Abstract:Though recent breakthroughs have greatly improved the efficiency of asynchronous Byzantine agreement protocols, they mainly focused on the setting with private setups, e.g., assuming a trusted dealer to establish non-interactive threshold cryptosystems. Challenges remain to reduce the large communication complexities in the absence of private setups, for example: (i) for asynchronous binary agreement (ABA) with optimal resilience, prior private-setup free protocols (Cachin et al., CCS' 2002; Kokoris-Kogias et … Show more
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