Discrete Log (DL) signature scheme signer base implementation. More...

#include <pubkey.h>

Inheritance diagram for DL_SignerBase< T >:

Collaboration diagram for DL_SignerBase< T >:

Public Member Functions
virtual	~DL_SignerBase ()

void	RawSign (const Integer &k, const Integer &e, Integer &r, Integer &s) const
	Testing interface. More...

void	InputRecoverableMessage (PK_MessageAccumulator &messageAccumulator, const byte *recoverableMessage, size_t recoverableMessageLength) const
	Input a recoverable message to an accumulator. More...

size_t	SignAndRestart (RandomNumberGenerator &rng, PK_MessageAccumulator &messageAccumulator, byte *signature, bool restart) const
	Sign and restart messageAccumulator. More...

Public Member Functions inherited from DL_SignatureSchemeBase< PK_Signer, DL_PrivateKey< T > >
virtual	~DL_SignatureSchemeBase ()

size_t	SignatureLength () const
	Provides the signature length. More...

size_t	MaxRecoverableLength () const
	Provides the maximum recoverable length. More...

size_t	MaxRecoverableLengthFromSignatureLength (size_t signatureLength) const
	Provides the maximum recoverable length. More...

bool	IsProbabilistic () const
	Determines if the scheme is probabilistic. More...

bool	AllowNonrecoverablePart () const
	Determines if the scheme has non-recoverable part. More...

bool	RecoverablePartFirst () const
	Determines if the scheme allows recoverable part first. More...

Public Member Functions inherited from PK_Signer
virtual	~PK_Signer ()

virtual PK_MessageAccumulator *	NewSignatureAccumulator (RandomNumberGenerator &rng) const =0
	Create a new HashTransformation to accumulate the message to be signed. More...

virtual size_t	Sign (RandomNumberGenerator &rng, PK_MessageAccumulator messageAccumulator, byte signature) const
	Sign and delete the messageAccumulator. More...

virtual size_t	SignMessage (RandomNumberGenerator &rng, const byte message, size_t messageLen, byte signature) const
	Sign a message. More...

virtual size_t	SignMessageWithRecovery (RandomNumberGenerator &rng, const byte recoverableMessage, size_t recoverableMessageLength, const byte nonrecoverableMessage, size_t nonrecoverableMessageLength, byte *signature) const
	Sign a recoverable message. More...

Public Member Functions inherited from PK_SignatureScheme
virtual	~PK_SignatureScheme ()

virtual size_t	MaxSignatureLength (size_t recoverablePartLength=0) const
	Provides the maximum signature length produced given the length of the recoverable message part. More...

virtual bool	SignatureUpfront () const
	Determines whether the signature must be input before the message. More...

Public Member Functions inherited from PrivateKeyAlgorithm
virtual	~PrivateKeyAlgorithm ()

CryptoMaterial &	AccessMaterial ()
	Retrieves a reference to a Private Key. More...

const CryptoMaterial &	GetMaterial () const
	Retrieves a reference to a Private Key. More...

virtual PrivateKey &	AccessPrivateKey ()=0
	Retrieves a reference to a Private Key. More...

virtual const PrivateKey &	GetPrivateKey () const
	Retrieves a reference to a Private Key. More...

Public Member Functions inherited from AsymmetricAlgorithm
virtual	~AsymmetricAlgorithm ()

void	BERDecode (BufferedTransformation &bt)
	Loads this object from a BufferedTransformation. More...

void	DEREncode (BufferedTransformation &bt) const
	Saves this object to a BufferedTransformation. 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...

Protected Member Functions
void	RestartMessageAccumulator (RandomNumberGenerator &rng, PK_MessageAccumulatorBase &ma) const

Protected Member Functions inherited from DL_SignatureSchemeBase< PK_Signer, DL_PrivateKey< T > >
size_t	MessageRepresentativeLength () const

size_t	MessageRepresentativeBitLength () const

virtual bool	IsDeterministic () const

virtual const DL_ElgamalLikeSignatureAlgorithm< typename DL_PrivateKey< T >::Element > &	GetSignatureAlgorithm () const =0

virtual const PK_SignatureMessageEncodingMethod &	GetMessageEncodingInterface () const =0

virtual HashIdentifier	GetHashIdentifier () const =0

virtual size_t	GetDigestSize () const =0

Protected Member Functions inherited from DL_Base< DL_PrivateKey< T > >
virtual	~DL_Base ()

const DL_GroupParameters< Element > &	GetAbstractGroupParameters () const

DL_GroupParameters< Element > &	AccessAbstractGroupParameters ()

virtual KeyInterface &	AccessKeyInterface ()=0

virtual const KeyInterface &	GetKeyInterface () const =0

Additional Inherited Members
Protected Types inherited from DL_Base< DL_PrivateKey< T > >
typedef DL_PrivateKey< T >	KeyInterface

typedef DL_PrivateKey< T >::Element	Element

Detailed Description

template<class T>
class DL_SignerBase< T >

Discrete Log (DL) signature scheme signer base implementation.

Template Parameters

T

Definition at line 1410 of file pubkey.h.

Constructor & Destructor Documentation

template<class T>

virtual DL_SignerBase< T >::~DL_SignerBase ( )

inlinevirtual

Definition at line 1413 of file pubkey.h.

Member Function Documentation

template<class T>

void DL_SignerBase< T >::InputRecoverableMessage	(	PK_MessageAccumulator &	messageAccumulator,
		const byte *	recoverableMessage,
		size_t	recoverableMessageLength
	)		const

inlinevirtual

Input a recoverable message to an accumulator.

Parameters

messageAccumulator	a reference to a PK_MessageAccumulator
recoverableMessage	a pointer to the recoverable message part to be signed
recoverableMessageLength	the size of the recoverable message part

Implements PK_Signer.

Definition at line 1430 of file pubkey.h.

template<class T>

void DL_SignerBase< T >::RawSign	(	const Integer &	k,
		const Integer &	e,
		Integer &	r,
		Integer &	s
	)		const

inline

Testing interface.

Parameters

k	Integer
e	Integer
r	Integer
s	Integer

Definition at line 1420 of file pubkey.h.

template<class T>

void DL_SignerBase< T >::RestartMessageAccumulator	(	RandomNumberGenerator &	rng,
		PK_MessageAccumulatorBase &	ma
	)		const

inlineprotected

Definition at line 1500 of file pubkey.h.

template<class T>

size_t DL_SignerBase< T >::SignAndRestart	(	RandomNumberGenerator &	rng,
		PK_MessageAccumulator &	messageAccumulator,
		byte *	signature,
		bool	restart
	)		const

inlinevirtual

Sign and restart messageAccumulator.

Parameters

rng	a RandomNumberGenerator derived class
messageAccumulator	a pointer to a PK_MessageAccumulator derived class
signature	a block of bytes for the signature
restart	flag indicating whether the messageAccumulator should be restarted

Returns: actual signature length

Precondition: COUNTOF(signature) == MaxSignatureLength()

Implements PK_Signer.

Definition at line 1440 of file pubkey.h.

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

src/cryptopp/pubkey.h

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

template<class T> class DL_SignerBase< T >

Constructor & Destructor Documentation

Member Function Documentation

template<class T>
class DL_SignerBase< T >