Patent ID: 8699709
Filing Date: 2014-04-15
Classification: H04W

Abstract:
1. A method for obtaining authentication credentials for attaching a wireless device to a foreign wireless domain in a 3rd Generation Partnership Project (3GPP) communication system, the method comprising: receiving, by an infrastructure device of a 3GPP communication system, an attach request message from a wireless device, wherein the wireless device and the infrastructure device are within a home wireless domain of the wireless device; responsive to the attach request message, authenticating, by the infrastructure device, the wireless device and retrieving a set of authentication vectors, wherein the authentication vectors are for authenticating the wireless device to a foreign wireless domain of the 3GPP communication system using a standard 3GPP authentication mechanism; encrypting, by the infrastructure device, the set of authentication vectors using a first security key of the home wireless domain; encrypting, by the infrastructure device, the first security key using a second security key of the foreign wireless domain; and sending by the infrastructure device, the encrypted set of authentication vectors and the encrypted first security key to the wireless device.