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Unlike other industries in which intellectual property is patentable, the financial industry relies on trade secrecy to protect its business processes and methods, which can obscure critical financial risk exposures from regulators and the…

Risk Management · Quantitative Finance 2011-11-28 Emmanuel A. Abbe , Amir E. Khandani , Andrew W. Lo

Enforcement of privacy regulation is essential for collaborative data analytics. In this work, we address a scenario in which two companies expect to securely join their datasets with respect to their common customers to maximize data…

Cryptography and Security · Computer Science 2024-10-08 Jiabo Wang , Elmo Xuyun Huang , Pu Duan , Huaxiong Wang , Kwok-Yan Lam

Existing Bluetooth-based Private Contact Tracing (PCT) systems can privately detect whether people have come into direct contact with COVID-19 patients. However, we find that the existing systems lack functionality and flexibility, which…

Cryptography and Security · Computer Science 2022-01-03 Fumiyuki Kato , Yang Cao , Masatoshi Yoshikawa

Processing sensitive data, such as those produced by body sensors, on third-party untrusted clouds is particularly challenging without compromising the privacy of the users generating it. Typically, these sensors generate large quantities…

Cryptography and Security · Computer Science 2019-06-18 Carlos Segarra , Ricard Delgado-Gonzalo , Mathieu Lemay , Pierre-Louis Aublin , Peter Pietzuch , Valerio Schiavoni

Data cooperatives with fiduciary obligations to members provide a promising direction for the empowerment of individuals through their own personal data. A data cooperative can manage, curate and protect access to the personal data of…

Computers and Society · Computer Science 2019-05-23 Thomas Hardjono , Alex Pentland

The eruption of big data with the increasing collection and processing of vast volumes and variety of data have led to breakthrough discoveries and innovation in science, engineering, medicine, commerce, criminal justice, and national…

Cryptography and Security · Computer Science 2020-07-03 Fang Liu

Objectives: Federal open data initiatives that promote increased sharing of federally collected data are important for transparency, data quality, trust, and relationships with the public and state, tribal, local, and territorial (STLT)…

AI-augmented data workflows introduce complex governance challenges, as both human and model-driven processes generate, transform, and consume data artifacts. These workflows blend heterogeneous tools, dynamic execution patterns, and opaque…

Databases · Computer Science 2025-08-12 Jinjin Zhao , Sanjay Krishnan

The federated analysis of sensitive time series has huge potential in various domains, such as healthcare or manufacturing. Yet, to fully unlock this potential, requirements imposed by various stakeholders must be fulfilled, regarding,…

Cryptography and Security · Computer Science 2024-08-29 Daniel Bachlechner , Ruben Hetfleisch , Stephan Krenn , Thomas Lorünser , Michael Rader

Mobile Edge Computing (MEC) is a new computing paradigm that enables cloud computing and information technology (IT) services to be delivered at the network's edge. By shifting the load of cloud computing to individual local servers, MEC…

Cryptography and Security · Computer Science 2024-01-04 Cheng Wang , Zenghui Yuan , Pan Zhou , Zichuan Xu , Ruixuan Li , Dapeng Oliver Wu

We provide enhanced security against insider attacks in services that manage extremely sensitive data. One example is a #MeToo use case where sexual harassment complaints are reported but only revealed when another complaint is filed…

Cryptography and Security · Computer Science 2018-08-09 Danny Harnik , Paula Ta-Shma , Eliad Tsfadia

Confidential Computing enhances privacy of data in-use through hardware-based Trusted Execution Environments (TEEs) that use attestation to verify their integrity, authenticity, and certain runtime properties, along with those of the…

Cryptography and Security · Computer Science 2024-12-09 Ceren Kocaoğullar , Tina Marjanov , Ivan Petrov , Ben Laurie , Al Cutter , Christoph Kern , Alice Hutchings , Alastair R. Beresford

Federated analytics seeks to compute accurate statistics from data distributed across users' devices while providing a suitable privacy guarantee and being practically feasible to implement and scale. In this paper, we show how a strong…

Cryptography and Security · Computer Science 2022-03-10 Akash Bharadwaj , Graham Cormode

Centralized systems in the Internet of Things---be it local middleware or cloud-based services---fail to fundamentally address privacy of the collected data. We propose an architecture featuring secure multiparty computation at its core in…

Cryptography and Security · Computer Science 2018-06-07 Marcel von Maltitz , Georg Carle

Wallet may be described as container application used for configuring, accessing and analysing data from underlying payment application(s). There are two dominant types of digital wallet applications, proximity wallet and remote wallet. In…

Cryptography and Security · Computer Science 2014-12-10 Amal Saha , Sugata Sanyal

Handling missing data is crucial in machine learning, but many datasets contain gaps due to errors or non-response. Unlike traditional methods such as listwise deletion, which are simple but inadequate, the literature offers more…

Cryptography and Security · Computer Science 2024-05-30 Julia Jentsch , Ali Burak Ünal , Şeyma Selcan Mağara , Mete Akgün

With the advent of blockchain technology, multiple research avenues and platforms for dialogue have opened up. However technology transfer to the pubic has not been implemented, such that regular public can access and make use of secure and…

Computers and Society · Computer Science 2019-09-04 Projjal Gupta

Perceptions of police trustworthiness are linked to citizens' willingness to cooperate with police. Trust can be fostered by introducing accountability mechanisms, or by increasing a shared police/citizen identity, both which can be…

Goal: As the Coronavirus Pandemic of 2019/2020 unfolds, a COVID-19 'Immunity Passport' has been mooted as a way to enable individuals to return back to work. While the quality of antibody testing, the availability of vaccines, and the…

Cryptography and Security · Computer Science 2020-06-30 Marc Eisenstadt , Manoharan Ramachandran , Niaz Chowdhury , Allan Third , John Domingue