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1. Cryptanalysis and enhancements of delegation-based authentication protocol for secure roaming service

Author:Wang, Yichen ; Pu, Qiong ; Wu, Shuhua

Source:International Journal of Electronic Security and Digital Forensics,2012,Vol.4

Abstract:Most recently, Youn and Lim proposed an improved delegationbased authentication protocol for secure roaming service with unlinkability. In this letter, we show that 1 it is vulnerable to a denial of service (DoS) attack 2 can not provide the unlinkability as claimed. Finally, we propose an enhanced protocol to remedy the security loopholes existing in it. Moreover, our improved protocol is still efficient. Copyright © 2012 Inderscience Enterprises Ltd. Copyright © 2012 Inderscience Enterprises Ltd.
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