Tr-OrBAC: Towards a Trust Framework for Collaborative Systems in Critical Information Infrastructures
Keywords:
Access Control, OrBAC, Trust Management, Collaborative System, Critical Information Infrastructure, Electrical Grid, Fuzzy Logic.Abstract
A collaborative system involves several organizations collaborating in order to ensure the continuity of their Critical Infrastructures. However, some malicious behaviors may occur, causing disturbances in the information systems. This may be fatal when it comes to Critical Information Infrastructures. In order to avoid such behaviors, building trust between collaborating organizations is necessary, especially, between their entities. Indeed, trust allows cooperating and sharing resources in a secure way. In this paper, we present our approach named Tr-OrBAC: An Organization Based Access Control that relies on trust between organizations, especially for Critical Information Infrastructures. Our aim is to allow each organization to take collaboration decisions by evaluating trust of participating entities using Fuzzy Logic. In order to illustrate the efficiency of Tr-OrBAC, we use the Electrical Grid as a case study.
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