一个基于身份的密钥隔离认证密钥协商协议  

ID-based key-insulated authenticated key agreement protocol

作　　者：朱国斌[1] 赵洋[1] 熊虎[1] 秦志光[1] 

机构地区：[1]电子科技大学计算机科学与工程学院,成都610054

出　　处：《计算机应用研究》2015年第3期885-886,908,共3页Application Research of Computers

基　　金：国家自然科学基金资助项目(61003230;61103206);中央高校基本科研业务费专项资金资助项目(ZYGX2011J063)

摘　　要：鉴于目前已有的基于身份的认证密钥协商协议都未考虑后向安全性,结合密钥进化的思想,利用椭圆曲线加法群提出了一个基于身份的密钥隔离认证密钥协商协议。协议去除了双线性对运算,效率比基于双线性对构造的基于身份的协议有较大提高;协议不仅满足目前已知的所有针对认证密钥协商协议的安全性要求,而且还满足后向安全性。In view of the absence of backward security in all existing identity-based（ID-based） authenticated key agreement protocols, this paper proposed an ID-based key-insulated key agreement protocol from additive elliptic curve group by incorpo- rating the idea of key evolution. Comparing with existing works, this protocol eliminated the pairing operation and thus outper- formed the pairing-based ID-based authenticated key agreement protocol. Furthermore, this protocol enjoys both of the known security requirements and the backward security. To the best of author＇ s knowledge, this is the first ID-based key-insulated au- thenticated key agreement protocol in the literature.

关 键 词：基于身份的密码体制 认证的密钥协商 后向安全性 密钥隔离 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]