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55 lines
1.7 KiB
55 lines
1.7 KiB
4 years ago
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// md2.h - originally written and placed in the public domain by Wei Dai
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/// \file md2.h
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/// \brief Classes for the MD2 message digest
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/// \since Crypto++ 3.0
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#ifndef CRYPTOPP_MD2_H
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#define CRYPTOPP_MD2_H
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#include "cryptlib.h"
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#include "secblock.h"
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NAMESPACE_BEGIN(CryptoPP)
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namespace Weak1 {
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/// \brief MD2 message digest
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/// \sa <a href="http://www.cryptolounge.org/wiki/MD2">MD2</a>
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/// \since Crypto++ 3.0
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class MD2 : public HashTransformation
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{
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public:
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MD2();
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void Update(const byte *input, size_t length);
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void TruncatedFinal(byte *hash, size_t size);
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unsigned int DigestSize() const {return DIGESTSIZE;}
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unsigned int BlockSize() const {return BLOCKSIZE;}
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CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() {return "MD2";}
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CRYPTOPP_CONSTANT(DIGESTSIZE = 16);
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CRYPTOPP_CONSTANT(BLOCKSIZE = 16);
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private:
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void Transform();
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void Init();
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SecByteBlock m_X, m_C, m_buf;
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unsigned int m_count;
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};
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}
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#if CRYPTOPP_ENABLE_NAMESPACE_WEAK >= 1
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namespace Weak {using namespace Weak1;} // import Weak1 into CryptoPP::Weak
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#else
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using namespace Weak1; // import Weak1 into CryptoPP with warning
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#ifdef __GNUC__
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#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."
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#else
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#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.")
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#endif
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#endif
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NAMESPACE_END
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#endif
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