In the first part of this post, we describe a single-shot variation of Two Round HotStuff (see HotStuff v1 paper, March 2018 and this March 2018 post) using Locked-Broadcast that follows a similar path as our previous posts on Paxos and Linear PBFT. In the second part, we describe a...| decentralizedthoughts.github.io
We recently published our work HotStuff-2 on eprint, introducing a two-phase HotStuff variant which simultaneously achieves $O(n^2)$ worst-case communication, optimistically linear communication, a two-phase commit regime within a view, and optimistic responsiveness in partially-synchronous BFT. The main takeaway is that two phases are enough for BFT after all. In this...| decentralizedthoughts.github.io
