A video and audio trusted playback method based on asymmetric encryption

Abstract

The invention discloses a video and audio credible playing method based on asymmetric encryption, and relates to the technical field of digital security, and the method comprises the steps that a publishing end embeds a digital signature encrypted by a private key into a video streaming media in a general transcoding service process of the video streaming media, and pushes the video streaming media embedded with the digital signature to an intermediate network; the client receives the video streaming media through the intermediate network; digital signatures therein is extracted, the digitalsignature is decrypted by using the public key to obtain data for detection; and a detection result is deduced according to the detection data to control the player to play the video streaming media content. According to the invention, the detection process is transferred from the Internet to the transceiving end; by combining the one-way hash algorithm and the asymmetric encryption technology, while it is ensured that the behaviors of tampering and replacing the streaming media in the transmission process can be detected by the user side, the calculation overhead is greatly reduced, the complex asymmetric encryption technology can be applied to video streaming media application, and the basic real-time requirement of the streaming media is met.

Description

technical field [0001] The present invention relates to the technical field of digital security, and more specifically relates to an asymmetric encryption-based video and audio trusted playback method. Background technique [0002] Video streaming media is currently the highest proportion of video data transmission in the Internet. While streaming media provides high real-time network communication services, it has certain security risks. [0003] With the expansion of the Internet scale, the source video often needs to go through the third-party Internet video live broadcast service platform and corresponding video technology service provider through the Internet from the source end to the audience end. Even if it does not pass through the third-party video platform, it needs to be accelerated through a commercial CDN network . In this context, video flows and is distributed among these manufacturers, and the network security levels of these manufacturers are uneven. The b...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is: in order to solve the current lack of verification considerations for the disseminated video content, and it is impossible to determine whether the video streaming media has been illegally replaced in the dissemination channel, the present invention provides a video and audio trusted playback method based on asymmetric encryption , apply asymmetric encryption technology to the key data of encrypted video streaming media, to ensure that the client can detect whether the video streaming media has been illegally replaced in the communication channel according to the encrypted key data, and realize reliable transmission and trusted playback of network video

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