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ACNS
2004
Springer

Low-Latency Cryptographic Protection for SCADA Communications

11 years 7 months ago
Low-Latency Cryptographic Protection for SCADA Communications
Abstract. Supervisory Control And Data Acquisition (SCADA) systems are real-time process control systems that are widely deployed throughout critical infrastructure sectors including power, gas, oil, and water. However, SCADA networks generally have little protection from the rising danger of cyber attack. A retrofit solution to protect existing SCADA communications links must assure the integrity of commands and responses that are typically transmitted over serial lines at speeds from 300 to 19200 bits per second, while introducing minimal additional latency into the real-time SCADA traffic. This paper describes the key aspects of a cryptographic protocol for retrofit SCADA link protection that leverages the Cyclic Redundancy Checks (CRC) transmitted by existing SCADA equipment to achieve strong integrity while introducing minimal latency. The protocol is based on a new position embedding encryption mode which, for a b-bit block cipher, ensures that any unauthentic message an advers...
Andrew K. Wright, John A. Kinast, Joe McCarty
Added 30 Jun 2010
Updated 30 Jun 2010
Type Conference
Year 2004
Where ACNS
Authors Andrew K. Wright, John A. Kinast, Joe McCarty
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