计算机科学 ›› 2017, Vol. 44 ›› Issue (3): 145-149.doi: 10.11896/j.issn.1002-137X.2017.03.032
郭萍,傅德胜,朱节中,成亚萍
GUO Ping, FU De-sheng, ZHU Jie-zhong and CHENG Ya-ping
摘要： 为解决移动自组网(Mobile Ad Hoc Network,MANET)网络信道开放、节点灵活多变且资源受限以及难以部署复杂认证机制的问题,结合轻量级CA思想,构造出一种适用于生存周期短、拓扑结构高度动态变化的MANET的认证体系结构即轻量级可移交认证中心(Lightweight and Shifted Certification Authority,LSCA)。LSCA结构简化了传统基于证书CA机制的公钥产生及验证的复杂性,无需证书管理；同时以移交CA角色的方式工作,不需预先配置节点及预知网络拓扑结构,使系统在不采用门限机制的情况下具备一定的容侵能力。性能分析及仿真实验表明:LSCA对DoS攻击表现出较强的健壮性,在通信、计算及存储代价方面均优于分布式CA及门限机制CA,适用于动态多变、生存周期较短的MANET网络应用。
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