Verayo RFID Puf Authentication

Verayo uses challenge techniques to validate signature of chips, which will be used to enable object authenticity. ...

... "Then you put the chip into a radio identification tag (RFID) that can be attached to a retail product as if it were a bar code. When someone buys that product, a reader at the cash register will read the serial number on the tag. " ...

Via VentureBeat: Verayo technology adresses counterfeiting