Patent ID: 8457597
Filing Date: 2013-06-04
Classification: H04W

Abstract:
1. A first secure entity configurable for use in a secure network, wherein the first secure entity is configurable to: authenticate a mobile unit using a global authentication response received from a femtocell, wherein the global authentication response is generated by the mobile unit using a first security key and a first random number, wherein the first security key is unknown to the femtocell; acquire at least one second security key formed based on the global challenge; transmit, to the mobile unit via the femtocell, a unique challenge comprising a second random number; receive, from the femtocell, a unique challenge response generated by the mobile unit using the second random number and the first security key; and provide said at least one second security key to the femtocell in response to authenticating the mobile unit based on the second random number.