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// -*-c++-*-
/* $Id: tiger.h,v 1.4 1999/02/20 07:03:09 dm Exp $ */
/*
*
* Copyright (C) 1998 David Mazieres (dm@uun.org)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2, or (at
* your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
*/
#ifndef _CRYPT_TIGER_H_INCLUDED_
#define _CRYPT_TIGER_H_INCLUDED_ 1
#include "crypthash.h"
class tiger : public mdblock {
protected:
static const u_int64_t t1[256];
static const u_int64_t t2[256];
static const u_int64_t t3[256];
static const u_int64_t t4[256];
public:
enum { hashquads = 3 };
enum { hashsize = hashquads * 8 };
void finish () { mdblock::finish_le (); }
static void newstate (u_int64_t[hashquads]);
static void transform (u_int64_t[hashquads], const u_char[blocksize]);
static void state2bytes (void *, const u_int64_t[hashquads]);
};
class tigerctx : public tiger {
u_int64_t state[3];
void consume (const u_char *p) { transform (state, p); }
public:
tigerctx () { newstate (state); }
void reset () { count = 0; newstate (state); }
void final (void *digest) {
finish ();
state2bytes (digest, state);
bzero (state, sizeof (state));
}
};
#endif /* !_CRYPT_TIGER_H_INCLUDED_ */
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