%0 Conference Proceedings %T A Calculus for Modeling Floating Authorizations %+ University of Novi Sad %+ School for Advanced Studies Lucca (IMT) %A Pantović, Jovanka %A Prokić, Ivan %A Vieira, Hugo, Torres %< avec comité de lecture %( Lecture Notes in Computer Science %B 38th International Conference on Formal Techniques for Distributed Objects, Components, and Systems (FORTE) %C Madrid, Spain %Y Christel Baier %Y Luís Caires %I Springer International Publishing %3 Formal Techniques for Distributed Objects, Components, and Systems %V LNCS-10854 %P 101-120 %8 2018-06-18 %D 2018 %R 10.1007/978-3-319-92612-4_6 %Z Computer Science [cs] %Z Computer Science [cs]/Networking and Internet Architecture [cs.NI]Conference papers %X Controlling resource usage in distributed systems is a challenging task given the dynamics involved in access granting. Consider, e.g., the setting of floating licenses where access can be granted if the request originates in a licensed domain and if the number of active users is within the license limits. Access granting in such scenarios is given in terms of floating authorizations, addressed in this paper as first class entities of a process calculus model, encompassing the notions of domain, accounting and delegation. We present the operational semantics of the model in two equivalent alternative ways, each informing on the specific nature of authorizations. We also introduce a typing discipline to single out systems that never get stuck due to lacking authorizations, addressing configurations where authorization assignment is not statically prescribed in the system specification. %G English %Z TC 6 %Z WG 6.1 %2 https://inria.hal.science/hal-01824819/document %2 https://inria.hal.science/hal-01824819/file/469043_1_En_6_Chapter.pdf %L hal-01824819 %U https://inria.hal.science/hal-01824819 %~ IFIP-LNCS %~ IFIP %~ IFIP-TC %~ IFIP-WG %~ IFIP-TC6 %~ IFIP-WG6-1 %~ IFIP-FORTE %~ IFIP-DISCOTEC %~ IFIP-LNCS-10854