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#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";}
enum {DIGESTSIZE = 16};
MD5MAC_Base() {SetStateSize(DIGESTSIZE);}
void UncheckedSetKey(const byte *userKey, unsigned int keylength);
void TruncatedFinal(byte *mac, unsigned int 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>
typedef MessageAuthenticationCodeFinal<MD5MAC_Base> MD5MAC;
NAMESPACE_END
#endif
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