Role-Based delegation with negative authorization
Pages 307 - 318
Abstract
Role-based delegation model (RBDM) based on role-based access control (RBAC) has proven to be a flexible and useful access control model for information sharing on distributed collaborative environment. Authorization is an important functionality for RBDM in distributed environment where a conflicting problem may arise when one user grants permission of a role to a delegated user and another user grants the negative permission to the delegated user.
This paper aims to analyse role-based group delegation features that has not studied before, and to provide an approach for the conflicting problem by adopting negative authorization. We present granting and revocation delegating models first, and then discuss user delegation authorization and the impact of negative authorization on role hierarchies.
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Published In
January 2006
1217 pages
ISBN:3540311424
Publisher
Springer-Verlag
Berlin, Heidelberg
Publication History
Published: 16 January 2006
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