simeck.h

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// simeck.h - written and placed in the public domain by Gangqiang Yang and Jeffrey Walton.
//            Based on "The Simeck Family of Lightweight Block Ciphers" by Gangqiang Yang,
//            Bo Zhu, Valentin Suder, Mark D. Aagaard, and Guang Gong
 
 
#ifndef CRYPTOPP_SIMECK_H
#define CRYPTOPP_SIMECK_H
 
#include "config.h"
#include "seckey.h"
#include "secblock.h"
#include "algparam.h"
 
NAMESPACE_BEGIN(CryptoPP)
 
 
struct SIMECK32_Info : public FixedBlockSize<4>, public FixedKeyLength<8>, public FixedRounds<32>
{
    static const std::string StaticAlgorithmName()
    {
        // Format is Cipher-Blocksize
        return "SIMECK-32";
    }
};
 
struct SIMECK64_Info : public FixedBlockSize<8>, public FixedKeyLength<16>, public FixedRounds<44>
{
    static const std::string StaticAlgorithmName()
    {
        // Format is Cipher-Blocksize
        return "SIMECK-64";
    }
};
 
class CRYPTOPP_NO_VTABLE SIMECK32 : public SIMECK32_Info, public BlockCipherDocumentation
{
public:
    class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<SIMECK32_Info>
    {
    protected:
        void UncheckedSetKey(const byte *userKey, unsigned int keyLength, const NameValuePairs &params);
        std::string AlgorithmProvider() const;
 
        FixedSizeSecBlock<word16, ROUNDS> m_rk;
        mutable FixedSizeSecBlock<word16, 5> m_t;
    };
 
    class CRYPTOPP_NO_VTABLE Enc : public Base
    {
    public:
        void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
    };
 
    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 SIMECK32::Encryption SIMECK32Encryption;
typedef SIMECK32::Decryption SIMECK32Decryption;
 
class CRYPTOPP_NO_VTABLE SIMECK64 : public SIMECK64_Info, public BlockCipherDocumentation
{
public:
    class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<SIMECK64_Info>
    {
    protected:
        void UncheckedSetKey(const byte *userKey, unsigned int keyLength, const NameValuePairs &params);
        std::string AlgorithmProvider() const;
 
        FixedSizeSecBlock<word32, ROUNDS> m_rk;
        mutable FixedSizeSecBlock<word32, 5> m_t;
    };
 
    class CRYPTOPP_NO_VTABLE Enc : public Base
    {
    public:
        void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
 
#if CRYPTOPP_SIMECK_ADVANCED_PROCESS_BLOCKS
        size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const;
#endif
    };
 
    class CRYPTOPP_NO_VTABLE Dec : public Base
    {
    public:
        void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
 
#if CRYPTOPP_SIMECK_ADVANCED_PROCESS_BLOCKS
        size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const;
#endif
    };
 
    typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
    typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
};
 
typedef SIMECK64::Encryption SIMECK64Encryption;
typedef SIMECK64::Decryption SIMECK64Decryption;
 
NAMESPACE_END
 
#endif  // CRYPTOPP_SIMECK_H