摘要
通过对黄征等人的拍卖方案(文献[1])的分析,发现其方案中用于检验竞拍者标价的随机数的产生过程存在着安全隐患,这将导致竞拍者标价的提前泄露。针对这类情况,提出了相应的改进方案,解决了标价泄露的问题,并且分析和证明了该改进方案的安全性。
Through analyse on the reference [1],we find tenderer's bids may be leaked that because of the producing course of random numbers which are used to test bids have some faults.We propose an improved scheme to solve that problem.Our improved scheme can solves the secure hidden dangers and have higher security and efficiency than reference[1].
出处
《计算机工程与应用》
CSCD
北大核心
2007年第10期156-158,共3页
Computer Engineering and Applications
基金
现代通信国家重点实验室基金(No.51436020405JB5205)
关键词
电子拍卖
多拍卖物
安全多方计算
秘密共享
electronic auction
multiple items
secure multiparty computation
sharing secret