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Comments on YEH-SHEN-HWANG's One-Time Password Authentication Scheme
Il-Sun YOU Kyungsan CHO
IEICE TRANSACTIONS on Communications
Publication Date: 2005/02/01
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Fundamental Theories for Communications
authentication, S/KEY, one-time password, smart card,
Full Text: PDF(56.6KB)>>
Recently, Yeh, Shen and Hwang proposed an one-time password authentication scheme, which enhances the S/KEY scheme to resist server spoofing attacks, preplay attacks and off-line dictionary attacks. In this letter, the weaknesses and inconveniences of their scheme are demonstrated.