An identification method to identify whether a user is a authorized user includes coupling a portable device with a biometric scanning device to a computer emulating the portable device as a biometric scanning device scanning a user’s biometric to get a biometric data and comparing this biometric data with at least one authorized biometric data to determine whether the user is an authorized user or not.本發明之身份認證方法,係用以判定一機台之使用者是否為合法使用者,該方法至少包含將一具有一生物特徵辨識器之可攜式電子裝置耦接於此機台;接著模擬此可攜式電子裝置為該機台之生物特徵辨識器;當模擬完成後,由此可攜式電子裝置掃描使用者之生物特徵,藉以獲得一生物特徵資料;最後比對生物特徵資料,並根據比對結果判定該使用者是否為合法使用者。501~517...步驟