sosemanuk.h

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// sosemanuk.h - originally written and placed in the public domain by Wei Dai
 
 
#ifndef CRYPTOPP_SOSEMANUK_H
#define CRYPTOPP_SOSEMANUK_H
 
#include "strciphr.h"
#include "secblock.h"
 
// Clang 3.3 integrated assembler crash on Linux. Clang 3.4 due to compiler
// error with .intel_syntax, http://llvm.org/bugs/show_bug.cgi?id=24232
#if CRYPTOPP_BOOL_X32 || defined(CRYPTOPP_DISABLE_MIXED_ASM)
# define CRYPTOPP_DISABLE_SOSEMANUK_ASM 1
#endif
 
NAMESPACE_BEGIN(CryptoPP)
 
 
struct SosemanukInfo : public VariableKeyLength<16, 1, 32, 1, SimpleKeyingInterface::UNIQUE_IV, 16>
{
        CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() {return "Sosemanuk";}
};
 
class SosemanukPolicy : public AdditiveCipherConcretePolicy<word32, 20>, public SosemanukInfo
{
protected:
        std::string AlgorithmProvider() const;
        void CipherSetKey(const NameValuePairs &params, const byte *key, size_t length);
        void OperateKeystream(KeystreamOperation operation, byte *output, const byte *input, size_t iterationCount);
        void CipherResynchronize(byte *keystreamBuffer, const byte *iv, size_t length);
        bool CipherIsRandomAccess() const {return false;}
#if (CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64)
        unsigned int GetAlignment() const;
        unsigned int GetOptimalBlockSize() const;
#endif
 
        FixedSizeSecBlock<word32, 25*4> m_key;
        FixedSizeAlignedSecBlock<word32, 12> m_state;
};
 
struct Sosemanuk : public SosemanukInfo, public SymmetricCipherDocumentation
{
        typedef SymmetricCipherFinal<ConcretePolicyHolder<SosemanukPolicy, AdditiveCipherTemplate<> >, SosemanukInfo> Encryption;
        typedef Encryption Decryption;
};
 
NAMESPACE_END
 
#endif