PUF DEVICE THAT MANUFACTURE PHYSICAL UNCLONABLE FUNCTIONS CODE

摘要

An apparatus for manufacturing a PUF code is disclosed. PUF code manufacturing apparatus according to the present invention, 2D printing unit for printing a ring-shaped 2D code layer on the back of the provided transparent film; A first printing unit for printing a ring-shaped base layer on the back surface of the 2D code layer for clear recognition of the 2D code layer; 3D printing unit for printing a 3D code layer on the back of the transparent film located in the center portion of the base layer printed in a ring shape; A second printing unit for printing a light absorption layer on the bottom of the base layer and the 3D code layer so that the light reflected from the 3D code layer is transmitted to the transparent film; A third printing unit printing a protective layer on a rear surface of the light absorbing layer to protect the light absorbing layer; An adhesive unit forming an adhesive layer and a release paper on a rear surface of the protective layer; And a cutting unit cutting the physical copy protection (PUF) label including the transparent film, the 2D code layer, the base layer, the 3D code layer, the light absorbing layer, the protective layer, and the adhesive layer so as to be separated from the release paper into a predetermined shape. It features. According to the present invention, a light absorbing layer for inherent light reflection by the 3D code layer is made consistent and clear, and a protective layer for compensating for minute print defects on the back and effectively reducing cracks or damage of the printed layer. With this, the recognition rate can be improved when authenticity is determined for the physical copy protection label, and the label can be continuously manufactured through a series of sequential processes.