BFT in Blockchains: From Protocols to Use Cases

A blockchain is a distributed system that achieves strong security guarantees in storing, managing, and processing data. All blockchains achieve common goal: building decentralized provides trustworthy service an untrustworthy environment. builds Byzantine fault-tolerant (BFT) which nodes run protocol to reach agreement on the state. In this article, we focus research of BFT protocols. particular, categorize protocols according both models workflow. We seek answer these important questions: How has evolved past four decades, especially with rise blockchains? What are driven needs for future?