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Sensors 2009, 9(11), 9380-9397; doi:10.3390/s91109380

Improving Security for SCADA Sensor Networks with Reputation Systems and Self-Organizing Maps

Department Ingeniería Electrónica, ETSI Telecomunicación, Universidad Politécnica de Madrid, Av. Complutense, 30, 28040 Madrid, Spain
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Received: 9 October 2009 / Revised: 30 October 2009 / Accepted: 4 November 2009 / Published: 20 November 2009
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Spain)
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Abstract

The reliable operation of modern infrastructures depends on computerized systems and Supervisory Control and Data Acquisition (SCADA) systems, which are also based on the data obtained from sensor networks. The inherent limitations of the sensor devices make them extremely vulnerable to cyberwarfare/cyberterrorism attacks. In this paper, we propose a reputation system enhanced with distributed agents, based on unsupervised learning algorithms (self-organizing maps), in order to achieve fault tolerance and enhanced resistance to previously unknown attacks. This approach has been extensively simulated and compared with previous proposals.
Keywords: SCADA control system; cyber security; critical infrastructure; reputation system; countermeasure; security framework SCADA control system; cyber security; critical infrastructure; reputation system; countermeasure; security framework
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Moya, J.M.; Araujo, Á.; Banković, Z.; De Goyeneche, J.-M.; Vallejo, J.C.; Malagón, P.; Villanueva, D.; Fraga, D.; Romero, E.; Blesa, J. Improving Security for SCADA Sensor Networks with Reputation Systems and Self-Organizing Maps. Sensors 2009, 9, 9380-9397.

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