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Proximity-based social applications let users interact with people that are currently close to them, by revealing some information about their preferences and whereabouts. This information is acquired through passive geo-localisation and…

密码学与安全 · 计算机科学 2016-05-24 Silvia Puglisi , David Rebollo-Monedero , Jordi Forné

Integrated Sensing and Communications (ISAC) enables trajectory sharing that enhances beamforming, resource allocation, and cooperative perception, yet raises fundamental privacy concerns under the General Data Protection Regulation (GDPR)…

信号处理 · 电气工程与系统科学 2026-04-13 Zexin Fang , Bin Han , Zhuojun Tian , Hans D. Schotten

Subscription privacy of a user has been a historical concern with all the previous generation mobile networks, namely, GSM, UMTS,and LTE. While a little improvement have been achieved in securing the privacy of the long-term identity of a…

密码学与安全 · 计算机科学 2017-08-08 Mohsin Khan , Valtteri Niemi

We outline a contact-tracing strategy based on proximity sensing using mobile devices. We discuss what an ideal system should look like and what it can do. We show that, when adopted sufficiently broadly, such a contact-tracing strategy can…

计算机与社会 · 计算机科学 2020-04-28 Ye Xia , Gwendolyn Lee

In this work we propose the design principles behind the development of a smart application utilized by mobile devices in order to control the spread of SARS-CoV-2 coronavirus disease that caused the COVID-19 pandemic. Through the…

Digital contact tracing approaches based on Bluetooth low energy (BLE) have the potential to efficiently contain and delay outbreaks of infectious diseases such as the ongoing SARS-CoV-2 pandemic. In this work we propose a novel machine…

Establishing how a set of learners can provide privacy-preserving federated learning in a fully decentralized (peer-to-peer, no coordinator) manner is an open problem. We propose the first privacy-preserving consensus-based algorithm for…

密码学与安全 · 计算机科学 2022-10-04 Yang Lu , Zhengxin Yu , Neeraj Suri

Coronavirus disease 2019, i.e. COVID-19 has imposed the public health measure of keeping social distancing for preventing mass transmission of COVID-19. For monitoring the social distancing and keeping the trace of transmission, we are…

Traditional Neighbor Discovery (ND) and Secure Neighbor Discovery (SND) are key elements for network functionality. SND is a hard problem, satisfying not only typical security properties (authentication, integrity) but also verification of…

密码学与安全 · 计算机科学 2025-07-09 Ahmed Mohamed Hussain , Panos Papadimitratos

The global outbreak of COVID-19 has led to focus on efforts to manage and mitigate the continued spread of the disease. One of these efforts include the use of contact tracing to identify people who are at-risk of developing the disease…

计算机与社会 · 计算机科学 2020-06-23 Stacy Hobson , Michael Hind , Aleksandra Mojsilovic , Kush R. Varshney

Bluetooth Low Energy (BLE) beacons have been increasingly used in smart city applications, such as location-based and proximity-based services, to enable Internet of Things to interact with people in vicinity or enhance context-awareness.…

密码学与安全 · 计算机科学 2022-09-21 Aldar C-F. Chan , Raymond M. H. Chung

The emergence of social and technological networks has enabled rapid sharing of data and information. This has resulted in significant privacy concerns where private information can be either leaked or inferred from public data. The problem…

数据结构与算法 · 计算机科学 2015-11-20 Fragkiskos Koufogiannis , George Pappas

Contact tracing has existed in various forms for a very long time. With the rise of COVID-19, the concept has become increasingly important to help slow the spread of the virus. One approach to modernizing contact tracing is to introduce…

计算机与社会 · 计算机科学 2025-09-04 Lucas Draper

Technological advancements have significantly transformed communication patterns, introducing a diverse array of online platforms, thereby prompting individuals to use multiple profiles for different domains and objectives. Enhancing the…

密码学与安全 · 计算机科学 2024-07-08 Shahar Somin , Keeley Erhardt , Alex 'Sandy' Pentland

An important aspect of crowd monitoring is knowing how many people we are dealing with. Sometimes, knowing the size of a crowd in a single location and at a specific moment is enough. Matters become problematic when counting the same people…

密码学与安全 · 计算机科学 2026-04-17 Fatemeh Marzani , Thijs van Ede , Geert Heijenk , Maarten van Steen

The recent outbreak of COVID-19 has taken the world by surprise, forcing lockdowns and straining public health care systems. COVID-19 is known to be a highly infectious virus, and infected individuals do not initially exhibit symptoms,…

Contact tracing has been considered as an effective measure to limit the transmission of infectious disease such as COVID-19. Trajectory-based contact tracing compares the trajectories of users with the patients, and allows the tracing of…

数据库 · 计算机科学 2023-03-07 Maocheng Li , Yuxiang Zeng , Libin Zheng , Lei Chen , Qing Li

This document presents an evolution of the ROBERT protocol that decentralizes most of its operations on the mobile devices. DESIRE is based on the same architecture than ROBERT but implements major privacy improvements. In particular, it…

The latest pandemic COVID-19 brought governments worldwide to use various containment measures to control its spread, such as contact tracing, social distance regulations, and curfews. Epidemiological simulations are commonly used to assess…

密码学与安全 · 计算机科学 2025-02-26 Daniel Günther , Marco Holz , Benjamin Judkewitz , Helen Möllering , Benny Pinkas , Thomas Schneider , Ajith Suresh

In this demonstration, we present a privacy-preserving epidemic surveillance system. Recently, many countries that suffer from coronavirus crises attempt to access citizen's location data to eliminate the outbreak. However, it raises…

数据库 · 计算机科学 2020-06-09 Yang Cao , Shun Takagi , Yonghui Xiao , Li Xiong , Masatoshi Yoshikawa