Cell phone password protection method based on Android system

Abstract

Provided is a cell phone password protection method based on an Android system. A cell phone disk comprises a guiding partition of a guiding loading program for loading an operation system, a system kernel partition containing an operation system kernel, a system partition and a user data partition. The method includes the steps that a password partition is built in the cell phone disk, and the password partition is an exposed partition independent from and different from the system partition and the user data partition; preset passwords are encrypted and written into a password partition through a method of writing a disk sector directly; when the cell phone operation system is started, the guiding loading program reads the cell phone passwords through a method of reading the disc sector directly, and the cell phone passwords are transmitted to the operation system kernel; and the operation system kernel matches passwords input by users with the preset cell phone passwords. The cell phone password protection method effectively achieves a purpose of preventing cracking of power-on passwords maliciously, cuts off a path for eliminating the power-on passwords maliciously, and improves information protection safety of a cell phone.

Description

technical field [0001] The invention relates to the field of user information protection of a mobile phone, in particular to a password protection method for a mobile phone based on an Android system. Background technique [0002] At present, mobile phones of the Android system generally have a power-on password setting to prevent personal mobile phones from being stolen. However, at present, the power-on password is stored in the user data partition, that is, the data partition, and is put together with other data information of the user. Many users will use Recovery and OTA (Over-the-Air Technology, that is, over-the-air technology) for flashing operations. If the user chooses to flash the data partition data, after the flashing is completed, the user data will be cleared, resulting in the original password setting If it is invalid, the security function brought by the power-on password will be invalidated, and the effective prevention purpose will not be achieved. Other...

AI Technical Summary

Problems solved by technology

Many users will use Recovery and OTA (Over-the-Air Technology, that is, over-the-air technology) for flashing operations. If the user chooses to flash the data partition data, after the flashing is completed, the user data will be cleared, resulting in the original password setting Invalid, the security function brought by the power-on password will be invalid, and the effective prevention purpose will not be achieved.

Other unscrupulous users can easily take advantage of this vulnerability to invalidate the password of the mobile phone through flashing operations, thereby stealing personal information in the mobile phone or other behaviors that damage the user's use

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