com.tencent.kona.sun.security.ec.point

Class ExtendedHomogeneousPoint<T extends IntegerModuloP>

java.lang.Object

com.tencent.kona.sun.security.ec.point.ExtendedHomogeneousPoint<T>

All Implemented Interfaces:

Point

Direct Known Subclasses:

ExtendedHomogeneousPoint.Immutable, ExtendedHomogeneousPoint.Mutable

public abstract class ExtendedHomogeneousPoint<T extends IntegerModuloP>
extends java.lang.Object
implements Point

Elliptic curve point in extended homogeneous coordinates (X, Y, T, Z) where an affine point (x, y) is represented using any (X, Y, T, Z) s.t. x = X/Z, y = Y/Z, and x*y = T/Z.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ExtendedHomogeneousPoint.Immutable
static class	ExtendedHomogeneousPoint.Mutable

Field Summary

Fields

Modifier and Type	Field and Description
protected T	t
protected T	x
protected T	y
protected T	z

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ExtendedHomogeneousPoint(T x, T y, T t, T z)

Method Summary

Modifier and Type	Method and Description
boolean	affineEquals(Point p)
AffinePoint	asAffine()
ExtendedHomogeneousPoint.Immutable	fixed()
IntegerFieldModuloP	getField()
T	getT()
T	getX()
T	getY()
T	getZ()
ExtendedHomogeneousPoint.Mutable	mutable()

Methods inherited from class java.lang.Object

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

Field Detail

x

protected final T extends IntegerModuloP x

y

protected final T extends IntegerModuloP y

t

protected final T extends IntegerModuloP t

z

protected final T extends IntegerModuloP z

Constructor Detail

ExtendedHomogeneousPoint

protected ExtendedHomogeneousPoint(T x,
                                   T y,
                                   T t,
                                   T z)

Method Detail

getField

public IntegerFieldModuloP getField()

Specified by:

getField in interface Point

fixed

public ExtendedHomogeneousPoint.Immutable fixed()

Specified by:

fixed in interface Point

mutable

public ExtendedHomogeneousPoint.Mutable mutable()

Specified by:

mutable in interface Point

getX

public T getX()

getY

public T getY()

getT

public T getT()

getZ

public T getZ()

asAffine

public AffinePoint asAffine()

Specified by:

asAffine in interface Point

affineEquals

public boolean affineEquals(Point p)

Specified by:

affineEquals in interface Point