Data transmission method, device and system

A technology of data transmission and equipment, applied in the Internet field, can solve problems such as security risks

Active Publication Date: 2017-05-31
INVT ELEVATOR CONTROL TECH WUXI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing Internet of Things technology, symmetric encryption or plain text is generally used for data transmission between devices and servers. When using symmetric encryption for transmission, the symmetric encryption key is fixed. Therefore, once the symmetric encryption key If it is cracked, it will cause great security risks

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

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0017] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or The presence or addition of several other features, integers, steps, operations, elements, components and / or collections thereof. It should also be understood that the terminology used in the...

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PUM

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Abstract

The embodiment of the invention discloses a data transmission method, device and system. The system comprises the steps that the device sends a communication connection request to a server so that the server can send a public key to the device after receiving the communication connection request, and the server stores at least one set of public key and secret key; if the device receives the public key sent by the server, the device generates symmetric secret keys according to the current communication connection request, and the symmetric secret keys are different when the communication connection requests are different; the device utilizes the public key for encrypting local information, and the local information includes the symmetric secret keys; the device sends the encrypted local information to the server so that the server can obtain the symmetric secret keys according to the local information matched with the public keys and obtained after the secret keys are decrypted and encrypted; the device uses the symmetric secret keys and the server for performing encryption communication till a current encryption communication channel is interrupted. According to the data transmission method, the dynamically-changing symmetric secret keys are provided, and the information transmission security is improved.

Description

technical field [0001] The present invention relates to the technical field of the Internet, in particular to a data transmission method, equipment and system thereof. Background technique [0002] With the development of Internet communication technology, the Internet of Things technology is applied to more and more scenarios, such as the elevator Internet of Things. In the existing Internet of Things technology, symmetric encryption or plain text is generally used for data transmission between devices and servers. When using symmetric encryption for transmission, the symmetric encryption key is fixed. Therefore, once the symmetric encryption key If it is cracked, it will cause great security risks. Contents of the invention [0003] Embodiments of the present invention provide a method, device, and system for data transmission, which can provide a dynamically changing symmetric key, that is, the current symmetric key is different from the previously generated symmetric ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
CPCH04L63/045H04L63/06H04L63/083
Inventor 周庆张春明
Owner INVT ELEVATOR CONTROL TECH WUXI
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