In this paper, the cryptanalysis about the quantum sealed-bid auction, whose feature is that by introducing a postconfirmation mechanism the malicious bidders cannot collude with auctioneers, is given. We found that a malicious bidder can obtain the other bidders' bids with a probability of 0.854. Moreover, there will be a higher probability if some bidders collude to attack the other bidders' bids. To prevent such attacks, we propose an effective improvement by means of the hash function.
机构:
Key Laboratory of Optoelectronic Information Acquisition & Manipulation of Ministry of Education of China,School of Physics & Material Science,Anhui UniversityKey Laboratory of Optoelectronic Information Acquisition & Manipulation of Ministry of Education of China,School of Physics & Material Science,Anhui University
机构:
North China Elect Power Univ, Sch Control & Comp Engn, Beijing, Peoples R ChinaNorth China Elect Power Univ, Sch Control & Comp Engn, Beijing, Peoples R China
Wu, Mingxia
Shi, Run-hua
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机构:
North China Elect Power Univ, Sch Control & Comp Engn, Beijing, Peoples R ChinaNorth China Elect Power Univ, Sch Control & Comp Engn, Beijing, Peoples R China
Shi, Run-hua
Gao, Wei
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机构:
North China Elect Power Univ, Sch Control & Comp Engn, Beijing, Peoples R ChinaNorth China Elect Power Univ, Sch Control & Comp Engn, Beijing, Peoples R China
Gao, Wei
Li, Kunchang
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机构:
North China Elect Power Univ, Sch Control & Comp Engn, Beijing, Peoples R ChinaNorth China Elect Power Univ, Sch Control & Comp Engn, Beijing, Peoples R China