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Equilibrium analysis of bitcoin block withholding attack: A generalized model

机译：比特币区块预扣攻击的均衡分析：广义模型

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摘要

Block withholding attack is an action where a miner who has found a legal block chooses not to submit it but rather directly abandons it. This attack makes the mining pool lose all bitcoin rewards contained within the block. In this paper, we construct a generalized model where two participants can choose to either cooperate with each other or employ a block withholding attack in the mining pool. To make the model more realistic, we consider both the cost of partial proof of work and the cost of cooperation. We also calculate the reward-per-time instead of profit-per-time to better measure the payoffs of each party. Further, we discuss the case where the payoff function and cost function are directly related to the computational power. The pure strategy and mixed strategy are analyzed respectively and the segmentations of the equilibrium are shown. We demonstrate that increasing the information asymmetry by utilizing information conceal mechanisms could lower the occurrence of the BWH attack.
机译：区块扣留攻击是一种行为，发现合法区块的矿工选择不提交，而是直接放弃。这种攻击使矿池失去了区块中包含的所有比特币奖励。在本文中，我们构建了一个通用模型，其中两个参与者可以选择彼此合作或在采矿池中采用阻止预扣攻击。为了使模型更实际，我们同时考虑了部分工作证明的成本和合作的成本。我们还会计算每次奖励而不是每次利润，以更好地衡量每一方的收益。此外，我们讨论了收益函数和成本函数与计算能力直接相关的情况。分别分析了纯策略和混合策略，并显示了均衡的分割。我们证明通过利用信息隐藏机制来增加信息不对称性可以降低BWH攻击的发生。

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  • 来源
    《Reliability Engineering & System Safety》 |2019年第5期|318-328|共11页
  • 作者

    Di Wu; Liu Xiang-dong; Yan Xiang-bin; Rui Peng; Gang Li;

  • 作者单位

    Xi An Jiao Tong Univ, Minist Educ Proc Control & Efficiency Engn, State Key Lab Mfg Syst Engn, Sch Management,Key Lab, Xian, Shaanxi, Peoples R China;

    Univ Sci & Technol Beijing, Donlinks Sch Econ & Management, Beijing, Peoples R China;

    Univ Sci & Technol Beijing, Donlinks Sch Econ & Management, Beijing, Peoples R China;

    Univ Sci & Technol Beijing, Donlinks Sch Econ & Management, Beijing, Peoples R China|Beijing Univ Technol, Sch Econ & Management, Beijing, Peoples R China;

    Xi An Jiao Tong Univ, Minist Educ Proc Control & Efficiency Engn, State Key Lab Mfg Syst Engn, Sch Management,Key Lab, Xian, Shaanxi, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Bitcoin; Blockchain; Block withholding attack; Equilibrium analysis; Payoff per time; Computational power;

    机译：比特币;区块链;区块扣缴攻击;均衡分析;每次还清;计算能力;

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