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Blockchains use peer-to-peer networks for disseminating information among peers, but these networks currently do not have any provable guarantees for desirable properties such as Byzantine fault tolerance, good connectivity and small…

分布式、并行与集群计算 · 计算机科学 2022-02-01 Vijeth Aradhya , Seth Gilbert , Aquinas Hobor

Decentralization, which has backed the hyper growth of many blockchains, comes at the cost of scalability. To understand this fundamental limitation, this paper proposes a quantitative measure of blockchain decentralization, and discusses…

密码学与安全 · 计算机科学 2018-10-09 Shumo Chu , Sophia Wang

Blockchain is one of the emerging technologies with the potential to disrupt many application domains. Cloud is an on-demand service paradigm facilitating the availability of shared resources for data storage and computation. In recent…

密码学与安全 · 计算机科学 2020-12-07 Soumik Sarker , Arnob Kumar Saha , Md Sadek Ferdous

Decentralized computation outsourcing should allow anyone to access the large amounts of computational power that exists in the Internet of Things. Unfortunately, when trusted third parties are removed to achieve this decentralization,…

分布式、并行与集群计算 · 计算机科学 2022-07-29 Conor McMenamin , Vanesa Daza

As an append-only distributed database, blockchain is utilized in a vast variety of applications including the cryptocurrency and Internet-of-Things (IoT). The existing blockchain solutions show downsides in communication and storage…

分布式、并行与集群计算 · 计算机科学 2021-09-02 Yahya Hassanzadeh-Nazarabadi , Alptekin Küpçü , Öznur Özkasap

This review focuses on the evolution of cloud computing and distributed ledger technologies (blockchains) over the last decade. Cloud computing relies mainly on a conceptually centralized service provisioning model, while blockchain…

分布式、并行与集群计算 · 计算机科学 2018-05-15 Magnus Westerlund , Nane Kratzke

Blockchain scalability can be complicated and costly. As enterprises begin to adopt blockchain technology to solve business problems, there are valid concerns if blockchain applications can support the transactional demands of production…

分布式、并行与集群计算 · 计算机科学 2019-12-25 Grant Chung , Luc Desrosiers , Manav Gupta , Andrew Sutton , Kaushik Venkatadri , Ontak Wong , Goran Zugic

Blockchain is a decentralized, distributed ledger technology that ensures transparency, security, and immutability through cryptographic techniques. However, advancements in quantum computing threaten the security of classical cryptographic…

密码学与安全 · 计算机科学 2026-01-14 Nicholas J. C. Papadopoulos

Within the last few years, a countless number of blockchain systems have emerged on the market, each one claiming to revolutionize the way of distributed transaction processing in one way or the other. Many blockchain features, such as…

分布式、并行与集群计算 · 计算机科学 2018-11-01 Ankur Sharma , Felix Martin Schuhknecht , Divya Agrawal , Jens Dittrich

Recent research in Internet of things has been widely applied for industrial practices, fostering the exponential growth of data and connected devices. Henceforth, data-driven AI models would be accessed by different parties through certain…

密码学与安全 · 计算机科学 2022-07-12 Jun-Teng Yang , Wen-Yuan Chen , Che-Hua Li , Scott C. -H. Huang , Hsiao-Chun Wu

Recently we could see several institutions coming together to create consortium based blockchain networks such as Hyperledger. Although for applications of blockchain such as Bitcoin, Litcoin, etc. the majority-attack might not be a great…

密码学与安全 · 计算机科学 2018-06-15 Somdip Dey

Fog computing is a paradigm for distributed computing that enables sharing of resources such as computing, storage and network services. Unlike cloud computing, fog computing platforms primarily support {\em non-functional properties} such…

密码学与安全 · 计算机科学 2021-02-18 Arvind W. Kiwelekar , Pramod Patil , Laxman D. Netak , Sanjay U Waikar

Data is of unprecedented importance today. The most valuable companies of today treat data as a commodity, which they trade and earn revenues. To facilitate such trading, data marketplaces have emerged. Present data marketplaces are…

密码学与安全 · 计算机科学 2019-09-30 Prabal Banerjee , Sushmita Ruj

Today's permissioned blockchain systems come in a stand-alone fashion and require the users to integrate yet another full-fledged transaction processing system into their already complex data management landscape. This seems odd as…

数据库 · 计算机科学 2019-12-11 Felix Martin Schuhknecht , Ankur Sharma , Jens Dittrich , Divya Agrawal

Cloud computing is a particular implementation of distributed computing. It inherited many properties of distributed computing such as scalability, reliability and distribution transparency. The transparency middle layer abstracts the…

分布式、并行与集群计算 · 计算机科学 2021-02-11 Bola Abimbola

The internet faces a sovereignty crisis due to power concentration and data growth among a few hyperscalers, leading to centralization and loss of user control. This consolidation risks censorship and creates single points of failure. While…

Cloud computing is a new computational paradigm that offers an innovative business model for organizations to adopt IT without upfront investment. Despite the potential gains achieved from the cloud computing, the model security is still…

软件工程 · 计算机科学 2016-09-06 Mohamed Almorsy , John Grundy , Ingo Müller

Blockchain technologies are facing a scalability challenge, which must be overcome to guarantee a wider adoption of the technology. This scalability issue is mostly caused by the use of consensus algorithms to guarantee the total order of…

分布式、并行与集群计算 · 计算机科学 2022-06-24 Margarita Capretto , Martín Ceresa , Antonio Fernández Anta , Antonio Russo , César Sánchez

Enterprises have been attracted by the capability of blockchains to provide a single source of truth for workloads that span companies, geographies, and clouds while retaining the independence of each party's IT operations. However, so far…

软件工程 · 计算机科学 2021-10-19 Johannes Sedlmeir , Tim Wagner , Emil Djerekarov , Ryan Green , Johannes Klepsch , Shruthi Rao

Many researchers have proposed replacing the aggregation server in federated learning with a blockchain system to improve privacy, robustness, and scalability. In this approach, clients would upload their updated models to the blockchain…

分布式、并行与集群计算 · 计算机科学 2023-11-15 Yongding Tian , Zhuoran Guo , Jiaxuan Zhang , Zaid Al-Ars