【摘要】 提出了基于双线性对的密码体制在电子拍卖系统中应用的首个方案,利用短群签名技术设计了一个公开的电子拍卖。与其他利用群签名技术设计的电子拍卖方案相比,该方案不仅满足电子拍卖的安全性要求,而且其通信量和存储空间大大节省了。还可以将新方案修改成一个密封式的安全电子拍卖方案,并使之满足相对隐私性。更多还原

【Abstract】 A public electronic auction scheme based on short group signature is designed,which is the first scheme of the applications of the pairing-based cryptography on electronic auctions.Comparing with former auction schemes based on group signatures,the new one satisfies all main properties of common secure public auction schemes,and its communication and storage are much lower.At last,a sealed-bid auction scheme is proposed,which is transformed from the public one and satisfies the property of relative bid privacy.更多还原