A system and method for isolating public security intranet and private video network

Abstract

The invention discloses a public-security inner network and special video network isolation system and method. A limited unidirectional serial channel and a high-speed unidirectional network channel are creatively selected for connection; according to the method, a user-defined encryption protocol and a packet format are used for carrying out unidirectional video access instruction transmission; and an attacker cannot obtain decryption methods, so that even in the most extreme case that an internal network video server is manipulated by the attacker and data are sent out through a serial port, the data can be intercepted by a high-speed unidirectional optical-fiber isolating receiver and cannot be transmitted to special video networks, and then, an inner network is effectively protected.

Description

technical field [0001] The invention relates to network physical isolation technology in the field of network security and data transmission technology in the field of data communication, in particular to an isolation system and isolation method for a public security intranet and a dedicated video network. Background technique [0002] The public security video private network is an all-weather monitoring network that integrates existing video surveillance resources through transformation and integration, and realizes interconnection, sharing, and wide coverage. An important means of ability. The public security organs at all levels need to check the real-time video and video files in the public security video network at any time, and when necessary, they need to call the real-time images of the scene for unified dispatch and command. With the deepening of public security information construction, it brings high efficiency and convenience to the daily work of the public sec...

AI Technical Summary

Problems solved by technology

At present, the isolation technology between the public security intranet and the private video network mainly uses the network gate device for isolation. However, due to the high bandwidth of video data, especially when accessing a large number of video channels, a high real-time bandwidth is required, so the network gate device requires a lot of time. Only high performance can process a large amount of video data in real time, resulting in high cost of gatekeeper equipment, making it difficult to promote and apply on a large scale

At the same time, even if the network gateway is used, since the core software and hardware are all dependent on imports, there are still many loopholes in the technical means, and it cannot guarantee that it will not be broken by hackers.

Images