Improvement on Peyravian-Zunic's Password Authentication Schemes

Jing-Jang HWANG  Tzu-Chang YEH  

IEICE TRANSACTIONS on Communications   Vol.E85-B   No.4   pp.823-825
Publication Date: 2002/04/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Fundamental Theories
authentication,  password,  security,  

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Peyravian and Zunic (2000) presented two schemes for protecting password transmission and password change respectively. Like the traditional authentication scheme using passwords, the two new schemes are also vulnerable to attacks like guessing attacks, server spoofing, and server data eavesdropping. This paper will give demonstrations on what have caused to these drawbacks, and more of that, two improved schemes are also proposed which are free from worries of those possible attacks.