期刊名称：International Journal of Computer Science and Network Security
印刷版ISSN：1738-7906
出版年度：2013
卷号：13
期号：5
页码：118-123
出版社：International Journal of Computer Science and Network Security
摘要：In 2009, a non-iterative privacy preservation for online lotteries is proposed in IET Information Security. In this paper, we analyze the security flaw of Lee-Chan-Chang��s scheme that can not provide the public verification. With Lagrange interpolating formula over , the method of verifiable random number is introduced, which makes each purchaser involved equally in the generation of winning result. Trusted third party is no longer necessary, which eliminate the fairness bottleneck..
关键词：Electronic lottery; public verification; trusted third party; Lagrange interpolating formula; verifiable random number
