Discret Log (DL) Verifier base class. More...

#include <pubkey.h>

Inheritance diagram for DL_VerifierBase< T >:

Public Member Functions
void	InputSignature (PK_MessageAccumulator &messageAccumulator, const byte *signature, size_t signatureLength) const
	Input signature into a message accumulator. More...

bool	VerifyAndRestart (PK_MessageAccumulator &messageAccumulator) const
	Check whether messageAccumulator contains a valid signature and message, and restart messageAccumulator. More...

DecodingResult	RecoverAndRestart (byte *recoveredMessage, PK_MessageAccumulator &messageAccumulator) const
	Recover a message from its signature. More...

Public Member Functions inherited from DL_SignatureSchemeBase< PK_Verifier, DL_PublicKey< T > >
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_Verifier
virtual PK_MessageAccumulator *	NewVerificationAccumulator () const =0
	Create a new HashTransformation to accumulate the message to be verified. More...

virtual void	InputSignature (PK_MessageAccumulator &messageAccumulator, const byte *signature, size_t signatureLength) const =0
	Input signature into a message accumulator. More...

virtual bool	Verify (PK_MessageAccumulator *messageAccumulator) const
	Check whether messageAccumulator contains a valid signature and message. More...

virtual bool	VerifyAndRestart (PK_MessageAccumulator &messageAccumulator) const =0
	Check whether messageAccumulator contains a valid signature and message, and restart messageAccumulator. More...

virtual bool	VerifyMessage (const byte message, size_t messageLen, const byte signature, size_t signatureLen) const
	Check whether input signature is a valid signature for input message. More...

virtual DecodingResult	Recover (byte recoveredMessage, PK_MessageAccumulator messageAccumulator) const
	Recover a message from its signature. More...

virtual DecodingResult	RecoverAndRestart (byte *recoveredMessage, PK_MessageAccumulator &messageAccumulator) const =0
	Recover a message from its signature. More...

virtual DecodingResult	RecoverMessage (byte recoveredMessage, const byte nonrecoverableMessage, size_t nonrecoverableMessageLength, const byte *signature, size_t signatureLength) const
	Recover a message from its signature. More...

Public Member Functions inherited from PK_SignatureScheme
virtual size_t	SignatureLength () const =0
	Provides the signature length if it only depends on the key. More...

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 size_t	MaxRecoverableLength () const =0
	Provides the length of longest message that can be recovered. More...

virtual size_t	MaxRecoverableLengthFromSignatureLength (size_t signatureLength) const =0
	Provides the length of longest message that can be recovered from a signature of given length. More...

virtual bool	IsProbabilistic () const =0
	Determines whether a signature scheme requires a random number generator. More...

virtual bool	AllowNonrecoverablePart () const =0
	Determines whether the non-recoverable message part can be signed. More...

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

virtual bool	RecoverablePartFirst () const =0
	Determines whether the recoverable part must be input before the non-recoverable part. More...

Public Member Functions inherited from PublicKeyAlgorithm
CryptoMaterial &	AccessMaterial ()
	Retrieves a reference to a Public Key. More...

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

virtual PublicKey &	AccessPublicKey ()=0
	Retrieves a reference to a Public Key. More...

virtual const PublicKey &	GetPublicKey () const
	Retrieves a reference to a Public Key. More...

virtual CryptoMaterial &	AccessMaterial ()=0
	Retrieves a reference to CryptoMaterial. More...

virtual const CryptoMaterial &	GetMaterial () const =0
	Retrieves a reference to CryptoMaterial. More...

Public Member Functions inherited from Algorithm
	Algorithm (bool checkSelfTestStatus=true)
	Interface for all crypto algorithms. More...

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

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

Public Member Functions inherited from Clonable
virtual Clonable *	Clone () const
	Copies this object. More...

Detailed Description

template<class T>
class DL_VerifierBase< T >

Discret Log (DL) Verifier base class.

Template Parameters

T	Field element type or class

Field element T can be Integer, ECP or EC2N.

Definition at line 1718 of file pubkey.h.

Constructor & Destructor Documentation

◆ ~DL_VerifierBase()

template<class T >

virtual DL_VerifierBase< T >::~DL_VerifierBase ( )

inlinevirtual

Definition at line 1721 of file pubkey.h.

Member Function Documentation

◆ InputSignature()

template<class T >

void DL_VerifierBase< T >::InputSignature	(	PK_MessageAccumulator &	messageAccumulator,
		const byte *	signature,
		size_t	signatureLength
	)		const

inlinevirtual

Input signature into a message accumulator.

Parameters

messageAccumulator	a pointer to a PK_MessageAccumulator derived class
signature	the signature on the message
signatureLength	the size of the signature

Implements PK_Verifier.

Definition at line 1723 of file pubkey.h.

◆ VerifyAndRestart()

template<class T >

bool DL_VerifierBase< T >::VerifyAndRestart ( PK_MessageAccumulator & messageAccumulator ) const

inlinevirtual

Check whether messageAccumulator contains a valid signature and message, and restart messageAccumulator.

Parameters

messageAccumulator a reference to a PK_MessageAccumulator derived class

Returns: true if the signature is valid, false otherwise

VerifyAndRestart() restarts the messageAccumulator

Implements PK_Verifier.

Definition at line 1744 of file pubkey.h.

◆ RecoverAndRestart()

template<class T >

DecodingResult DL_VerifierBase< T >::RecoverAndRestart	(	byte *	recoveredMessage,
		PK_MessageAccumulator &	messageAccumulator
	)		const

inlinevirtual

Recover a message from its signature.

Parameters

recoveredMessage	a pointer to the recoverable message part to be verified
messageAccumulator	a pointer to a PK_MessageAccumulator derived class

Returns: the result of the verification operation

RecoverAndRestart() restarts the messageAccumulator

Precondition: COUNTOF(recoveredMessage) == MaxRecoverableLengthFromSignatureLength(signatureLength)

Implements PK_Verifier.

Definition at line 1764 of file pubkey.h.

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

pubkey.h

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ ~DL_VerifierBase()

Member Function Documentation

◆ InputSignature()

◆ VerifyAndRestart()

◆ RecoverAndRestart()