Decision Tree Based Key Management for Secure Group Communication  

作　　者：P.Parthasarathi S.Shankar 

机构地区：[1]Department of Computer Science and Engineering,Bannari Amman Institute of Technology,Sathyamangalam,638401,India [2]Department of Computer Science and Engineering,Hindusthan College of Engineering and Technology,Coimbatore,641032,India

出　　处：《Computer Systems Science & Engineering》2022年第8期561-575,共15页计算机系统科学与工程（英文）

摘　　要：Group communication is widely used by most of the emerging network applications like telecommunication,video conferencing,simulation applications,distributed and other interactive systems.Secured group communication plays a vital role in case of providing the integrity,authenticity,confidentiality,and availability of the message delivered among the group members with respect to communicate securely between the inter group or else within the group.In secure group communications,the time cost associated with the key updating in the proceedings of the member join and departure is an important aspect of the quality of service,particularly in the large groups with highly active membership.Hence,the paper is aimed to achieve better cost and time efficiency through an improved DC multicast routing protocol which is used to expose the path between the nodes participating in the group communication.During this process,each node constructs an adaptive Ptolemy decision tree for the purpose of generating the contributory key.Each of the node is comprised of three keys which will be exchanged between the nodes for considering the group key for the purpose of secure and cost-efficient group communication.The rekeying process is performed when a member leaves or adds into the group.The performance metrics of novel approach is measured depending on the important factors such as computational and communicational cost,rekeying process and formation of the group.It is concluded from the study that the technique has reduced the computational and communicational cost of the secure group communication when compared to the other existing methods.

关 键 词：Key generation adaptive Ptolemy decision tree cost reduction secure group communication 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]