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  1. Proceedings of the 2007 ACM workshop on Digital Rights Management (DRM '07)
  2. Persistent access control: a formal model for drm
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Persistent access control: a formal model for drm

Content Provider ACM Digital Library
Author Arnab, Alapan Hutchison, Andrew
Abstract Digital rights management (DRM) can be considered to be a mechanism to enforce access control over a resource without considering its location. There are currently no formal models for DRM, although there has been some work in analysing and formalising the interpretation of access control rules in DRM systems. A formal model for DRM is essential to provide specific access control semantics that are necessary for creating interoperable, unambiguous implementations. In this paper, we discuss how DRM differs as an access control model to the three well known traditional access control models - DAC, MAC and RBAC, and using these existing approaches motivate a set of requirements for a formal model for DRM. Thereafter, we present a formal description of LiREL, a rights expression language that is able to express access control policies and contractual agreement in a single use license. Our motivation with this approach is to identify the different components in a license contract and define how these components interact within themselves and with other components of the license. A formal notation allows for an uniform and unambiguous interpretation and implementation of the access control policies.
Starting Page 41
Ending Page 53
Page Count 13
File Format PDF
ISBN 9781595938848
DOI 10.1145/1314276.1314286
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2007-10-29
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Access control Rights expression languages Rel
Content Type Text
Resource Type Article
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