基于模糊数学的安全多播批量密钥更新方法

Batch Rekeying Method for Secure Multicast Based on Fuzzy Math

提出一种基于模糊数学的批量密钥更新方法,当时钟间隔到来时,综合考虑成员变动数量、成员变动率及时间间隔等各种因素以确定是否更新。仿真试验表明,该方法相对于固定间隔密钥更新方法在密钥更新性能上有所提高,而且具有更好的灵活性,能适应各种多播应用的需求。

A fuzzy math-based batch rekeying method was proposed. Factors like the change of membership num- bers, the rate of change of members and time interval were considered to determine whether to perform batch rekey ing at clock interval comes. Simulation results showed that the method had higher rekeying performance compared with interval-fixed batch rekeying. And the method had more flexibility and fit all sorts of multieast applications.