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Federated learning is a decentralized machine learning paradigm that allows multiple clients to collaborate by leveraging local computational power and the models transmission. This method reduces the costs and privacy concerns associated…

机器学习 · 计算机科学 2023-07-03 Bipin Chhetri , Saroj Gopali , Rukayat Olapojoye , Samin Dehbash , Akbar Siami Namin

A cryptocurrency is a decentralized digital currency that is designed for secure and private asset transfer and storage. As a currency, it should be difficult to counterfeit and double-spend. In this paper, we review and analyze the major…

密码学与安全 · 计算机科学 2019-04-26 Ehab Zaghloul , Tongtong Li , Matt Mutka , Jian Ren

Blockchain was always associated with Bitcoin, cryptocurrencies, and digital asset trading. However, its benefits are far beyond that. It supports technologies like the Internet-of-Things (IoT) to pave the way for futuristic smart…

密码学与安全 · 计算机科学 2022-03-18 Maad Ebrahim , Abdelhakim Hafid , Etienne Elie

Renewable energy has become a reality in the present and is being preferred by countries to become a considerable part of the central grid. With the increasing adoption of renewables it will soon become crucial to have a platform which…

With the more and more extensive application of blockchain, blockchain security has been widely concerned by the society and deeply studied by scholars. Moreover, the security of blockchain data directly affects the security of various…

密码学与安全 · 计算机科学 2020-07-22 Liehuang Zhu , Baokun Zheng , Meng Shen , Shui Yu , Feng Gao , Hongyu Li , Kexin Shi , Keke Gai

Blockchain technologies are gaining massive momentum in the last few years. Blockchains are distributed ledgers that enable parties who do not fully trust each other to maintain a set of global states. The parties agree on the existence,…

数据库 · 计算机科学 2017-08-21 Tien Tuan Anh Dinh , Rui Liu , Meihui Zhang , Gang Chen , Beng Chin Ooi , Ji Wang

In recent years blockchain technology has received tremendous attention. Blockchain users are known by a changeable Public Key (PK) that introduces a level of anonymity, however, studies have shown that anonymized transactions can be linked…

密码学与安全 · 计算机科学 2022-02-22 Ali Dorri , Clemence Roulin , Shantanu Pal , Sarah Baalbaki , Raja Jurdak , Salil Kanhere

Cryptocurrencies are poised to revolutionize the modern economy by democratizing commerce. These currencies operate on top of blockchain-based distributed ledgers. Existing permissionless blockchain-based protocols offer unparalleled…

密码学与安全 · 计算机科学 2022-03-25 Anurag Jain , Sanidhay Arora , Sankarshan Damle , Sujit Gujar

Due to their immutable log of information, blockchains can be considered as a transparency-enhancing technology. The immutability, however, also introduces threats and challenges with respect to privacy laws and illegal content. Introducing…

密码学与安全 · 计算机科学 2021-07-01 Erik Daniel , Florian Tschorsch

Blockchain (BC), a by-product of Bitcoin cryptocurrency, has gained immense and wide scale popularity for its applicability in various diverse domains - especially in multifaceted non-monetary systems. By adopting cryptographic techniques…

密码学与安全 · 计算机科学 2020-11-19 Mahdi H. Miraz , Maaruf Ali

Blockchain also known as a distributed ledger technology stores different transactions/operations in a chain of blocks in a distributed manner without needing a trusted third-party. Blockchain is proven to be immutable which helps for…

密码学与安全 · 计算机科学 2019-04-30 Danda B. Rawat , Vijay Chaudhary , Ronald Doku

Open and permissionless blockchains are distributed systems with thousands to tens of thousands of nodes, establishing novel platforms for decentralized applications. When realizing such an application, data might be stored and retrieved…

分布式、并行与集群计算 · 计算机科学 2023-09-25 Felix Härer

Research in blockchain systems has mainly focused on improving security and bridging the performance gaps between blockchains and databases. Despite many promising results, we observe a worrying trend that the blockchain landscape is…

数据库 · 计算机科学 2019-10-23 Tien Tuan Anh Dinh , Anwitaman Datta , Beng Chin Ooi

This paper investigates the evolving relationship between protecting Intellectual Property Rights (IPRs) and blockchain technology. We conducted a comprehensive literature review, supplemented by case study analyses and research paper…

密码学与安全 · 计算机科学 2024-10-14 Rabia Bajwa , Farah Tasnur Meem

Blockchain has empowered computer systems to be more secure using a distributed network. However, the current blockchain design suffers from fairness issues in transaction ordering. Miners are able to reorder transactions to generate…

密码学与安全 · 计算机科学 2025-08-11 Yihang Fu , Zesen Zhuang , Luyao Zhang

The number of blockchain users has tremendously grown in recent years. As an unintended consequence, e-crime transactions on blockchains has been on the rise. Consequently, public blockchains have become a hotbed of research for developing…

密码学与安全 · 计算机科学 2020-10-29 Cuneyt G. Akcora , Sudhanva Purusotham , Yulia R. Gel , Mitchell Krawiec-Thayer , Murat Kantarcioglu

The problem we address is the following: how can a user employ a predictive model that is held by a third party, without compromising private information. For example, a hospital may wish to use a cloud service to predict the readmission…

机器学习 · 计算机科学 2014-12-25 Pengtao Xie , Misha Bilenko , Tom Finley , Ran Gilad-Bachrach , Kristin Lauter , Michael Naehrig

At present, the concept of metaverse has sparked widespread attention from the public to major industries. With the rapid development of blockchain and Web3 technologies, the decentralized metaverse ecology has attracted a large influx of…

密码学与安全 · 计算机科学 2022-12-29 Jiajing Wu , Kaixin Lin , Dan Lin , Ziye Zheng , Huawei Huang , Zibin Zheng

Many blockchain networks aim to preserve the anonymity of validators in the peer-to-peer (P2P) network, ensuring that no adversary can link a validator's identifier to the IP address of a peer due to associated privacy and security…

密码学与安全 · 计算机科学 2025-02-04 Lioba Heimbach , Yann Vonlanthen , Juan Villacis , Lucianna Kiffer , Roger Wattenhofer

Blockchain, as the basis for cryptocurrencies, has received extensive attentions recently. Blockchain serves as an immutable distributed ledger technology which allows transactions to be carried out credibly in a decentralized environment.…

密码学与安全 · 计算机科学 2023-10-10 Min An , Qiyuan Fan , Hao Yu , Haiyang Zhao