Encryption method, decryption method and device

An encryption method and hardware encryption technology, applied in the field of data encryption and decryption, can solve problems such as application development and maintenance difficulties, and achieve the effect of solving development and maintenance difficulties and transparent encryption and decryption

Inactive Publication Date: 2019-04-30
EASTCOMPEACE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide an encryption method, decryption method and device to solve the problem of difficulty in developing and maintaining application programs due to changes in sensitive data

Method used

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  • Encryption method, decryption method and device
  • Encryption method, decryption method and device

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Embodiment Construction

[0048] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, not all, embodiments of the present invention. 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.

[0049] see figure 1 and 2 As shown, the embodiment of the present invention provides an encryption method to solve the problem in the prior art that the development and maintenance of application programs are difficult due to changes in sensitive data.

[0050] Specifically, the encryption method includes the following steps:

[0051] ...

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Abstract

The invention discloses an encryption method, decryption method and device, and the method comprises the steps: building a new data table, defining fields in the data table, and enabling the fields tocomprise a sensitive data field and a non-sensitive data field; detecting whether the input plaintext data can change the data in the sensitive data field in real time; if yes, intercepting the plaintext data; encrypting the intercepted plaintext data to obtain ciphertext data; and storing the ciphertext data into a data table. The decryption method comprises the following steps: detecting whether an input data acquisition instruction relates to data in a sensitive data field or not; if yes, decrypting the ciphertext data in the data table corresponding to the sensitive data field to obtain decrypted data of the data table; creating a new mapping table, and mapping the decrypted data corresponding to the decrypted data table by the mapping table; and obtaining a data instruction pointingmapping table, and obtaining decrypted data. The embodiment of the invention is used for solving the problem that the development and maintenance of the application program are difficult due to the change of sensitive data.

Description

technical field [0001] The invention belongs to the technical field of data encryption and decryption methods, and in particular relates to an encryption method, a decryption method and a device. Background technique [0002] In the prior art, the sensitive data is encrypted by the application program and then stored in the database. Specifically, the application program uses an encryption machine to encrypt the sensitive data, and at the same time, the sensitive data is decrypted in the application program when it is used. [0003] Therefore, if the sensitive data changes, such as: the encryption method changes, the encryption algorithm changes, and the data is no longer sensitive, the application program needs to be changed accordingly, which is not conducive to the development and maintenance of the application program, and may easily cause problems such as data confusion. Contents of the invention [0004] The purpose of the present invention is to provide an encryptio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/62G06F21/60
CPCG06F21/602G06F21/6227G06F21/6245
Inventor 施伟周刘光健陈柏坚
Owner EASTCOMPEACE TECH
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