Decentralized LPWAN infrastructure using blockchain and digital signatures

摘要

This paper introduces a fully decentralized low-power wide-area network (LPWAN) infrastructure for the Internet of Things (IoT) using the LoRa protocol. While global LPWANs typically require roaming agreements between network providers and a trusted third party for server resolution, we propose a trustless model where the network servers are resolved using a blockchain application. Since LoRaWAN relies on symmetric cryptography, we also propose a new security model that adds non-repudiation using digital signatures. This paves the way for linking devices to decentralized applications. We finally analyze the impact of this new model on message size and energy requirements.