适合于无线传感器网络的混合式组密钥管理方案  

Hybird group key management scheme for wireless sensor networks

作　　者：陈燕俐[1,2] 杨庚[3] 

机构地区：[1]南京邮电大学计算机学院,江苏南京210003 [2]福建师范大学网络安全与密码技术重点实验室,福建福州350007 [3]南京邮电大学科技处,江苏南京210003

出　　处：《通信学报》2010年第11期56-64,共9页Journal on Communications

基　　金：国家自然科学基金资助项目(60873231);江苏省高校自然科学基金资助项目(08KJB520006);网络安全与密码技术福建省高校重点实验室开放课题基金资助项目(09A010)~~

摘　　要：针对无线传感器网络中经常出现节点加入或退出网络的情况,提出了一种安全有效的混合式组密钥管理方案。多播报文的加密和节点加入时的组密钥更新,采用了对称加密技术;而系统建立后,组密钥的分发和节点退出后的组密钥更新,采用了基于身份的公钥广播加密方法。方案可抗同谋、具有前向保密性、后向保密性等安全性质。与典型组密钥管理方案相比,方案在适当增加计算开销的情况下,有效降低了节点的存储开销和组密钥更新通信开销。由于节点的存储量、组密钥更新开销独立于群组大小,方案具有较好的扩展性,适合应用于无线传感器网络环境。Since sensor nodes join or leave the wireless sensor networks frequently,it is necessary to build a secure and efficient group key management system.An efficient and secure group key management scheme was proposed.Private-key cryptosystems are used to encrypt multicast messages and rekey the group when new nodes join the group,while the tech-nology of identity-based broadcast encryption is used to distribute the group key and rekey the group when nodes leave the group.The proposed scheme satisfies the desired security properties,such as forward secrecy,backward secrecy and collusion resistant.Compared with existing group key management schemes in wireless sensor networks,the scheme can efficiently reduce key storage and communication overhead of rekeying messages.As storage overhead and rekeying cost of nodes are not dependent of the scale of networks,the proposed scheme is applicable to wireless sensor networks.

关 键 词：组密钥管理 无线传感器网络 广播加密 组密钥更新 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]