Security of Cyber-Physical Systems: A Generalized Algorithm for Intrusion Detection and Determining Security Robustness of Cyber Physical Systems using Logical Truth Tables

  • Curtis G. Northcutt Vanderbilt University

Abstract

The recent proliferation of embedded cyber components in modern physical systems [1] has generated a variety of new security risks which threaten not only cyberspace, but our physical environment as well. Whereas earlier security threats resided primarily in cyberspace, the increasing marriage of digital technology with mechanical systems in cyber-physical systems (CPS), suggests the need for more advanced generalized CPS security measures. To address this problem, in this paper we consider the first step toward an improved security model: detecting the security attack. Using logical truth tables, we have developed a generalized algorithm for intrusion detection in CPS for systems which can be defined over discrete set of valued states. Additionally, a robustness algorithm is given which determines the level of security of a discrete-valued CPS against varying combinations of multiple signal alterations. These algorithms, when coupled with encryption keys which disallow multiple signal alteration, provide for a generalized security methodology for both cyber-security and cyber-physical systems.

Author Biography

Curtis G. Northcutt, Vanderbilt University
Computer Science Department
Published
08-01-2013
How to Cite
NORTHCUTT, Curtis G.. Security of Cyber-Physical Systems: A Generalized Algorithm for Intrusion Detection and Determining Security Robustness of Cyber Physical Systems using Logical Truth Tables. Vanderbilt Undergraduate Research Journal, [S.l.], v. 9, aug. 2013. ISSN 1555-788X. Available at: <http://vurj.vanderbilt.edu/index.php/vurj/article/view/3765>. Date accessed: 22 oct. 2017. doi: https://doi.org/10.15695/vurj.v9i0.3765.
Section
Engineering and Natural Sciences

Keywords

Cyber Physical Security Systems, CPS, AI, cybersecurity, robustness, algorithm