Crowds: anonymity for Web transactions
ACM Transactions on Information and System Security (TISSEC)
Implementing elliptic curve cryptography
Implementing elliptic curve cryptography
Introducing MorphMix: peer-to-peer based anonymous Internet usage with collusion detection
Proceedings of the 2002 ACM workshop on Privacy in the Electronic Society
Kademlia: A Peer-to-Peer Information System Based on the XOR Metric
IPTPS '01 Revised Papers from the First International Workshop on Peer-to-Peer Systems
Introducing Tarzan, a Peer-to-Peer Anonymizing Network Layer
IPTPS '01 Revised Papers from the First International Workshop on Peer-to-Peer Systems
Proceedings of the First International Workshop on Information Hiding
Traffic Analysis Attacks and Trade-Offs in Anonymity Providing Systems
IHW '01 Proceedings of the 4th International Workshop on Information Hiding
Practical Cryptography
Low-Cost Traffic Analysis of Tor
SP '05 Proceedings of the 2005 IEEE Symposium on Security and Privacy
Tracking anonymous peer-to-peer VoIP calls on the internet
Proceedings of the 12th ACM conference on Computer and communications security
SP '06 Proceedings of the 2006 IEEE Symposium on Security and Privacy
AP3: cooperative, decentralized anonymous communication
Proceedings of the 11th workshop on ACM SIGOPS European workshop
SOSIMPLE: A Serverless, Standards-based, P2P SIP Communication System
AAA-IDEA '05 Proceedings of the First International Workshop on Advanced Architectures and Algorithms for Internet Delivery and Applications
Cost-Based Analysis of Hierarchical DHT Design
P2P '06 Proceedings of the Sixth IEEE International Conference on Peer-to-Peer Computing
Salsa: a structured approach to large-scale anonymity
Proceedings of the 13th ACM conference on Computer and communications security
Cashmere: resilient anonymous routing
NSDI'05 Proceedings of the 2nd conference on Symposium on Networked Systems Design & Implementation - Volume 2
Tor: the second-generation onion router
SSYM'04 Proceedings of the 13th conference on USENIX Security Symposium - Volume 13
Proceedings of the 7th ACM SIGCOMM conference on Internet measurement
Denial of service or denial of security?
Proceedings of the 14th ACM conference on Computer and communications security
Don't Clog the Queue! Circuit Clogging and Mitigation in P2P Anonymity Schemes
Financial Cryptography and Data Security
Using game theory to configure P2P SIP
Proceedings of the 3rd International Conference on Principles, Systems and Applications of IP Telecommunications
On the anonymity and traceability of peer-to-peer VoIP calls
IEEE Network: The Magazine of Global Internetworking
Security challenges for peer-to-peer SIP
IEEE Network: The Magazine of Global Internetworking
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In the last few years, there has been a good deal of effort put into the research and standardization of P2P-based VoIP signaling, commonly called P2PSIP. However, there has been one important issue which has not been dealt with adequately, privacy. Specifically i) location privacy, and ii) privacy of social interaction in terms of who is communicating with whom. In this paper, we present Pr2-P2PSIP, a Privacy-Preserving P2PSIP signaling protocol for VoIP and IM. Our contribution is primarily a feasibility study tackling the privacy issues inherent in P2PSIP. We leverage standard security protocols as well as concepts and experiences learned from other anonymization networks such as Tor and I2P where applicable. We present the design and on-going implementation of Pr2-P2PSIP and provide a threat analysis as well as an analysis of the overhead of adding privacy to P2PSIP networks. Particularly we analyze cryptographic overhead, signaling latency and reliability costs.