@Test
public void multiply() {

  FieldElement element1 = BigIntegerFieldElement.create(1, modulus);
  FieldElement element2 = BigIntegerFieldElement.create(2, modulus);
  FieldElement element3 = BigIntegerFieldElement.create(4, modulus);
  BigInteger result1 = BigIntegerFieldElement
      .extractValue(BigIntegerFieldElement.create(27, modulus).multiply(element1));
  BigInteger result2 = BigIntegerFieldElement
      .extractValue(BigIntegerFieldElement.create(43, modulus).multiply(element2));
  BigInteger result3 = BigIntegerFieldElement
      .extractValue(BigIntegerFieldElement.create(76, modulus).multiply(element3));
  BigInteger result4 = BigIntegerFieldElement
      .extractValue(BigIntegerFieldElement.create(98, modulus).multiply(element2));
  BigInteger result5 = BigIntegerFieldElement
      .extractValue(BigIntegerFieldElement.create(112, modulus).multiply(element3));
  assertThat(result1, Is.is(BigInteger.valueOf(27)));
  assertThat(result2, Is.is(BigInteger.valueOf(86)));
  assertThat(result3, Is.is(BigInteger.valueOf(78)));
  assertThat(result4, Is.is(BigInteger.valueOf(83)));
  assertThat(result5, Is.is(BigInteger.valueOf(109)));
}