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Screenshot leakage prevention method and device

An anti-leak, screenshot technology, applied in the field of data security, can solve the problems of reducing product usability, user unfriendliness, destruction, etc., to prevent illegal screenshots and facilitate viewing and editing.

Inactive Publication Date: 2017-10-20
北京明朝万达科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The rejecting screen capture method in the prior art leads to the user’s reasonable screen capture behavior being artificially destroyed, which greatly reduces the usability of the product and is very unfriendly to users

Method used

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  • Screenshot leakage prevention method and device
  • Screenshot leakage prevention method and device

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Experimental program
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Embodiment Construction

[0061] Such as figure 2 , is the flow chart of generating encrypted watermark in the present invention:

[0062] (1) Create a process and inject the watermark processing DLL.

[0063] (2) Request the user policy from the server.

[0064] (3) According to the issued strategy, it is judged whether it is a controlled process (that is, screen capture control is required), and if not, it is not processed.

[0065] (4) If it is a controlled process, obtain the user ID and key.

[0066] (5) Using conversion algorithm to generate image encryption watermark based on user identification and key.

[0067] Such as image 3 , is the screenshot control flowchart of the present invention:

[0068] (1) Use HOOK technology to intercept the screenshot operation.

[0069] (2) Determine the type of screen capture. If the screen capture is selected by the mouse, it is necessary to additionally obtain the size and position of the screen capture area.

[0070] (3) Intercept and set the clipb...

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PUM

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Abstract

The invention discloses a screenshot leakage prevention method and device. The method comprises the following steps of: intercepting a screenshot operation of a user; judging a type of the screenshot operation; obtaining an image in a shear plate according to the type of the screenshot operation; merging the obtained image in the shear plate with a user encrypted watermark image; assimilating the merged image; and writing the merged and assimilated image back into the shear plate. Through the method and device disclosed by the invention, illegal screenshot can be prevented friendlier, and the pictures can be conveniently checked and edited by the employees under controllable conditions.

Description

technical field [0001] The invention relates to the field of data security, in particular to a screen capture anti-leakage method and device. Background technique [0002] Now, major companies, enterprises and government departments are paying more and more attention to network security issues, but employees often leak data through screenshots. At this stage, security vendors have two methods of anti-screen capture technology: one is to prohibit screen capture, and the other is to allow screen capture, but after processing, the captured image is pure black or other unrecognizable content. [0003] Among the products sold in the market at this stage, the anti-screenshot function in the DLP document encryption products of security vendors is somewhat similar. At this stage, the anti-screen capture process of DLP products of security manufacturers is attached figure 1 : [0004] 1) Open the document; [0005] 2) Intercept the screenshot operation; [0006] 3) Refuse to tak...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/60
CPCG06F21/602G06F2221/2107
Inventor 曲恩纯王志海喻波彭洪涛王志刚
Owner 北京明朝万达科技股份有限公司