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File encryption and decryption method and system

A technology for encryption and decryption and files, which is applied in the field of data encryption and decryption, can solve the problems of obtaining private files and achieve the effect of solving the leakage of private files

Inactive Publication Date: 2013-10-02
SHENZHEN KENXINDA TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a fatal flaw in this: in case the user loses the mobile terminal, the private files in the mobile terminal will be obtained by others

Method used

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  • File encryption and decryption method and system
  • File encryption and decryption method and system

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Embodiment Construction

[0030] Such as figure 1 and figure 2 As shown, the present invention discloses a file encryption and decryption method, including an encryption step and a decryption step, and the encryption step includes the following steps:

[0031] In step S1, if opening the private folder for the first time, then the private folder password to open the private folder is set; in step S2, the files put into the private folder are encrypted according to the file password entered by the user The file is hidden by the user's choice.

[0032] Include the following steps in described deciphering step:

[0033] In step W1, when opening the private folder, you need to input the password of the private folder, if the input is correct, then execute step W2, otherwise the private folder cannot be opened; in step W2, open the private folder; in step W3, for The file selected by the user prompts to enter the file password. If the input is correct, the file will be opened, otherwise it cannot be open...

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Abstract

The invention provides a file encryption and decryption method and system. The encryption and decryption method comprises encryption steps and decryption steps, wherein the encryption steps are as follows: A, if a private file folder is opened for the first time, a private file folder password for opening the private file folder is set; B, with regard to a file put in the private file folder, the file is encrypted according to a file password input by a user and is hidden according to option of the user. The decryption steps are as follows: (1) when a private file folder is opened, the password of the private file folder is need to be input; if the input password is correct, the step (2) is executed, otherwise the private file folder cannot be opened; (2) the private file folder is opened; (3) the user is prompted to input the password of a file selected by the user; if the input password is correct, the file is opened, otherwise the file cannot be opened. The file encryption and decryption method and system have the benefits that the problem of disclosure of private files, probably existing in the current mobile terminals, is solved through multiple encryptions and file hiding.

Description

technical field [0001] The invention relates to the field of data encryption and decryption, in particular to a file encryption and decryption method and system. Background technique [0002] Nowadays, our mobile phones are more and more powerful, and all kinds of private information are stored in them. How to take effective measures to protect private files and private information in mobile phones has become a common topic for us. [0003] The current technology is to bind the encrypted file with the hardware device number, and an encrypted file can only be used on a specific device. There is a fatal flaw in this: in case the user loses the mobile terminal, the private files in the mobile terminal will be obtained by others. This is how the famous "Pornographic" incident happened. Contents of the invention [0004] In order to solve the problems in the prior art, the invention provides a file encryption and decryption method. [0005] The invention provides a method f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/02
Inventor 张海军
Owner SHENZHEN KENXINDA TECH
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