Implementing of forking after withholding FAW attack on bitcoin system

Nowadays many applications have employed the blockchain technology from sam- ple cryptocurrency to smart contracts applications. Bitcoin is one of the cryp- tocurrency application and digital payment system. It is considered as the first decentralized digital currency system. It was invented by u...

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Main Author:	Alahmadi, Ahmed Mohammed A.
Format:	Thesis
Language:	English
Published:	2018
Subjects:	Databases Blockchains (Databases)
Online Access:	http://psasir.upm.edu.my/id/eprint/68967/1/FSKTM%202018%2040%20-%20IR.pdf
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id	my-upm-ir.68967
record_format	uketd_dc
spelling	my-upm-ir.689672019-06-19T03:24:38Z Implementing of forking after withholding FAW attack on bitcoin system 2018-07 Alahmadi, Ahmed Mohammed A. Nowadays many applications have employed the blockchain technology from sam- ple cryptocurrency to smart contracts applications. Bitcoin is one of the cryp- tocurrency application and digital payment system. It is considered as the first decentralized digital currency system. It was invented by unidentified person or group under the name of Satoshi Nakamoto in 2009 (Nakamoto, 2008). The most three features should be achieved by Bitcoin are decentralized, users anonymity, and consensus. In order to achieve these vital features the Bitcoin system should be provably secure against the attacks. Many attacks have been proposed to change unfairly the reward system of the mining pool and allow the malicious miners to earn undue wage. Selfish Attack, Block Withholding (BWH) Attack and Fork- ing After Withholding (FAW) Attack are three attacks which abusing the reward system and letting the infiltration miners to receive un unearned profits and as a sequence this will affect the decentralized feature of the Bitcoin system. Some studies proposed a solution for Selfish Attack and Block Withholding attack such (Eyal and Sirer, 2014b) and (Bag et al., 2017). FAW attack is first introduced by (Kwon et al., 2017) where this attack combines two attacks: Selfish and BWH attacks. In order to come up with a solution for FAW attack (Kwon et al., 2017) propose partial countermeasures for preventing their FAW attack. However, their solution is neither perfect nor practical. Therefore this study addresses this attack and analyzes its strategy then come up with a prevention solution. The result of this study shows that our prevention solution is practical and more effcient. Databases Blockchains (Databases) 2018-07 Thesis http://psasir.upm.edu.my/id/eprint/68967/ http://psasir.upm.edu.my/id/eprint/68967/1/FSKTM%202018%2040%20-%20IR.pdf text en public masters Universiti Putra Malaysia Databases Blockchains (Databases)
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
topic	Databases Blockchains (Databases)
spellingShingle	Databases Blockchains (Databases) Alahmadi, Ahmed Mohammed A. Implementing of forking after withholding FAW attack on bitcoin system
description	Nowadays many applications have employed the blockchain technology from sam- ple cryptocurrency to smart contracts applications. Bitcoin is one of the cryp- tocurrency application and digital payment system. It is considered as the first decentralized digital currency system. It was invented by unidentified person or group under the name of Satoshi Nakamoto in 2009 (Nakamoto, 2008). The most three features should be achieved by Bitcoin are decentralized, users anonymity, and consensus. In order to achieve these vital features the Bitcoin system should be provably secure against the attacks. Many attacks have been proposed to change unfairly the reward system of the mining pool and allow the malicious miners to earn undue wage. Selfish Attack, Block Withholding (BWH) Attack and Fork- ing After Withholding (FAW) Attack are three attacks which abusing the reward system and letting the infiltration miners to receive un unearned profits and as a sequence this will affect the decentralized feature of the Bitcoin system. Some studies proposed a solution for Selfish Attack and Block Withholding attack such (Eyal and Sirer, 2014b) and (Bag et al., 2017). FAW attack is first introduced by (Kwon et al., 2017) where this attack combines two attacks: Selfish and BWH attacks. In order to come up with a solution for FAW attack (Kwon et al., 2017) propose partial countermeasures for preventing their FAW attack. However, their solution is neither perfect nor practical. Therefore this study addresses this attack and analyzes its strategy then come up with a prevention solution. The result of this study shows that our prevention solution is practical and more effcient.
format	Thesis
qualification_level	Master's degree
author	Alahmadi, Ahmed Mohammed A.
author_facet	Alahmadi, Ahmed Mohammed A.
author_sort	Alahmadi, Ahmed Mohammed A.
title	Implementing of forking after withholding FAW attack on bitcoin system
title_short	Implementing of forking after withholding FAW attack on bitcoin system
title_full	Implementing of forking after withholding FAW attack on bitcoin system
title_fullStr	Implementing of forking after withholding FAW attack on bitcoin system
title_full_unstemmed	Implementing of forking after withholding FAW attack on bitcoin system
title_sort	implementing of forking after withholding faw attack on bitcoin system
granting_institution	Universiti Putra Malaysia
publishDate	2018
url	http://psasir.upm.edu.my/id/eprint/68967/1/FSKTM%202018%2040%20-%20IR.pdf
_version_	1747812654263566336

Implementing of forking after withholding FAW attack on bitcoin system

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