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Integrating Security Consideration Into a Safety Case Construction

Authors:
Elena Troubitsyna

Keywords: safety case; systems-theoretical approach; controlling software; security; integrated analysis

Abstract:
Wide-spread reliance on networking in modern safety-critical control systems makes security increasingly interwoven with safety. Hence, we need novel methodologies integrating security consideration into the process of system development and safety case construction. Safety case is a structured argument justifying system safety. In this paper, we propose an approach that relies on the systems-theoretic analysis to construct security-aware safety cases. We define a number of generic patterns facilitating definition of security-aware safety cases. Our approach allows the developers to analyse the mutual interdependencies between safety and security in the design of networked control systems. It provides the engineers with a systematic top-down method for deriving constraints that should be imposed on the system and software behavior to guarantee safety in the presence of accidental and malicious faults.

Pages: 1 to 6

Copyright: Copyright (c) IARIA, 2016

Publication date: July 24, 2016

Published in: conference

ISSN: 2308-4324

ISBN: 978-1-61208-492-3

Location: Nice, France

Dates: from July 24, 2016 to July 28, 2016