Abstract. Among the challenges of managing NASA’s information systems is the management (that is, creation, coordination, verification, validation, and enforcement) of many di...
Michael Smith, Andrew Schain, Kendall Clark, Arlen...
We study the specification of access control policy in large-scale distributed systems. Our work on real-world policies has shown that standard policy idioms such as role hierarc...
Conversation policies codify the allowable exchanges of speech acts among agents as they execute specific types of tasks. Both the set of agents in a community, and the nature of...
Access control is one of the most fundamental and widely used security mechanisms. Access control mechanisms control which principals such as users or processes have access to whi...
Vincent C. Hu, Evan Martin, JeeHyun Hwang, Tao Xie
Abstract--A widespread design approach in distributed applications based on the service-oriented paradigm, such as web-services, consists of clearly separating the enforcement of a...