About this app
PUF simulator
Two identical chips, two different fingerprints
A physical unclonable function (PUF) turns microscopic manufacturing differences into a response nobody can copy. Set a challenge, then ask two chips made from the same design. This demo runs a simulated arbiter PUF in your browser.
Challenge
Chip A
················
Chip B
················
Responses appear here. Bits where the chips disagree get a butter-yellow ring.