133 lines
3.4 KiB
C++
133 lines
3.4 KiB
C++
#ifndef CRYPTOPP_TEA_H
|
|
#define CRYPTOPP_TEA_H
|
|
|
|
/** \file
|
|
*/
|
|
|
|
#include "seckey.h"
|
|
#include "secblock.h"
|
|
|
|
NAMESPACE_BEGIN(CryptoPP)
|
|
|
|
//! _
|
|
struct TEA_Info : public FixedBlockSize<8>, public FixedKeyLength<16>, public VariableRounds<32>
|
|
{
|
|
static const char *StaticAlgorithmName() {return "TEA";}
|
|
};
|
|
|
|
/// <a href="http://www.weidai.com/scan-mirror/cs.html#TEA">TEA</a>
|
|
class TEA : public TEA_Info, public BlockCipherDocumentation
|
|
{
|
|
class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<TEA_Info>
|
|
{
|
|
public:
|
|
void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs ¶ms);
|
|
|
|
protected:
|
|
FixedSizeSecBlock<word32, 4> m_k;
|
|
word32 m_limit;
|
|
};
|
|
|
|
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;
|
|
};
|
|
|
|
public:
|
|
typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
|
|
typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
|
|
};
|
|
|
|
typedef TEA::Encryption TEAEncryption;
|
|
typedef TEA::Decryption TEADecryption;
|
|
|
|
//! _
|
|
struct XTEA_Info : public FixedBlockSize<8>, public FixedKeyLength<16>, public VariableRounds<32>
|
|
{
|
|
static const char *StaticAlgorithmName() {return "XTEA";}
|
|
};
|
|
|
|
/// <a href="http://www.weidai.com/scan-mirror/cs.html#TEA">XTEA</a>
|
|
class XTEA : public XTEA_Info, public BlockCipherDocumentation
|
|
{
|
|
class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<XTEA_Info>
|
|
{
|
|
public:
|
|
void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs ¶ms);
|
|
|
|
protected:
|
|
FixedSizeSecBlock<word32, 4> m_k;
|
|
word32 m_limit;
|
|
};
|
|
|
|
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;
|
|
};
|
|
|
|
public:
|
|
typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
|
|
typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
|
|
};
|
|
|
|
//! _
|
|
struct BTEA_Info : public FixedKeyLength<16>
|
|
{
|
|
static const char *StaticAlgorithmName() {return "BTEA";}
|
|
};
|
|
|
|
//! <a href="http://www.weidai.com/scan-mirror/cs.html#TEA">corrected Block TEA</a> (as described in "xxtea").
|
|
/*! This class hasn't been tested yet. */
|
|
class BTEA : public BTEA_Info, public BlockCipherDocumentation
|
|
{
|
|
class CRYPTOPP_NO_VTABLE Base : public AlgorithmImpl<SimpleKeyingInterfaceImpl<BlockCipher, BTEA_Info>, BTEA_Info>, public BTEA_Info
|
|
{
|
|
public:
|
|
void UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs ¶ms)
|
|
{
|
|
m_blockSize = params.GetIntValueWithDefault("BlockSize", 60*4);
|
|
GetUserKey(BIG_ENDIAN_ORDER, m_k.begin(), 4, key, KEYLENGTH);
|
|
}
|
|
|
|
unsigned int BlockSize() const {return m_blockSize;}
|
|
|
|
protected:
|
|
FixedSizeSecBlock<word32, 4> m_k;
|
|
unsigned int m_blockSize;
|
|
};
|
|
|
|
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;
|
|
};
|
|
|
|
public:
|
|
typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
|
|
typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
|
|
};
|
|
|
|
NAMESPACE_END
|
|
|
|
#endif
|