SmartAuction: A blockchain-based secure implementation of private data queries

【Author】 Zhang, Mengxiao; Liu, Jiamou; Feng, Kaiyu; Beltran, Fernando; Zhang, Zijian

【Source】FUTURE GENERATION COMPUTER SYSTEMS-THE INTERNATIONAL JOURNAL OF ESCIENCE

【影响因子】7.307

【Abstract】A data marketplace provides a platform for data trading by bringing together data owners and data consumers with a data broker. Recent advancements in mechanism design of data marketplaces have introduced a number of private data query mechanisms that facilitate the trading of private data. A critical assumption to ensuring that these mechanisms function as intended in a real-world online platform, which is often overlooked in the mechanism design literature, is that they are implemented in a network infrastructure that guarantees secure and fair trade. Such a network infrastructure should allow data storage, communications and transactions to satisfy confidentiality, data integrity, fair brokerage, and privacy requirements. In this paper, we propose Smart Auction, the first blockchain-based secure implementation of a private data query system. Smart Auction utilises a public-key encryption scheme, a digital signature scheme and two smart contracts to facilitate the four tasks of a data trade: data submission, data request, auction and query, and payment and delivery. Using universal composability (UC) framework, we verify that Smart Auction satisfies the desirable properties mentioned above. We also conduct experiment to show that Smart Auction can be implemented in real Ethereum platforms and it has a broad applicability. (C) 2022 Published by Elsevier B.V.

【Keywords】Blockchain; Smart contract; Data marketplace; Data trade; Universal composability; Auction

【发表时间】2023 JAN

【收录时间】2022-10-05

【文献类型】实验仿真

【主题类别】

区块链应用-实体经济-其他