一个安全的网上投标协议

A secure electronic tender protocol in Internet

基于保密多方计算和数字签名提出了一个安全的网上投标协议.该协议具有除了投标获胜者外,不泄露任何投标者的身份、投标值的特性,是一个公平、简单、实用的协议.同时,该协议中的数字签名是基于椭圆曲线构造的数字签名.因此,该协议具有更高的安全性、更快的速度、更小的密钥量、使用更灵活等优点.

A secure electronic tender protocol in Intemet is proposed based on secure multiparty computation protocol and digital signature. The proposed protocol, which is fair, simple and practical, has the properties that no information about the losing tenders is leaked except the winner. Furthermore, the digital signature based on elliptic curve makes the protocol high security, high efficiency, small key size and flexible use.