adler32.h

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// adler32.h - written and placed in the public domain by Wei Dai


#ifndef CRYPTOPP_ADLER32_H
#define CRYPTOPP_ADLER32_H

#include "cryptlib.h"

NAMESPACE_BEGIN(CryptoPP)

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;}
    CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() {return "Adler32";}
    std::string AlgorithmName() const {return StaticAlgorithmName();}

private:
        void Reset() {m_s1 = 1; m_s2 = 0;}

        word16 m_s1, m_s2;
};

NAMESPACE_END

#endif