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

Hajar Moudoud (1) , Soumaya Cherkaoui (1) , Lyes Khoukhi (2)

1 UdeS - Université de Sherbrooke
2 ERA - Environnement de Réseaux Autonomes

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.

Domains: Networking and Internet Architecture [cs.NI]

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⟩