Detecting sabotage attacks in additive manufacturing using actuator power signatures

Jacob Gatlin, Sofia Belikovetsky, Samuel B. Moore, Yosef Solewicz, Yuval Elovici, Mark Yampolskiy

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Additive manufacturing (AM), a.k.a. 3D printing is increasingly used to manufacture functional parts of safety-critical systems. The AM's dependence on computerization raises the concern that the AM process can be tampered with, and a part's mechanical properties sabotaged. To address this threat, we propose a novel approach for detecting sabotage attacks based on trusted monitoring of the current delivered to each printer motor. The proposed approach offers numerous advantages: 1) it is non-invasive in a time-critical process, 2) it can be retrofitted in legacy systems, and 3) it can be air-gapped from the computerized components of the AM process, making simultaneous compromise more difficult. We evaluated the approach on five categories of toolpath command-level manipulations that impact the geometry of the 3D printed object. Our evaluation showed that all but one tested category of attacks can be reliably detected, even if a single toolpath command is modified.

Original languageEnglish
Article number8759863
Pages (from-to)133421-133432
Number of pages12
JournalIEEE Access
Volume7
DOIs
StatePublished - 1 Jan 2019

Keywords

  • Three-dimensional printing
  • intrusion detection
  • power system security
  • security
  • side-channel attacks

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