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Privacy Preservation in Resource-Constrained IoT Devices Using Blockchain—A Survey

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Department of Computer Science, COMSATS University, Islamabad 45550, Pakistan
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Department of Computer Science, Prince Sultan University, Riyadh 11586, Saudi Arabia
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Institute of Information Technology, Kohat University of Science and Technology, Kohat 26000, Pakistan
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Department of Distance Continuing and Computer Education, University of Sindh, Hyderabad 76080, Pakistan
*
Author to whom correspondence should be addressed.
Academic Editors: Sang-Soo Yeo and Damien Sauveron
Electronics 2021, 10(14), 1732; https://doi.org/10.3390/electronics10141732
Received: 8 June 2021 / Revised: 6 July 2021 / Accepted: 11 July 2021 / Published: 19 July 2021
(This article belongs to the Special Issue Security and Privacy for IoT and Multimedia Services)
With opportunities brought by Internet of Things (IoT), it is quite a challenge to assure privacy preservation when a huge number of resource-constrained distributed devices is involved. Blockchain has become popular for its benefits, including decentralization, persistence, immutability, auditability and consensus. With the implementation of blockchain in IoT, the benefits provided by blockchain can be derived in order to make IoT more efficient and maintain trust. In this paper, we discuss some applications of IoT in different fields and privacy-related issues faced by IoT in resource-constrained devices. We discuss some applications of blockchain in vast majority of areas, and the opportunities it brings to resolve IoT privacy limitations. We, then, survey different researches based on the implementation of blockchain in IoT. The goal of this paper is to survey recent researches based on the implementation of blockchain in IoT for privacy preservation. After analyzing the recent solutions, we see that the blockchain is an optimal way for preventing identity disclosure, monitoring, and providing tracking in IoT. View Full-Text
Keywords: blockchain; consensus; IoT; smart contracts; bitcoin blockchain; consensus; IoT; smart contracts; bitcoin
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MDPI and ACS Style

Iftikhar, Z.; Javed, Y.; Zaidi, S.Y.A.; Shah, M.A.; Iqbal Khan, Z.; Mussadiq, S.; Abbasi, K. Privacy Preservation in Resource-Constrained IoT Devices Using Blockchain—A Survey. Electronics 2021, 10, 1732. https://doi.org/10.3390/electronics10141732

AMA Style

Iftikhar Z, Javed Y, Zaidi SYA, Shah MA, Iqbal Khan Z, Mussadiq S, Abbasi K. Privacy Preservation in Resource-Constrained IoT Devices Using Blockchain—A Survey. Electronics. 2021; 10(14):1732. https://doi.org/10.3390/electronics10141732

Chicago/Turabian Style

Iftikhar, Zainab, Yasir Javed, Syed Yawar Abbas Zaidi, Munam Ali Shah, Zafar Iqbal Khan, Shafaq Mussadiq, and Kamran Abbasi. 2021. "Privacy Preservation in Resource-Constrained IoT Devices Using Blockchain—A Survey" Electronics 10, no. 14: 1732. https://doi.org/10.3390/electronics10141732

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