A hybrid digital copyright protection method and system
A technology for digital copyright protection and digital content, applied in transmission systems, program/content distribution protection, electrical components, etc., can solve problems that hinder users' legal and free choice, reduce computational complexity, improve interoperability, and enhance usability Effect
Active Publication Date: 2016-06-01
中文在线(天津)文化发展有限公司
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Problems solved by technology
In this regard, the technical difficulty of the current DRM system is how to define user rights, to overcome the current right description language that only allows users to use the content in a single way permitted by the license, hindering the user's legal and free choice
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[0018] In the hybrid digital copyright protection method of the present invention, content management center, license management center and user terminal equipment are involved. The content management center provides digital content, which is partially encrypted and partially loaded with watermark, and stored in the content database. The License Management Center provides licenses for protected digital content. The user terminal equipment downloads the digital content to the content management center, and requests a license from the license management center, and then reads the digital content. The digital copyright protection method of hybrid mode of the present invention comprises following process:
[0019] (1) Content pack generation phase
[0020] The content management center (content provider) encrypts a selected part of the original digital content, adds a watermark to the remaining part of the original digital content, and then stores the encrypted content and the c...
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The invention provides a digital copyright protection method of a hybrid mode. The method comprises the following steps of: splitting original digital content of a content management center into a first part and a second part; encrypting the first part to obtain an encrypted part by using a content encryption key and loading watermark to the second part to obtain a watermark part; requesting an intelligent device comprising a first user encryption key for generating a signature and a second user encryption key for verifying the signature from the content management center by user terminal equipment; downloading a content package from the content management center and transmitting a request to a license management center based on the first user encryption key and the second user encryption key; acquiring the content encryption key from a license; and decrypting the encrypted part to read or play. According to the method, the calculation time for all encryption and decryption is reduced, and the processing efficiency is increased through partial encryption; and by loading the watermark, the digital content part can be previewed, and the authority tracking of the entire life cycle of the digital content is realized. The invention also provides a digital copyright protection system of the hybrid mode.
Description
technical field [0001] The present invention relates to the field of digital copyright protection, and more specifically, to a method and system for digital copyright protection using a hybrid method. Background technique [0002] The emergence of computer networks has made the world more and more closely connected, and it also poses a huge challenge to the security protection of digital content. If the copyright protection of digital products cannot be effectively resolved, it will inevitably affect the development of the entire digital publishing industry. Piracy technology is becoming more and more flexible, which requires an effective solution to protect. The optimal solution for digital rights management is low cost, easy to use, technically feasible, and legally compliant. The present invention proposes a DRM (Digital Rights Management) rights tracking model from the perspective of technology and economy. [0003] A general DRM system can be divided into three parts...
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IPC IPC(8): G06F21/16H04L29/06
Inventor 刘瑞虹
Owner 中文在线(天津)文化发展有限公司