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Data transmission method, device and system

A data transmission method and technology of a data transmission device, which are applied in the field of data transmission, can solve the problems of high cost and cannot be widely used, and achieve the effect of increasing the cost of hardware

Active Publication Date: 2013-02-13
SOUTHWEST JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved in this application is to provide a data transmission method, device and system to solve the technical problem that in the existing data transmission scheme, when realizing the secure transmission of data at the transport layer, the cost is high and cannot be widely used

Method used

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  • Data transmission method, device and system
  • Data transmission method, device and system
  • Data transmission method, device and system

Examples

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Embodiment Construction

[0068] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0069] refer to figure 1 , which shows a flow chart of a data transmission method provided in Embodiment 1 of the present application, the method is applied to a first terminal, and the method may include the following steps:

[0070] Step 101: Obtain a second encryption key of a second terminal.

[0071] It should be noted that the step 101 can be specifically implemented in the following manner:

[0072] triggering a handshake protocol between said first terminal and said second...

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Abstract

The invention discloses a data transmission method and a device which are applied to a first terminal. The method includes obtaining a second encryption key of a second terminal; obfuscating data to be sent up to obtain obfuscated data according to a preset obfuscation rule; encrypting the obfuscated data as a sequence by using the second encryption key to obtain encrypted data; and sending the encrypted data as serial data to the second terminal through a physical connecting link. The invention further discloses a data transmission method and a device which are applied to the second terminal. The method includes obtaining the second encryption key of the second terminal; obtaining encrypted data sent by the first terminal through the physical connecting link; decrypting the encrypted data by using the second encryption key to obtain decrypted data; and reducing the decrypted data according to a preset anti-obfuscation rule to obtain restoring data.

Description

technical field [0001] The present application relates to the field of data transmission, in particular to a data transmission method, device and system. Background technique [0002] With the wide application of the network, the secure transmission of data in the network becomes more and more important. At present, technologies such as firewalls or gatekeepers are generally used to achieve secure data transmission between the internal network and the external network. However, it is difficult to guarantee the security of the firewall itself, and it cannot prevent the leakage of internal network information and the infiltration of external viruses and hacker programs. Security cannot be guaranteed. [0003] At present, the security isolation gatekeeper can be used to realize the safe transmission of data. The security isolation gatekeeper is composed of software and hardware, and its hardware equipment consists of three parts: an external processing unit connected to the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L9/08
Inventor 王黎杨凯高晓蓉赵全轲王泽勇张渝彭朝勇彭建平梁斌胥世波戴立新莫金雨
Owner SOUTHWEST JIAOTONG UNIV
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