重庆大学学报2026，Vol.49Issue(6)：93-102,10.DOI:10.11835/j.issn.1000-582X.2026.06.009
基于区块链的体域网动态信任委托访问控制研究
Blockchain-based dynamic trust delegation access control for body area networks
摘要
Abstract
In body area network(BAN)environments,traditional access control models face challenges such as single points of failure,rigid permission structures,and limited support for dynamic authorization.To address these challenges,this study proposes a blockchain-based dynamic trust delegation access control model for BANs.To effectively reduce storage and computational overhead,a lightweight two-layer blockchain architecture is designed,in which global policy management is maintained on the main chain,while specific service operations are processed on the subchain.In addition,a multi-smart-contract access control framework is developed to enable the automated management and execution of delegated authorization.To support dynamic permission adjustment,a trust evaluation mechanism integrating identity credibility,behavioral history,and real-time physiological context is further introduced.Experimental results show that the proposed model significantly reduces permission verification delay and emergency access latency,improve the success rate of delegation operations,and effectively reduce storage overhead.Overall,the model provides secure,efficient,and flexible access control support for resource-constrained body area network environments.关键词
体域网/区块链/访问控制/委托授权/动态信任评估/智能合约Key words
body area network/blockchain/access control/delegated authorization/dynamic trust evaluation/smart contract分类
信息技术与安全科学引用本文复制引用
韩永征,胡春强..基于区块链的体域网动态信任委托访问控制研究[J].重庆大学学报,2026,49(6):93-102,10.基金项目
重庆市教委科学技术研究项目(KJQN202303301) （KJQN202303301）
重庆城市管理职业学院校级项目(2022NDXM08).Supported by Scientific and Technological Research Project of Chongqing Municipal Education Commission(KJQN202303301)and School-level Project of Chongqing City Managemcnt College(2022NDXM08). （2022NDXM08）
