A new mutual authentication scheme based on nonce and smart cards
Computer Communications
Journal of Network and Computer Applications
Robust authentication and key agreement scheme preserving the privacy of secret key
Computer Communications
Robust smart-cards-based user authentication scheme with user anonymity
Security and Communication Networks
BICS'13 Proceedings of the 6th international conference on Advances in Brain Inspired Cognitive Systems
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To prevent the forged login attacks, Liu et al. recently proposed a new mutual authentication scheme using smart cards. However, we demonstrate that the attacker without any secret information can successfully not only impersonate any user to cheat the server but also impersonate the server to cheat any user. That is, Liu et al.'s scheme fails to defend the forged login attack as the previous version. Our cryptanalysis result is important for security engineers, who are responsible for the design and development of smart card-based user authentication systems.