Advanced Key Management Architecture Based on Tree Structure for Secure SCADA Communications


The KIPS Transactions:PartC, Vol. 16, No. 1, pp. 37-50, Feb. 2009
10.3745/KIPSTC.2009.16.1.37,   PDF Download:

Abstract

The SCADA(Supervisory Control And Data Acquisition) system is a control system for infrastructure of nation. In the past, the SCADA system was designed without security function because of its closed operating environment. However, the security of the SCADA system has become an issue with connection to the open network caused by improved technology. In this paper we review the constraints and security requirements for SCADA system and propose advanced key management architecture for secure SCADA communications. The contributions of the present work are that our scheme support both message broadcasting and secure communications, while the existing key management schemes for SCADA system don't support message broadcasting. Moreover, by evenly spreading much of the total amount of computation across high power nodes (MTU or SUB-MTU), our protocol avoids any potential performance bottleneck of the system while keeping the burden on low power (RTU) nodes at minimal.


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Cite this article
[IEEE Style]
D. H. Choi, S. J. Lee, H. J. Jeong, D. J. Kang, H. M. Kim, K. S. Kim, D. H. Won, S. J. Kim, "Advanced Key Management Architecture Based on Tree Structure for Secure SCADA Communications," The KIPS Transactions:PartC, vol. 16, no. 1, pp. 37-50, 2009. DOI: 10.3745/KIPSTC.2009.16.1.37.

[ACM Style]
Dong Hyun Choi, Sung Jin Lee, Han Jae Jeong, Dong Joo Kang, Hak Man Kim, Kyung Sin Kim, Dong Ho Won, and Seung Joo Kim. 2009. Advanced Key Management Architecture Based on Tree Structure for Secure SCADA Communications. The KIPS Transactions:PartC, 16, 1, (2009), 37-50. DOI: 10.3745/KIPSTC.2009.16.1.37.