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Performance, Computing, and Communications Conference, 2002. 21st IEEE International (2002)
Phoenix, AZ, USA
Apr. 3, 2002 to Apr. 5, 2002
ISBN: 0-7803-7371-5
pp: 179-186
S. Ngamsuriyaroj , Dept. of Comput. Sci. & Eng., Pennsylvania State Univ., University Park, PA, USA
ABSTRACT
This work addresses the problem of maintaining the consistency of the security policy in a distributed environment. We consider a system composed of the Security Server and multiple Object Managers running on different machines. The Security Server defines the security policy in a small database and Object Managers enforce the policy replicated on each machine. Thus, the system is modeled as a replicated database. However, unlike a typical replicated database where transient inconsistency is often allowed for better performance, due to the very nature of the security policy database, our goal of consistency is one-copy serializability (1SR). Hence, for security concerns, the requirement for achieving 1SR is unquestionable, while the requirement for good performance is also desirable. This paper investigates an invalidation-based consistency protocol within the scope of the Transactional Consistency Protocol (TCP). We show that the proposed consistency control protocol offers both 1SR consistency and good performance.
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CITATION
A.R. Hurson, T.F. Keefe, S. Ngamsuriyaroj, "Maintaining consistency of the security policy in distributed environment", Performance, Computing, and Communications Conference, 2002. 21st IEEE International, vol. 00, no. , pp. 179-186, 2002, doi:10.1109/IPCCC.2002.995149
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