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androidencryptionandroid-source

android crypto implementation android 4.3

I am referring "Android crypto implementation" document. w.r.t Android 4.3 source.

In point 2 it says The framework starts up, and sees that vold.decrypt is set to "1"

But I am not able to locate the code that does things mentioned in point 2. Is anybody able to locate it? Is it somewhere related to class BackupRestoreConfirmation?

Solution

  • Just a simple git grep will get the all the reference to this property:

    cmds/bootanimation/BootAnimation.cpp:276:    property_get("vold.decrypt", decrypt, "");
services/java/com/android/server/DevicePolicyManagerService.java:1869:        String state = SystemProperties.get("vold.decrypt");
services/java/com/android/server/SystemServer.java:239:            String cryptState = SystemProperties.get("vold.decrypt");
services/java/com/android/server/usb/UsbDeviceManager.java:173:        boolean dataEncrypted = "1".equals(SystemProperties.get("vold.decrypt"));

    And I think the one you need is in DevicePolicyManagerService.java or SystemServer.java