Image encryption method, image viewing method, system, and terminal
US10922435B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 10, 2015 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Mar 8, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/6245
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image encryption method, an image viewing method, a system, and a terminal are provided. The image encryption method includes: editing an original image, saving the edited original image as a first image file; encrypting the original image to generate an encrypted data block; and, splicing the first image file with the encrypted data block to generate and save a partially-encrypted image file. The image viewing method includes: when determining that indication information used for indicating partial encryption process is carried in an image file, decrypting an encrypted data block, and displaying data of an original image obtained after decrypting successfully; herein, the partially-encrypted image file is formed by splicing the first image file and the encrypted data block, the first image file contains edited original image data, and the encrypted data block corresponds to encrypted original image data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.