Denial-of-service attack resilience dynamic group key agreement for heterogeneous networks

作者：Teo Joseph Chee Ming^*; Tan Chik How; Ng Jim Mee

来源：Telecommunication Systems, 2007, 35(3-4): 141-160.

DOI：10.1007/s11235-007-9045-1

• authenticated group key agreement
• dynamic group membership
• secure group communication
• heterogeneous networks
• DoS attacks

Heterogeneous networks, which can be either integrated wired and wireless networks or fully wireless networks, are convenient as they allow user nodes to be connected whenever and wherever they desire. Group key agreement (GKA) protocols are used to allow nodes in these networks to communicate securely with each other. Dynamic GKA protocols such as Join and Leave Protocol are also important since users can join and leave the network at anytime and the group key has to be changed to provide backward and forward secrecy. Denial-of-Service (DoS) attacks on GKA protocols can disrupt GKA services for secure group communications but most GKA protocols in current literature do not consider protection against DoS attacks. Furthermore, most current GKA protocols only consider outsider attacks and do not consider insider attacks. In this paper, we present three authenticated, energy-efficient and scalable GKA protocols, namely Initial GKA, Join and Leave Protocol, that provide protection against insider and DoS attacks and key confirmation properties. We also present a detection protocol to detect malicious group insiders and continue establishing a group key after blocking these malicious insiders. Unlike current communication energy analysis that uses a single energy per bit value, our communication energy analysis separates point-to-point (P2P) and broadcast communications to provide more detailed study on communications in GKA. Both the complexity and energy analysis show that the three proposed protocols are efficient, scalable and suitable for heterogeneous networks.

• 出版日期2007-8
• 单位南阳理工学院