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sosemanuk.h

00001 #ifndef CRYPTOPP_SOSEMANUK_H
00002 #define CRYPTOPP_SOSEMANUK_H
00003 
00004 #include "strciphr.h"
00005 
00006 NAMESPACE_BEGIN(CryptoPP)
00007 
00008 //! algorithm info
00009 struct SosemanukInfo : public VariableKeyLength<16, 1, 32, 1, SimpleKeyingInterface::UNIQUE_IV, 16>
00010 {
00011     static const char * StaticAlgorithmName() {return "Sosemanuk";}
00012 };
00013 
00014 //! _
00015 class SosemanukPolicy : public AdditiveCipherConcretePolicy<word32, 20>, public SosemanukInfo
00016 {
00017 protected:
00018     void CipherSetKey(const NameValuePairs &params, const byte *key, size_t length);
00019     void OperateKeystream(KeystreamOperation operation, byte *output, const byte *input, size_t iterationCount);
00020     void CipherResynchronize(byte *keystreamBuffer, const byte *iv, size_t length);
00021     bool CipherIsRandomAccess() const {return false;}
00022 #if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X64
00023     unsigned int GetAlignment() const;
00024     unsigned int GetOptimalBlockSize() const;
00025 #endif
00026 
00027     FixedSizeSecBlock<word32, 25*4> m_key;
00028     FixedSizeAlignedSecBlock<word32, 12> m_state;
00029 };
00030 
00031 //! <a href="http://www.cryptolounge.org/wiki/Sosemanuk">Sosemanuk</a>
00032 struct Sosemanuk : public SosemanukInfo, public SymmetricCipherDocumentation
00033 {
00034     typedef SymmetricCipherFinal<ConcretePolicyHolder<SosemanukPolicy, AdditiveCipherTemplate<> >, SosemanukInfo> Encryption;
00035     typedef Encryption Decryption;
00036 };
00037 
00038 NAMESPACE_END
00039 
00040 #endif

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