January 2019
Beginner to intermediate
372 pages
11h 17m
English
Content preview from Foundations of Blockchain
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Byzantine Fault Tolerance (BFT) consensus models
Consensus algorithms were designed in distributed systems to tolerate Byzantine faults relating to the Byzantine generals' problem (refer to Chapter 1, Introduction, for a definition of the Byzantine generals' problem). Though PoW and PoS have tolerance to Byzantine faults, it comes at a cost. Several variants of Byzantine Fault Tolerance (BFT) consensus models have been proposed as solutions to this problem in untrusted distributed networks.