Data encryption method and device

A data encryption and encryption algorithm technology, applied in the field of data processing, can solve the problems of slow system response speed, long time consumption, large computing power for data encryption and decryption, etc., so as to improve data security and prevent brute force cracking.

Active Publication Date: 2017-09-08
江西创佳工程技术有限公司 +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] In the process of realizing the present invention, the inventor finds that the existing data encryption method is to encrypt the entire file or folder, and the larger the stored file or folder, the longer it takes to encrypt it; The longer it takes to decrypt the file, the more computing power is required for data encryption and decryption, which leads to an overall decrease in system response speed

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  • Data encryption method and device
  • Data encryption method and device

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Embodiment Construction

[0043] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0044] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this invention belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be understood to have meanings consistent with the meanings in the co...

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Abstract

The embodiment of the invention provides a data encryption method and device. The method comprises the following steps: selecting at least one target data segment from data to be encrypted; performing encryption operation for the selected target data segment according to a preset encryption algorithm to obtain a corresponding encrypted character string; adjusting the character arrangement order of the encrypted character string to obtain a target character string; replacing the target data segment in the data to be encrypted to the corresponding target character string to achieve data encryption. According to the data encryption method and device provided by the embodiment of the invention, the encryption operation of the data can be rapidly achieved, the brute force cracking of malicious programs to the encrypted data can be effectively prevented, and the security of the data can be improved.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a data encryption method and device. Background technique [0002] Data encryption refers to converting plaintext into ciphertext through encryption algorithm and encryption key, and decryption refers to restoring ciphertext to plaintext through decryption algorithm and decryption key. As people pay more and more attention to the protection of personal privacy, more and more people need to protect their private data information, especially with the prevalence of smart mobile terminals, the terminal is no longer just a simple communication tool, it may To save various important files, the usual way to encrypt these important files is to first select the files or folders to be encrypted, and then encrypt them through the encryption key set by the system to ensure the security of data information. [0003] In the process of realizing the present invention, the inventor find...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
Inventor 熊超陈少杰张文明
Owner 江西创佳工程技术有限公司
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