Patent ID: 6069955
Filing Date: 2000-05-30
Classification: G06Q,G09C,H04L

Abstract:
A system for verifying the authenticity of a product, comprising:a first visible label on a product containing a serial number and a first encrypted version of said serial number encrypted using a first private key of a first private/public key pair, said first private key known only to an authentic manufacture of the product;a first public key of said first private/public key pair for decrypting said first encrypted version of said serial number to verifying a match to said serial number, wherein a match indicates a first check that the product is authentic;a second label associated with the product hidden from view containing a second encrypted version of said serial number using a second private key of a second private/public key pair, said second private key known only to the authentic manufacture of the product; anda second public key of said second private/public key pair for decrypting said second encrypted version of said serial number to verifying a match to said serial number, wherein a match indicates a second check that the product is authentic.