“…Currently, many studies have proposed solutions to these issues, which are as follows: Using hardware for authentication: This method involves using a keypad together with sensors and smartphones to form a digital door lock system [1], creating a password from a computer or a smartphone and having a user enter digits using the keypad [2], using a wearable device, such as a smartwatch deploying an android application, for identity verification [3], and using RFID for authentication and access control [4]. Using biometrics for authentication: This method includes developing equipment to unlock a door by using a fingerprint scanner for authentication [5][6], the development of a facial recognition system for authentication when accessing a building, where the system can send a notification to a smartphone when an intruder tries to enter a building [7][8] or use an image classification technique for a smart door closer system [9], and using an iris biometric to control access [10]. Using distance for authentication: This system detects the distance between the user and the device to confirm access.…”