计算机与网络

风险性信息入侵本地网络不但会造成数据泄露问题，还会严重干扰网络运行速率。为避免上述情况的发生，保障本地网络信息的安全性，提出基于角色访问控制机制的本地网络信息安全防护策略。根据网络用户角色的不同，实施信息权限分配，进而确定用户与访问信息之间的单一性映射关系，完成基于角色访问控制机制的本地网络信息体系构建。在完善的本地网络信息体系中，定义信息防护模式，并联合安全性信息准入原则，提出分级化的信息防护方案，实现对本地网络信息的安全防护。实验结果表明，基于上述防护策略可以避免85%以上的风险性信息入侵事件，且存在泄露风险的数据样本在本地网络总数据中的占比不足13%,能够大幅提升本地网络信息的安全性，在提升网络运行速率方面也具有突出的作用。

The intrusion of risky information into the local network not only causes data leakage problems, but also seriously interferes with the network operation speed. In order to avoid these and ensure the security of local network information, a local network information security protection strategy based on role-based access control mechanism is proposed. Information permission is allocated according to the different roles of network users, and then the single mapping relationship between users and access information is determined to complete the construction of the local network information system based on role-based access control mechanism. In a well-developed local network information system, the information protection mode is defined, and in combination with the principle of security information access, a hierarchical information protection solution is proposed to achieve security protection of local network information. The experimental results show that more than 85% of risky information intrusion incidents can be avoided based on the above protection strategies, and the proportion of data samples with leakage risks in the total local network data is less than 13%, significantly enhancing the security of local network information and playing an outstanding role in improving the network operation speed.