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The cybersecurity of modern systems has dramatically increased attention from both industrial and academia perspectives. In the recent era, the popularity of the blockchain-based system has traditionally been emergent among various…

Cryptography and Security · Computer Science 2022-09-13 Abdul Khalique Shaikh A. K. Al-Alawi , L. R. , Al-Busaidi , R. , Shaikh

Byzantine agreement, the underlying core of blockchain, aims to make every node in a decentralized network reach consensus. Classical Byzantine agreements unavoidably face two major problems. One is $1/3$ fault-tolerance bound, which means…

Blockchain has become a popular emergent technology in many industries. It is suitable for a broad range of applications, from its base role as an immutable distributed ledger to the deployment of distributed applications. Many…

Cryptography and Security · Computer Science 2022-12-20 Inwon Kang , Aparna Gupta , Oshani Seneviratne

Blockchain is a continuously developing technology that has made digital transactions and related computing operations more transparent and secure through globally distributed and decentralized management of states, as well as the strong…

Cryptography and Security · Computer Science 2021-03-29 Neo C. K. Yiu

Quantum Byzantine Agreement (QBA), a cornerstone of quantum blockchain, offers inherent advantages in security and fault tolerance over classical protocols, guaranteed by the laws of quantum mechanics. However, existing multiparty QBA…

Quantum Physics · Physics 2026-02-13 Chen-Xun Weng , Ming-Yang Li , Shi-Gen Li , Mengya Zhu , Xiao-Ran Sun , Hua-Lei Yin , Zeng-Bing Chen

As the digitization of information-intensive processes gains momentum in nowadays, the concern is growing about how to deal with the ever-growing problem of cybercrime. To this end, law enforcement officials and security firms use…

Cryptography and Security · Computer Science 2020-05-27 Thomas K. Dasaklis , Fran Casino , Constantinos Patsakis

It is undeniable that artificial intelligence (AI) and blockchain concepts are spreading at a phenomenal rate. Both technologies have distinct degree of technological complexity and multi-dimensional business implications. However, a common…

Artificial Intelligence · Computer Science 2018-10-24 Tshilidzi Marwala , Bo Xing

Quantum blockchains provide inherent resilience against quantum adversaries and represent a promising alternative to classical blockchain systems in the quantum era. However, existing quantum blockchain architectures largely depend on…

Quantum Physics · Physics 2025-10-14 Chong-Qiang Ye , Heng-Ji Li , Jian Li , Xiao-Yu Chen

This paper explores the coexistence possibilities of Central Bank Digital Currencies (CBDCs) and blockchain-based cryptocurrencies within a post-quantum computing landscape. It examines the implications of emerging quantum algorithms and…

Cryptography and Security · Computer Science 2024-11-12 Abraham Itzhak Weinberg , Pythagoras Petratos , Alessio Faccia

The development of quantum information platforms such as quantum computers and quantum simulators that will rival classical Turing computations are typically viewed as a threat to secure data transmissions and therefore to crypto-systems…

Quantum Physics · Physics 2018-03-01 Kirill P. Kalinin , Natalia G. Berloff

Recently, the invention of quantum computers was so revolutionary that they bring transformative challenges in a variety of fields, especially for the traditional cryptographic blockchain, and it may become a real thread for most of the…

Cryptography and Security · Computer Science 2024-07-30 Tatsuru Kikuchi

Services computing can offer a high-level abstraction to support diverse applications via encapsulating various computing infrastructures. Though services computing has greatly boosted the productivity of developers, it is faced with three…

Cryptography and Security · Computer Science 2020-12-09 Xiaoyun Li , Zibin Zheng , Hong-Ning Dai

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…

As the use of DevOps practices continues to grow, organizations are seeking ways to improve collaboration, speed up development cycles, and increase security, transparency, and traceability. Blockchain technology has the potential to…

Cryptography and Security · Computer Science 2023-06-02 Muhammad Shoaib Farooq , Usman Ali

Blockchain technology is widely used in various fields due to its ability to provide decentralization and trustless security. This is a fundamental understanding held by many advocates, but it is misunderstood, leading participants to fail…

Cryptography and Security · Computer Science 2026-02-02 Chunyi Zhang , Fengjiao Dou , Xiaoqi Li

Blockchains add transactions to a distributed shared ledger by arriving at consensus on sets of transactions contained in blocks. This provides a total ordering on a set of global transactions. However, total ordering is not enough to…

Cryptography and Security · Computer Science 2024-08-27 Anshuman Misra , Ajay D. Kshemkalyani

Bitcoin and blockchain in general is a hot topic nowadays. In the paper we propose a quantum empowering of this technology and show how to speed-up the mining procedure using the modified Grover's algorithm.

Quantum Physics · Physics 2018-03-30 D. Sapaev , D. Bulychkov , F. Ablayev , A. Vasiliev , M. Ziatdinov

Bluetooth is a communication technology used to wirelessly exchange data between devices. In the last few years there have been found a great number of security vulnerabilities, and adversaries are taking advantage of them causing harm and…

Cryptography and Security · Computer Science 2022-11-15 Athanasios Kalogiratos , Ioanna Kantzavelou

Blockchain has many benefits including decentralization, availability, persistency, consistency, anonymity, auditability and accountability, and it also covers a wide spectrum of applications ranging from cryptocurrency, financial services,…

Computational Engineering, Finance, and Science · Computer Science 2018-10-02 Quan-Lin Li , Jing-Yu Ma , Yan-Xia Chang

Blockchain technology is the first successful Bitcoin Network. It enables the ledger to become more decentralized and secure. Since it is not limited to bitcoin and controlled by third parties by government, corporations or banks, the…

Image and Video Processing · Electrical Eng. & Systems 2020-04-17 Jala Quluzada , Sabnam Maharramli