• Title/Summary/Keyword: SCADA data

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Security Issues & Application in Korea SCADA

  • Kim, Hak-Man;Kang, Dong-Joo
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.21 no.9
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    • pp.95-100
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    • 2007
  • The importance of communication security is increased in the power industry. The representative communication network of power industry is the SCADA(Supervisory Control and Data Acquisition) systems. The SCADA system has been used for remote measurement and control in the power industry. Recently, many studies of SCADA network security have been carried out around the world. In this paper, we introduce recent security issues in the SCADA network and propose the application of a symmetric encryption method to the Korea SCADA network.

The application of open system architecture in power SCADA system (전력감시제어설비(SCADA)의 open system architecture 적용)

  • 이용해;문국연;박장범
    • 제어로봇시스템학회:학술대회논문집
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    • 1996.10b
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    • pp.992-995
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    • 1996
  • The major roles of Power SCADA System are continuous monitoring of electrical equipments state, real-time data processing and dispatching. Especially, SCADA system demands fast response time in heavy load condition, high reliability, fault tolerance, expansion capacity for the future. According to developing computer system technology, SCADA system is changing system configuration from centralized processing system to distributed processing system. This paper describes operational benefits, problems and improvement (which is studying in theory) in the application of Open System Architecture SCADA which has been installed since 1994, Seoul regional control center in KEPCO.

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Advanced Key Management Architecture Based on Tree Structure for Secure SCADA Communications (안전한 SCADA 통신을 위한 트리 기반의 효율적인 키 관리 구조)

  • Choi, Dong-Hyun;Lee, Sung-Jin;Jeong, Han-Jae;Kang, Dong-Joo;Kim, Hak-Man;Kim, Kyung-Sin;Won, Dong-Ho;Kim, Seung-Joo
    • The KIPS Transactions:PartC
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    • v.16C no.1
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    • pp.37-50
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    • 2009
  • 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.

Key Distribution Process for Encryption of SCADA Communication using Game Theory applied Multiagent System

  • Kim, Hak-Man;Kang, Dong-Joo
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.23 no.11
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    • pp.34-43
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    • 2009
  • SCADA (Supervisory Control and Data Acquisition) system has been used for remote measurement and control on the critical infrastructures as well as modem industrial facilities. As cyber attacks increase on communication networks, SCADA network has been also exposed to cyber security problems. Especially, SCADA systems of energy industry such as electric power, gas and oil are vulnerable to targeted cyber attack and terrorism Recently, many research efforts to solve the problems have made progress on SCADA network security. In this paper, flexible key distribution concept is proposed for improving the security of SCADA network using Multiagent System (MAS).

Building IEC 61850 SCADA system based on TETRA (TETRA 기반 IEC 61850 SCADA 시스템 구축)

  • Song, Byung-Kwen;Jeong, Tae-Ui
    • Journal of IKEEE
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    • v.13 no.3
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    • pp.87-94
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    • 2009
  • TETRA(TErrestrial Trunked RAdio) is the wireless communication system generally adopted to public network and backbone network, as the technology of Trunked Radio System specified by ETSI(European Telecommunications Standards Institute) and currently adopted to the Electric Power IT Backbone Network in Korea. IEC 61850 is the protocol proposed for SAS(Substation Automation System) of SCADA(Supervisory Control And Data Acquisition) system. In this paper, IEC 61850 Server and Client simulator are used based on Linux operating system. The multi-functional gateway, which transforms the communication based on TCP/IP between IEC 61850 Server Simulator and Client Simulator to the one based on TETRA Packet Data Service, is developed such that IEC 61850 SCADA system is constructed based on TETRA.

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A study on development of multimedia SCADA system for electric facility (영상정보 통합형 전기설비 감시시스템 개발 연구)

  • Lee, W.T.;Lee, J.J.;Jeong, Y.K.;Kim, K.H.
    • Proceedings of the KIEE Conference
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    • 1998.07g
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    • pp.2445-2447
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    • 1998
  • For increasing the quality of SCADA system, the application of image information is demanded from typical SCADA system based on data information. Until now, the remote control and monitoring systems combine data information but now gradually have trends to combine voice, data and image information. So multimedia technology is applied to realize new SCADA system. Depends on these requires, we apply new concepts of communication network and multimedia technology to the SCADA system for electric facility. In this paper, we aim at developing multi media supervisory control and data acquisition system based on data and image information, which used electric power system and security system.

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A Study on the data link between SCADA and DAS (한전 변전자동차시스템과 배전자동화시스템의 자료연계방안에 관한 연구)

  • Ko, Sang-Chen;Kim, Yong-Pal
    • Proceedings of the KIEE Conference
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    • 1998.07g
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    • pp.2393-2395
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    • 1998
  • Today it is hard to imagine the operation of power network and its facilities without the control systems such as EMS/SCADA/DAS. In KEPCO, data links to the upper layer of control system (SCABA) is required to launched DAS project lately, in terms of the needs of saving cost for the data gathering facilities (RTU) in the substation that previously equipped SCADA RTU. In this Paper we researched the circumstance of the KEPCO SCADA systems for data link and present the scheme of the data link between DAS and SCADA.

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A SCADA Testbed Implementation Architecture for Security Assessment (SCADA 시스템의 보안성 평가를 위한 테스트베드 구성)

  • Lee, Jong-Joo;Kim, Seog-Joo;Kang, Dong-Joo
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.24 no.4
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    • pp.50-56
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    • 2010
  • Supervisory Control and Data Acquisition Systems (SCADAs) is real-time monitor and control systems. SCADA systems are used to monitor or control chemical and transportation processes, in municipal water supply systems, electric power generation, transmission and distribution, gas and oil pipelines, and other distributed processes. SCADA refers to a large-scale distributed system. The supervisory control system is placed on top of a real time control system to control external processes. Emerging security technologies and security devices are decreasing the vulnerability of the power system against cyber threats. Dealing with these threats and analyzing vulnerabilities is an important task for equipment such as RTU, IED and FEP. To reduce such risks, we develop such a SCADA testbed. This paper presents the development of a testbed designed to assess the vulnerabilities SCADA networks(including serial communication).

A Study on the Interface between DAS and SCADA by using Direct Method (직접연계방법에 의한 DAS-SCADA 연계 연구)

  • Park, So-Young;Shin, Chang-Hoon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.9 no.5
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    • pp.1154-1163
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    • 2008
  • DAS and SCADA system are main systems, which operate and manage the power system by using computer and communication technology. But DAS and SCADA have been operated independently in Korea, so there was some time delay in the fault handling and live-line work. To improve that problems, studies on the interface between DAS and SCADA have been needed. From November 2005 to December 2007, the pilot project has been performed in KEPCO's branch offices, as a result, direct method will be applied widely all over the country until 2010 because the operation information of substation users want can be transmitted fast and it is possible to control 43RC directly although the expense for direct method is about 1.3 times larger than that for web method. To improve problems revealed during the pilot project, substation object to object communication method is proposed and interface database automatic generation and interface system diagnosis and logging functions are developed. Interface data point and communication data type are defined, substation single line diagram automatic generation or manual editing function, SCADA monitoring and controlling function, log data managing function are developed in SCADA HMI program. It is expecting to reduce the average time for each outage about 33% and to improve the reliability, efficiency of operation, execution of DAS from automatic load transfer under a fault, and to contribute to export project.

Securing Internet-based SCADA Wireless Component Communication

  • Robles, Rosslin John;Kim, Tai-hoon
    • International Journal of Internet, Broadcasting and Communication
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    • v.4 no.1
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    • pp.3-7
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    • 2012
  • Traditionally SCADA is connected only in a limited private network. With new technology and facilities, there are also demands of connecting SCADA though the internet. The internet SCADA facility has brought a lot of advantages in terms of control, data viewing and generation. Aside from connecting SCADA to the internet, there are also operators who want to connect their system wirelessly. This can save budget for communication lines. Along with the advantages it brings, are security issues regarding wireless internet SCADA. In this paper, we discuss internet SCADA, its connection through wireless communication and the security issues surrounding it. To answer the security issues, a symmetric-key encryption for internet SCADA is proposed.