%0 Journal Article %A Hyunseung Lee and Donghyun Choi and Yunho Lee and Dongho Won and Seungjoo Kim %D 2009 %J International Journal of Electronics and Communication Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 35, 2009 %T Cryptanalysis of Two-Factor Authenticated Key Exchange Protocol in Public Wireless LANs %U https://publications.waset.org/pdf/9852 %V 35 %X In Public Wireless LANs(PWLANs), user anonymity is an essential issue. Recently, Juang et al. proposed an anonymous authentication and key exchange protocol using smart cards in PWLANs. They claimed that their proposed scheme provided identity privacy, mutual authentication, and half-forward secrecy. In this paper, we point out that Juang et al.'s protocol is vulnerable to the stolen-verifier attack and does not satisfy user anonymity. %P 1932 - 1935