Product Packaging Authentication

摘要

A method of authenticating product packaging is disclosed. The packaging has disposed thereon coded data including a number of coded data portions. Each coded data portion is indicative of an identity of the packaging and a part of a signature. The signature is a digital signature of at least a part of the identity of the packaging and comprises a plurality of signature parts. The method starts by receiving indicating data from a sensing device. The sensing device is responsive to sensing one of the coded data portions to generate the indicating data which is indicative of the identity of the packaging, the part of the signature, and a signature part identifier. A determined signature is then determined using the identity of the packaging. Next, a determined signature part is determined using the determined signature and the signature part identifier. Finally the packaging is authenticated by comparing the determined signature part and the part of the signature.