Counteracting Byzantine Adversaries with Network Coding: An Overhead Analysis

Network coding increases throughput and is robust against failures and erasures. However, since it allows mixing of information within the network, a single corrupted packet generated by a Byzantine attacker can easily contaminate the information to multiple destinations. In this paper, we study the transmission overhead associated with three different schemes for detecting Byzantine adversaries at a node using network coding: end-to-end error correction, packet-based Byzantine detection scheme, and generation-based Byzantine detection scheme. In endto-end error correction, it is known that we can correct up to the min-cut between the source and destinations. However, if we use Byzantine detection schemes, we can detect polluted data, drop them, and therefore, only transmit valid data. For the dropped data, the destinations perform erasure correction, which is computationally lighter than error correction. We show that, with enough attackers present in the network, Byzantine detection ...

• Type: Journal
• Year: 2008
• Where: CORR
• Authors: MinJi Kim, Muriel Médard, João Barros
• Keywords: Byzantine Detection Schemes, CORR 2008, Education, Error Correction, Packet-based Byzantine Detection