Research Article
Analysis and Improvement of an Authentication Scheme Using Smart Cards
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@INPROCEEDINGS{10.1007/978-3-642-37949-9_63, author={Sonam Kaul and Amit Awasthi}, title={Analysis and Improvement of an Authentication Scheme Using Smart Cards}, proceedings={Quality, Reliability, Security and Robustness in Heterogeneous Networks. 9th International Conference, QShine 2013, Greader Noida, India, January 11-12, 2013, Revised Selected Papers}, proceedings_a={QSHINE}, year={2013}, month={7}, keywords={cryptanalysis authentication protocol smart cards dynamic identity password}, doi={10.1007/978-3-642-37949-9_63} }- Sonam Kaul
Amit Awasthi
Year: 2013
Analysis and Improvement of an Authentication Scheme Using Smart Cards
QSHINE
Springer
DOI: 10.1007/978-3-642-37949-9_63
Abstract
In 2010, Sood et al [16] proposed a secure dynamic identity based authentication scheme using smart cards. They claimed that their scheme is secure against various attacks. In this paper, we demonstrate that their scheme is completely insecure and vulnerable to outsider attack as well as insider attack. An outsider attacker can obtain the common session key between the user and the server, while an insider attacker can get not only the session key but also the secret key of the server. Therefore, the entire system collapses. To remedy these security flaws, an improved scheme is proposed to withstand these attacks.
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