Multimedia broadcasting system, method and system for safely playing multimedia broadcasting contents

Abstract

The invention provides a multimedia broadcasting system, a method and a system for safely playing multimedia broadcasting contents, in particular relates to a terminal system for safely playing the multimedia broadcasting contents. The terminal system for safely playing the multimedia broadcasting contents comprises an encrypted related information extracting module and a channel and multiplexingcontrol information decrypting module, wherein the encrypted related information extracting module is used for extracting an encrypted related message and a channel and multiplexing control information cipher text from received broadcasting information; and the channel and multiplexing control information decrypting module is coupled with the encrypted related information extracting module, and performs the decryption operation on the channel and multiplexing control information cipher text according to the encrypted related message to obtain channel and multiplexing control information. The terminal system for safely playing the multimedia broadcasting contents can prevent illegal contents from being received and broadcasted by encrypting the channel and multiplexing control information.

Description

technical field [0001] The invention relates to a multimedia broadcasting system and method, in particular to a method and system for realizing safe broadcasting in a mobile multimedia broadcasting system. Background technique [0002] Broadcasting systems, especially multimedia broadcasting systems for mobile terminals or mobile phones, have been more and more commonly used in various fields in recent years. These multimedia broadcasting systems generally include basic operating services and value-added operating services. For example, TV broadcasting, sound broadcasting, electronic business guide and emergency broadcasting can be regarded as basic multimedia operation services. And real-time and / or non-real-time data broadcasting services, such as network audio-visual broadcasting and financial, traffic and government order broadcasting, are also operating services of the multimedia broadcasting system. [0003] However, while the broadcasting system is widely used, its ...

AI Technical Summary

Problems solved by technology

The former cannot guarantee security, and although the latter can basically solve the security problem of broadcast content through the above-mentioned method, it needs to make great improvements to the current broadcast system and the receiving end, and because it involves a large number of digital signature operations, the broadcast The data processing capability of the system also has higher requirements

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