信息通信技术与政策2024，Vol.50Issue(7)：59-68,10.DOI:10.12267/j.issn.2096-5931.2024.07.008
量子区块链共识协议、应用与展望
Quantum Byzantine agreement in blockchain:protocol,application and outlook
翁晨洵 1李明阳 1尹华磊 2陈增兵1
作者信息
- 1. 南京大学物理学院,南京 210093
- 2. 中国人民大学物理学系,北京 100872
- 折叠
摘要
Abstract
Blockchain technology ensures data security,integrity,and traceability through decentralization and distributed databases,with core components including distributed ledgers,encryption technology,and consensus mechanisms.The Byzantine agreement protocol,as a key component,is crucial for maintaining the security and consistency of decentralized networks.However,the rapid development of quantum computing threatens the security of classical Byzantine agreement protocols and their inability to surpass the 1/3 fault tolerance bound,making the study of quantum Byzantine agreement protocols necessary.This paper discusses the challenges faced by classical Byzantine agreement protocols in the quantum computing era and introduces the development and practical challenges of detectable quantum Byzantine agreement.It focuses on the recently proposed new quantum Byzantine consensus protocol based on quantum digital signatures,which breaks the 1/3 fault-tolerance bound,offers information-theoretic security,and is experimentally feasible.Finally,it discusses the constraints of the blockchain trilemma on Byzantine agreement and looks forward to the development of quantum Byzantine agreement protocols and their prospects for decentralized communication and computation in quantum networks.关键词
量子拜占庭容错共识/QDS/量子多方关联/1/3容错极限/量子区块链Key words
quantum Byzantine agreement/quantum digital signatures/quantum multiparty correlation/1/3 fault-tolerance bound/quantum blockchain分类
数理科学引用本文复制引用
翁晨洵,李明阳,尹华磊,陈增兵..量子区块链共识协议、应用与展望[J].信息通信技术与政策,2024,50(7):59-68,10.
