| 摘要 |
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. |
