Abstract：
: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.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Shi RH,Zhang Mdoi
10.1038/s41598-019-44030-8subject
Has Abstractpub_date
2019-05-20 00:00:00pages
7626issue
1issn
2045-2322pii
10.1038/s41598-019-44030-8journal_volume
9pub_type
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