Visible to the public Toward a framework for assessing the cyber-worthiness of complex mission critical systems

TitleToward a framework for assessing the cyber-worthiness of complex mission critical systems
Publication TypeConference Paper
Year of Publication2019
AuthorsFowler, Stuart, Sitnikova, Elena
Conference Name2019 Military Communications and Information Systems Conference (MilCIS)
Date Publishednov
KeywordsAccreditation, assurance, certification, complex military systems, complex mission critical systems, complex systems, computer security, CPS Resilience, cyber, cyber physical systems, Cyber-physical systems, cyber-worthiness, Embedded systems, high level threat actors, highly contested cyber environment, initial framework, Large-scale systems, military computing, military systems, pubcrawl, resilience, Resiliency, risk management, security, security of data, strong level, SysML, system safety engineering, threat actor, threat modelling, threat models
AbstractComplex military systems are typically cyber-physical systems which are the targets of high level threat actors, and must be able to operate within a highly contested cyber environment. There is an emerging need to provide a strong level of assurance against these threat actors, but the process by which this assurance can be tested and evaluated is not so clear. This paper outlines an initial framework developed through research for evaluating the cyber-worthiness of complex mission critical systems using threat models developed in SysML. The framework provides a visual model of the process by which a threat actor could attack the system. It builds on existing concepts from system safety engineering and expands on how to present the risks and mitigations in an understandable manner.
Citation Keyfowler_toward_2019