java.security.spec: public class: ECPublicKeySpec

java.security.spec
public class: ECPublicKeySpec [javadoc | source]

java.lang.Object
   java.security.spec.ECPublicKeySpec

All Implemented Interfaces:
KeySpec

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

Also see:

KeySpec

ECPoint

ECParameterSpec

author: Valerie - Peng

since: 1.5 -

Constructor:

Constructor:
public ECPublicKeySpec(ECPoint w, ECParameterSpec params) { if (w == null) { throw new NullPointerException("w is null"); } if (params == null) { throw new NullPointerException("params is null"); } if (w == ECPoint.POINT_INFINITY) { throw new IllegalArgumentException("w is ECPoint.POINT_INFINITY"); } this.w = w; this.params = 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 exception: `NullPointerException` - if `w` or `params` is null. exception: `IllegalArgumentException` - if `w` is point at infinity, i.e. ECPoint.POINT_INFINITY

 public ECPublicKeySpec(ECPoint w,
    ECParameterSpec params) {
        if (w == null) {
            throw new NullPointerException("w is null");
        }
        if (params == null) {
            throw new NullPointerException("params is null");
        }
        if (w == ECPoint.POINT_INFINITY) {
            throw new IllegalArgumentException("w is ECPoint.POINT_INFINITY");
        }
        this.w = w;
        this.params = 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

exception: NullPointerException - if w or params is null.

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

Method from java.security.spec.ECPublicKeySpec Summary:
getParams, getW

Methods from java.lang.Object:
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method from java.security.spec.ECPublicKeySpec Detail:
public ECParameterSpec getParams() { return params; } Returns the associated elliptic curve domain parameters.
public ECPoint getW() { return w; } Returns the public point W.

Method from java.security.spec.ECPublicKeySpec Detail:

 public ECParameterSpec getParams() {
        return params;
}

Returns the associated elliptic curve domain parameters.

 public ECPoint getW() {
        return w;
}

Returns the public point W.