A Key Distribution Scheme for Conditional Access System in PPV
Jianguo Liu · Jisuanji gongcheng · 2006
Conditional access is the important technology to realize PPV service,as the efficiency and security of key distribution are the main factors which influence the performance of condition access system.This paper proposes a balance-tree key distribution model on the basis of four-level key distribution scheme,and proves that this scheme has optimal distribution efficiency.