FileStore.FileStore.EncryptData C# (CSharp) Method

        private byte[] EncryptData(byte[] data)
        {
            if(_useDPAPI) {
                try {
                    return ProtectedData.Protect(data, null, DataProtectionScope.CurrentUser);
                }
                catch(Exception e) {
                    Debug.ReportError("Failed to encrypt data using DPAPI. Exception: {0}", e.Message);
                    return new byte[0];
                }
            }
            else {
                InitEncryptionAlgorithm();

                RijndaelManaged aes = null;
                ICryptoTransform encryptor = null;
                CryptoStream encStream = null;
                MemoryStream inputStream = null;

                try {
                    inputStream = new MemoryStream();
                    aes = new RijndaelManaged();
                    aes.IV = EncryptionIV;
                    aes.Key = _encryptionKey;
                    encryptor = aes.CreateEncryptor(_encryptionKey, EncryptionIV);

                    // encrypt
                    encStream = new CryptoStream(inputStream, encryptor, CryptoStreamMode.Write);

                    encStream.Write(data, 0, data.Length);
                    encStream.FlushFinalBlock();
                    encStream.Close();

                    return inputStream.ToArray();
                }
                catch(Exception e) {
                    Debug.ReportError("Failed to encrypt data using AES. Exception: {0}", e.Message);
                    return new byte[0];
                }
                finally {
                    if(aes != null) {
                        aes.Clear();
                    }
                    if(encStream != null) {
                        encStream.Close();
                    }
                    if(inputStream != null) {
                        inputStream.Close();
                    }
                }
            }
        }