Keskeiset käsitteet
Enhancing scalability in asynchronous BFT consensus through FIN-NG and JUMBO.
Tiivistelmä
Recent advancements in asynchronous Byzantine fault-tolerant (BFT) consensus protocols have shown promising performance but face scalability challenges. This paper introduces FIN-NG, a signature-free asynchronous BFT consensus protocol that outperforms existing protocols like Dumbo-NG. By adapting the state-of-the-art FIN protocol into a framework of concurrent broadcast and agreement, FIN-NG significantly improves performance. Additionally, JUMBO is proposed as a scalable instantiation of Dumbo-NG with reduced authenticator complexity. Experimental results demonstrate enhanced scalability with hundreds of nodes, outperforming existing protocols.
Key points:
- Introduction to the scalability challenges in existing asynchronous BFT consensus protocols.
- Proposal of FIN-NG as a signature-free protocol that enhances performance by adapting the FIN protocol.
- Introduction of JUMBO as a scalable instantiation of Dumbo-NG with reduced authenticator complexity.
- Implementation details and experimental results showcasing improved scalability in large-scale networks.
Tilastot
Each QC contains n-f=134 ECDSA/EdDSA signatures, and each signature has 64 bytes (if compression is turned off for computation efficiency).
Verifying an ECDSA/EdDSA costs ∼40 µs at EC2 c6a.2xlarge instance.
Lainaukset
"As Figure 1 depicts, we evaluate these state-of-the-art designs in a LAN setting, revealing that they suffer from significant performance decline as the number of participating nodes increases."
"JUMBO can attain a throughput that is more than 4x that of FIN and Dumbo-NG when n ≥196."