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Encryption and decryption method, device and terminal for embedded storage device files

A storage device and encryption method technology, applied in the field of data security, can solve the problems of user data leakage and low data security level, and achieve the effect of enhancing security and ensuring personal interests

Active Publication Date: 2020-03-17
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a method, device and terminal for encrypting and decrypting files in embedded storage devices, which is used to solve the problem of simple encryption and decryption of files in embedded storage devices, which makes the data security level lower , it is easy to cause the problem of user data leakage

Method used

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  • Encryption and decryption method, device and terminal for embedded storage device files
  • Encryption and decryption method, device and terminal for embedded storage device files
  • Encryption and decryption method, device and terminal for embedded storage device files

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Embodiment Construction

[0092] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0093] The present invention aims at the problem that the existing file encryption and decryption method in the embedded storage device is simple, which makes the data security level lower and easily causes user data leakage, such as figure 1 As shown, a method for encrypting embedded storage device files is provided, including:

[0094] Step 101, obtaining the original file to be encrypted in the embedded storage device;

[0095] Step 102, acquiring the first characteristic information input by the user;

[0096] Step 103, comparing the first feature information with pre-stored user identification feature information;

[0097] Step 104, if the comparison is passed, the second feature information is obtained;

[0098] Step 105, processing the fir...

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Abstract

An encryption / decryption method and device for a file of an embedded type storage device, and a terminal. The encryption method comprises: acquiring an original file to be encrypted in an embedded type storage device; acquiring first feature information input by a user; comparing the first feature information with pre-stored user identification feature information; if the comparison has passed, acquiring second feature information; processing the first feature information and the second feature information according to a first pre-set rule to generate a first key; and conducting encryption processing on the original file according to the first key to generate an encrypted file. According to the solution, encryption conducted on a file is realized by using user feature information and feature information about a terminal where an embedded type storage device is located, thereby enhancing the security of information about a user and guaranteeing the personal interest of the user at the same time.

Description

technical field [0001] The invention relates to the technical field of data security, in particular to a method, device and terminal for encrypting and decrypting embedded storage device files. Background technique [0002] With the development of science and technology, all kinds of portable devices are emerging, and the demand for the performance of embedded storage devices is getting higher and higher. MMC (Multimedia Card, Multimedia Card), EMMC (Embedded Multi Media Card, which is for mobile phones or Embedded memory standard specifications of products such as computers), SDCARD (Secure Digital Memory Card, secure digital card) and other embedded storage device technology is also constantly improving, which is characterized by increased capacity, high read and write speed, and easy portability. The reason for users' increasing demand for capacity is that a large amount of user data needs to be stored, such as movies, pictures, files and other important and unused data. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/60G06F21/62
CPCG06F21/60
Inventor 李新宇
Owner ZTE CORP