通信学报2024，Vol.45Issue(9)：244-257,14.DOI:10.11959/j.issn.1000-436x.2024150
面向云存储且支持重加密的多关键词属性基可搜索加密方案
Multi-keyword attribute-based searchable encryption scheme supporting re-encryption for cloud storage
摘要
Abstract
To address fine-grained access control,secure sharing,and encrypted key updates in a one-to-many model,a multi-keyword attribute-based searchable encryption scheme with proxy re-encryption for cloud storage was proposed.The access tree was enhanced with node information for fine-grained control over ciphertext read and write permissions.The keyword encryption process was optimized for trapdoor indistinguishability and restricted user search capabilities.Re-encryption updated ciphertext and keys,preventing malicious access by revoked users.A blockchain-based verifica-tion algorithm was designed to detect tampering of third-party data.The DBDH and DDH hard problems proved the scheme's keyword ciphertext security and trapdoor security.Experiments show the proposed scheme secures data and keys during key generation,trapdoor,and index generation,and correctness verification.It also demonstrates higher effi-ciency in time overhead,ensuring privacy and key safety while maintaining high efficiency.关键词
可搜索加密/属性基加密/读/写节点/代理重加密/访问控制Key words
searchable encryption/attribute-based encryption/read/write node/proxy re-encryption/access control分类
信息技术与安全科学引用本文复制引用
张克君,王文彬,徐少飞,于新颖,王钧,李鹏程,钱榕..面向云存储且支持重加密的多关键词属性基可搜索加密方案[J].通信学报,2024,45(9):244-257,14.基金项目
中央高校基本科研业务费资金资助项目(No.3282023033) （No.3282023033）
北京高校"高精尖"学科建设基金资助项目(No.20210086Z0401)The Fundamental Research Funds for the Central Universities(No.3282023033),Advanced Discipline Construc-tion Project of Beijing Universities(No.20210086Z0401) （No.20210086Z0401）
