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- Title
Security of Cyber-Physical Systems A Survey and Generalized Algorithm for Intrusion Detection and Determining Security Robustness of Cyber Physical Systems using Logical Truth Tables.
- Authors
Northcutt, Curtis G.
- 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.
- Subjects
COMPUTER algorithms; ROBUST control; INTRUSION detection systems (Computer security); PROLIFERATION Security Initiative; EMBEDDED computer systems; DIGITAL technology
- Publication
Vanderbilt Undergraduate Research Journal, 2013, Vol 9, p1
- ISSN
1555-788X
- Publication type
Article
- DOI
10.15695/vurj.v9i0.3765