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DL_GroupParameters_EC< EC > Class Template Reference

#include <eccrypto.h>

Inheritance diagram for DL_GroupParameters_EC< EC >:

DL_GroupParametersImpl< EcPrecomputation< EC > > List of all members.

Detailed Description

template<class EC>
class DL_GroupParameters_EC< EC >

Elliptic Curve Parameters.

This class corresponds to the ASN.1 sequence of the same name in ANSI X9.62 (also SEC 1).

Definition at line 25 of file eccrypto.h.

Public Types

typedef EC EllipticCurve
typedef EllipticCurve::Point Point
typedef Point Element
typedef IncompatibleCofactorMultiplication DefaultCofactorOption
typedef EcPrecomputation< EC > GroupPrecomputation
typedef DL_FixedBasePrecomputationImpl<
typenameEcPrecomputation<
EC >::Element > 
BasePrecomputation

Public Member Functions

 DL_GroupParameters_EC (const OID &oid)
 DL_GroupParameters_EC (const EllipticCurve &ec, const Point &G, const Integer &n, const Integer &k=Integer::Zero())
 DL_GroupParameters_EC (BufferedTransformation &bt)
void Initialize (const EllipticCurve &ec, const Point &G, const Integer &n, const Integer &k=Integer::Zero())
void Initialize (const OID &oid)
bool GetVoidValue (const char *name, const std::type_info &valueType, void *pValue) const
void AssignFrom (const NameValuePairs &source)
void GenerateRandom (RandomNumberGenerator &rng, const NameValuePairs &alg)
 this implementation doesn't actually generate a curve, it just initializes the parameters with existing values
const DL_FixedBasePrecomputation<
Element > & 
GetBasePrecomputation () const
DL_FixedBasePrecomputation<
Element > & 
AccessBasePrecomputation ()
const IntegerGetSubgroupOrder () const
Integer GetCofactor () const
bool ValidateGroup (RandomNumberGenerator &rng, unsigned int level) const
bool ValidateElement (unsigned int level, const Element &element, const DL_FixedBasePrecomputation< Element > *precomp) const
bool FastSubgroupCheckAvailable () const
void EncodeElement (bool reversible, const Element &element, byte *encoded) const
unsigned int GetEncodedElementSize (bool reversible) const
Element DecodeElement (const byte *encoded, bool checkForGroupMembership) const
Integer ConvertElementToInteger (const Element &element) const
Integer GetMaxExponent () const
bool IsIdentity (const Element &element) const
void SimultaneousExponentiate (Element *results, const Element &base, const Integer *exponents, unsigned int exponentsCount) const
OID GetAlgorithmID () 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
void BERDecode (BufferedTransformation &bt)
void DEREncode (BufferedTransformation &bt) const
void SetPointCompression (bool compress)
bool GetPointCompression () const
void SetEncodeAsOID (bool encodeAsOID)
bool GetEncodeAsOID () const
const EllipticCurve & GetCurve () const
bool operator== (const ThisClass &rhs) const
const DL_GroupPrecomputation<
Element > & 
GetGroupPrecomputation () const

Static Public Member Functions

std::string StaticAlgorithmNamePrefix ()
OID GetNextRecommendedParametersOID (const OID &oid)

Protected Member Functions

unsigned int FieldElementLength () const
unsigned int ExponentLength () const

Protected Attributes

OID m_oid
Integer m_n
bool m_compress
bool m_encodeAsOID
Integer m_k
EcPrecomputation< EC > m_groupPrecomputation
DL_FixedBasePrecomputationImpl<
typenameEcPrecomputation<
EC >::Element > 
m_gpc


Member Function Documentation

template<class EC>
void DL_GroupParameters_EC< EC >::GenerateRandom RandomNumberGenerator rng,
const NameValuePairs alg
 

this implementation doesn't actually generate a curve, it just initializes the parameters with existing values

parameters: (Curve, SubgroupGenerator, SubgroupOrder, Cofactor (optional)), or (GroupOID) Definition at line 430 of file eccrypto.cpp.


The documentation for this class was generated from the following files:
Generated on Fri Aug 27 11:33:28 2004 for Crypto++ by doxygen 1.3.8