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        A study of covert communications in space platforms hosting government payloads

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        Author
        Nguyen, Thuy D.
        Date
        2015-02
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        Abstract
        In recent years, unmanned space vehicles have increasingly become targets of cyber-attacks. Exacerbating the problem is the desire to reduce cost and accelerate access to space by hosting government-supplied payloads on commercial space platforms. These commercially hosted payloads require stringent confidentiality protection and encryption alone is not sufficient to protect against illegal information leakage on a spacecraft with multilevel security (cross-domain) capabilities. Covert channels may still exist and be exploited by colluding entities to communicate secretly via shared resources. This report describes a preliminary study of potential covert channels in communications protocols used in satellites—specifically MIL-STD-1553B and SpaceWire.
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        Approved for public release; distribution in unlimited.
         
         
        Approved for public release; distribution is unlimited
         
        URI
        http://hdl.handle.net/10945/44708
        NPS Report Number
        NPS-CAG-15-002
        Collections
        • All Technical Reports Collection
        • Cyber Academic Group (NPS-CAG)
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