ctc_dh.h

00001 /* ctc_dh.h
00002  *
00003  * Copyright (C) 2006-2009 Sawtooth Consulting Ltd.
00004  *
00005  * This file is part of CyaSSL.
00006  *
00007  * CyaSSL is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License as published by
00009  * the Free Software Foundation; either version 2 of the License, or
00010  * (at your option) any later version.
00011  *
00012  * CyaSSL is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
00020  */
00021 
00022 #ifndef NO_DH
00023 
00024 #ifndef CTAO_CRYPT_DH_H
00025 #define CTAO_CRYPT_DH_H
00026 
00027 #include "types.h"
00028 #include "integer.h"
00029 #include "random.h"
00030 
00031 #ifdef __cplusplus
00032     extern "C" {
00033 #endif
00034 
00035 
00036 
00037 /* Diffie-Hellman Key */
00038 typedef struct DhKey {
00039     mp_int p, g;                            /* group parameters  */
00040 } DhKey;
00041 
00042 
00043 void InitDhKey(DhKey* key);
00044 void FreeDhKey(DhKey* key);
00045 
00046 int DhGenerateKeyPair(DhKey* key, RNG* rng, byte* priv, word32* privSz,
00047                       byte* pub, word32* pubSz);
00048 int DhAgree(DhKey* key, byte* agree, word32* agreeSz, const byte* priv,
00049             word32 privSz, const byte* otherPub, word32 pubSz);
00050 
00051 
00052 #ifdef __cplusplus
00053     } /* extern "C" */
00054 #endif
00055 
00056 #endif /* CTAO_CRYPT_DH_H */
00057 
00058 #endif /* NO_DH */
00059