In one embodiment of a user authentication system and method according to the invention, a device shares a secret, referred to as a master seed, with a server. These features may be employed alone or in combination to offer improved usability and computational efficiency for real time control and monitoring of a semiconductor manufacturing process. The two winding plates are arranged inside the base, the two communication cables are rolled around the two winding plates, respectively, and the volute spring is connected between the two winding plates.