PDMSC: privacy-preserving decentralized multi-skill spatial crowdsourcing

IF 2.5 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS International Journal of Web Information Systems Pub Date : 2024-03-21 DOI:10.1108/ijwis-09-2023-0143

Zhaobin Meng, Yueheng Lu, Hongyue Duan

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Abstract

Purpose The purpose of this paper is to study the following two issues regarding blockchain crowdsourcing. First, to design smart contracts with lower consumption to meet the needs of blockchain crowdsourcing services and also need to design better interaction modes to further reduce the cost of blockchain crowdsourcing services. Second, to design an effective privacy protection mechanism to protect user privacy while still providing high-quality crowdsourcing services for location-sensitive multiskilled mobile space crowdsourcing scenarios and blockchain exposure issues. Design/methodology/approach This paper proposes a blockchain-based privacy-preserving crowdsourcing model for multiskill mobile spaces. The model in this paper uses the zero-knowledge proof method to make the requester believe that the user is within a certain location without the user providing specific location information, thereby protecting the user’s location information and other privacy. In addition, through off-chain calculation and on-chain verification methods, gas consumption is also optimized. Findings This study deployed the model on Ethereum for testing. This study found that the privacy protection is feasible and the gas optimization is obvious. Originality/value This study designed a mobile space crowdsourcing based on a zero-knowledge proof privacy protection mechanism and optimized gas consumption.

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PDMSC：保护隐私的分散式多技能空间众包

目的本文旨在研究区块链众包的以下两个问题。第一，设计消耗更低的智能合约，满足区块链众包服务的需求，同时需要设计更好的交互模式，进一步降低区块链众包服务的成本。其次，针对位置敏感的多技能移动空间众包场景和区块链暴露问题，设计有效的隐私保护机制，在保护用户隐私的同时还能提供高质量的众包服务。设计/方法/途径本文提出了一种基于区块链的多技能移动空间隐私保护众包模型。本文模型采用零知识证明方法，在用户不提供具体位置信息的情况下，使请求者相信用户在某一位置内，从而保护用户的位置信息等隐私。此外，通过链下计算和链上验证方法，还优化了气体消耗。原创性/价值本研究设计了一种基于零知识证明隐私保护机制的移动空间众包，并优化了耗气量。

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来源期刊

International Journal of Web Information Systems COMPUTER SCIENCE, INFORMATION SYSTEMS-

CiteScore

4.60

自引率

0.00%

发文量

期刊介绍： The Global Information Infrastructure is a daily reality. In spite of the many applications in all domains of our societies: e-business, e-commerce, e-learning, e-science, and e-government, for instance, and in spite of the tremendous advances by engineers and scientists, the seamless development of Web information systems and services remains a major challenge. The journal examines how current shared vision for the future is one of semantically-rich information and service oriented architecture for global information systems. This vision is at the convergence of progress in technologies such as XML, Web services, RDF, OWL, of multimedia, multimodal, and multilingual information retrieval, and of distributed, mobile and ubiquitous computing. Topicality While the International Journal of Web Information Systems covers a broad range of topics, the journal welcomes papers that provide a perspective on all aspects of Web information systems: Web semantics and Web dynamics, Web mining and searching, Web databases and Web data integration, Web-based commerce and e-business, Web collaboration and distributed computing, Internet computing and networks, performance of Web applications, and Web multimedia services and Web-based education.