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/*
* Tiger
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_TIGER_H__
#define BOTAN_TIGER_H__
#include <botan/mdx_hash.h>
namespace Botan {
/**
* Tiger
*/
class BOTAN_DLL Tiger : public MDx_HashFunction
{
public:
void clear();
std::string name() const;
HashFunction* clone() const { return new Tiger(OUTPUT_LENGTH); }
/**
* @param out_size specifies the output length; can be 16, 20, or 24
* @param passes to make in the algorithm
*/
Tiger(u32bit out_size = 24, u32bit passes = 3);
private:
void compress_n(const byte[], u32bit block);
void copy_out(byte[]);
static void pass(u64bit&, u64bit&, u64bit&, u64bit[8], byte);
static const u64bit SBOX1[256];
static const u64bit SBOX2[256];
static const u64bit SBOX3[256];
static const u64bit SBOX4[256];
SecureVector<u64bit, 8> X;
SecureVector<u64bit, 3> digest;
const u32bit PASS;
};
}
#endif
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