A Modified Layer of Protection Analysis for Cyber-Physical Systems Security
المؤلف | Tantawy, Ashraf |
المؤلف | Erradi, Abdelkarim |
المؤلف | Abdelwahed, Sherif |
تاريخ الإتاحة | 2023-04-10T09:10:06Z |
تاريخ النشر | 2019 |
اسم المنشور | 2019 4th International Conference on System Reliability and Safety, ICSRS 2019 |
المصدر | Scopus |
الملخص | Layer of Protection Analysis (LOPA) is the most commonly used approach for quantitative safety risk assessment in the process control industry to protect a Cyber- Physical System (CPS) from accidental hazards-causing failures. The LOPA approach does not take into account failures due to intentional security attacks, hence yielding partially-protected systems. With security breaches on the rise for critical infrastructure, the LOPA methodology needs to be revisited to verify its underlying assumptions and synchronize safety and security lifecycles. In this paper, we study the LOPA methodology and identify the key mathematical assumptions that are violated in the presence of security attacks. We present a mathematical formulation for a modified LOPA to incorporate the probability of a security attack on a CPS and apply it to a testbed case study. 2019 IEEE. |
راعي المشروع | This research was made possible by NPRP 9-005-1-002 grant from the Qatar National Research Fund (a member of The Qatar Foundation). The statements made herein are solely the responsibility of the authors. |
اللغة | en |
الناشر | Institute of Electrical and Electronics Engineers Inc. |
الموضوع | CPS Cyber Physical System HAZOP IEC 61511 LOPA Risk Assessment Safety SCADA Security SIL SIS |
النوع | Conference Paper |
الصفحات | 94-101 |
الملفات في هذه التسجيلة
الملفات | الحجم | الصيغة | العرض |
---|---|---|---|
لا توجد ملفات لها صلة بهذه التسجيلة. |
هذه التسجيلة تظهر في المجموعات التالية
-
علوم وهندسة الحاسب [2288 items ]