An Overview of Spintronic True Random Number Generator

A True Random Number Generator is an essential component in data encryption, hardware security, physical unclonable functions, and statistical analyses. Conventional CMOS devices usually exploit the thermal noise or jitter to generate randomness, which suffers from high energy consumption, slow bit generating rate, large area, over-complicated circuit. In this mini review, we introduce novel randomness mechanism based on stochastic switching behavior of magnetic tunnel junctions. As compared technologies, random number generator spintronic can have many inherent advantages, such as simpler structure, compact higher throughput, better energy-efficiency. Here, review compare various existing schemes at device circuit levels achieve performance junctions a Generator. Future research trends challenges are also discussed stimulate more works area.