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2010
ACM

Toward practical authorization-dependent user obligation systems

11 years 8 months ago
Toward practical authorization-dependent user obligation systems
Many authorization system models include some notion of obligation. Little attention has been given to user obligations that depend on and affect authorizations. However, to be usable, the system must ensure users have the authorizations they need when their obligations must be performed. Prior work in this area introduced accountability properties that ensure failure to fulfill obligations is not due to lack of required authorizations. That work presented inconclusive and purely theoretical results concerning the feasibility of maintaining accountability in practice. The results of the current paper include algorithms and performance analysis that support the thesis that maintaining accountability in a reference monitor is reasonable in many applications. Categories and Subject Descriptors K.6.5 [Management of Computing and Information Systems]: Security and Protection General Terms Security, Theory Keywords Obligations, RBAC, Policy, Authorization Systems, Accountability
Murillo Pontual, Omar Chowdhury, William H. Winsbo
Added 18 May 2010
Updated 18 May 2010
Type Conference
Year 2010
Where CCS
Authors Murillo Pontual, Omar Chowdhury, William H. Winsborough, Ting Yu, Keith Irwin
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