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Bitcoin is a decentralized, pseudonymous cryptocurrency that is one of the most used digital assets to date. Its unregulated nature and inherent anonymity of users have led to a dramatic increase in its use for illicit activities. This…

Cryptography and Security · Computer Science 2019-10-16 Francesco Zola , Maria Eguimendia , Jan Lukas Bruse , Raul Orduna Urrutia

Cryptocurrencies have gained popularity due to their transparency, security, and accessibility compared to traditional financial systems, with Bitcoin, introduced in 2009, leading the market. Bitcoin's security relies on blockchain…

Cryptography and Security · Computer Science 2024-11-12 Dinitha Wijewardhana , Sugandima Vidanagamachchi , Nalin Arachchilage

Technological advances have enabled multiple countries to consider implementing Smart City Infrastructure to provide in-depth insights into different data points and enhance the lives of citizens. Unfortunately, these new technological…

Cryptography and Security · Computer Science 2023-03-17 Yee Ching Tok , Sudipta Chattopadhyay

Blockchain technology has been attracting much attention from both academia and industry. It brings many benefits to various applications like Internet of Things. However, there are critical issues to be addressed before its widespread…

Cryptography and Security · Computer Science 2020-09-15 Hongyue Kang , Xiaolin Chang , Jelena Mišić , Vojislav B. Mišić , Yingying Yao , Zhi Chen

Extreme volatility, nonlinear dependencies, and systemic fragility are characteristics of cryptocurrency markets. The assumptions of normality and centralized control in traditional financial risk models frequently cause them to miss these…

Risk Management · Quantitative Finance 2025-07-15 Kiarash Firouzi

With the widespread adoption of cryptocurrencies, cryptojacking has become a significant security threat to crypto wallet users. This paper presents a front-end prototype of an AI-powered security dashboard, namely, CryptoGuard. Developed…

Cryptography and Security · Computer Science 2025-09-12 Amitabh Chakravorty , Jess Kropczynski , Nelly Elsayed

Attribute-based Encryption (ABE) is an information centric security solution that moves beyond traditional restrictions of point-to-point encryption by allowing for flexible, fine-grain policy-based and content-based access control that is…

Cryptography and Security · Computer Science 2020-02-20 Ehsan Meamari , Hao Guo , Chien-Chung Shen , Junbeom Hur

As a disruptive technology, blockchain, particularly its original form of bitcoin as a type of digital currency, has attracted great attentions. The innovative distributed decision making and security mechanism lay the technical foundation…

Cryptography and Security · Computer Science 2018-12-21 Ameer Tamoor Khan , Xinwei Cao , Shuai Li

We propose a modelling framework for the optimal selection of crypto assets. Crypto assets differ by two essential features: security (technological) and stability (governance). Investors make choices over crypto assets similarly to how…

Computers and Society · Computer Science 2019-07-23 Silvia Bartolucci , Andrei Kirilenko

The rapid development of artificial intelligence methods contributes to their wide applications for forecasting various financial risks in recent years. This study introduces a novel explainable case-based reasoning (CBR) approach without a…

Computational Finance · Quantitative Finance 2021-07-20 Wei Li , Florentina Paraschiv , Georgios Sermpinis

Over the past decade, high performance computational (HPC) clusters have become mainstream in academic and industrial settings as accessible means of computation. Throughout their proliferation, HPC security has been a secondary concern to…

Cryptography and Security · Computer Science 2007-05-23 Dmitry Mogilevsky , Adam Lee , William Yurcik

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

Cryptography is the science of using mathematics to encrypt and decrypt data. Cryptography enables you to store sensitive information or transmit it across insecure networks so that it cannot be read by anyone except the intended recipient.…

Cryptography and Security · Computer Science 2011-10-10 Penmetsa V. Krishna Raja , A. S. N. Chakravarthy , P. S. Avadhani

The rise of advanced persistent threats (APTs) has marked a significant cybersecurity challenge, characterized by sophisticated orchestration, stealthy execution, extended persistence, and targeting valuable assets across diverse sectors.…

Cryptography and Security · Computer Science 2024-04-19 Yuntao Wang , Han Liu , Zhendong Li , Zhou Su , Jiliang Li

Advanced AI systems offer substantial benefits but also introduce risks. In 2025, AI-enabled cyber offense has emerged as a concrete example. This technical report applies a quantitative risk modeling methodology (described in full in a…

Solving cybersecurity issues requires a holistic understanding of components, factors, structures and their interactions in cyberspace, but conventional modeling approaches view the field of cybersecurity by their boundaries so that we are…

Cryptography and Security · Computer Science 2020-01-17 Dingyu Yan

The rapid advancement of open-source foundation models has brought transparency and accessibility to this groundbreaking technology. However, this openness has also enabled the development of highly-capable, unsafe models, as exemplified by…

Computers and Society · Computer Science 2024-06-18 Terrence Neumann , Bryan Jones

Adaptive inference schemes reduce the cost of machine learning inference by assigning smaller models to easier examples, attempting to avoid invocation of larger models when possible. In this work we explore a simple, effective adaptive…

Machine Learning · Computer Science 2025-10-13 Steven Kolawole , Don Dennis , Ameet Talwalkar , Virginia Smith

Given the increasing complexity of threats in smart cities, the changing environment, and the weakness of traditional security systems, which in most cases fail to detect serious threats such as zero-day attacks, the need for alternative…

Cryptography and Security · Computer Science 2021-02-26 Konstantinos Demertzis

Cryptocurrency refers to a type of digital asset that uses distributed ledger, or blockchain, technology to enable a secure transaction. Although the technology is widely misunderstood, many central banks are considering launching their own…

Computational Finance · Quantitative Finance 2020-07-30 Wolfgang Karl Härdle , Campbell R. Harvey , Raphael C. G. Reule