%0 Conference Proceedings
%T Deploy, Adjust and Readjust: Supporting Dynamic Reconfiguration of Policy Enforcement
%+ Università degli Studi di Trento =  University of Trento (UNITN)
%+ Fondazione Bruno Kessler [Trento, Italy] (FBK)
%+ Catholic University of Leuven = Katholieke Universiteit Leuven (KU Leuven)
%A Gheorghe, Gabriela
%A Crispo, Bruno
%A Carbone, Roberto
%A Desmet, Lieven
%A Joosen, Wouter
%Z Part 7: Security and Interoperability
%< avec comité de lecture
%( Lecture Notes in Computer Science
%B 12th International Middleware Conference (MIDDLEWARE)
%C Lisbon, Portugal
%Y Fabio Kon
%Y Anne-Marie Kermarrec
%I Springer
%3 Middleware 2011
%V LNCS-7049
%P 350-369
%8 2011-12-12
%D 2011
%R 10.1007/978-3-642-25821-3_18
%K configuration
%K policy
%K enforcement
%K middleware
%K cache
%Z Computer Science [cs]
%Z Computer Science [cs]/Networking and Internet Architecture [cs.NI]Conference papers
%X For large distributed applications, security and performance are two requirements often difficult to satisfy together. Addressing them separately leads more often to fast systems with security holes, rather than secure systems with poor performance. For instance, caching data needed for security decisions can lead to security violations when the data changes faster than the cache can refresh it. Retrieving such fresh data without caching it impacts performance. In this paper, we analyze a subproblem: how to dynamically configure a distributed authorization system when both security and performance requirements change. We examine data caching, retrieval and correlation, and propose a runtime management tool that, with external input, finds and enacts the customizations that satisfy both security and performance needs. Preliminary results show it takes around two seconds to find customization solutions in a setting with over one thousand authorization components.
%G English
%Z TC 6
%Z WG 6.1
%2 https://inria.hal.science/hal-01597755/document
%2 https://inria.hal.science/hal-01597755/file/978-3-642-25821-3_18_Chapter.pdf
%L hal-01597755
%U https://inria.hal.science/hal-01597755
%~ IFIP-LNCS
%~ IFIP
%~ IFIP-TC
%~ IFIP-WG
%~ IFIP-TC6
%~ IFIP-WG6-1
%~ IFIP-MIDDLEWARE
%~ IFIP-LNCS-7049