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Related papers: De-anonymisation attacks on Tor: A Survey

200 papers

The Onion Router (Tor) is a controversial network whose utility is constantly under scrutiny. On the one hand, it allows for anonymous interaction and cooperation of users seeking untraceable navigation on the Internet. This freedom also…

Cryptography and Security · Computer Science 2025-04-24 Alfonso Rodriguez Barredo-Valenzuela , Sergio Pastrana Portillo , Guillermo Suarez-Tangil

In this work we show that Tor is vulnerable to app deanonymization attacks on Android devices through network traffic analysis. For this purpose, we describe a general methodology for performing an attack that allows to deanonymize the apps…

Cryptography and Security · Computer Science 2019-01-15 Emanuele Petagna , Giuseppe Laurenza , Claudio Ciccotelli , Leonardo Querzoni

Some BitTorrent users are running BitTorrent on top of Tor to preserve their privacy. In this extended abstract, we discuss three different attacks to reveal the IP address of BitTorrent users on top of Tor. In addition, we exploit the…

Networking and Internet Architecture · Computer Science 2010-04-09 Stevens Le Blond , Pere Manils , Abdelberi Chaabane , Mohamed Ali Kaafar , Arnaud Legout , Claude Castellucia , Walid Dabbous

The Tor anonymity network is difficult to measure because, if not done carefully, measurements could risk the privacy (and potentially the safety) of the network's users. Recent work has proposed the use of differential privacy and secure…

Cryptography and Security · Computer Science 2018-09-25 Akshaya Mani , T Wilson-Brown , Rob Jansen , Aaron Johnson , Micah Sherr

The use of anonymity-based infrastructures and anonymisers is a plausible solution to mitigate privacy problems on the Internet. Tor (short for The onion router) is a popular low-latency anonymity system that can be installed as an end-user…

Cryptography and Security · Computer Science 2012-08-21 Sergio Castillo-Perez , Joaquin Garcia-Alfaro

Tor Onion Services are a way to host websites and other internet services anonymously. Onion Services are often used to bypass internet censorship and provide information services to users in oppressive regimes. This paper presents an…

Cryptography and Security · Computer Science 2023-12-04 Q Misell

Onion services are anonymous network services that are exposed over the Tor network. In contrast to conventional Internet services, onion services are private, generally not indexed by search engines, and use self-certifying domain names…

Cryptography and Security · Computer Science 2018-07-02 Philipp Winter , Anne Edmundson , Laura M. Roberts , Agnieszka Dutkowska-Zuk , Marshini Chetty , Nick Feamster

Darknet technology such as Tor has been used by various threat actors for organising illegal activities and data exfiltration. As such, there is a case for organisations to block such traffic, or to try and identify when it is used and for…

Cryptography and Security · Computer Science 2018-08-06 Hamish Haughey , Gregory Epiphaniou , Haider Al-Khateeb , Ali Dehghantanha

The Tor network is a widely used system for anonymous communication. However, Tor is known to be vulnerable to attackers who can observe traffic at both ends of the communication path. In this paper, we show that prior attacks are just the…

Networking and Internet Architecture · Computer Science 2015-03-16 Yixin Sun , Anne Edmundson , Laurent Vanbever , Oscar Li , Jennifer Rexford , Mung Chiang , Prateek Mittal

The Tor Network has been a significant part of the Internet for years. Tor was originally started in the Naval Research Laboratory for anonymous Internet browsing and Internet-based communication. From being used for anonymous…

Cryptography and Security · Computer Science 2024-09-10 Chaitanya Rahalkar , Anushka Virgaonkar , Kethaki Varadan

Anonymous communication systems are subject to selective denial-of-service (DoS) attacks. Selective DoS attacks lower anonymity as they force paths to be rebuilt multiple times to ensure delivery which increases the opportunity for more…

Cryptography and Security · Computer Science 2015-03-19 Anupam Das , Nikita Borisov

The Tor network provides users with strong anonymity by routing their internet traffic through multiple relays. While Tor encrypts traffic and hides IP addresses, it remains vulnerable to traffic analysis attacks such as the website…

Cryptography and Security · Computer Science 2026-01-06 Yuwen Cui , Guangjing Wang , Khanh Vu , Kai Wei , Kehan Shen , Zhengyuan Jiang , Xiao Han , Ning Wang , Zhuo Lu , Yao Liu

The availability of sophisticated technologies and methods of perpetrating criminogenic activities in the cyberspace is a pertinent societal problem. Darknet is an encrypted network technology that uses the internet infrastructure and can…

Cryptography and Security · Computer Science 2020-03-18 Victor Adewopo , Bilal Gonen , Said Varlioglu , Murat Ozer

Tor is a communications infrastructure widely used for unfettered and anonymous access to Internet websites. Tor is also used to access sites on the .onion virtual domain. The focus of .onion use and discussion has traditionally been on the…

Cryptography and Security · Computer Science 2015-06-15 Paul Syverson , Griffin Boyce

Tor is one of the most well-known networks that protects the identity of both content providers and their clients against any tracking or tracing on the Internet. So far, most research attention has been focused on investigating the…

Social and Information Networks · Computer Science 2019-11-19 Mahdieh Zabihimayvan , Derek Doran

There are not many known ways to break Tor anonymity, and they require an enormous amount of computational power. Controlling both entrance and exit nodes allows an attacker to compromise client IP with enough pattern analysis. If an .onion…

Cryptography and Security · Computer Science 2017-12-13 Stephanie Abraham , Tyler Silva , Robert Decourcy , Jim Cardon

Darknet marketplaces, accessible through, Tor are where users can buy illicit goods, and learn to hide from law enforcement. We surveyed the advice on these markets and found valid security advice mixed up with paranoid threat models and a…

Cryptography and Security · Computer Science 2022-03-17 Andrew C. Dwyer , Joseph Hallett , Claudia Peersman , Matthew Edwards , Brittany I. Davidson , Awais Rashid

The increasing use of encrypted data within file storage and in network communications leaves investigators with many challenges. One of the most challenging is the Tor protocol, as its main focus is to protect the privacy of the user, in…

Cryptography and Security · Computer Science 2019-07-25 Matt Muir , Petra Leimich , William J Buchanan

By choice or by necessity, some contributors to commons-based peer production sites use privacy-protecting services to remain anonymous. As anonymity seekers, users of the Tor network have been cast both as ill-intentioned vandals and as…

Computers and Society · Computer Science 2021-09-06 Kaylea Champion , Nora McDonald , Stephanie Bankes , Joseph Zhang , Rachel Greenstadt , Andrea Forte , Benjamin Mako Hill

Online services that desire to operate anonymously routinely host themselves as 'Hidden Services' in the Tor network. However, these services are frequently threatened by deanonymization attacks, whereby their IP address and location may be…

Cryptography and Security · Computer Science 2024-12-23 Humza Ikram , Rumaisa Habib , Muaz Ali , Zartash Afzal Uzmi