Key management scheme based on hybrid strategy for IP video conference
Lei Xu · 2007
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.