Secure Route Optimization for Network Mobility Using Secure Address Proxying

In this paper, we propose a secure route optimization mechanism for network mobility management. By means of the mechanism, the Mobile Router securely proxies the care-of address for the Mobile Network Node. The Mobile Router sends a Binding Update directly to the Correspondent Node on behalf of the Mobile Network Node. The Binding Update binds the Mobile Network Node’s original address to the new care-of address. The Correspondent Node can verify that the Binding Update is sent from a node authorized to use the address. The Mobile Network Node authorizes the Mobile Router to proxy the address by using a Multi-key Cryptographically Generated Address to share the address ownership. In addition, through the binding procedure, the Mobile Router and the Correspondent Node securely exchange a session key, which enables a reduction in the handoff delay during binding update procedure.