iaik.security.ec.math.curve

Interface Coordinate

All Superinterfaces:

Cloneable

public interface Coordinate
extends Cloneable

This interface is implemented by all classes that are used to describe coordinates of arbitrary coordinate systems.

Author:

Christian Hanser, Sebastian Ramacher

Method Summary

Modifier and Type	Method and Description
Coordinate	clone() Clones a coordinate instance.
GenericFieldElement	getDenominator() Get denominator if available.
GenericFieldElement	getX() Returns the x-coordinate.
GenericFieldElement	getY() Returns the y-coordinate.
boolean	isScaled() Checks whether this coordinate is scaled, i.e.

Method Detail

getX

GenericFieldElement getX()

Returns the x-coordinate.

Returns:

the x-coordinate.

getY

GenericFieldElement getY()

Returns the y-coordinate.

Returns:

the y-coordinate.

isScaled

boolean isScaled()

Checks whether this coordinate is scaled, i.e. whether it is either affine or has z-coordinate 1.

Returns:

true, iff this is scaled.

clone

Coordinate clone()

Clones a coordinate instance.

Returns:

the clone

getDenominator

GenericFieldElement getDenominator()

Get denominator if available.

Returns:

the denominator