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      A Model-based Approach to Interdependency between Safety and Security in ICS

      3rd International Symposium for ICS & SCADA Cyber Security Research 2015 (ICS-CSR 2015) (ICS-CSR)
      Industrial Control System & SCADA Cyber Security Research (ICS-CSR)
      17 - 18 September 2015
      safety, security, answer set programming, interdependency between safety and security


            Wide use of modern ICT technologies brings not only communication efficiency, but also security vulnerabilities into industrial control systems. Traditional physically-isolated systems are now required to take cyber security into consideration, which might also lead to system failures. However, integrating security and safety analysis has always been a challenging issue and the various interdependencies between them make it even more difficult, because they might mutually enhance, or undermine. The paper proposes an integrating framework to (i) formalise the desired and undesired properties to be safe(unsafe) or secure(insecure), including the dependencies between them, (ii) evaluate if a query state reaches a safe(unsafe) or secure(insecure) state, and further quantify how safe or secure the state is. In this way,we can accurately capture the benign and harmful relations between safety and security, particularly detecting and measuring conflicting impacts on them. Finally, this framework is implemented by answer set programming to enable automatic evaluation, which is demonstrated by a case study on pipeline transportation.


            Author and article information

            September 2015
            September 2015
            : 31-41
            [0001]Institute for Security Science and Technology

            Imperial College London

            London, UK
            © Li et al. Published by BCS Learning & Development Ltd. Proceedings of the 3 rd International Symposium for ICS & SCADA Cyber Security Research 2015

            This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

            3rd International Symposium for ICS & SCADA Cyber Security Research 2015 (ICS-CSR 2015)
            17 - 18 September 2015
            Electronic Workshops in Computing (eWiC)
            Industrial Control System & SCADA Cyber Security Research (ICS-CSR)
            Product Information: 1477-9358BCS Learning & Development
            Self URI (article page): https://www.scienceopen.com/hosted-document?doi=10.14236/ewic/ICS2015.4
            Self URI (journal page): https://ewic.bcs.org/
            Electronic Workshops in Computing

            Applied computer science,Computer science,Security & Cryptology,Graphics & Multimedia design,General computer science,Human-computer-interaction
            safety,security,answer set programming,interdependency between safety and security


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