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Network data one-way transmission control method based on NDIS filter driver

A filter-driven, one-way transmission technology, applied in transmission systems, electrical components, etc., can solve the problems of inconvenient wide-scale promotion and use, inconvenient installation and deployment, and high control cost of isolation gate technology, achieving convenient installation and deployment, cost Low, safety-guaranteed effect

Inactive Publication Date: 2018-11-09
中国人民解放军91977部队
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The complexity of isolation gatekeeper technology determines that the cost of one-way transmission and control of network data by hardware gatekeeper equipment is relatively high, and it is inconvenient to install and deploy, and it is not convenient for large-scale promotion and use.

Method used

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  • Network data one-way transmission control method based on NDIS filter driver
  • Network data one-way transmission control method based on NDIS filter driver
  • Network data one-way transmission control method based on NDIS filter driver

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Embodiment Construction

[0028] The following will combine Figure 1 to Figure 7 The NDIS filter driver-based network data unidirectional transmission control method of the present invention is further described in detail.

[0029] The network data unidirectional transmission control method based on NDIS filtering driver of a preferred embodiment of the present invention comprises the following steps:

[0030] 1. Establish a network connection between two computers with different security levels. The computer with a higher security level is used as the server, and the computer with a lower security level is used as the client;

[0031] In this embodiment, a computer with two network cards is connected with an ordinary computer. In the computer with two network cards, one network card is connected to the external network, and the other network card is connected to the internal network, and the computer is used as a one-way network control server, for convenience For deployment, a USB network card can ...

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Abstract

The invention provides a network data one-way transmission control method based on an NDIS filter driver. The method comprises steps that network connection between two computers of different levels is established, the higher-level computer is taken as a server, and the lower-level computer is taken as a client; network filter drivers are respectively mounted on the server and the client; a monitoring service and detection program is mounted on the server to prevent one-way transmission control from being invalid after the filter driver is destroyed; a one-way transmission reception program operates on the server; a one-way transmission sending program operates on the client; a TCP data packet is encrypted by the client filter driver and then sent to the server, the decrypted TCP data packet is received by the server filter driver, the sent data packet is verified to ensure that the sent TCP packet does not include the data content, and data one-way transmission control is realized. The method is advantaged in that network data one-way transmission control is realized through software without special hardware, device mounting is convenient, and transmission is safe and reliable.

Description

technical field [0001] The invention relates to a one-way network transmission control method, in particular to an NDIS filter-driven one-way transmission control method for network data. Background technique [0002] Network data one-way transmission control belongs to the field of network security technology. It is mainly used in units that have high requirements for network security. It realizes that data in a network with a higher security level cannot flow to a network with a lower security level, but data in a network with a lower security level can One-way transmission of network data flowing to a network with a higher security level. The current common one-way transmission control technology of network data is called gatekeeper or isolation gatekeeper, which transmits or exchanges data between two disconnected networks through hardware. The hardware of the isolation gate is usually composed of an external network processing unit, an internal network processing unit,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
CPCH04L63/0209H04L63/0227H04L63/0428H04L63/123H04L69/16
Inventor 崔振利
Owner 中国人民解放军91977部队
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