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Cryptanalysis of Yeh-Shen-Hwang's One-Time Password Authentication Scheme
Dae Hyun YUM Pil Joong LEE
IEICE TRANSACTIONS on Communications
Publication Date: 2005/04/01
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Fundamental Theories for Communications
cryptanalysis, one-time password, S/KEY, authentication scheme,
Full Text: PDF(54.9KB)>>
Yeh, Shen, and Hwang recently proposed a secure one-time password authentication scheme using smart cards. They modified the famous S/KEY scheme to achieve security against preplay attacks and off-line dictionary attacks. However, this article shows that their scheme is vulnerable to preplay attacks.