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