Secure and Low Latency Handoff Scheme for Proxy Mobile IPv6

摘要

Recently wireless 3rd generation mobile telecommunication service providers have been showing strong interest in network-based localized mobility management. This could be a prominent way to support IP mobility to mobile nodes, because it requires minimal functionality on the mobile node. However, there is a limited understanding of security provisioning, security infrastructure, low latency handoff, and deployment scenarios, etc. With the fundamental aim low latency handoff in the proxy Mobile IPv6, we introduce a new approach to minimize handoff latency which could eliminate time required for re-authentication by AAA server while the mobile node is roaming across the localized Proxy Mobile IPv6 domains. From a security perspective, this allows mobile access gateways to exchange mobile node's policy profile and ongoing session securely using a variant of the Diffie-Hellman key agreement. To learn its feasibility, security analysis and handoff latency compared to existing handoff schemes are presented. The result shows that latency of the proposed handoff scheme is relatively lower than latency of the handoff scheme across Proxy Mobile IPv6 domains. This provides the confidentiality and integrity of a mobile node's policy profile and ongoing sessions in the exchange phase additionally.