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Comments on Modified User Friendly Remote Authentication Scheme with Smart Cards
Eun-Jun YOON Kee-Young YOO
Publication
IEICE TRANSACTIONS on Communications
Vol.E90-B
No.2
pp.331-333 Publication Date: 2007/02/01 Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.2.331 Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Fundamental Theories for Communications Keyword: authentication, password guessing attack, smart card, efficiency,
Full Text: PDF(60.2KB)>>
Summary:
Recently, Wu-Chieu proposed an improvement to their original scheme, in order to make the scheme withstand impersonation attacks. However, the improved scheme is susceptible to an off-line password guessing attack and is inefficiently designed. Accordingly, the current letter demonstrates the vulnerability of Wu-Chieu's modified scheme to an off-line password guessing attack and evaluates the efficiency of their schemes and related schemes.
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