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Anonymity networks are providing practical mechanisms to protect its users against censorship by hiding their identity and information content. The best-known anonymity network, The Onion Routing (Tor) network, is however subject to…

Cryptography and Security · Computer Science 2019-07-09 Anna Engelmann , Admela Jukan

The clustering algorithm plays a crucial role in speaker diarization systems. However, traditional clustering algorithms suffer from the complex distribution of speaker embeddings and lack of digging potential relationships between speakers…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-27 Jie Wang , Zhicong Chen , Haodong Zhou , Lin Li , Qingyang Hong

The Internet is composed of Autonomous Systems (ASes) or domains, i.e., networks belonging to different administrative entities. Routing between domains/ASes is realised in a distributed way, over the Border Gateway Protocol (BGP). Despite…

Networking and Internet Architecture · Computer Science 2017-06-27 Pavlos Sermpezis , Xenofontas Dimitropoulos

Stream-based communication dominates today's Internet, posing unique challenges for anonymous communication networks (ACNs). Traditionally designed for independent messages, ACNs struggle to account for the inherent vulnerabilities of…

Cryptography and Security · Computer Science 2025-04-22 Christoph Döpmann , Maximilian Weisenseel , Florian Tschorsch

Generative AI is an invaluable tool, however, in some parts of the world, this technology is censored due to political or societal issues. In this work, we monitor Generative AI censorship through the DNS protocol. We find China to be a…

Computers and Society · Computer Science 2024-12-20 Harel Berger , Yuval Shavitt

Large Language Models (LLMs) are increasingly deployed in sensitive domains including healthcare, legal services, and confidential communications, where privacy is paramount. This paper introduces Whisper Leak, a side-channel attack that…

Cryptography and Security · Computer Science 2025-11-06 Geoff McDonald , Jonathan Bar Or

The last decade has witnessed a surge in the interaction of people through social networking platforms. While there are several positive aspects of these social platforms, the proliferation has led them to become the breeding ground for…

Computation and Language · Computer Science 2022-05-05 Souvic Chakraborty , Parag Dutta , Sumegh Roychowdhury , Animesh Mukherjee

The security of the Internet's routing infrastructure has underpinned much of the past two decades of distributed systems security research. However, the converse is increasingly true. Routing and path decisions are now important for the…

Cryptography and Security · Computer Science 2020-01-27 Jared M. Smith , Kyle Birkeland , Tyler McDaniel , Max Schuchard

An increasing number of countries implement Internet censorship at different scales and for a variety of reasons. In particular, the link between the censored client and entry point to the uncensored network is a frequent target of…

Cryptography and Security · Computer Science 2016-08-01 Sheharbano Khattak , Laurent Simon , Steven J. Murdoch

BGP route leaks frequently precipitate serious disruptions to interdomain routing. These incidents have plagued the Internet for decades while deployment and usability issues cripple efforts to mitigate the problem. Peerlock, introduced in…

Networking and Internet Architecture · Computer Science 2020-11-18 Tyler McDaniel , Jared M. Smith , Max Schuchard

Deep packet inspection technology became a cornerstone of Internet censorship by facilitating cheap and effective filtering of what censors consider undesired information. Moreover, filtering is not limited to simple pattern matching but…

Cryptography and Security · Computer Science 2013-05-15 Philipp Winter , Tobias Pulls , Juergen Fuss

Botnets represent a global problem and are responsible for causing large financial and operational damage to their victims. They are implemented with evasion in mind, and aim at hiding their architecture and authors, making them difficult…

Cryptography and Security · Computer Science 2014-11-03 Pedro Camelo , Joao Moura , Ludwig Krippahl

Detecting and localizing leakages is a significant challenge for the efficient and sustainable management of water distribution networks (WDN). Leveraging the inherent graph structure of WDNs, recent approaches have used graph-based…

Machine Learning · Computer Science 2024-08-07 Zepeng Zhang , Olga Fink

This paper presents a study of the Internet infrastructure in India from the point of view of censorship. First, we show that the current state of affairs---where each ISP implements its own content filters (nominally as per a governmental…

Cryptography and Security · Computer Science 2018-06-19 Devashish Gosain , Anshika Agarwal , Sahil Shekhawat , H. B. Acharya , S. Chakravarty

BGP is the de-facto Internet routing protocol for exchanging prefix reachability information between Autonomous Systems (AS). It is a dynamic, distributed, path-vector protocol that enables rich expressions of network policies (typically…

Networking and Internet Architecture · Computer Science 2019-05-13 Pavlos Sermpezis , Vasileios Kotronis

The InterPlanetary File System (IPFS) has been successfully established as the de facto standard for decentralized data storage in the emerging Web3. Despite its decentralized nature, IPFS nodes, as well as IPFS content providers, have…

Cryptography and Security · Computer Science 2025-09-09 Jan Matter , Muoi Tran

Online social media platforms increasingly rely on Natural Language Processing (NLP) techniques to detect abusive content at scale in order to mitigate the harms it causes to their users. However, these techniques suffer from various…

Computation and Language · Computer Science 2021-10-01 Sayan Ghosh , Dylan Baker , David Jurgens , Vinodkumar Prabhakaran

Social media is an area where users often experience censorship through a variety of means such as the restriction of search terms or active and retroactive deletion of messages. In this paper we examine the feasibility of automatically…

Social and Information Networks · Computer Science 2014-02-28 Donn Morrison

The ability of Natural Language Processing (NLP) methods to categorize text into multiple classes has motivated their use in online content moderation tasks, such as hate speech and fake news detection. However, there is limited…

Computation and Language · Computer Science 2025-03-11 Neemesh Yadav , Jiarui Liu , Francesco Ortu , Roya Ensafi , Zhijing Jin , Rada Mihalcea

Domain probe lists--used to determine which URLs to probe for Web censorship--play a critical role in Internet censorship measurement studies. Indeed, the size and accuracy of the domain probe list limits the set of censored pages that can…

Cryptography and Security · Computer Science 2024-07-12 Jenny Tang , Leo Alvarez , Arjun Brar , Nguyen Phong Hoang , Nicolas Christin