International Association for Cryptologic Research

International Association
for Cryptologic Research

IACR News item: 15 July 2012

Rafael Martínez-Peláez, Francisco Rico-Novella
ePrint Report ePrint Report
In 2010, Sood-Sarje-Singh proposed a dynamic ID-based remote user authentication scheme and claimed that their scheme is more secure than Das et al.\'s scheme and Liao et al.\'s scheme. However, we show that Sood et al.\'s scheme is still vulnerable to malicious user attack, man-in-the-middle attack, stolen smart card attack, off-line ID guessing attack, impersonation attack, and server spoofing attack, making the scheme unfeasible for practical implementation.

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