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1. (WO2017036638) METHOD TO AUTHENTICATE A SUBSCRIBER IN A LOCAL NETWORK

Pub. No.:    WO/2017/036638    International Application No.:    PCT/EP2016/065840
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Wed Jul 06 01:59:59 CEST 2016
IPC: H04W 12/06
H04L 29/06
Applicants: GEMALTO SA
Inventors: PAULIAC, Mireille
PRADEN, Anne-Marie
Title: METHOD TO AUTHENTICATE A SUBSCRIBER IN A LOCAL NETWORK
Abstract:
The present invention relates to a method to authenticate a subscriber (IMSli) within a local network (LNj) comprising preliminary step of deriving a subscriber key (SMKi) in local keys (LKi), one local key (LKiLNj) for each local network (LNj) the subscriber (IMSli) is authorized to access, provisioning each local network (LNj) the subscriber (IMSli) is authorized to access with its own local key (LKiLNj). When an authentication is required in a given local network (LNj), an UlCC application derives a local key (LKiLNj) in the UlCC application of the subscriber (IMSli) using the network identifier (LNj), the key derivation function (KDF) and the subscriber key (SMKi) and use the derived local key (LKiLNj) in the algorithm to perform local authentication in the local network (LNj).