Blockchain in the lens of BFT

In a 2014 piece to the NYTimes, Marc Andreesen wrote: “Bitcoin is the first practical solution to a longstanding problem in computer science called the Byzantine Generals Problem.” This was both an insightful comment and an overly optimistic one. It shed insight to the link between the decentralization technology of Bitcoin and the world of distributed … Continue reading Blockchain in the lens of BFT

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The BFT lens: Hot-Stuff and Casper

This post is the first in a series discussing: Today I am going to overview a new algorithmic foundation called ‘Hot-Stuff the Linear, Optimal-Resilience, One-Message BFT Devil’ (in short, Hot-Stuff), developed jointly with my colleagues Ittai Abraham and Guy Gueta, and harness it to explain the safety and liveness of Casper the Friendly Finality Gadget. The key take-aways are: We have excellent … Continue reading The BFT lens: Hot-Stuff and Casper