Patent ID: 8347077
Filing Date: 2013-01-01
Classification: H04L

Abstract:
1. A method for authenticating a registration request from a mobile node, comprising: facilitating at an authenticator a communication session for a mobile node; facilitating access authentication to provide the mobile node access to an Internet Protocol (IP) network; receiving, by the authenticator, a master session key generated from the access authentication of the mobile node, the master session key transmitted in a message comprising an encrypted copy of the master session key and an identifier identifying a procedure for decrypting the encrypted copy, the receiving the master session key from the access authentication further comprising receiving, at the authenticator, the master session key from an authentication server; deriving, by the authenticator, a mobility key from the master session key; receiving, by the authenticator, a registration request from the mobile node after deriving the mobility key; authenticating, by the authenticator, the registration request using the mobility key; and forwarding, by the authenticator, the authenticated registration request to a home agent of the mobile node.