Watermark shading-based anti-screen-shooting-attack traceability evidence obtaining system and method

Abstract

The invention discloses a watermark shading-based anti-screen-shooting-attack traceability evidence obtaining system and method. The system comprises an anti-screen-shooting watermark shading and screen display content fusion module and a screen-shooting image traceability evidence obtaining module. The method comprises the following specific steps: 1, obtaining traceability information, and performing effective two-dimensional coding to obtain a two-dimensional code image; 2, constructing a source tracing watermark shading image; 3, performing effective fusion of the watermark shading image and the screen display content; and 4, shooting the effective fused screen, obtaining an image shot by the screen, and carrying out traceability evidence obtaining. According to the invention, leakageof sensitive information in a unit caused by a screen photographing or screen capturing mode can be effectively prevented, and traceability tracking of a leakage source can be realized; the traceability information and the screen display content are effectively fused in the form of watermark shading; the concealment is strong and the visual interference is small; and the watermark shading method is robust, and even if only part of the screen is captured, the traceability information can still be decoded.

Description

technical field [0001] The invention relates to a system and method for traceability and evidence collection based on watermark shading and resisting screen capture attacks. Background technique [0002] With the widespread use of smart phones, stealing sensitive information within the unit through mobile phone screen photography and video recording has gradually become the main way to leak important information. How to prevent confidential and sensitive information from being leaked through screen photography and video recording is a One of the problems urgently needed to be solved in the secrecy work. The traditional solution is to use visible screen watermarking technology, but because the watermark is clearly visible in this type of solution, it is easy to remove it by professional software, thus losing the function of traceability and evidence collection. The present invention edits relevant traceability information into watermark shading, which can effectively resist ...

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