Blockchain for IoT security and privacy: The case study of a smart home

Ali Dorri, Salil S. Kanhere, Raja Jurdak, Praveen Gauravaram

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

691 Citations (Scopus)

Abstract

Internet of Things (IoT) security and privacy remain a major challenge, mainly due to the massive scale and distributed nature of IoT networks. Blockchain-based approaches provide decentralized security and privacy, yet they involve significant energy, delay, and computational overhead that is not suitable for most resource-constrained IoT devices. In our previous work, we presented a lightweight instantiation of a BC particularly geared for use in IoT by eliminating the Proof of Work (POW) and the concept of coins. Our approach was exemplified in a smart home setting and consists of three main tiers namely: cloud storage, overlay, and smart home. In this paper we delve deeper and outline the various core components and functions of the smart home tier. Each smart home is equipped with an always online, high resource device, known as 'miner' that is responsible for handling all communication within and external to the home. The miner also preserves a private and secure BC, used for controlling and auditing communications. We show that our proposed BC-based smart home framework is secure by thoroughly analysing its security with respect to the fundamental security goals of confidentiality, integrity, and availability. Finally, we present simulation results to highlight that the overheads (in terms of traffic, processing time and energy consumption) introduced by our approach are insignificant relative to its security and privacy gains.

Original languageEnglish
Title of host publication2017 IEEE International Conference on Pervasive Computing and Communications Workshops (PerCom Workshops)
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages618-623
Number of pages6
ISBN (Electronic)9781509043385
DOIs
Publication statusPublished - 2 May 2017
Externally publishedYes
Event2nd IEEE PERCOM Workshop On Security Privacy And Trust In The Internet of Things 2017 - Kona, Big Island, United States
Duration: 13 Mar 201717 Mar 2017

Other

Other2nd IEEE PERCOM Workshop On Security Privacy And Trust In The Internet of Things 2017
CountryUnited States
CityKona, Big Island
Period13/03/1717/03/17

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