Service Access Authentication Method and System

A method of facilitating, by an operator access authentication system, authentication of a subscriber device requesting access to a service, wherein the operator access authentication system is adapted to provide one or more authentication functions for facilitating authentication of subscribers of the service based on respective subscriber authentication data items, and wherein the method comprises:

• receiving a subscriber authentication data item from a private access authentication system communicatively connected with the operator access authentication system, said subscriber authentication data item being indicative of one or more subscriber credentials;
• and
• responsive to the received subscriber authentication data item and responsive to a verification of a state in which the private access authentication system is operated, providing one or more authentication functions for facilitating authentication of a subscriber associated to said subscriber credentials.

An operator access authentication system for an access authentication system the operator access authentication system being adapted to provide one or more authentication functions for facilitating authentication of subscribers of a service based on respective subscriber authentication data items, wherein the operator access authentication system is configured to:

• receive a subscriber authentication data item from a private access authentication system communicatively connected with the operator access authentication system, said subscriber authentication data item being indicative of one or more subscriber credentials;
• and
• responsive to the received subscriber authentication data item and responsive to a verification of a state in which the private access authentication system is operated, provide one or more authentication functions for facilitating authentication of a subscriber associated with said subscriber credentials.

A method of facilitating, by a private access authentication system connected to an operator access authentication system, authentication of a subscriber device requesting access to a service, wherein the operator access authentication system is adapted to provide one or more authentication functions for facilitating authentication of subscribers of the service based on respective subscriber authentication data items, and wherein the method comprises:

• communicating a subscriber authentication data item to the operator access authentication system, said subscriber authentication data item being indicative of one or more subscriber credentials and facilitating the operator access authentication system to selectively grant or deny a subscriber device access to the communications network;
• and
• communicating at least one verification data item indicative of a state in which the private access authentication system is operated and facilitating determination whether said state is trustable by the operator access authentication system.