ctc_dsa.h

00001 /* ctc_dsa.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_DSA
00023 
00024 #ifndef CTAO_CRYPT_DSA_H
00025 #define CTAO_CRYPT_DSA_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 enum {
00037     DSA_PUBLIC   = 0,
00038     DSA_PRIVATE  = 1
00039 };
00040 
00041 /* DSA */
00042 typedef struct DsaKey {
00043     mp_int p, q, g, y, x;
00044     int type;                               /* public or private */
00045 } DsaKey;
00046 
00047 
00048 void InitDsaKey(DsaKey* key);
00049 void FreeDsaKey(DsaKey* key);
00050 
00051 int DsaSign(const byte* digest, byte* out, DsaKey* key, RNG* rng);
00052 int DsaVerify(const byte* digest, const byte* sig, DsaKey* key, int* answer);
00053 
00054 
00055 #ifdef __cplusplus
00056     } /* extern "C" */
00057 #endif
00058 
00059 #endif /* CTAO_CRYPT_DSA_H */
00060 #endif /* NO_DSA */
00061