Security Information Architecture for Automation and Control Networks

Eduardo FeitosaLuis OliveiraBruno LinsAdemir JuniorRodrigo MeloDjamel SadokUbiratan Carmo

Ongoing automation and the open access implementation of critical systems are increasing security vulnerability in automation and control networks employed in the electric power sector. This work is of the view that the integration between policy-based management and access control mechanisms is necessary to take us closer to a more effective solution for the combat against security threats. This paper introduces a modular architecture based on the XACML framework and applies this to automation and control networks used in the electric power industry. This security architecture is described and its components are individually analyzed and tested in a real power production environment. This paper also describes relevant encountered difficulties, provides results and new insights into access control when applied to industrial critical network infrastructures.

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