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High-Speed Intrusion Detection in Support of Critical Infrastructure Protection

Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4347)

Abstract

Telecommunication network plays a fundamental role in the management of critical infrastructures since it is largely used to transmit control information among the different elements composing the architecture of a critical system. The health of a networked system strictly depends on the security mechanisms that are implemented in order to assure the correct operation of the communication network. For this reason, the adoption of an effective network security strategy is seen as an important and necessary task of a global methodology for critical infrastructure protection. In this paper we present 2 contributions. First, we present a distributed architecture that aims to secure the communication network upon which the critical infrastructure relies. This architecture is composed of an intrusion detection system (IDS) which is built on top of a customizable flow monitor. Second, we propose an innovative method to extrapolate real-time information about user behavior from network traffic. This method consists in monitoring traffic flows at different levels of granularity in order to discover ongoing attacks.

Keywords

critical infrastructure protection (CIP) critical information infrastructure protection (CIIP) intrusion detection flow monitoring security management SCADA 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  1. 1.Lab. ITeM – Consorzio Interuniversitario Nazionale per l’InformaticaCINI 
  2. 2.Dipartimento di Informatica e SistemisticaUniversity of Napoli Federico II 
  3. 3.Complex Systems & Security LabUniversity CAMPUS Bio-Medico of Roma 

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