Research And Implementation Of Video Security Access System Based On B Interface Protocol

With the improvement of the informationization level and the expansion of business scope of The State Grid Corporation,the demand for video applications of The State Grid Corporation is also increasing.More and more video terminals are remotely connected to the unified video monitoring platform of power grid.A large number of video terminals are distributed everywhere,extending the network boundary of power enterprises,which is likely to become a springboard for hackers to invade the company's intranet,resulting in security issues such as sensitive information leakage,data tampering and forgery,and malicious attacks.This paper studies the application status of the power grid video monitoring system,analyzes the security risks existing in the current power grid video monitoring system,designs and realizes the video security access system based on the B interface protocol in combination with the power security protection requirements and the existing security access technology.(1)through the establishment of three layers of security terminal layer,security transmission layer and security service layer,the system forms the defense in depth of the power information intranet,ensuring the security access of video terminals;(2)the security transformation of software and hardware,the addition of digital certificates and terminal security modules,ensuring the security of video terminals;(3)the video security communication protocol is designed based on the safe APN carries the network to ensure the security of the data in the transmission process;(4)the secure access platform is designed to realize the two-way identity authentication,key negotiation,data filtering,B interface protocol analysis and other functions with the video terminal,which ensures the security and credibility of the video terminal access,and also provides support for the video service.(5)finally,the video security access system designed in this paper is verified by building a simulation test environment.The video security access system based on B interface protocol meets the security requirements of remote access of video terminals,ensures the credibility of video terminals when accessing the intranet of the enterprise and the security of data transmission.It is of great significance to promote the informationization of power enterprises and the construction of smart grid.