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Short paper: Gathering tamper evidence in Wi-Fi networks based on channel state information

  • Ibrahim Ethem Bagci
  • , Utz Roedig
  • , Matthias Schulz
  • , Matthias Hollick
  • Lancaster University
  • Technische Universität Darmstadt

Research output: Chapter in Book/Report/Conference proceedingsConference proceedingpeer-review

Abstract

Wireless devices are often used in application scenarios with strict security requirements. Examples are physical intrusion detection systems commonly used to protect factories, airports or government buildings. In such scenarios, additional security features such as tamper detection are highly desirable to complement traditional cryptographic mechanisms. In this paper we use channel state information (CSI), extracted from off-the-shelf 802.11n Wi-Fi cards, to calculate a tamper-evidence value for transmitters. This value enables detection of tampering due to device movement or replacement. We describe algorithms for tamper-evidence value computation, discuss the interpretation of this value and evaluate its effectiveness.

Original languageEnglish
Title of host publicationWiSec 2014 - Proceedings of the 7th ACM Conference on Security and Privacy in Wireless and Mobile Networks
PublisherAssociation for Computing Machinery
Pages183-188
Number of pages6
ISBN (Print)9781450329729
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event7th ACM Conference on Security and Privacy in Wireless and Mobile Networks, WiSec 2014 - Oxford, United Kingdom
Duration: 23 Jul 201425 Jul 2014

Publication series

NameWiSec 2014 - Proceedings of the 7th ACM Conference on Security and Privacy in Wireless and Mobile Networks

Conference

Conference7th ACM Conference on Security and Privacy in Wireless and Mobile Networks, WiSec 2014
Country/TerritoryUnited Kingdom
CityOxford
Period23/07/1425/07/14

Keywords

  • 802.11
  • channel fingerprinting
  • channel state information
  • ofdm
  • phy
  • security
  • tamper evidence
  • wireless

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