XSalsa20 stream cipher operation. More...

#include <salsa.h>

Inheritance diagram for XSalsa20_Policy:

Public Member Functions
void	CipherSetKey (const NameValuePairs &params, const byte *key, size_t length)
	Key the cipher.

void	CipherResynchronize (byte keystreamBuffer, const byte IV, size_t length)
	Resynchronize the cipher.

Public Member Functions inherited from AdditiveCipherConcretePolicy< word32, 16 >
	CRYPTOPP_CONSTANT (BYTES_PER_ITERATION=sizeof(WordType) *W)
	Number of bytes for an iteration.

unsigned int	GetAlignment () const
	Provides data alignment requirements.

unsigned int	GetBytesPerIteration () const
	Provides number of bytes operated upon during an iteration.

unsigned int	GetIterationsToBuffer () const
	Provides buffer size based on iterations.

bool	CanOperateKeystream () const
	Flag indicating.

Public Member Functions inherited from AdditiveCipherAbstractPolicy
virtual unsigned int	GetOptimalBlockSize () const
	Provides number of ideal bytes to process.

virtual void	WriteKeystream (byte *keystream, size_t iterationCount)
	Generate the keystream.

Protected Attributes
FixedSizeSecBlock< word32, 8 >	m_key

Protected Attributes inherited from Salsa20_Policy
FixedSizeAlignedSecBlock< word32, 16 >	m_state

int	m_rounds

Additional Inherited Members
Public Types inherited from AdditiveCipherConcretePolicy< word32, 16 >
typedef word32	WordType
	Word type for the cipher.

Protected Member Functions inherited from Salsa20_Policy
void	OperateKeystream (KeystreamOperation operation, byte output, const byte input, size_t iterationCount)
	Operates the keystream.

bool	CipherIsRandomAccess () const
	Flag indicating random access.

void	SeekToIteration (lword iterationCount)
	Seeks to a random position in the stream.

std::string	AlgorithmProvider () const
	Retrieve the provider of this algorithm.

	CRYPTOPP_CONSTANT (ROUNDS=20)

Detailed Description

XSalsa20 stream cipher operation.

Definition at line 82 of file salsa.h.

Member Function Documentation

void XSalsa20_Policy::CipherResynchronize	(	byte *	keystreamBuffer,
		const byte *	iv,
		size_t	length
	)

virtual

Resynchronize the cipher.

Parameters

keystreamBuffer	the keystream buffer
iv	a byte array used to resynchronize the cipher
length	the size of the IV array

Reimplemented from Salsa20_Policy.

Definition at line 725 of file salsa.cpp.

void XSalsa20_Policy::CipherSetKey	(	const NameValuePairs &	params,
		const byte *	key,
		size_t	length
	)

virtual

Key the cipher.

Parameters

params	set of NameValuePairs use to initialize this object
key	a byte array used to key the cipher
length	the size of the key array

Reimplemented from Salsa20_Policy.

Definition at line 708 of file salsa.cpp.

FixedSizeSecBlock<word32, 8> XSalsa20_Policy::m_key

protected

Definition at line 89 of file salsa.h.

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

G:/work/subversion/scol-technologies/trunk/scol/plugins/security/cryptopp/salsa.h
G:/work/subversion/scol-technologies/trunk/scol/plugins/security/cryptopp/salsa.cpp