Novel physical unclonable functions base on RRAM for hardware trojan horse defense technology

Abstract

This study proposes a hardware Trojan horse (HTH) defense technology that uses a novel structure of physical unclonable function (PUF) which is based on resistive random access memory (RRAM). An application-specific integrated circuit (ASIC) combined with the technology can effectively prevent HTH embedded. Unlike the conventional silicon PUFs, the randomness of RRAM PUF is not based on process variation and is determined by the stochastic switching mechanism of the RRAM devices. It has some advantages over the conventional one of high security, high reliability, and low area. Experimental results show that the HfO2 RRAM devices have good performances about Hamming distance and reliability. This work demonstrates the RRAM PUF that has great potential for HTH defense.