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Data encryption and decryption method, device and system

An encryption and decryption, data technology, applied in the computer field, can solve problems such as affecting the industry prospects and endangering the survival and development of enterprises

Pending Publication Date: 2020-12-01
TONGDUN HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Data leakage is no longer just a problem affecting individuals, it has seriously endangered the survival and development of enterprises, and even affected the prospects of the industry

Method used

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  • Data encryption and decryption method, device and system
  • Data encryption and decryption method, device and system
  • Data encryption and decryption method, device and system

Examples

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Embodiment Construction

[0041] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus their repeated descriptions will be omitted.

[0042] Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the invention. However, those skilled in the art will appreciate that the technical solutions of the present invention may be practiced without one or more of the ...

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Abstract

The embodiment of the invention provides a data encryption and decryption method, device and system, and the method comprises the steps of determining a to-be-encrypted field in output data if the output data of an application on a client is obtained; encrypting a to-be-encrypted field in the output data to obtain a ciphertext of the to-be-encrypted field, and generating encrypted data of the output data according to the ciphertext of the to-be-encrypted field; if the input data of the application on the client is obtained, determining a to-be-decrypted field in the input data; sending a decryption request to a server, wherein the decryption request comprises a to-be-decrypted field; receiving a plaintext of a to-be-decrypted field returned by the server for the decryption request, and generating decryption data of the to-be-decrypted field according to the plaintext, wherein the plaintext of the to-be-decrypted field is obtained by the server according to the to-be-decrypted field query key value pair in the decryption request. According to the invention, sensitive information of data can be prevented from being leaked, the data security is ensured, the data encryption and decryption efficiency is improved, and the influence of data encryption and decryption on service processing is reduced.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a data encryption and decryption method, device and system. Background technique [0002] With the popularity of Internet applications and people's dependence on the Internet, the problem of data leakage has become increasingly prominent. In recent years, there have been frequent news reports that Internet companies and even some companies in traditional industries have data security issues such as large-scale information leakage, which seriously affects the company's image and even leads to serious business problems. [0003] As the impact of information leakage continues to ferment, the issue of data security has been valued by more and more individuals, enterprises, and governments. Relevant regulations and policies have been promulgated continuously. Data leakage is no longer just a problem affecting individuals, it has seriously endangered the survival and develo...

Claims

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Application Information

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IPC IPC(8): G06F21/60G06F21/64
CPCG06F21/602G06F21/64
Inventor 曲远汶陈涛
Owner TONGDUN HLDG CO LTD
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