Efficient Group Key Management in Wireless LANs

Author

Li, Celia ; Nguyen, Uyen Trang

Author_Institution

Dept. of Comput. Sci. & Eng., York Univ., Toronto, ON, Canada

fYear

2012

fDate

26-28 June 2012

Firstpage

101

Lastpage

108

Abstract

Group key management (GKM) refers to the actions taken to update and distribute the group key upon members joining and leaving a multicast/broadcast group. The GKM scheme defined in the IEEE 802.11 WLAN standards is not efficient because the re-keying latency grows linearly with the number of clients connected to an access point. In this paper, we apply the logical key hierarchy (LKH) and one-way function tree (OFT) algorithms to GKM in WLANs to improve its performance. Our numerical analyses show that the LKH and OFT algorithms reduce the re-keying latency of GKM in WLANs to logarithmic time.

Keywords

computer network management; numerical analysis; trees (mathematics); wireless LAN; GKM scheme; IEEE 802.11 WLAN standards; LKH algorithms; OFT algorithms; access point; group key management; logarithmic time; logical key hierarchy algorithms; multicast-broadcast group; numerical analyses; one-way function tree algorithms; rekeying latency reduction; wireless LAN; Algorithm design and analysis; Encryption; IEEE 802.11 Standards; Servers; Unicast; Wireless LAN; Group key management; logical key hierarchy; one-way function tree;

fLanguage

English

Publisher

ieee

Conference_Titel

Mobile, Ubiquitous, and Intelligent Computing (MUSIC), 2012 Third FTRA International Conference on

Conference_Location

Vancouver, BC

Print_ISBN

978-1-4673-1956-0

Type

conf

DOI

10.1109/MUSIC.2012.25

Filename

6305832