'Retrieves the key identified by the specified id.
This implementation returns the key that is associated with the
specified UUID. A Forbidden exception is raised if the specified
context is None; a KeyError is raised if the UUID is invalid.'

def get(self, context, managed_object_id):

    if (context is None):
        raise exception.Forbidden()
    if (managed_object_id != self.key_id):
        raise KeyError(((str(managed_object_id) + '    !=    ') + str(self.key_id)))
    return self._get_key()
