Privacy-preserving Quantum Sealed-bid Auction Based on Grover’s Search Algorithm

Sealed-bid auction is an important tool in modern economic especially concerned with networks. However, the bidders still lack the privacy protection in previously proposed sealed-bid auction schemes. In this paper, we focus on how to further protect the privacy of the bidders, especially the non-wi...

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Bibliographic Details
Published inScientific reports Vol. 9; no. 1; p. 7626
Main Authors Shi, Run-hua, Zhang, Mingwu
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 20.05.2019
Nature Publishing Group
Nature Portfolio
Subjects
639/705/258
639/766/483/481
Algorithms
Bids
Estates
Humanities and Social Sciences
multidisciplinary
Privacy
Science
Science (multidisciplinary)
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Summary:Sealed-bid auction is an important tool in modern economic especially concerned with networks. However, the bidders still lack the privacy protection in previously proposed sealed-bid auction schemes. In this paper, we focus on how to further protect the privacy of the bidders, especially the non-winning bidders. We first give a new privacy-preserving model of sealed-bid auction and then present a quantum sealed-bid auction scheme with stronger privacy protection. Our proposed scheme takes a general state in N-dimensional Hilbert space as the message carrier, in which each bidder privately marks his bid in an anonymous way, and further utilizes Grover’s search algorithm to find the current highest bid. By O ( lnn ) iterations, it can get the highest bid finally. Compared with any classical scheme in theory, our proposed quantum scheme gets the lower communication complexity.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-019-44030-8