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Related papers: DIMY: Enabling Privacy-preserving Contact Tracing

200 papers

Technology is uniquely positioned to help us analyze large amounts of information to provide valuable insight during widespread public health concerns, like the ongoing COVID-19 pandemic. In fact, information technology companies like Apple…

Computers and Society · Computer Science 2020-06-15 Jayati Dev

Blockchain technology enforces the security, robustness, and traceability of operations of Process-Aware Information Systems (PAISs). In particular, transparency ensures that all data is publicly available, fostering trust among…

Cryptography and Security · Computer Science 2026-04-23 Michele Kryston , Edoardo Marangone , Alessandro Marcelletti , Claudio Di Ciccio

The wide adoption of wearable smart devices with onboard cameras greatly increases people's concern on privacy infringement. Here we explore the possibility of easing persons from photos captured by smart devices according to their privacy…

Cryptography and Security · Computer Science 2014-10-27 Lan Zhang , Kebin Liu , Xiang-Yang Li , Puchun Feng , Cihang Liu , Yunhao Liu

Biometric matching involves storing and processing sensitive user information. Maintaining the privacy of this data is thus a major challenge, and homomorphic encryption offers a possible solution. We propose a privacy-preserving…

Cryptography and Security · Computer Science 2021-11-25 Gaëtan Pradel , Chris Mitchell

Many tracking companies collect user data and sell it to data markets and advertisers. While they claim to protect user privacy by anonymizing the data, our research reveals that significant privacy risks persist even with anonymized data.…

Cryptography and Security · Computer Science 2026-02-12 Ruisheng Shi , Zhiyuan Peng , Tong Fu , Lina Lan , Qin Wang , Jiaqi Zeng

The COVID19 pandemic created a worldwide emergency as it is estimated that such a large number of infections are due to human-to-human transmission of the COVID19. As a necessity, there is a need to track users who came in contact with…

Human-Computer Interaction · Computer Science 2021-06-01 Chandresh Kumar Maurya , Seemandhar Jain , Vishal Thakre

The Bloom filter is a simple yet space-efficient probabilistic data structure that supports membership queries for dramatically large datasets. It is widely utilized and implemented across various industrial scenarios, often handling…

Cryptography and Security · Computer Science 2026-01-26 Yekun Ke , Yingyu Liang , Zhizhou Sha , Zhenmei Shi , Zhao Song , Jiahao Zhang

Differential Privacy (DP) has emerged as a robust framework for privacy-preserving data releases and has been successfully applied in high-profile cases, such as the 2020 US Census. However, in organizational settings, the use of DP remains…

Cryptography and Security · Computer Science 2025-05-13 Nicolas Küchler , Alexander Viand , Hidde Lycklama , Anwar Hithnawi

Under Know Your Customer (KYC) regulations, financial institutions are required to verify the identity and assess the trustworthiness of any new client during on-boarding, and maintain up-to-date records for risk management. These processes…

Cryptography and Security · Computer Science 2020-01-07 Constantin Cătălin Drăgan , Mark Manulis

The recent SARS-CoV-2 pandemic gave rise to management approaches using mobile apps for contact tracing. The corresponding apps track individuals and their interactions, to facilitate alerting users of potential infections well before they…

Cryptography and Security · Computer Science 2020-04-17 Christiane Kuhn , Martin Beck , Thorsten Strufe

The world is under an ongoing pandemic, COVID-19, of a scale last seen a century ago. Contact tracing is one of the most critical and highly effective tools for containing and breaking the chain of infections especially in the case of…

Computers and Society · Computer Science 2022-02-07 Nikolas Gritsch , Benjamin Tegeler , Faheem Hassan Zunjani

The most fundamental purpose of blockchain technology is to enable persistent, consistent, distributed storage of information. Increasingly common are authentication systems that leverage this property to allow users to carry their personal…

Cryptography and Security · Computer Science 2017-10-10 Daniel Augot , Hervé Chabanne , Olivier Clémot , William George

Crypto-assets and central bank digital currencies (CBDCs) are reshaping how value is exchanged in distributed computing environments. These systems combine cryptographic primitives, protocol design, and system architectures to provide…

Cryptography and Security · Computer Science 2026-04-02 Matteo Nardelli , Francesco De Sclavis , Michela Iezzi

Data streams produced by mobile devices, such as smartphones, offer highly valuable sources of information to build ubiquitous services. Such data streams are generally uploaded and centralized to be processed by third parties, potentially…

Data Structures and Algorithms · Computer Science 2025-06-30 Rémy Raes , Olivier Ruas , Adrien Luxey-Bitri , Romain Rouvoy

The Internet of Things (IoT) devices, such as smart speakers can collect sensitive user data, necessitating the need for users to manage their privacy preferences. However, configuring these preferences presents users with multiple…

Cryptography and Security · Computer Science 2024-06-11 Bayan Al Muhander , Omer Rana , Charith Perera

Differential privacy protects an individual's privacy by perturbing data on an aggregated level (DP) or individual level (LDP). We report four online human-subject experiments investigating the effects of using different approaches to…

Cryptography and Security · Computer Science 2020-04-01 Aiping Xiong , Tianhao Wang , Ninghui Li , Somesh Jha

With the advent of the Internet of Things (IoT), e-health has become one of the main topics of research. Due to the sensitivity of patient information, patient privacy seems challenging. Nowadays, patient data is usually stored in the cloud…

Cryptography and Security · Computer Science 2023-04-04 Sajad Meisami , Mohammad Beheshti-Atashgah , Mohammad Reza Aref

How to contain the spread of the COVID-19 virus is a major concern for most countries. As the situation continues to change, various countries are making efforts to reopen their economies by lifting some restrictions and enforcing new…

Computers and Society · Computer Science 2020-12-25 Patrick Ocheja , Yang Cao , Shiyao Ding , Masatoshi Yoshikawa

Identity Management Systems (IdMs) have complemented how users are identified, authenticated, and authorised on e-services. Among the methods used for this purpose are traditional IdMs (isolated, centralised and federated) that mostly rely…

Cryptography and Security · Computer Science 2024-09-06 Abubakar-Sadiq Shehu

The goal of this paper is to shed some light on the usefulness of a contact tracing smartphone app for the containment of the COVID-19 pandemic. We review the basics of contact tracing during the spread of a virus, we contextualize the…

Computers and Society · Computer Science 2020-07-30 Leonardo Maccari , Valeria Cagno