Method and system for encrypting and decrypting two-dimensional code mask
US10659220B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2018 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | Nov 8, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention provides a method and system for encrypting and decrypting two-dimensional code mask. The method comprises: generating a target two-dimensional code containing a function pattern and an identification, an initial mask pattern and a key by a two-dimensional code generating device; sending the identification, the initial mask pattern and the key to a server by the two-dimensional code generating device; sending the identification to the server by the two-dimensional code decoding device; receiving the identification by the server; sending the key and the initial mask pattern to the two-dimensional code decoding device by the server according to the identification; receiving by the two-dimensional code decoding device the key and the initial mask pattern sent by the server; and decrypting the encrypted two-dimensional code by the two-dimensional code decoding device according to the key and the initial mask pattern to acquire the target two-dimensional code. The system has high security.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.