pubkey, void *shared);
32 extern void ecdh_free(ecdh_t *ecdh);