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Ubiquitous computing has drawn significant attention. Under this environment, there may consist of different networks such as WLANs, WPANs, Ad Hocs, and 3Gs, but with the help of mobile IP scheme, users are able to get services and resources from all kinds of networks at anytime and anywhere. However, when a mobile node (MN) moves to a foreign domain or roams around different domains, the authentication procedures should be integrated and the privacy of users should be protected. In this paper, we propose a one-time identity access service authentication scheme and fast re-authentication functionality based on Mobile IPv6. Comparing with Byung-Gil et al. and Doo-Ho et al. schemes, our scheme has lower computation cost and protects userpsilas privacy from roaming.
Date of Conference: June 29 2008-July 5 2008