public void Keys_Should_ReturnAllSavedKeys()
        {
            var storage = new SecureStorage();
            var data    = faker.Random.Bytes(32);
            var key     = "my_key_1";
            var key2    = "my_key_2";

            storage.Save(key, data);
            storage.Save(key2, data);
            var keys = storage.Aliases();

            Assert.AreNotEqual(Array.IndexOf(keys, key), -1);
            Assert.AreNotEqual(Array.IndexOf(keys, key2), -1);

            storage.Delete(key);
            storage.Delete(key2);
        }