This is a follow-up post to the post on Synchrony, Asynchrony and Partial synchrony. The partial synchrony model of DLS88 comes in two flavors: GST and Unknown Latency. In this post we discuss: Why, in practice, the GST flavor seems to be a better model of the real world. Why,...| decentralizedthoughts.github.io
Reliable Broadcast is an important building block of many Asynchronous protocols. There is a broadcaster that has some input value, $v$, and a non-faulty party that terminates needs to output a value. Reliable Broadcast is defined via two properties: Validity: If the broadcaster is non-faulty then eventually all non-faulty parties...| decentralizedthoughts.github.io
In this post, we will present (a variant of) PBFT, which is the first practical solution to Byzantine fault tolerant state machine replication under partial synchrony. The protocol follows the key ideas presented in the previous post on partial synchrony. Setting There are $n$ parties, at most $t<n/3$ of them...| decentralizedthoughts.github.io
