Permissionless reputation‐based consensus algorithm for blockchain

Abdo, Jacques Bou; Sibai, Rayane El; Kambhampaty, Krishna; Demerjian, Jacques

doi:10.1002/itl2.151

Cited by 9 publications

(1 citation statement)

References 12 publications

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“…PoX can be extended to another consensus protocol known as Proof of reputation, where a reputation module can be integrated with a PoX protocol (Proof-of-Elapsed-Time). PoRX [39], therefore, makes use of two factors for choosing block issuers: reputation and another factor as determined by the base PoX, such as a stake, activity, elapsed time, and work.…”

Section: E Proof Of Reputation-x (Porx)mentioning

confidence: 99%

A Survey on Consensus Algorithms in Blockchain-Based Applications: Architecture, Taxonomy, and Operational Issues

Islam

Hossain

et al. 2023

IEEE Access

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Recently, Blockchain-based applications have become immensely popular because of limited reliance on a single entity, unlike a centralized system. However, reaching a consensus among blockchain networks is a challenging and vital aspect of blockchain-based applications. There are various types of blockchain networks for different kinds of application scenarios. Among all of them, the consensus algorithm is the most crucial part of reaching an agreement in the complex blockchain network. Over the years, researchers have focused on dealing with the challenges like distributed computing, storage, transaction speed, security, validity, interoperability, and many more. However, only some of them are appropriate for all domains. Therefore, this paper presents an extensive study of different types of consensus protocols used in existing blockchain solutions with the strength and limitations of each algorithm. We also provide an inherent comparison among different algorithms to understand consensus protocol selection better. Moreover, we investigate operational and interoperability issues in existing blockchain-based applications to understand challenges and provide recommendations for future developers.INDEX TERMS Blockchain, consensus algorithm, interoperability, cross-chain transactions, architecture, operational issues, applications, research directions. I. INTRODUCTIONT HE blockchain concept was first introduced by Haber and Stornetta [1], which is considered one of the technologies with the most potential. After that the introduction of Bitcoin by Nakamoto [2], it has attracted intense attention from all over the world. In Blockchain systems, different cryptographic protocols, like hash functions, digital signatures, etc., are used to maintain the authenticity and security of the data. Blockchain is a distributed ledger system that keeps data secure from unauthorized access. Blockchain technology allows users to add, view, and validate transactions to the distributed ledger. These transactions often take place with the consent of all involved users. Blockchain uses a consensus mechanism to ensure that all transactions are accurate.In a trustless environment, blockchain provides users with desirable qualities like decentralization, autonomy, integrity, immutability, verification, fault-tolerance, anonymity, auditability, and transparency, which have received significant academic and industrial attention recently years [3]-[6]. However, the blockchain system is trustless and ensures blockchain-enabled trust through other cryptographic peerto-peer communication in the decentralized network. Further verification and validation mechanisms are employed

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Section: E Proof Of Reputation-x (Porx)mentioning

confidence: 99%

A Survey on Consensus Algorithms in Blockchain-Based Applications: Architecture, Taxonomy, and Operational Issues

Islam

Hossain

et al. 2023

IEEE Access

View full text Add to dashboard Cite

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Permissionless proof‐of‐reputation‐X: A hybrid reputation‐based consensus algorithm for permissionless blockchains

Abdo

Sibai

Demerjian

2020

Trans Emerging Tel Tech

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Over the past years, blockchain technology has become more and more interesting since its ability to carry out transactions without any mediator. To ensure the transactions' reliability, consensus algorithms are adopted by blockchain technology. However, due to the failure of consensus algorithms in managing nodes' identities, blockchain technology is considered inappropriate for many applications. In this article, we propose the permissionless proof‐of‐reputation‐X (PL‐PoRX) that upgrades an existing consensus algorithm, the proof‐of‐reputation‐X (PoRX). PL‐PoRX replaces the trusted identity database in PoRX with a new admission process to make the algorithm suitable for permissionless blockchains, while maintaining PoRX's reputation mechanism. Several experiments are conducted to show the efficiency of our approach under different scenarios. We also debate the security model of the new protocol and study its time complexity. The results show that PL‐PoRX decreases the number of blocks issued by malicious miners, and help benign miners build reputation faster.

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A Survey of Consensus Mechanism Based on Reputation Model

Cheng

et al. 2022

Lecture Notes in Computer Science

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Permissionless reputation‐based consensus algorithm for blockchain

Cited by 9 publications

References 12 publications

A Survey on Consensus Algorithms in Blockchain-Based Applications: Architecture, Taxonomy, and Operational Issues

A Survey on Consensus Algorithms in Blockchain-Based Applications: Architecture, Taxonomy, and Operational Issues

Permissionless proof‐of‐reputation‐X: A hybrid reputation‐based consensus algorithm for permissionless blockchains

A Survey of Consensus Mechanism Based on Reputation Model

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