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Cryptocurrencies and their foundation technology, the Blockchain, are reshaping finance and economics, allowing a decentralized approach enabling trusted applications with no trusted counterpart. More recently, the Blockchain and the…

Software Engineering · Computer Science 2019-12-20 Lodovica Marchesi , Michele Marchesi , Roberto Tonelli

The development of Large Language Models (LLMs) faces a significant challenge: the exhausting of publicly available fresh data. This is because training a LLM needs a large demanding of new data. Federated learning emerges as a promising…

Cryptography and Security · Computer Science 2024-06-07 Xuhan Zuo , Minghao Wang , Tianqing Zhu , Lefeng Zhang , Dayong Ye , Shui Yu , Wanlei Zhou

Academic publications of latest research results are crucial to advance the development of all disciplines. However, there are several severe disadvantages in current academic publication systems. The first is the misconduct during the…

Cryptography and Security · Computer Science 2021-02-18 Yan Zhou , Zhiguo Wan , Zhangshuang Guan

Smart contracts are widely utilized in cross-chain interactions, where their results are transmitted from one blockchain (the producer blockchain) to another (the consumer blockchain). Unfortunately, the consumer blockchain often accepts…

Cryptography and Security · Computer Science 2024-08-20 Hong Su

Ensuring ballot secrecy is critical for fair and trustworthy electronic voting systems, yet achieving strong secrecy guarantees in decentralized, large-scale elections remains challenging. This paper proposes the concept of collectively…

In recent years, hype surrounding the proliferation of blockchain-based technology has been significant. Apart from the creation of bitcoin and other cryptocurrencies, it has been difficult to determine what practical utility might lie in…

Computers and Society · Computer Science 2017-10-12 Morgan C. Benton , Nicole M. Radziwill

The emergence of more and more blockchain solutions with innovative approaches to optimising performance, scalability, privacy and governance complicates performance analysis. Reasons for the difficulty of benchmarking blockchains include,…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-11-28 Frank Christian Geyer , Hans-Arno Jacobsen , Ruben Mayer , Peter Mandl

In this paper, we propose a blockchain-based computing verification protocol, called EntrapNet, for distributed shared computing networks, an emerging underlying network for many internet of things (IoT) applications. EntrapNet borrows the…

Cryptography and Security · Computer Science 2021-05-04 Chong Li , Lei Zhang , Serbiao Fang

Blockchains provide a mechanism through which mutually distrustful remote parties can reach consensus on the state of a ledger of information. With the great acceleration with which this space is developed, the demand for those seeking to…

Information Retrieval · Computer Science 2023-05-18 Rodrigo Veiga , Markus Endler , Valeria de Paiva

Blockchain technologies for rewards in education are gaining attraction as a promising approach to motivate student learning and promote academic achievement. By providing tangible rewards for educational attainment and engagement, such as…

Software Engineering · Computer Science 2023-04-11 Filipe Fernandes , Cláudia Werner

A smart contract is a computer program which allows users to automate their actions on the blockchain platform. Given the significance of smart contracts in supporting important activities across industry sectors including supply chain,…

Software Engineering · Computer Science 2021-04-20 Palina Tolmach , Yi Li , Shang-Wei Lin , Yang Liu , Zengxiang Li

No one can dispute the disruptive impact of blockchain technology, which has long been considered one of the major revolutions of contemporary times. Its integration into the healthcare ecosystem has helped overcome numerous difficulties…

Cryptography and Security · Computer Science 2024-01-09 Abdellah Ouaguid , Mohamed Hanine , Zouhair Chiba , Noreddine Abghour , Hassan Ghazal

Blockchain-based smart contract has become a growing field in the blockchain technology. What was once a technology used to solve digital transaction issues turns out to have some wider usage, including smart contract. The development of…

Cryptography and Security · Computer Science 2021-08-23 Fengkie Junis , Faisal Malik Widya Prasetya , Farouq Ibrahim Lubay , Anny Kartika Sari

Since the emergence of blockchain technology, its application in the financial market has always been an area of focus and exploration by all parties. With the characteristics of anonymity, trust, tamper-proof, etc., blockchain technology…

Statistical Finance · Quantitative Finance 2022-04-21 Ji Liu , Zheng Xu , Yanmei Zhang , Wei Dai , Hao Wu , Shiping Chen

The security of blockchain systems is fundamentally based on the decentralized consensus in which the majority of parties behave honestly, and the content verification process is essential to maintaining the robustness of blockchain…

Cryptography and Security · Computer Science 2025-08-21 Zishuo Zhao , Xi Chen , Yuan Zhou

In recent years, blockchain has grown in popularity due to its singular attributes, enabling the development of new innovative decentralized applications. But when companies consider leveraging blockchain for their applications, the…

Cryptography and Security · Computer Science 2021-01-25 Nicolas Six

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

As artificial intelligence (AI) systems become increasingly complex and autonomous, concerns over transparency and accountability have intensified. The "black box" problem in AI decision-making limits stakeholders' ability to understand,…

Cryptography and Security · Computer Science 2025-03-13 Afroja Akther , Ayesha Arobee , Abdullah Al Adnan , Omum Auyon , ASM Johirul Islam , Farhad Akter

We investigate how a blockchain can distill the collective belief of its nodes regarding the trustworthiness of a (sub)set of nodes into a {\em reputation system} that reflects the probability of correctly performing a task. To address this…

Computer Science and Game Theory · Computer Science 2025-10-13 Petros Drineas , Rohit Nema , Rafail Ostrovsky , Vassilis Zikas

Trust Management (TM) systems for authentication are vital to the security of online interactions, which are ubiquitous in our everyday lives. Various systems, like the Web PKI (X.509) and PGP's Web of Trust are used to manage trust in this…

Cryptography and Security · Computer Science 2017-11-15 Nikolaos Alexopoulos , Jörg Daubert , Max Mühlhäuser , Sheikh Mahbub Habib