Hybrid key management architecture for robust SCADA systems

Donghyun Choi, Hanjae Jeong, Dongho Won, Seungjoo Kim

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


Recently, as a demand for connecting Supervisory Control and Data Acquisition (SCADA) systems to open networks increases, the study of SCADA system security becomes an issue. Many researchers have proposed key management schemes for SCADA systems. However, previous studies lack the proper considerations for availability. In this paper, we build up cryptographic security requirements for robust SCADA systems. In addition, we propose a hybrid key management architecture for robust SCADA systems which supports replace protocol for availability and reduces the number of keys to be stored in a master terminal unit.

Original languageEnglish
Pages (from-to)281-298
Number of pages18
JournalJournal of Information Science and Engineering
Issue number2
Publication statusPublished - 2013 Mar


  • Cryptography
  • Key management
  • Power system security
  • Protocol
  • SCADA systems

ASJC Scopus subject areas

  • Software
  • Human-Computer Interaction
  • Hardware and Architecture
  • Library and Information Sciences
  • Computational Theory and Mathematics


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