Code example for DHPrivateKey

            this.p = p.getP();
            this.g = p.getG();
        } 
        else 
        { 
            this.p = privKey.getParams().getP();
            this.g = privKey.getParams().getG();
        } 
 
        this.x = this.result = privKey.getX();
    } 
 
    protected void engineInit( 
        Key             key,
        SecureRandom    random) 
        throws InvalidKeyException 
    { 
        if (!(key instanceof DHPrivateKey))
        { 
            throw new InvalidKeyException("DHKeyAgreement requires DHPrivateKey");