High-density two-dimensional security code generation method and forgery and falsification prevention method

WO2025095650A1PCT designated stage expired Publication Date: 2025-05-08KOREA MINTING SECURITY PRINTING & ID CARD OPERATING CORP +1
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Patent Information

Application Number
PCT/KR2024/016973
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-11-02
Filing Date
2024-10-31
Publication Date
2025-05-08

AI Technical Summary

Technical Problem

Conventional two-dimensional barcodes have limitations in information capacity and security, making them vulnerable to forgery and data manipulation, especially in tracking production and distribution history of products.

Method used

A method is developed to create a high-density secondary security code by incorporating physical security elements that cannot be forged, using a barcode area with encoded data and a space data area with physical security elements, and verifying the code through unique identification codes and physical security element preservation status.

Benefits of technology

The method effectively prevents forgery and unauthorized cloning of high-density secondary security codes, enhancing security by limiting decoding to terminals with the corresponding high-density one-time security code, thus improving data integrity and authenticity.

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Abstract

The present invention relates to a high-density two-dimensional security code generation method and a forgery and falsification prevention method, the method comprising steps in which a high-density two-dimensional security code generating device: sets a barcode area for encoding data by using a plurality of pixels in which light and shade intersect; sets a blank data area in the barcode area in which data will not be encoded; uses a plurality of pixels to encode data in the barcode area excluding the blank data area; and generates a high-density two-dimensional security code by arranging, in the blank data area, a physical security element used for high-density two-dimensional security code authentication.
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Citation Information

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