| Full text | |
| Author(s): |
Rebello, Gabriel Antonio F.
[1]
;
Camilo, Gustavo F.
[1]
;
Guimaraes, Lucas C. B.
[1]
;
de Souza, Lucas Airam C.
[1]
;
Thomaz, Guilherme A.
[1]
;
Duarte, Otto Carlos M. B.
[1]
Total Authors: 6
|
| Affiliation: | [1] Univ Fed Rio de Janeiro, Grp Teleinformat & Automacao, Rio De Janeiro - Brazil
Total Affiliations: 1
|
| Document type: | Journal article |
| Source: | ANNALS OF TELECOMMUNICATIONS; NOV 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
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. (AU) | |
| FAPESP's process: | 14/50937-1 - INCT 2014: on the Internet of the Future |
| Grantee: | Fabio Kon |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 15/24485-9 - Future internet for smart cities |
| Grantee: | Fabio Kon |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 18/23292-0 - ACCRUE-SFI project: advanced collaborative research infrastructure for secure future internet |
| Grantee: | Otto Carlos Muniz Bandeira Duarte |
| Support Opportunities: | Regular Research Grants |