Abstract
Recently, Chuang et al. introduced a secure password authentication mechanism, called SPAM, for seamless handovers in Proxy Mobile IPv6 (PMIPv6). SPAM aimed at providing high security properties while optimizing handover latency and computation overhead, but as pointed out in this paper SPAM is vulnerable to replay and malicious insider attacks as well as the compromise of a single node. In this paper, a new Security Protocol for Fast PMIPv6, called SPFP, is proposed that provides a ticket-based secure handover for mobile nodes (MNs). In SPFP, a ticket containing authentication materials is used for fast handover authentication when an MN changes its attachment point. Moreover, the MN’s anonymity is supported for preserving location privacy. Detailed operations of initial authentication and handover authentication are presented with message flows. The formal security analysis of SPFP is provided with results of qualitative analysis and quantitative analysis.
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