METHODS AND DEVICES FOR AUTHENTICATING A WIRELESS DEVICE TO A FOREIGN DOMAIN

摘要

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, which includes: receiving an attach request message from the wireless device (204); and responsive to the attach request message, authenticating the wireless device (208) and retrieving a set of authentication vectors (206), wherein the authentication vectors are for authenticating the wireless device to the foreign wireless domain. The method further includes encrypting the set of authentication vectors using a first security key of a home wireless domain of the wireless device (216). In addition, the method includes encrypting the first security key using a second security key of the foreign wireless domain (218) and sending the encrypted set of authentication vectors and the encrypted first security key to the wireless device (224).