Secure decentralised deployment of LoRaWAN sensors

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Abstract

Low-power wide-area networks (LPWAN) technologies, such as LoRaWAN, have become a popular and cost-effective way of monitoring assets. Two considerations which still present a barrier to deployment are the cost of deployment and the potential cost and disruption of re-keying a compromised network. This loss of functionality from a compromised network has made security conscious industries reluctant to embrace LPWAN technology. This paper will address these concerns by simplifying the deployment and re-keying of LoRaWAN devices, by detailing a procedure which uses a smartphone’s camera flash to transfer the necessary credentials. Smartphones were chosen as a transfer mechanism since they are both abundant and suitably powerful to generate and transfer secure keys. Using smartphones and light also removes the need for a laptop, a wired connection and programming software, allowing devices to be provisioned out in the field without the need for calibration or specialised tools. The design was created and successfully programs sensor devices in variety of environments, and has demonstrated benefits to critical national infrastructure industries such as utilities.
Original languageEnglish
Number of pages8
JournalIEEE Sensors Journal
Early online date31 Jul 2020
DOIs
Publication statusE-pub ahead of print - 31 Jul 2020

Keywords

  • smart grid
  • internet of things
  • LoRaWAN
  • security applications

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