Abstract: For authentication, authorization and accounting of a user, an AAA server in whose domain the user initialized a session for authentication and authorization of the user with the user's home domain is set as an anchor AAA server. During a handover of the user between different access nodes during the session, session update message to and from the anchor AAA server is used to update the session path. The downstream pointer from the home domain's AAA server to the anchor AAA server is kept unchanged.

Abstract: A DRM enabled UnConnected Device (UCD) has a Near Field Communications transceiver and specific DRM related data. The UCD transmits its DRM data to an external Connected Device (CD) using the NFC transceiver when brought into touch or very close to the CD. The CD responsively performs registration of the UCD with a DRM Rights Issuer using the DRM data of the UCD and provides registration result (DRM Context data) to the UCD wirelessly, either using the NFC or by another wireless connection. The UCD then joins to a common DRM domain with the CD by communicating with the RI via the CD and using the NFC or the other wireless connection. The whole process can be triggered by bringing the CD and UCD together and performed with little or no other user interaction.

Abstract: Methods, network elements, and a system for providing security of a session between a client of a domain of a network and a service node of said network are provided, which network consists of a plurality of domains, from which domain a user connected to said network via said client requests a service. The providing of security is based on analyzing a message, which is associated with said session and destined for said client, in terms of routing information. Such routing information may comprise an origin domain information of said message and a route information of said message, or an origin domain information of said message, which indicates a domain from which said message originates. The present invention is particularly advantageous for AAA sessions associated with authentication, authorization, and accounting functions and for usage of Diameter Base protocol.

Abstract: For authentication, authorization and accounting of a user, an AAA server in whose domain the user initialized a session for authentication and authorization of the user with the user's home domain is set as an anchor AAA server. During a handover of the user between different access nodes during the session, session update message to and from the anchor AAA server is used to update the session path. The downstream pointer from the home domain's AAA server to the anchor AAA server is kept unchanged.