1. 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

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

3. 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!

4. 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.

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

6. 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

8. 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.

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

13. Experimental Design Setup 1x1 Model

15. 4x1 Model

17. 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.

18. Thank You For Your time! Questions?