This paper discusses the architectural implications of attempting to achieve space mission resilience to cyber-attack. Resilience-related techniques represent a complex trade-space that must be considered from mission performance, cost, assurance, and implementation complexity perspectives. The paper considers a number of resilience techniques in that context. The discussion also includes how the techniques can be mapped to threat, coordinated with mission operations, and used together synergistically. The paper also briefly discusses how experiments could be designed to validate technique efficacy and the realistic limits of applying the techniques.
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