Module java.base

Package java.security.spec

Class ECPublicKeySpec

java.lang.Object

java.security.spec.ECPublicKeySpec

All Implemented Interfaces:

KeySpec

public class ECPublicKeySpec
extends Object
implements KeySpec

This immutable class specifies an elliptic curve public key with its associated parameters.

Since:

1.5

See Also:

• KeySpec
• ECPoint
• ECParameterSpec

Constructor Summary

Constructors

Constructor	Description
ECPublicKeySpec(ECPoint w, ECParameterSpec params)	Creates a new ECPublicKeySpec with the specified parameter values.

Method Summary

Modifier and Type	Method	Description
ECParameterSpec	getParams()	Returns the associated elliptic curve domain parameters.
ECPoint	getW()	Returns the public point W.

Methods declared in class java.lang.Object

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

Constructor Details

ECPublicKeySpec

public ECPublicKeySpec(ECPoint w,
 ECParameterSpec params)

Creates a new ECPublicKeySpec with the specified parameter values.

Parameters:

w - the public point.

params - the associated elliptic curve domain parameters.

Throws:

NullPointerException - if w or params is null.

IllegalArgumentException - if w is point at infinity, i.e. ECPoint.POINT_INFINITY

Method Details

getW

public ECPoint getW()

Returns the public point W.

Returns:

the public point W.

getParams

public ECParameterSpec getParams()

Returns the associated elliptic curve domain parameters.

Returns:

the EC domain parameters.