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#ifndef CRYPTOPP_DIAMOND_H
#define CRYPTOPP_DIAMOND_H
/** \file
*/
#include "seckey.h"
#include "secblock.h"
NAMESPACE_BEGIN(CryptoPP)
struct Diamond2_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 1, 256>, public VariableRounds<10>
{
static const char *StaticAlgorithmName() {return "Diamond2";}
};
/// <a href="http://www.weidai.com/scan-mirror/cs.html#Diamond2">Diamond2</a>
class Diamond2 : public Diamond2_Info, public BlockCipherDocumentation
{
class Base : public BlockCipherBaseTemplate<Diamond2_Info>
{
public:
void UncheckedSetKey(CipherDir direction, const byte *userKey, unsigned int length, unsigned int rounds);
protected:
enum {ROUNDSIZE=4096};
inline void substitute(int round, byte *x, const byte *y) const;
int numrounds;
SecByteBlock s; // Substitution boxes
static inline void permute(byte *);
static inline void ipermute(byte *);
#ifdef DIAMOND_USE_PERMTABLE
static const word32 permtable[9][256];
static const word32 ipermtable[9][256];
#endif
};
class Enc : public Base
{
public:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
};
class Dec : public Base
{
public:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
};
public:
typedef BlockCipherTemplate<ENCRYPTION, Enc> Encryption;
typedef BlockCipherTemplate<DECRYPTION, Dec> Decryption;
};
typedef Diamond2::Encryption Diamond2Encryption;
typedef Diamond2::Decryption Diamond2Decryption;
struct Diamond2Lite_Info : public FixedBlockSize<8>, public VariableKeyLength<16, 1, 256>, public VariableRounds<8>
{
static const char *StaticAlgorithmName() {return "Diamond2Lite";}
};
/// <a href="http://www.weidai.com/scan-mirror/cs.html#Diamond2">Diamond2Lite</a>
class Diamond2Lite : public Diamond2Lite_Info, public BlockCipherDocumentation
{
class Base : public BlockCipherBaseTemplate<Diamond2Lite_Info>
{
public:
void UncheckedSetKey(CipherDir direction, const byte *userKey, unsigned int length, unsigned int rounds);
protected:
enum {ROUNDSIZE=2048};
inline void substitute(int round, byte *x, const byte *y) const;
int numrounds;
SecByteBlock s; // Substitution boxes
static inline void permute(byte *);
static inline void ipermute(byte *);
#ifdef DIAMOND_USE_PERMTABLE
static const word32 permtable[8][256];
static const word32 ipermtable[8][256];
#endif
};
class Enc : public Base
{
public:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
};
class Dec : public Base
{
public:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
};
public:
typedef BlockCipherTemplate<ENCRYPTION, Enc> Encryption;
typedef BlockCipherTemplate<DECRYPTION, Dec> Decryption;
};
typedef Diamond2Lite::Encryption Diamond2LiteEncryption;
typedef Diamond2Lite::Decryption Diamond2LiteDecryption;
NAMESPACE_END
#endif
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