同步无线Mesh网络的密钥同步更新机制  

Key synchronous update scheme in synchronous wireless Mesh network

作　　者：刘芳[1] 孙炎森[2] 鄢楚平[1] 

机构地区：[1]华北计算技术研究所,北京100083 [2]中信银行股份有限公司,北京100026

出　　处：《计算机工程与设计》2016年第1期60-64,共5页Computer Engineering and Design

摘　　要：为保障同步无线Mesh网络的安全性,需对网络中通信节点间的通信密钥进行动态更新,针对密钥更新过程中通信节点密钥的同步更新问题,设计一种密钥同步更新机制。针对同步无线Mesh网络的同步特性,设计网络中通信节点间的统一时间标识,利用统一时间标识实现通信节点间新密钥生效时间点的一致性。为保障密钥同步更新过程的健壮性,识别并处理在密钥更新过程中可能出现的异常情况。对该密钥同步更新机制的安全性进行分析,分析结果表明,该机制能够防止重放攻击和伪造攻击。To ensure the security of wireless Mesh network synchronization,network node’s key needed to be updated,to solve the key synchronous update problem,a key synchronous update mechanism was designed.Based on the synchronization characteristics of synchronous wireless Mesh network,a time descriptor was designed,using the time descriptor,the new key of communication node worked at the same time.To ensure the robustness of the key update process,abnormal situations in key update process were found and processed.The security of the proposed mechanism was analyzed.The result shows that replay attack and forgery attacks can be avoided.

关 键 词：无线MESH网络 同步 密钥更新 beacon时隙 安全性 

分 类 号：TP393.04[自动化与计算机技术—计算机应用技术]