public void TestDes() { String skey = "1234567890123456"; //string ddd = Convert.ToBase64String(Encoding.UTF8.GetBytes("1231313")); string dd = CryptUtil.EncryptDes("15611802686", skey); string cc = CryptUtil.DecryptDes("SWRjRMW1EH6SiDtUq2Pj+4Mtscup+IFzsu4aj4REJZ9cgSI0zD4kEQ==", skey); Assert.AreEqual("Z4bEu0glHasENUzgYotuiw==", dd); }