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arXiv · 2409.19564

Hamster: A Fast Synchronous Byzantine Fault Tolerance Protocol

Ximing Fu·Mo Li·Qingming Zeng·Tianyang Li·Shenghao Yang·Yonghui Guan·Chuanyi Liu
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Abstract

This paper introduces Hamster, a novel synchronous Byzantine Fault Tolerance protocol that achieves better performance and has weaker dependency on synchrony. Specifically, Hamster employs coding techniques to significantly decrease communication complexity and addresses coding related security issues. Consequently, Hamster achieves a throughput gain that increases linearly with the number of nodes, compared to Sync HotStuff. By adjusting the block size, Hamster outperforms Sync HotStuff in terms of both throughput and latency. Moreover, With minor modifications, Hamster can also function effectively in mobile sluggish environments, further reducing its dependency on strict synchrony. We implement Hamster and the experimental results demonstrate its performance advantages. Specifically, Hamster's throughput in a network of $9$ nodes is $2.5\times$ that of Sync HotStuff, and this gain increases to $10$ as the network scales to $65$ nodes.

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Ximing Fu, Mo Li, Qingming Zeng, Tianyang Li, Shenghao Yang, Yonghui Guan, Chuanyi Liu. 2024-09-29. Hamster: A Fast Synchronous Byzantine Fault Tolerance Protocol. https://arxiv.org/abs/2409.19564

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