计算机工程 ›› 2008, Vol. 34 ›› Issue (24): 140-142.doi: 10.3969/j.issn.1000-3428.2008.24.048

• 安全技术 • 上一篇    下一篇

基于多组密钥树的应用层组播组密钥管理方案

陈 越,寇红召,费晓飞   

  1. (解放军信息工程大学电子技术学院,郑州 450004)

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-12-20 发布日期:2008-12-20

Multi-group Key Tree-based Group Key Management Scheme for Application Level Multicast

CHEN Yue, KOU Hong-zhao, FEI Xiao-fei   

  1. (Institute of Electronic Technology, PLA Information Engineering University, Zhengzhou 450004)
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-12-20 Published:2008-12-20

摘要:

针对现有应用层组播组密钥管理方案可扩展性差等问题,设计一种适用于大规模应用层组播的基于多组密钥树的组密钥管理方案MGKT。该方案对组成员分簇管理,将组密钥的更新限制在簇的范围以内,从而降低了组密钥管理的通信开销。分析和仿真实验表明,在不降低安全性的情况下,MGKT具有较好的可扩展性。

关键词: IP层组播, 应用层组播, 组密钥管理, 可扩展性

Abstract: To solve the scalability problem in Application Level Multicast(ALM) group key management scheme. MGKT, a multi-group key tree based large-scale ALM group key management scheme is proposed. To reduce the communication overhead for group key management, MGKT manages group members in clusters and confines each rekeying operation in one cluster. Analysis and simulation show that MGKT has preferable scalibility without sacrificing security.

Key words: IP level multicast, Application Level Multicast(ALM), group key management, scalability

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