Anti-counterfeit method based on two-dimensional code

Abstract

A two-dimensional bar code-based anti-counterfeiting method, a label, and a method for manufacturing the label. A two-dimensional bar code (11) and a graphic (12) are integrated for anti-counterfeiting; this prevents the problem of cracking by an unscrupulous person using brute-force attack via a digital code. A second printing carrier is used to obscure the graphic (12); this prevents the problem of the graphic (12) being directly visible to and scanned by the unscrupulous person. The presence or absence of a demarcation line between the first printing carrier and the second printing carrier allows for the distinction of a computer-generated two-dimensional bar code image from a two-dimensional image read by an image-reading device; this prevents the problem of a two-dimensional bar code database being cracked by the unscrupulous person via brute-force attack. Because the second printing carrier is affixed randomly onto the first printing carrier, and information of relative positions of the demarcation line between the first printing carrier and the second printing carrier and of the two-dimensional image is stored in data, consistency of the position of the demarcation line can be analyzed and determined; this prevents the unscrupulous person from manufacturing a counterfeit label by imitating the manufacturing process of the label.

Description

【Technical field】 [0001] The invention relates to an anti-counterfeiting method, in particular to an anti-counterfeiting method based on a two-dimensional code. 【Background technique】 [0002] Anti-counterfeiting is to solve a problem, which is not easy to forge and easy to identify. The purpose of anti-counterfeiting is mainly to distinguish the products of different merchants. Before the development of computer, network and 3C technology, the main method of anti-counterfeiting is that consumers can directly identify the authenticity through the naked eye without tools. The principle of this anti-counterfeiting technology is to use special printing technology to make anti-counterfeiting signs, such as Holographic anti-counterfeiting, because this kind of printing technology is relatively difficult, especially the template is difficult to copy, so the cost of anti-counterfeiting is very high, it is difficult to know the template through reverse engineering after printing, s...

AI Technical Summary

Problems solved by technology

[0008] 1. Consumers are easy to identify, without tools, or with simple tools; 2. Consumers can easily obtain real information and compare it with the product in their hands; 3. Logos are easy to print and make, so production Low cost; 4. The production technology of the logo cannot be obtained by using the reverse engineering principle of the logo itself; 5. The logos of each product are different, so the cost of copying by criminals will be high

[0009] However, the existing anti-counterfeiting technologies cannot all meet the above-mentioned requirements, so their anti-counterfeiting security is not high.

Images