Decentralized Beacons: Attesting the Ground Truth of Blockchain State for Constrained IoT Devices

Santeri Paavolainen, Pekka Nikander

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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Internet of Thing devices (IoT devices) are often constrained in terms of computing, memory, storage, power, and network resources. This makes them ill-suited to operate as first-class citizens on a blockchain, such as Ethereum, preventing the IoT devices from attaining the security guarantees that are
available to better resourced nodes that are able to operate as full, validating nodes on the blockchain. IoT devices may use so-called light protocols to interact with the blockchain with minimal resource requirements, but these protocols provide only probabilistic security guarantees. In this position paper, we propose a new mechanism where an operator of IoT devices is able to send a “ground truth state” to the devices via a new mechanism, which we call “decentralized beacons”, enabling them to gain full security guarantees of the blockchain state.
Original languageEnglish
Title of host publicationGlobal IoT Summit, GIoTS 2019 - Proceedings
Number of pages6
ISBN (Electronic)978-1-7281-2171-0
Publication statusPublished - 2019
MoE publication typeA4 Conference publication
EventWorkshop on Internet of Things Security and Privacy - Aarhus, Denmark
Duration: 17 Jun 201921 Jun 2019


WorkshopWorkshop on Internet of Things Security and Privacy
Abbreviated titleWISP


  • Internet of Things
  • Blockchain
  • Ethereum


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