There is a branch for this at lp:~mvo/aptdaemon/allow-unauthenticated now. It will require integration into software-center to show a propper error message (instead of the generic error).
There is a branch for this at lp:~mvo/aptdaemon/allow-unauthenticated now. It will require integration into software-center to show a propper error message (instead of the generic error).