commit 00872652ccca67216b17a70c17024ff709952155
author Tianjie <xunchang@google.com> Mon Dec 07 17:12:41 2020 -0800
committer Tianjie <xunchang@google.com> Mon Dec 14 11:42:45 2020 -0800
tree 92f22c4b90becb6112e5a34482c0d9e3373475f5
parent e315bfa55b249dc2a6afe13ccfd0ea69fd0a58a9

Factor out a class to store the rebootEscrow key

To support server based RoR, we will communicate with server to
encrypt the time constrained reboot escrow key; and put the
encrypted key on /data. This replaces the call to the reboot
escrow HAL. Add an interface to support both implementations.

Bug: 172780686
Test: atest FrameworksServicesTests:RebootEscrowDataTest \
            FrameworksServicesTests:LockSettingsServiceTests \
            FrameworksServicesTests:RecoverySystemServiceTest \
            FrameworksServicesTests:RebootEscrowManagerTests
Change-Id: Icf10d5771b1efd8197b677158f39fd240c5c4107