The Byzantine Generals Problem and Blockchain Consensus Models | A Deep Dive

In this video, I cover the Two Generals Problem, The Byzantine Generals Problem, Byzantine Fault Tolerance, Proof of Work, Proof of Stake, and Delegated Byzantine Fault Tolerance.

The Byzantine Generals problem will help others understand why a blockchain does what it does, and it illustrates why they are important.

Originally I was designing this video to just highlight DBFT, NEO’s consensus model, but naturally, I got a little carried away and produced this massive video. That being said, when analyzing one consensus model, it’s important to understand how they compare to other existing models.

If this is too long to sit through feel free to skip around!

0:52 Two Generals Problem
2:19 Byzantine Generals Problem
5:20 Byzantine Fault Tolerance
6:25 Proof of Work Consensus
10:14 Proof of Stake Consensus
12:30 Delegated Byzantine Fault Tolerance
17:00 “I thought NEO was proof of stake?”

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Resources:

Article on the Byzantine Generals Problem
https://medium.com/loom-network/understanding-blockchain-fundamentals-part-1-byzantine-fault-tolerance-245f46fe8419

Article on Proof of Work & Proof of Stake
https://medium.com/loom-network/understanding-blockchain-fundamentals-part-2-proof-of-work-proof-of-stake-b6ae907c7edb

Satoshi Nakamoto’s Email
https://www.mail-archive.com/cryptography@metzdowd.com/msg09997.html

Ethereum Docs on Proof of Stake
https://github.com/ethereum/wiki/wiki/Proof-of-Stake-FAQ#what-is-the-nothing-at-stake-problem-and-how-can-it-be-fixed

NEO Docs on DBFT
http://docs.neo.org/en-us/basic/consensus/consensus.html
http://docs.neo.org/en-us/basic/consensus/whitepaper.html

Видео The Byzantine Generals Problem and Blockchain Consensus Models | A Deep Dive канала Avery Carter