Security of industrial sensor network-based remote substations in the context of the Internet of Things

Authors:
Cristina Alcaraz;Rodrigo Roman;Pablo Najera;Javier Lopez
Affiliations:
Computer Science Department, University of Malaga, Spain;Cryptography and Security Department, Institute for Infocomm Research (I2R), Singapore;Computer Science Department, University of Malaga, Spain;Computer Science Department, University of Malaga, Spain
Venue:
Ad Hoc Networks
Year:
2013

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Abstract

The main objective of remote substations is to provide the central system with sensitive information from critical infrastructures, such as generation, distribution or transmission power systems. Wireless sensor networks have been recently applied in this particular context due to their attractive services and inherent benefits, such as simplicity, reliability and cost savings. However, as the number of control and data acquisition systems that use the Internet infrastructure to connect to substations increases, it is necessary to consider what connectivity model the sensor infrastructure should follow: either completely isolated from the Internet or integrated with it as part of the Internet of Things paradigm. This paper therefore addresses this question by providing a thorough analysis of both security requirements and infrastructural requirements corresponding to all those TCP/IP integration strategies that can be applicable to networks with constrained computational resources.