sosemanuk.h
Go to the documentation of this file.
// sosemanuk.h - written and placed in the public domain by Wei Dai
//! \file sosemanuk.h
//! \brief Classes for Sosemanuk stream cipher
#ifndef CRYPTOPP_SOSEMANUK_H
#define CRYPTOPP_SOSEMANUK_H
#include "strciphr.h"
#include "secblock.h"
// Clang due to "Inline assembly operands don't work with .intel_syntax"
// https://llvm.org/bugs/show_bug.cgi?id=24232
#if CRYPTOPP_BOOL_X32 || defined(CRYPTOPP_DISABLE_INTEL_ASM)
# define CRYPTOPP_DISABLE_SOSEMANUK_ASM
#endif
NAMESPACE_BEGIN(CryptoPP)
//! algorithm info
struct SosemanukInfo : public VariableKeyLength<16, 1, 32, 1, SimpleKeyingInterface::UNIQUE_IV, 16>
{
CRYPTOPP_CONSTEXPR static const char *StaticAlgorithmName() {return "Sosemanuk";}
};
//! _
class SosemanukPolicy : public AdditiveCipherConcretePolicy<word32, 20>, public SosemanukInfo
{
protected:
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) && !defined(CRYPTOPP_DISABLE_SOSEMANUK_ASM)
unsigned int GetAlignment() const;
unsigned int GetOptimalBlockSize() const;
#endif
FixedSizeSecBlock<word32, 25*4> m_key;
FixedSizeAlignedSecBlock<word32, 12> m_state;
};
//! <a href="http://www.cryptolounge.org/wiki/Sosemanuk">Sosemanuk</a>
struct Sosemanuk : public SosemanukInfo, public SymmetricCipherDocumentation
{
typedef SymmetricCipherFinal<ConcretePolicyHolder<SosemanukPolicy, AdditiveCipherTemplate<> >, SosemanukInfo> Encryption;
typedef Encryption Decryption;
};
NAMESPACE_END
#endif
SosemanukPolicy
_
Definition: sosemanuk.h:27
AdditiveCipherConcretePolicy
Base class for additive stream ciphers.
Definition: strciphr.h:188
AdditiveCipherAbstractPolicy::GetOptimalBlockSize
virtual unsigned int GetOptimalBlockSize() const
Provides number of ideal bytes to process.
Definition: strciphr.h:127
AdditiveCipherConcretePolicy< word32, 20 >::GetAlignment
unsigned int GetAlignment() const
Provides data alignment requirements.
Definition: strciphr.h:198
Sosemanuk
Sosemanuk
Definition: sosemanuk.h:44
secblock.h
Classes and functions for secure memory allocations.
SymmetricCipher
Interface for one direction (encryption or decryption) of a stream cipher or cipher mode...
Definition: cryptlib.h:1099
SimpleKeyingInterface
Interface for algorithms that take byte strings as keys.
Definition: cryptlib.h:524
FixedSizeAlignedSecBlock< word32, 12 >
SosemanukInfo
algorithm info
Definition: sosemanuk.h:21
FixedSizeSecBlock< word32, 25 *4 >
VariableKeyLength
Inherited by keyed algorithms with variable key length.
Definition: seckey.h:177
strciphr.h
Classes for implementing stream ciphers.
SymmetricCipherDocumentation
Provides Encryption and Decryption typedefs used by derived classes to implement a symmetric cipher...
Definition: seckey.h:439
KeystreamOperation
KeystreamOperation
Keystream operation flags.
Definition: strciphr.h:92
CryptoPP
Crypto++ library namespace.
SymmetricCipherFinal
SymmetricCipher implementation.
Definition: strciphr.h:582
NameValuePairs
Interface for retrieving values given their names.
Definition: cryptlib.h:277