A self-erasing chip for security and anti-counterfeit tech
news.umich.edu
news.umich.edu
What prevents someone who's tampering with a device to rewrite the chip using the previously displayed value (or replace the chip) as to reset the time limit?
I don't see what kind of attack vector this mitigates.
They also had a battery that if it ran out, would wipe temporary keys.
This seems like similar tech.
Wait… what? What's the point of this if you can re-write the original message on it after tampering with the chip?