一种新的多层移动ad hoc网络中的密钥管理方案  

A New Scheme of Key Management in Multi-layer Ad hoc Networks

作　　者：朱征林[1] 史杏荣[1] 袁平波[1] 

机构地区：[1]中国科学技术大学电子工程与信息科学系,合肥230027

出　　处：《计算机工程与应用》2005年第26期141-144,共4页Computer Engineering and Applications

基　　金：国家863高技术研究发展计划项目(编号:2002AA783043)资助

摘　　要：战地网络极易受到各种攻击和破坏,要实现其安全通信,密钥管理是关键技术。多层移动adhoc网络是比较适合战地环境的一种网络组织结构,该网络中一种基于PKI的密钥管理方案已被提出。这个方案基本实现了战地环境下的安全性能,但它加重了网络负载并对普通节点的计算和存储能力有较高的要求。该文提出了一种新的基于用户标识符和门限加密技术相结合的密钥管理方案,与前者相比它在保证安全性能的同时明显地降低了网络负载,并且对普通节点的计算和储存能力没有特殊要求,另外还简化了密钥管理过程,从而更好地适应战地网络环境。Key management is an essential technique to secure communication which is critical in the tactical environments where the network infrastructure is vulnerable to various attacks and compromises.A way based on PKI infrastructure to accomplish key management in multi-layer ad hoc networks which adapt well to battlefields has been proposed, Using this scheme,rapid increase in network load and demanding computation and storage of common network nodes emerge at the same time security requirements are fulfilled.In this paper we design a new security key management combining identify-based cryptography with threshold secret sharing concept.Comparing with the PKI-based solution,our scheme reduces the network load sharply and dosen＇t require novel computation and storage of common network nodes and simplifies the processes of key management as well as maintains the security performances,therefore it functions much more effectively in the tactical circumstances,

关 键 词：密钥管理 基于用户标识符 门限秘密分享 多层移动ad HOC网络 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]