DL_SignerBase< T > Class Template Reference

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

#include <pubkey.h>

Inheritance diagram for DL_SignerBase< T >:

Public Member Functions
void	RawSign (const Integer &k, const Integer &e, Integer &r, Integer &s) const
	Testing interface.
void	InputRecoverableMessage (PK_MessageAccumulator &messageAccumulator, const byte *recoverableMessage, size_t recoverableMessageLength) const
	Input a recoverable message to an accumulator.
size_t	SignAndRestart (RandomNumberGenerator &rng, PK_MessageAccumulator &messageAccumulator, byte *signature, bool restart) const
	Sign and restart messageAccumulator.
Public Member Functions inherited from DL_SignatureSchemeBase< PK_Signer, DL_PrivateKey< T > >
size_t	SignatureLength () const
	Provides the signature length.
size_t	MaxRecoverableLength () const
	Provides the maximum recoverable length.
size_t	MaxRecoverableLengthFromSignatureLength (size_t signatureLength) const
	Provides the maximum recoverable length.
bool	IsProbabilistic () const
	Determines if the scheme is probabilistic.
bool	AllowNonrecoverablePart () const
	Determines if the scheme has non-recoverable part.
bool	RecoverablePartFirst () const
	Determines if the scheme allows recoverable part first.
Public Member Functions inherited from PK_Signer
virtual PK_MessageAccumulator *	NewSignatureAccumulator (RandomNumberGenerator &rng) const =0
	Create a new HashTransformation to accumulate the message to be signed.
virtual size_t	Sign (RandomNumberGenerator &rng, PK_MessageAccumulator *messageAccumulator, byte *signature) const
	Sign and delete the messageAccumulator.
virtual size_t	SignMessage (RandomNumberGenerator &rng, const byte *message, size_t messageLen, byte *signature) const
	Sign a message.
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.
Public Member Functions inherited from 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.
virtual bool	SignatureUpfront () const
	Determines whether the signature must be input before the message.
Public Member Functions inherited from PrivateKeyAlgorithm
CryptoMaterial &	AccessMaterial ()
	Retrieves a reference to a Private Key.
const CryptoMaterial &	GetMaterial () const
	Retrieves a reference to a Private Key.
virtual PrivateKey &	AccessPrivateKey ()=0
	Retrieves a reference to a Private Key.
virtual const PrivateKey &	GetPrivateKey () const
	Retrieves a reference to a Private Key.
Public Member Functions inherited from Algorithm
	Algorithm (bool checkSelfTestStatus=true)
	Interface for all crypto algorithms.
virtual std::string	AlgorithmName () const
	Provides the name of this algorithm.
virtual std::string	AlgorithmProvider () const
	Retrieve the provider of this algorithm.
Public Member Functions inherited from Clonable
virtual Clonable *	Clone () const
	Copies this object.

Detailed Description

template<class T>
class DL_SignerBase< T >

Discrete Log (DL) signature scheme signer base implementation.

Template Parameters

T	Field element type or class

Field element T can be Integer, ECP or EC2N.

Definition at line 1600 of file pubkey.h.

Constructor & Destructor Documentation

~DL_SignerBase()

template<class T >

virtual DL_SignerBase< T >::~DL_SignerBase ( )

inlinevirtual

Definition at line 1603 of file pubkey.h.

Member Function Documentation

RawSign()

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 1610 of file pubkey.h.

InputRecoverableMessage()

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 1620 of file pubkey.h.

SignAndRestart()

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 1630 of file pubkey.h.

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

• pubkey.h