Hybrid Blockchain Design for Privacy Preserving Crowdsourcing Platform

Zhu, Saide; Hu, Huafu; Yingshu, Li; Li, Wei

doi:10.1109/blockchain.2019.00013

Cited by 28 publications

(13 citation statements)

References 17 publications

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“…ZebraLancer is another platform that protects user privacy, but it depends on a trusted third party for registration of identities [45]. A novel hybrid blockchain-based crowdsourcing platform is proposed to ensure decentralization and privacy [46]. The platform consists of a hybrid structure of blockchain and dual consensus protocols to ensure secure communication among requesters and workers.…”

Section: ) Task Managementmentioning

confidence: 99%

Formal Modeling and Verification of a Blockchain-Based Crowdsourcing Consensus Protocol

et al. 2022

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Crowdsourcing is an effective technique that allows humans to solve complex problems that are hard to accomplish by automated tools. Some significant challenges in crowdsourcing systems include avoiding security attacks, effective trust management, and ensuring the system's correctness. Blockchain is a promising technology that can be efficiently exploited to address security and trust issues. The consensus protocol is a core component of a blockchain network through which all the blockchain peers achieve an agreement about the state of the distributed ledger. Therefore, its security, trustworthiness, and correctness have vital importance. This work proposes a Secure and Trustworthy Blockchain-based Crowdsourcing (STBC) consensus protocol to address these challenges. Model checking is an effective and automatic technique based on formal methods that is utilized to ensure the correctness of STBC consensus protocol. The proposed consensus protocol's formal specification is described using Communicating Sequential Programs (CSP#). Safety, fault tolerance, leader trust, and validators' trust are important properties for a consensus protocol, which are formally specified through Linear Temporal Logic (LTL) to prevent several security attacks, such as blockchain fork, selfish mining, and invalid block insertion. Process Analysis Toolkit (PAT) is utilized for the formal verification of the proposed consensus protocol.

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Section: ) Task Managementmentioning

confidence: 99%

Formal Modeling and Verification of a Blockchain-Based Crowdsourcing Consensus Protocol

et al. 2022

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“…Different organizations assign projects to the developers through the internet and the developers send back that project after completion and receive his or her payment. Requirement negotiation in crowds sourcing is a complex task because it needs the synchronizations of time, location, and understanding between stakeholders [45]. Most of the time, stakeholders fail to understand each other's point of view and have conflicts.…”

Section: Crowdsourcingmentioning

confidence: 99%

“…[73] Using air-gapped wallet techniques Most secure implementation possible, provides an upper bound on wallet security, can help the user identify the weakest parts of their air-gapped wallet scheme Wallet analysis and quantification [71] Propose a compacted DAG-based blockchain protocol CoDAG that greatly improves the throughput and performance of blockchain Improve the linear structure of traditional blockchain protocol Tune the parameters for better performance; combine with hybrid consensus to improve the throughput further [45] Propose a novel hybrid blockchain crowdsourcing platform to achieve decentralization and privacy preservation Ensure secure communication between their users and the workers, decentralization, and privacy preservation Test the performance of the public chain as well as the interaction between the public chain and the subchains [58] Proposed system uses big data processing techniques Provides a secure, robust, and scalable way to process SQL queries over any blockchain Time delays [16] Proposed a blockchain for mobile communication Secure communication Techniques discussed are time-consuming, not secure [79] Discussing blockchain achievements and future work Helps to find future work in blockchain Other elicitation techniques can also be used, requirement validation is not used [20] Combining the transaction link of energy "Internet with blockchain technology" "Can effectively solve the transaction friction, maintain the order of the market, and guarantee the legitimacy of the transaction" Not covering all the application areas [44] "The principle of fast authentication with an APG-PBFT algorithm is present in this paper Can reduce the authentication frequency Not prioritized efficiently, time consuming [59] Identify the cost of verification and networking Gives an overview of cost factors of blockchain Repetitions in the model, not secure, complex [64] Presents blockchain and compares the various platforms on which blockchain can be implemented Illustrates the use of blockchain applications for building the secure infrastructure of cloud computing Techniques discussed are time consuming, not secure…”

Section: Ref Key Factorsmentioning

confidence: 99%

Reliable Requirements Engineering Practices for COVID-19 Using Blockchain

Shahzad

Javed²,

Shaikh

et al. 2021

Sustainability

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Improvement in the requirements for engineering practices is needed in areas such as requirement elicitation, validation, prioritization, and negotiations between stakeholders to create successful projects for COVID-19 (coronavirus disease 2019) software. Many algorithms and techniques are used to create quality software projects, but they still need more improvement to work effectively for global pandemic COVID-19 software. By improving the reliability of requirement engineering practices using blockchain-based technology, the software will be reliable and will make it easier for the users working in a lockdown situation because of COVID-19. Therefore, our purpose is to identify the factors for reliable software engineering practices using blockchain-oriented technology for COVID-19 software. A systematic literature review is conducted to identify challenges and offer solutions. Through using blockchain-based technology for requirement engineering practices, the requirements will be gathered accurately and validated, and the conflicts between stakeholders will also be solved. It will improve the quality and reliability of COVID-19 software projects, which will help society work effectively from home. Improvement in the quality and reliability of COVID-19 software will improve users’ interest, and their working capacity will be increased.

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“…They provide flexible control over the blockchain and are suitable for domains such as finance, supply chains, medical records, etc. [18,26,27].…”

Section: Fundamentals Of Blockchain Technologymentioning

confidence: 99%

Synergy of Blockchain Technology and Data Mining Techniques for Anomaly Detection

2021

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Blockchain and Data Mining are not simply buzzwords, but rather concepts that are playing an important role in the modern Information Technology (IT) revolution. Blockchain has recently been popularized by the rise of cryptocurrencies, while data mining has already been present in IT for many decades. Data stored in a blockchain can also be considered to be big data, whereas data mining methods can be applied to extract knowledge hidden in the blockchain. In a nutshell, this paper presents the interplay of these two research areas. In this paper, we surveyed approaches for the data mining of blockchain data, yet show several real-world applications. Special attention was paid to anomaly detection and fraud detection, which were identified as the most prolific applications of applying data mining methods on blockchain data. The paper concludes with challenges for future investigations of this research area.

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Hybrid Blockchain Design for Privacy Preserving Crowdsourcing Platform

Cited by 28 publications

References 17 publications

Formal Modeling and Verification of a Blockchain-Based Crowdsourcing Consensus Protocol

Formal Modeling and Verification of a Blockchain-Based Crowdsourcing Consensus Protocol

Reliable Requirements Engineering Practices for COVID-19 Using Blockchain

Synergy of Blockchain Technology and Data Mining Techniques for Anomaly Detection

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