BFT Consensus Algorithms
Xiaojun Zhang, Weiyu Zhong, Ce Yang, Lin Chen, Jing Liao, Naixue N. Xiong · 2023
With the advent of Bitcoin, the blockchain as the underlying technology of Bitcoin has entered people’s field of vision. In recent years, the blockchain and its related technologies have developed rapidly. The consensus algorithm is the key to the realization of blockchain technology. There will be Byzantine nodes in the process of reaching consensus among the nodes in the blockchain. Byzantine nodes are tolerated in the blockchain to achieve consensus. Consensus is an essential performance of consensus algorithms. This paper first introduces blockchain technology and the application of consensus algorithms in it; secondly, introduces the classic PBFT algorithm; then, introduces some existing consensus algorithms; finally summarizes the research status and challenges of consensus algorithms, and analyzes its Prospects.