A Proxy Signature-Based Re-Authentication Scheme for Secure Fast Handoff in Wireless Mesh Networks
In Wireless Mesh Networks (WMNs), re-authentication guarantees the secure association between a roaming Mesh Host (MH) and a target Mesh Access Point (MAP) in handoff process. However, due to the complex security mechanisms in re-authentication procedure, handoff delay is significantly extended, making it harder to guarantee the Quality of Service (QoS) of some mesh applications. In this paper, the authors propose a proxy signature-based re-authentication scheme for secure fast handoff in WMNs. To begin with, they designate the Mesh Portal (MPP) as the authenticator of the MH that initially accesses a certain mesh domain. After the successful initial association, the MH is authorized to obtain a temporal proxy delegation of the MPP for the preparation of handoff.