Method of really authentication using digital hologram tag converted by computer generated hologram

摘要

The present invention comprises the steps of generating a product unique code and then storing it in a server; Generating a text for the product's unique code stored in the server as a specific image file and storing the text in association with the corresponding unique code; A first CGH encryption step of extracting a specific image file stored in the server in conjunction with the corresponding unique code and converting it into an original digital hologram security tag as a computer generated hologram (CGH); A second CGH encryption step of arbitrarily manipulating pixels in a specific area among the original digital hologram security tags converted through the first CGH encryption to convert them into a modified digital hologram security tag; Printing a modified digital hologram security tag converted through second CGH encryption and combining it with a corresponding product; Photographing a modified digital hologram security tag of a corresponding product using a mobile communication terminal interlocked with the server and transmitting the information to the server; A first CGH decoding step of restoring pixels in a specific area arbitrarily manipulated among the modified digital hologram security tags transmitted through the server to their original positions and converting them into an encrypted original digital hologram security tag; A second CGH decoding step of extracting a specific image file by restoring the original digital hologram security tag converted through the first CGH decoding as CGH; Determining whether the specific image extracted through the second CGH decoding matches the corresponding image linked with the unique code of the corresponding product stored in the server; Transmitting a result of a match between the information of the modified digital hologram security tag coupled to the product and the information of the corresponding product stored in the server to the mobile communication terminal; and security of the digital hologram tag converted by the computer-generated hologram comprising Provides an enhanced level of product activation method.