repo2/atari_chips/pokeyv2/rehashr/tiger.h
| 1211 | markw | /*
|
|
Copyright (c) 2003, Dominik Reichl <dominik.reichl@t-online.de>
|
|||
All rights reserved.
|
|||
LICENSE TERMS
|
|||
Redistribution and use in source and binary forms, with or without
|
|||
modification, are permitted provided that the following conditions are met:
|
|||
* Redistributions of source code must retain the above copyright notice, this
|
|||
list of conditions and the following disclaimer.
|
|||
* Redistributions in binary form must reproduce the above copyright notice,
|
|||
this list of conditions and the following disclaimer in the documentation
|
|||
and/or other materials provided with the distribution.
|
|||
* Neither the name of ReichlSoft nor the names of its contributors may be used
|
|||
to endorse or promote products derived from this software without specific
|
|||
prior written permission.
|
|||
DISCLAIMER
|
|||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|||
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|||
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|||
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
|
|||
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|||
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|||
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|||
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|||
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|||
*/
|
|||
// This implementation is based on Tom St Denis free implementation.
|
|||
#ifndef ___TIGER_H___
|
|||
#define ___TIGER_H___
|
|||
#include "hashalgo.h"
|
|||
class CTigerHash : public CHashAlgorithm
|
|||
{
|
|||
public:
|
|||
CTigerHash();
|
|||
~CTigerHash();
|
|||
const char *GetName() { return "Tiger"; }
|
|||
const char *GetShortName() { return "tiger"; }
|
|||
UINTPREF GetLength() { return 24; }
|
|||
UINTPREF GetInternalLength() { return 64; }
|
|||
void Init(RH_DATA_INFO *pInfo);
|
|||
void Update(const UWORD8 *pBuf, UINTPREF uLen);
|
|||
void Final();
|
|||
void GetHash(UWORD8 *pHash) { memcpy(pHash, m_final, 24); }
|
|||
private:
|
|||
void _Compress();
|
|||
void _Round(UWORD64 *a, UWORD64 *b, UWORD64 *c, UWORD64 x, UWORD64 mul);
|
|||
void _Pass(UWORD64 *a, UWORD64 *b, UWORD64 *c, UWORD64 *x, UWORD64 mul);
|
|||
void _KeySchedule(UWORD64 *x);
|
|||
UWORD64 m_state[3], m_length;
|
|||
UWORD32 m_curlen;
|
|||
UWORD8 m_buf[64];
|
|||
UWORD8 m_final[24];
|
|||
};
|
|||
#endif
|