CFB_CipherConcretePolicy< WT, W, BASE > Class Template Reference

Base class for feedback based stream ciphers. More...

#include <strciphr.h>

Inheritance diagram for CFB_CipherConcretePolicy< WT, W, BASE >:

Collaboration diagram for CFB_CipherConcretePolicy< WT, W, BASE >:

Classes
struct	RegisterOutput

Public Types
typedef WT	WordType

Public Member Functions
unsigned int	GetAlignment () const
	Provides data alignment requirements. More...
unsigned int	GetBytesPerIteration () const
	Provides number of bytes operated upon during an iteration. More...
bool	CanIterate () const
	Flag indicating iteration support. More...
void	TransformRegister ()
	Perform one iteration in the forward direction. More...

Detailed Description

template<typename WT, unsigned int W, class BASE = CFB_CipherAbstractPolicy>
class CFB_CipherConcretePolicy< WT, W, BASE >

Base class for feedback based stream ciphers.

Template Parameters

WT	word type
W	count of words
BASE	CFB_CipherAbstractPolicy derived base class

Definition at line 406 of file strciphr.h.

Member Typedef Documentation

template<typename WT , unsigned int W, class BASE = CFB_CipherAbstractPolicy>

typedef WT CFB_CipherConcretePolicy< WT, W, BASE >::WordType

Definition at line 408 of file strciphr.h.

Member Function Documentation

template<typename WT , unsigned int W, class BASE = CFB_CipherAbstractPolicy>

bool CFB_CipherConcretePolicy< WT, W, BASE >::CanIterate ( ) const

inline

Flag indicating iteration support.

Returns

true if the cipher supports iteration, false otherwise

Definition at line 423 of file strciphr.h.

template<typename WT , unsigned int W, class BASE = CFB_CipherAbstractPolicy>

unsigned int CFB_CipherConcretePolicy< WT, W, BASE >::GetAlignment ( ) const

inline

Provides data alignment requirements.

Returns

data alignment requirements, in bytes

Internally, the default implementation returns 1. If the stream cipher is implemented using an SSE2 ASM or intrinsics, then the value returned is usually 16.

Definition at line 414 of file strciphr.h.

template<typename WT , unsigned int W, class BASE = CFB_CipherAbstractPolicy>

unsigned int CFB_CipherConcretePolicy< WT, W, BASE >::GetBytesPerIteration ( ) const

inline

Provides number of bytes operated upon during an iteration.

Returns

bytes operated upon during an iteration, in bytes

See also

GetOptimalBlockSize()

Definition at line 419 of file strciphr.h.

template<typename WT , unsigned int W, class BASE = CFB_CipherAbstractPolicy>

void CFB_CipherConcretePolicy< WT, W, BASE >::TransformRegister ( )

inline

Perform one iteration in the forward direction.

Definition at line 426 of file strciphr.h.

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The documentation for this class was generated from the following file:

• src/cryptopp/strciphr.h