An Enhanced Secure Remote User Authentication Scheme without Verification Table

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Provided by: International Journal of Computer Applications
Topic: Security
Format: PDF
With the significant advances in communication networks over the last few decades, smart cards have been widely used in many e-commerce applications and network security protocols due to their low cost, portability, efficiency and cryptographic properties. In this paper, the authors analyze the researchers smart card based authentication scheme and demonstrate that the scheme is vulnerable to masquerade user attack, offline password guessing attack, time concurrency weaknesses and fails to achieve mutual authentication. A secure dynamic identity based remote user authentication scheme without verification tables, is proposed in this paper and the scheme resolves the aforementioned problems of their scheme.
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