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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