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11th October 2021
Our colleague Manuel A. Serrano together with Julio Moreno, David G. Rosado, Luis E. Sánchez and Eduardo Fernández-Medina of the GSyA group have published the article Security Reference Architecture for Cyber-Physical Systems (CPS) in the JUCS - Journal of Universal Computer Science, DOI: 10.3897/jucs.68539.
Cyber-physical systems (CPS) are the next generation of engineered systems in which computing, communication and control technologies are being tightly integrated. They play an increasingly important role in critical infrastructures, governments and everyday life. Security is crucial in CPS, but unfortunately it was not initially conceived as a secure environment, and if these security issues are to be incorporated, they must be taken into account from the very beginning of the system design. One way to solve this problem is to have a global perspective, which can be achieved by employing a Reference Architecture (RA), as it is a high-level abstraction of a system that could be useful in the implementation of complex systems. It is widely accepted that adding elements to address many security factors (integrity, confidentiality, availability, etc.) and facilitating the definition of the security requirements of a Security Reference Architecture (SRA) is a good starting point when trying to solve such cybersecurity problems and to protect the system from the beginning of the development. An SRA allows defining the key elements of a specific environment, thus enabling a better understanding of the inherent elements of the environments, while promoting the integration of security aspects and mechanisms. This document therefore presents the definition of an SRA for CPS using UML modelling in an attempt to facilitate secure CPS implementations.