AUTHENTICATION USING GRAPHENE BASED DEVICES AS PHYSICAL UNCLONABLE FUNCTIONS

摘要

The present disclosure relates to secure devices having a physical unclonable function and methods of manufacturing such secure devices. One device includes at least one graphene layer representing a physical unclonable function and a measurement circuit for measuring at least one property of the at least one graphene layer. Another device includes at least a first graphene layer and a second graphene layer representing a physical unclonable function, where one of the graphene layers has been subjected to a variability enhancement such that a measurable property is different for each of the layers. A method includes providing a substrate for a secure device and providing at least one graphene layer on the substrate, the at least one graphene layer representing a physical unclonable function. The providing of the at least one graphene layer includes applying at least one variability enhancement to the at least one graphene layer.