You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
207 lines
8.4 KiB
207 lines
8.4 KiB
![]()
4 years ago
|
// speck.h - written and placed in the public domain by Jeffrey Walton
|
||
|
|
||
|
/// \file speck.h
|
||
|
/// \brief Classes for the Speck block cipher
|
||
|
/// \details Speck is a block cipher designed by Ray Beaulieu, Douglas Shors, Jason Smith,
|
||
|
/// Stefan Treatman-Clark, Bryan Weeks and Louis Wingers.
|
||
|
/// \sa <A HREF="http://eprint.iacr.org/2013/404">The SIMON and SPECK Families of
|
||
|
/// Lightweight Block Ciphers</A>, <A HREF="http://iadgov.github.io/simon-speck/">
|
||
|
/// The Simon and Speck GitHub</A> and <A HREF="https://www.cryptopp.com/wiki/SPECK">
|
||
|
/// SPECK</A> on the Crypto++ wiki.
|
||
|
/// \since Crypto++ 6.0
|
||
|
|
||
|
#ifndef CRYPTOPP_SPECK_H
|
||
|
#define CRYPTOPP_SPECK_H
|
||
|
|
||
|
#include "config.h"
|
||
|
#include "seckey.h"
|
||
|
#include "secblock.h"
|
||
|
|
||
|
#if CRYPTOPP_BOOL_X64 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X86 || \
|
||
|
CRYPTOPP_BOOL_ARM32 || CRYPTOPP_BOOL_ARMV8 || \
|
||
|
CRYPTOPP_BOOL_PPC32 || CRYPTOPP_BOOL_PPC64
|
||
|
# ifndef CRYPTOPP_DISABLE_SPECK_SIMD
|
||
|
# define CRYPTOPP_SPECK128_ADVANCED_PROCESS_BLOCKS 1
|
||
|
# endif
|
||
|
#endif
|
||
|
|
||
|
// Yet another SunStudio/SunCC workaround. Failed self tests
|
||
|
// in SSE code paths on i386 for SunStudio 12.3 and below.
|
||
|
#if defined(__SUNPRO_CC) && (__SUNPRO_CC <= 0x5120)
|
||
|
# undef CRYPTOPP_SPECK128_ADVANCED_PROCESS_BLOCKS
|
||
|
#endif
|
||
|
|
||
|
NAMESPACE_BEGIN(CryptoPP)
|
||
|
|
||
|
/// \brief SPECK block cipher information
|
||
|
/// \tparam L block size of the cipher, in bytes
|
||
|
/// \tparam D default key length, in bytes
|
||
|
/// \tparam N minimum key length, in bytes
|
||
|
/// \tparam M maximum key length, in bytes
|
||
|
/// \since Crypto++ 6.0
|
||
|
template <unsigned int L, unsigned int D, unsigned int N, unsigned int M>
|
||
|
struct SPECK_Info : public FixedBlockSize<L>, VariableKeyLength<D, N, M>
|
||
|
{
|
||
|
/// \brief The algorithm name
|
||
|
/// \returns the algorithm name
|
||
|
/// \details StaticAlgorithmName returns the algorithm's name as a static
|
||
|
/// member function.
|
||
|
static const std::string StaticAlgorithmName()
|
||
|
{
|
||
|
// Format is Cipher-Blocksize(Keylength)
|
||
|
return "SPECK-" + IntToString(L*8);
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// \brief SPECK block cipher base class
|
||
|
/// \tparam W the word type
|
||
|
/// \details User code should use SPECK64 or SPECK128
|
||
|
/// \sa SPECK64, SPECK128, <a href="http://www.cryptopp.com/wiki/SPECK">SPECK</a>
|
||
|
/// \since Crypto++ 6.0
|
||
|
template <class W>
|
||
|
struct SPECK_Base
|
||
|
{
|
||
|
virtual ~SPECK_Base() {}
|
||
|
SPECK_Base() : m_kwords(0), m_rounds(0) {}
|
||
|
|
||
|
typedef SecBlock<W, AllocatorWithCleanup<W, true> > AlignedSecBlock;
|
||
|
mutable AlignedSecBlock m_wspace; // workspace
|
||
|
AlignedSecBlock m_rkeys; // round keys
|
||
|
unsigned int m_kwords; // number of key words
|
||
|
unsigned int m_rounds; // number of rounds
|
||
|
};
|
||
|
|
||
|
/// \brief SPECK 64-bit block cipher
|
||
|
/// \details Speck is a block cipher designed by Ray Beaulieu, Douglas Shors, Jason Smith,
|
||
|
/// Stefan Treatman-Clark, Bryan Weeks and Louis Wingers.
|
||
|
/// \details SPECK64 provides 64-bit block size. The valid key sizes are 96-bit and 128-bit.
|
||
|
/// \sa SPECK64, SPECK128, <A HREF="http://eprint.iacr.org/2013/404">The SIMON and SPECK
|
||
|
/// Families of Lightweight Block Ciphers</A>, <A HREF="http://iadgov.github.io/simon-speck/">
|
||
|
/// The Simon and Speck GitHub</A>, <a href="http://www.cryptopp.com/wiki/SPECK">SPECK</a> on the
|
||
|
/// Crypto++ wiki
|
||
|
/// \since Crypto++ 6.0
|
||
|
class CRYPTOPP_NO_VTABLE SPECK64 : public SPECK_Info<8, 12, 12, 16>, public BlockCipherDocumentation
|
||
|
{
|
||
|
public:
|
||
|
/// \brief SPECK64 block cipher base implementation
|
||
|
/// \details Provides implementation common to encryption and decryption
|
||
|
/// \since Crypto++ 6.0
|
||
|
class CRYPTOPP_NO_VTABLE Base : protected SPECK_Base<word32>, public BlockCipherImpl<SPECK_Info<8, 12, 12, 16> >
|
||
|
{
|
||
|
public:
|
||
|
/// \brief The algorithm name
|
||
|
/// \returns the algorithm name
|
||
|
/// \details AlgorithmName returns the algorithm's name as a
|
||
|
/// member function.
|
||
|
std::string AlgorithmName() const {
|
||
|
return StaticAlgorithmName() + (m_kwords == 0 ? "" :
|
||
|
"(" + IntToString(m_kwords*sizeof(word32)*8) + ")");
|
||
|
}
|
||
|
|
||
|
std::string AlgorithmProvider() const;
|
||
|
|
||
|
/// \brief Provides input and output data alignment for optimal performance.
|
||
|
/// \return the input data alignment that provides optimal performance
|
||
|
/// \sa GetAlignment() and OptimalBlockSize()
|
||
|
unsigned int OptimalDataAlignment() const;
|
||
|
|
||
|
protected:
|
||
|
void UncheckedSetKey(const byte *userKey, unsigned int keyLength, const NameValuePairs ¶ms);
|
||
|
};
|
||
|
|
||
|
/// \brief SPECK64 encryption transformation
|
||
|
/// \details Enc provides the encryption transformation.
|
||
|
/// All key sizes are supported.
|
||
|
/// \since Crypto++ 6.0
|
||
|
class CRYPTOPP_NO_VTABLE Enc : public Base
|
||
|
{
|
||
|
public:
|
||
|
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
|
||
|
};
|
||
|
|
||
|
/// \brief SPECK64 decryption transformation
|
||
|
/// \details Dec provides the decryption transformation.
|
||
|
/// All key sizes are supported.
|
||
|
/// \since Crypto++ 6.0
|
||
|
class CRYPTOPP_NO_VTABLE Dec : public Base
|
||
|
{
|
||
|
public:
|
||
|
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
|
||
|
};
|
||
|
|
||
|
typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
|
||
|
typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
|
||
|
};
|
||
|
|
||
|
/// \brief SPECK 128-bit block cipher
|
||
|
/// \details Speck is a block cipher designed by Ray Beaulieu, Douglas Shors, Jason Smith,
|
||
|
/// Stefan Treatman-Clark, Bryan Weeks and Louis Wingers.
|
||
|
/// \details SPECK128 provides 128-bit block size. The valid key sizes are 128-bit, 192-bit and 256-bit.
|
||
|
/// \sa SPECK64, SPECK128, <A HREF="http://eprint.iacr.org/2013/404">The SIMON and SPECK
|
||
|
/// Families of Lightweight Block Ciphers</A>, <A HREF="http://iadgov.github.io/simon-speck/">
|
||
|
/// The Simon and Speck GitHub</A>, <a href="http://www.cryptopp.com/wiki/SPECK">SPECK</a> on the
|
||
|
/// Crypto++ wiki
|
||
|
/// \since Crypto++ 6.0
|
||
|
class CRYPTOPP_NO_VTABLE SPECK128 : public SPECK_Info<16, 16, 16, 32>, public BlockCipherDocumentation
|
||
|
{
|
||
|
public:
|
||
|
/// \brief SPECK128 block cipher base implementation
|
||
|
/// \details Provides implementation common to encryption and decryption
|
||
|
/// \since Crypto++ 6.0
|
||
|
class CRYPTOPP_NO_VTABLE Base : protected SPECK_Base<word64>, public BlockCipherImpl<SPECK_Info<16, 16, 16, 32> >
|
||
|
{
|
||
|
public:
|
||
|
/// \brief The algorithm name
|
||
|
/// \returns the algorithm name
|
||
|
/// \details AlgorithmName returns the algorithm's name as a
|
||
|
/// member function.
|
||
|
std::string AlgorithmName() const {
|
||
|
return StaticAlgorithmName() + (m_kwords == 0 ? "" :
|
||
|
"(" + IntToString(m_kwords*sizeof(word64)*8) + ")");
|
||
|
}
|
||
|
|
||
|
std::string AlgorithmProvider() const;
|
||
|
|
||
|
/// \brief Provides input and output data alignment for optimal performance.
|
||
|
/// \return the input data alignment that provides optimal performance
|
||
|
/// \sa GetAlignment() and OptimalBlockSize()
|
||
|
unsigned int OptimalDataAlignment() const;
|
||
|
|
||
|
protected:
|
||
|
void UncheckedSetKey(const byte *userKey, unsigned int keyLength, const NameValuePairs ¶ms);
|
||
|
};
|
||
|
|
||
|
/// \brief SPECK128 encryption transformation
|
||
|
/// \details Enc provides the encryption transformation.
|
||
|
/// All key sizes are supported.
|
||
|
/// \since Crypto++ 6.0
|
||
|
class CRYPTOPP_NO_VTABLE Enc : public Base
|
||
|
{
|
||
|
public:
|
||
|
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
|
||
|
#if CRYPTOPP_SPECK128_ADVANCED_PROCESS_BLOCKS
|
||
|
size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const;
|
||
|
#endif
|
||
|
};
|
||
|
|
||
|
/// \brief SPECK128 decryption transformation
|
||
|
/// \details Dec provides the decryption transformation.
|
||
|
/// All key sizes are supported.
|
||
|
/// \since Crypto++ 6.0
|
||
|
class CRYPTOPP_NO_VTABLE Dec : public Base
|
||
|
{
|
||
|
public:
|
||
|
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
|
||
|
#if CRYPTOPP_SPECK128_ADVANCED_PROCESS_BLOCKS
|
||
|
size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const;
|
||
|
#endif
|
||
|
};
|
||
|
|
||
|
typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
|
||
|
typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
|
||
|
};
|
||
|
|
||
|
NAMESPACE_END
|
||
|
|
||
|
#endif // CRYPTOPP_SPECK_H
|