A lightweight integrity protection scheme for fast communications in smart grid

Alireza Jolfaei, Krishna Kant

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

7 Citations (Scopus)

Abstract

Due to the mission-critical nature of energy management, smart power grids are prime targets for cyber-attacks. A key security objective in the smart grid is to protect the integrity of synchronized real-time measurements taken by phasor measurement units (PMUs). The current communication protocol in substation automation allows the transmission of PMU data in absence of integrity protection for applications that strictly require low communication latency. This leaves the PMU data vulnerable to man-in-the-middle attacks. In this paper, a lightweight and secure integrity protection algorithm has been proposed to maintain the integrity of PMU data, which fills the missing integrity protection in the IEC 61850-90-5 standard, when the MAC identifier is declared 0. The rigorous security analysis proves the security of the proposed integrity protection method against ciphertext-only attacks and known/chosen plaintext attacks. A comparison with existing integrity protection methods shows that our method is much faster, and is also the only integrity protection scheme that meets the strict timing requirement. Not only the proposed method can be used in power protection applications, but it also can be used in emerging anomaly detection scenarios, where a fast integrity check coupled with low latency communications is used for multiple rounds of message exchanges.
Original languageEnglish
Title of host publicationProceedings of the 14th International Joint Conference on e-Business and Telecommunications
Subtitle of host publicationVolume 6: SECRYPT
EditorsMohammad S. Obaidat, Pierangela Samarati, Enrique Cabello
PublisherSciTePress
Pages31-42
Number of pages12
ISBN (Electronic)9789897582592
DOIs
Publication statusPublished - 2017
Externally publishedYes
Event14th International Conference on Security and Cryptography, SECRYPT 2017 : Part of 14th International Joint Conference on e-Business and Telecommunications, ICETE 2017 - Madrid, Spain
Duration: 24 Jul 201726 Jul 2017

Conference

Conference14th International Conference on Security and Cryptography, SECRYPT 2017
CountrySpain
CityMadrid
Period24/07/1726/07/17

Keywords

  • GOOSE Message
  • Integrity Protection
  • Permutation
  • Phasor Measurement
  • Substation Automation System

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