00001 #ifndef CRYPTOPP_ADLER32_H
00002 #define CRYPTOPP_ADLER32_H
00003
00004 #include "cryptlib.h"
00005
00006 NAMESPACE_BEGIN(CryptoPP)
00007
00008
00009 class Adler32 : public HashTransformation
00010 {
00011 public:
00012 CRYPTOPP_CONSTANT(DIGESTSIZE = 4)
00013 Adler32() {Reset();}
00014 void Update(const byte *input, size_t length);
00015 void TruncatedFinal(byte *hash, size_t size);
00016 unsigned int DigestSize() const {return DIGESTSIZE;}
00017 static const char * StaticAlgorithmName() {return "Adler32";}
00018 std::string AlgorithmName() const {return StaticAlgorithmName();}
00019
00020 private:
00021 void Reset() {m_s1 = 1; m_s2 = 0;}
00022
00023 word16 m_s1, m_s2;
00024 };
00025
00026 NAMESPACE_END
00027
00028 #endif
