An analysis of the behaviour of a PUF based on ring oscillators depending on their locations

In this paper, an analysis regarding the influence of the chosen locations of the ring oscillators in the performance of a ring oscillator Physically Unclonable Function has been carried out. For this purpose, five different strategies to select a small set of locations out of a big set of locations to construct a PUF have been proposed and compared. The analysis reflects that, depending on the chosen selection strategy, the quality of the PUF can be greatly affected, especially in terms of uniqueness.

Automated summary

This paper analyzes the influence of the chosen locations of ring oscillators on the performance of a physically unclonable function (PUF). Five different selection strategies are proposed and compared for constructing a PUF using a small set of locations out of a larger set. The analysis shows that the quality of the PUF, especially in terms of uniqueness, can be greatly affected depending on the selection strategy.