Skip to Main content Skip to Navigation
Conference papers

Defending against Sybil Nodes in BitTorrent

Abstract : BitTorrent and its derivatives contribute a major portion of Internet traffic due to their simple and scalable operation. However, the lack of security mechanisms makes them vulnerable to attacks such as file piece pollution, connection slot consumption, and bandwidth exhaustion. These effects are made worse by the ability of attackers to manufacture new identities, or Sybil nodes, at will. The net effect of Sybil nodes and weak security leads to inefficient BitTorrent operation, or collapse. In this paper, we present defenses against threats from Sybil attackers in BitTorrent. A simple, direct reputation scheme called GOLF fosters peer cooperation to exclude potential attackers. Locality filtering tentatively identifies Sybil nodes based on patterns in IP addresses. Under the proposed scheme, Sybil attackers may still continue malicious behaviors, but their effect sharply decreases. Comparison to existing reputation models shows GOLF effectively detects and blocks potential attackers, despite false accusation.
Complete list of metadata

Cited literature [23 references]  Display  Hide  Download
Contributor : Hal Ifip Connect in order to contact the contributor
Submitted on : Friday, September 29, 2017 - 9:46:56 AM
Last modification on : Tuesday, October 19, 2021 - 12:52:59 PM
Long-term archiving on: : Saturday, December 30, 2017 - 1:01:50 PM


Files produced by the author(s)


Distributed under a Creative Commons Attribution 4.0 International License



Jung Ki So, Douglas S. Reeves. Defending against Sybil Nodes in BitTorrent. 10th IFIP Networking Conference (NETWORKING), May 2011, Valencia, Spain. pp.25-39, ⟨10.1007/978-3-642-20798-3_3⟩. ⟨hal-01597977⟩



Record views


Files downloads