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
Tor: the second-generation onion router
SSYM'04 Proceedings of the 13th conference on USENIX Security Symposium - Volume 13
Improving efficiency and simplicity of Tor circuit establishment and hidden services
PET'07 Proceedings of the 7th international conference on Privacy enhancing technologies
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Protecting users' privacy is becoming one of the rising issues for the success of future communications. The Internet in particular, with its open architecture, presents several threats to the right of protecting personal and sensitive data. One fundamental building block of privacy-respectful communications is protecting the communication parties identities, or, as it is commonly called within the research community anonymous networks (ANs). An AN prevents external observers as well as the network to have access to communicating partners identities and addresses. In this paper we propose a novel architecture to realize ANs, as an extension to IPsec. After explaining the rationale and discussing possible alternatives, we present a working prototype implementation and its experimental performance comparison with application level solutions.