Intranet and extranet interaction method and system of power terminal and data transmission method

Abstract

The invention provides an internal and external network interaction method and system of a power terminal and a data transmission method, the interaction method is applied to an interaction device ata request terminal side, and comprises the following steps: receiving a request message sent by a request terminal; judging whether the request message meets a preset security verification condition or not; when the request message meets a preset security verification condition, extracting request parameter information from the request message, and writing the request parameter information into asecurity isolation device database; reading response parameter information from the security isolation device database, and generating a response message according to the response parameter information; and sending the response message to the request terminal to establish a communication connection between the request terminal and the response terminal. Therefore, transmission of the malformed message and carried virus data between the intranet and the extranet possibly caused by transmission of the whole message is avoided, safe isolation between the intranet and the extranet is achieved, andsafe communication between the request terminal and the response terminal is guaranteed.

Description

technical field [0001] The invention relates to the technical field of electric power information security, in particular to a method, system, and data transmission method for an electric power terminal to interact with internal and external networks. Background technique [0002] With the construction of the State Grid Corporation of Electric Power Internet of Things, the demand for access to external network business terminals is increasing. At the same time, with the increasing popularity of IP phones in power communications, users can use IP phones for two-way audio and video multimedia real-time interaction. However, "State Grid Corporation of China Smart Grid Information Security Protection Overall Plan” requires: “Information internal and external network borders are protected by special information security network security isolation devices of State Grid Corporation.” Under this requirement, external network terminals access information security security isolation de...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a power terminal internal and external network interaction method and a data transmission method and system, so as to overcome the problem of network security hidden dangers in the prior art when interactive communication between internal and external network terminals

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