release/src/router/tinc/src/ecdh.h

   1 /*
   2     ecdh.h -- header file for ecdh.c
   3     Copyright (C) 2011-2013 Guus Sliepen <guus@tinc-vpn.org>
   4
   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.
   9
  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.
  14
  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.
  18 */
  19
  20 #ifndef __TINC_ECDH_H__
  21 #define __TINC_ECDH_H__
  22
  23 #define ECDH_SIZE 32
  24 #define ECDH_SHARED_SIZE 32
  25
  26 #ifndef __TINC_ECDH_INTERNAL__
  27 typedef struct ecdh ecdh_t;
  28 #endif
  29
  30 extern ecdh_t *ecdh_generate_public(void *pubkey) __attribute__ ((__malloc__));
  31 extern bool ecdh_compute_shared(ecdh_t *ecdh, const void *pubkey, void *shared) __attribute__ ((__warn_unused_result__));
  32 extern void ecdh_free(ecdh_t *ecdh);
  33
  34 #endif