Data encryption storage method, data encryption search method, data encryption application method and related equipment

Abstract

The invention provides a data encryption and storage method, and the method comprises the following steps: encrypting plaintext data to obtain first ciphertext data, and then encrypting the first ciphertext data and a ciphertext data processing algorithm to obtain second ciphertext data and store the second ciphertext data. The data encryption search method comprises the steps of encrypting searchinformation, decrypting second ciphertext data, carrying out operation processing on the search ciphertext data and first ciphertext data by utilizing a ciphertext data processing algorithm, then carrying out comparison judgment according to an operation result, obtaining the first ciphertext data matched with the search information according to a judgment result, and finally, decrypting and outputting plaintext data. A data application method comprises the following steps: decrypting second ciphertext data, processing first ciphertext data by utilizing a ciphertext data processing algorithmto obtain a first data result, and finally decrypting the first data result to obtain plaintext data required by a user. Compared with the prior art, the data encryption storage method, the encryptionsearch method, the encryption search method, the encryption search method, the encryption search application method and the related devices prevent data leakage and are high in safety coefficient.

Description

【Technical field】 [0001] The present invention relates to the field of data security, in particular to a data encryption storage method, encryption search, application method and related equipment. 【Background technique】 [0002] In today's society, data security management is becoming more and more important, especially the data information related to the core interests of enterprises, for example, data information related to the development strategy and technical secrets of enterprises. Estimated economic losses, therefore, the application of anti-data leakage methods in data security management work is particularly important. [0003] In the anti-data leakage method of the related art, the data is encrypted by using symmetric encryption or asymmetric encryption algorithm, and then stored in the database; The key and the decryption function decrypt the ciphertext to obtain the plaintext, and finally calculate and process the plaintext. [0004] However, in related techno...

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Problems solved by technology

[0004] However, in related technologies, when data needs to be sent to other application services for processing, other application services need to decrypt the data first to obtain the plaintext, and then perform calculation and processing. If the data is decrypted, maliciously attacked or Deliberate disclosure, which will lead to loss of data control, and there is a risk of data leakage

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