A Survey on PoW-based Consensus

Annals of Emerging Technologies in Computing

article

Meneghetti, Alessio¹  Sala, Massimiliano¹  Taufer, Daniele¹ 

[1] University of Trento

关键词: Proof of Work (PoW);    Blockchain;    Distributed Digital Ledger;    Hashcash;    Bread Pudding Protocols;    Consensus algorithms;   

DOI  :  10.33166/AETiC.2020.01.002

学科分类：电子与电气工程

来源: International Association for Educators and Researchers (IAER)

【 摘 要 】

We provide a historical overview of proof-of-work techniques and the fields in which it plunges its roots. We are interested in PoW-techniques applied to blockchain technology and therefore we survey the state-of-the-art protocols employing these methods for consensus algorithms, emphasizing the differences between the efficient hashcash systems and the promising bread pudding protocols. Afterwards, the consensus mechanisms are discussed and some interesting known attacks to these algorithms are collected and classified according to their underlying ideas.

【 授权许可】

CC BY