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Directive non-feedback optical fiber one-way transmitting physical isolating method and one-way transmitting system therefor

A one-way transmission, physical isolation technology, applied in transmission systems, digital transmission systems, electromagnetic wave transmission systems, etc.

Inactive Publication Date: 2011-04-20
中网信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since there is no feedback, it is impossible to confirm whether the other party has received it. In theory, one-way transmission is unreliable and there is no availability guarantee

Method used

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  • Directive non-feedback optical fiber one-way transmitting physical isolating method and one-way transmitting system therefor
  • Directive non-feedback optical fiber one-way transmitting physical isolating method and one-way transmitting system therefor
  • Directive non-feedback optical fiber one-way transmitting physical isolating method and one-way transmitting system therefor

Examples

Experimental program
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Embodiment Construction

[0015] figure 1 Flowchart depicting a physical separation method for one-way transmission. The one-way transmission system includes a sending host, a fiber optic transmission system with guidance and no feedback, and a receiving host.

[0016] (1) Sending host

[0017] The sending host can be any ordinary computer. Such as PC, industrial computer, workstation, server, etc. The sending host can also be a special purpose processor. Such as embedded computers, digital signal processing equipment, microcontrollers, etc. Any computer including input and output ports, where the output ports are two or more Ethernet media, is fine.

[0018] (2) Optical fiber one-way transmission system with guidance and no feedback

[0019] This system is composed of three photoelectric converters (A, B, C), a standard fiber optic cable and a split fiber cable. The transmitting port (Tx) of the photoelectric converter A is connected to the source end (ie, one end) of the 1-to-2 optical fiber,...

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Abstract

A method for physically isolating one-way transmission of optical fiber with direct but free of feedback utilizes transmission control mechanism of mirror image to realize transmission control with direct of sending host for raising reliability and usability of one-way transmission data free of feedback under the precondition of ensuring to be free of feedback and to have physical isolation.

Description

(1) Technical field [0001] The invention relates to a physical isolation method for one-way transmission of optical fiber with guidance and no feedback, and is an information security method with high-speed confidentiality, integrity and high availability. (2) Background technology [0002] Feedback-free one-way transmission technology is such a method, that is, between two independent networks or two independent systems, data can only be transmitted from one network or system to another network or system in one direction, but not in the reverse direction. Any signal, whether optical or electrical. It is emphasized here that no signal can be transmitted in reverse, not just that data cannot be transmitted in reverse. The main purpose is to specifically emphasize the elimination of covert channels. Since no signal can be transmitted in the reverse direction, there is neither clear channel nor latent channel, which eliminates the possibility of information leakage. Such a o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/12H04B10/08H04L1/16H04L12/24H04L9/00H04B10/075
Inventor 万平国
Owner 中网信息技术有限公司