Cyber-Physical Firewall: Monitoring and Controlling the Threats Caused by Malicious Analog Signals

Ryo Iijima, Tatsuya Takehisa, Tatsuya Mori

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

Abstract

This work developed a new security framework named Cyber-Physical Firewall (CPFW), which provides a generic and flexible access control mechanism for regulating the malicious analog signals that target cyber-physical system (CPS) devices. This framework enables the defeat of various attacks that make use of malicious analog signals against CPS devices; e.g., stealth voice command injection attack using ultrasonic waves or adversarial examples, or attacks to crash drones in flight using malicious sound waves. Based on relevant previously reported findings, we first defined the requirements and design specifications of the CPFW framework. Then, we built a prototype CPFW framework and demonstrated its feasibility through extensive performance evaluations and case-study experiments using three real-world attacks; ultrasonic attacks (DolphinAttack), noise attacks (Audio Adversarial Examples), and resonant attacks (WALNUT).

Original languageEnglish
Title of host publicationProceedings of the 19th ACM International Conference on Computing Frontiers 2022, CF 2022
PublisherAssociation for Computing Machinery
Pages296-304
Number of pages9
ISBN (Electronic)9781450393386
DOIs
Publication statusPublished - 2022 May 17
Event19th ACM International Conference on Computing Frontiers, CF 2022 - Turin, Italy
Duration: 2022 May 172022 May 19

Publication series

NameACM International Conference Proceeding Series

Conference

Conference19th ACM International Conference on Computing Frontiers, CF 2022
Country/TerritoryItaly
CityTurin
Period22/5/1722/5/19

Keywords

  • analog signal
  • audio attacks
  • cyber-physical system
  • output

ASJC Scopus subject areas

  • Human-Computer Interaction
  • Computer Networks and Communications
  • Computer Vision and Pattern Recognition
  • Software

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