java.security.spec

Class ECPoint

java.lang.Object

java.security.spec.ECPoint

public class ECPoint
extends Object

A Point on an Elliptic Curve in barycentric (or affine) coordinates.

Field Summary

Fields

Modifier and Type	Field and Description
static ECPoint	POINT_INFINITY The point on an Elliptic Curve at infinity.

Constructor Summary

Constructors

Constructor and Description
ECPoint(BigInteger affineX, BigInteger affineY) Creates a new point at the specified coordinates.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object other) Returns whether the specified object and this elliptic curve point are equal.
BigInteger	getAffineX() Returns the x-coordinate.
BigInteger	getAffineY() Returns the y-coordinate.
int	hashCode() Returns the hashcode of this elliptic curve point.

Methods inherited from class java.lang.Object

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

Field Detail

POINT_INFINITY

public static final ECPoint POINT_INFINITY

The point on an Elliptic Curve at infinity.

Constructor Detail

ECPoint

public ECPoint(BigInteger affineX,
               BigInteger affineY)

Creates a new point at the specified coordinates.

Parameters:

affineX - the x-coordinate.

affineY - the y-coordinate.

Method Detail

getAffineX

public BigInteger getAffineX()

Returns the x-coordinate.

Returns:

the x-coordinate, or null for the infinite point.

getAffineY

public BigInteger getAffineY()

Returns the y-coordinate.

Returns:

the y-coordinate, or null fot the infinite point.

equals

public boolean equals(Object other)

Returns whether the specified object and this elliptic curve point are equal.

Overrides:

equals in class Object

Parameters:

other - the object to compare.

Returns:

true if the specified object and this elliptic curve point are equal, otherwise false.

See Also:

Object.hashCode()

hashCode

public int hashCode()

Returns the hashcode of this elliptic curve point.

Overrides:

hashCode in class Object

Returns:

the hashcode of this elliptic curve point.

See Also:

Object.equals(java.lang.Object)