Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 23 for “"Anonymous communication"”.
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Trustworthy and scalable anonymous communication
… we investigate the design of novel approaches to anonymous communication that are scalable, decentralized, and Sybil-resilient. First, we begin by investigating security vulnerabilites in existing P2P anonymity systems, and find fundamental limitations in their designs. Second, we propose novel …
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Anonymous Communication Networks: Usage Analysis and Attack Mechanisms
Privacy in communication has been an essential security requirement with the rapid growth of Internet. This has resulted in growing interest in methods for anonymous communication. Several system designs have been developed with the common aim of preserving communication privacy within the shared …
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A security evaluation of the salsa anonymous communication system
"We evaluate a state of the art P2P anonymous communication system, Salsa. Salsa is based on a distributed hash table, and uses secure lookups to locate relays for anonymous communication. To analyze user anonymity in Salsa, we first build an analytic model for the lookup security in Salsa, and …
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Riffle : an efficient communication system with strong anonymity
Anonymous communication is an important part of democratic societies and freedom of speech. Whistleblowers, protest organizers, and, more broadly, anyone with controversial viewpoints have been using the limited form of anonymity the Internet provides to protect their privacy. Unfortunately, the …
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Holistic confidentiality in open networks
… entities related to the use and deployment of anonymous communication systems and those affected by these networks. To this end, we show characteristics of each entities situation and examine their needs. This does not only refer to requirements directly connected to security but also those …
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Path Selection for Performance- and Security-Improved Onion Routing
… of further improving throughput in low-latency anonymous communication networks through the use of multipath routing is introduced. Practical techniques are presented allowing implementation in current networks without fundamental architectural changes. Analysis of the performance of multipath …
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Bespoke Threat Models: Achieving Realistic Privacy Guarantees for Deployed Protocols
… in two main settings: private advertising and anonymous communication. In doing so, we consider constraints each application may have in practice and what adversarial model is realistic for the context in which the application will be deployed. For real world applications, achieving perfect …
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An Innovative Approach Towards Applying Chaum Mixing to SMS
… there are few user-friendly applications for anonymous communication across multiple platforms, leaving data that is often both personal and private vulnerable to malicious activity. Mobile devices such as smartphones are prime candidates for such an application as they are pervasive and have …
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Network coding for anonymous broadcast
… thesis explores the use of network coding for anonymous broadcast. Network coding, the technique of transmitting or storing mixtures of messages rather than individual messages, can provide anonymity with its mixing nature, efficiently disseminate content in multicast and broadcast networks, …
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T Talk : a local communication channel for subway riders
… community. T Talk is an open, asynchronous, and anonymous communication channel designed specifically for subway riders. T Talk consists of three major components for users participation: a kiosk installed on subway platforms for riders to post new messages and browse/reply to messages left by …
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Machine-aided analysis of vote privacy using computationally complete symbolic attacker
… of the security guarantees and asymmetry of communication over the internet, their design tends to be error-prone. Thus, formal methods are often used to establish whether the protocols actually achieve their guarantees. The analysis can be either carried out in the Dolev-Yao model, where the …
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Adaptive scalable protocols for heterogeneous wireless networks
… and balances load among nodes. - Hierarchical Anonymous Communication Protocol novel protocol that prevents traffic analysis from revealing node information including its location. - Lightweight security protocol to preserve the integrity of messages in a wireless network even in presence of …
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Robust censorship-resistant communication
… malicious parties to degrade users' anonymity in anonymous communication. We propose a new framework for censorship-resistant web browsing called {\it CensorSpoofer} that addresses this challenge by exploiting the asymmetric nature of web browsing traffic and making use of IP spoofing. …
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Protecting anonymity in the presence of autonomous system and internet exchange level adversaries
… to defend against AS and IX-level compromise of anonymous communication paths on the Internet and should be considered for deployment to maintain the privacy guarantees of such systems.
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Computational approaches for democratizing online community governance
… scale, highly fluid user populations, and pseudo-anonymous communication. Although the potential benefits of democratizing online community governance have been broadly argued for in prior work, designing effective governance technologies has remained elusive. As such, this thesis has dual goals. …
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Securing encrypted communication
… in the effort to enhance the security of communication, there are still many open challenges. This dissertation looks at two open problems: providing key transparency in secure messaging apps in an attempt to detect targeted wiretaps, and securing the initial contact for journalists. We …
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Security and Privacy in Unified Communication Architectures with Focus on Online Real-Time Meeting Scheduling and Joining
Use of Unified Communication (UC) technology, including video conferencing, audio conferencing, and instant messaging, significantly increased during the COVID-19 pandemic. It has become essential for digital activism and in broader societal contexts. For example, undetectability, anonymity, and …
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