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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)
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00012 struct Twofish_Info : public
FixedBlockSize<16>, public
VariableKeyLength<16, 0, 32>,
FixedRounds<16>
00013 {
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static const char *StaticAlgorithmName() {
return "Twofish";}
00015 };
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00017
00018 class Twofish :
public Twofish_Info,
public BlockCipherDocumentation
00019 {
00020
class Base :
public BlockCipherBaseTemplate<Twofish_Info>
00021 {
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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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00032 FixedSizeSecBlock<word32, 40> m_k;
00033 FixedSizeSecBlock<word32[256], 4> m_s;
00034 };
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class Enc :
public Base
00037 {
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public:
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void ProcessAndXorBlock(
const byte *inBlock,
const byte *xorBlock, byte *outBlock)
const;
00040 };
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class Dec :
public Base
00043 {
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public:
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void ProcessAndXorBlock(
const byte *inBlock,
const byte *xorBlock, byte *outBlock)
const;
00046 };
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public:
00049 typedef BlockCipherTemplate<ENCRYPTION, Enc> Encryption;
00050 typedef BlockCipherTemplate<DECRYPTION, Dec> Decryption;
00051 };
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typedef Twofish::Encryption TwofishEncryption;
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typedef Twofish::Decryption TwofishDecryption;
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00056 NAMESPACE_END
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#endif