md2.h

00001 #ifndef CRYPTOPP_MD2_H
00002 #define CRYPTOPP_MD2_H
00003 
00004 #include "cryptlib.h"
00005 #include "secblock.h"
00006 
00007 NAMESPACE_BEGIN(CryptoPP)
00008 
00009 namespace Weak1 {
00010 
00011 /// <a href="http://www.cryptolounge.org/wiki/MD2">MD2</a>
00012 class MD2 : public HashTransformation
00013 {
00014 public:
00015         MD2();
00016         void Update(const byte *input, size_t length);
00017         void TruncatedFinal(byte *hash, size_t size);
00018         unsigned int DigestSize() const {return DIGESTSIZE;}
00019         unsigned int BlockSize() const {return BLOCKSIZE;}
00020         static const char * StaticAlgorithmName() {return "MD2";}
00021 
00022         CRYPTOPP_CONSTANT(DIGESTSIZE = 16)
00023         CRYPTOPP_CONSTANT(BLOCKSIZE = 16)
00024 
00025 private:
00026         void Transform();
00027         void Init();
00028         SecByteBlock m_X, m_C, m_buf;
00029         unsigned int m_count;
00030 };
00031 
00032 }
00033 #if CRYPTOPP_ENABLE_NAMESPACE_WEAK >= 1
00034 namespace Weak {using namespace Weak1;}         // import Weak1 into CryptoPP::Weak
00035 #else
00036 using namespace Weak1;  // import Weak1 into CryptoPP with warning
00037 #ifdef __GNUC__
00038 #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."
00039 #else
00040 #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.")
00041 #endif
00042 #endif
00043 
00044 NAMESPACE_END
00045 
00046 #endif

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