计算机应用研究2026，Vol.43Issue(4)：995-1004,10.DOI:10.19734/j.issn.1001-3695.2025.09.0307
基于区块链的动态权限管理与隐私保护方案
Blockchain-based scheme for dynamic permission management and privacy protection
摘要
Abstract
This paper proposed a blockchain-based scheme to address issues such as delayed permission revocation,policy leakage,and high proxy re-encryption overhead in supply chain collaboration environments.The scheme constructed a three-layer security architecture integrating symmetric encryption,attribute-based encryption,and a trusted execution environment(TEE).It incorporated multi-hop proxy re-encryption to enable dynamic policy updates and forward security for historical da-ta.It designed an IoT event-driven smart contract coordination mechanism to trigger policies automatically and synchronize on-chain and off-chain states.It integrated the Groth16 zero-knowledge proof system with the TEE to form a closed-loop verifica-tion system comprising off-chain privacy proofs,on-chain policy auditing,and hardware-controlled decryption.Experimental results demonstrate that the proposed scheme outperforms existing approaches in key metrics such as policy-update latency and decryption response time,effectively supporting fine-grained,verifiable,and lightweight data sharing in scenarios including smart warehousing and cross-border logistics.关键词
区块链/属性基加密/代理重加密/零知识证明/动态权限控制Key words
blockchain/attribute-based encryption/proxy re-encryption/zero-knowledge proof/dynamic access control分类
信息技术与安全科学引用本文复制引用
李先秋,彭长根,谭伟杰..基于区块链的动态权限管理与隐私保护方案[J].计算机应用研究,2026,43(4):995-1004,10.基金项目
贵州省科技计划资助项目([2023]434) （[2023]434）
