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Encryption and decryption methods and devices for embedded storage device file and terminal

A storage device and encryption method technology, which is 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: 2016-07-13
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

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  • Encryption and decryption methods and devices for embedded storage device file and terminal
  • Encryption and decryption methods and devices for embedded storage device file and terminal
  • Encryption and decryption methods and devices for embedded storage device file and terminal

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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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PUM

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Abstract

The invention provides encryption and decryption method and devices for an embedded storage device file and a terminal. The encryption method includes the steps that the original file to be encrypted in an embedded storage device is acquired; first feature information input by a user is acquired; the first feature information is compared with pre-stored user identification feature information; if comparison is passed, second feature information is acquired; the first feature information and the second feature information are processed according to a first preset rule, and a first secret key is generated; the original file is encrypted according to the first secret key, and the encrypted file is generated. According to the scheme, the file is encrypted through the user feature information and feature information of the terminal where the embedded storage equipment is located, the security of the user information is enhanced, and meanwhile personal benefits of the user are guaranteed.

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 continuously, and the demand for the performance of embedded storage devices is also getting higher and higher. Embedded memory standard specifications), SDCARD (SecureDigitalMemoryCard, safe digital card) and other embedded storage device technologies are also constantly improving, which are 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. [0003] Sometimes the user will store some very important information data in the embedded storage device. These d...

Claims

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Application Information

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IPC IPC(8): G06F21/60G06F21/62
CPCG06F21/60
Inventor 李新宇
Owner ZTE CORP