Crowds: anonymity for Web transactions
ACM Transactions on Information and System Security (TISSEC)
The Byzantine Generals Problem
ACM Transactions on Programming Languages and Systems (TOPLAS)
Untraceable electronic mail, return addresses, and digital pseudonyms
Communications of the ACM
Tarzan: a peer-to-peer anonymizing network layer
Proceedings of the 9th ACM conference on Computer and communications security
Introducing MorphMix: peer-to-peer based anonymous Internet usage with collusion detection
Proceedings of the 2002 ACM workshop on Privacy in the Electronic Society
Proceedings of the First International Workshop on Information Hiding
Real World Patterns of Failure in Anonymity Systems
IHW '01 Proceedings of the 4th International Workshop on Information Hiding
k-anonymity: a model for protecting privacy
International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems
P5: A Protocol for Scalable Anonymous Communication
SP '02 Proceedings of the 2002 IEEE Symposium on Security and Privacy
k-anonymous message transmission
Proceedings of the 10th ACM conference on Computer and communications security
The predecessor attack: An analysis of a threat to anonymous communications systems
ACM Transactions on Information and System Security (TISSEC)
Defending against eclipse attacks on overlay networks
Proceedings of the 11th workshop on ACM SIGOPS European workshop
Tor: the second-generation onion router
SSYM'04 Proceedings of the 13th conference on USENIX Security Symposium - Volume 13
HOTSEC'08 Proceedings of the 3rd conference on Hot topics in security
Towards an information theoretic metric for anonymity
PET'02 Proceedings of the 2nd international conference on Privacy enhancing technologies
PET'02 Proceedings of the 2nd international conference on Privacy enhancing technologies
Imagined communities: awareness, information sharing, and privacy on the facebook
PET'06 Proceedings of the 6th international conference on Privacy Enhancing Technologies
Privacy-preserving P2P data sharing with OneSwarm
Proceedings of the ACM SIGCOMM 2010 conference
Strange bedfellows: community identification in bittorrent
IPTPS'10 Proceedings of the 9th international conference on Peer-to-peer systems
Distribution of digital games via BitTorrent
Proceedings of the 15th International Academic MindTrek Conference: Envisioning Future Media Environments
Patterns in the distribution of digital games via BitTorrent
International Journal of Advanced Media and Communication
Hang with your buddies to resist intersection attacks
Proceedings of the 2013 ACM SIGSAC conference on Computer & communications security
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We present BitBlender, an efficient protocol that provides an anonymity layer for BitTorrent traffic. BitBlender works by creating an ad-hoc multi-hop network consisting of special peers called "relay peers" that proxy requests and replies on behalf of other peers. To understand the effect of introducing relay peers into the BitTorrent system architecture, we provide an analysis of the expected path lengths as the ratio of relay peers to normal peers varies. A prototype is implemented and experiments are conducted on Planetlab to quantify the performance overhead associated with the protocol. We also propose protocol extensions to add confidentiality and access control mechanisms, countermeasures against traffic analysis attacks, and selective caching policies that simultaneously increase both anonymity and performance. We finally discuss the potential legal obstacles to deploying an anonymous file sharing protocol. This work is among the first to propose a privacy enhancing system that is designed specifically for a particular class of peer-to-peer traffic.