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Stream media file protection method and digital television terminal

A digital TV terminal and media file technology, applied in the field of communication, can solve the problems that the security of the key file cannot be guaranteed, and the security of the key file affects the security of the streaming media file, etc., so as to achieve the effect of ensuring security and good security

Inactive Publication Date: 2013-12-04
SHENZHEN COSHIP ELECTRONICS CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] In the prior art, the AES-128 (Advanced Encryption Standard, Advanced Encryption Standard) algorithm is used to protect the streaming media files played by HLS, but a single protection method for streaming media files using the AES-128 algorithm encryption cannot guarantee the security of the key file. Security, if the key file is not secure, it is likely to affect the security of streaming media files

Method used

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  • Stream media file protection method and digital television terminal
  • Stream media file protection method and digital television terminal
  • Stream media file protection method and digital television terminal

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Embodiment Construction

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0057] See figure 1 , is a schematic flow diagram of a method for protecting a streaming media file provided in an embodiment of the present invention, the method comprising:

[0058] S101, adding device information and digital certificates to the HLS player;

[0059]Specifically, when the resource corresponding to the URL (Uniform Resource Locator, Uniform Resource Locator) address input by the user is played by HLS, the digital TV terminal can add device informa...

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Abstract

An embodiment of the invention discloses a stream media file protection method and a digital television terminal. The method includes the steps: adding device information and a digital certificate into an HLS (HTTP live stream) player; transmitting a download request to a server through the HLS player and transmitting the device information and the digital certificate to the server through the HLS player; receiving a stream media file returned by the server and a key file for decoding the stream media file. The returned stream media file and the key file for decoding the stream media file are returned as the server responds to the download request after the device information and the digital certificate pass verification. By the method, safety of the key file and the stream media file can be effectively ensured.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method for protecting streaming media files and a digital television terminal. Background technique [0002] HLS (HTTP Live Stream, an HTTP-based streaming network transmission protocol) allows content providers to provide near-real-time audio and video streaming services to clients through network servers, including live broadcast and on-demand. HLS supports encoding the same program into multiple alternative streams with different bit rates, and the client software can intelligently switch between these alternative streams with different bit rates according to changes in network bandwidth. HLS supports media copyright protection through media encryption. [0003] In the prior art, the AES-128 (Advanced Encryption Standard, Advanced Encryption Standard) algorithm is used to protect the streaming media files played by HLS, but a single protection method for streaming med...

Claims

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Application Information

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IPC IPC(8): H04N21/83H04N21/835H04N21/40
Inventor 何荣虎
Owner SHENZHEN COSHIP ELECTRONICS CO LTD
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