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Blockchain is a distributed ledger, which is protected against malicious modifications by means of cryptographic tools, e.g. digital signatures and hash functions. One of the most prominent applications of blockchains is cryptocurrencies,…

Cryptography and Security · Computer Science 2019-12-20 E. O. Kiktenko , M. A. Kudinov , A. K. Fedorov

Blockchain technology is an interlinked systematic chain of blocks that contains transaction history and other user data. It works under the principle of decentralized distributed digital ledger. This technology enables cryptographically…

Cryptography and Security · Computer Science 2020-12-25 AKM Bahalul Haque , Mahbubur Rahman

Credit card frauds are at an ever-increasing rate and have become a major problem in the financial sector. Because of these frauds, card users are hesitant in making purchases and both the merchants and financial institutions bear heavy…

Machine Learning · Computer Science 2020-12-08 Thanh Thi Nguyen , Hammad Tahir , Mohamed Abdelrazek , Ali Babar

Rapid evolution of information technology has contributed to the evolution of more sophisticated E- commerce system with the better transaction time and protection. The currently used E-commerce models lack in quality properties such as…

Cryptography and Security · Computer Science 2014-07-10 Ashish Kr. Luhach , Sanjay K Dwivedi , C K Jha

Automated fraud behaviors detection on electronic payment platforms is a tough problem. Fraud users often exploit the vulnerability of payment platforms and the carelessness of users to defraud money, steal passwords, do money laundering,…

Cryptography and Security · Computer Science 2019-09-06 Ruoyu Deng , Na Ruan

With the rise of sophisticated authentication bypass techniques, passwords are no longer considered a reliable method for securing authentication systems. In recent years, new authentication technologies have shifted from traditional…

Cryptography and Security · Computer Science 2025-08-19 Lien Tran , Boyuan Zhang , Ratchanon Pawanja , Rashid Hussain Khokhar

Recent advances indicate that quantum computers will soon be reality. Motivated by this ever more realistic threat for existing classical cryptographic protocols, researchers have developed several schemes to resist "quantum attacks". In…

Quantum Physics · Physics 2021-04-21 Myrto Arapinis , Elham Kashefi , Nikolaos Lamprou , Anna Pappa

The growth of local data annually implies extra charges for the customers, which makes their business slowing down. Cloud computing paradigm comes with new technologies that offer a very economic and cost-effective solution, but the…

Cryptography and Security · Computer Science 2019-02-05 Megouache Leila , Abdelhafid Zitouni , Mahieddine Djoudi

Electric vehicles (EVs) are key to alleviate our dependency on fossil fuels. The future smart grid is expected to be populated by millions of EVs equipped with high-demand batteries. To avoid an overload of the (current) electricity grid,…

Cryptography and Security · Computer Science 2022-09-19 Roberto Metere , Zoya Pourmirza , Sara Walker , Myriam Neaimeh

Dynamic wireless power transfer provides means for charging Electric Vehicles (EVs) while driving, avoiding stopping for charging and hence fostering their widespread adoption. Researchers devoted much effort over the last decade to provide…

Cryptography and Security · Computer Science 2022-08-08 Surudhi Asokraj , Tommaso Bianchi , Alessandro Brighente , Mauro Conti , Radha Poovendran

Blockchain is a disruptive technology that has been characterised to be the next big thing and has already gained a broad recognition by experts in diverse fields. In this paper, we consider possible use cases and applications of the…

Cryptography and Security · Computer Science 2019-05-06 Nicholas Kolokotronis , Konstantinos Limniotis , Stavros Shiaeles , Romain Griffiths

The rise of digital payments has caused consequential changes in the financial crime landscape. As a result, traditional fraud detection approaches such as rule-based systems have largely become ineffective. AI and machine learning…

Cryptography and Security · Computer Science 2021-03-05 E. Kurshan , H. Shen

We propose a quantum authentication protocol that is robust against the theft of secret keys. In the protocol, disposable quantum passwords prevent impersonation attacks with stolen secret keys. The protocol also prevents the leakage of…

Quantum Physics · Physics 2008-06-09 Masahiro Hotta , Masanao Ozawa

Information and communication technologies are by now employed in most human activities, including economics and finance. Modern computers have reached an extraordinary power in terms of information processing, storage, retrieval, and…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-03-27 Marco Bernardo , Federico Calandra , Andrea Esposito , Francesco Fabris

We introduce password strength information signaling as a novel, yet counter-intuitive, defense mechanism against password cracking attacks. Recent breaches have exposed billions of user passwords to the dangerous threat of offline password…

Cryptography and Security · Computer Science 2021-08-17 Wenjie Bai , Jeremiah Blocki , Ben Harsha

Block-chain world is very dynamic and there is need for strong governance and underlying technology architecture to be robust to face challenges. This paper considers Ethereum, a leading block chain. We deep dive into the nature of this…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-10-21 G. Hall , M. Mansi , I. Makrant

The Internet of Things (IoT) expansion has brought a new era of connected devices, including wearable devices like smartwatches and medical monitors, that are becoming integral parts of our daily lives. These devices not only offer…

Cryptography and Security · Computer Science 2024-09-04 Haobo Yang

In this paper, we use the ten security requirements proposed by Liao et al. for a smart card based authentication protocol to examine five recent work in this area. After analyses, we found that the protocols of Juang et al.'s , Hsiang et…

Cryptography and Security · Computer Science 2010-07-02 Yalin Chen , Jue-Sam Chou* , Chun-Hui Huang

Recent years have witnessed a rapid development of platform economy, as it effectively addresses the trust dilemma between untrusted online buyers and merchants. However, malicious platforms can misuse users' funds and information, causing…

Cryptography and Security · Computer Science 2025-05-26 Junru Lin , Mingzhe Liu , Songze Li , Xuechao Wang

Fraudulent activities on digital banking services are becoming more intricate by the day, challenging existing defenses. While older rule driven methods struggle to keep pace, even precision focused algorithms fall short when new scams are…

Cryptography and Security · Computer Science 2026-01-21 Karthikeyan V. R. , Premnath S. , Kavinraaj S. , J. Sangeetha
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