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The financial sector's adoption of technology-driven data analysis has enhanced operational efficiency and revenue generation by leveraging personal sensitive data. However, the inherent characteristics of blockchain hinder decentralized…

Cryptography and Security · Computer Science 2023-11-13 Zhuangtong Huang , Jiawei Zhu , Zhongyu Huang , Yixin Xu , Jerome Yen , Ye Wang

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

With the development of the Internet, the amount of data generated by the medical industry each year has grown exponentially. The Electronic Health Record (EHR) manages the electronic data generated during the user's treatment process.…

Cryptography and Security · Computer Science 2026-01-22 Lingsheng Chen , Shipeng Ye , Xiaoqi Li

Blockchain technology promises to overcome trust and privacy concerns inherent to centralized information sharing. However, current decentralized supply chain management systems do either not meet privacy and scalability requirements or…

Cryptography and Security · Computer Science 2023-11-06 Eric Wagner , Roman Matzutt , Jan Pennekamp , Lennart Bader , Irakli Bajelidze , Klaus Wehrle , Martin Henze

This study proposes an advanced Federated Learning (FL) framework designed to enhance data privacy and security in IoT environments by integrating Decentralized Attribute-Based Encryption (DABE), Homomorphic Encryption (HE), Secure…

Cryptography and Security · Computer Science 2024-10-29 Sathwik Narkedimilli , Amballa Venkata Sriram , Satvik Raghav

Employee data can be used to facilitate work, but their misusage may pose risks for individuals. Inverse transparency therefore aims to track all usages of personal data, allowing individuals to monitor them to ensure accountability for…

Cryptography and Security · Computer Science 2023-04-24 Valentin Zieglmeier , Gabriel Loyola Daiqui , Alexander Pretschner

Blockchain has been widely deployed in various sectors, such as finance, education, and public services. Since blockchain runs as an immutable distributed ledger, it has decentralized mechanisms with persistency, anonymity, and…

Cryptography and Security · Computer Science 2021-11-30 Qian Wei , Bingzhe Li , Wanli Chang , Zhiping Jia , Zhaoyan Shen , Zili Shao

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…

Recommender systems have been widely used in different application domains including energy-preservation, e-commerce, healthcare, social media, etc. Such applications require the analysis and mining of massive amounts of various types of…

Blockchain is a popular method to ensure security for trusted systems. The benefits include an auditable method to provide decentralized security without a trusted third party, but the drawback is the large computational resources needed to…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-10-24 Erik Blasch , Ronghua Xu , Yu Chen , Genshe Chen , Dan Shen

This article proposes a blockchain-based file storage system that utilizes DNA encryption for enhanced security. The system utilizes blockchain technology to provide decentralized and tamper-proof file storage, while DNA encryption is…

Cryptography and Security · Computer Science 2023-10-12 Onur Yıldırım

COVID-19 is a severe global epidemic in human history. Even though there are particular medications and vaccines to curb the epidemic, tracing and isolating the infection source is the best option to slow the virus spread and reduce…

Cryptography and Security · Computer Science 2022-02-03 Jinyue Song , Tianbo Gu , Zheng Fang , Xiaotao Feng , Yunjie Ge , Hao Fu , Pengfei Hu , Prasant Mohapatra

With the advent of the Internet of things (IoT) era, more and more devices are connected to the IoT. Under the traditional cloud-thing centralized management mode, the transmission of massive data is facing many difficulties, and the…

Cryptography and Security · Computer Science 2022-02-09 Peiying Zhang , Xue Pang , Neeraj Kumar , Gagangeet Singh Aujla , Haotong Cao

Increased collaborative production and dynamic selection of production partners within industry 4.0 manufacturing leads to ever-increasing automatic data exchange between companies. Automatic and unsupervised data exchange creates new…

Cryptography and Security · Computer Science 2020-07-29 Jan Stodt , Christoph Reich

This research proposes a decentralized and cryptographically secure framework to address the most acute issues of privacy, data security, and protection in the ecosystem of medical insurance claim processing. The scope of this study focuses…

Cryptography and Security · Computer Science 2025-11-12 Diya Mamoria , Harshit Jain , Aswani Kumar Cherukuri

The Internet of Things is progressively getting broader, evol-ving its scope while creating new markets and adding more to the existing ones. However, both generation and analysis of large amounts of data, which are integral to this…

Cryptography and Security · Computer Science 2019-04-15 Guilherme Pinto , João Pedro Dias , Hugo Sereno Ferreira

A Quantum Ciphertext-Policy Attribute-Based Encryption scheme (QCP-ABE) has been presented. In classical domain, most of the popular ABE schemes are based on the hardness of the Bilinear Diffie-Hellman Exponent problem, which has been…

Quantum Physics · Physics 2022-03-22 Asmita Samanta , Arpita Maitra , Shion Samadder Chaudhury

Cyber attacks are becoming more frequent and sophisticated, introducing significant challenges for organizations to protect their systems and data from threat actors. Today, threat actors are highly motivated, persistent, and well-founded…

Cryptography and Security · Computer Science 2021-03-25 Yair Allouche , Nachiket Tapas , Francesco Longo , Asaf Shabtai , Yaron Wolfsthal

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

Authorization or access control limits the actions a user may perform on a computer system, based on predetermined access control policies, thus preventing access by illegitimate actors. Access control for the Internet of Things (IoT)…

Cryptography and Security · Computer Science 2021-04-05 Guntur Dharma Putra , Volkan Dedeoglu , Salil S Kanhere , Raja Jurdak , Aleksandar Ignjatovic