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34 lines
789 B
34 lines
789 B
// adler32.h - written and placed in the public domain by Wei Dai |
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//! \file |
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//! \headerfile adler32.h |
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//! \brief Class file for ADLER-32 checksum calculations |
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#ifndef CRYPTOPP_ADLER32_H |
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#define CRYPTOPP_ADLER32_H |
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#include "cryptlib.h" |
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NAMESPACE_BEGIN(CryptoPP) |
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//! ADLER-32 checksum calculations |
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class Adler32 : public HashTransformation |
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{ |
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public: |
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CRYPTOPP_CONSTANT(DIGESTSIZE = 4) |
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Adler32() {Reset();} |
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void Update(const byte *input, size_t length); |
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void TruncatedFinal(byte *hash, size_t size); |
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unsigned int DigestSize() const {return DIGESTSIZE;} |
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static const char * StaticAlgorithmName() {return "Adler32";} |
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std::string AlgorithmName() const {return StaticAlgorithmName();} |
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private: |
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void Reset() {m_s1 = 1; m_s2 = 0;} |
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word16 m_s1, m_s2; |
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}; |
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NAMESPACE_END |
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#endif
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