Discrete Log (DL) verifier implementation. More...

#include <pubkey.h>

Inheritance diagram for DL_VerifierImpl< SCHEME_OPTIONS >:

Collaboration diagram for DL_VerifierImpl< SCHEME_OPTIONS >:

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

Public Member Functions inherited from DL_ObjectImpl< DL_VerifierBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS, SCHEME_OPTIONS::PublicKey >
virtual	~DL_ObjectImpl ()

Public Member Functions inherited from DL_ObjectImplBase< DL_VerifierBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS, SCHEME_OPTIONS::PublicKey >
virtual	~DL_ObjectImplBase ()

PrivateKey &	AccessPrivateKey ()

PublicKey &	AccessPublicKey ()

const SCHEME_OPTIONS::PublicKey &	GetKey () const

SCHEME_OPTIONS::PublicKey &	AccessKey ()

Public Member Functions inherited from AlgorithmImpl< DL_VerifierBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS::AlgorithmInfo >
std::string	AlgorithmName () const

Public Member Functions inherited from DL_VerifierBase< SCHEME_OPTIONS::Element >
virtual	~DL_VerifierBase ()

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< SCHEME_OPTIONS::Element > >
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_Verifier
virtual	~PK_Verifier ()

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

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

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

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

Public Member Functions inherited from Clonable
virtual	~Clonable ()

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

Additional Inherited Members
Public Types inherited from DL_ObjectImpl< DL_VerifierBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS, SCHEME_OPTIONS::PublicKey >
typedef SCHEME_OPTIONS::PublicKey::Element	Element

Public Types inherited from DL_ObjectImplBase< DL_VerifierBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS, SCHEME_OPTIONS::PublicKey >
typedef SCHEME_OPTIONS	SchemeOptions

typedef SCHEME_OPTIONS::PublicKey::Element	Element

Static Public Member Functions inherited from AlgorithmImpl< DL_VerifierBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS::AlgorithmInfo >
static std::string CRYPTOPP_API	StaticAlgorithmName ()

Protected Types inherited from DL_Base< DL_PublicKey< SCHEME_OPTIONS::Element > >
typedef DL_PublicKey< SCHEME_OPTIONS::Element >	KeyInterface

typedef DL_PublicKey< SCHEME_OPTIONS::Element >::Element	Element

Protected Member Functions inherited from DL_ObjectImpl< DL_VerifierBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS, SCHEME_OPTIONS::PublicKey >
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

Protected Member Functions inherited from DL_ObjectImplBase< DL_VerifierBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS, SCHEME_OPTIONS::PublicKey >
DL_VerifierBase< SCHEME_OPTIONS::Element >::KeyInterface &	AccessKeyInterface ()

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

size_t	GetDigestSize () const

Protected Member Functions inherited from DL_SignatureSchemeBase< PK_Verifier, DL_PublicKey< SCHEME_OPTIONS::Element > >
size_t	MessageRepresentativeLength () const

size_t	MessageRepresentativeBitLength () const

virtual bool	IsDeterministic () const

Protected Member Functions inherited from DL_Base< DL_PublicKey< SCHEME_OPTIONS::Element > >
virtual	~DL_Base ()

const DL_GroupParameters< Element > &	GetAbstractGroupParameters () const

DL_GroupParameters< Element > &	AccessAbstractGroupParameters ()

Detailed Description

template<class SCHEME_OPTIONS>
class DL_VerifierImpl< SCHEME_OPTIONS >

Discrete Log (DL) verifier implementation.

Template Parameters

SCHEME_OPTIONS options for the scheme

Definition at line 1827 of file pubkey.h.

Member Function Documentation

template<class SCHEME_OPTIONS >

PK_MessageAccumulator* DL_VerifierImpl< SCHEME_OPTIONS >::NewVerificationAccumulator ( ) const

inlinevirtual

Create a new HashTransformation to accumulate the message to be verified.

Returns: a pointer to a PK_MessageAccumulator

NewVerificationAccumulator() can be used with all verification methods. Verify() will autimatically delete the accumulator pointer. The caller is responsible for deletion if a method is called that takes a reference.

Implements PK_Verifier.

Definition at line 1830 of file pubkey.h.

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

src/cryptopp/pubkey.h

Public Member Functions

Additional Inherited Members

Detailed Description

template<class SCHEME_OPTIONS> class DL_VerifierImpl< SCHEME_OPTIONS >

Member Function Documentation

template<class SCHEME_OPTIONS>
class DL_VerifierImpl< SCHEME_OPTIONS >