tree 2adbdbdcdac40ea568a0f1ac939bbc546227b93f
parent 0855263453f9921bfce0384991be5d6713c0e2e1
author Janis Danisevskis <jdanis@google.com> 1623770626 -0700
committer Janis Danisevskis <jdanis@google.com> 1625198999 -0700

Keystore 2.0 legacy Keystore: Cleanup when app/user removed.

Without this patch apps may leave the legacy keystore in an undefined
state when uninstalled and when the UID is reused the new app would find
stale entries in the legacy keystore.

There is no public API to use legacy keystore, but malicious apps could
use this to leave identifying information across installs.

Ignore-AOSP-First: No mergepath from AOSP.
Bug: 192575371
Test: legacykeystore_test
Change-Id: I06e8a4927af66092140ec84e7f5d83621cbb0b62