A security and performance analysis of proof-based consensus protocols

Autor:	Gustavo F. Camilo, Lucas C. B. Guimaraes, Lucas Airam C. de Souza, Gabriel Antonio F. Rebello, Otto Carlos M. B. Duarte, Guilherme A. Thomaz
Rok vydání:	2021
Předmět:	Protocol (science) business.industry Computer science Probabilistic logic Computer security computer.software_genre Disruptive technology Proof-of-stake Proof-of-work system Consensus model The Internet Electrical and Electronic Engineering Internet of Things business computer
Zdroj:	Annals of Telecommunications. 77:517-537
ISSN:	1958-9395 0003-4347
DOI:	10.1007/s12243-021-00896-2
Popis:	Blockchain is a disruptive technology that will revolutionize the Internet and our way of living, working, and trading. However, the consensus protocols of most blockchain-based public systems show vulnerabilities and performance limitations that hinder the mass adoption of blockchain. This paper presents and compares the main proof-based consensus protocols, focusing on the security and performance of each consensus protocol. Proof-based protocols use the probabilistic consensus model and are more suitable for public environments with many participants, such as the Internet of Things (IoT). We highlight the centralization tendency and the main vulnerabilities of Proof of Work (PoW), Proof of Stake (PoS), and their countermeasures. We also analyze and compare alternative proof-based protocols, such as Proof of Elapsed Time (PoET), Proof of Burn (PoB), Proof of Authority (PoA), and Delegated Proof of Stake (DPoS). Finally, we analyze the security of the IOTA consensus protocol, a DAG-based platform suited for the IoT environment.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2f862fd09b001c5213585f28afe5fb7e https://doi.org/10.1007/s12243-021-00896-2 Zobrazit plný text záznamu Full text from SpringerLink