摘要
利用群签名与可验证的秘密共享方案设计了一个新的密封投标的电子拍卖协议。在该协议中,多个拍卖者共同主持拍卖过程,所有的拍卖者通过可验证的秘密共享方案共享一个密钥,这使得投标者在投标时只需要一次加密,其计算量与拍卖者的数量无关;另外,中标者的身份是由群管理者根据中标者对投标消息的签名来确定的,所以一次注册后,投标者可同时参加多个拍卖活动,而不会泄露自己的身份。
Electronic auction is one of the methods of electronic commerce. A new sealed-bid electronic auction based on group signature and verifiable secret sharing scheme was proposed. In this protocol, multi-auctioneers participated in auction synchronously, and all auctioneers shared one key, therefore the bidder needed only one encryption in bidding, and the computation was independent of the number of auctioneers. In addition, the identity of the winner was identified by group manager according to signature of the winner's bidding message, therefore after registering once, bidder could participate in many auctions synchronously without disclosing his identity.
出处
《计算机应用》
CSCD
北大核心
2005年第1期157-159,共3页
journal of Computer Applications
基金
国家973规划资助项目(G1999035804)
国家自然科学基金资助项目(90204015)
河南省自然科学基金资助项目(011105100)
关键词
电子拍卖
拍卖协议
投标
群签名
electronic auction
auction protocol
bid
group signature
