Password authentication with insecure communication
Communications of the ACM
Examining Smart-Card Security under the Threat of Power Analysis Attacks
IEEE Transactions on Computers
Authenticated key exchange secure against dictionary attacks
EUROCRYPT'00 Proceedings of the 19th international conference on Theory and application of cryptographic techniques
An improvement of Xu et al.'s authentication scheme using smart cards
Proceedings of the Third Annual ACM Bangalore Conference
Advanced smart card based password authentication protocol
Computer Standards & Interfaces
Computer Networks: The International Journal of Computer and Telecommunications Networking
Secure dynamic identity-based remote user authentication scheme
ICDCIT'10 Proceedings of the 6th international conference on Distributed Computing and Internet Technology
Cryptanalysis of the user authentication scheme with anonymity
FGIT'11 Proceedings of the Third international conference on Future Generation Information Technology
Review: Dynamic ID-based remote user password authentication schemes using smart cards: A review
Journal of Network and Computer Applications
A More Secure Authentication Scheme for Telecare Medicine Information Systems
Journal of Medical Systems
A Secure Authentication Scheme for Telecare Medicine Information Systems
Journal of Medical Systems
Security analysis of a multi-factor authenticated key exchange protocol
ACNS'12 Proceedings of the 10th international conference on Applied Cryptography and Network Security
An Improved Authentication Scheme for Telecare Medicine Information Systems
Journal of Medical Systems
Journal of Medical Systems
Journal of Network and Computer Applications
Comments on an advanced dynamic ID-Based authentication scheme for cloud computing
WISM'12 Proceedings of the 2012 international conference on Web Information Systems and Mining
Security analysis of a secure and practical dynamic identity-based remote user authentication scheme
WISM'12 Proceedings of the 2012 international conference on Web Information Systems and Mining
An Authentication Scheme for Secure Access to Healthcare Services
Journal of Medical Systems
Journal of Computer and System Sciences
Journal of Medical Systems
International Journal of Information and Communication Technology
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Password authentication has been adopted as one of the most commonly used solutions in network environment to protect resources from unauthorized access. Recently, Lee-Kim-Yoo [S.W. Lee, H.S. Kim, K.Y. Yoo, Improvement of Chien et al.'s remote user authentication scheme using smart cards, Computer Standards & Interfaces 27 (2) (2005) 181-183] and Lee-Chiu [N.Y. Lee, Y.C. Chiu, Improved remote authentication scheme with smart card, Computer Standards & Interfaces 27 (2) (2005) 177-180] respectively proposed a smart card based password authentication scheme. We show that these two schemes are both subject to forgery attacks provided that the information stored in the smart card is disclosed by the adversary. We also propose an improved scheme with formal security proof.