Flexible update propagation for weakly consistent replication
Proceedings of the sixteenth ACM symposium on Operating systems principles
Untraceable electronic mail, return addresses, and digital pseudonyms
Communications of the ACM
A Lightweight, Robust P2P System to Handle Flash Crowds
ICNP '02 Proceedings of the 10th IEEE International Conference on Network Protocols
Tor: the second-generation onion router
SSYM'04 Proceedings of the 13th conference on USENIX Security Symposium - Volume 13
SpiderCast: a scalable interest-aware overlay for topic-based pub/sub communication
Proceedings of the 2007 inaugural international conference on Distributed event-based systems
Brahms: Byzantine resilient random membership sampling
Computer Networks: The International Journal of Computer and Telecommunications Networking
Membership-concealing overlay networks
Proceedings of the 16th ACM conference on Computer and communications security
WHISPER: Middleware for Confidential Communication in Large-Scale Networks
ICDCS '11 Proceedings of the 2011 31st International Conference on Distributed Computing Systems
Safe and private data sharing with turtle: friends team-up and beat the system
SP'04 Proceedings of the 12th international conference on Security Protocols
Epidemic-Style management of semantic overlays for content-based searching
Euro-Par'05 Proceedings of the 11th international Euro-Par conference on Parallel Processing
Robust Overlays for Privacy-Preserving Data Dissemination over a Social Graph
ICDCS '12 Proceedings of the 2012 IEEE 32nd International Conference on Distributed Computing Systems
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Millions of people use the Internet today for data exchange of sensitive information. A typical exchange usually occurs within the context of a group of users and often takes place in a centrally managed infrastructure such as Facebook. Evidence has shown that such systems are unable to properly protect the privacy of its users. Following this observation, we present a framework to support privacy-preserving group communication. Our framework is completely decentralized and leverages the social relationships between users to bootstrap a communication overlay whose robustness is improved with the addition of extra privacy-preserving links. The framework supports multiple groups in a scalable manner and defines mechanisms to handle churn in group membership. Finally, we also outline high-level protocols for a privacy-preserving micro-news application.