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Parmesan Makers Add Microchips To Cheese Wheels To Foil Counterfeiters (www.tomshardware.com)

submitted 1 year ago by floofloof@lemmy.ca to c/technology@lemmy.ml

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[–] roguetrick@kbin.social 12 points 1 year ago (1 children)

The photocells, when illuminated by a pulsed laser, provide power to the electronic circuits on the chip with ~10% efficiency. The chip transmits its ID through modulated current in the antenna. The varying magnetic field around the chip is received by a nearby coil in the reader, and the signal is digitized, analyzed, and decoded.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5896163/

So it's security is that it's not near field based but photovoltaic based. You'd have to copy it's design to clone it.

[–] otter@lemmy.ca 9 points 1 year ago

That's pretty cool even without the cheesy factor