Patent ID: 8447979
Filing Date: 2013-05-21
Classification: H04L,H04W

Abstract:
1. A method for binding update between a mobile node and a correspondent node, comprising: receiving, by the correspondent node, an initiation message from the mobile node, the initiation message including a home agent address inserted by a home agent of the mobile node when the initiation message is transmitted from the mobile node to the correspondent node; determining, by the correspondent node, to use a protection method according to the initiation message from the mobile node, the protection method being selected from at least one of a two-party protection mode or a single-party protection mode; obtaining, by the correspondent node, a public key of the home agent of the mobile node according to the home agent address in the initiation message; encrypting, by the correspondent node, a parameter for generating a binding management key with the public key of the home agent; transmitting, by the correspondent node, the encrypted parameter to the home agent, wherein the home agent decrypts the encrypted parameter with its private key and sends the decrypted parameter to the mobile node; verifying, by the correspondent node, a binding update message based on authentication data, wherein the binding update message carrying the authentication data is sent from the mobile node, the authentication data being generated with the binding management key, the binding management key being generated with the decrypted parameter received from the home agent; creating, by the correspondent node, a binding buffer table entry for its binding with the mobile node after the verification is passed; and returning, by the correspondent node, a binding acknowledgement message to the mobile node.