ABSTRACT
In this chapter, we discuss the challenges for secure smart energy grid and automation systems. We first describe the current security status and existing attacks on power grid and critical infrastructures. en, we use the supervisory control and data acquisition (SCADA) system as an example to show the challenges in securing the automation and smart power grid systems. Distributed control systems (DCSs) and SCADA systems were developed to reduce labor costs and to allow systemwide monitoring and remote control from a central location. Control systems are widely used in such critical infrastructures as the smart electric grid, natural gas, water, and wastewater industries. While control systems can be vulnerable to a variety of types of cyber attacks that could have devastating consequences, little research has been done to secure the control systems. e American Gas Association (AGA), International Electrotechnical Commission Technical
9.1 Energy Grid and Supervisory Control and Data Acquisition: A High-Level Introduction 246
9.2 Recent Attacks and Accidents with Energy Systems and Automation Systems 248
9.3 SCADA Security 252 9.3.1 reats to SCADA Systems 255 9.3.2 Securing SCADA Remote Connections 257 9.3.3 sSCADA Protocol Suite 258 9.3.4 Counter Synchronization 263
9.4 Conclusion 264 References 264
Committee Working Group 15 (IEC TC 57 WG 15), Institute of Electrical and Electronics Engineers (IEEE), National Institute of Standards and Technology (NIST), and National SCADA Test Bed Program have been actively designing cryptographic standards to protect SCADA systems. In this chapter, we briefly review these efforts and discuss related security issues.
