TBSCrowd: A Blockchain-Assisted Privacy-Preserving Mobile Crowdsourcing Scheme From Threshold Blind Signatures

【Author】 Liu, Jinhui; Dong, Shunyu; Wen, Jiaming; Tang, Bo; Yu, Yong

【Source】IEEE INTERNET OF THINGS JOURNAL

【影响因子】10.238

【Abstract】Mobile crowdsourcing is the practice of hiring a number of people (workers) at a low cost to complete tasks that are typically difficult to complete individually. However, in the IoT era, how to achieve lightweight privacy preservation and evaluate the trust of human mobility are crucial matters. Therefore, this article proposes a blockchain assisted privacy-preserving mobile crowdsourcing scheme based on threshold blind signatures (TBSCrowd for short). We design a blockchain assisted privacy-preserving mobile crowdsourcing scheme which can preserve security, robustness, fairness while reducing computation and communication overheads of scheme. To achieve the properties of privacy, unforgeability and robustness, we propose robust asynchronous ECC threshold signatures. Simulations are conducted to show the performance of the TBSCrowd scheme, and the experiment results demonstrate that our construction significantly outperforms some related schemes in security and other related aspects.

【Keywords】Crowdsourcing; Blockchains; Security; Privacy; Task analysis; Robustness; Internet of Things; Blind signatures; blockchain; mobile crowdsourcing system; privacy preserving; security; threshold signatures

【发表时间】2024 1-Jun

【收录时间】2024-09-24

【文献类型】实验仿真

【主题类别】

区块链技术-协同技术-隐私保护