Vortex Spin Torque Nano Oscillator-based PUF and TRNG Design for Lightweight Security Solutions

This paper addresses the limitations of traditional CMOS-based hardware security primitives by proposing an integrated physical unclonable functions (PUFs) and true random number generators (TRNGs) design utilizing the MTJ with vortex spin-torque nano oscillator (V-STNO) functionality. Considering the variation in V-STNO frequencies, the uniqueness and reliability of PUF are calculated as 50.3% and 97.41%, respectively. It demonstrates compactness with a relatively lower gate count and achieves low power consumption at $2.4 \mu \mathrm{W}$ per bit.