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Title	A Blockchain Based Secure Iot System Using Device Identity Management
ID_Doc	479
Authors	Sabrina F.; Li N.; Sohail S.
Year	2022
Published	Sensors, 22, 19
DOI	http://dx.doi.org/10.3390/s22197535
Abstract	Sharing data securely and efficiently has been identified as an issue in IoT-based smart systems such as smart cities, smart agriculture, smart health, etc. A large number of IoT devices are used in these smart systems and they produce a large amount of data. IoT devices generally have limited storage and processing capabilities, and configuring any security techniques on these devices is a challenge. In this paper, we propose a novel device identity management approach for blockchain-based IoT systems that provides data security in two ways. Firstly, a lightweight time-based identification protocol that uses hub identification for validating data. Secondly, data storage is augmented with an effective blockchain application for providing easy access and immutability for data sharing among multiple parties. Our initial prototype implementation shows that: our identity management approach can be implemented in large scale settings, our system can be effectively implemented in blockchain platforms, and our performance evaluation result shows that the prototype fulfills system requirements adequately. © 2022 by the authors.
Author Keywords	authentication; blockchain; fuzzy extractor; identification; IoT; IoT security

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