#include <pubkey.h>

Inheritance diagram for DL_VerifierImpl< SCHEME_OPTIONS >:

Public Types
typedef SCHEME_OPTIONS::PublicKey::Element	Element

typedef SCHEME_OPTIONS	SchemeOptions

Public Member Functions
PK_MessageAccumulator *	NewVerificationAccumulator () const
	create a new HashTransformation to accumulate the message to be verified

PrivateKey &	AccessPrivateKey ()

PublicKey &	AccessPublicKey ()

const SCHEME_OPTIONS::PublicKey &	GetKey () const

SCHEME_OPTIONS::PublicKey &	AccessKey ()

std::string	AlgorithmName () const

void	InputSignature (PK_MessageAccumulator &messageAccumulator, const byte *signature, size_t signatureLength) const
	input signature into a message accumulator

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

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

size_t	SignatureLength () const

size_t	MaxRecoverableLength () const

size_t	MaxRecoverableLengthFromSignatureLength (size_t signatureLength) const

bool	IsProbabilistic () const

bool	AllowNonrecoverablePart () const

bool	RecoverablePartFirst () const

virtual bool	Verify (PK_MessageAccumulator *messageAccumulator) const
	check whether messageAccumulator contains a valid signature and message, and delete messageAccumulator (even in case of exception thrown)

virtual bool	VerifyMessage (const byte message, size_t messageLen, const byte signature, size_t signatureLength) const
	check whether input signature is a valid signature for input message

virtual DecodingResult	Recover (byte recoveredMessage, PK_MessageAccumulator messageAccumulator) const
	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...

virtual size_t	MaxSignatureLength (size_t recoverablePartLength=0) const
	maximum signature length produced for a given length of recoverable message part

virtual bool	SignatureUpfront () const
	if this function returns true, during verification you must input the signature before the message, otherwise you can input it at anytime */

CryptoMaterial &	AccessMaterial ()
	returns a reference to the crypto material used by this object

const CryptoMaterial &	GetMaterial () const
	returns a const reference to the crypto material used by this object

virtual const PublicKey &	GetPublicKey () const

void	BERDecode (BufferedTransformation &bt)
	for backwards compatibility, calls AccessMaterial().Load(bt)

void	DEREncode (BufferedTransformation &bt) const
	for backwards compatibility, calls GetMaterial().Save(bt)

virtual Clonable *	Clone () const
	this is not implemented by most classes yet

Static Public Member Functions
static std::string	StaticAlgorithmName ()

Protected Types
typedef DL_PublicKey < SCHEME_OPTIONS::Element >	KeyInterface

Protected Member Functions
const DL_ElgamalLikeSignatureAlgorithm < Element > &	GetSignatureAlgorithm () const

const DL_KeyAgreementAlgorithm < Element > &	GetKeyAgreementAlgorithm () const

const DL_KeyDerivationAlgorithm < Element > &	GetKeyDerivationAlgorithm () const

const DL_SymmetricEncryptionAlgorithm &	GetSymmetricEncryptionAlgorithm () const

HashIdentifier	GetHashIdentifier () const

const PK_SignatureMessageEncodingMethod &	GetMessageEncodingInterface () const

DL_VerifierBase < SCHEME_OPTIONS::Element > ::KeyInterface &	AccessKeyInterface ()

const DL_VerifierBase < SCHEME_OPTIONS::Element > ::KeyInterface &	GetKeyInterface () const

size_t	GetDigestSize () const

size_t	MessageRepresentativeLength () const

size_t	MessageRepresentativeBitLength () const

const DL_GroupParameters < Element > &	GetAbstractGroupParameters () const

DL_GroupParameters< Element > &	AccessAbstractGroupParameters ()

Detailed Description

template<class SCHEME_OPTIONS>
class DL_VerifierImpl< SCHEME_OPTIONS >

_

Definition at line 1351 of file pubkey.h.

Member Function Documentation

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

inlinevirtualinherited

recover a message from its signature

Precondition: size of recoveredMessage == MaxRecoverableLengthFromSignatureLength(signatureLength)

Implements PK_Verifier.

Definition at line 1119 of file pubkey.h.

References Integer::Encode(), SecBlock< T, A >::New(), and NullRNG().

virtual DecodingResult PK_Verifier::Recover	(	byte *	recoveredMessage,
		PK_MessageAccumulator *	messageAccumulator
	)		const

virtualinherited

recover a message from its signature

Precondition: size of recoveredMessage == MaxRecoverableLengthFromSignatureLength(signatureLength)

virtual DecodingResult PK_Verifier::RecoverMessage	(	byte *	recoveredMessage,
		const byte *	nonrecoverableMessage,
		size_t	nonrecoverableMessageLength,
		const byte *	signature,
		size_t	signatureLength
	)		const

virtualinherited

recover a message from its signature

Precondition: size of recoveredMessage == MaxRecoverableLengthFromSignatureLength(signatureLength)

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

pubkey.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Types

Protected Member Functions

Detailed Description

template<class SCHEME_OPTIONS> class DL_VerifierImpl< SCHEME_OPTIONS >

Member Function Documentation

template<class SCHEME_OPTIONS>
class DL_VerifierImpl< SCHEME_OPTIONS >