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 1.7. 
package org.bouncycastle.jce.spec;

import java.security.PublicKey;
import java.security.spec.KeySpec;

import org.bouncycastle.jce.interfaces.MQVPublicKey;


Static/ephemeral public key pair for use with ECMQV key agreement

/**
 * Static/ephemeral public key pair for use with ECMQV key agreement
 */
public class MQVPublicKeySpec
    implements KeySpec, MQVPublicKey
{
    private PublicKey staticKey;
    private PublicKey ephemeralKey;

    
Params:
  • staticKey – the static public key.
  • ephemeralKey – the ephemeral public key.
/**
     * @param staticKey the static public key.
     * @param ephemeralKey the ephemeral public key.
     */
    public MQVPublicKeySpec(
        PublicKey staticKey,
        PublicKey ephemeralKey)
    {
        this.staticKey = staticKey;
        this.ephemeralKey = ephemeralKey;
    }

    
return the static public key

/**
     * return the static public key
     */
    public PublicKey getStaticKey()
    {
        return staticKey;
    }
    
    
return the ephemeral public key

/**
     * return the ephemeral public key
     */
    public PublicKey getEphemeralKey()
    {
        return ephemeralKey;
    }

    
return "ECMQV"

/**
     * return "ECMQV"
     */
    public String getAlgorithm()
    {
        return "ECMQV";
    }

    
return null

/**
     * return null
     */
    public String getFormat()
    {
        return null;
    }

    
returns null

/**
     * returns null
     */
    public byte[] getEncoded()
    {
        return null;
    }
}