面向区块链数据共享的访问控制研究综述
Review of Access Control Research for Blockchain Data Sharing
摘要
Abstract
With the advent of the digital age,data sharing plays a crucial role in promoting social and economic develop-ment as well as technological progress.How to effectively control access to the data sharing process while ensuring data security and privacy is an urgent problem to be solved.Firstly,the applications of access control technology in the existing blockchain projects are presented.Secondly,the research issues of access control for blockchain data sharing are formally defined.Then,the data sharing process is divided into the preparation stage,the data upload stage,and the authorization and access stage.In these three stages,the research status of blockchain data sharing access control technology is system-atically organized and the advantages and limitations of related technologies are summarized.Among them,the attribute encryption,searchable encryption,homomorphic encryption,and proxy re-encryption technologies in the data upload stage of blockchain access control are analyzed in detail.Finally,the deficiencies in the existing research on blockchain data sharing access control are summarized,including the insufficiency of the dynamicity of access control policies,the difficulty in converting legal provisions into policies,the poor security of smart contracts,the insufficiently lightweight encryption algorithms,and the coarse data classification granularity.Prospects are proposed from five aspects:dynamic policy generation based on large language models,automatic conversion of legal policies using natural language processing technology,establishment of security standards for smart contracts,development of lightweight encryption algorithms,and realization of automatic data classification with the aid of machine learning technology.关键词
区块链/智能合约/数据共享/访问控制Key words
blockchain/smart contract/data sharing/access control分类
信息技术与安全科学引用本文复制引用
冯鑫昊,李雷孝,刘东江,杜金泽,林浩..面向区块链数据共享的访问控制研究综述[J].计算机科学与探索,2025,19(8):1981-2000,20.基金项目
国家自然科学基金(62362055) （62362055）
国家重点研发计划(2023YFB2703900) （2023YFB2703900）
内蒙古自治区重点研发与成果转化计划项目(2022YFSJ0013,2023YFHH0052) （2022YFSJ0013,2023YFHH0052）
内蒙古自治区高等学校青年科技英才支持计划项目(NJYT22084) （NJYT22084）
内蒙古自然科学基金(2023MS06008) （2023MS06008）
内蒙古自治区直属高校科研项目(JY20220061,JY20230119,JY20230019) （JY20220061,JY20230119,JY20230019）
内蒙古自治区高等学校青年科技人才发展项目(NJYT24035) （NJYT24035）
鄂尔多斯市重点研发计划项目(YF20232328).This work was supported by the National Natural Science Foundation of China(62362055),the National Key Research and Develop-ment Program of China(2023YFB2703900),the Key Research and Development and Achievement Transformation Program Projects of Inner Mongolia Autonomous Region(2022YFSJ0013,2023YFHH0052),the Support Program for Young Scientific and Technological Talents in Higher Education Institutions in Inner Mongolia Autonomous Region(NJYT22084),the Natural Science Foundation of Inner Mongolia(2023MS06008),the Research Projects of Universities Directly Under Inner Mongolia Autonomous Region(JY20220061,JY20230119,JY20230019),the Young Scientific and Technological Talent Development Project of Inner Mongolia Autonomous Region Colleges and Universities(NJYT24035),and the Key Research and Development Program Project of Ordos(YF20232328). （YF20232328）
