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Decipher processing method for digital content format

A processing method and technology for content keys, which are applied in the fields of electronic digital data processing, analog security/charging systems, instruments, etc., can solve the problems affecting the promotion and application of SDCF, and the decryption processing method has not changed, so as to simplify the operation and expand the promotion. and application-wide effects

Inactive Publication Date: 2009-06-24
SHANGHAI AISINOCHIP ELECTRONICS TECH
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AI Technical Summary

Problems solved by technology

[0006] In view of the problems existing in the above-mentioned prior art, although a simplified digital rights management content format (Simplified DRM Content Format, SDCF for short) is proposed at present, it can greatly simplify the digital content format to reduce network load and meet technical requirements ; But its corresponding decryption processing method has not changed, which affects the promotion and application of SDCF

Method used

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  • Decipher processing method for digital content format
  • Decipher processing method for digital content format
  • Decipher processing method for digital content format

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Embodiment Construction

[0025] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings, but this embodiment is not intended to limit the present invention, and any decryption processing method that adopts the SDCF data format similar to the present invention should be included in the protection scope of the present invention .

[0026] The present invention can be applied to the following scenarios:

[0027] 1) Provide VOD on-demand service, and decrypt and play streaming media files in SDCF format;

[0028] 2) Provide real-time live broadcast service, and decrypt and play the streaming media data stream in SDCF format;

[0029] 3) Provide time-shifted playback service, and decrypt and play segmented streaming media files that meet the SDCF format;

[0030] 4) Provide other digital content services, and decrypt and use the corresponding digital content that meets the SDCF format.

[0031] Because in network transmission, the data in ...

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Abstract

The invention discloses a decryption processing method of SDCF and relates to the technical field of digital copyright protection, aiming at solving the technical problem of SDCF decryption processing. The decryption processing method relates to the following platforms: a DRM agent of a set-top box, a DRM copyright releasing system and a middleware; wherein, the DRM agent comprises an RO management module, a key management module, a content decryption module, a monitoring control module with a playing-before control submodule, a player, a browser and the like. The decryption processing method comprises the following steps: 1) users select programs by a user interface and acquire a global unique program logo and the URL of the program contents; 2) according to the program logo, the playing-before control submodule locally searches the corresponding RO and checks the limits to rights; 3) according to the URL in a data packet for transmitting digital contents, the content decryption module acquires the corresponding RO, a decryption mode and a content key to finish the decryption. The decryption processing method has the characteristics that: the network load can be reduced; the operation is simple and convenient; and the technical requirements can be satisfied.

Description

technical field [0001] The invention relates to digital copyright protection technology, in particular to digital content protection technology in operation. Background technique [0002] Digital content services are characterized by high quality, interactivity, and customization, which can bring users more freedom, richer and therefore more attractive consumption experience, and at the same time bring greater market and profits to content providers and operators However, strong demand and high profits have also attracted many pirate groups to try to illegally copy digital content and earn huge profits. Digital copyright protection has emerged as the times require. It uses necessary, feasible and reasonable technical means to protect the digital content in operation, in order to maintain the legal rights of content provision and operators, and to ensure the basic order of the digital market to maintain positive and positive incentives. To ensure the healthy and sustainable ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/16H04N7/173G06F21/00
Inventor 周玉洁朱念好胡霞
Owner SHANGHAI AISINOCHIP ELECTRONICS TECH
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