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An IoT Blockchain Architecture Using Oracles and Smart Contracts: the Use-Case of a Food Supply Chain

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Soumaya Cherkaoui
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Lyes Khoukhi

Abstract

The blockchain is a distributed technology which allows establishing trust among unreliable users who interact and perform transactions with each other. While blockchain technology has been mainly used for crypto-currency, it has emerged as an enabling technology for establishing trust in the realm of the Internet of Things (IoT). Nevertheless, a naive usage of the blockchain for IoT leads to high delays and extensive computational power. In this paper, we propose a blockchain architecture dedicated to being used in a supply chain which comprises different distributed IoT entities. We propose a lightweight consensus for this architecture, called LC4IoT. The consensus is evaluated through extensive simulations. The results show that the proposed consensus uses low computational power, storage capability and latency.

Dates and versions

hal-02380404 , version 1 (26-11-2019)

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Hajar Moudoud, Soumaya Cherkaoui, Lyes Khoukhi. An IoT Blockchain Architecture Using Oracles and Smart Contracts: the Use-Case of a Food Supply Chain. 2019 IEEE 30th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Sep 2019, Istanbul, Turkey. pp.1-6, ⟨10.1109/PIMRC.2019.8904404⟩. ⟨hal-02380404⟩
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