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androidapk-expansion-files

Security of Expansions files after downloading on device Android

I am searching on how to implement Expansion Files in android because of my apk size. Now problem is that Expension files stored on device storage so is that possible that after downloading expansion files on request anyone can copy these or transfer these files through usb and use these expansion files

Solution

  • There's a JOBB tool for encapsulation and encryption http://developer.android.com/tools/help/jobb.html