• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2012, Vol. 34 ›› Issue (7): 1-5.

• 论文 •    下一篇

提供分级接入控制机制的聚合组密钥协商算法

顾小卓   

  1. (清华大学计算机系,北京 100084)
  • 收稿日期:2011-11-13 修回日期:2012-04-17 出版日期:2012-07-25 发布日期:2012-07-25
  • 基金资助:

    国家自然科学基金资助项目(60903184,61073167);国家863计划资助项目(2011AA010704)

An Integrated Group Key Management Scheme with Hierarchical Access Control

GU Xiaozhuo   

  1. (Department of Computer Science,Tsinghua University,Beijing 100084,China)
  • Received:2011-11-13 Revised:2012-04-17 Online:2012-07-25 Published:2012-07-25

摘要:

高效并能实时更新密钥的组密钥协商算法是保证无线自组织网络通信内容安全性和私密性的前提。本文针对成员对多个资源拥有不同接入权限的情况,将集中式分级接入控制机制中的密钥管理算法应用于无线自组织网络中,提出了聚合组密钥协商算法IGK。对密钥建立时的计算开销和通信开销的理论分析表明,聚合组密钥协商算法在密钥建立时要优于单组密钥协商算法。

关键词: 安全组通信, 无线自组织网络, 组密钥协商算法, 分级接入控制

Abstract:

The group key management which is efficient to perform the key updating is the foundation to guarantee the security and privacy of Mobile Ad Hoc Networks(MANET). Inspired by the hierarchical access control in the centralized environment, this paper proposes an integrated group key agreement scheme (IGK) to provide hierarchical access control in MANETs when members have accesses to multiple resources. Performance analyses on computation and communication overhead demonstrate that the integrated group key agreement is more efficient than the single group key agreement scheme.

Key words: secure communications;mobile ad hoc network;contributory group key agreement;hierarchical access control