sha256.h

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00001 /*
00002  * Copyright (c) 2000, 2001, 2002 Virtual Unlimited B.V.
00003  *
00004  * This library is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU Lesser General Public
00006  * License as published by the Free Software Foundation; either
00007  * version 2.1 of the License, or (at your option) any later version.
00008  *
00009  * This library is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  * Lesser General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU Lesser General Public
00015  * License along with this library; if not, write to the Free Software
00016  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00017  *
00018  */
00019 
00026 #ifndef _SHA256_H
00027 #define _SHA256_H
00028 
00029 #include "beecrypt/beecrypt.h"
00030 
00034 #ifdef __cplusplus
00035 struct BEECRYPTAPI sha256Param
00036 #else
00037 struct _sha256Param
00038 #endif
00039 {
00042     uint32_t h[8];
00045     uint32_t data[64];
00050     #if (MP_WBITS == 64)
00051     mpw length[1];
00052     #elif (MP_WBITS == 32)
00053     mpw length[2];
00054     #else
00055     # error
00056     #endif
00057 
00061     uint32_t offset;
00062 };
00063 
00064 #ifndef __cplusplus
00065 typedef struct _sha256Param sha256Param;
00066 #endif
00067 
00068 #ifdef __cplusplus
00069 extern "C" {
00070 #endif
00071 
00075 extern BEECRYPTAPI const hashFunction sha256;
00076 
00082 BEECRYPTAPI
00083 void sha256Process(sha256Param* sp);
00084 
00091 BEECRYPTAPI
00092 int  sha256Reset  (sha256Param* sp);
00093 
00102 BEECRYPTAPI
00103 int  sha256Update (sha256Param* sp, const byte* data, size_t size);
00104 
00112 BEECRYPTAPI
00113 int  sha256Digest (sha256Param* sp, byte* digest);
00114 
00115 #ifdef __cplusplus
00116 }
00117 #endif
00118 
00119 #endif

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