1#ifndef CRYPTOPP_MD4_H 2#define CRYPTOPP_MD4_H 3 4#include "iterhash.h" 5 6NAMESPACE_BEGIN(CryptoPP) 7 8namespace Weak1 { 9 10//! <a href="http://www.weidai.com/scan-mirror/md.html#MD4">MD4</a> 11/*! \warning MD4 is considered insecure, and should not be used 12 unless you absolutely need it for compatibility. */ 13class MD4 : public IteratedHashWithStaticTransform<word32, LittleEndian, 64, 16, MD4> 14{ 15public: 16 static void InitState(HashWordType *state); 17 static void Transform(word32 *digest, const word32 *data); 18 static const char *StaticAlgorithmName() {return "MD4";} 19}; 20 21} 22#if CRYPTOPP_ENABLE_NAMESPACE_WEAK >= 1 23namespace Weak {using namespace Weak1;} // import Weak1 into CryptoPP::Weak 24#else 25using namespace Weak1; // import Weak1 into CryptoPP with warning 26#ifdef __GNUC__ 27#warning "You may be using a weak algorithm that has been retained for backwards compatibility. Please '#define CRYPTOPP_ENABLE_NAMESPACE_WEAK 1' before including this .h file and prepend the class name with 'Weak::' to remove this warning." 28#else 29#pragma message("You may be using a weak algorithm that has been retained for backwards compatibility. Please '#define CRYPTOPP_ENABLE_NAMESPACE_WEAK 1' before including this .h file and prepend the class name with 'Weak::' to remove this warning.") 30#endif 31#endif 32 33NAMESPACE_END 34 35#endif 36