Design and Application of inter-network security transmission system of self-control

This paper analyzes in detail the security threats in the transmission of information between networks of different security levels, studies the specific applications of network information security protection technology, and focuses on the security transmission of information in the network of different security levels. We proposes a secure interactive application model for scientific research office networks based on the combination of an autonomous and controllable secure secret- related medium and a “ferry” machine to realize information transmission between high and low levels of security, and comprehensively use key technologies such as anti-virus, keyword filtering, and data verification to meet the absolute security of file transmission under certain conditions. With this model, the construction of a scientific research office network with independent and controllable data secure transmission between networks is realized. When the system transmits information from a low-density network to a high-density network, it can realize the one-way secure transmission of data among various types of data such as files, databases, and data streams under the premise of ensuring physical isolation.