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A method for anti-tampering of video content

A video content and anti-tampering technology, applied in the field of video processing, can solve problems such as low efficiency, pornography and violence, and bad social impact.

Active Publication Date: 2018-08-17
HANGZHOU ARCVIDEO TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the content provider is attacked by hackers and the contents of the files (including offline storage files and live distribution files) are maliciously tampered with, if the tampered content involves pornography, violence or reactionary speech, it will cause serious and bad society if it is not discovered and dealt with in time influences
[0003] In order to prevent such accidents, the current common practice is to create an MD5 check code for each file, but in practical applications, it is necessary to create and verify the MD5 value every time, the efficiency is too low, and this method cannot be used in Implemented in live broadcast

Method used

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Embodiment Construction

[0016] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with specific examples. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing the embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0017] The anti-tampering method for video content in one embodiment of the present invention inserts a self-defined structure into a TS or MP4 file. The self-defined structure includes the version number, mode, file length and hash value of the hash algorithm.

[0018] For TS format files, the custom structure is inserted into the PMT table of the TS file, and the custom method for the structure of the TS file is as follows:

[0019] a1. Search two consecutive PMT tables from the head of the TS file, use the hash algorithm to obtain a h...

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PUM

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Abstract

The invention discloses a video content anti-tampering method. A structure is customized and is inserted in a TS (Transport Stream) or MP4 file; the customized structure comprises the version number of a hash algorithm, a mode, a file length and a hash value; in adoption of the video content anti-tampering method, massive stock contents can be upgraded conveniently and rapidly; anti-tampering information is inserted; after adding the anti-tampering information, once the video data is tampered by a hacker, a play end can verify so as to discover timely and prevent the tampered video from being played; with respect to the newly generated video contents, the anti-tampering data can be added easily through the method in the production process; with respect to online services, especially wired or OTT services based on TS streams, the anti-tampering information can be added in real time; whether the anti-tampering information is built can be detected in real time in a set top box player; and therefore, the hacker is prevented from destroying andtampering the video data.

Description

technical field [0001] The invention relates to a video processing method, in particular to a tamper-proof method for video content. Background technique [0002] TS (Transport Stream: ISO / IEC 13818-1) and MP4 (ISO / IEC 14496-12) file formats are currently the two most widely used video file formats with the largest stock. When the content provider is attacked by hackers and the contents of the files (including offline stock files and live distribution files) are maliciously tampered with, if the tampered content involves pornography, violence or reactionary speech, it will cause serious and bad society if it is not discovered and dealt with in time influences. [0003] In order to prevent such accidents, the current common practice is to create an MD5 check code for each file, but in practical applications, it is necessary to create and verify the MD5 value every time, the efficiency is too low, and this method cannot be used in Implemented in live broadcast. Contents of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/236H04N21/2389H04N21/434H04N21/4385
CPCH04N21/23614H04N21/23895H04N21/4345H04N21/43853
Inventor 王雪辉裘昊陈勇
Owner HANGZHOU ARCVIDEO TECHNOLOGY CO LTD
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