%0 Journal Article
%T Scalable Key management scheme based on member discovery protocol for IP multicast<br>一种基于成员发现协议的可扩展组播密钥管理方案
%A WEI Chu-yuan
%A LI Tao-shen
%A WANG Gao-cai
%A <br>魏楚元
%A 李陶深
%A 王高才
%J 计算机应用
%D 2005
%I 
%X On the basis of analyzing existed schemes,a key management scheme based on member discovery protocol for IP multicast was proposed.Aiming at realistic Internet-like topologies,the member discovery protocol was embeded in our protocol to output a member overlay tree.The multicast group which consisted of all end-users was divided into some virtual subgroups by group-constructing algorithm.Logical Key Hierarchy(LKH) protocol was adopted to implement key management in every subgroup.The group key was distributed to all subgroup security controllers by the group security controller.The protocol was a two-level key management protocol.The improved protocol possesses better scalablity than other schemes,better performance about group rekeying and can be applied to large multicast group.
%K multicast key management
%K group key
%K member discovery protocol
%K rekeying
%K sealability<br>组播密钥管理
%K 组密钥
%K 成员发现协议
%K 密钥更新
%K 可扩展性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=831E194C147C78FAAFCC50BC7ADD1732&aid=848BAF5D81955FB7&yid=2DD7160C83D0ACED&vid=C5154311167311FE&iid=F3090AE9B60B7ED1&sid=8B30EADB51481F94&eid=B7FFAC52F43C6AF4&journal_id=1001-9081&journal_name=计算机应用&referenced_num=0&reference_num=7