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The code is here. It's pretty explicit. https://android.googlesource.com/platform/system/vold/+/android-7.0.0_r14/Ext4Crypt.cpp#75 https://android.googlesource.

The code is here. It's pretty explicit. https://android.googlesource.com/platform/system/vold/+/android-7.0.0_r14/Ext4Crypt.cpp#75 https://android.googlesource.com/platform/system/vold/+/andr... Here's an email from Paul Crowley to me. Paul is one of the devs on this code: https://twitter.com/ciphergoth/status/801220048622714880?lang=en https://twitter.com/ciphergoth/status/801220048622714880?lan... Not really sure what else I can offer you.

matthewdgreen 10y ago
Also, I want to clarify that I don't think the weaknesses of Android N's encryption are the fault of Paul or anyone else on the team. I think this is really a question of corporate priorities. If Google wanted to put a lot of energy behind Android's device encryption, my suspicion is that they would be much farther along than they are now.