Crowds: anonymity for Web transactions
ACM Transactions on Information and System Security (TISSEC)
Journal of the ACM (JACM)
Consistent, yet anonymous, Web access with LPWA
Communications of the ACM
A protocol for anonymous communication over the Internet
Proceedings of the 7th ACM conference on Computer and communications security
Untraceable electronic mail, return addresses, and digital pseudonyms
Communications of the ACM
Traffic analysis: protocols, attacks, design issues, and open problems
International workshop on Designing privacy enhancing technologies: design issues in anonymity and unobservability
Freenet: a distributed anonymous information storage and retrieval system
International workshop on Designing privacy enhancing technologies: design issues in anonymity and unobservability
The free haven project: distributed anonymous storage service
International workshop on Designing privacy enhancing technologies: design issues in anonymity and unobservability
A measurement study of Napster and Gnutella as examples of peer-to-peer file sharing systems
ACM SIGCOMM Computer Communication Review
Distributed object location in a dynamic network
Proceedings of the fourteenth annual ACM symposium on Parallel algorithms and architectures
Query-flood DoS attacks in gnutella
Proceedings of the 9th ACM conference on Computer and communications security
Chord: a scalable peer-to-peer lookup protocol for internet applications
IEEE/ACM Transactions on Networking (TON)
Introducing Tarzan, a Peer-to-Peer Anonymizing Network Layer
IPTPS '01 Revised Papers from the First International Workshop on Peer-to-Peer Systems
Traffic Analysis Attacks and Trade-Offs in Anonymity Providing Systems
IHW '01 Proceedings of the 4th International Workshop on Information Hiding
Responder Anonymity and Anonymous Peer-to-Peer File Sharing
ICNP '01 Proceedings of the Ninth International Conference on Network Protocols
Publius: a robust, tamper-evident, censorship-resistant web publishing system
SSYM'00 Proceedings of the 9th conference on USENIX Security Symposium - Volume 9
Tor: the second-generation onion router
SSYM'04 Proceedings of the 13th conference on USENIX Security Symposium - Volume 13
Tapestry: a resilient global-scale overlay for service deployment
IEEE Journal on Selected Areas in Communications
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A critical problem in a Peer-to-Peer file sharing system is how to protect the anonymity of agent nodes when providing efficient data access services. Most of existing technique mostly focus on how to provide the initiator anonymity and privacy, but leave the anonymity of the server. Our technique is similar to Onion routing in that it uses a proxy node to hide the identity of the client and the server. But it differs from it in that the proxy node is selected dynamically for each session and not fixed as in Onion routing. The fixed proxy might be convenient to use and is useful when loaded with additional features such as encryption as in Onion routing. However it is a sort of compromise from P2P point of view: we are introducing something similar to a control center that could become a bottleneck in the network. Temporary proxy doesn't have this problem. And our technique provides caching of a retrieved data item on the reverse path back to the requestor. Caching in our paper is primarily for providing publisher anonymity and security. In this paper, we show a technique to find such proxy and caching, explain the rationale behind the decision, and prove its effectiveness through experimentation.