am bdf8034c: Merge "OBB: use PBKDF2 for key generation." into gingerbread

Merge commit 'bdf8034c657147226b2390eef113ff841e0d6065' into gingerbread-plus-aosp

* commit 'bdf8034c657147226b2390eef113ff841e0d6065':
  OBB: use PBKDF2 for key generation.