Hi, I am new to the Roster, and have just installed it without any problems.
But i am searching for an option to restrict the uploads of the profiles by a password.

Uploading of this file is restricted by presence of a character's name in the guild list
The only password is the Roster Admin password which allows access to updating the guild list (and some addons use it as well)

Roster does not have a user authentication system as of yet (wait for v1.