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#ifndef CRYPTOPP_TWOFISH_H
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#define CRYPTOPP_TWOFISH_H
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#include "seckey.h"
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#include "secblock.h"
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00010 NAMESPACE_BEGIN(CryptoPP)
00011
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00013 struct
Twofish_Info : public
FixedBlockSize<16>, public
VariableKeyLength<16, 0, 32>,
FixedRounds<16>
00014 {
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static const char *StaticAlgorithmName() {
return "Twofish";}
00016 };
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00018
00019 class Twofish :
public Twofish_Info,
public BlockCipherDocumentation
00020 {
00021
class CRYPTOPP_NO_VTABLE Base :
public BlockCipherImpl<Twofish_Info>
00022 {
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public:
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void UncheckedSetKey(
CipherDir direction,
const byte *userKey,
unsigned int length);
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protected:
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static word32 h0(word32 x,
const word32 *key,
unsigned int kLen);
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static word32 h(word32 x,
const word32 *key,
unsigned int kLen);
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static const byte q[2][256];
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static const word32 mds[4][256];
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00033 FixedSizeSecBlock<word32, 40> m_k;
00034 FixedSizeSecBlock<word32[256], 4> m_s;
00035 };
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class CRYPTOPP_NO_VTABLE Enc :
public Base
00038 {
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public:
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void ProcessAndXorBlock(
const byte *inBlock,
const byte *xorBlock, byte *outBlock)
const;
00041 };
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class CRYPTOPP_NO_VTABLE Dec :
public Base
00044 {
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public:
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void ProcessAndXorBlock(
const byte *inBlock,
const byte *xorBlock, byte *outBlock)
const;
00047 };
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public:
00050 typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
00051 typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
00052 };
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typedef Twofish::Encryption TwofishEncryption;
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typedef Twofish::Decryption TwofishDecryption;
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00057 NAMESPACE_END
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#endif