Reduction method and device for Android terminal full-disk enciphered data

A full-disk encryption and data technology, which is applied in computer security devices, digital data protection, electronic digital data processing, etc., can solve problems such as difficult cracking by brute force, long time-consuming, etc., and achieve fast loading, simple operation, and high decryption efficiency Effect
CN106599714AActive Publication Date: 2017-04-26XIAMEN MEIYA PICO INFORMATION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAMEN MEIYA PICO INFORMATION
Publication Date
2017-04-26

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Abstract

The invention provides a reduction method and device for Android terminal full-disk enciphered data. The method comprises the following steps of: constructing an Android virtual machine program used for starting an Android kernel; starting the Android virtual machine program; initializing the Android kernel by the Android virtual machine program; loading an Android root file system mirror image file; operating a program in the Android root file system mirror image file; on the basis of a configuration script in the Android root file system mirror image file, loading a partitioning mirror image file to be decrypted; starting corresponding system basic service; on the basis of the system basic service, reading the partitioning mirror image file to be decrypted; on the basis of a user encryption secret key corresponding to the partitioning mirror image file to be decrypted, generating a middle secret key by the Android kernel; and on the basis of the middle secret key, decrypting the read partitioning mirror image file to be decrypted.
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Description

technical field

[0001] The invention relates to the technical field of data restoration, in particular to a method and device for restoring full-disk encrypted data of an Android terminal. Background technique

[0002] With the development of electronic forensics technology, mobile phone forensics product forms are becoming more and more diversified. Among them, mobile phone chip forensics products have developed rapidly recently, mainly because they can often solve problems that cannot be solved by other mobile phone forensics products, for example, mobile phones with hardware damage due to being dropped, soaked, burned, etc., or mobile phones that cannot be turned on due to system problems etc. In these cases, chip forensics is one of the important feasible solutions. At the same time, with the rapid development of Android system security technology, the problem of terminal forensics such as Android mobile phones is that it is more and more difficult to bypass the securit...

Claims

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