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USB unidirectional physical insulation network gap

A physical isolation and one-way technology, applied in the direction of long-distance connection/disconnection, data exchange details, electrical components, etc. The effect of error transmission

Inactive Publication Date: 2006-12-13
胡德勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The present invention can provide a transparent, wireless network between low-density and high-density networks by setting switches on the USB bus and USB memory write protection control lines, and using technologies such as the cooperation and processing of the corresponding switching control software in the USB memory and the host system. Error, one-way, orderly and high data transmission rate data path, which solves the problem that the current physical isolation gatekeeper is complex in design and difficult to verify

Method used

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  • USB unidirectional physical insulation network gap
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Embodiment Construction

[0013] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0014] like figure 1 As shown, the functional block diagram of the system for implementing the method of the present invention includes: a low-density host system with a USB interface and a high-density host system, a switching control switch, and a USB memory with a USB interface. The two host systems are connected to the switching control switch through the USB bus, and the switching control switch is also connected to the USB memory through the USB bus. The switching control switch switches the USB memory to be connected to the two host systems in turn through the control of the electronic switch, so that only one host system can perform data access to the memory at any time. According to the status of the connection between the USB memory and the host realized by switching the control switch, the corresponding write protection control is ...

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Abstract

The invention discloses a one-way physical separating net-brake based on USB interface in the information safe technological domain to switch network data, which comprises the following hardware parts: transferring control switch, writing protection switch and USB memory, wherein the host accesses USB memory as long as transferring control switch connects USB memory and host; when USB memory connects low-dense grade network host, the USB writing protection switch is set at writable condition, which realizes data writing and cancelling; when USB memory connects high-dense grade host, the USB writing protection switch is set at reading-only condition, which realizes data reading. The invention realizes reliable real-time transmission for one-way data, which switches software conveniently.

Description

technical field [0001] The invention relates to a data isolation switching one-way transmission method, in particular to a one-way physical isolation gatekeeper based on a USB bus, which unidirectionally transmits low-density network data to a high-density network, and is used in the technical field of information security. Background technique [0002] How to realize safe and reliable information transmission between low-density and high-density networks has always been an important issue in the field of information security. In the most demanding environment, data can only be transmitted one-way from the low-density network to the high-density network, and there is no possibility of reverse transmission. To achieve this purpose, the usual method is physical isolation, using artificial reading data from the low-density network to the mobile media, and then reading the data on the mobile media to the high-density network. On the one hand, this method is inefficient; on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/12
Inventor 胡德勇
Owner 胡德勇
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