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/* This file is part of the KDE project
Copyright (C) 2001 George Staikos <staikos@kde.org>
Based heavily on SHA1 code from GPG 1.0.3 (C) 1998 FSF
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef __sha1__ko__h
#define __sha1__ko__h
/* @internal
*/
class SHA1 {
public:
SHA1();
virtual ~SHA1();
/*
* The number of bits in the hash generated.
*/
virtual int size() const;
/*
* True if all settings are good and we are ready to hash.
*/
virtual bool readyToGo() const;
/*
* Process a block of data for the hash function.
*/
virtual int process(const void *block, int len);
/*
* Return the digest as a 20 byte array reference.
* Calling this makes readyToGo() == false.
*/
virtual const unsigned char *hash();
/*
* Reset the digest so a new one can be calculated.
*/
virtual int reset();
protected:
int _hashlen;
bool _init;
long _h0, _h1, _h2, _h3, _h4;
long _nblocks;
int _count;
unsigned char _buf[64];
void transform(void *data);
};
#endif
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