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/*
* CRC32
* (C) 1999-2007 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_CRC32_H__
#define BOTAN_CRC32_H__
#include <botan/hash.h>
namespace Botan {
/**
* 32-bit cyclic redundancy check
*/
class BOTAN_DLL CRC32 : public HashFunction
{
public:
std::string name() const { return "CRC32"; }
size_t output_length() const { return 4; }
HashFunction* clone() const { return new CRC32; }
void clear() { crc = 0xFFFFFFFF; }
CRC32() { clear(); }
~CRC32() { clear(); }
private:
void add_data(const byte[], size_t);
void final_result(byte[]);
u32bit crc;
};
}
#endif
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