NetShuffle: Circumventing Censorship with Shuffle Proxies at the Edge
Patrick Tser Jern Kon, Aniket Gattani, Dhiraj Saharia, Tianyu Cao, Diogo Barradas, Ang Chen
IEEE Symposium on Security and Privacy 2024 · Day 3 · Continental Ballroom 6
In an era where digital censorship affects over half the world's population, the talk "NetShuffle: Circumventing Censorship with Shuffle Proxies at the Edge" introduces a novel, robust system designed to enhance global internet freedom. Presented by Patrick Tser Jern Kon from the University of Michigan, alongside advisor Ang Chen and collaborators from various institutions, NetShuffle addresses the persistent challenge of nation-state censorship by leveraging a previously underutilized resource: **Edge networks**. The core innovation lies in dynamically shuffling the IP-to-service mappings within these networks, making it significantly harder for censors to identify and block circumvention proxies without incurring substantial **collateral damage**.
AI review
This research introduces NetShuffle, a highly novel and robust system that re-architects censorship circumvention by leveraging Edge networks. Its dynamic IP-to-service shuffling mechanism effectively raises the cost of censorship for nation-states, making fine-grained blocking economically unfeasible. The technical solutions for network asynchrony and IP compaction, deployed on programmable hardware, demonstrate real ingenuity and practical viability.