Bitcoin's Latency–Security Analysis Made Simple

Bitcoin's Latency–Security Analysis Made Simple
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比特币的延迟——安全分析变得简单

DOI:
10.1145/3558535.3559791
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发表时间:
2022
期刊:
Proceedings of the 4th ACM Conference on Advances in Financial Technologies
影响因子:
--
通讯作者:
Ling Ren
Ling Ren
中科院分区:
--
文献类型:
--
作者:
Dongning Guo;Ling Ren

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简单的封闭形式的上界和下界的安全性的Nakamoto共识的确认深度,诚实和对抗块挖掘率的函数,以及块传播延迟的上限。边界是指数的确认深度和适用于无论对手的攻击策略。对于比特币的参数来说,上限和下限之间的差距很小。例如,假设平均区块间隔为10分钟,网络延迟为10秒,对抗性挖掘能力为10%,广泛使用的6区块确认规则产生的安全违规概率为0.11%至0.35%。
Simple closed-form upper and lower bounds are developed for the security of the Nakamoto consensus as a function of the confirmation depth, the honest and adversarial block mining rates, and an upper bound on the block propagation delay. The bounds are exponential in the confirmation depth and apply regardless of the adversary's attack strategy. The gap between the upper and lower bounds is small for Bitcoin's parameters. For example, assuming an average block interval of ten minutes, a network delay bound of ten seconds, and 10% adversarial mining power, the widely used 6-block confirmation rule yields a safety violation between 0.11% and 0.35% probability.
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DOI: 10.1145/3372297.3417290
发表时间: 2020
期刊: CCS '20: Proceedings of the 2020 ACM SIGSAC Conference on Computer and Communications Security
影响因子: --
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