Analysis of reputation-based mining paradigm under dishonest mining attacks

Since the introduction of Bitcoin, numerous studies on Bitcoin mining attacks have been conducted, and as a result, many countermeasures to these attacks have been proposed. The reputation-based mining paradigm is a comprehensive countermeasure solution to this problem with the goal of regulating th...

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Main Authors: Pouya Pourtahmasbi, Mehrdad Nojoumian
Format: Article
Language:English
Published: Elsevier 2022-06-01
Series:Blockchain: Research and Applications
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2096720922000057
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author Pouya Pourtahmasbi
Mehrdad Nojoumian
author_facet Pouya Pourtahmasbi
Mehrdad Nojoumian
author_sort Pouya Pourtahmasbi
collection DOAJ
description Since the introduction of Bitcoin, numerous studies on Bitcoin mining attacks have been conducted, and as a result, many countermeasures to these attacks have been proposed. The reputation-based mining paradigm is a comprehensive countermeasure solution to this problem with the goal of regulating the mining process and preventing mining attacks. This is accomplished by incentivizing miners to avoid dishonest mining strategies using reward and punishment mechanisms. This model was validated solely based on game theoretical analyses, and the real-world implications of this model are not known due to the lack of empirical data. To shed light on this issue, we designed a simulated mining platform to examine the effectiveness of the reputation-based mining paradigm through data analysis. We implemented block withholding attacks in our simulation and ran the following three scenarios: Reputation mode, non-reputation mode, and no attack mode. By comparing the results from these three scenarios, interestingly, we found that the reputation-based mining paradigm decreases the number of block withholding attacks, and as a result, the actual revenue of individual miners becomes closer to their theoretical expected revenue. In addition, we observed that the confidence interval test can effectively detect block withholding attacks; however, the test also results in a small number of false positive cases. Since the effectiveness of the reputation-based model relies on attack detection, further research is needed to investigate the effect of this model on other dishonest mining strategies.
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spelling doaj.art-3b1bf8dd62454f288363b3199b5142192022-12-22T03:30:24ZengElsevierBlockchain: Research and Applications2666-95362022-06-0132100065Analysis of reputation-based mining paradigm under dishonest mining attacksPouya Pourtahmasbi0Mehrdad Nojoumian1Corresponding author.; Florida Atlantic University, Department of Electrical Engineering and Computer Science, 777 Glades Road, Boca Raton, FL, 33431, USACorresponding author.; Florida Atlantic University, Department of Electrical Engineering and Computer Science, 777 Glades Road, Boca Raton, FL, 33431, USASince the introduction of Bitcoin, numerous studies on Bitcoin mining attacks have been conducted, and as a result, many countermeasures to these attacks have been proposed. The reputation-based mining paradigm is a comprehensive countermeasure solution to this problem with the goal of regulating the mining process and preventing mining attacks. This is accomplished by incentivizing miners to avoid dishonest mining strategies using reward and punishment mechanisms. This model was validated solely based on game theoretical analyses, and the real-world implications of this model are not known due to the lack of empirical data. To shed light on this issue, we designed a simulated mining platform to examine the effectiveness of the reputation-based mining paradigm through data analysis. We implemented block withholding attacks in our simulation and ran the following three scenarios: Reputation mode, non-reputation mode, and no attack mode. By comparing the results from these three scenarios, interestingly, we found that the reputation-based mining paradigm decreases the number of block withholding attacks, and as a result, the actual revenue of individual miners becomes closer to their theoretical expected revenue. In addition, we observed that the confidence interval test can effectively detect block withholding attacks; however, the test also results in a small number of false positive cases. Since the effectiveness of the reputation-based model relies on attack detection, further research is needed to investigate the effect of this model on other dishonest mining strategies.http://www.sciencedirect.com/science/article/pii/S2096720922000057BlockchainCryptocurrencyMining attacksBlock withholding attackTrust modelsReputation systems
spellingShingle Pouya Pourtahmasbi
Mehrdad Nojoumian
Analysis of reputation-based mining paradigm under dishonest mining attacks
Blockchain: Research and Applications
Blockchain
Cryptocurrency
Mining attacks
Block withholding attack
Trust models
Reputation systems
title Analysis of reputation-based mining paradigm under dishonest mining attacks
title_full Analysis of reputation-based mining paradigm under dishonest mining attacks
title_fullStr Analysis of reputation-based mining paradigm under dishonest mining attacks
title_full_unstemmed Analysis of reputation-based mining paradigm under dishonest mining attacks
title_short Analysis of reputation-based mining paradigm under dishonest mining attacks
title_sort analysis of reputation based mining paradigm under dishonest mining attacks
topic Blockchain
Cryptocurrency
Mining attacks
Block withholding attack
Trust models
Reputation systems
url http://www.sciencedirect.com/science/article/pii/S2096720922000057
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