BFT in Blockchains: From Protocols to Use Cases

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https://dl.acm.org/doi/abs/10.1145/3503042

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https://doi.org/10.1145/3503042
 http://hdl.handle.net/11603/24091

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UMBC Information Systems Department
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https://orcid.org/0000-0002-1385-6807

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2021-12-22

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journal articles
postprints
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Citation of Original Publication

Wang, Xin et al. BFT in Blockchains: From Protocols to Use Cases.ACM Computing Surveys (Nov. 2021). https://doi.org/10.1145/3503042.

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Abstract

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