SECURE COMMUNICATION BETWEEN SERVER DEVICE AND CLIENTS UTILIZING STRONG PHYSICAL UNCLONABLE FUNCTIONS

摘要

A client device is manufactured by using a semiconductor manufacturing process. In a semiconductor manufacturing process, one or more uncontrollable random physical processes may cause small differences between client devices and other client devices. When an attempt from a server device is presented to a client device, the client device generates a random response dependent on the physical properties thereof. The server device stores the random response as a part of a virtual physical unclonable function (PUF) circuit storage device with other random responses from other client devices. The server device uses a random response of the client device stored in the virtual PUF circuit storage device for one or more encryption algorithms to encrypt information to be provided to the client device.