基于同态加密和零知识证明的区块链可扩展隐私保护方案

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关键词：区块链；同态加密；零知识证明；隐私保护；可扩展性

中图分类号：TP309.2 文献标志码：A 文章编号：1001-3695（2025）07-003-1939-09

doi：10.19734/j.issn.1001-3695.2025.01.0002

Abstract：To address the increasing privacy protectionandscalability issues arising withthe widespreaduseof blockchain technology，thispaperproposedanimprovedalgorithmbasedontheOkamoto-Uchiyamaencryptionsheme.Thisalgorithmnot onlyimplementeddataencryptionbutalsosupportedzero-knowledgeprofs，esuringcompleteprivacyprotectionofusertrasactiondata.Aditionall，thepaperdesignedapaymentschemebasedonananonymousbidirectionalof-chainchael，which supportedfastandhigh-frequencyof-chaintransactions，effctivelyallviating blockchainsalabilityconcers.Comparedto existingalgorithms，theproposedmethoddemonstratedsignificantdvantages insystemparametergeneration，keygeetion， encryptionandcioficyoeicalasisdxperimetalultslidatecityasiilitydi cy of the scheme.

Key words：blockchain；homomorphic encryption；zero-knowledge proof；privacy protection；scalability

0引言

区块链技术因其去中心化、无可信第三方、分布式账本和交易记录不可窜改的特性，近年来在物联网领域的交易应用中备受关注。（剩余21917字）