| Abstract: | In next generation networks one of the most challenging issues is the definition of seamless and secure
handoffs in order to assure service continuity. In general, researchers agree on the use of EAP as an
authentication framework independent of the underlying technology. To date, efforts have focused on
optimizing the authentication process itself, leaving out other relevant but sometimes important aspects
like privacy. In this paper we present a solution that provides a lightweight authentication process while
preserving user anonymity at the same time. The goal is to define a multi-layered pseudonym architecture
that does not affect the fast re-authentication procedure and that allows a user to be untraceable. Taking
as reference our previous work in fast re-authentication, we describe the extensions required to support
identity privacy. Moreover, results collected from an implemented prototype, reveal that the proposed
privacy-enhanced fast re-authentication scheme is attainable without significant cost in terms of performance
in 4G foreseeable environments. |
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