In our system, a wireless device can take use of Rolling Code to enhance its data security.
A rolling code (or sometimes called a hopping code) is used in wireless system to prevent replay attacks, where an eavesdropper records the transmission and replays it at a later time to cause the receiver to 'unlock', 'false alarm', 'false operation'¡
SEICS allows the device itself to decide if it needs Rolling Code, thus you can change a device without changing others.
