Title :
Protection relay systems employing unconditionally secure authentication codes
Author :
Matsumoto, T. ; Kobayashi, T. ; Katayama, S. ; Fukushima, Kazuto ; Sekiguchi, Katsuhiko
Author_Institution :
Yokohama Nat. Univ., Yokohama, Japan
Abstract :
The purpose of this study is to produce practical cyber security for protection relay systems using communication channels, such as pilot protection schemes or wide area protection systems. This paper describes a concept and method of effectively applying unconditionally secure authentication codes (A-codes) to such protection relay systems. From the requirements of real-time communication and long-term maintenance of protection relays, we propose a novel scheme based on A-codes having short authenticators (authentication tags) and a feasible number of keys. The efficiency of the scheme is shown by several examples of pilot protection systems and wide area protection systems. The performance and the key management of the proposed algorithm are also discussed.
Keywords :
cryptography; power system security; relay protection; authentication codes; authentication tags; communication channels; cryptography; cyber security; pilot protection schemes; power system communication; protection relay systems; wide area protection systems; Authentication; Communication channels; Communication system security; Computer security; Cryptography; Power system control; Power system protection; Power system relaying; Power system security; Protective relaying; Authentication; Authentication codes; Cryptography; Current differential relay; Pilot protection schemes; Power system communication; Unconditional Security; Wide area monitoring and control systems;
Conference_Titel :
PowerTech, 2009 IEEE Bucharest
Conference_Location :
Bucharest
Print_ISBN :
978-1-4244-2234-0
Electronic_ISBN :
978-1-4244-2235-7
DOI :
10.1109/PTC.2009.5281906
