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Transactions: WSEAS TRANSACTIONS ON COMMUNICATIONS
Transactions ID Number: 52-503
Full Name: Cheng-Chi Lee
Position: Assistant Professor
Age: ON
Sex: Male
Address: 510 Jhongjheng Rd., Sinjhuang City, Taipei,
Country: TAIWAN
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E-mail address: cclee@cis.nctu.edu.tw
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Title of the Paper: Improvement of Li-Hwang¡¦s Biometrics-based Remote User Authentication Scheme Using Smart Cards
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Number of paper pages: 11
Abstract: Recently, Li and Hwang proposed an efficient biometrics-based remote user authentication scheme without storing the password tables. Their scheme uses random numbers to solve the problem of synchronized clocks. It also enables the user to freely choose or change their passwords. At the same time, they claimed that their scheme provides security, reliability and efficiency. However, we found that Li and Hwang¡¦s scheme is vulnerable to denial of service attacks. Therefore, in this paper we propose an improved scheme to solve this weakness.
Keywords: User authentication, password, biometrics, smart cards, security, hash function.
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