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82 lines
2.7 KiB
C++
82 lines
2.7 KiB
C++
// hight.h - written and placed in the public domain by Kim Sung Hee and Jeffrey Walton
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// Based on "HIGHT: A New Block Cipher Suitable for Low-Resource Device"
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// by Deukjo Hong, Jaechul Sung, Seokhie Hong, Jongin Lim, Sangjin Lee,
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// Bon-Seok Koo, Changhoon Lee, Donghoon Chang, Jesang Lee, Kitae Jeong,
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// Hyun Kim, Jongsung Kim, and Seongtaek Chee
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/// \file hight.h
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/// \brief Classes for the HIGHT block cipher
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/// \since Crypto++ 7.1
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#ifndef CRYPTOPP_HIGHT_H
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#define CRYPTOPP_HIGHT_H
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#include "config.h"
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#include "seckey.h"
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#include "secblock.h"
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#include "algparam.h"
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NAMESPACE_BEGIN(CryptoPP)
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/// \brief HIGHT block cipher information
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/// \since Crypto++ 7.1
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struct HIGHT_Info : public FixedBlockSize<8>, public FixedKeyLength<16>
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{
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static const std::string StaticAlgorithmName()
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{
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// Format is Cipher-Blocksize
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return "HIGHT";
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}
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};
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/// \brief HIGHT 64-bit block cipher
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/// \details HIGHT provides 64-bit block size. The valid key size is 128-bits.
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/// \note Crypto++ provides a byte oriented implementation
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/// \sa <a href="http://www.cryptopp.com/wiki/HIGHT">HIGHT</a>,
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/// <a href="https://seed.kisa.or.kr/">Korea Internet & Security
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/// Agency</a> website
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/// \since Crypto++ 7.1
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class CRYPTOPP_NO_VTABLE HIGHT : public HIGHT_Info, public BlockCipherDocumentation
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{
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public:
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/// \brief HIGHT block cipher transformation functions
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/// \details Provides implementation common to encryption and decryption
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/// \since Crypto++ 7.1
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class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<HIGHT_Info>
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{
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protected:
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void UncheckedSetKey(const byte *userKey, unsigned int keyLength, const NameValuePairs ¶ms);
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FixedSizeSecBlock<byte, 136> m_rkey;
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mutable FixedSizeSecBlock<word32, 8> m_xx;
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};
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/// \brief Encryption transformation
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/// \details Enc provides implementation for encryption transformation.
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/// \since Crypto++ 7.1
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class CRYPTOPP_NO_VTABLE Enc : public Base
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{
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public:
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void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
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};
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/// \brief Encryption transformation
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/// \details Dec provides implementation for decryption transformation.
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/// \since Crypto++ 7.1
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class CRYPTOPP_NO_VTABLE Dec : public Base
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{
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public:
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void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
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};
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typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
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typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
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};
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typedef HIGHT::Encryption HIGHTEncryption;
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typedef HIGHT::Decryption HIGHTDecryption;
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NAMESPACE_END
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#endif // CRYPTOPP_HIGHT_H
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