An Efficient Improved Group Key Agreement Protocol Based on Diffie-Hellman Key Exchange

摘要：

Traditional group key generating methods using binary-tree performs efficiently when adding or deleting nodes dynamically. However, when dealing with paroxysmal needs for group key among multi-nodes in the Internet, their time complexity grows to O (Nlog2N). We propose an improved group key agreement protocol based on Diffie-Hellman key exchange, which can reduce the time complexity of this situation to O (N). It can largely reduce overlapping computation and data packages sending times, and meanwhile, it remains binary-tree in each node, enabling it efficiently to support dynamically adding and deleting nodes as well. And then the security of this method is been analyzed and a basic idea for preventing MITM attacks is been presented.

关键词： Group key Diffie-Hellman key exchange Group Cmmunication

作者: YANG Guang-ming CHEN Jin-ming LU Ya-feng MA Da-ming

作者单位: Department of Information Security, Software School Northeastern University Shenyang 110819, R.P.Chi Dalians Net Management Center of Shenyang Branch The Electron Devices and System Engineering Compan

会议类型: 国际会议

会议名称: The 2nd IEEE International Conference on Advanced Computer Control(第二届先进计算机控制国际会议 ICACC 2010)

会议地点: 沈阳

会议语种:英文

页码: 303-306

在线出版日期: 2010-03-27（万方平台首次上网日期，不代表论文的发表时间）