Static CMOS Physically Unclonable Function Based on 4T V oltage Divider With 061

Abstract

This article introduces a novel class of static and monostable CMOS physically unclonable functions (PUFs) for hardware security applications. The PUF bitcell is based on a sub- threshold four-transistor (4T) voltage divider as the core block, along with an inverter as the output stage. The 4T voltage divider consists of two series-connected and nominally identical PMOS- only two-transistor (2T) circuits. This allows inherently random bit generation assisted by mismatch while also ensuring inher