ext-cryptopp/adler32.h
2006-12-14 11:41:39 +00:00

27 lines
492 B
C++

#ifndef CRYPTOPP_ADLER32_H
#define CRYPTOPP_ADLER32_H
#include "cryptlib.h"
NAMESPACE_BEGIN(CryptoPP)
//! ADLER-32 checksum calculations
class Adler32 : public HashTransformation
{
public:
CRYPTOPP_CONSTANT(DIGESTSIZE = 4)
Adler32() {Reset();}
void Update(const byte *input, size_t length);
void TruncatedFinal(byte *hash, size_t size);
unsigned int DigestSize() const {return DIGESTSIZE;}
private:
void Reset() {m_s1 = 1; m_s2 = 0;}
word16 m_s1, m_s2;
};
NAMESPACE_END
#endif