public void TestAES256Encrypt() { byte[] block = Encoding.ASCII.GetBytes("00000000000000000000000000000000"); byte[] key = Encoding.ASCII.GetBytes("1234567812345678"); byte[] result = block.AES256Encrypt(key); string encryptString = result.ToHexString(); encryptString.Should().Be("f69e0923d8247eef417d6a78944a4b39f69e0923d8247eef417d6a78944a4b39"); }