http://www.bouncycastle.org/java.html: The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8.
  • The Legion of the Bouncy Castle Inc. 
package org.bouncycastle.jce.interfaces;

import java.security.PublicKey;

import org.bouncycastle.math.ec.ECPoint;


interface for elliptic curve public keys.

/**
 * interface for elliptic curve public keys.
 */
public interface ECPublicKey
    extends ECKey, PublicKey
{
    
return the public point Q

/**
     * return the public point Q
     */
    public ECPoint getQ();
}