Data eliminating method and device

A data clearing and user data technology, applied in the information field, can solve problems such as inconvenient operation and achieve the effect of reducing risks

Inactive Publication Date: 2016-09-21
LETV HLDG BEIJING CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method and device for clearing data, which is used to solve the technical problem in the prior art that the user needs to copy the user data in advance and the operation is inconvenient due to the deletion of all user data during data clearing.

Method used

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  • Data eliminating method and device

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0024] figure 1 A schematic flow chart of a data clearing method provided in Embodiment 1 of the present invention, as shown in figure 1 As shown, the method provided in this embodiment can be executed by a mobile terminal, and the method includes:

[0025] Step 101, in the recovery mode, identify the encryption state of the software system in the user mode.

[0026] Specifically, the software system has a user mode and a recovery mode, and the two modes are briefly introduced below respectively.

[0027] Wherein, the user mode refers to a mode used for the user to use the mobile terminal under normal circumstances, and the user mode has two encrypted states, one is an encrypted state, and the other is an unencrypted state. In the encrypted state, user data needs to be decrypted first before being able to access user data; the other is in an unencrypted state, and user data can be accessed without decryption. Normally, if the user data involves sensitive information, the us...

Embodiment 2

[0039] figure 2 It is a schematic structural diagram of a data clearing device provided in Embodiment 2 of the present invention. The data clearing device provided in this embodiment can be set in a mobile terminal, such as figure 2 As shown, the device includes: an identification module 31 and a retention module 32 .

[0040] The identification module 31 is configured to identify the encryption state of the software system in the user mode in the recovery mode.

[0041] The retaining module 32 is configured to retain user data in the unencrypted state when executing the process of clearing data in the recovery mode.

[0042] The device provided by this embodiment uses the identification module 31 to identify the encrypted state of the software system in the user mode in the recovery mode. If it is in the unencrypted state, when the process of clearing data is executed in the recovery mode, the retention module 32 will save the user data. Reservation, so that the user does...

Embodiment 3

[0046] image 3 A schematic structural diagram of a data clearing device provided in Embodiment 3 of the present invention, as shown in image 3 shown in figure 2 Based on the provided data clearing device, the device further includes: a clearing module 33 .

[0047] The clearing module 33 is configured to clear the user data in the external storage device when the data clearing process is executed in the recovery mode if it is in the encrypted state.

[0048] Further, in order to clearly illustrate the data erasing device provided in this embodiment, this embodiment provides two possible implementation manners of the data erasing device.

[0049] As a possible implementation, Figure 4 A schematic structural diagram of another data clearing device provided in Embodiment 3 of the present invention, as shown in Figure 4 shown in image 3 Based on the identification module 31, it further includes: a reading unit 311 and a determining unit 312.

[0050] The reading unit 311...

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PUM

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Abstract

The embodiment of the invention provides a data eliminating method and device. The data eliminating method comprises the steps of, in a recovery mode, identifying an encryption state of a software system in a user mode; and if the software system is in an unencrypted state, reserving the user data while carrying out a data elimination process in the recovery mode. Therefore, a user is unnecessary to copy the user data which are required to be reserved in advance, and the technical problem of operational inconvenience due to that the user is required to copy the user data in advance as data elimination in the prior art is to eliminate all the user data is solved. Meanwhile, the user data are reserved only when the software system in the user mode is in the unencrypted state; that is to say, when the user data are routine data which are not required to be encrypted, the user data are reserved; and if the user data are sensitive data, the processing way of eliminating all the data, which is relatively high in security, is stilled adopted to avoid leakage, so that the leakage risk of the sensitive user data is reduced.

Description

technical field [0001] The invention relates to information technology, in particular to a data clearing method and device. Background technique [0002] In a software system of a mobile terminal, such as an Android system, a recovery (Recovery) mode refers to a mode in which data or systems inside the mobile terminal can be modified. In this mode, a new software system can be written, or an existing software system can be backed up or upgraded, and factory settings can also be restored. For the software system of the mobile terminal, functions of software system upgrade and data clearing can be realized in the recovery mode. [0003] In the process of realizing the present invention, the inventor finds that the prior art has the following defects: [0004] When clearing data, all user data is deleted, so the user needs to back up the user data that needs to be kept in advance. For example, it is not convenient to copy files such as address books and photos. Contents of ...

Claims

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Application Information

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IPC IPC(8): G06F21/62G06F11/14
CPCG06F21/6245G06F11/1438G06F11/1451G06F2221/2143
Inventor 许帅群
Owner LETV HLDG BEIJING CO LTD
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