Security Improvements on An Efficient Group Key Agreement Protocol

摘要：

Group key agreement protocols are important for collaborative and group-oriented applications,which enable group members to share a common conference key for secure group communication. Jung1 proposed an efficient group key agreement protocol which does not need public key cryptosystems and can be applied in dynamic group applications. But not long ago Lee2 found inside attack can disrupt group key establishment in Jung’s scheme. In this paper, we propose two security improvements on Jung’s scheme, which can trace malicious attack and malicious members, and does not leak sensitive information of the group. The purpose of the improvements are not to get the malicious out of the group, but to be tolerant of the existence of malicious members and the group key can still be established in the group.

关键词： Group Communication key agreement Inside attack re-key

作者: Kaiping Xue Mingxiu Hu Peilin Hong Hancheng Lu

作者单位: The Information Network Lab of EEIS Department,University of Science and Technology of China(USTC),Hefei,China,230027

会议类型: 国际会议

会议名称: The IET 2nd International Conference on Wireless,Mobile & Multimedia Networks(第二届IET国际无线移动多媒体网络会议)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-12（万方平台首次上网日期，不代表论文的发表时间）