An Efficient and Privacy-Preserving Blockchain-Based Authentication Scheme for Low Earth Orbit Satellite-Assisted Internet of Things

【Author】 Wang, Biying; Chang, Zheng; Li, Shancang; Hamalainen, Timo

【Source】IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS

【影响因子】3.491

【Abstract】Recently, integrating satellite networks (e.g., low-Earth-orbit (LEO) satellite constellation) into the Internet of Things (IoT) ecosystem has emerged as a potential paradigm to provide more reliable, ubiquitous, and seamless network services. The LEO satellite networks serves as a key enabler to transform the connectivity across industries and geographical border. Despite the convenience brought from the LEO satellite networks, it arises security concerns, in which the essential one is to secure the communication between the IoT devices and the LEO satellite network. However, some challenges inheriting from the LEO satellite networks need to be considered, which are: the dynamic topology; the resource-constraint satellites; the relative long latency; and multiple beams authentication. In particular, the centralized authentication schemes are no longer suitable for the emerging LEO satellite-assisted IoT ecosystem. In this article, we first introduce the architecture of the LEO satellite network-assisted IoT ecosystem. Then, we propose an efficient and privacy-preserving blockchain-based authentication scheme. The proposed authentication scheme takes the advantages of certificateless encryption and consortium blockchain to provide lightweight key pair computation without appealing devices' information and efficient signature querying and verification. In addition, a fast authentication mechanism is implemented in the scheme in order to reduce the time complexity from querying a certain record for the authentication within a satellite among multiple beams. With the analysis of the storage and computation complexity, the performance evaluation demonstrates the effectiveness of the proposed scheme.

【Keywords】Authentication; Internet of Things; Satellites; Low earth orbit satellites; Blockchains; Satellite constellations; Ecosystems; Authentication scheme; blockchain; Internet of Things (IoT); low-Earth-orbit (LEO) satellite network

【发表时间】2022 DEC

【收录时间】2023-01-14

【文献类型】理论模型

【主题类别】

区块链技术-协同技术-物联网