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Method and device for data file processing

A data file and data table technology, applied in the field of data processing, can solve problems such as wasting CPU resources and achieve the effect of preventing data leakage

Active Publication Date: 2022-05-17
ALIBABA CLOUD COMPUTING LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] A current relational database encryption scheme is as follows: the encrypted object is a logical object (table), and there is no need to store an encrypted identifier for all pages of this logical object to indicate whether the page is encrypted, and because the encrypted page data Non-multiples of 16, resulting in the need for two encryptions when using AES (Advanced Encryption Standard, Advanced Encryption Standard Algorithm), and some data is encrypted repeatedly, which wastes CPU resources

Method used

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  • Method and device for data file processing
  • Method and device for data file processing
  • Method and device for data file processing

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Embodiment Construction

[0098] In order to make the above objects, features and advantages of the present application more obvious and comprehensible, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0099] refer to figure 1 , which shows a flow chart of the steps of an embodiment of a data file encryption method of the present application, which may specifically include the following steps:

[0100] Step 101, determine the data file to be encrypted, the data file includes a plurality of data table pages;

[0101] In a specific implementation, a data file refers to a file used to store data in a database, and can also be called a logical object, which is a data table containing one or more data table pages. In the embodiment of this application, the data table can be The page is the unit, and the corresponding operation is performed on the data file. It should be noted that this application is espe...

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Abstract

The embodiment of the present application provides a data file encryption method and device, including: determining the data file to be encrypted, the data file includes a plurality of data table pages; adding an encryption identifier to the specified data table page of the data file ; Encrypt the data table pages in the data file except the specified data table pages. Applying the embodiment of the present application, even if the data format of the data file is public, other data table pages of the data file except the specified data table page will be encrypted, and there will be no risk of data leakage.

Description

technical field [0001] The present application relates to the technical field of data processing, in particular to a data file encryption method, a data file processing method, a data file encryption device, a data file processing device and a terminal device. Background technique [0002] In a relational database, sql (Structured Query Language, Structured Query Language) is used to access data from a table (data table), and the real data is stored on the disk in a fixed format. For example, for the InnoDB engine, the data file uses the IBD format to save the data with the default 16k as a page (page) size. [0003] A page format includes three parts: page header (page header), page tailer (page tail), and page data (page data). The Page header saves some metadata of the page, the page tailer saves the page checksum (page checksum), which is used to verify whether the page is corrupted (destroyed), and the page data saves the real data. [0004] Among them, in the relatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/62
CPCG06F21/6218G06F2221/2107
Inventor 赵建伟
Owner ALIBABA CLOUD COMPUTING LTD