Method for protecting copyright of video content

Abstract

The invention relates to a copyright protection method of video content, which belongs to the technical field of copyright protection. A play module uses the RTSP protocol of the video program to acquire a SDP document and sends the requests for examining the play authority to a DRM Agent. The DRM Agent searches RO locally and implements integrality validation; if the RO is not found or the DRM Agent fails the validation, new RO should be purchased with RI; if the DRM Agent passes the validation, the video content key is acquired from the RO and the content of the selected video program is decoded and then the playing module decodes, plays and stops the program. By upgrading the usage limits in the RO and the RO status word in time, the RO security is effectively enhanced. The invention has the advantages that an SIM card is introduced to ensure the storage security of the RO and the purchased digital content authority could be also used after user replaces the mobile terminal equipment; in this way, the invention could be widely used and suitable to the consumption habits of users.

Description

technical field [0001] The invention relates to a copyright protection method for video content, belonging to the technical field of digital copyright protection. Background technique [0002] China's third-generation mobile communication (hereinafter referred to as 3G) era is approaching, and various new services based on 3G networks are emerging one after another. Mobile video services represented by mobile TV live broadcast, mobile video on demand, and video calls are undoubtedly the most promising among them. one of the businesses. At the same time, illegal misappropriation and infringement of video content on mobile platforms have been repeatedly prohibited. These infringements are not conducive to the healthy and orderly development of mobile video services and mobile communications. [0003] The problem to be solved by digital rights management technology is to protect the security of digital content with copyright, and to regulate the use of digital content by users...

AI Technical Summary

Problems solved by technology

However, in reality, this measure needs to involve many interested entities such as mobile terminal equipment manufacturers, content providers, mobile operators and CA institutions, and it is difficult to implement

[0005] 2. The realization is not strong

However, the current general-purpose mobile terminal devices such as mobile phones do not have the above-mentioned security hardware devices, so they cannot protect the security of sensitive information such as content keys.

[0006] 3. Does not meet the consumption habits of users

If the mobile terminal equipment is replaced or lost, the user needs to purchase the copyright of the content again, which does not satisfy the user's consumption habits

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