量子和半量子密封投标拍卖：弱点和优势
Quantum and semi-quantum sealed-bid auction: Vulnerabilities and advantages
摘要：
对现有的一类量子密封投标拍卖协议进行了分析，指出它们在几种攻击下是脆弱的（例如，参与者和非参与者的攻击以及参与者的共谋攻击），这些作品中的一些说法是不正确的。我们得到了窃听者在访问密封投标的成功概率的界限。进一步，考虑到安全密封拍卖在减少腐败方面的作用，提出了一种新的半量子密封拍卖协议，投标者不具有量子资源，但可以对量子态进行经典操作.所提出的协议的安全性是针对一组攻击建立的，因此可以确定，所提出的协议不存在现有协议中报告的漏洞。
英文摘要：
A family of existing protocols for quantum sealed-bid auction is critically analyzed, and it is shown that they are vulnerable under several attacks (e.g., the participant's and non-participant's attacks as well as the collusion attack of participants) and some of the claims made in these works are not correct. We obtained the bounds on the success probability of an eavesdropper in accessing the sealed-bids. Further, realizing the role of secure sealed-bid auction in the reduction of corruption, a new protocol for sealed-bid auction is proposed which is semi-quantum in nature, where the bidders do not have quantum resources but they can perform classical operations on the quantum states. The security of the proposed protocol is established against a set of attacks, and thus it is established that the proposed protocol is free from the vulnerabilities reported here in the context of the existing protocols.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
