| 一个自适应的安全组通信秘钥更新算法 |
| |
| 引用本文： | 赵欣,吴敏强,陈道蓄,谢立.一个自适应的安全组通信秘钥更新算法[J].电子学报,2003,31(5):654-658. |
| |
| 作者姓名： | 赵欣 吴敏强 陈道蓄 谢立 |
| |
| 作者单位： | 南京大学软件国家重点实验室,江苏南京,210093 |
| |
| 摘 要： | 为保证组通信的安全，需要在组成员出现变化的时候更新通信秘钥．为节省秘钥更新开销，研究人员引入了秘钥批量更新机制，它能让安全组播通信的管理节点将组成员的加入／退出请求缓冲起来，然后定期地更新秘钥，从而能有效地减少秘钥更新带来的开销．但是，固定周期的秘钥更新策略显然不能适应组格通信的动态变化，难以在各种情况下都达到较为理想的结果．本文介绍了一个自适应的秘钥更新算法，它能根据当前组成员加入／退出请求的到达模式动态决定秘钥更新的周期．另外，它还能让用户调整算法参数，以满足自身的特定要求．试验模拟的结果表明，该算法能在各种组播通信情况下达到优化的状态。
|
| 关 键 词： | 批量秘钥更新 安全组通信 请求到达模式 |
| 文章编号： | 0372-2112(2003)04-0654-05 |
An Adaptive Re-Keying Mechanism for Secure Multicast |
| |
| ZHAO Xin,WU Min qiang,CHEN Dao xu,XIE Li.An Adaptive Re-Keying Mechanism for Secure Multicast[J].Acta Electronica Sinica,2003,31(5):654-658. |
| |
| Authors: | ZHAO Xin WU Min qiang CHEN Dao xu XIE Li |
| |
| Abstract: | To make the multicast session secure,the multicast group needs to change the session key when the group member set changes.Batch re keying mechanism,in which group leader batches up join/leave requests and serves them together after a period of time,is introduced to reduce the overhead of group re keying.Fixed period cannot adapt to the dynamic nature of multicast session and may not be optimal all the time.An adaptive batch re keying algorithm was presented,and it which can adaptively determine the most appropriate time according to current request arrival pattern.Applications can change the parameters of the adaptive batching algorithm to meet their performance preference.Simulation results show that the adaptive algorithm achieves optimal performance point in various multicast scenarios. |
| |
| Keywords: | batch re keying secure multicast request arrival model |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
