Memristor Based Arbiter PUF: Cryptanalysis Threat and Its Mitigation
Urbi Chatterjee, Rajat Subhra Chakraborty, Jimson Mathew, Dhiraj K. Pradhan · 2016
Physically Unclonable Function (PUF) circuits are promising hardware security primitives. Recently a hybrid CMOS-memristor based lightweight PUF circuit was described by Mathew et al., and shown to be resistant against machine learning based model building attack. In this paper we demonstrate that such a PUF is vulnerable to cryptanalysis. We then propose a modification to the circuit to make it resistant against cryptanalysis, while retaining its robustness against machine learning attacks, and its low hardware footprint. We demonstrate the suitability of our proposed PUF through extensive simulation results and statistical characterization.