Despite recent progresses of practical asynchronous Byzantine-fault tolerant (BFT)
consensus, the state-of-the-art designs still suffer from suboptimal performance. Particularly …

Existing committee-based Byzantine state machine replication (SMR) protocols, typically
deployed in production blockchains, face a clear trade-off:(1) they either achieve linear …

Distributed Key Generation (DKG) is a technique to bootstrap threshold cryptosystems
without a trusted third party and is a building block to decentralized protocols such as …

In this paper, we introduce the problem of Asynchronous Data Dissemination (ADD).
Intuitively, an ADD protocol disseminates a message to all honest nodes in an …

Threshold signatures are a crucial tool for many distributed protocols. As shown by Cachin,
Kursawe, and Shoup (PODC'00), schemes with unique signatures are of particular …

Multi-valued validated asynchronous Byzantine agreement (MVBA), proposed in the elegant
work of Cachin et al.(CRYPTO'01), is fundamental for critical fault-tolerant services such as …

Asynchronous BFT consensus can implement robust mission-critical decentralized services
in the unstable or even adversarial wide-area network without relying on any form of timing …

Byzantine consensus is a fundamental building block in distributed cryptographic problems.
Despite decades of research, most existing asynchronous consensus protocols require a …

Distributed Key Generation (DKG) is a technique to bootstrap threshold cryptosystems
without a trusted party. DKG is an essential building block to many decentralized protocols …

As the first Byzantine fault-tolerant (BFT) protocol with linear communication complexity,
HotStuff (PODC 2019) has received significant attention. HotStuff has three round-trips for …