Patent ID: 6584310
Filing Date: 2003-06-24
Classification: H04L,H04W

Abstract:
An authentication interoperability function for facilitating authentication of a user from a home network when the user is in a visitor network, having a different authentication scheme from the home network, said authentication interoperability function receiving a challenge/response pair, including a triplet, from an authentication data base in the home network, creating a secondary key from the challenge/response pair, and sending the secondary key to an intermediary in the visitor network to authenticate the user from the home network;wherein the first network is a Global System for Mobiles (GSM) network, the second network is an IS-41 network, the intermediary is a visiting location register in the IS-41 network, and the authentication data base is a home location register in the GSM network; and wherein the authentication interoperability function is colocated with the home location register in the GSM network.