抵抗共谋攻击的服务器辅助验证签名方案

摘要

In order to make the server to verify multiple messages of different private key signature,this paper presented a server-aided verification scheme based on aggregate signature.The server could calculated pairing operations which required much more computational cost.It was effectively reduce the amount of calculation of verification phase.Furthermore,the new scheme is proved to be secure against collusion and adaptive chosen message attacks.%为了使服务器辅助验证算法一次能够验证由不同私钥签名的多个消息，运用聚合签名的思想提出了一个基于聚合签名的服务器辅助验证方案，由服务器执行验证算法中计算代价大的对运算，有效地减少了算法验证阶段的计算量。在服务器可知道签名密钥的假设下，证明了该方案在共谋和适应性选择消息攻击下是安全的。