adler32.h

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// adler32.h - originally 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