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Related papers: IP over Voice-over-IP for censorship circumvention

200 papers

A key challenge in censorship-resistant web browsing is being able to direct legitimate users to redirection proxies while preventing censors, posing as insiders, from discovering their addresses and blocking them. We propose a new…

Cryptography and Security · Computer Science 2012-03-12 Qiyan Wang , Xun Gong , Giang T. K. Nguyen , Amir Houmansadr , Nikita Borisov

Since the 1990s, the telephone has been the primary mode of communication. However, Voice over Internet Protocol (VoIP), which is a highly straightforward and affordable form of data transfer, is now becoming an important part of daily…

Cryptography and Security · Computer Science 2025-07-30 M. Matsive Ali

Internet censorship continues to impact billions of people worldwide, and measurement of it remains an important focus of research. However, most Internet censorship measurements have focused solely on the IPv4 Internet infrastructure. Yet,…

Networking and Internet Architecture · Computer Science 2025-08-12 Jack Wampler , Hammas Bin Tanveer , Rishab Nithyanand , Eric Wustrow

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

Internet censorship impacts large segments of the Internet, but so far, prior work has focused almost exclusively on performing measurements using IPv4. As the Internet grows, and more users connect, IPv6 is increasingly supported and…

Networking and Internet Architecture · Computer Science 2025-08-12 Ian Martiny , Hammas Bin Tanveer , Jack Wampler , Rishab Nithyanand , Eric Wustrow

Open communication over the Internet poses a serious threat to countries with repressive regimes, leading them to develop and deploy censorship mechanisms within their networks. Unfortunately, existing censorship circumvention systems do…

Cryptography and Security · Computer Science 2012-12-19 Amir Houmansadr , Wenxuan Zhou , Matthew Caesar , Nikita Borisov

With the increase in Internet censorship globally, various circumvention tools have been designed and developed. However, the monetary cost of these tools deeply impacts both user choice and the sustainability of provider operations. Recent…

Cryptography and Security · Computer Science 2026-03-03 Dayeon Kang , Jade Sheffey , Mingshi Wu , Pubali Datta , Amir Houmansadr

Voice over IP (VoIP) is the technology allowing voice and multimedia transmissions as data packets over a private or a public IP network. Thanks to the benefits that it may provide, the VoIP technology is increasingly attracting attention…

Networking and Internet Architecture · Computer Science 2013-12-10 Amor Lazzez

Censorship and censorship circumvention are closely connected, and each is constantly making decisions in reaction to the other. When censors deploy a new Internet censorship technique, the anti-censorship community scrambles to find and…

Cryptography and Security · Computer Science 2025-01-10 Jade Sheffey , Amir Houmansadr

VoIP (Voice over Internet Protocol) is a growing technology during last decade. It provides the audio, video streaming facility on successful implementation in the network. However, it provides the text transport facility over the network.…

Networking and Internet Architecture · Computer Science 2012-06-11 Kinjal Shah , Satya Prakash Ghrera , Alok Thaker

The current increasing need for privacy-preserving voice communications is leading to new ideas for securing voice transmission. This paper refers to a relatively new concept of sending encrypted data or speech as pseudo-speech in the audio…

Cryptography and Security · Computer Science 2022-02-02 Piotr Krasnowski , Jerome Lebrun , Bruno Martin

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

Voice over IP (VoIP) is an emerging communication service allowing voice transmission over a private or a public IP network. VoIP allows significant benefits for customers and service providers including cost savings, phone and service…

Networking and Internet Architecture · Computer Science 2013-12-11 Amor Lazzez , Thabet Slimani

Untraceable communication is about hiding the identity of the sender or the recipient of a message. Currently most systems used in practice (e.g., TOR) rely on the principle that a message is routed via several relays to obfuscate its path…

Cryptography and Security · Computer Science 2016-10-21 Christian Franck , Uli Sorger

Communication anonymity is a key requirement for individuals under targeted surveillance. Practical anonymous communications also require indistinguishability - an adversary should be unable to distinguish between anonymised and…

Cryptography and Security · Computer Science 2014-08-07 Joseph Gardiner , Shishir Nagaraja

Conventional wireless security assumes wireless communications are rightful and aims to protect them against malicious eavesdropping and jamming attacks. However, emerging infrastructure-free mobile communication networks are likely to be…

Information Theory · Computer Science 2016-12-26 Jie Xu , Lingjie Duan , Rui Zhang

Internet censors often rely on information in the first few packets of a connection to censor unwanted traffic. With the rise of the QUIC transport protocol, prior work has suggested the method of using QUIC connection migration to conceal…

Cryptography and Security · Computer Science 2025-10-15 Seungju Lee , Mona Wang , Watson Jia , Qiang Wu , Henry Birge-Lee , Liang Wang , Prateek Mittal

Voice over Internet Protocol (VoIP) is a technology that allows you to make voice calls using a broadband Internet connection instead of a regular (or analog) phone line. Voice over Internet Protocol (VoIP) has led human speech to a new…

Networking and Internet Architecture · Computer Science 2012-05-15 Yusuf Perwej , Firoj Parwej

Wireless communication is susceptible to adversarial eavesdropping due to the broadcast nature of the wireless medium. In this paper it is shown how eavesdropping can be alleviated by exploiting the superposition property of the wireless…

Information Theory · Computer Science 2016-11-17 Xiaojun Tang , Ruoheng Liu , Predrag Spasojevic , H. Vincent Poor

Undoubtedly, the Internet has become one of the most important conduits to information for the general public. Nonetheless, Internet access can be and has been limited systematically or blocked completely during political events in numerous…

Cryptography and Security · Computer Science 2025-10-22 Yong Zhang , Nishanth Sastry
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