Dynamic power control for rational cryptocurrency mining
Dynamic power control for rational cryptocurrency mining
复制标题
合理加密货币挖矿的动态功率控制
DOI：
10.1145/3410699.3413797
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Wuthier, Simeon
中科院分区：
文献类型：
--
作者：
Chang, Sang-Yoon;Wuthier, Simeon
在区块链和加密货币中，矿工参与基于工作证明的分布式共识协议，以发现并生成有效区块，处理交易，并赚取相应的奖励。由于加密货币旨在适应动态挖掘器网络的大小，挖掘器的参与会影响块难度，从而设置查找有效块的预期工作量。研究了采矿权控制与区块难度之间的依赖关系，并研究了一种理性矿工利用这种依赖关系动态控制采矿权的时间跨度，而不仅仅是即将到来的区块。更具体地说，我们介绍了I-O挖掘策略，在该策略中，矿工利用块难度调整规则，在全功率挖掘和难度调整之间切换。在I-O挖掘中，采矿者影响块难度，只有在难度较低的情况下才进行挖掘，博弈并破坏了挖掘协议的设计完整性，以获取利润。我们分析了I-O挖掘相对于静态挖掘策略的激励/利润收益，以及它在区块/事务可伸缩性方面对区块链挖掘网络其余部分的负面影响。我们的结果表明，随着挖掘竞争的加剧，I-O挖掘变得更加有效和有利可图，回报和成本差异变得越来越小，这是加密货币的趋势。
In blockchain and cryptocurrency, miners participate in a proof-of-work-based distributed consensus protocol to find and generate a valid block, process transactions, and earn the corresponding reward. Because cryptocurrency is designed to adapt to the dynamic miner network size, a miner's participation affects the block difficulty which sets the expected amount of work to find a valid block. We study the dependency between the mining power control and the block difficulty and study a rational miner utilizing such dependency to dynamically control its mining power over a longer horizon than just the impending block. More specifically, we introduceI-O Miningstrategy where a miner takes advantage of the block difficulty adjustment rule and toggles between mining with full power and power off between the difficulty adjustments. In I-O Mining, the miner influences the block difficulty and mines only when the difficulty is low, gaming and violating the design integrity of the mining protocol for its profit gain. We analyze the I-O Mining's incentive/profit gain over the static-mining strategies and its negative impact on the rest of the blockchain mining network in the block/transaction scalability. Our results show that I-O Mining becomes even more effective and profitable as there are greater competitions for mining and the reward and the cost difference becomes smaller, which are the trends in cryptocurrencies.
DOI：
10.1007/978-3-319-67816-0_25
发表时间：
2017-09
期刊：
--
影响因子：
--
作者：
D. Meshkov;A. Chepurnoy;M. Jansen
通讯作者：
D. Meshkov;A. Chepurnoy;M. Jansen
IBWH：具有最优挖矿奖励率的间歇性扣块攻击
DOI：
--
发表时间：
2019
期刊：
Information Security Conference
影响因子：
--
作者：
Junming Ke;Pawel Szalachowski;Jianying Zhou;Qiuliang Xu;Zheng Yang
通讯作者：
Zheng Yang