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Governments and researchers around the world are implementing digital contact tracing solutions to stem the spread of infectious disease, namely COVID-19. Many of these solutions threaten individual rights and privacy. Our goal is to break…

Cryptography and Security · Computer Science 2020-04-23 Alex Berke , Michiel Bakker , Praneeth Vepakomma , Kent Larson , Alex 'Sandy' Pentland

Contacts between people are the absolute drivers of contagious respiratory infections. For this reason, limiting and tracking contacts is a key strategy for the control of the COVID-19 epidemic. Digital contact tracing has been proposed as…

Computers and Society · Computer Science 2022-12-01 Chiara Boldrini , Andrea Passarella , Marco Conti

Debate about the adoption of digital contact tracing (DCT) apps to control the spread of COVID-19 has focussed on risks to individual privacy (Sharma & Bashir 2020, Tang 2020). This emphasis reveals significant challenges to ethical…

Computers and Society · Computer Science 2020-07-15 Andrew Buzzell

Security and privacy of the Internet Domain Name System (DNS) have been longstanding concerns. Recently, there is a trend to protect DNS traffic using Transport Layer Security (TLS). However, at least two major issues remain: (1) how do…

Cryptography and Security · Computer Science 2019-09-26 Yoshimichi Nakatsuka , Andrew Paverd , Gene Tsudik

The classification service over a stream of data is becoming an important offering for cloud providers, but users may encounter obstacles in providing sensitive data due to privacy concerns. While Trusted Execution Environments (TEEs) are…

Cryptography and Security · Computer Science 2022-03-04 Qifan Wang , Shujie Cui , Lei Zhou , Ocean Wu , Yonghua Zhu , Giovanni Russello

There is an urgent demand for privacy-preserving techniques capable of supporting compute and data intensive (CDI) computing in the era of big data. However, none of existing TEEs can truly support CDI computing tasks, as CDI requires high…

Cryptography and Security · Computer Science 2019-04-15 Jianping Zhu , Rui Hou , XiaoFeng Wang , Wenhao Wang , Jiangfeng Cao , Lutan Zhao , Fengkai Yuan , Peinan Li , Zhongpu Wang , Boyan Zhao , Lixin Zhang , Dan Meng

With the outbreak of COVID-19 pandemic, a dire need to effectively identify the individuals who may have come in close-contact to others who have been infected with COVID-19 has risen. This process of identifying individuals, also termed as…

Autonomous and robotic systems are increasingly being trusted with sensitive activities with potentially serious consequences if that trust is broken. Runtime verification techniques present a natural source of inspiration for monitoring…

Cryptography and Security · Computer Science 2023-10-05 Robert Abela , Christian Colombo , Axel Curmi , Mattea Fenech , Mark Vella , Angelo Ferrando

Many digital solutions mainly involving Bluetooth technology are being proposed for Contact Tracing Apps (CTA) to reduce the spread of COVID-19. Concerns have been raised regarding privacy, consent, uptake required in a given population,…

Computers and Society · Computer Science 2020-05-18 Scott McLachlan , Peter Lucas , Kudakwashe Dube , Graham A Hitman , Magda Osman , Evangelia Kyrimi , Martin Neil , Norman E Fenton

The abundance and rich varieties of data are enabling many transformative applications of big data analytics that have profound societal impacts. However, there are also increasing concerns regarding the improper use of individual data…

Cryptography and Security · Computer Science 2020-07-17 Yang Xiao , Ning Zhang , Jin Li , Wenjing Lou , Y. Thomas Hou

Digital contact tracing is one of the actions useful, in combination with other measures, to manage an epidemic diffusion of an infection disease in an after-lock-down phase. This is a very timely issue, due to the pandemic of COVID-19 we…

Cryptography and Security · Computer Science 2020-05-22 Francesco Buccafurri , Vincenzo De Angelis , Cecilia Labrini

With the introduction of data protection regulations, the need for innovative privacy-preserving approaches to process and analyse sensitive data has become apparent. One approach is the Personal Health Train (PHT) that brings analysis code…

There is growing use of technology-enabled contact tracing, the process of identifying potentially infected COVID-19 patients by notifying all recent contacts of an infected person. Governments, technology companies, and research groups…

Computers and Society · Computer Science 2020-12-18 Lucy Simko , Jack Lucas Chang , Maggie Jiang , Ryan Calo , Franziska Roesner , Tadayoshi Kohno

The coronavirus (COVID-19) has appeared as the greatest challenge due to its continuous structural evolution as well as the absence of proper antidotes for this particular virus. The virus mainly spreads and replicates itself among mass…

Computers and Society · Computer Science 2020-07-07 Md. Tanvir Rahman , Risala T. Khan , Muhammad R. A. Khandaker , Md. Sifat Ar Salan

Contact tracing is of paramount importance when it comes to preventing the spreading of infectious diseases. Contact tracing is usually performed manually by authorized personnel. Manual contact tracing is an inefficient, error-prone,…

Machine Learning · Computer Science 2021-12-22 Pai Chet Ng , Petros Spachos , Konstantinos Plataniotis

The COVID-19 pandemic has caused many countries to deploy novel digital contact tracing (DCT) systems to boost the efficiency of manual tracing of infection chains. In this paper, we systematically analyze DCT solutions and categorize them…

Cryptography and Security · Computer Science 2022-10-27 Thien Duc Nguyen , Markus Miettinen , Alexandra Dmitrienko , Ahmad-Reza Sadeghi , Ivan Visconti

Decentralized smart contracts enable trustless collaboration but suffer from limited privacy and scalability, which hinders broader adoption. Trusted Execution Environment (TEE) based off-chain execution frameworks offer a promising…

Cryptography and Security · Computer Science 2025-11-07 Keyu Zhang , Andrew Martin

The recent COVID-19 pandemic has become a major threat to human health and well-being. Non-pharmaceutical interventions such as contact tracing solutions are important to contain the spreads of COVID-19-like infectious diseases. However,…

Computers and Society · Computer Science 2021-02-16 Peng Hu

Trusted execution environment (TEE) technology has found many applications in mitigating various security risks in an efficient manner, which is attractive for critical infrastructure protection. First, the natural of critical…

Cryptography and Security · Computer Science 2023-09-14 Rabimba Karanjai , Rowan Collier , Zhimin Gao , Lin Chen , Xinxin Fan , Taeweon Suh , Weidong Shi , Lei Xu

In recent years, with the continuous development of significant data industrialization, trajectory data have more and more critical analytical value for urban construction and environmental monitoring. However, the trajectory contains a lot…

Cryptography and Security · Computer Science 2018-04-06 Qilong Han , Dan Lu , Kejia Zhang , Xiaojiang Du , Mohsen Guizani