Video safety monitoring method and system

Abstract

The invention provides a video safety monitoring method and system, and the method includes the steps: acquiring key frame data of a video source code stream; encrypting the key frame data of the video source code stream to generate first encrypted information; acquiring key frame data of a video end code the stream; encrypting the key frame data of a video end code stream to generate second encrypted information; decrypting the first encrypted information and the second encrypted information, comparing the key frame data of the video source code stream and the frame data of the video end codestream after decryption, and obtaining a comparison result; and judging whether the content of the code stream is abnormal or not according to the comparison result. In the technical scheme of the invention, the method and system reduce the data size of the encrypted contents, shorten the code stream monitoring delay time, and improve the code stream monitoring efficiency and real-time performances. Meanwhile, the method and system can improve the code stream monitoring correct rate.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a video security monitoring method and system. Background technique [0002] With the continuous development of Internet technology and the improvement of network bandwidth capabilities, video services have shown explosive growth, and video viewing users have reached a considerable scale, so the security of video transmission has become an urgent problem to be solved, especially IPTV (Internet Protocol Television, live video service), requires both real-time performance and security, making monitoring more difficult. During the video transmission process, the code stream content is easily tampered with or replaced, which may cause illegal content to be played on the terminal, posing a security risk. [0003] Among related technologies, there are mainly DRM (Digital Rights Management, digital rights management), MD5 (Message Digest 5, message digest algorithm fifth ...

AI Technical Summary

Problems solved by technology

However, for DRM technology, it has not been widely used in domestic IPTV at present, and the cost is too high

[0004] For MD5 security detection technology: Since a single security key cannot guarantee the security of encryption, there is a risk of tampering with the security key during transmission or other processes, and if the key is not secure, it is likely to affect the security of the video code stream

[0005] For two-level key strong security transmission technology: Since this technology requires two-level signature and verification for all transmitted video streams, it takes a lot of computing resources and time, the verification process is complicated, and the running time period is too long, especially for real-time The live broadcast service with extremely high requirements cannot meet the requirements

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