基于物联网农田环境数据的安全访问控制

随着当前物联网边缘计算技术的发展，使得物联网数据安全访问的问题日益严峻，传统的基于用户权限的数据访问控制策略不能很好解决相关数据安全访问控制问题。为此，从用户身份认证和数据访问控制等方面研究物联网数据安全共享问题的解决方案。以物联网农田环境数据安全共享系统为应用背景，提出了一种基于用户属性和用户行为的数据安全访问控制模型，该模型以用户行为构建信任机制，并结合用户属性的设置与判定共同实现系统的数据安全访问控制。本文给出了模型的规则定义与构建、具体结构设计、数据处理控制流程以及用户信任度评价体系设计的详细过程及实例分析。通过分析结果表明，该模型设计具有较好的动态性和扩展性，能够实现物联网中用户对农田环境数据的安全访问，从而解决物联网数据安全共享问题。

Research on Security Access Control of Farmland Environment Data Based on Internet of Things

With the development of edge computing technology in the current internet of things (IoT), the problem of data security access in the IoT is becoming more and more serious. The traditional data access control policy based on user rights cannot solve the related data security access control problem well. To this end, from the aspects of user identity authentication and data access control, the solution to the problem of data security sharing in the IoT is researched. A data security access control model based on user attributes and user behaviors, which takes the farmland environment data security sharing system in the IoT as the application background, is proposed. This model builds a trust mechanism based on user behaviors, and realizes the data security access control of the system by combining the setting and judgment of user attributes. In this paper, the rules definition and construction of the model, the concrete structure design, the data processing and control flow, and the detailed process and case analysis of the user trust evaluation system design are given. The analysis results show that the model design has better dynamic and expansibility, and can realize the security access of users to the farmland environment data in the IoT, thus solve the problem of data sharing security in the IoT.