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Data encryption method and device and data decryption method and device

An encryption method and data technology, applied in encryption devices with shift registers/memory, secure communication devices, digital transmission systems, etc., can solve problems such as low data security, and achieve low data security and data security , the effect of the data is more

Pending Publication Date: 2021-11-09
GREE ELECTRIC APPLIANCES INC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the embodiments of the present application is to provide a data encryption method and device, and a data decryption method and device, so as to solve the problem of low data security in the process of data transmission of devices in the prior art

Method used

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  • Data encryption method and device and data decryption method and device
  • Data encryption method and device and data decryption method and device
  • Data encryption method and device and data decryption method and device

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Embodiment Construction

[0016] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0017] The embodiment of this application provides a data encryption method, such as figure 1 As shown, the steps of the method include:

[0018] Step 102, the first device encrypts the first data to be transmitted by the first target algorithm to obtain the second data, wherein the target algorithm includes an irreversible algorithm; the second data includes the first data and a digest generated based on the irreversible algorithm; the irreversible algorithm The abstract in is the abstract in the corresponding relationship represented by the preset rainbow table, and the corresponding relationship is the corresponding relationship between the abstract and the ciphertext string.

[0019] Step 104, the first device encodes the second data using the first encoding method, and transmits the encoded se...

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Abstract

The invention provides a data encryption method and device and a data decryption method and device. The data encryption method comprises the steps: enabling the first equipment to encrypt first data to be transmitted through a first target algorithm to obtain second data, wherein the target algorithm comprises an irreversible algorithm, the second data comprises the first data and an abstract generated based on the irreversible algorithm, an abstract in the irreversible algorithm is an abstract in a corresponding relation represented by a preset rainbow table, the corresponding relation is a corresponding relation between the abstract and a ciphertext string, and the first device encodes the second data through a first encoding mode, and transmits the encoded second data to a second device. By means of the data transmission method and device, the problem that in the prior art, data security is low in the data transmission process of equipment is solved.

Description

technical field [0001] The present application relates to the field of data protection, in particular to a data encryption method and device, and a data decryption method and device. Background technique [0002] With the continuous improvement of living standards, the rapid development of smart homes has attracted many home appliance industries to enter and develop related smart products. But as smart products step into people's sight, security risks have also attracted more attention. At present, many smart devices are associated with sensors and perform operations based on the data transmitted by the sensors. Therefore, certain security risks may be brought. For example, the transmission process of the sensor is obtained, and the data of the simulated smoke and temperature sensor is sent to the fire extinguishing safety device, which will cause the activation of the safety device, thereby completing the attack on the smart device. For this, there is no effective solutio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/06H04L29/06
CPCH04L9/0643H04L63/0428
Inventor 李润林宋德超王沅召甄志坚程时鹏
Owner GREE ELECTRIC APPLIANCES INC
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