LUC GroupParameters specialization. More...

#include <luc.h>

Inheritance diagram for DL_GroupParameters_LUC:

Public Member Functions
bool	IsIdentity (const Integer &element) const

void	SimultaneousExponentiate (Element results, const Element &base, const Integer exponents, unsigned int exponentsCount) const

Element	MultiplyElements (const Element &a, const Element &b) const

Element	CascadeExponentiate (const Element &element1, const Integer &exponent1, const Element &element2, const Integer &exponent2) const

bool	GetVoidValue (const char name, const std::type_info &valueType, void pValue) const
	Get a named value.

Public Member Functions inherited from DL_GroupParameters_IntegerBasedImpl< DL_GroupPrecomputation_LUC, DL_BasePrecomputation_LUC >
void	AssignFrom (const NameValuePairs &source)
	Assign values to this object.

const DL_FixedBasePrecomputation< Element > &	GetBasePrecomputation () const
	Retrieves the group precomputation.

DL_FixedBasePrecomputation< Element > &	AccessBasePrecomputation ()
	Retrieves the group precomputation.

const Integer &	GetModulus () const
	Retrieve the modulus for the group.

const Integer &	GetGenerator () const
	Retrieves a reference to the group generator.

void	SetModulusAndSubgroupGenerator (const Integer &p, const Integer &g)

bool	operator== (const DL_GroupParameters_IntegerBasedImpl< DL_GroupPrecomputation_LUC, DL_BasePrecomputation_LUC > &rhs) const

bool	operator!= (const DL_GroupParameters_IntegerBasedImpl< DL_GroupPrecomputation_LUC, DL_BasePrecomputation_LUC > &rhs) const

Public Member Functions inherited from DL_GroupParametersImpl< GROUP_PRECOMP, BASE_PRECOMP, BASE >
const DL_GroupPrecomputation< Element > &	GetGroupPrecomputation () const
	Retrieves the group precomputation.

const DL_FixedBasePrecomputation< Element > &	GetBasePrecomputation () const
	Retrieves the group precomputation.

DL_FixedBasePrecomputation< Element > &	AccessBasePrecomputation ()
	Retrieves the group precomputation.

Public Member Functions inherited from DL_GroupParameters< T >
bool	Validate (RandomNumberGenerator &rng, unsigned int level) const
	Check this object for errors.

bool	SupportsPrecomputation () const
	Determines whether the object supports precomputation.

void	Precompute (unsigned int precomputationStorage=16)
	Perform precomputation.

void	LoadPrecomputation (BufferedTransformation &storedPrecomputation)
	Retrieve previously saved precomputation.

void	SavePrecomputation (BufferedTransformation &storedPrecomputation) const
	Save precomputation for later use.

virtual const Element &	GetSubgroupGenerator () const
	Retrieves the subgroup generator.

virtual void	SetSubgroupGenerator (const Element &base)
	Sets the subgroup generator.

virtual Element	ExponentiateBase (const Integer &exponent) const
	Exponentiates the base.

virtual Element	ExponentiateElement (const Element &base, const Integer &exponent) const
	Exponentiates an element.

virtual const Integer &	GetSubgroupOrder () const =0
	Retrieves the subgroup order.

virtual Integer	GetMaxExponent () const =0
	Retrieves the maximum exponent for the group.

virtual Integer	GetGroupOrder () const
	Retrieves the order of the group.

virtual Integer	GetCofactor () const
	Retrieves the cofactor.

virtual unsigned int	GetEncodedElementSize (bool reversible) const =0
	Retrieves the encoded element's size.

virtual void	EncodeElement (bool reversible, const Element &element, byte *encoded) const =0
	Encodes the element.

virtual Element	DecodeElement (const byte *encoded, bool checkForGroupMembership) const =0
	Decodes the element.

virtual Integer	ConvertElementToInteger (const Element &element) const =0
	Converts an element to an Integer.

virtual bool	ValidateGroup (RandomNumberGenerator &rng, unsigned int level) const =0
	Check the group for errors.

virtual bool	ValidateElement (unsigned int level, const Element &element, const DL_FixedBasePrecomputation< Element > *precomp) const =0
	Check the element for errors.

virtual bool	FastSubgroupCheckAvailable () const =0

virtual bool	IsIdentity (const Element &element) const =0
	Determines if an element is an identity.

virtual void	SimultaneousExponentiate (Element results, const Element &base, const Integer exponents, unsigned int exponentsCount) const =0
	Exponentiates a base to multiple exponents.

Public Member Functions inherited from GeneratableCryptoMaterial
virtual void	GenerateRandom (RandomNumberGenerator &rng, const NameValuePairs &params=g_nullNameValuePairs)
	Generate a random key or crypto parameters.

void	GenerateRandomWithKeySize (RandomNumberGenerator &rng, unsigned int keySize)
	Generate a random key or crypto parameters.

Public Member Functions inherited from CryptoMaterial
virtual void	ThrowIfInvalid (RandomNumberGenerator &rng, unsigned int level) const
	Check this object for errors.

virtual void	Save (BufferedTransformation &bt) const
	Saves a key to a BufferedTransformation.

virtual void	Load (BufferedTransformation &bt)
	Loads a key from a BufferedTransformation.

void	DoQuickSanityCheck () const
	Perform a quick sanity check.

Public Member Functions inherited from NameValuePairs
template<class T >
bool	GetThisObject (T &object) const
	Get a copy of this object or subobject.

template<class T >
bool	GetThisPointer (T *&ptr) const
	Get a pointer to this object.

template<class T >
bool	GetValue (const char *name, T &value) const
	Get a named value.

template<class T >
T	GetValueWithDefault (const char *name, T defaultValue) const
	Get a named value.

CRYPTOPP_DLL std::string	GetValueNames () const
	Get a list of value names that can be retrieved.

CRYPTOPP_DLL bool	GetIntValue (const char *name, int &value) const
	Get a named value with type int.

CRYPTOPP_DLL int	GetIntValueWithDefault (const char *name, int defaultValue) const
	Get a named value with type int, with default.

CRYPTOPP_DLL bool	GetWord64Value (const char *name, word64 &value) const
	Get a named value with type word64.

CRYPTOPP_DLL word64	GetWord64ValueWithDefault (const char *name, word64 defaultValue) const
	Get a named value with type word64, with default.

template<class T >
void	GetRequiredParameter (const char className, const char name, T &value) const
	Retrieves a required name/value pair.

CRYPTOPP_DLL void	GetRequiredIntParameter (const char className, const char name, int &value) const
	Retrieves a required name/value pair.

Additional Inherited Members
Public Types inherited from DL_GroupParameters_IntegerBasedImpl< DL_GroupPrecomputation_LUC, DL_BasePrecomputation_LUC >
typedef GROUP_PRECOMP::Element	Element

Public Types inherited from DL_GroupParametersImpl< GROUP_PRECOMP, BASE_PRECOMP, BASE >
typedef GROUP_PRECOMP	GroupPrecomputation

typedef GROUP_PRECOMP::Element	Element

typedef BASE_PRECOMP	BasePrecomputation

Public Types inherited from DL_GroupParameters< T >
typedef T	Element

Static Public Member Functions inherited from NameValuePairs
static CRYPTOPP_DLL void	ThrowIfTypeMismatch (const char *name, const std::type_info &stored, const std::type_info &retrieving)
	Ensures an expected name and type is present.

Detailed Description

LUC GroupParameters specialization.

Since: Crypto++ 2.1

Definition at line 223 of file luc.h.

Constructor & Destructor Documentation

◆ ~DL_GroupParameters_LUC()

virtual DL_GroupParameters_LUC::~DL_GroupParameters_LUC ( )

inlinevirtual

Definition at line 226 of file luc.h.

Member Function Documentation

◆ IsIdentity()

bool DL_GroupParameters_LUC::IsIdentity ( const Integer & element ) const

inline

Definition at line 229 of file luc.h.

◆ SimultaneousExponentiate()

void DL_GroupParameters_LUC::SimultaneousExponentiate	(	Element *	results,
		const Element &	base,
		const Integer *	exponents,
		unsigned int	exponentsCount
	)		const

Definition at line 45 of file luc.cpp.

◆ MultiplyElements()

Element DL_GroupParameters_LUC::MultiplyElements	(	const Element &	a,
		const Element &	b
	)		const

inline

Definition at line 231 of file luc.h.

◆ CascadeExponentiate()

Element DL_GroupParameters_LUC::CascadeExponentiate	(	const Element &	element1,
		const Integer &	exponent1,
		const Element &	element2,
		const Integer &	exponent2
	)		const

inline

Definition at line 236 of file luc.h.

◆ GetVoidValue()

bool DL_GroupParameters_LUC::GetVoidValue	(	const char *	name,
		const std::type_info &	valueType,
		void *	pValue
	)		const

inlinevirtual

Get a named value.

Parameters

name	the name of the object or value to retrieve
valueType	reference to a variable that receives the value
pValue	void pointer to a variable that receives the value

Returns: true if the value was retrieved, false otherwise

GetVoidValue() retrieves the value of name if it exists.

Note: GetVoidValue() is an internal function and should be implemented by derived classes. Users should use one of the other functions instead.

See also: GetValue(), GetValueWithDefault(), GetIntValue(), GetIntValueWithDefault(), GetRequiredParameter() and GetRequiredIntParameter()

Reimplemented from DL_GroupParameters_IntegerBasedImpl< DL_GroupPrecomputation_LUC, DL_BasePrecomputation_LUC >.

Definition at line 243 of file luc.h.

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

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ~DL_GroupParameters_LUC()

Member Function Documentation

◆ IsIdentity()

◆ SimultaneousExponentiate()

◆ MultiplyElements()

◆ CascadeExponentiate()

◆ GetVoidValue()