LABEL FOR DETREMINING AUTHENTICITY OF A PRODUCT, METHOD FOR PRODUCING AUTHENTICATION CODE OF THE LABEL, METHDO AND SYSTEM FOR DETERMINING AUTHENTICITY OF THE LABEL, MOBILE PHONE FOR DETERMINING AUTHENTICITY OF THE LABEL, AND COMPUTER READABLE MEDIUM FOR DETERMINING AUTHENTICITY OF THE LABEL

摘要

The present invention relates to a security technology for preventing copying of a product, and more particularly, to a label for product authentication, and to a method and an apparatus for authenticating the label. The label for product authentication according to the present invention comprises: a carrier layer made of a transparent or semi-transparent material; and multiple first reflection particles and second reflection particles disposed at random in the carrier layer. In addition, the method for generating an authentication code of a label according to the present invention comprises a step of comparing the difference in brightness between the corresponding grid coordinates of two different images which have been normalized, giving, if the brightness difference falls within a predetermined value range, the code value that classifies the grid coordinate as a complete reflection particle to the relevant grid coordinate, and giving, if the brightness difference is larger than the predetermined value, the code value that classifies the grid coordinate as a deflected reflection particle to the relevant grid coordinate. Moreover, the label authentication system according to the present invention comprises a label registration device for generating a registration authentication code, a label reader for generating a test authentication code, and a label authentication server. Furthermore, the portable wireless terminal according to the present invention comprises a control unit, a display unit, a camera, a wireless communication module, and a memory device for storing a label authentication application program to be executed in the control unit.