Pervasive, dynamic authentication of physical items

Authentication of physical items is an existing problem. It is difficult to make hologram-based authentication pervasive; a casual verifier does not know all the attributes to look for. Further, to achieve pervasive authentication, it is useful for the authentication modality to be easy to integrate with modern electronic devices and to be easy for non-experts to use. Identification is not the same as authentication. A public identifier alone cannot distinguish a genuine product from a counterfeit copy, since it is static and can be openly queried. An adversary can ‘get ahead’ of a legitimate authentication event by querying a genuine product ahead of time, and subsequently replaying the response or making a copy of the identifier.

Jaar van publicatie:2017