Optical Networks & Smart Grid Lab. Countering Attackers In Software Defined Radio Networks using Moving Target Defense Isaac Cushman Advisor: Dr. Rami Haddad Department of Electrical Engineering Georgia Southern University

Outline Purpose & Motivation Problem Statement Background Results Conclusion Q & A

Purpose & Motivation Wireless communication is quickly becoming the primary source of data transmission. Network providers are in charge of maintaining very sensitive data stored by their customers. Reality: There is no perfectly secure network system!

Problem Statement Transmission of sensitive data is primarily in danger of being taken from eavesdropping attacks. If it is possible to split the data into multiple pieces and scramble the transmission, then an attacker may only obtain a small fragment and/or not be able to piece it back together.

Background Key Components: Moving Target Defense Software Defined Networks Cloud Database Connectivity

Moving Target Defense MTD is the process of making the attack surface more complex, increasing difficulty for the attacker. Primary strategies: IP address Hopping Port Hopping Frequency Hopping

Software Defined Networks Composed of programmable radios to transmit and receive data. Operate on multiple frequencies within a specific band. Use cloud based synchronization to hop from one frequency to another.

Results Goal: Determine probability of successful eavesdrop attack at varying switching time intervals.

Experimental Design Setup 1x1 Model

4x1 Model

Conclusion The effects of a minimal switching time result in lost packets for users. The probably of sniffed packet when split among four transmitters set at 40 second interval decreases from 14-11% (Max and Min) Further experimentation needed to asses burst packet loss.

Thank You For Your time! Questions?