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System and method for realizing real time medium copyright protection

A technology of copyright protection and media, applied in the system field of realizing real-time media copyright protection

Inactive Publication Date: 2008-02-06
北京数码视讯软件技术发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Another main purpose of the present invention is to provide a method for realizing real-time media copyright protection, to solve the problem of copyright protection of real-time program streams in the digital media live broadcast environment, and to realize real-time media copyright protection

Method used

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  • System and method for realizing real time medium copyright protection
  • System and method for realizing real time medium copyright protection

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Embodiment

[0141]In this embodiment, the key information stored in the key information storage unit of the authorization issuance unit is a valid certificate, corresponding to the certificate, the public key of the terminal agent unit and the private key of the authorization issuance unit; The key information stored in the key information storage unit is a valid certificate, corresponding to the certificate, the public key of the authorized issuing unit and the private key of the terminal agent unit.

[0142] As shown in Figure 3, Figure 3 is a flow chart of a method for realizing real-time media copyright protection in an embodiment of the present invention, the method comprising the following steps:

[0143] Step 301: The media source content processing unit performs metadata processing and watermark insertion operations on the media source content, then encrypts the processed media source content according to the CEK received from the CEK generation unit to generate encrypted content, ...

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Abstract

The present invention discloses a system which can realize the copyright protection of the media in real time, and includes a content issuance unit used to process the media source content to generate encryption content, CEK is encrypted to generate key encryption information, the encryption content, the key encryption information and the auxiliary information that are generated are sealed to product DCP, the DCP produced is issued to a terminal substitutive unit; an authorized issuance unit used to decrypt the authorized requirement and authorize the certificate, after ensuring the availability of authorization, the authorization information is generated, the authorized information and REK are encrypted to generate encrypted RO, and the encrypted RO is sent to the terminal substitutive unit; and the terminal substitutive unit used to decompose the received the DCP, the encrypted RO is obtained according to discomposed content logo information, the obtained encrypted RO is decrypted to generate the authorized information and the REK, according to the REK, the decomposed key encryption information is decrypted to generate the CEK, according to the CEK, the encrypted content is decrypted to generate the media source content. The present invention discloses a method to realize real time media copyright protection.

Description

technical field [0001] The invention relates to the technical field of digital media copyright protection, in particular to a system and method for realizing real-time media copyright protection. Background technique [0002] With the continuous development of the information society, digital media has become extremely rich. However, due to the characteristics of digital media content, the copied copy is exactly the same as the original, and the cost of copying and disseminating digital content is extremely low, so the problem of online piracy and illegal dissemination of digital media content has become a problem that has long plagued network operators and content providers. The problem, and then the problem of copyright protection is also more and more concerned by the majority of network operators and content providers. [0003] As the issue of copyright protection continues to heat up, the emergence of peer-to-peer transmission (Peer to Peer, P2P) technology once trigge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/00G06F21/10
Inventor 杨健戴成熊彬牛张力陈德权郑力铮
Owner 北京数码视讯软件技术发展有限公司
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