The emergence of Industrial Internet of Things(IoT)has paid attention to industrial data security.The security of da-ta collection is directly related to the data security of the industrial Internet.In the data acquisition system,the data acquisition(southbound)and cloud communication(northbound)protocols and the operating environment of the data acquisition system are the most important security attack targets of data acquisition terminals.This paper analyzes the security of the mainstream northbound message queuing telemetry transport(MQTT)protocol and southbound object linking and embedding(OLE)for process control uni-fied architecture(OPC UA)protocol of the industrial IoT data mining security terminal and the trusted operating environment of the data acquisition system,designs and implements a data mining security terminal supporting northbound MQTT and southbound OPC UA protocol based on OpenSSL library in the secure operating environment of domestic processor E2000D.Experimental results show that the industrial IoT data acquisition security terminal has a high security performance in security authentication,access control,da-ta integrity and data confidentiality.
维普
万方数据