It was all abandoned, but many similar features made it into CM. Things like separating the seeding passphrase/PIN/pattern for FDE from the lockscreen and lockscreen PIN randomization were once features in CyanogenMod.
The former, FDE key separation, feature is gone and you'll need to either use adb or a 3rd party application [0] to achieve it.
It shouldn't be too hard to pull kernel patches from CopperheadOS and apply it to a clean AOSP tree for different devices -- this is obviously after they have done all the heavy lifting.
The former, FDE key separation, feature is gone and you'll need to either use adb or a 3rd party application [0] to achieve it.
It shouldn't be too hard to pull kernel patches from CopperheadOS and apply it to a clean AOSP tree for different devices -- this is obviously after they have done all the heavy lifting.
0. https://github.com/xmikos/SnooperStopper