Welcome to the resource topic for 2021/603
Title:
Making Synchronous BFT Protocols Secure in the Presence of Mobile Sluggish Faults
Authors: Justin Kim, Vandan Mehta, Kartik Nayak, Nibesh Shrestha
Abstract:BFT protocols in the synchronous setting rely on a strong assumption: every message sent by a party will arrive at its destination within a known bounded time. To allow some degree of asynchrony while still tolerating a minority corruption, recently, in Crypto’19, a weaker synchrony assumption called mobile sluggish faults was introduced. In this work, we investigate the support for mobile sluggish faults in existing synchronous protocols such as Dfinity, Streamlet, Sync HotStuff, OptSync and the optimal latency BFT protocol. We identify key principles that can be used to ``compile’’ these synchronous protocols to tolerate mobile sluggish faults.
ePrint: https://eprint.iacr.org/2021/603
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