5 papers
Raptr: Prefix Consensus for Robust High-Performance BFT
Andrei Tonkikh, Balaji Arun, Zhuolun Xiang +2
In this paper, we present Raptr--a Byzantine fault-tolerant state machine replication (BFT SMR) protocol that combines strong robustness with high throughput, while attaining near-…
Zaptos: Towards Optimal Blockchain Latency
Zhuolun Xiang, Zekun Li, Balaji Arun +2
End-to-end blockchain latency has become a critical topic of interest in both academia and industry. However, while modern blockchain systems process transactions through multiple…
The Latency Price of Threshold Cryptosystem in Blockchains
Zhuolun Xiang, Sourav Das, Zekun Li +2
Threshold cryptography is essential for many blockchain protocols. For example, many protocols rely on threshold common coin to implement asynchronous consensus, leader elections,…
Deferred Objects to Enhance Smart Contract Programming with Optimistic Parallel Execution
George Mitenkov, Igor Kabiljo, Zekun Li +6
One of the main bottlenecks of blockchains is smart contract execution. To increase throughput, modern blockchains try to execute transactions in parallel. Unfortunately, however,…
Shoal++: High Throughput DAG BFT Can Be Fast!
Balaji Arun, Zekun Li, Florian Suri-Payer +2
Today's practical partially synchronous Byzantine Fault Tolerant (BFT) consensus protocols trade off low latency and high throughput. On the one end, traditional BFT protocols such…