12 citations · 42 across the 14 of their papers we have counts for
16 papers
CrossLink: Breaking Location Privacy by Linking Device Identifiers Across Protocols
Aneet Kumar Dutta, Mihirraj Dixit, Kevin Gni +2
Smartphones simultaneously transmit temporary identifiers over LTE, WiFi, and BLE. Existing privacy defenses analyze identifier randomization per protocol, implicitly assuming that…
Understanding the Privacy-Preserving Potential of HTTP/2 Against Webpage Fingerprinting
Bogdan Cebere, Prateek Kumar, Sylvain Chatel +2
Website fingerprinting (WF) attacks can infer which webpage a user visits from encrypted HTTPS traffic alone, compromising privacy even without decryption. WF defenses commonly sha…
xDup: Privacy-Preserving Deduplication for Humanitarian Organizations using Fuzzy PSI
Tim Rausch, Sylvain Chatel, Wouter Lueks
Humanitarian organizations help to ensure people's livelihoods in crisis situations. Typically, multiple organizations operate in the same region. To ensure that the limited budget…
Assessing Age Assurance Technologies: Effectiveness, Side-Effects, and Acceptance
Wouter Lueks, Stephan Dreyer, Hannes Federrath +1
In this paper, we provide an overview and evaluation of different types of age assurance technologies (AAT). We describe and analyse 1) different approaches to age assurance online…
Janus: Safe Biometric Deduplication for Humanitarian Aid Distribution
Kasra EdalatNejad, Wouter Lueks, Justinas Sukaitis +3
Humanitarian organizations provide aid to people in need. To use their limited budget efficiently, their distribution processes must ensure that legitimate recipients cannot receiv…
Not Yet Another Digital ID: Privacy-preserving Humanitarian Aid Distribution
Boya Wang, Wouter Lueks, Justinas Sukaitis +2
Humanitarian aid-distribution programs help bring physical goods to people in need. Traditional paper-based solutions to support aid distribution do not scale to large populations…
Private Collection Matching Protocols
Kasra EdalatNejad, Mathilde Raynal, Wouter Lueks +1
We introduce Private Collection Matching (PCM) problems, in which a client aims to determine whether a collection of sets owned by a server matches their interests. Existing privac…
Preliminary Analysis of Potential Harms in the Luca Tracing System
Theresa Stadler, Wouter Lueks, Katharina Kohls +1
In this document, we analyse the potential harms a large-scale deployment of the Luca system might cause to individuals, venues, and communities. The Luca system is a digital prese…
Towards a common performance and effectiveness terminology for digital proximity tracing applications
Justus Benzler, Dan Bogdanov, Göran Kirchner +7
Digital proximity tracing (DPT) for Sars-CoV-2 pandemic mitigation is a complex intervention with the primary goal to notify app users about possible risk exposures to infected per…
VoteAgain: A scalable coercion-resistant voting system
Wouter Lueks, Iñigo Querejeta-Azurmendi, Carmela Troncoso
The strongest threat model for voting systems considers coercion resistance: protection against coercers that force voters to modify their votes, or to abstain. Existing remote vot…
Decentralized Privacy-Preserving Proximity Tracing
Carmela Troncoso, Mathias Payer, Jean-Pierre Hubaux +31
This document describes and analyzes a system for secure and privacy-preserving proximity tracing at large scale. This system, referred to as DP3T, provides a technological foundat…
DatashareNetwork: A Decentralized Privacy-Preserving Search Engine for Investigative Journalists
Kasra EdalatNejad, Wouter Lueks, Julien Pierre Martin +5
Investigative journalists collect large numbers of digital documents during their investigations. These documents can greatly benefit other journalists' work. However, many of thes…
zksk: A Library for Composable Zero-Knowledge Proofs
Wouter Lueks, Bogdan Kulynych, Jules Fasquelle +2
Zero-knowledge proofs are an essential building block in many privacy-preserving systems. However, implementing these proofs is tedious and error-prone. In this paper, we present z…
Tandem: Securing Keys by Using a Central Server While Preserving Privacy
Wouter Lueks, Brinda Hampiholi, Greg Alpár +1
Users' devices, e.g., smartphones or laptops, are typically incapable of securely storing and processing cryptographic keys. We present Tandem, a novel set of protocols for securin…
ClaimChain: Improving the Security and Privacy of In-band Key Distribution for Messaging
Bogdan Kulynych, Wouter Lueks, Marios Isaakidis +2
The social demand for email end-to-end encryption is barely supported by mainstream service providers. Autocrypt is a new community-driven open specification for e-mail encryption…
How to Evaluate Dimensionality Reduction? - Improving the Co-ranking Matrix
Wouter Lueks, Bassam Mokbel, Michael Biehl +1
The growing number of dimensionality reduction methods available for data visualization has recently inspired the development of quality assessment measures, in order to evaluate t…