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arXiv · 1504.02547

Byzantine Agreement with Optimal Early Stopping, Optimal Resilience and Polynomial Complexity

Ittai Abraham·Danny Dolev
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Abstract

We provide the first protocol that solves Byzantine agreement with optimal early stopping ($\min\{f+2,t+1\}$ rounds) and optimal resilience ($n>3t$) using polynomial message size and computation. All previous approaches obtained sub-optimal results and used resolve rules that looked only at the immediate children in the EIG (\emph{Exponential Information Gathering}) tree. At the heart of our solution are new resolve rules that look at multiple layers of the EIG tree.

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Ittai Abraham, Danny Dolev. 2015-04-10. Byzantine Agreement with Optimal Early Stopping, Optimal Resilience and Polynomial Complexity. https://arxiv.org/abs/1504.02547

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