A New QR Code Multi-layer Encryption System based on Image Geometric Processing

摘要

The QR code is widely used and has low technical threshold. The information in the existing QR code is basically open and the user information is leaked or even maliciously trafficked. Owing to this problem, a new QR code encryption system is proposed in this paper. Taking advantage of the unique image characteristics of the QR code, the geometric processing method of the image is used to carry out the ordered quadratic processing of the two-dimension code through the principle of equivalence class, and the encryption effect of the two-dimension code is achieved. The special generated QR code can only be read by a specific code sweeper, but the general reading mode can not read the effective information of the specific content in the QR code. It is expected to be applied to express company customer information insurance Secret, solving the shared bicycle QR code vulnerabilities and commodity anti-counterfeiting and other civilian areas. It also has high application value in the field of non-civil confidential information transmission.