EllipticCurve ec = new EllipticCurve(new BigInteger("43"),
new BigInteger("4"), new BigInteger("34"));
Element element1 = new Element(ec, new BigInteger("12"),
new BigInteger("41"));
assertEquals(element1, element1.mul(1));
assertEquals(
element1.add(element1).add(element1).add(element1)
.add(element1), element1.mul(5));
assertEquals(element1.mul(4), new Element(ec, new BigInteger("31"),
new BigInteger("8")));