【摘要】 基于离散对数和哈希函数求逆的困难性提出了一个前向安全的多重代理签名方案。此方案同时对代理签名人和原始签名人的权益提供了保护,攻击者即使在第j时段入侵系统,也无法伪造第j时段之前的签名,因而具有较高的执行效率和较强的安全性。更多还原

【Abstract】 Based on difficulty of solving discrete logarithm problems and hash function,this paper presents a forward secure multi-proxy signature scheme.The signature scheme provides the safeguard to the rights and interests of both the original and the proxy signers.Even if an adversary can intrude the system and obtain the signature keys at time period j,it could not forge the proxy signature before time period j.更多还原