【Source】ROLE OF BLOCKCHAIN TECHNOLOGY IN IOT APPLICATIONS
【Abstract】Motivated by the recent explosion of interest around the blockchain, we examine whether they make a good fit to build a lightweight and robust access control framework to address security and privacy issues in the Internet of Things (IoT) sector. In this direction, this chapter discusses the limitations of the centralized model to secure IoT and proposes the blockchain approach as example of successful distributed system to bring security and privacy to IoT devices. In this direction, we introduce FairAccess and PPDAC, as a lightweight and privacy-preserving access control framework based on the emergent blockchain technology, mainly the permissionless and public type, to ensure fine-grained access control functions for IoT devices with strong anonymity guarantee for IoT end-users. The proposed framework retains the benefits of the blockchain to meet IoT security and privacy arising needs while overcoming the challenges in integrating the blockchain to IoT.
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