org.spongycastle.math.ec.endo

Class GLVTypeBEndomorphism

java.lang.Object

org.spongycastle.math.ec.endo.GLVTypeBEndomorphism

All Implemented Interfaces:

ECEndomorphism, GLVEndomorphism

public class GLVTypeBEndomorphism
extends java.lang.Object
implements GLVEndomorphism

Field Summary

Fields

Modifier and Type	Field and Description
protected ECCurve	curve
protected GLVTypeBParameters	parameters
protected ECPointMap	pointMap

Constructor Summary

Constructors

Constructor and Description
GLVTypeBEndomorphism(ECCurve curve, GLVTypeBParameters parameters)

Method Summary

Modifier and Type	Method and Description
protected java.math.BigInteger	calculateB(java.math.BigInteger k, java.math.BigInteger g, int t)
java.math.BigInteger[]	decomposeScalar(java.math.BigInteger k)
ECPointMap	getPointMap()
boolean	hasEfficientPointMap()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

curve

protected final ECCurve curve

parameters

protected final GLVTypeBParameters parameters

pointMap

protected final ECPointMap pointMap

Constructor Detail

GLVTypeBEndomorphism

public GLVTypeBEndomorphism(ECCurve curve,
                            GLVTypeBParameters parameters)

Method Detail

decomposeScalar

public java.math.BigInteger[] decomposeScalar(java.math.BigInteger k)

Specified by:

decomposeScalar in interface GLVEndomorphism

getPointMap

public ECPointMap getPointMap()

Specified by:

getPointMap in interface ECEndomorphism

hasEfficientPointMap

public boolean hasEfficientPointMap()

Specified by:

hasEfficientPointMap in interface ECEndomorphism

calculateB

protected java.math.BigInteger calculateB(java.math.BigInteger k,
                                          java.math.BigInteger g,
                                          int t)