00001 #ifndef CRYPTOPP_SKIPJACK_H
00002 #define CRYPTOPP_SKIPJACK_H
00003
00004
00005
00006
00007 #include "seckey.h"
00008 #include "secblock.h"
00009
00010 NAMESPACE_BEGIN(CryptoPP)
00011
00012
00013 struct SKIPJACK_Info : public FixedBlockSize<8>, public FixedKeyLength<10>
00014 {
00015 CRYPTOPP_DLL static const char * CRYPTOPP_API StaticAlgorithmName() {return "SKIPJACK";}
00016 };
00017
00018
00019 class SKIPJACK : public SKIPJACK_Info, public BlockCipherDocumentation
00020 {
00021 class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<SKIPJACK_Info>
00022 {
00023 public:
00024 void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs ¶ms);
00025
00026 protected:
00027 static const byte fTable[256];
00028
00029 FixedSizeSecBlock<byte[256], 10> tab;
00030 };
00031
00032 class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Enc : public Base
00033 {
00034 public:
00035 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
00036 private:
00037 static const byte Se[256];
00038 static const word32 Te[4][256];
00039 };
00040
00041 class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Dec : public Base
00042 {
00043 public:
00044 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
00045 private:
00046 static const byte Sd[256];
00047 static const word32 Td[4][256];
00048 };
00049
00050 public:
00051 typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
00052 typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
00053 };
00054
00055 typedef SKIPJACK::Encryption SKIPJACKEncryption;
00056 typedef SKIPJACK::Decryption SKIPJACKDecryption;
00057
00058 NAMESPACE_END
00059
00060 #endif