SHA512 password and Cherokee MySQL Auhentication integration

I've recently asked cherokee devs to support MySQL authentication with SHA512 hashes, cause of Drupal 7.
It is now implemented on SVN trunk, but it seems there is something not working as expected. Maybe some D7 core developer can read this and give us a hand. I think maybe the problem is that D7 is storing passwords SHA512 hashes in base64 encoding, and Cherokee is not doing the same for SHA512 hashes? Some D7 <-> Cherokee devs communication would give us a new webserver for using Drupal with authentication.