class ECKey implements Serializable {

    public ECKey() {
        this(secureRandom);
    }

    public  ECKey();
    public  ECKey(Provider provider, SecureRandom secureRandom);
    public  ECKey(SecureRandom secureRandom);
    public  ECKey(Provider provider, @Nullable PrivateKey privKey, ECPoint pub);
    public  ECKey(@Nullable BigInteger priv, ECPoint pub);

}