Iuon-Chang Lin and Chen-Hsiang Chen
Anonymity, Authentication, Security, Elliptic Curve Diffie-Hellman, Nitrate determination
In recent years, anonymity problem about wireless communication are issued and discussed widely. An adversary can steal messages transmitted from two entities. The message may contain user’s identity; therefore, the proper authentication with anonymity is required. In this Paper, we will point out that Mun et al.’s scheme cannot verify which mobile user is using the system; therefore, Mun et al.’s scheme cannot achieve user anonymity. Moreover, our improved scheme is more secure than Mun et al.’s scheme and related schemes, and our scheme is more efficient than before.
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