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

RFID Signature Visualization with LED Wand

Immaterials: the ghost in the field from timo on Vimeo.

Alien Technology RFID Tag Signature Authentication Addresses Cloning

Alien Technology has implemented dynamic authentication as a feature on its Higgs-3 RFID chip, enabling data security to confront cloning. ...

... "Dynamic Authentication further enhances security of the Higgs-3 IC by incorporating a challenge/response algorithm which defeats static cloning attempts of the Higgs-3 IC. This innovative custom feature is a verification process comprising a dynamic interaction between the reader and the tag, and is a function of several parametric tag characteristics whereby the tag’s signature is challenged by the reader for Higgs-3 authenticity and confirmed by the host to provide customers with a cost effective, secure identification measure. " ...

Via Alien Technology: Higgs-3 RFID IC Security with Dynamic Authentication