基于CP-ABE算法的无线传感器网络访问自动控制  

Automatic Access Control of Wireless Sensor Networks Based on CP-ABE Algorithm

作　　者：冯梅 FENG Mei(School of Engineering,The Hong Kong Polytechnic University,Hong Kong 999077,China)

机构地区：[1]香港理工大学工程学院,中国香港999077

出　　处：《自动化与仪表》2025年第3期133-137,共5页Automation & Instrumentation

摘　　要：无线传感器网络安全管理过程中,依靠非对称密钥加密算法实现访问自动控制,需要向每个接收者单独完成消息加密和解密,导致访问控制时间开销较大。因此,提出基于CP-ABE算法的无线传感器网络访问自动控制方法。深入分析无线传感器网络节点和服务器部署情况,结合Merkle哈希树算法,搭建网络安全访问认证架构。根据用户与网络之间的历史交互记录,计算动态用户身份信任度,基于此推导出用户行为属性信任度和信任度范围函数,为不同用户分配对应的访问权限。最后,应用CP-ABE算法展开自动化加解密操作处理,通过系统初始化、属性授权机构初始化、私钥生成、网络信息加密、上传验证5个阶段实现网络访问控制。实验结果表明,在访问用户并发数量为120时,无线传感器网络访问控制平均时间开销仅为475 ms,满足实时性要求。In the security management process of wireless sensor networks,relying on asymmetric key encryption algo-rithms to achieve automatic access control requires separate message encryption and decryption for each receiver,re-sulting in significant time overhead for access control..Therefore,a wireless sensor network access automatic control method based on CP-ABE algorithm is proposed.In depth analysis of the deployment of wireless sensor network nodes and servers,combined with Merkle Hash tree algorithm,to build a network security access authentication archi-tecture.Based on the historical interaction records between users and the network,calculate the dynamic user identity trust level,derive the user behavior attribute trust level and trust range function based on this,and assign correspond-ing access permissions to different users,Finally,the CP-ABE algorithm is applied to automate encryption and de-cryption operations,achieving network access control through five stages:system initialization,attribute authorization a-gency initialization,private key generation,network information encryption,and upload verification.The experimental re-sults show that when the concurrent number of accessing users is 120,the average time cost of access control in wireless sensor networks is only 475 ms,which meets the real-time requirements.

关 键 词：CP-ABE算法 无线传感器网络 哈希树 访问权限 密钥 自动控制 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]