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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
At a hardware cost comparable to existing solutions, our BITW solution provides sufficient security, and yet incurs minimal end-to-end communication latency.
This technical report is the extended version of the paper to appear in
IFIP SEC 2008 under the same title. An earlier version of the paper appeared
as Dartmouth Computer Science Technical Report TR2007-603.
Bibliographic citation for this report: [plain text] [BIB] [BibTeX] [Refer]
Or copy and paste:
Patrick P. Tsang and Sean W. Smith, "YASIR: A Low-Latency, High-Integrity Security Retrofit for Legacy SCADA Systems (Extended Version)." Dartmouth Computer Science Technical Report TR2008-617, April 2008.
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