FPB-LKH：A multicast key management scheme improved on LKH

doi:10.3778/j.issn.1002-8331.2010.35.030

Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (35): 10-108.DOI: 10.3778/j.issn.1002-8331.2010.35.030

• 网络、通信、安全 • Previous Articles Next Articles

FPB-LKH：A multicast key management scheme improved on LKH

FAN Shu-ping¹，JIANG Ling-sheng²，YAO Nian-min²，MA Bao-ying²

1.Department of Computer Science and Technology，Mudanjiang Teachers College，Mudanjiang，Heilongjiang 157012，China
2.College of Computer Science and Technology，Harbin Engineering University，Harbin 150001，China

Received:2009-04-15 Revised:2009-06-19 Online:2010-12-11 Published:2010-12-11
Contact: FAN Shu-ping

一种改进LKH的组播密钥管理方案

范书平¹，江凌生²，姚念民²，马宝英²

1.牡丹江师范学院计算机科学与技术系，黑龙江牡丹江 157012
2.哈尔滨工程大学计算机科学与技术学院，哈尔滨 150001

通讯作者: 范书平

Abstract

Abstract: LKH scheme lightens the burden of the server and group members efficiently，while overhead in multicast communication is large.According to the failure probabilities of nodes，a new multicast key management scheme is proposed in this paper.In order to build a logical key tree in the program，nodes with greater failure probabilities are located in the right position of a sub-tree，while the root is the same node as its left child，which is different from the existing LKH scheme.By demonstration as well as experiment，it proves that the scheme is better on nodes storage，amount of key update，resistance of network than the LKH scheme.

Key words: multicast communication, failure probability, Logical Key Hierarchy（LKH）, key management

摘要： 逻辑密钥树方案有效地减轻了组播通信中组成员及组控制器的负担，但组通信过程中的开销较大。提出了一种新的组播密钥管理方案，该方案根据组成员失效概率大小，将失效概率大的组成员置于右子树中右孩子节点处，而根节点和左孩子为相同组成员，从而构建逻辑密钥二叉树，这与现存LKH方案中密钥树的创建过程不同。通过对逻辑密钥二叉树的构造以及仿真实验的分析，均说明该方案在节点失效后的密钥更新量、节点的存储量比LKH方案要小，网络的抵抗性能好。

关键词: 组播通信, 失效概率, 逻辑密钥树, 密钥管理

CLC Number:

TP212.9

FAN Shu-ping¹，JIANG Ling-sheng²，YAO Nian-min²，MA Bao-ying². FPB-LKH：A multicast key management scheme improved on LKH[J]. Computer Engineering and Applications, 2010, 46(35): 10-108.

范书平¹，江凌生²，姚念民²，马宝英². 一种改进LKH的组播密钥管理方案[J]. 计算机工程与应用, 2010, 46(35): 10-108.

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FPB-LKH：A multicast key management scheme improved on LKH

一种改进LKH的组播密钥管理方案

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