Open AccessAssessing the security of internet‐connected critical infrastructures
Author(s) -
Ghani Hamza,
Khelil Abdelmajid,
Suri Neeraj,
Csertán György,
Gönczy László,
Urbanics Gábor,
Clarke James
Publication year - 2014
Publication title -
security and communication networks
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.446
H-Index - 43
eISSN - 1939-0122
pISSN - 1939-0114
DOI - 10.1002/sec.399
Subject(s) - computer science , dependability , computer security , internet of things , perspective (graphical) , precondition , the internet , critical infrastructure protection , focus (optics) , critical infrastructure , risk analysis (engineering) , world wide web , business , physics , software engineering , artificial intelligence , optics , programming language
Because the Internet of Things (IoT) pervasively extends to all facets of life, the “things” are increasingly extending to include the interconnection of the Internet to critical infrastructures (CIs) such as telecommunication, power grid, transportation, e‐commerce systems, and others. The objective of this paper is twofold: (i) addressing IoT from a CI protection (CIP) and connectivity viewpoint, and (ii) highlighting the need for security quantification to improve the quality of protection (QoP) of CIs. Using a financial infrastructure as an example, a CIP and trust quantification perspective is built up. To this end, we are developing a novel security metrics‐based approach to assess and thereon enhance the CIP. We focus on the communication level of the CI where IoT is playing an increasingly important role with respect to sensing and communication across CI elements. Determining the security and dependability level of the communication over the CI constitutes a basic precondition for assessing the QoP of the whole CI, which is needed for any efforts to improve this QoP. Because metrics play a central role for such quantification, this paper develops their QoP use from an IoT perspective, and a reference implementation along with experimental results is presented. Copyright © 2012 John Wiley & Sons, Ltd.