e-PoS: Making Proof-of-Stake Decentralized and Fair

【Author】 Saad, Muhammad; Qin, Zhan; Ren, Kui; Nyang, DaeHun; Mohaisen, David

【Source】IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS

【影响因子】3.757

【Abstract】Blockchain applications that rely on the Proof-of-Work (PoW) have increasingly become energy inefficient with a staggering carbon footprint. In contrast, energy efficient alternative consensus protocols such as Proof-of-Stake (PoS) may cause centralization and unfairness in the blockchain system. To address these challenges, we propose a modular version of PoS-based blockchain systems called e-PoS that resists the centralization of network resources by extending mining opportunities to a wider set of stakeholders. Moreover, e-PoS leverages the in-built system operations to promote fair mining practices by penalizing malicious entities. We validate e-PoS 's achievable objectives through theoretical analysis and simulations. Our results show that e-PoS ensures fairness and decentralization, and can be applied to existing blockchain applications.

【Keywords】Bitcoin; Cryptography; Smart contracts; Stakeholders; Data mining; Consensus protocol; Complexity theory; Blockchains; consensus protocols; bitcoin

【发表时间】2021 44774

【收录时间】2022-01-02

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