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Data encryption and decryption method and system

A data encryption and data decryption technology, which is applied in the field of data security, can solve the problems of low security of encryption and decryption methods, and achieve the effects of complex filling methods, improved data security, and strong randomness

Active Publication Date: 2019-03-08
DONGGUAN HUABEL ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a data encryption and decryption method and system to solve the problem of relatively low security of the encryption and decryption methods provided by the prior art

Method used

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  • Data encryption and decryption method and system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] see figure 1 , the present embodiment provides a data encryption and decryption method, the data encryption step comprising:

[0038] Step 101. Calculate the total length L of the data to be encrypted, and determine the required C original pictures for filling the data to be encrypted according to the total length L.

[0039] Wherein, the determination method of the C original pictures may be:

[0040] The first one is to randomly generate or randomly specify the image size X*Y, calculate the number C of images to be provided according to the total length L and the image size X*Y, and then obtain C original images with the size X*Y. In this method, the C original pictures with the specification of X*Y can be randomly selected from the built-in picture library, or can be specified by the user or taken by the camera.

[0041] The second method is to acquire multiple original pictures in sequence. When acquiring an original picture, it is estimated whether other original...

Embodiment 2

[0063] Embodiment 2 provides a data encryption and decryption system, including a data encryption device and a data decryption device.

[0064] Data encryption devices include:

[0065] The original picture acquisition unit is used to calculate the total length L of the data to be encrypted, and determine the required C original pictures for filling the data to be encrypted according to the total length L;

[0066] The filling setting unit is used to set the picture filling order and RGBA filling option and order corresponding to each original picture, and record it at the specified position of each original picture;

[0067] The filling execution unit is configured to fill the C original pictures with the data to be encrypted according to the picture filling sequence corresponding to each original picture and the RGBA filling options and order according to the preset filling rules, and obtain corresponding C encrypted pictures.

[0068] Data decryption devices include:

[0...

Embodiment 3

[0073] This embodiment provides a computer-readable storage medium, including instructions. When the instructions are run on a computer, the computer can execute the data encryption and decryption method described in Embodiment 1.

[0074] The above-mentioned computer-readable medium may include: any entity or device capable of carrying the above-mentioned instructions, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access Memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal, and software distribution medium, etc.

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Abstract

The invention relates to the technical field of data security and discloses a data encryption and decryption method and system. The data encryption and decryption method comprises the following stepsof calculating a total length L of data to be encrypted, and determining C original pictures needed for filling the data to be encrypted according to the total length L; setting the picture filling order and RGBA filling options and order corresponding to each original picture, and recording at the designated position of each original picture; according to the picture filling sequence corresponding to each original picture and RGBA filling options and sequence, according to the preset filling rules, filling the data to be encrypted into C original pictures to obtain the corresponding C encrypted pictures. The embodiment of the invention fills data into pictures according to specific rules, picture filling order and RGBA filling options and order, the filling method is complex and random, and the data security can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of data security, in particular to a data encryption and decryption method and system. Background technique [0002] With the continuous development of network technology, data privacy protection has become a security function that network operators and Internet companies focus on. Therefore, data encryption and decryption are relatively important technical points at this stage. However, the current data encryption and decryption methods are too simple, relatively easy to crack, and have poor security. Contents of the invention [0003] The purpose of the present invention is to provide a data encryption and decryption method and system, which solves the problem of relatively low security of the encryption and decryption methods provided by the prior art. [0004] For reaching this purpose, the present invention adopts following technical scheme: [0005] A data encryption and decryption method, comprisi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/60
CPCG06F21/602
Inventor 刘晓润许信雄何元
Owner DONGGUAN HUABEL ELECTRONICS TECH