一个基于秘密分享和签密的高效多轮电子拍卖方案

AN EFFICIENT ELECTRONIC AUCTION SCHEME BASED ON SECRET SHARING AND SIGNCRYPTION

利用一个新的秘密分享方案和签密技术,提出了一个安全、高效的多轮电子拍卖方案。在该方案中,除了中标人外其他投标人的投标价和标书自始至终是保密的;所有投标人都可以验证中标结果。在消息的秘密传送中,使用了签密技术,同时实现了保密和认证,从而大大提高了效率。同时该方案也可用于第二价位拍卖。

A secure and efficient multi-round electronic auction scheme is presented using a new secret sharing scheme and the technique of signcryption. In this scheme, all bidder's bidding values are always kept secret except for the winner's. The technique of signcryption is used to ensure both the secrecy and authenticity of messages so that the efficiency is greatly improved. Moreover this scheme is also suitable for second-price auction.