tree 1e30986d3d0adde4843367ba25d69353b81a9fb6
parent 1ab7349e49dc8f53360750833d7e4e942f4408a8
author Paul Crowley <paulcrowley@google.com> 1454946941 +0000
committer Paul Crowley <paulcrowley@google.com> 1454961837 +0000

Password security for FBE disk encryption keys

Added a new call change_user_key which changes the way that disk
encryption keys are protected; a key can now be protected with a
combination of an auth token and a secret which is a hashed password.
Both of these are passed to unlock_user_key.

This change introduces a security bug, b/26948053, which must be fixed
before we ship.

Bug: 22950892
Change-Id: Iac1e45bb6f86f2af5c472c70a0fe3228b02115bf