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
|
|
// Based on "HIGHT: A New Block Cipher Suitable for Low-Resource Device"
|
|
// by Deukjo Hong, Jaechul Sung, Seokhie Hong, Jongin Lim, Sangjin Lee,
|
|
// Bon-Seok Koo, Changhoon Lee, Donghoon Chang, Jesang Lee, Kitae Jeong,
|
|
// Hyun Kim, Jongsung Kim, and Seongtaek Chee
|
|
|
|
/// \file hight.h
|
|
/// \brief Classes for the HIGHT block cipher
|
|
/// \since Crypto++ 8.0
|
|
|
|
#ifndef CRYPTOPP_HIGHT_H
|
|
#define CRYPTOPP_HIGHT_H
|
|
|
|
#include "config.h"
|
|
#include "seckey.h"
|
|
#include "secblock.h"
|
|
#include "algparam.h"
|
|
|
|
NAMESPACE_BEGIN(CryptoPP)
|
|
|
|
/// \brief HIGHT block cipher information
|
|
/// \since Crypto++ 8.0
|
|
struct HIGHT_Info : public FixedBlockSize<8>, public FixedKeyLength<16>
|
|
{
|
|
static const std::string StaticAlgorithmName()
|
|
{
|
|
// Format is Cipher-Blocksize
|
|
return "HIGHT";
|
|
}
|
|
};
|
|
|
|
/// \brief HIGHT 64-bit block cipher
|
|
/// \details HIGHT provides 64-bit block size. The valid key size is 128-bits.
|
|
/// \note Crypto++ provides a byte oriented implementation
|
|
/// \sa <a href="http://www.cryptopp.com/wiki/HIGHT">HIGHT</a>,
|
|
/// <a href="https://seed.kisa.or.kr/">Korea Internet & Security
|
|
/// Agency</a> website
|
|
/// \since Crypto++ 8.0
|
|
class CRYPTOPP_NO_VTABLE HIGHT : public HIGHT_Info, public BlockCipherDocumentation
|
|
{
|
|
public:
|
|
/// \brief HIGHT block cipher transformation functions
|
|
/// \details Provides implementation common to encryption and decryption
|
|
/// \since Crypto++ 8.0
|
|
class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<HIGHT_Info>
|
|
{
|
|
protected:
|
|
void UncheckedSetKey(const byte *userKey, unsigned int keyLength, const NameValuePairs ¶ms);
|
|
|
|
FixedSizeSecBlock<byte, 136> m_rkey;
|
|
mutable FixedSizeSecBlock<word32, 8> m_xx;
|
|
};
|
|
|
|
/// \brief Encryption transformation
|
|
/// \details Enc provides implementation for encryption transformation.
|
|
/// \since Crypto++ 8.0
|
|
class CRYPTOPP_NO_VTABLE Enc : public Base
|
|
{
|
|
public:
|
|
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
|
|
};
|
|
|
|
/// \brief Decryption transformation
|
|
/// \details Dec provides implementation for decryption transformation.
|
|
/// \since Crypto++ 8.0
|
|
class CRYPTOPP_NO_VTABLE Dec : public Base
|
|
{
|
|
public:
|
|
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
|
|
};
|
|
|
|
typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
|
|
typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
|
|
};
|
|
|
|
typedef HIGHT::Encryption HIGHTEncryption;
|
|
typedef HIGHT::Decryption HIGHTDecryption;
|
|
|
|
NAMESPACE_END
|
|
|
|
#endif // CRYPTOPP_HIGHT_H
|