On Selfholding Attack Impact on Imperfect PoW Blockchain Networks

Runkai Yang,Xiaolin Chang,Jelena Mišić,Vojislav B. Mišić,Hongyue Kang

IEEE Transactions on Network Science and Engineering（2021）

引用 7|浏览5

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摘要

Proof-of-Work (PoW) blockchain systems like Bitcoin and Ethereum are vulnerable to selfholding attack. The prior modeling-based works about this attack only considered Bitcoin and assumed that there were at most two honest pools in a perfect network (no natural fork in such networks). However, a blockchain network is imperfect due to block propagation delay, which can lead to forking. Moreover, th...

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关键词

Blockchains,Bitcoin,Security,Analytical models,System performance,Statistical analysis,Consensus algorithm,Markov processes

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