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Blockchain technology streamlines multi-party collaborations in decentralized settings, especially when trust is limited or difficult to establish. While public blockchains enhance transparency and reliability by replicating data across all…

This paper outlines a method aiming to increase the efficiency of proof-of-work based blockchains using a ticket-based approach. To avoid the limitation of serially adding one block at a time to a blockchain, multiple semi-independent…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-06-14 Elias Rudberg

In order to increase the value of scientific datasets and improve research outcomes, it is important that only trustworthy data is used. This paper presents mechanisms by which scientists and the organisations they represent can certify the…

Cryptography and Security · Computer Science 2020-04-07 Iain Barclay , Swapna Radha , Alun Preece , Ian Taylor , Jarek Nabrzyski

The citizenship identities of a nation's occupants enable the state to identify and authenticate them unquestionably. These documents help individuals in recognizing themselves and to profit from the rights and advantages given to them by…

Computers and Society · Computer Science 2021-01-26 Sri Sai Abhishake Gopal Dasari

The rise of the industrial metaverse has brought digital twins (DTs) to the forefront. Blockchain-powered non-fungible tokens (NFTs) offer a decentralized approach to creating and owning these cloneable DTs. However, the potential for…

Cryptography and Security · Computer Science 2024-12-23 Ravi Prakash , Tony Thomas

We propose in this paper BlockHouse, a decentralized/P2P storage system fully based on private blockchains. Each participant can rent his unused storage in order to host data of other members. This system uses a dual Smart Contract and…

Cryptography and Security · Computer Science 2020-01-22 Doriane Perard , Lucas Gicquel , Jérôme Lacan

The Hybrid Technology Hub and many other research centers work in cross-functional teams whose workflow is not necessarily linear and where in many cases technology advances are done through parallel work. The lack of proper tools and…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-02-18 Pavel Vazquez , Kayoko Shoji , Steffen Novik , Stefan Krauss , Simon Rayner

Since its inception as a solution for secure cryptocurrencies sharing in 2008, the blockchain technology has now become one of the core technologies for secure data sharing and storage over trustless and decentralised peer-to-peer systems.…

Cryptography and Security · Computer Science 2020-06-26 Noe Elisa , Longzhi Yang , Honglei Li , Fei Chao , Nitin Naik

Identity documentation for refugees is a complex process and crucial for host nations. A secured identity management system ensures both security and the efficient provision of services for the host nation and the donor organizations.…

Cryptography and Security · Computer Science 2023-10-31 Md Taimur Ahad , Yousuf Rayhan Emon

Data is central to the Internet of Things (IoT) ecosystem. Most of the current IoT systems are using centralized cloud-based data sharing systems, which will be difficult to scale up to meet the demands of future IoT systems. Involvement of…

Cryptography and Security · Computer Science 2019-03-11 Ahsan Manzoor , Madhsanka Liyanage , An Braeken , Salil S. Kanhere , Mika Ylianttila

This paper presents a novel reference architecture for blockchain-enabled federated learning (BCFL), a state-of-the-art approach that amalgamates the strengths of federated learning and blockchain technology.We define smart contract…

Machine Learning · Computer Science 2023-11-27 Eunsu Goh , Dae-Yeol Kim , Kwangkee Lee , Suyeong Oh , Jong-Eui Chae , Do-Yup Kim

In this paper we address the issue of identity and access control within shared permissioned blockchains. We propose the ChainAchor system that provides anonymous but verifiable identities for entities on the blockchain. ChainAchor also…

Cryptography and Security · Computer Science 2019-03-13 Thomas Hardjono , Alex Pentland

With the emerging developments of the Metaverse, a virtual world where people can interact, socialize, play, and conduct their business, it has become critical to ensure that the underlying systems are transparent, secure, and trustworthy.…

Machine Learning · Computer Science 2023-06-21 Dev Gurung , Shiva Raj Pokhrel , Gang Li

Federated Learning (FL) has gained widespread popularity in recent years due to the fast booming of advanced machine learning and artificial intelligence along with emerging security and privacy threats. FL enables efficient model…

Cryptography and Security · Computer Science 2023-03-27 Ervin Moore , Ahmed Imteaj , Shabnam Rezapour , M. Hadi Amini

Managing and exchanging sensitive information securely is a paramount concern for the scientific and cybersecurity community. The increasing reliance on computing workflows and digital data transactions requires ensuring that sensitive…

Cryptography and Security · Computer Science 2023-11-23 Md Jobair Hossain Faruk , Bilash Saha , Jim Basney

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

Innovative solutions addressing product anti-counterfeiting and record provenance have been deployed across today's internationally spanning supply chain networks. These product anti-counterfeiting solutions are developed and implemented…

Computers and Society · Computer Science 2021-02-03 Neo C. K. Yiu

In most High Performance Computing (HPC) projects nowadays, there is a lot of data obtained from different sources, depending on the project's objectives. Some of that data is very huge in terms of size, so copying such data sometimes is an…

Cryptography and Security · Computer Science 2026-01-21 Gian Sebastian Mier Bello , Alexander Martinez Mendez , Carlos J. Barrios H. , Robinson Rivas , Luis A. Núñez

Internet of Things (IoT) devices pose significant security challenges due to their heterogeneity (i.e., hardware and software) and vulnerability to extensive attack surfaces. Today's conventional perimeter-based systems use credential-based…

Cryptography and Security · Computer Science 2023-11-29 Cem Bicer , Ilir Murturi , Praveen Kumar Donta , Schahram Dustdar

Quantum computing provides a feasible multi-layered security challenge to classical blockchain networks. Quantum blockchains that rely on quantum key distribution (QKD) to establish secure channels can address this feasible threat. Whereas,…

Quantum Physics · Physics 2026-05-12 Xuan Li , Yun Mao , Ying Guo