No-feedback one-way data transmission method based on single fiber structure

A data transmission method and data transmission technology, applied in the field of non-feedback one-way data transmission, can solve problems such as major safety hazards, and achieve the effect of ensuring reliable transmission

Active Publication Date: 2010-08-11
INST OF NAT SECURITY SCI & TECH +1
View PDF2 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Strictly speaking, this structure is still a big security risk when it is applied in a system that requires strict one-way transmission.
Due to the existence of the

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • No-feedback one-way data transmission method based on single fiber structure
  • No-feedback one-way data transmission method based on single fiber structure
  • No-feedback one-way data transmission method based on single fiber structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] Further describe the present invention below in conjunction with accompanying drawing and embodiment:

[0057] A kind of one-way transmission framework applying this technical solution is as attached figure 1 As shown, the entire transmission system consists of two unidirectional optical fiber data transmission cards, sending end equipment, receiving end equipment, etc. The sending end and receiving end can be various embedded devices, hosts, small servers, etc. that support the connection with the one-way optical fiber data transmission card, without any requirements for the CPU architecture.

[0058] The one-way optical fiber data transmission card is connected with the sending device or the receiving device through the computer bus, and the bus type can be PCI, PCI-E or PCI-X, etc. The transmission card can be an independent interface card or integrated on the motherboard of other devices, and is used to convert the digital signal transmitted to the card on the bus ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a no-feedback one-way data transmission method based on a single fiber structure; equipment comprises two one-way fiber data transmission cards which belong to a transmitting end and a receiving end respectively, and the two one-way fiber data transmission cards are connected by a single fiber through a fiber receiver, data communication between the transmitting end and the receiving end adopts a proprietary protocol to carry out data encapsulation, and the reliability of the one-way data transmission is ensued by correcting and deleting codes; as the connection between the transmitting end and the receiving end does not adopt an Ethernet protocol, a data packet is not treated by a TCP/IP protocol stack, so as to eliminate the possibility that a malicious user or a hacker uses the data packet sniffing tool to detect the proprietary protocol format and greatly enhance the transmission safety.

Description

field of invention [0001] The invention relates to a one-way data transmission method without feedback, in particular to a one-way data transmission method based on a single optical fiber structure to realize data between different devices or different modules inside the device, and belongs to the technical field of information security. Background technique [0002] In the field of information security, it is sometimes required that data can only be transmitted in a directional manner. For example, data can only be sent from a low-secret network to a high-secret network, and data is not allowed to be sent from a high-secret network to a low-secret network, so as to avoid leakage. Since in a one-way transmission system without feedback, the data sender cannot confirm whether the data is damaged during transmission, in order to ensure data integrity, the following two methods are often used in one-way data transmission: [0003] 1. Add some verification information to the tra...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04L29/06H04L9/00
Inventor 杜虹孙德刚史林港杜华王海洋
Owner INST OF NAT SECURITY SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap