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In an organization specifically as virtual as cloud there is need for access control systems to constrain users direct or backhanded action that could lead to breach of security. In cloud, apart from owner access to confidential data the…

Cryptography and Security · Computer Science 2014-11-10 Muralikrishnan Ramane , Balaji Vasudevan , Sathappan Allaphan

The transparent and decentralized characteristics associated with blockchain can be both appealing and problematic when applied to a healthcare use-case. As health data is highly sensitive, it is also highly regulated to ensure the privacy…

Cryptography and Security · Computer Science 2020-09-29 Anton Hasselgren , Paul Kengfai Wan , Margareth Horn , Katina Kralevska , Danilo Gligoroski , Arild Faxvaag

The goal of this paper is to propose a blockchain-based platform to enhance transparency and traceability of cybersecurity certification information motivated by the recently adopted EU Cybersecurity Act. The proposed platform is generic…

Cryptography and Security · Computer Science 2019-09-17 Ricardo Neisse , José L. Hernández-Ramos , Sara N. Matheu , Gianmarco Baldini , Antonio Skarmeta

In modern healthcare systems, being able to share electronic health records is crucial for providing quality care and for enabling a larger spectrum of health services. Health data sharing is dependent on obtaining individual consent which,…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-09-02 Vikas Jaiman , Visara Urovi

Data privacy refers to ensuring that users keep control over access to information, whereas data accessibility refers to ensuring that information access is unconstrained. Conflicts between privacy and accessibility of data are natural to…

In the current connected world - Websites, Mobile Apps, IoT Devices collect a large volume of users' personally identifiable activity data. These collected data is used for varied purposes of analytics, marketing, personalization of…

Cryptography and Security · Computer Science 2022-01-06 Subhadip Mitra

This article surveys blockchain-based approaches for several security services. These services include authentication, confidentiality, privacy, and access control list (ACL), data and resource provenance, and integrity assurance. All these…

Cryptography and Security · Computer Science 2018-10-23 Tara Salman , Maede Zolanvari , Aiman Erbad , Raj Jain , Mohammed Samaka

Data privacy is a trending topic in the internet era. Given such importance, many challenges emerged in order to collect, manage, process, and publish data. In this sense, personal data have got attention, and many regulations emerged, such…

Computers and Society · Computer Science 2020-10-23 Paulo Henrique Alves , Isabella Z. Frajhof , Fernando A. Correia , Clarisse de Souza , Helio Lopes

With the more and more extensive application of blockchain, blockchain security has been widely concerned by the society and deeply studied by scholars. Moreover, the security of blockchain data directly affects the security of various…

Cryptography and Security · Computer Science 2020-07-22 Liehuang Zhu , Baokun Zheng , Meng Shen , Shui Yu , Feng Gao , Hongyu Li , Kexin Shi , Keke Gai

Various data-sharing platforms have emerged with the growing public demand for open data and legislation mandating certain data to remain open. Most of these platforms remain opaque, leading to many questions about data accuracy, provenance…

Cryptography and Security · Computer Science 2025-02-25 Linh T. Nguyen , Lam Duc Nguyen , Thong Hoang , Dilum Bandara , Qin Wang , Qinghua Lu , Xiwei Xu , Liming Zhu , Petar Popovski , Shiping Chen

The increasing availability of data from diverse sources, including trusted entities such as governments, as well as untrusted crowd-sourced contributors, demands a secure and trustworthy environment for storage and retrieval. Blockchain,…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-03-27 Aishwarya Parab , Prakhar Pradhan , Yogesh Simmhan , Arnab K. Paul

Currently, there is no universal method to track who shared what, with whom, when and for what purposes in a verifiable way to create an individual incentive for data owners. A platform that allows data owners to control, delete, and get…

Cryptography and Security · Computer Science 2025-10-29 Ajay Kumar Shrestha , Julita Vassileva

The main aim of the paper is to create a trust and transparency in the food supply chain system, ensuring food safety for everyone with the help of Blockchain Technology. Food supply chain is the process of tracing a crop from the farmer or…

Cryptography and Security · Computer Science 2024-01-19 Sudarssan N

In this paper we present our preliminary work on monitoring data License accoUntability and CompliancE (LUCE). LUCE is a blockchain platform solution designed to stimulate data sharing and reuse, by facilitating compliance with licensing…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-04-13 Andine Havelange , Michel Dumontier , Birgit Wouters , Jona Linde , David Townend , Arno Riedl , Visara Urovi

The Covid-19 pandemic has made individuals and organizations to rethink the way of handling identity verification and credentials sharing particularly in quarantined situations. In this study, we investigate the inefficiencies of…

Cryptography and Security · Computer Science 2020-06-24 Mehmet Aydar , Serkan Ayvaz , Salih Cemil Cetin

Integrating on-chain and off-chain data storage for decentralised and distributed information systems, such as blockchain, presents specific challenges for providing transparency of data governance and ensuring data integrity through…

Cryptography and Security · Computer Science 2022-07-04 Shoufeng Cao , Thomas Miller , Marcus Foth , Warwick Powell , Xavier Boyen , Charles Turner-Morris

The cost of conducting multi-site clinical trials has significantly increased over time, with site monitoring, data management, and amendments being key drivers. Clinical trial data management approaches typically rely on a central…

Databases · Computer Science 2019-02-12 Olivia Choudhury , Noor Fairoza , Issa Sylla , Amar Das

The state-of-the-art for auditing and reproducing scientific applications on high-performance computing (HPC) systems is through a data provenance subsystem. While recent advances in data provenance lie in reducing the performance overhead…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-02-04 Abdullah Al-Mamun , Dongfang Zhao

Ensuring the trustworthiness and long-term verifiability of scientific data is a foundational challenge in the era of data-intensive, collaborative research. Provenance metadata plays a key role in this context, capturing the origin,…

Networking and Internet Architecture · Computer Science 2025-06-02 Nicola Giuseppe Marchioro , Yannis Velegrakis , Valentine Anantharaj , Ian Foster , Sandro Luigi Fiore

The emergence of the Internet of Things (IoT) has resulted in a significant increase in research on e-health. As the amount of patient data grows, it has become increasingly challenging to protect patients' privacy. Patient data is commonly…

Cryptography and Security · Computer Science 2023-04-04 Sajad Meisami , Sadaf Meisami , Melina Yousefi , Mohammad Reza Aref