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 6 of 6 for “"Unlinkability"”.
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Location Privacy in VANETs: Improved Chaff-Based CMIX and Privacy-Preserving End-to-End Communication
… of vehicle communications and accomplish unlinkability in VANETs. This is achieved by proposing an improved chaff-based CMIX protocol that uses fake messages to increase density to mitigate tracking in this scenario. Recently, Christian \etall \cite{vaas2018nowhere} proposed a Chaff-based …
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Models for Privacy in Ubiquitous Computing Environments
… various semantic models of trust. For the unlinkability of a user's accesses to services in a ubiquitous computing environment, we present a model based on access control and decentralized enforcement of policy constraints. We prove that our solution is secure, and show how security can be …
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Security and Privacy in Unified Communication Architectures with Focus on Online Real-Time Meeting Scheduling and Joining
… that cannot be correlated with participants (unlinkability). The security and privacy of SEPPI are analyzed, and a large-scale systematic user evaluation of a SEPPI prototype is conducted. The findings suggest that SEPPI achieves increased privacy and security at an acceptable cost to …
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Secure protocols for contactless credit cards and electronic wallets
… so we consider the converse property of unlinkability, where a retailer cannot identify different purchases as having been made by the same card. We require that our unlinkable protocol make use of existing infrastructure, so as not to require retailer cooperation. In response, we design …
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A Scalable Blockchain Framework for Verifiable and Private Ranked-Choice Online Voting
… related to privacy and efficiency that weaken unlinkability and verifiability. Building on these findings, the first significant contribution of this thesis is the design of a new, verifiable, and privacy-preserving voting framework that eliminates the need for a trusted tallying authority. The …
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Introducing Privacy in Current Web Search Engines
During the last few years, the technological progress in collecting, storing and processing a large quantity of data for a reasonable cost has raised serious privacy issues. Privacy concerns many areas, but is especially important in frequently used services like search engines (e.g., Google, Bing, …