BPT: A Blockchain-Based Privacy Information Preserving System for Trust Data Collection Over Distributed Mobile-Edge Network

【Author】 Li, Ting; Liu, Wei; Xie, Shangsheng; Dong, Mianxiong; Ota, Kaoru; Xiong, Neal N.; Li, Qiang

【Source】IEEE INTERNET OF THINGS JOURNAL

【影响因子】10.238

【Abstract】Contemporarily, the fast development of computing, communication, and storage technology has revolutionized the way that various data-based applications reach massive data from underlying sensor networks. However, such a process also raises two challenging but critical issues: 1) trustworthy and 2) privacy issue for data collectors. Therefore, this article proposes a novel system, which is designed over the distributed mobile-edge network to sufficiently exploit advantages of blockchain and differential privacy (DP) to collect trustworthy data and protect privacy for data collectors. First, to improve trustworthiness of data collections, a new consensus mechanism is proposed for blockchain-based data collection structure, which comprehensively incorporates trustworthy, collection contribution, and throughput together to prefer data collectors for the next block. Second, with the assistance of fully trusted devices, a verifiable trustworthy evaluation strategy is designed to accurately compute the trustworthiness for data collectors. Third, we enforce DP on the data stored in a global blockchain maintained by the cloud server to protect privacy for data collectors without influencing data availability. Finally, both theoretical analyses and experimental results prove that the proposed system comprehensively improves performance of data collections in distributed network without adding any additional cost for the cloud server, compared to other schemes.

【Keywords】Data collection; Blockchains; Smart devices; Servers; Internet of Things; Cloud computing; Differential privacy; Blockchain; differential privacy (DP); distributed mobile-edge network (MEN); drones; trust

【发表时间】2022 JUN 1

【收录时间】2022-06-15

【文献类型】实证性文章

【主题类别】

区块链应用-实体经济-其他