Patent ID: 8261078

Claim:
A method for providing a user entity with credentials for access to services in a communications network node, the method comprising the steps of: authenticating a gateway with the communications network node, where a result of the authentication is creation of a subscription based first key and a second key obtained from gateway authentication using the first key, a value, and shared algorithms, where both the gateway and the communications network node store the first key and the second key; registering a user identity of the user entity being associated with the subscription in the communications network node and the gateway; creating, at the gateway and at the communications network node, a user key, linked to the user identity, by applying a function, shared between the communications network node and the gateway, to the second key, the user identity, and other input parameters such that the user key is the function of the second key, the user identity and the other input parameters; downloading from the gateway to the user entity a security package, including the user key; and the user entity sending a request for access to network services, the request including the user key and an indication of request format.