一种安全增强的无线Ad Hoc网络门限签名方案

Security Enhanced Threshold Signature Scheme for Wireless Ad Hoc Network

在椭圆曲线可验证门限签名的基础上,结合Feldman可验证秘密共享和一种新型的可验证密钥重分派算法,提出一种具有前摄安全性、参数可调节的椭圆曲线可验证门限签名方案。该方案通过周期地在不同的访问结构中重新分派密钥分片,增强了签名密钥的安全性,同时使签名方案中的门限和签名服务器个数都可动态调整,增强了灵活性和可伸缩性。

A proactive secure and adjustable threshold signature scheme for Ad Hoc network is proposed based on the verifiable threshold elliptic curve digital signature algorithm,using the Feldman verifiable secret sharing scheme and a new verifiable secret redistribution scheme.In the proposed scheme,security is enhanced through the periodically redistributed secret shares.Furthermore,the threshold and the number of servers can be adjusted easily.