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Location privacy is critical in vehicular networks, where drivers' trajectories and personal information can be exposed, allowing adversaries to launch data and physical attacks that threaten drivers' safety and personal security. This…

密码学与安全 · 计算机科学 2025-01-09 Baihe Ma , Xu Wang , Xiaojie Lin , Yanna Jiang , Caijun Sun , Zhe Wang , Guangsheng Yu , Suirui Zhu , Ying He , Wei Ni , Ren Ping Liu

Trilateration is one of the well-known threat models to the user's location privacy in location-based apps, especially those contain highly sensitive information such as dating apps. The threat model mainly bases on the publicly shown…

计算机与社会 · 计算机科学 2016-04-29 Nguyen Phong Hoang , Yasuhito Asano , Masatoshi Yoshikawa

The exposure of location data constitutes a significant privacy risk to users as it can lead to de-anonymization, the inference of sensitive information, and even physical threats. In this paper we present LPAuditor, a tool that conducts a…

计算机与社会 · 计算机科学 2019-01-07 Kostas Drakonakis , Panagiotis Ilia , Sotiris Ioannidis , Jason Polakis

While becoming more and more present in our every day lives, services that operate on users' locations or location trajectories suffer from general fear of misappropriation of the transmitted location data. Several works have investigated…

密码学与安全 · 计算机科学 2018-04-27 Michael Guldner , Torsten Spieldenner , René Schubotz

In recent years, the widespread of mobile devices equipped with GPS and communication chips has led to the growing use of location-based services (LBS) in which a user receives a service based on his current location. The disclosure of…

密码学与安全 · 计算机科学 2020-02-25 Alireza Partovi , Wei Zheng , Taeho Jung , Hai Lin

Mobile location-based services (LBSs) empowered by mobile crowdsourcing provide users with context-aware intelligent services based on user locations. As smartphones are capable of collecting and disseminating massive user location-embedded…

网络与互联网体系结构 · 计算机科学 2018-08-06 Fang-Jing Wu , Matthias R. Brust , Yan-Ann Chen , Tie Luo

There is a growing need for spatial privacy considerations in the many geo-spatial technologies that have been created as solutions for COVID-19-related issues. Although effective geo-spatial technologies have already been rolled out, most…

密码学与安全 · 计算机科学 2021-01-08 Rohan Iyer , Regina Rex , Kevin P. McPherson , Darshan Gandhi , Aryan Mahindra , Abhishek Singh , Ramesh Raskar

Geo-obfuscation is a Location Privacy Protection Mechanism used in location-based services that allows users to report obfuscated locations instead of exact ones. A formal privacy criterion, geoindistinguishability (Geo-Ind), requires real…

密码学与安全 · 计算机科学 2024-09-17 Sourabh Yadav , Chenyang Yu , Xinpeng Xie , Yan Huang , Chenxi Qiu

Location-based services are increasingly used in our daily activities. In current services, users however have to give up their location privacy in order to acquire the service. The literature features a large number of contributions which…

密码学与安全 · 计算机科学 2014-04-21 Jens Mathias Bohli , Dan Dobre , Ghassan O. Karame , Wenting Li

The advent of numerous indoor location-based services (LBSs) and the widespread use of many types of mobile devices in indoor environments have resulted in generating a massive amount of people's location data. While geo-spatial data…

密码学与安全 · 计算机科学 2022-07-05 Hojjat Navidan , Vahideh Moghtadaiee , Niki Nazaran , Mina Alishahi

Location privacy has been extensively studied in the literature. However, existing location privacy models are either not rigorous or not customizable, which limits the trade-off between privacy and utility in many real-world applications.…

密码学与安全 · 计算机科学 2020-07-16 Yang Cao , Yonghui Xiao , Shun Takagi , Li Xiong , Masatoshi Yoshikawa , Yilin Shen , Jinfei Liu , Hongxia Jin , Xiaofeng Xu

Many popular location-based social networks (LBSNs) support built-in location-based social discovery with hundreds of millions of users around the world. While user (near) realtime geographical information is essential to enable…

社会与信息网络 · 计算机科学 2013-10-11 Muyuan Li , Haojin Zhu , Zhaoyu Gao , Si Chen , Kui Ren , Le Yu , Shangqian Hu

Today, mobile data owners lack consent and control over the release and utilization of their location data. Third party applications continuously process and access location data without data owners granular control and without knowledge of…

密码学与安全 · 计算机科学 2016-07-01 Joshua Joy , Minh Le , Mario Gerla

The W3C's Geolocation API may rapidly standardize the transmission of location information on the Web, but, in dealing with such sensitive information, it also raises serious privacy concerns. We analyze the manner and extent to which the…

计算机与社会 · 计算机科学 2010-03-10 Nick Doty , Deirdre K. Mulligan , Erik Wilde

The growing public nature of academic journals along with current best practices of sharing primary data for scientific research are profoundly valuable for the understanding of a species and their conservation efforts. On the other hand,…

密码学与安全 · 计算机科学 2019-07-17 Hayyu Imanda , Joss Wright

Protecting location privacy in mobile services has recently received significant consideration as Location-Based Service (LBS) can reveal user locations to attackers. A problem in the existing cloaking schemes is that location…

密码学与安全 · 计算机科学 2017-09-13 Hiep H. Nguyen

Location privacy leaks can lead to unauthorised tracking, identity theft, and targeted attacks, compromising personal security and privacy. This study explores LLM-powered location privacy leaks associated with photo sharing on social…

人机交互 · 计算机科学 2025-03-27 Ying Ma , Shiquan Zhang , Dongju Yang , Zhanna Sarsenbayeva , Jarrod Knibbe , Jorge Goncalves

A major feature of the emerging geo-social networks is the ability to notify a user when one of his friends (also called buddies) happens to be geographically in proximity with the user. This proximity service is usually offered by the…

数据库 · 计算机科学 2010-11-09 Sergio Mascetti , Dario Freni , Claudio Bettini , X. Sean Wang , Sushil Jajodia

Radio maps that describe spatial variations in wireless signal strength are widely used to optimize networks and support aerial platforms. Their construction requires location-labeled signal measurements from distributed users, raising…

信号处理 · 电气工程与系统科学 2025-12-10 Jijia Tian , Wangqian Chen , Junting Chen , Pooi-Yuen Kam

We consider the geo-indistinguishability approach to location privacy, and the trade-off with respect to utility. We show that, given a desired degree of geo-indistinguishability, it is possible to construct a mechanism that minimizes the…

密码学与安全 · 计算机科学 2014-08-26 Nicolás E. Bordenabe , Konstantinos Chatzikokolakis , Catuscia Palamidessi