Younsung  Choi, 
    Security Analysis of Symmetric Key based Remote user Authentication
Scheme with Forward Secrecy,
    Journal of Engineering and Applied Sciences,
    Volume 12,Issue 22,
    2017,
    Pages 5979-5984,
    ISSN 1816-949x,
    jeasci.2017.5979.5984,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2017.5979.5984)
    Abstract: Recently because of development of remote network technology, users are able to access the network
freely without constraints of time and space. As users are getting more frequent to access the remote server
in a computing environment, they are increasingly being exposed to various risk factors such as forward
secrecy and server impersonation attack. Therefore, researches for remote user authentication scheme have
been studying actively. This study overcomes the weaknesses of many authentication schemes proposed
recently. This study suggests an improved authentication scheme that protects user’s anonymity with
preserving variable more safe and also provides forward secrecy.
    Keywords: Cryptanalysis;security analysis;smart card based password authethentication;preserving variable;forward secrecy;Korea