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Auton. Adapt. Syst."],"published-print":{"date-parts":[[2014,1]]},"abstract":"<jats:p>\n            The article presents an access control model called\n            <jats:italic>Criticality Aware Access Control<\/jats:italic>\n            (CAAC) for criticality (emergency) management in smart infrastructures. Criticalities are consequences of events which take a system (in our case, a smart infrastructure) into an unstable state. They require the execution of specific\n            <jats:italic>response actions<\/jats:italic>\n            in order to bring them under control. The principal aim of CAAC is to grant the right set of access privileges (to facilitate response action execution), at the right time, to the right set of subjects, for the right duration, in order to control the criticalities within the system. In this regard, the CAAC model uses a stochastic model called the\n            <jats:italic>Action Generation Model<\/jats:italic>\n            to determine the required response actions for the combination of criticalities present within the system. It then facilitates response actions by\n            <jats:italic>adaptively<\/jats:italic>\n            altering the privileges to specific subjects, in a\n            <jats:italic>proactive<\/jats:italic>\n            manner, without the need for any explicit access requests. In this article, we formalize the CAAC model and validate it based on two\n            <jats:italic>design goals<\/jats:italic>\n            - proactivity and adaptiveness. Finally, we present a case study demonstrating CAAC\u2019s operation on an oil-rig platform in order to aid in the response to health- and fire-related criticalities.\n          <\/jats:p>","DOI":"10.1145\/2555614","type":"journal-article","created":{"date-parts":[[2014,2,4]],"date-time":"2014-02-04T14:16:21Z","timestamp":1391523381000},"page":"1-18","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":16,"title":["CAAC -- An Adaptive and Proactive Access Control Approach for Emergencies in Smart Infrastructures"],"prefix":"10.1145","volume":"8","author":[{"given":"Krishna K.","family":"Venkatasubramanian","sequence":"first","affiliation":[{"name":"Arizona State University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tridib","family":"Mukherjee","sequence":"additional","affiliation":[{"name":"Arizona State University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sandeep K. 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In Proceedings of the 3rd International Workshop on Policies for Distributed Systems and Networks. Springer-Verlag, 2--12 . Bettini, C., Jajodia, S., Wang, X., and Wijesekera, D. 2002. Obligation monitoring in policy management. In Proceedings of the 3rd International Workshop on Policies for Distributed Systems and Networks. Springer-Verlag, 2--12."},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.1145\/1179529.1179540"},{"key":"e_1_2_1_5_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa0706467"},{"key":"e_1_2_1_6_1","volume-title":"Proceedings of the 3rd International Symposium on Network Computing and Applications. IEEE, 253--260","author":"Corradi A.","unstructured":"Corradi , A. , Montanari , R. , and Tibaldi , D . 2004. Context-based access control management in ubiquitous environments . In Proceedings of the 3rd International Symposium on Network Computing and Applications. IEEE, 253--260 . Corradi, A., Montanari, R., and Tibaldi, D. 2004. 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