OPA : Onion policy administration model - Another approach to manage rights in DRM

被引:0
|
作者
Sans, Thierry [1 ]
Cuppens, Frederic [1 ]
Cuppens-Boulahia, Nora [1 ]
机构
[1] GET, ENST Bretagne, 2 Rue de la Chataigneraie, F-35576 Cesson Sevigne, France
关键词
D O I
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中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
Digital Rights Management frameworks (DRM) aim at protecting and controlling information contents widely distributed on client devices. Using a license, the content owner specifies which rights can be rendered to end-users. Basically, only the content owner must be able to define this license, but some DRM models go further. In super-distribution scenario, the content owner does not directly manage enduser's rights but rather delegate this task to a third-party called a distributor. Nevertheless, this distribution cannot be done without any control. In existing approaches, the content owner restricts the license issued by the distributors. In this paper, we provide a new approach, called the Onion Policy Administration approach (OPA). Rather than restricting licenses issued by the different distributors, OPA aims at controlling which rights are finally rendered to end-users. The main idea of OPA is to have a traceability of the content distribution. The content must keep track of all third-parties it crossed in the distribution chain. In this case, everyone can distribute the content and define a new license without any restriction. In these licenses, the content owner and distributors specify end-user's rights. Using the content traceability, the DRM controller can gather all licenses involved in the distribution chain and evaluate them. In order to be rendered, a right must be allowed by both the content owner and all distributors involved in the distribution chain.
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页码:349 / +
页数:2
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