Publication
Collaborative Location Privacy
Publications associées (38)
Protecting privacy through metadata analysis
Although encryption hides the content of communications from third parties, metadata, i.e., the information attached to the content (such as the size or timing of communication) can be a rich source of details and context. In this dissertation, we demonstr ...
EPFL2022Flying in Private Mode: Understanding and Improving the Privacy ICAO Address Program
Location privacy of aircraft has recently gained attention as air traffic management was modernized using novel surveillance technologies. Business aviation circles and various military and government entities voiced serious concerns about automated and ub ...
AMER INST AERONAUTICS ASTRONAUTICS2021Interdependent and Multi-Subject Privacy: Threats, Analysis and Protection
In Alan Westin's generally accepted definition of privacy, he describes it as an individual's right 'to control, edit, manage, and delete information about them[selves] and decide when, how, and to what extent information is communicated to others.' There ...
EPFL2019Privacy-Enhancing Technologies for Mobile Applications and Services
Over a third of the world's population owns a smartphone. As generic computing devices that support a large and heterogeneous collection of mobile applications (apps), smartphones provide a plethora of functionalities and services to billions of users. B ...
EPFL2019On (The Lack Of) Location Privacy in Crowdsourcing Applications
Mathias Jacques Jean-Marc Humbert, Carmela González Troncoso
Crowdsourcing enables application developers to benefit from large and diverse datasets at a low cost. Specifically, mobile crowdsourcing (MCS) leverages users' devices as sensors to perform geo-located data collection. The collection of geo-located data r ...
USENIX ASSOC2019Tagvisor: A Privacy Advisor for Sharing Hashtags
Mathias Jacques Jean-Marc Humbert
Hashtag has emerged as a widely used concept of popular culture and campaigns, but its implications on people's privacy have not been investigated so far. In this paper, we present the first systematic analysis of privacy issues induced by hashtags. We con ...
ASSOC COMPUTING MACHINERY2018Quantifying Interdependent Privacy Risks with Location Data
Jean-Pierre Hubaux, Mathias Jacques Jean-Marc Humbert, Kévin Clément Huguenin, Reza Shokri, Alexandra-Mihaela Olteanu
Co-location information about users is increasingly available online. For instance, mobile users more and more frequently report their co-locations with other users in the messages and in the pictures they post on social networking websites by tagging the ...
Ieee Computer Soc2017On the Privacy Implications of Location Semantics
Jean-Pierre Hubaux, Kévin Clément Huguenin, Urs Beda Hengartner
Mobile users increasingly make use of location-based online services enabled by localization systems. Not only do they share their locations to obtain contextual services in return (e.g., 'nearest restaurant'), but they also share, with their friends, info ...
2016Context and Semantic Aware Location Privacy
With ever-increasing computational power, and improved sensing and communication capabilities, smart devices have altered and enhanced the way we process, perceive and interact with information. Personal and contextual data is tracked and stored extensivel ...
EPFL2016A Heuristic Algorithm for Mobility-aware Location Obfuscation
Karl Aberer, Iris Safaka, Berker Agir, Malik Beytrison
Mobile users not only use on-demand location-based services increasingly (e.g., checking in on online social networks), but also other mobile applications that provide a service based on location traces of users (e.g., fitness tracking, health monitoring, ...
2016