Distributed watchdogs based on blockchain for securing industrial internet of things

Jonghyup Lee, Taekyoung Kwon

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


The Industrial Internet of Things (IIoT) could enhance automation and analytics in industrial environments. Despite the promising benefits of IIoT, securely managing software updates is a challenging problem for those critical applications. This is due to at least the intrinsic lack of software protection mechanisms in legacy industrial systems. In this paper, to address the challenges in building a secure software supply chain for industrial environments, we propose a new approach that leverages distributed watchdogs with blockchain systems in protecting software supply chains. For this purpose, we bind every entity with a unique identity in the blockchain and employ the blockchain as a delegated authenticator by mapping every reporting action to a non-fungible token transfer. Moreover, we present a detailed specification to clearly define the behavior of systems and to apply model checking.

Original languageEnglish
Article number4393
Issue number13
Publication statusPublished - 2021 Jul 1

Bibliographical note

Funding Information:
† This work was supported by Defense Acquisition Program Administration and Agency for Defense Development under the contract (UD190016ED).

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Information Systems
  • Biochemistry
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Electrical and Electronic Engineering


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