"Substantiating Wireless Security Threats Using Outliers" by Dr. Vallipuram Muthukkumarasamy

Date: December 8, 2008
Time: 11:00 am – 12:30 pm

Where: Loeffler Room (BSB 3.03.02)

"Substantiating Wireless Security Threats Using Outliers"
by Dr. Vallipuram Muthukkumarasamy (Griffith University, Australia)


Wireless networks are being used increasingly in industrial, health care, public-safety and business environments. In such applications, security becomes paramount important as any successful attack may have serious implications for the users. The inherent nature of wireless medium and the dynamic behaviour of nodes increase the challenges of securing wireless networks. Intrusion detection is one of the main mechanisms used to detect the ever increasing threats. Effective intrusion detection technique needs to trigger all intrusions while reducing the false positives.

In a dynamic wireless environment changes are inevitable. Thus, allowing legitimate variations and only raising alarms for actual security threats is the real challenge. We propose a technique to detect security threats using timing and behaviour anomalies. Then, an effective substantiation mechanism is deployed to validate the threats. Depending on the type of application, the sensitivity level of the validation mechanism can be adjusted. The experimental results and analysis will be discussed in the presentation. The proposed substantiation mechanism may be used in a number of other applications as well.