考虑权限阈值的物联网终端访问细粒度控制OA

In order to achieve dynamic management of IoT access permissions and improve the security of IoT data,a fine-grained control method for IoT terminal access considering permission thresholds is proposed.Firstly,the AES encryption al-gorithm with time stamps is used to encrypt sensitive data in the Internet of Things,improving the security of sensitive data.Secondly,loyalty is introduced to calculate the trust value of IoT visitors,and the identity of visitors is determined by compa-ring the trust value with the permission threshold,and data access permissions are assigned to visitors.Finally,the priority of non malicious visitors is determined through fuzzy comprehensive evaluation method to achieve fine-grained control of IoT terminal access.The experimental results show that this method has low data encryption cost and good access control effect.