Peter Cai ea1764c9fa ext4crypt: support synthetic keys v3 on May update ...

Re-implemented SP800Derive in C++, which is added as the new key
derivation function in Android 9.0 May update. From file
services/core/java/com/android/server/locksettings/SP800Derive.java in
frameworks/base.

This is required to get TWRP working on any Android device that has a
screen lock set up after the May update.

Change-Id: I5c1a51b110033f2b0b75d5e36fd8098c05e95179

2019-05-24 20:41:12 +08:00

62 KiB

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