Covert Channels - Here to Stay ?

نویسنده

  • Myong H. Kang
چکیده

We discuss the dificulties of satisfying high-assurance system requirements without sacrificing system capabilities. To alleviate this problem, we show how trade-offs can be made to reduce the threat of coved channels. We also clarify certain concepts in the theory of covert channels. Traditionally, a coved channel’s vulnerability was measured b y the capacity. We show why a capacity analysis alone is not sufficient to evaluate the vulnerability and introduce a new metric referred t o as the “small message criterion”.

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تاریخ انتشار 2004