Welcome to the resource topic for 2021/1308
Title:
No-Commit Proofs: Defeating Livelock in BFT
Authors: Neil Giridharan, Heidi Howard, Ittai Abraham, Natacha Crooks, Alin Tomescu
Abstract:This paper presents the design and evaluation of Wendy, the first Byzantine consensus protocol that achieves optimal latency (two phases), linear authenticator complexity, and optimistic responsiveness. Wendy’s core technical contribution is a novel aggregate signature scheme that allows leaders to prove, with constant pairing cost, that an operation did not commit. This No-commit proof addresses prior liveness concerns in protocols with linear authenticator complexity (including view change), allowing Wendy to commit operations in two-phases only.
ePrint: https://eprint.iacr.org/2021/1308
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