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beecrypt/sha256.h

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00001 
00007 /*
00008  * Copyright (c) 2000, 2001 Virtual Unlimited B.V.
00009  *
00010  * Author: Bob Deblier <bob@virtualunlimited.com>
00011  *
00012  * This library is free software; you can redistribute it and/or
00013  * modify it under the terms of the GNU Lesser General Public
00014  * License as published by the Free Software Foundation; either
00015  * version 2.1 of the License, or (at your option) any later version.
00016  *
00017  * This library is distributed in the hope that it will be useful,
00018  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00019  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00020  * Lesser General Public License for more details.
00021  *
00022  * You should have received a copy of the GNU Lesser General Public
00023  * License along with this library; if not, write to the Free Software
00024  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00025  *
00026  */
00027 
00028 #ifndef _SHA256_H
00029 #define _SHA256_H
00030 
00031 #include "beecrypt.h"
00032 
00035 typedef struct
00036 {
00037         uint32 h[8];
00038         uint32 data[64];
00039         uint64 length;
00040         uint8  offset;
00041 } sha256Param;
00042 
00043 #ifdef __cplusplus
00044 extern "C" {
00045 #endif
00046 
00049 /*@observer@*/ /*@checked@*/
00050 extern BEECRYPTAPI const hashFunction sha256;
00051 
00052 /*@-exportlocal@*/
00055 BEECRYPTAPI
00056 void sha256Process(sha256Param* p)
00057         /*@globals internalState @*/
00058         /*@modifies p, internalState @*/;
00059 
00062 BEECRYPTAPI
00063 int  sha256Reset  (sha256Param* p)
00064         /*@modifies p @*/;
00065 
00068 BEECRYPTAPI
00069 int  sha256Update (sha256Param* p, const byte* data, int size)
00070         /*@globals internalState @*/
00071         /*@modifies p, internalState @*/;
00072 
00075 BEECRYPTAPI
00076 int  sha256Digest (sha256Param* p, /*@out@*/ uint32* data)
00077         /*@globals internalState @*/
00078         /*@modifies p, data, internalState @*/;
00079 /*@=exportlocal@*/
00080 
00081 #ifdef __cplusplus
00082 }
00083 #endif
00084 
00085 #endif

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