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YASIR: A Low-Latency, High-Integrity Security Retrofit for Legacy SCADA Systems

Tsang, P., Smith, S. W.
Citation:

IFIP TC 11 23rd International Information Security Conference (SEC 2008), International Federation for Information Processing (IFIP) Volume 278, 2008, pp. 445-449.

Visit Publisher Online Entry:
Abstract:

We construct a bump-in-the-wire (BITW) solution that retrofits security into time-critical communications over bandwidth-limited serial links between devices in legacy Supervisory Control And Data Acquisition (SCADA) systems, on which the proper operations of critical infrastructures such as the electric power grid rely. Previous BITW solutions do not provide the necessary security within timing constraints; the previous solution that does is not BITW. At a hardware cost comparable to existing solutions, our BITW solution provides sufficient security, and yet incurs minimal end-to-end communication latency.

Publication Status:
Published
Publication Type:
Proceedings
Publication Date:
09/07/2008
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