public void SrpIntegerToString()
        {
            var si = new SrpInteger("2");

            Assert.AreEqual("<SrpInteger: 2>", si.ToString());

            // 512-bit prime number
            si = new SrpInteger("D4C7F8A2B32C11B8FBA9581EC4BA4F1B04215642EF7355E37C0FC0443EF756EA2C6B8EEB755A1C723027663CAA265EF785B8FF6A9B35227A52D86633DBDFCA43");
            Assert.AreEqual("<SrpInteger: 0d4c7f8a2b32c11b...>", si.ToString());
        }