Questions tagged [byzantine-fault-tolerance]

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PBFT algorithm - how do we know how many nodes are faulty?

I am reading this article about PBFT and I have trouble understanding how it can be used in practice. If we don't how many nodes are faulty (which I believe is a valid assumption), then how can we ...
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Can you call PoW 2f resilient?

Can you call PoW 2f resilient if all nodes would have same hash power? PoW is called eventually consistence. Even in an asynchronous network. The only attack possible is 51% attack. Further, there is ...
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How to detect a consensus is BFT or not? [closed]

Can we divide consensus algorithms into BFT (Byzantine Fault Tolerant) and non-BFT ? If so, How to detect a consensus is BFT or non-BFT ? Is there any non-BFT consensus algorithm example ?