Communication between a smart card and a server

The invention deals with a communication between a smart card (CAR) and a server (SERV) by way of a network (RES). The smart card communicates with this server by way of a communication system such as a mobile phone. The mobile phone (MOB) stores at least one object defining a respective service. Each object is defined by a class including at least one attribute. The invention comprises the following steps: a preliminary step in which an object is created in the smartcard (CAR), said object including at least one subscriber attribute; a loading step in which said object is loaded in the mobile phone; a using step in which said server (SERV) uses said object for performing security checking and getting information.