Questions tagged [qbft]

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What's the communication complexity of round-change in Quorum's QBFT implementation

As stated in the Istanbul BFT paper, Istanbul BFT "has O(n^2) communication complexity during both normal case operation and round changes". The QBFT spec also states a "message ...
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Using Hyperledger QBFT suitable for public chains?

I am thing process of creating my own public EVM network, i found the best approach available would be using QBFT on HyperLedger Besu as it is Proof Of Authority and secure for production uses. But ...
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Block propagation delay

I have some doubts related to block propagation time. In a network built with Hyperledger Besu, I have 4 AWS machines, 3 in Paris and 1 more in Oregon. The block propagation times are crazy, like 2 ...
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How BFT resistant is Ethereum?

How BFT resistant is Ethereum? And could anyone explain why this is important and if it will change from PoW to PoS? Thanks!
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Consortium networks - safety concerns

After studying the different types of blockchain networks and their advantages in the enterprise space and after opting for permissioned networks to form a consortium, my questions are: What are the ...
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Do QBFT of quorum mine empty blocks?

We are currently using RAFT as the consensus protocol as it has the highest TPS, fastest block creation, and no empty block creation. However, recently GoQuorum tutorials highlighted not to use RAFT ...