Binary Information Press
Cyber security has gained tremendous importance for Distribution Automation System (DAS) over recent years. A lack of cyber security protocol between DAS Front-End Processor (FEP) and widely spread Intelligent Electronic Devices (IEDs) endangers the reliability of DAS in delivery of electricity to consumers. This paper summarizes major cyber threats and security requirements of DAS; it further discusses additional security devices for communication. Particular focus is brought forward on a new security protocol about how to imbed Digital Signature (DS) and keyed-Hashing for Message AuthentiCation (HMAC) algorithm within.