Feedback based adaptive segmentation: a framework for censorship circumvention

Asim Ali, Chuntao Li

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Internet censorship has evolved from static keyword blocking to
dynamic, adaptive deep packet inspection (DPI) and machine learning-based
filtering, capable of adapting to protocol obfuscation in near real time. Traditional circumvention tools, such as VPNs and Tor, often fail in these
situations. We propose an adaptive, feedback-driven packet manipulation
framework that dynamically selects and switches circumvention strategies in
real time. Our system integrates multi-signal censorship detection, a decision
engine optimized using a multi-armed bandit, and a pluggable segmentation
subsystem that supports multiple sharding strategies. New features include a pivot scheduling scheme with failover and cooldown periods to prevent oscillation, and a comprehensive benchmarking framework for recovery time, adaptation frequency, and throughput stability. In experiments conducted at
CensorLab, our Segmenters achieved an 83% circumvention success rate and maintained throughput under high load, outperforming both fixed and random
segmentation baselines. These results demonstrate that feedback-driven multi- strategy adaptation offers a promising path to resilient censorship
circumvention in the face of an evolving threat landscape.
Original languageEnglish
Title of host publicationProceedings of the International Conference on Smart Technologies and Reliable Systems (SmartRS25)
PublisherSpringer Nature
Publication statusAccepted for publication - 28 Oct 2025
EventInternational Conference on Smart Technologies and Reliable Systems: SmarTRS 2025 - Najran, Saudi Arabia
Duration: 28 Oct 202529 Oct 2025
https://smartrs.net/

Publication series

NameLecture Notes on Data Engineering and Communications Technologies
PublisherSpringer Nature
ISSN (Print)2367-4512
ISSN (Electronic)2367-4520

Conference

ConferenceInternational Conference on Smart Technologies and Reliable Systems
Country/TerritorySaudi Arabia
CityNajran
Period28/10/2529/10/25
Internet address

Keywords

  • Censorship circumvention
  • Packet segmentation
  • Feedback-driven evasion
  • Traffic Shaping
  • Network resillience

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