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Today, financial institutions (FIs) store and share consumers' financial data for various reasons such as offering loans, processing payments, and protecting against fraud and financial crime. Such sharing of sensitive data have been…

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The advent of blockchain technology has led to a massive wave of different decentralized ledger technology (DLT) solutions. Such projects as Bitcoin and Ethereum have shifted the paradigm of how to transact value in a decentralized manner,…

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The unique properties of blockchain enable central requirements of distributed secure logging: Immutability, integrity, and availability. Especially when providing transparency about data usages, a blockchain-based secure log can be…

Cryptography and Security · Computer Science 2021-06-22 Valentin Zieglmeier , Gabriel Loyola Daiqui

Blockchain technology has emerged as a transformative paradigm for decentralized and secure data management across diverse application domains, including healthcare, supply chain management, and the Internet of Things. Its core features,…

Cryptography and Security · Computer Science 2025-05-14 Hojer Key

Health data is one of the most sensitive data for people, which attracts the attention of malicious activities. We propose an open-source health data management framework, that follows a patient-centric approach. The proposed framework…

Blockchain-based systems are frequently governed through tokens that grant their holders voting rights over core protocol functions and funds. The centralisation occurring in Decentralised Finance (DeFi) protocols' token-based voting…

Computational Engineering, Finance, and Science · Computer Science 2025-02-04 Thomas Eisermann , Carlo Campajola , Claudio J. Tessone , Andreia Sofia Teixeira

Decentralized Finance (DeFi) platforms are often governed by Decentralized Autonomous Organizations (DAOs) which are implemented via governance protocols. Governance tokens are distributed to users of the platform, granting them voting…

Cryptography and Security · Computer Science 2023-08-09 Maya Dotan , Aviv Yaish , Hsin-Chu Yin , Eytan Tsytkin , Aviv Zohar

Intuitively there is a drastic distinction between the pure decentralized block-chain systems like Defis and those that only utilize block-chain as an enhancing technology but remain centralized with real-world business model and…

Cryptography and Security · Computer Science 2021-07-30 Yuqi Bai , Lei Luo

Anonymous communication networks have emerged as crucial tools for obfuscating communication pathways and concealing user identities. However, their practical deployments face significant challenges, including susceptibility to artificial…

Cryptography and Security · Computer Science 2025-08-05 Chao Ge , Wei Yuan , Ge Chen , Yanbin Pan , Yuan Shen

Decentralized Finance (DeFi) is a nascent set of financial services, using tokens, smart contracts, and blockchain technology as financial instruments. We investigate four possible drivers of DeFi returns: exposure to cryptocurrency market,…

Computational Finance · Quantitative Finance 2024-03-07 Florentina Şoiman , Guillaume Dumas , Sonia Jimenez-Garces

Blockchain enables novel, trustworthy Process-Aware Information Systems (PAISs) by enforcing the security, robustness, and traceability of operations. In particular, transparency ensures that all information exchanges are openly accessible,…

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In recent years, permissionless blockchains have gained significant attention for their ability to secure and provide transparency in transactions. The development of blockchain technology has shifted from cryptocurrency to decentralized…

Cryptography and Security · Computer Science 2023-08-30 Talgar Bayan , Richard Banach

New technologies, such as blockchain, are designed to address various system weaknesses, particularly those related to security. Blockchain can enhance numerous aspects of traditional banking systems by transforming them into digital,…

Cryptography and Security · Computer Science 2026-03-24 Shkelqim Sherifi

Blockchain technology has been envisaged to commence an era of decentralised applications and services (DApps) without the need for a trusted intermediary. Such DApps open a marketplace in which services are delivered to end-users by…

Cryptography and Security · Computer Science 2021-01-27 Nguyen Truong , Gyu Myoung Lee , Kai Sun , Florian Guitton , Yike Guo

Next-generation wireless networks like 5G promise faster speed, shorter latency, and the ability to connect more devices. Such benefits are set to make drastic changes to the future society, empowering smart cities, enabling autonomous…

Cryptography and Security · Computer Science 2022-05-10 Cheng Lock Lim

INTRODUCTION: The proliferation of the amalgamation of IoT and edge computing has increased the demand for decentralised trust and security mechanisms capable of operating across heterogeneous and resource-limited devices. Approaches such…

Cryptography and Security · Computer Science 2026-04-21 Khandoker Ashik Uz Zaman , Mahdi H. Miraz , Mohammed N. M. Ali

Crypto-assets and central bank digital currencies (CBDCs) are reshaping how value is exchanged in distributed computing environments. These systems combine cryptographic primitives, protocol design, and system architectures to provide…

Cryptography and Security · Computer Science 2026-04-02 Matteo Nardelli , Francesco De Sclavis , Michela Iezzi

Federated learning has been rapidly evolving and gaining popularity in recent years due to its privacy-preserving features, among other advantages. Nevertheless, the exchange of model updates and gradients in this architecture provides new…

Cryptography and Security · Computer Science 2024-03-20 Ehsan Hallaji , Roozbeh Razavi-Far , Mehrdad Saif , Boyu Wang , Qiang Yang

Blockchain and smart contracts have garnered significant interest in recent years as the foundation of a decentralized, trustless digital ecosystem, thereby eliminating the need for traditional centralized authorities. Despite their central…

Cryptography and Security · Computer Science 2025-09-10 Nicolò Romandini , Carlo Mazzocca , Kai Otsuki , Rebecca Montanari

The Internet of Things is progressively getting broader, evol-ving its scope while creating new markets and adding more to the existing ones. However, both generation and analysis of large amounts of data, which are integral to this…

Cryptography and Security · Computer Science 2019-04-15 Guilherme Pinto , João Pedro Dias , Hugo Sereno Ferreira