Abstract: A method of transmitting data and service information associated with said data, including an addressing step during which a set of service information D(Si) that is intended to be stored is referenced by means of an address AD. The address AD includes a session identifier Si, a session being defined as a string of successive activations of different communications means. Service information D(Si) is marked unequivocally by means of an identifier Si that is invariant throughout the session concerned. Thus no element external to that session can reach or degrade the service information, and its permanence is guaranteed until the end of the session.

Abstract: A method is provided for the transmissions of information between at least a first and a second communication means. The method includes in saving at least one set of information in an intermediate element. The method also includes defining a plurality of client groups, using an identifier in order to designate at least one group of clients that are authorized to access the information set, and at least one filtering step, which is intended to prevent a user that does not belong to the group from accessing the information. The method enables the integrity of the contained in the intermediate element to be substantially secured, by selecting clients that are authorized to access the information.

Abstract: A method is provided for the transmissions of information between at least a first and a second communication means. The method includes in saving at least one set of information in an intermediate element. The method also includes defining a plurality of client groups, using an identifier in order to designate at least one group of clients that are authorized to access the information set, and at least one filtering step, which is intended to prevent a user that does not belong to the group from accessing the information. The method enables the integrity of the contained in the intermediate element to be substantially secured, by selecting clients that are authorized to access the information.

Abstract: A method of transmitting data and service information associated with said data, including an addressing step during which a set of service information D(Si) that is intended to be stored is referenced by means of an address AD. The address AD includes a session identifier Si, a session being defined as a string of successive activations of different communications means. Service information D(Si) is marked unequivocally by means of an identifier Si that is invariant throughout the session concerned. Thus no element external to that session can reach or degrade the service information, and its permanence is guaranteed until the end of the session.