A Privacy-Protecting Authentication Scheme for Roaming Services with Smart Cards

Kyungho SON  Dong-Guk HAN  Dongho WON  

IEICE TRANSACTIONS on Communications   Vol.E95-B    No.5    pp.1819-1821
Publication Date: 2012/05/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.1819
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Fundamental Theories for Communications
wireless communication,  authentication,  anonymity,  traceability,  smart card,  

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In this work we propose a novel smart card based privacy-protecting authentication scheme for roaming services. Our proposal achieves so-called Class 2 privacy protection, i.e., no information identifying a roaming user and also linking the user's behaviors is not revealed in a visited network. It can be used to overcome the inherent structural flaws of smart card based anonymous authentication schemes issued recently. As shown in our analysis, our scheme is computationally efficient for a mobile user.