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相关论文: Selfish Mining and Dyck Words in Bitcoin and Ether…

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We give a straightforward proof for the formula giving the long-term apparent hashrate of the Selfish Mining strategy in Bitcoin using only elementary probabilities and combinatorics, and more precisely, Dyck words. There is no need to…

密码学与安全 · 计算机科学 2019-02-06 Cyril Grunspan , Ricardo Pérez-Marco

We study selfish mining in Ethereum. The problem is combinatorially more complex than in Bitcoin because of major differences in the reward system and a different difficulty adjustment formula. Equivalent strategies in Bitcoin do have…

密码学与安全 · 计算机科学 2019-05-01 Cyril Grunspan , Ricardo Pérez-Marco

As the second largest cryptocurrency by market capitalization and today's biggest decentralized platform that runs smart contracts, Ethereum has received much attention from both industry and academia. Nevertheless, there exist very few…

密码学与安全 · 计算机科学 2021-07-13 Jianyu Niu , Chen Feng

Bitcoin and Ethereum are the top two blockchain-based cryptocurrencies whether from cryptocurrency market cap or popularity. However, they are vulnerable to selfish mining and stubborn mining due to that both of them adopt Proof-of-Work…

密码学与安全 · 计算机科学 2021-12-07 Runkai Yang , Xiaolin Chang , Jelena Mišić , Vojislav B. Mišić

We review the so called selfish mining strategy in the Bitcoin network and compare its profitability to honest mining.We build a rigorous profitability model for repetition games. The time analysis of the attack has been ignored in the…

计算机科学与博弈论 · 计算机科学 2019-01-23 Cyril Grunspan , Ricardo Pérez-Marco

Selfish Mining is strategic rule-breaking to maximize rewards in proof-of-work protocols [3] and Markov Decision Processes (MDPs) are the preferred tool for finding optimal strategies in Bitcoin [4, 10] and similar linear chain protocols…

密码学与安全 · 计算机科学 2024-05-01 Patrik Keller

Many of today's crypto currencies use blockchains as decentralized ledgers and secure them with proof of work. In case of a fork of the chain, Bitcoin's rule for achieving consensus is selecting the longest chain and discarding the other…

密码学与安全 · 计算机科学 2018-08-13 Fabian Ritz , Alf Zugenmaier

In this paper, we provide a new theoretical framework of pyramid Markov processes to solve some open and fundamental problems of blockchain selfish mining under a rigorous mathematical setting. We first describe a more general model of…

密码学与安全 · 计算机科学 2021-09-14 Quan-Lin Li , Yan-Xia Chang , Xiaole Wu , Guoqing Zhang

Selfish mining is strategic rule-breaking to maximize rewards in proof-of-work protocols. Markov Decision Processes (MDPs) are the preferred tool for finding optimal strategies in Bitcoin and similar linear chain protocols. Protocols…

密码学与安全 · 计算机科学 2025-06-24 Patrik Keller

This paper studies a fundamental problem regarding the security of blockchain on how the existence of multiple misbehaving pools influences the profitability of selfish mining. Each selfish miner maintains a private chain and makes it…

密码学与安全 · 计算机科学 2018-11-21 Qianlan Bai , Xinyan Zhou , Xing Wang , Yuedong Xu , Xin Wang , Qingsheng Kong

We analyze Qubic's publicly claimed selfish mining attack against Monero in 2025. By combining measurements from Monero nodes, the Qubic pool API, and Qubic-network observations, we reconstruct Qubic-attributed blocks and effective hashrate…

密码学与安全 · 计算机科学 2026-02-03 Suhyeon Lee , Hyeongyeong Kim

In this paper, we provide a novel dynamic decision method of blockchain selfish mining by applying the sensitivity-based optimization theory. Our aim is to find the optimal dynamic blockchain-pegged policy of the dishonest mining pool. To…

密码学与安全 · 计算机科学 2021-11-16 Jing-Yu Ma , Quan-Lin Li

We study selfish mining attacks in longest-chain blockchains like Bitcoin, but where the proof of work is replaced with efficient proof systems -- like proofs of stake or proofs of space -- and consider the problem of computing an optimal…

Selfish mining is a well known vulnerability in blockchains exploited by miners to steal block rewards. In this paper, we explore a new form of selfish mining attack that guarantees high rewards with low cost. We show the feasibility of…

密码学与安全 · 计算机科学 2018-12-18 Muhammad Saad , Laurent Njilla , Charles Kamhoua , Aziz Mohaisen

Eyal and Sirer's selfish mining strategy has demonstrated that Bitcoin system is not secure even if 50% of total mining power is held by altruistic miners. Since then, researchers have been investigating either to improve the efficiency of…

多智能体系统 · 计算机科学 2018-02-08 Tin Leelavimolsilp , Long Tran-Thanh , Sebastian Stein

Selfish miners selectively withhold blocks to earn disproportionately high revenue. The vast majority of the selfish mining literature focuses exclusively on block rewards. Carlsten et al. [2016] is a notable exception, observing that…

计算机科学与博弈论 · 计算机科学 2025-08-11 Maryam Bahrani , Michael Neuder , S. Matthew Weinberg

Seminal work of Eyal and Sirer (2014) establishes that a strategic Bitcoin miner may strictly profit by deviating from the intended Bitcoin protocol, using a strategy now termed *selfish mining*. More specifically, any miner with $>1/3$ of…

计算机科学与博弈论 · 计算机科学 2024-02-06 Maryam Bahrani , S. Matthew Weinberg

This paper studies a fundamental problem regarding the security of blockchain PoW consensus on how the existence of multiple misbehaving miners influences the profitability of selfish mining. Each selfish miner (or attacker interchangeably)…

密码学与安全 · 计算机科学 2023-04-04 Qianlan Bai , Yuedong Xu , Nianyi Liu , Xin Wang

In the area of blockchain, numerous methods have been proposed for suppressing intentional forks by attackers more effectively than the random rule. However, all of them, except for the random rule, require major updates, rely on a trusted…

密码学与安全 · 计算机科学 2025-01-03 Akira Sakurai , Kazuyuki Shudo

Bitcoin's (BTC) Difficulty Adjustment Algorithm (DAA) has been a source of vulnerability for incentive attacks such as selfish mining, block withholding and coin hopping strategies. In this paper, first, we rigorously study the short-term…

密码学与安全 · 计算机科学 2026-03-24 Mustafa Doger , Sennur Ulukus
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