commit c704834cb65eee08282ba2a53be2d15cecbdd866
author Bo Zhu <bozhu@google.com> Thu Jan 03 14:04:58 2019 -0800
committer Bo Zhu <bozhu@google.com> Thu Jan 17 17:38:19 2019 -0800
tree 3388347d0b9537da4f7051311f62efa1146a32d6
parent 252e8d0447eb64a1429a1198ff71f3785db2d2aa

Add an optional metadata blob for recoverable application keys

This metadata, if present, will be authenticated (but unencrypted)
together with the application key material.

Bug: 112191661
Test: atest FrameworksCoreTests:android.security.keystore.recovery
      atest FrameworksServicesTests:com.android.server.locksettings.recoverablekeystore
      atest -m RecoveryControllerHostTest RecoverableKeyStoreEndtoEndHostTest RecoverySessionHostTest

Change-Id: I2846952758a2c1a7b1f0849e1adda1f05a3e305e