%0 Journal Article
%T A Rekeying Algorithms for Dynamics Multicast<br>一种动态组播的密钥更新算法
%A GAO Jun-Wei
%A YANG Zong-Kai
%A <br>高俊伟
%A 杨宗凯
%J 计算机科学
%D 2007
%I 
%X To provide communication confidentiality in multicasting applications , traffic data in secure multicast is encrypted with a session key known only by certificated group members. Whenever there is a change in the group membership, the session key must be updated dynamically. The hierarchical key-tree approach can achieve logarithmic rekeying costs. However , the efficient of hierarchical key-tree depends on whether the key tree remains balanced. In this paper, we propose to use an order-m B-tree as multicasting key management trees, the rekeying cost of inserting a new member is reduced compared to using the traditional hierarchical key-tree.
%K Key management
%K Secure multicast
%K Rekeying<br>密钥管理
%K 安全组播
%K 密钥更新
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=224C59766BC5C103A453639E19DABE30&yid=A732AF04DDA03BB3&vid=339D79302DF62549&iid=38B194292C032A66&sid=318E4CC20AED4940&eid=E514EE58E0E50ECF&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=11