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18th International Conference on Advanced Information Networking and Applications (AINA'04) Volume 1
Role Locks to Prevent Illegal Information Flow among Objects
Fukuoka, Japan
March 29-March 31
ISBN: 0-7695-2051-0
Ryung Chon, Tokyo Denki University, Japan
Tomoya Enokido, Tokyo Denki University, Japan
Vlad Wietrzsk, University of Western Sydney, Australia
Makoto Takizawa, Tokyo Denki University, Japan
This paper discusses a novel locking protocol to prevent illegal information flow among objects in a role-based access control model. In this paper, we newly define a conflicting relation "a role R1 conflicts with another role R2" to show that illegal information flow may occur if a transaction with R1 is performed before another transaction with R2. Here, we newly introduce a role lock on an object to abort a transaction with R1 if another transaction with R2 had been already performed on the object. Role locks are not released even if transactions issuing the role locks commit. A role lock on an object can be released if information brought into the object got obsolete. We discuss how to release obsolete role locks.
Citation:
Ryung Chon, Tomoya Enokido, Vlad Wietrzsk, Makoto Takizawa, "Role Locks to Prevent Illegal Information Flow among Objects," aina, vol. 1, pp.196, 18th International Conference on Advanced Information Networking and Applications (AINA'04) Volume 1, 2004
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