CERIAS Security: Secure Network Coding for Wireless Mesh Networks 3/4
Clip 3/4
Speaker: Cristina Nita-Rotaru · Purdue University
In this talk we identify two general frameworks (inter-flow and intra-flow) that encompass several network coding-based systems proposed in wireless mesh networks. Our systematic analysis of the components of these frameworks reveals vulnerabilities to a wide range of attacks, which may severely degrade system performance. We then focus on addressing the most severe
and generic attack against network coding systems, known as packet pollution attack.
We show that existing cryptographic mechanisms that were proposed to solve the problem have a prohibitive cost that makes them impractical in wireless mesh networks. We propose the first practical defense mechanisms to pollution attacks in network coding for wireless mesh networks. The experimental results show that the proposed mechanisms can effectively filter out polluted packets and quickly identify and isolate attacker nodes while incurring small computation and bandwidth overhead.
For more information go to the CERIAS website (http://bit.ly/dsFCBF)
