Sciweavers

Share
IJNSEC
2006

Physical Security Perimeters for Wireless Local Area Networks

10 years 10 months ago
Physical Security Perimeters for Wireless Local Area Networks
On a wired network, physical authentication is implicitly provided by access: if a user is able to plug a cable into a network socket, he must have cleared other security checks such as the receptionist and/or locked doors. In the case of a wireless local area network (WLAN), the signal propagation is not limited by a fixed boundary, and unauthorized access from outside the security perimeter is possible, and in many instances facile. In this paper, we present a probabilistic technique for localization of users in a WLAN. The presented technique is able to identify intruders based on their location, and thus successfully defend a "parking lot" attack. The approach relies on a probabilistic mapping from received signal strength (RSSI) to location. Calibration inside and around the security perimeter must precede the localization phase. During the localization phase, the RSSI of all the WLAN users is measured by multiple monitoring stations positioned to provide an overlapping...
Vishal Bhargava, Mihail L. Sichitiu
Added 12 Dec 2010
Updated 12 Dec 2010
Type Journal
Year 2006
Where IJNSEC
Authors Vishal Bhargava, Mihail L. Sichitiu
Comments (0)
books