Undetectable Communication: The Online Social Networks Case

Online Social Networks (OSNs) provide users with an easy way to share content, communicate, and update others about their activities. They also play an increasingly fundamental role in coordinating and amplifying grassroots movements, as demonstrated by recent uprisings in, e.g., Egypt, Tunisia, and...

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Main Authors: Beato, F, Cristofaro, E, Rasmussen, K
Format: Conference item
Published: 2014
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author Beato, F
Cristofaro, E
Rasmussen, K
author_facet Beato, F
Cristofaro, E
Rasmussen, K
author_sort Beato, F
collection OXFORD
description Online Social Networks (OSNs) provide users with an easy way to share content, communicate, and update others about their activities. They also play an increasingly fundamental role in coordinating and amplifying grassroots movements, as demonstrated by recent uprisings in, e.g., Egypt, Tunisia, and Turkey. At the same time, OSNs have become primary targets of tracking, profiling, as well as censorship and surveillance. In this paper, we explore the notion of undetectable communication in OSNs and introduce formal definitions, alongside system and adversarial models, that complement better understood notions of anonymity and confidentiality. We present a novel scheme for secure covert information sharing that, to the best of our knowledge, is the first to achieve undetectable communication in OSNs. We demonstrate, via an open-source prototype, that additional costs are tolerably low.
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spelling oxford-uuid:b8037597-4c2f-4c8f-8c3d-6bf3085363352022-03-27T04:52:57ZUndetectable Communication: The Online Social Networks CaseConference itemhttp://purl.org/coar/resource_type/c_5794uuid:b8037597-4c2f-4c8f-8c3d-6bf308536335Department of Computer Science2014Beato, FCristofaro, ERasmussen, KOnline Social Networks (OSNs) provide users with an easy way to share content, communicate, and update others about their activities. They also play an increasingly fundamental role in coordinating and amplifying grassroots movements, as demonstrated by recent uprisings in, e.g., Egypt, Tunisia, and Turkey. At the same time, OSNs have become primary targets of tracking, profiling, as well as censorship and surveillance. In this paper, we explore the notion of undetectable communication in OSNs and introduce formal definitions, alongside system and adversarial models, that complement better understood notions of anonymity and confidentiality. We present a novel scheme for secure covert information sharing that, to the best of our knowledge, is the first to achieve undetectable communication in OSNs. We demonstrate, via an open-source prototype, that additional costs are tolerably low.
spellingShingle Beato, F
Cristofaro, E
Rasmussen, K
Undetectable Communication: The Online Social Networks Case
title Undetectable Communication: The Online Social Networks Case
title_full Undetectable Communication: The Online Social Networks Case
title_fullStr Undetectable Communication: The Online Social Networks Case
title_full_unstemmed Undetectable Communication: The Online Social Networks Case
title_short Undetectable Communication: The Online Social Networks Case
title_sort undetectable communication the online social networks case
work_keys_str_mv AT beatof undetectablecommunicationtheonlinesocialnetworkscase
AT cristofaroe undetectablecommunicationtheonlinesocialnetworkscase
AT rasmussenk undetectablecommunicationtheonlinesocialnetworkscase