Consensus algorithms blockchain: a comparative study

A blockchain is a Distributed Ledger Technology that has been defined as a “distributed, shared, encrypted database that serves as an irreversible and incorruptible repository of information. Blockchain can be defined as a peer-to-peer distributed ledger that is cryptographically sec...

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Main Authors:	hattab, Siham, Alyaseen, Imad Fakhri Taha
Format:	Article
Language:	English
Published:	IIUM Press, International Islamic University Malaysia 2019
Subjects:	QA75 Electronic computers. Computer science
Online Access:	http://irep.iium.edu.my/78729/ http://irep.iium.edu.my/78729/ http://irep.iium.edu.my/78729/1/103-Article%20Text-IJPCC.pdf

id	iium-78729
recordtype	eprints
spelling	iium-787292020-02-25T08:27:40Z http://irep.iium.edu.my/78729/ Consensus algorithms blockchain: a comparative study hattab, Siham Alyaseen, Imad Fakhri Taha QA75 Electronic computers. Computer science A blockchain is a Distributed Ledger Technology that has been defined as a “distributed, shared, encrypted database that serves as an irreversible and incorruptible repository of information. Blockchain can be defined as a peer-to-peer distributed ledger that is cryptographically secure, append-only, immutable and updatable only via consensus or agreement among peers. In blockchain platforms, each transaction in the public ledger is verified by consensus of the majority of the system participants in a transparent and secure way. The consensus algorithm refers to the process of attaining an unified agreement on the state of the network in a decentralized way and to facilitate the verification and validation of information being added to the blockchain. This paper aims at providing a comparison between most of the recent consensus algorithms regarding the scalability of the algorithm; the type of blockchain, node identity, the performance of the algorithm (in terms of throughput & latency) and Adversial Tolerance and to deliver a solid basis for discussions about current statistics. In this research, we also presented a new category of the Blockchain consensus algorithms, which consist of three groups as follows; the proof based on Hardware, the proof based on stake, and the proof based on voting. IIUM Press, International Islamic University Malaysia 2019-12 Article PeerReviewed application/pdf en http://irep.iium.edu.my/78729/1/103-Article%20Text-IJPCC.pdf hattab, Siham and Alyaseen, Imad Fakhri Taha (2019) Consensus algorithms blockchain: a comparative study. International Journal on Perceptive and Cognitive Computing (IJPCC), 5 (2). pp. 66-71. E-ISSN 2462-229X https://journals.iium.edu.my/kict/index.php/IJPCC/article/view/103/75
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	QA75 Electronic computers. Computer science
spellingShingle	QA75 Electronic computers. Computer science hattab, Siham Alyaseen, Imad Fakhri Taha Consensus algorithms blockchain: a comparative study
description	A blockchain is a Distributed Ledger Technology that has been defined as a “distributed, shared, encrypted database that serves as an irreversible and incorruptible repository of information. Blockchain can be defined as a peer-to-peer distributed ledger that is cryptographically secure, append-only, immutable and updatable only via consensus or agreement among peers. In blockchain platforms, each transaction in the public ledger is verified by consensus of the majority of the system participants in a transparent and secure way. The consensus algorithm refers to the process of attaining an unified agreement on the state of the network in a decentralized way and to facilitate the verification and validation of information being added to the blockchain. This paper aims at providing a comparison between most of the recent consensus algorithms regarding the scalability of the algorithm; the type of blockchain, node identity, the performance of the algorithm (in terms of throughput & latency) and Adversial Tolerance and to deliver a solid basis for discussions about current statistics. In this research, we also presented a new category of the Blockchain consensus algorithms, which consist of three groups as follows; the proof based on Hardware, the proof based on stake, and the proof based on voting.
format	Article
author	hattab, Siham Alyaseen, Imad Fakhri Taha
author_facet	hattab, Siham Alyaseen, Imad Fakhri Taha
author_sort	hattab, Siham
title	Consensus algorithms blockchain: a comparative study
title_short	Consensus algorithms blockchain: a comparative study
title_full	Consensus algorithms blockchain: a comparative study
title_fullStr	Consensus algorithms blockchain: a comparative study
title_full_unstemmed	Consensus algorithms blockchain: a comparative study
title_sort	consensus algorithms blockchain: a comparative study
publisher	IIUM Press, International Islamic University Malaysia
publishDate	2019
url	http://irep.iium.edu.my/78729/ http://irep.iium.edu.my/78729/ http://irep.iium.edu.my/78729/1/103-Article%20Text-IJPCC.pdf
first_indexed	2023-09-18T21:50:52Z
last_indexed	2023-09-18T21:50:52Z
_version_	1777413759722061824

Consensus algorithms blockchain: a comparative study

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