基于区块链的软件定义物联网访问控制模型研究

Research on Blockchain-Based Access Control Model for Software-Defined Internet of Things

软件定义物联网通过应用软件定义网络技术,实现了网络平面与控制平面的有效分离,从而显著提升了物联网服务的灵活性与可管理性。然而,其开放性也带来了更多的安全挑战。因此,提出将区块链技术集成到软件定义物联网架构中,利用区块链的去中心化和不可篡改的核心特性来加强网络控制与数据访问的安全性。另外,还通过智能合约来自动执行安全策略,采用基于密文策略的属性加密方案保证数据在传输和存储过程中的安全。

The Software-Defined Internet of Things(SD-IoT)achieves effective separation of the network plane and control plane by applying Software-Defined Networking(SDN)technology,thereby significantly enhancing the flexibility and manageability of IoT services.However,its openness also brings additional security challenges.Therefore,it is proposed to integrate Blockchain technology into the SD-IoT architecture,leveraging the decentralized and immutable core characteristics of Blockchain to strengthen the security of network control and data access.Additionally,smart contracts can are used to automatically enforce security policies,and a ciphertext-policy attribute-based encryption scheme can be adopted to ensure the security of data during transmission and storage.