一种适用于IP视频会议的混合策略组播密钥管理方案

在分析了现有组播密钥管理方案的基础上,针对IP视频会议的特点,将集中式和分布式密钥管理方案相结合,提出了一种多层次的混合密钥管理方案,其高层为管理层,成员之间通过OFT方案协商产生密钥,并管理密钥;底层采用集中管理方式。该方案避免了单点失效问题,具有高效性和可扩展性的优点,适用于解决大型动态组播的密钥管理问题。

Key management scheme based on hybrid strategy for IP video conference

Based on analysis of the existed multicast key management schemes and characteristic of IP video conference,a key management scheme based on multilayer hybrid strategy is proposed,which is unified by centralized and distributed key management schemes.The key management way by manager in higher Layer is negotiation key by OFT,meanwhile the lower layer adopt centralized key management.This scheme not only avoids the single point failure problem but also has higher efficiency and good scalability,therefore can apply to large dynamic group key management.