Home - Topics - Publications - Blog - CV - Photos - Funny

Faceless: Decentralized Anonymous Group Messaging for Online Social Networks

Xiaoxiao Song, David Isaac Wolinsky, and Bryan Ford
Yale University

5th Workshop on Social Network Systems
April 10, 2012

Abstract:

Social networks (SNs) enable physically distributed groups to communicate seamlessly. Unfortunately such communi- cation can be easily mined by adversaries in attempts to breach users’ privacy or suppress open discussion on sensi- tive topics. While anonymous posting can help protect users by hiding the link between individuals and the messages they post, existing anonymization schemes are centralized or vul- nerable to well-known attacks. To offer stronger protection for free speech online, we propose a method for anonymous group communication using SNs called Faceless. Faceless leverages existing Internet-based SNs for convenience in managing groups and users’ public identities, but augments these centralized services with a decentralized anonymous posting overlay offering provable anonymity guarantees, re- sisting even group infiltration and traffic analysis attacks.

Paper: PDF



Topics: Privacy Anonymity Social Networks Bryan Ford