Architecting Information Security Services for Federated Satellite Systems

Abstract

This paper investigates the provision of information security services in Federated Satellite Systems. We initiate the discussion by describing possible threats that the system faces, as well as the specic security services that have to be provided in order to mitigate them. Next, we dene a set of ve primal security functions that a federated satellite system has to implement and propose the Interaction State Model, a functional model that characterizes the security state when two federates are interacting with each other. Dierences in these security states are then used to dene the Interaction State Machine, a transition state diagram that can be used to rapidly identify which security functionality has to be provided in order to securitize an unreliable interaction.