Design and Implementation of Configurable RO and Adjacency-based Comparison for FPGA-based PUF

Abstract

Physical Unclonable Function is used for device authentication and key generation It can generate secret information on the chip without storing critical information The ring oscillator has attracted much attention because it is easy to implement on the Field Programmable Gate Array (FPGA) However due to structural differences and regional potential deviations not all challenge and response pairs are suitable for use and when we choose a highly unique response the change in the operating environment will lead to instability The ring oscillator is based on the adjacency-comparison which use cooperative architecture and utilize Programmable delay line to configure the ring oscillator without affecting the response obtained under the comparison strategy So that the selected ring oscillator pair frequency difference is more significant at the same time for improving the performance of the FPGA PUF The method can reach 0 4% intra-HD and 49 3% inter-HD

Date of Award	2020
Original language	English
Supervisor	Ming-Der Shieh (Supervisor)