Bazaar-Blockchain: A Blockchain for Bazaar-Based Cloud Markets

Pittl, Benedikt; Mach, Werner; Schikuta, Erich

doi:10.1109/scc.2018.00019

Cited by 12 publications

(6 citation statements)

References 12 publications

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“…Pittl et al [29] presented a trading platform termed as Bazaar-Blockchain, which is an improved version of Bazaar-Extension [30]. This trading platform can be recognised as an e-commerce platform designed for cloud environments, and it allows the customer and the cloud service provider to negotiate the price and the terms of deals.…”

Section: ) Energy Tradingmentioning

confidence: 99%

A Survey on Using Blockchain in Trade Supply Chain Solutions

Juma

Shaalan²,

Kamel

2019

IEEE Access

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Blockchain has emerged as a promising technology to ensure trust between parties. By using this technology, we can establish a secure communication paradigm, where data integrity and immutability can be guaranteed. These inherited features underline blockchain as a suitable technology to optimise the adopted processing model in several domains, such as health, trade supply chain and food safety. In this paper, we present a detailed overview of the use of blockchain technology in (international) trade supply chains. Furthermore, the discussed proposals have been classified based on the target application scenarios. Our goal is to clarify the benefits of applying this technology to the trading domain and highlight the challenges that are associated with applying this technology to optimise the trading domain. Accordingly, we underline several issues that occur during the designing of the blockchain solution to optimise the (international) trade supply chain.INDEX TERMS Blockchain technology, distributed ledger, Dubai customs, trade supply chain, world customs organization.

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Section: ) Energy Tradingmentioning

confidence: 99%

A Survey on Using Blockchain in Trade Supply Chain Solutions

Juma

Shaalan²,

Kamel

2019

IEEE Access

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“…Blockchain is also used for automated processes in different domains. For example, in [2], the authors presented a blockchain-based solution for the negotiation process for the provisioning of the cloud resources being provided by any cloud service provider. The proposed solution offers tamper-proof automated negotiation terms dynamically.…”

Section: Related Workmentioning

confidence: 99%

“…The transparency and immutability are enforced by enabling the nodes to view and maintain the ledger, which can only be altered with other mining nodes' consensus. Some initial work has been done in the blockchain for SLAs, such as a blockchain-based framework for the negotiation of cloud services [2], implementation of SLAs in supply chain management system [3], validation of SLA violations [4], payment of the penalties in case of SLA violations [5,6], the integrity of SLA [7] and secure monitoring of SLA [8]. However, further work is required to investigate challenges to achieve end to end SLA monitoring and enforcement in a trustworthy manner.…”

Section: Introductionmentioning

confidence: 99%

Blockchain-enabled real-time SLA monitoring for cloud-hosted services

et al. 2021

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Cloud computing is an important technology for businesses and individual users to obtain computing resources over the Internet on-demand and flexibly. Although cloud computing has been adopted across diverse applications, the owners of time-and-performance critical applications require cloud service providers’ guarantees about their services, such as availability and response times. Service Level Agreements (SLAs) are a mechanism to communicate and enforce such guarantees typically represented as service level objectives (SLOs), and financial penalties are imposed on SLO violations. Due to delays and inaccuracies caused by manual processing, an automatic method to periodically verify SLA terms in a transparent and trustworthy manner is fundamental to effective SLA monitoring, leading to the acceptance and credibility of such service to the customers of cloud services. This paper presents a blockchain-based distributed infrastructure that leverages fundamental blockchain properties to achieve immutable and trustworthy SLA monitoring within cloud services. The paper carries out an in-depth empirical investigation for the scalability of the proposed system in order to address the challenge of transparently enforcing real-time monitoring of cloud-hosted services leveraging blockchain technology. This will enable all the stakeholders to enforce accurate execution of SLA without any imprecisions and delays by maintaining an immutable ledger publicly across blockchain network. The experimentation takes into consideration several attributes of blockchain which are critical in achieving optimum performance. The paper also investigates key characteristics of these factors and their impact to the behaviour of the system for further scaling it up under various cases for increased service utilization.

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“…First, in the service combination, [37] proposed a service composition strategy based on the service overlay networks (SON) theory and designed an efficient service path generation algorithm across the service overlay layer. Second, in the service fees, [38] proposed a blockchain concept of market negotiation, aiming to solve the problem of multiple rounds of a bilateral negotiation between consumers and cloud service transactions in the future. Reference [39] introduced the fair payment framework BPay of cloud computing outsourcing services based on the blockchain, which was compatible with bitcoin blockchain and ethereum blockchain.…”

Section: Related Workmentioning

confidence: 99%

AuthPrivacyChain: A Blockchain-Based Access Control Framework With Privacy Protection in Cloud

et al. 2020

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Cloud is a computing model that provides sharing and supports ubiquitous on-demand access computing, providing new data processing and services for many industries, significantly reducing user computing and storage costs, and improving ease of use. With the development of cloud-scale and intensification, cloud security has become an essential issue in the field of cloud computing. Access control is one of the critical security technologies for protecting sensitive data stored in the cloud by enterprises and individuals. Since the centralized access control mechanism is adopted in the cloud, the sensitive data in the cloud are easy to be tampered with or leaked by hackers or cloud internal managers. To address this issue, we propose a blockchain-based access control framework with privacy protection called AuthPrivacyChain. Firstly, we use the account address of the node in blockchain as the identity, and at the same time, redefine the access control permission of data for the cloud, which is encrypted and stored in blockchain. After that, we design processes of access control, authorization, and authorization revocation in AuthPrivacyChain. Finally, we implement AuthPrivacyChain based on enterprise operation system (EOS), and the results show that AuthPrivacyChain can not only prevent hackers and administrators from illegally accessing resources, but also protect authorized privacy. INDEX TERMS Cloud computing, cloud security, access control, blockchain, privacy protection.

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Bazaar-Blockchain: A Blockchain for Bazaar-Based Cloud Markets

Cited by 12 publications

References 12 publications

A Survey on Using Blockchain in Trade Supply Chain Solutions

A Survey on Using Blockchain in Trade Supply Chain Solutions

Blockchain-enabled real-time SLA monitoring for cloud-hosted services

AuthPrivacyChain: A Blockchain-Based Access Control Framework With Privacy Protection in Cloud

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