Secret sharing and information dispersal base class. More...

#include <ida.h>

Inheritance diagram for RawIDA:

Collaboration diagram for RawIDA:

Public Member Functions
	RawIDA (BufferedTransformation *attachment=NULL)

unsigned int	GetThreshold () const

void	AddOutputChannel (word32 channelId)

void	ChannelData (word32 channelId, const byte *inString, size_t length, bool messageEnd)

lword	InputBuffered (word32 channelId) const

void	IsolatedInitialize (const NameValuePairs &parameters=g_nullNameValuePairs)
	Initialize or reinitialize this object, without signal propagation. More...

size_t	ChannelPut2 (const std::string &channel, const byte *begin, size_t length, int messageEnd, bool blocking)
	Input multiple bytes for processing on a channel. More...

Public Member Functions inherited from AutoSignaling< Unflushable< Multichannel< Filter > > >
	AutoSignaling (int propagation=-1)
	Construct an AutoSignaling. More...

void	SetAutoSignalPropagation (int propagation)

int	GetAutoSignalPropagation () const

Public Member Functions inherited from Unflushable< Multichannel< Filter > >
bool	Flush (bool completeFlush, int propagation=-1, bool blocking=true)

bool	IsolatedFlush (bool hardFlush, bool blocking)

bool	ChannelFlush (const std::string &channel, bool hardFlush, int propagation=-1, bool blocking=true)

Public Member Functions inherited from Multichannel< Filter >
bool	Flush (bool hardFlush, int propagation=-1, bool blocking=true)
	Flush buffered input and/or output, with signal propagation. More...

bool	MessageSeriesEnd (int propagation=-1, bool blocking=true)
	Marks the end of a series of messages, with signal propagation. More...

byte *	CreatePutSpace (size_t &size)
	Request space which can be written into by the caller. More...

size_t	Put2 (const byte *inString, size_t length, int messageEnd, bool blocking)
	Input multiple bytes for processing. More...

size_t	PutModifiable2 (byte *inString, size_t length, int messageEnd, bool blocking)
	Input multiple bytes that may be modified by callee. More...

byte *	ChannelCreatePutSpace (const std::string &channel, size_t &size)

bool	ChannelPutModifiable (const std::string &channel, byte *inString, size_t length)

size_t	ChannelPutModifiable2 (const std::string &channel, byte *begin, size_t length, int messageEnd, bool blocking)

SIGNALS
Public Member Functions inherited from Filter
virtual	~Filter ()

size_t	TransferTo2 (BufferedTransformation &target, lword &transferBytes, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true)
	Transfer bytes from this object to another BufferedTransformation. More...

size_t	CopyRangeTo2 (BufferedTransformation &target, lword &begin, lword end=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true) const
	Copy bytes from this object to another BufferedTransformation. More...

void	Initialize (const NameValuePairs &parameters=g_nullNameValuePairs, int propagation=-1)
	Initialize or reinitialize this object, with signal propagation. More...

	Filter (BufferedTransformation *attachment=NULL)
	Construct a Filter. More...

bool	Attachable ()
	Determine if attachable. More...

BufferedTransformation *	AttachedTransformation ()
	Retrieve attached transformation. More...

const BufferedTransformation *	AttachedTransformation () const
	Retrieve attached transformation. More...

void	Detach (BufferedTransformation *newAttachment=NULL)
	Replace an attached transformation. More...

Public Member Functions inherited from BufferedTransformation
virtual	~BufferedTransformation ()

	BufferedTransformation ()
	Construct a BufferedTransformation. More...

BufferedTransformation &	Ref ()
	Provides a reference to this object. More...

size_t	Put (byte inByte, bool blocking=true)
	Input a byte for processing. More...

size_t	Put (const byte *inString, size_t length, bool blocking=true)
	Input a byte buffer for processing. More...

size_t	PutWord16 (word16 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true)
	Input a 16-bit word for processing. More...

size_t	PutWord32 (word32 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true)
	Input a 32-bit word for processing. More...

virtual bool	CanModifyInput () const
	Determines whether input can be modified by the callee. More...

size_t	PutModifiable (byte *inString, size_t length, bool blocking=true)
	Input multiple bytes that may be modified by callee. More...

bool	MessageEnd (int propagation=-1, bool blocking=true)
	Signals the end of messages to the object. More...

size_t	PutMessageEnd (const byte *inString, size_t length, int propagation=-1, bool blocking=true)
	Input multiple bytes for processing and signal the end of a message. More...

unsigned int	GetMaxWaitObjectCount () const
	Retrieves the maximum number of waitable objects. More...

void	GetWaitObjects (WaitObjectContainer &container, CallStack const &callStack)
	Retrieves waitable objects. More...

virtual bool	IsolatedMessageSeriesEnd (bool blocking)
	Marks the end of a series of messages, without signal propagation. More...

virtual lword	MaxRetrievable () const
	Provides the number of bytes ready for retrieval. More...

virtual bool	AnyRetrievable () const
	Determines whether bytes are ready for retrieval. More...

virtual size_t	Get (byte &outByte)
	Retrieve a 8-bit byte. More...

virtual size_t	Get (byte *outString, size_t getMax)
	Retrieve a block of bytes. More...

virtual size_t	Peek (byte &outByte) const
	Peek a 8-bit byte. More...

virtual size_t	Peek (byte *outString, size_t peekMax) const
	Peek a block of bytes. More...

size_t	GetWord16 (word16 &value, ByteOrder order=BIG_ENDIAN_ORDER)
	Retrieve a 16-bit word. More...

size_t	GetWord32 (word32 &value, ByteOrder order=BIG_ENDIAN_ORDER)
	Retrieve a 32-bit word. More...

size_t	PeekWord16 (word16 &value, ByteOrder order=BIG_ENDIAN_ORDER) const
	Peek a 16-bit word. More...

size_t	PeekWord32 (word32 &value, ByteOrder order=BIG_ENDIAN_ORDER) const
	Peek a 32-bit word. More...

lword	TransferTo (BufferedTransformation &target, lword transferMax=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL)
	move transferMax bytes of the buffered output to target as input More...

virtual lword	Skip (lword skipMax=LWORD_MAX)
	Discard skipMax bytes from the output buffer. More...

lword	CopyTo (BufferedTransformation &target, lword copyMax=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL) const
	copy copyMax bytes of the buffered output to target as input More...

lword	CopyRangeTo (BufferedTransformation &target, lword position, lword copyMax=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL) const
	Copy bytes from this object using an index to another BufferedTransformation. More...

virtual lword	TotalBytesRetrievable () const
	Provides the number of bytes ready for retrieval. More...

virtual unsigned int	NumberOfMessages () const
	Provides the number of meesages processed by this object. More...

virtual bool	AnyMessages () const
	Determines if any messages are available for retrieval. More...

virtual bool	GetNextMessage ()
	Start retrieving the next message. More...

virtual unsigned int	SkipMessages (unsigned int count=UINT_MAX)
	Skip a number of meessages. More...

unsigned int	TransferMessagesTo (BufferedTransformation &target, unsigned int count=UINT_MAX, const std::string &channel=DEFAULT_CHANNEL)
	Transfer messages from this object to another BufferedTransformation. More...

unsigned int	CopyMessagesTo (BufferedTransformation &target, unsigned int count=UINT_MAX, const std::string &channel=DEFAULT_CHANNEL) const
	Copy messages from this object to another BufferedTransformation. More...

virtual void	SkipAll ()
	Skip all messages in the series. More...

void	TransferAllTo (BufferedTransformation &target, const std::string &channel=DEFAULT_CHANNEL)
	Transfer all bytes from this object to another BufferedTransformation. More...

void	CopyAllTo (BufferedTransformation &target, const std::string &channel=DEFAULT_CHANNEL) const
	Copy messages from this object to another BufferedTransformation. More...

virtual bool	GetNextMessageSeries ()
	Retrieve the next message in a series. More...

virtual unsigned int	NumberOfMessagesInThisSeries () const
	Provides the number of messages in a series. More...

virtual unsigned int	NumberOfMessageSeries () const
	Provides the number of messages in a series. More...

size_t	TransferMessagesTo2 (BufferedTransformation &target, unsigned int &messageCount, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true)
	Transfer messages from this object to another BufferedTransformation. More...

size_t	TransferAllTo2 (BufferedTransformation &target, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true)
	Transfer all bytes from this object to another BufferedTransformation. More...

size_t	ChannelPut (const std::string &channel, byte inByte, bool blocking=true)
	Input a byte for processing on a channel. More...

size_t	ChannelPut (const std::string &channel, const byte *inString, size_t length, bool blocking=true)
	Input a byte buffer for processing on a channel. More...

size_t	ChannelPutModifiable (const std::string &channel, byte *inString, size_t length, bool blocking=true)
	Input multiple bytes that may be modified by callee on a channel. More...

size_t	ChannelPutWord16 (const std::string &channel, word16 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true)
	Input a 16-bit word for processing on a channel. More...

size_t	ChannelPutWord32 (const std::string &channel, word32 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true)
	Input a 32-bit word for processing on a channel. More...

bool	ChannelMessageEnd (const std::string &channel, int propagation=-1, bool blocking=true)
	Signal the end of a message. More...

size_t	ChannelPutMessageEnd (const std::string &channel, const byte *inString, size_t length, int propagation=-1, bool blocking=true)
	Input multiple bytes for processing and signal the end of a message. More...

virtual bool	ChannelMessageSeriesEnd (const std::string &channel, int propagation=-1, bool blocking=true)
	Marks the end of a series of messages on a channel. More...

virtual void	SetRetrievalChannel (const std::string &channel)
	Sets the default retrieval channel. More...

virtual void	Attach (BufferedTransformation *newAttachment)
	Add newAttachment to the end of attachment chain. More...

Public Member Functions inherited from Algorithm
virtual	~Algorithm ()

	Algorithm (bool checkSelfTestStatus=true)
	Interface for all crypto algorithms. More...

virtual std::string	AlgorithmName () const
	Provides the name of this algorithm. More...

Public Member Functions inherited from Clonable
virtual	~Clonable ()

virtual Clonable *	Clone () const
	Copies this object. More...

Public Member Functions inherited from Waitable
virtual	~Waitable ()

bool	Wait (unsigned long milliseconds, CallStack const &callStack)
	Wait on this object. More...

Public Member Functions inherited from NotCopyable
	NotCopyable ()

Protected Types
typedef std::map< word32, unsigned int >	InputChannelMap

Protected Member Functions
virtual void	FlushOutputQueues ()

virtual void	OutputMessageEnds ()

unsigned int	InsertInputChannel (word32 channelId)

unsigned int	LookupInputChannel (word32 channelId) const

void	ComputeV (unsigned int)

void	PrepareInterpolation ()

void	ProcessInputQueues ()

Protected Member Functions inherited from Unflushable< Multichannel< Filter > >
virtual bool	InputBufferIsEmpty () const

Protected Member Functions inherited from Filter
virtual BufferedTransformation *	NewDefaultAttachment () const

void	Insert (Filter *nextFilter)

virtual bool	ShouldPropagateMessageEnd () const

virtual bool	ShouldPropagateMessageSeriesEnd () const

void	PropagateInitialize (const NameValuePairs &parameters, int propagation)

size_t	Output (int outputSite, const byte *inString, size_t length, int messageEnd, bool blocking, const std::string &channel=DEFAULT_CHANNEL)
	Forward processed data on to attached transformation. More...

size_t	OutputModifiable (int outputSite, byte *inString, size_t length, int messageEnd, bool blocking, const std::string &channel=DEFAULT_CHANNEL)
	Output multiple bytes that may be modified by callee. More...

bool	OutputMessageEnd (int outputSite, int propagation, bool blocking, const std::string &channel=DEFAULT_CHANNEL)
	Signals the end of messages to the object. More...

bool	OutputFlush (int outputSite, bool hardFlush, int propagation, bool blocking, const std::string &channel=DEFAULT_CHANNEL)
	Flush buffered input and/or output, with signal propagation. More...

bool	OutputMessageSeriesEnd (int outputSite, int propagation, bool blocking, const std::string &channel=DEFAULT_CHANNEL)
	Marks the end of a series of messages, with signal propagation. More...

Protected Attributes
InputChannelMap	m_inputChannelMap

InputChannelMap::iterator	m_lastMapPosition

std::vector< MessageQueue >	m_inputQueues

std::vector< word32 >	m_inputChannelIds

std::vector< word32 >	m_outputChannelIds

std::vector< word32 >	m_outputToInput

std::vector< std::string >	m_outputChannelIdStrings

std::vector< ByteQueue >	m_outputQueues

int	m_threshold

unsigned int	m_channelsReady

unsigned int	m_channelsFinished

std::vector< SecBlock< word32 > >	m_v

SecBlock< word32 >	m_u

SecBlock< word32 >	m_w

SecBlock< word32 >	m_y

Protected Attributes inherited from Filter
size_t	m_inputPosition

int	m_continueAt

Additional Inherited Members
Static Public Attributes inherited from BufferedTransformation
static const std::string &	NULL_CHANNEL = DEFAULT_CHANNEL

Static Protected Member Functions inherited from BufferedTransformation
static int	DecrementPropagation (int propagation)
	Decrements the propagation count while clamping at 0. More...

Detailed Description

Secret sharing and information dispersal base class.

Since: Crypto++ 1.0

Definition at line 22 of file ida.h.

Member Typedef Documentation

typedef std::map<word32, unsigned int> RawIDA::InputChannelMap

protected

Definition at line 53 of file ida.h.

Constructor & Destructor Documentation

RawIDA::RawIDA ( BufferedTransformation * attachment = NULL )

inline

Definition at line 25 of file ida.h.

Member Function Documentation

void RawIDA::AddOutputChannel ( word32 channelId )

Definition at line 152 of file ida.cpp.

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void RawIDA::ChannelData	(	word32	channelId,
		const byte *	inString,
		size_t	length,
		bool	messageEnd
	)

Definition at line 98 of file ida.cpp.

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size_t RawIDA::ChannelPut2	(	const std::string &	channel,
		const byte *	inString,
		size_t	length,
		int	messageEnd,
		bool	blocking
	)

inlinevirtual

Input multiple bytes for processing on a channel.

Parameters

channel	the channel to process the data.
inString	the byte buffer to process.
length	the size of the string, in bytes.
messageEnd	means how many filters to signal MessageEnd() to, including this one.
blocking	specifies whether the object should block when processing input.

Returns: the number of bytes that remain in the block (i.e., bytes not processed)

Implements Multichannel< Filter >.

Definition at line 35 of file ida.h.

void RawIDA::ComputeV ( unsigned int i )

protected

Definition at line 136 of file ida.cpp.

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void RawIDA::FlushOutputQueues ( )

protectedvirtual

Reimplemented in InformationRecovery, and SecretRecovery.

Definition at line 230 of file ida.cpp.

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unsigned int RawIDA::GetThreshold ( ) const

inline

Definition at line 29 of file ida.h.

lword RawIDA::InputBuffered ( word32 channelId ) const

Definition at line 130 of file ida.cpp.

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unsigned int RawIDA::InsertInputChannel ( word32 channelId )

protected

Definition at line 61 of file ida.cpp.

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void RawIDA::IsolatedInitialize ( const NameValuePairs & parameters = g_nullNameValuePairs )

virtual

Initialize or reinitialize this object, without signal propagation.

Parameters

parameters a set of NameValuePairs to initialize this object

Exceptions

NotImplemented

IsolatedInitialize() is used to initialize or reinitialize an object using a variable number of arbitrarily typed arguments. The function avoids the need for multiple constructors providing all possible combintations of configurable parameters.

IsolatedInitialize() does not call Initialize() on attached transformations. If initialization should be propagated, then use the Initialize() function.

If a derived class does not override IsolatedInitialize(), then the base class throws NotImplemented.

Reimplemented from BufferedTransformation.

Reimplemented in InformationRecovery, and SecretRecovery.

Definition at line 28 of file ida.cpp.

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unsigned int RawIDA::LookupInputChannel ( word32 channelId ) const

protected

Definition at line 89 of file ida.cpp.

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void RawIDA::OutputMessageEnds ( )

protectedvirtual

Reimplemented in InformationRecovery, and SecretRecovery.

Definition at line 236 of file ida.cpp.

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void RawIDA::PrepareInterpolation ( )

protected

Definition at line 161 of file ida.cpp.

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void RawIDA::ProcessInputQueues ( )

protected

Definition at line 169 of file ida.cpp.

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Member Data Documentation

unsigned int RawIDA::m_channelsFinished

protected

Definition at line 61 of file ida.h.

unsigned int RawIDA::m_channelsReady

protected

Definition at line 61 of file ida.h.

std::vector<word32> RawIDA::m_inputChannelIds

protected

Definition at line 57 of file ida.h.

InputChannelMap RawIDA::m_inputChannelMap

protected

Definition at line 54 of file ida.h.

std::vector<MessageQueue> RawIDA::m_inputQueues

protected

Definition at line 56 of file ida.h.

InputChannelMap::iterator RawIDA::m_lastMapPosition

protected

Definition at line 55 of file ida.h.

std::vector<word32> RawIDA::m_outputChannelIds

protected

Definition at line 57 of file ida.h.

std::vector<std::string> RawIDA::m_outputChannelIdStrings

protected

Definition at line 58 of file ida.h.

std::vector<ByteQueue> RawIDA::m_outputQueues

protected

Definition at line 59 of file ida.h.

std::vector<word32> RawIDA::m_outputToInput

protected

Definition at line 57 of file ida.h.

int RawIDA::m_threshold

protected

Definition at line 60 of file ida.h.

SecBlock<word32> RawIDA::m_u

protected

Definition at line 63 of file ida.h.

std::vector<SecBlock<word32> > RawIDA::m_v

protected

Definition at line 62 of file ida.h.

SecBlock<word32> RawIDA::m_w

protected

Definition at line 63 of file ida.h.

SecBlock<word32> RawIDA::m_y

protected

Definition at line 63 of file ida.h.

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

src/cryptopp/ida.h
src/cryptopp/ida.cpp

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation