English

De-anonymisation attacks on Tor: A Survey

Cryptography and Security 2022-01-27 v3

Abstract

Anonymity networks are becoming increasingly popular in today's online world as more users attempt to safeguard their online privacy. Tor is currently the most popular anonymity network in use and provides anonymity to both users and services (hidden services). However, the anonymity provided by Tor is also being misused in various ways. Hosting illegal sites for selling drugs, hosting command and control servers for botnets, and distributing censored content are but a few such examples. As a result, various parties, including governments and law enforcement agencies, are interested in attacks that assist in de-anonymising the Tor network, disrupting its operations, and bypassing its censorship circumvention mechanisms. In this survey paper, we review known Tor attacks and identify current techniques for the de-anonymisation of Tor users and hidden services. We discuss these techniques and analyse the practicality of their execution method. We conclude by discussing improvements to the Tor framework that help prevent the surveyed de-anonymisation attacks.

Keywords

Cite

@article{arxiv.2009.13018,
  title  = {De-anonymisation attacks on Tor: A Survey},
  author = {Ishan Karunanayake and Nadeem Ahmed and Robert Malaney and Rafiqul Islam and Sanjay Jha},
  journal= {arXiv preprint arXiv:2009.13018},
  year   = {2022}
}

Comments

This work is published in IEEE Communications Surveys & Tutorials and is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/. Link to the article https://ieeexplore.ieee.org/abstract/document/9471821

R2 v1 2026-06-23T18:49:59.056Z