TWO TIER AUTHENTICATION

摘要

There can be provided a complete and flexible multi-tier article authentication system. A number of implementation options are possible, and in one of which an article can include an applied code thereon, which applied code includes an identifier code for the article and a biometric type signature for the article, the biometric type signature having been generated from analysis of intrinsic surface or internal structure of a part of an article to which the applied code is applied.