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Blockchain is a decentralized ledger used to securely exchange digital currency, perform deals and transactions efficient manner, each user of the network has access to the least copy of the encrypted ledger so that they can validate a new…

Cryptography and Security · Computer Science 2022-01-03 Bosubabu Sambana

An increasing number of industries rely on Internet-of-Things devices to track physical resources. Blockchain technology provides primitives to represent these resources as digital assets on a secure distributed ledger. Due to the…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-04-13 Martijn de Vos , Can Umut Ileri , Johan Pouwelse

Policy decisions are increasingly dependent on the outcomes of simulations and/or machine learning models. The ability to share and interact with these outcomes is relevant across multiple fields and is especially critical in the disease…

Machine learning algorithms learn from data and use data from databases that are mutable; therefore, the data and the results of machine learning cannot be fully trusted. Also, the machine learning process is often difficult to automate. A…

Machine Learning · Computer Science 2019-08-19 Tao Wang , Xinmin Wu , Taiping He

Blockchain is a distributed database which is cryptographically protected against malicious modifications. While promising for a wide range of applications, current blockchain platforms rely on digital signatures, which are vulnerable to…

The governance of data used for biomedical research and clinical trials is an important requirement for generating accurate results. To improve the visibility of data quality and analysis, we developed TrialChain, a blockchain-based…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-07-11 Hao Dai , H Patrick Young , Thomas JS Durant , Guannan Gong , Mingming Kang , Harlan M Krumholz , Wade L Schulz , Lixin Jiang

Blockchain, as the backbone technology of the current popular Bitcoin digital currency, has become a promising decentralized data management framework. Although blockchain has been widely adopted in many applications, e.g., finance,…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-04-13 Zehui Xiong , Yang Zhang , Dusit Niyato , Ping Wang , Zhu Han

We discuss future directions of Blockchain as a collaborative value co-creation platform, in which network participants can gain extra insights that cannot be accessed when disconnected from the others. As such, we propose a decentralized…

Machine Learning · Computer Science 2022-08-25 Tsuyoshi Idé , Rudy Raymond

A detailed exploration of blockchain technology and its applications across various fields is provided, beginning with an introduction to cryptography fundamentals, including symmetric and asymmetric encryption, and their roles in ensuring…

Quantum federated learning (QFL) is emerging as a key enabler for intelligent, secure, and privacy-preserving model training in next-generation 6G networks. By leveraging the computational advantages of quantum devices, QFL offers…

Cryptography and Security · Computer Science 2025-12-12 Dinh C. Nguyen , Md Bokhtiar Al Zami , Ratun Rahman , Shaba Shaon , Tuy Tan Nguyen , Fatemeh Afghah

Many existing blockchains do not adequately address all the characteristics of distributed system applications and suffer from serious architectural limitations resulting in performance and confidentiality issues. While recent permissioned…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-02-06 Mohammad Javad Amiri , Divyakant Agrawal , Amr El Abbadi

Federated learning is a distributed machine learning paradigm through centralized model aggregation. However, standard federated learning relies on a centralized server, making it vulnerable to server failures. While existing solutions…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-10-03 Hongliang Zhang , Fenghua Xu , Zhongyuan Yu , Shanchen Pang , Chunqiang Hu , Jiguo Yu

Supply chain data management faces challenges in traceability, transparency, and trust. These issues stem from data silos and communication barriers. This research introduces DIDChain, a framework leveraging blockchain technology,…

Cryptography and Security · Computer Science 2025-03-05 Patrick Herbke , Sid Lamichhane , Kaustabh Barman , Sanjeet Raj Pandey , Axel Küpper , Andreas Abraham , Markus Sabadello

Blockchain-based federated learning (BCFL) has recently gained tremendous attention because of its advantages such as decentralization and privacy protection of raw data. However, there has been few research focusing on the allocation of…

Cryptography and Security · Computer Science 2022-02-23 Zhilin Wang , Qin Hu , Ruinian Li , Minghui Xu , Zehui Xiong

The applications of the blockchain technology are still being discov-ered. When a new potential disruptive technology emerges, there is a tendency to try to solve every problem with that technology. However, it is still necessary to…

Computers and Society · Computer Science 2021-03-16 Bruno Tavares , Filipe Figueiredo Correia , André Restivo , João Pascoal Faria , Ademar Aguiar

Blockchain, the backbone of Bitcoin, has recently gained a lot of attention. Blockchain functions as an immutable record that enables decentralized transactions. Blockchain-based applications are sprouting up in a variety of industries,…

Cryptography and Security · Computer Science 2023-03-23 Aakash Garg , Ankit Tyagi , Anant Patel , Divyansh Raj

An ideal signature material and method, which can be used to prove the authenticity of a physical item and against forgery, should be immune to the fast developments in digital and engineering technologies. Herein, the design of signature…

Biomolecules · Quantitative Biology 2019-09-18 Yixin Zhang

Blockchain has received a widespread attention because of its decentralized, tamper-proof, and transparent nature. Blockchain works over the principle of distributed, secured, and shared ledger, which is used to record, and track data…

Cryptography and Security · Computer Science 2020-04-21 Muneeb Ul Hassan , Mubashir Husain Rehmani , Jinjun Chen

For the modern world where data is becoming one of the most valuable assets, robust data privacy policies rooted in the fundamental infrastructure of networks and applications are becoming an even bigger necessity to secure sensitive user…

Cryptography and Security · Computer Science 2019-12-11 Anudit Nagar

Blockchain-enabled Federated Learning (BFL) enables mobile devices to collaboratively train neural network models required by a Machine Learning Model Owner (MLMO) while keeping data on the mobile devices. Then, the model updates are stored…

Machine Learning · Computer Science 2020-05-04 Nguyen Quang Hieu , Tran The Anh , Nguyen Cong Luong , Dusit Niyato , Dong In Kim , Erik Elmroth