LBS Meets Blockchain: An Efficient Method With Security Preserving Trust in SAGIN

【Author】 Li, Bohan; Liang, Ruochen; Zhou, Wei; Yin, Hailian; Gao, Han; Cai, Ken

【Source】IEEE INTERNET OF THINGS JOURNAL

【影响因子】10.238

【Abstract】In Internet of Vehicles (IoV), the vehicle ad hoc network (VANET) provides the location-based service (LBS) when vehicles communicate with the dynamic environment. As an integration of satellite systems and terrestrial communications, the space-air-ground integrated network (SAGIN) provides a reliable and efficient way for LBS. But the privacy protection in SAGIN cannot meet LBS security requirements well, so we present a blockchain-based LBS security preserving trust model. K-anonymous location privacy protection algorithm is used to hide users' real position so that users can avoid personal privacy disclosure when requesting LBSs. We propose a trust management algorithm which can detect the malicious behaviors when constructing anonymous regions and clear the malicious users out of the system. Besides, we use blockchain to implement the transparency and conditional anonymity of the system. Missive experiments indicate that our scheme is feasible and outperforms part of state-of-the-art privacy protection approaches.

【Keywords】Blockchain-based trust model; location-based service (LBS); privacy security; space-air-ground integrated network (SAGIN); vehicle ad hoc network (VANET)

【发表时间】2022 APR 15

【收录时间】2022-06-26

【文献类型】实证性文章

【主题类别】

区块链技术-协同技术-隐私计算