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Method, device and system for field grant transfer

A technology for licenses and transfer requests, used in computer security devices, instruments, digital data authentication, etc.

Active Publication Date: 2011-04-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The present invention provides a method, device and system for domain license transfer to solve the problem that the prior art cannot prevent the illegal proliferation of non-consumable domain licenses

Method used

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  • Method, device and system for field grant transfer
  • Method, device and system for field grant transfer
  • Method, device and system for field grant transfer

Examples

Experimental program
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Embodiment Construction

[0063] In order to prevent the illegal proliferation of non-consumable domain licenses and improve the security performance of the DRM system, the present invention provides a domain device, see figure 1 As shown, it includes: a ring-connected communication module, a license transfer module and a revocation module, wherein the communication module and the license transfer module also communicate with the outside; further, the domain device also includes a sequentially connected license division module, license conversion module module and a security module, the security module is also connected to the communication module, and the license conversion module is also connected to the license transfer module; the DRM client composed of the above modules is also connected to the domain module.

[0064] The security module is used to perform identity authentication and message signature when interacting with external devices, and the identity authentication can be performed by ...

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Abstract

The invention discloses a method, an apparatus and a system for shifting domain permission so as to solve the problem that the prior art can not prevent illegal diffusion of non-consumption type domain permission, wherein the domain permission is the non-consumption type domain permission. The inventive method includes: (A) indicating all the devices in the domain to cancel the corresponding domain permission by a domain manager according to the domain permission to be shifted; (B) shifting the domain permission; (C) cancelling the local corresponding domain permission when the domain manager acquires that the domain permission shift is successful. By the embodiment of the invention, after the domain permission shift is finished, the corresponding domain permission in the devices in the domain and the domain manager is cancelled, thus the illegal diffusion of the non-consumption type domain permission can be prevented so as to improve the safety performance of a Digital Rights Management (DMA) system.

Description

technical field [0001] The invention relates to the field of digital rights management (DRM), in particular to a method, device and system for realizing non-consumable domain license transfer. Background technique [0002] Digital Rights Management (DRM) mainly controls the use of digital content through rights restriction and content protection schemes, and protects the legitimate rights and interests of content owners. After the digital content issuer (Content Issuer, CI) encrypts the digital content, the user downloads the encrypted digital content data package to the terminal device; the authorized issuer (Rights Issuer, RI) is responsible for distributing the license corresponding to the digital content , including the content decryption key and corresponding permissions. The purchased digital content can only be used normally by the terminal device only if it has both the content data package (which contains the information necessary for decrypting the digital content...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/00G06F21/30
Inventor 李益民冯雯洁党沛石国欣周皓隽张仁宙周晨
Owner HUAWEI TECH CO LTD
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