#ifndef CRYPTOPP_MD5MAC_H #define CRYPTOPP_MD5MAC_H /** \file */ #include "seckey.h" #include "iterhash.h" NAMESPACE_BEGIN(CryptoPP) class CRYPTOPP_NO_VTABLE MD5MAC_Base : public FixedKeyLength<16>, public IteratedHash<word32, LittleEndian, 64, MessageAuthenticationCode> { public: static std::string StaticAlgorithmName() {return "MD5-MAC";} CRYPTOPP_CONSTANT(DIGESTSIZE = 16) MD5MAC_Base() {SetStateSize(DIGESTSIZE);} void UncheckedSetKey(const byte *userKey, unsigned int keylength, const NameValuePairs ¶ms); void TruncatedFinal(byte *mac, size_t size); unsigned int DigestSize() const {return DIGESTSIZE;} protected: static void Transform (word32 *buf, const word32 *in, const word32 *key); void HashEndianCorrectedBlock(const word32 *data) {Transform(m_digest, data, m_key+4);} void Init(); static const word32 T[12]; FixedSizeSecBlock<word32, 12> m_key; }; //! <a href="http://www.weidai.com/scan-mirror/mac.html#MD5-MAC">MD5-MAC</a> DOCUMENTED_TYPEDEF(MessageAuthenticationCodeFinal<MD5MAC_Base>, MD5MAC) NAMESPACE_END #endif