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

#include <pubkey.h>

Inheritance diagram for DL_SignatureSchemeBase< INTFACE, KEY_INTFACE >:

Collaboration diagram for DL_SignatureSchemeBase< INTFACE, KEY_INTFACE >:

Public Member Functions
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...

Protected Member Functions
size_t	MessageRepresentativeLength () const

size_t	MessageRepresentativeBitLength () const

virtual bool	IsDeterministic () const

virtual const DL_ElgamalLikeSignatureAlgorithm< typename KEY_INTFACE::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< KEY_INTFACE >
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< KEY_INTFACE >
typedef KEY_INTFACE	KeyInterface

typedef KEY_INTFACE::Element	Element

Detailed Description

template<class INTFACE, class KEY_INTFACE>
class DL_SignatureSchemeBase< INTFACE, KEY_INTFACE >

Discrete Log (DL) signature scheme base implementation.

Template Parameters

INTFACE	PK_Signer or PK_Verifier derived class
DL_Base	key base used in the scheme

DL_SignatureSchemeBase provides common functions for signers and verifiers. DL_Base<DL_PrivateKey> is used for signers, and DL_Base<DL_PublicKey> is used for verifiers.

Definition at line 1353 of file pubkey.h.

Constructor & Destructor Documentation

template<class INTFACE, class KEY_INTFACE>

virtual DL_SignatureSchemeBase< INTFACE, KEY_INTFACE >::~DL_SignatureSchemeBase ( )

inlinevirtual

Definition at line 1356 of file pubkey.h.

Member Function Documentation

template<class INTFACE, class KEY_INTFACE>

bool DL_SignatureSchemeBase< INTFACE, KEY_INTFACE >::AllowNonrecoverablePart ( ) const

inline

Determines if the scheme has non-recoverable part.

Returns: true if the message encoding has a non-recoverable part, false otherwise.

Definition at line 1386 of file pubkey.h.

template<class INTFACE, class KEY_INTFACE>

virtual size_t DL_SignatureSchemeBase< INTFACE, KEY_INTFACE >::GetDigestSize ( ) const

protectedpure virtual

Implemented in DL_ObjectImplBase< DL_VerifierBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS, SCHEME_OPTIONS::PublicKey >, and DL_ObjectImplBase< DL_SignerBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS, SCHEME_OPTIONS::PrivateKey >.

template<class INTFACE, class KEY_INTFACE>

virtual HashIdentifier DL_SignatureSchemeBase< INTFACE, KEY_INTFACE >::GetHashIdentifier ( ) const

protectedpure virtual

Implemented in DL_ObjectImpl< DL_VerifierBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS, SCHEME_OPTIONS::PublicKey >, DL_ObjectImpl< DL_SignerBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS, SCHEME_OPTIONS::PrivateKey >, DL_ObjectImplBase< DL_VerifierBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS, SCHEME_OPTIONS::PublicKey >, and DL_ObjectImplBase< DL_SignerBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS, SCHEME_OPTIONS::PrivateKey >.

template<class INTFACE, class KEY_INTFACE>

virtual const PK_SignatureMessageEncodingMethod& DL_SignatureSchemeBase< INTFACE, KEY_INTFACE >::GetMessageEncodingInterface ( ) const

protectedpure virtual

Implemented in DL_ObjectImpl< DL_VerifierBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS, SCHEME_OPTIONS::PublicKey >, and DL_ObjectImpl< DL_SignerBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS, SCHEME_OPTIONS::PrivateKey >.

template<class INTFACE, class KEY_INTFACE>

virtual const DL_ElgamalLikeSignatureAlgorithm<typename KEY_INTFACE::Element>& DL_SignatureSchemeBase< INTFACE, KEY_INTFACE >::GetSignatureAlgorithm ( ) const

protectedpure virtual

Implemented in DL_ObjectImpl< DL_VerifierBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS, SCHEME_OPTIONS::PublicKey >, and DL_ObjectImpl< DL_SignerBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS, SCHEME_OPTIONS::PrivateKey >.

template<class INTFACE, class KEY_INTFACE>

virtual bool DL_SignatureSchemeBase< INTFACE, KEY_INTFACE >::IsDeterministic ( ) const

inlineprotectedvirtual

Definition at line 1399 of file pubkey.h.

template<class INTFACE, class KEY_INTFACE>

bool DL_SignatureSchemeBase< INTFACE, KEY_INTFACE >::IsProbabilistic ( ) const

inline

Determines if the scheme is probabilistic.

Returns: true if the scheme is probabilistic, false otherwise

Definition at line 1381 of file pubkey.h.

template<class INTFACE, class KEY_INTFACE>

size_t DL_SignatureSchemeBase< INTFACE, KEY_INTFACE >::MaxRecoverableLength ( ) const

inline

Provides the maximum recoverable length.

Returns: maximum recoverable length, in bytes

Definition at line 1369 of file pubkey.h.

template<class INTFACE, class KEY_INTFACE>

size_t DL_SignatureSchemeBase< INTFACE, KEY_INTFACE >::MaxRecoverableLengthFromSignatureLength ( size_t signatureLength ) const

inline

Provides the maximum recoverable length.

Parameters

signatureLength the size fo the signature

Returns: maximum recoverable length based on signature length, in bytes

this function is not implemented and always returns 0.

Definition at line 1376 of file pubkey.h.

template<class INTFACE, class KEY_INTFACE>

size_t DL_SignatureSchemeBase< INTFACE, KEY_INTFACE >::MessageRepresentativeBitLength ( ) const

inlineprotected

Definition at line 1396 of file pubkey.h.

template<class INTFACE, class KEY_INTFACE>

size_t DL_SignatureSchemeBase< INTFACE, KEY_INTFACE >::MessageRepresentativeLength ( ) const

inlineprotected

Definition at line 1395 of file pubkey.h.

template<class INTFACE, class KEY_INTFACE>

bool DL_SignatureSchemeBase< INTFACE, KEY_INTFACE >::RecoverablePartFirst ( ) const

inline

Determines if the scheme allows recoverable part first.

Returns: true if the message encoding allows the recoverable part, false otherwise.

Definition at line 1391 of file pubkey.h.

template<class INTFACE, class KEY_INTFACE>

size_t DL_SignatureSchemeBase< INTFACE, KEY_INTFACE >::SignatureLength ( ) const

inline

Provides the signature length.

Returns: signature length, in bytes

SignatureLength returns the size required for r+s.

Definition at line 1361 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 INTFACE, class KEY_INTFACE> class DL_SignatureSchemeBase< INTFACE, KEY_INTFACE >

Constructor & Destructor Documentation

Member Function Documentation

template<class INTFACE, class KEY_INTFACE>
class DL_SignatureSchemeBase< INTFACE, KEY_INTFACE >