An Improvement of Efficient Dynamic ID-based User Authentication Scheme using Smart Cards without Verifier Tables
نویسندگان
چکیده
Remote user authentication scheme is one of the most convenient authentication schemes to deal with secret data over insecure channel. During the last couple of decades, many researchers have proposed a remote user authentication schemes which are ID-based, password-based, and smart card-based. Above all, smart card-based authentication schemes are becoming day by day more popular. One of the benefits of smart cardbased authentication scheme is that a server does not have to keep a verifier table. In 2015, Lee improved Lee’s scheme, and claimed that their scheme is more secure and practical remote user authentication scheme. However, we found that Lee’s scheme is still insecure and has no wrong password detection mechanism. In this paper, we propose an improved remote user authentication scheme which is aimed to withstand possible attacks. Then, we show that the proposed scheme is more secure and supports security properties. Keywords—Remote User Authentication, Smart card, Network Security
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