FIELD: communications.
SUBSTANCE: invention pertains to organisation of internetworking for a communication system. The communication system generates the main session key for accessing the system object, which does not provide encrypting the data stream. The home server as well as the user generates the same main session key. The main session key is used for generating encryption keys for the data stream. Alternatively, the main session key is generated using a hash-function and information, specific for the request. The home server determines the need for generating the main session key, based on information contained in the access request message. After generation of the main session key, the system object is dispatched for granting the object the capacity of encrypting communication.
EFFECT: provision for traditional authentication for accessing a cellular communication system and WLAN.
12 cl, 6 dwg
