完全匿名的可转化的多证书电子拍卖

匿名性是密封式拍卖一个基本特性，通常一个安全的电子拍卖应该满足①公平性、②标价的秘密性、③匿名性、④中标者的标价有效性. 文中着眼于保护中标者的角度提出了一种完全匿名的可转化的多证书电子拍卖，采用多证书有效地抵制对其他人投标的操纵，采用签密保护中标者的真实身份，采用不可否认可转化的签名验证中标者标价的有效性，在整个电子拍卖过程中完全匿名，无人可以操纵其他人的投标.

Full anonymity converting multi-certificate electronic auction

Anonymity is a vital properly of sealed-bid. A security electronic auction should satisfy the following properties: (1)equity, (2)security of bid, (3)anonymity and (4)validity of the bidder's bid. In this paper, we propose a full anonymous and convertible multi-certificate electronic auction in the case of protecting the winning bidder. It can resist rigging-bid by multi-certificate and protect the real identity of the winner by crypt-sign and verify bid's validity of the winner by the undeniable converting signature. It is full anonymity in the whole auction and no one can manipulate the other bidders.