Cryptanalysis and Security Enhancement of a Khan et al.'sScheme
Journal Title: IOSR Journals (IOSR Journal of Computer Engineering) - Year 2015, Vol 17, Issue 2
Abstract
Abstract: Remote user authentication, in which the resources are distributed among the recipients and theyare shared across the network in the form of network services provided by the remote systems. Before supplysuch services, the remote system should have the skill to authenticate the users. Otherwise, a discount couldimpersonate a legitimate user login to get access to the system. Currently, an efficient remoteauthentication in which using smart card have been widely adopted due to their low computational cost andconvenient portability for the authentication purpose. In smart card this field, there are many studies haverelied upon them, including a study by Khan et al. who claimed that he exceeded the weaknesses of Wang etal.'s scheme. But unfortunately Khan et al.'s scheme is still suffer from several the identified weaknesses whichis include preserve anonymity of a user, efficiency for wrong password login, forward secrecy and efficiencysession key agreement. So our propose which it includes the construction of authentication system dependingon 2FA , which is authentication scheme based on smart card, where it is surpassed the identified weaknessesof Khan et al.'s scheme which including preserve anonymity of a user, efficiency for wrong password login,forward secrecy and efficiency session key agreement.
Authors and Affiliations
Eman T. Jasim , Hameed A. Younis
Keywords
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