@inproceedings{ee0d8a6a338c476db1135675b7dad563,
title = "Contextualizing consensus protocols in blockchain: A short survey",
abstract = "Consensus protocols are mechanisms that enable a group of entities to reach an agreement on a specific subject. In blockchain systems, consensus protocols are the cornerstone of achieving security and scalability. They not only enable nodes in the network to agree on the valid information that can be added to the ledger while keeping all nodes synchronized, they also establish the sequence of order in which blocks (and consequently transactions) are affixed. In this paper, we provide a comprehensive review of the working principles of the most commonly used consensus protocols in blockchain-based cryptocurrencies. We categorize them based on their permission requirements and perform a thorough comparative evaluation. More specifically, we identify computational difficulty, barrier for entry, platform utilization, and weaknesses in terms of scalability and fairness.",
keywords = "Blockchain-cryptocurrencies-consensus",
author = "Golam Bashar and Graham Hill and Subroto Singha and Praneeth Marella and Dagher, \{Gaby G.\} and Jidong Xiao",
note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 1st IEEE International Conference on Trust, Privacy and Security in Intelligent Systems and Applications, TPS-ISA 2019 ; Conference date: 12-12-2019 Through 14-12-2019",
year = "2019",
month = dec,
doi = "10.1109/TPS-ISA48467.2019.00031",
language = "American English",
series = "Proceedings - 1st IEEE International Conference on Trust, Privacy and Security in Intelligent Systems and Applications, TPS-ISA 2019",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "190--195",
booktitle = "Proceedings - 1st IEEE International Conference on Trust, Privacy and Security in Intelligent Systems and Applications, TPS-ISA 2019",
address = "United States",
}