A Comparison of Password Techniques for Multilevel Authentication Mechanisms
Haga, William James
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Various mechanisms for authenticating users of computer-based information systems have been proposed. These include traditional, user-selected passwords, system-generated passwords, passphrases, cognitive passwords and associative passwords. While the mechanisms employed im primary passwords are determined by the operating systems' manufacturers, system designers can select any password mechanism for secondary passwords, to further protect sensitive applications and data files. This paper reports on the results of an empirically based study of passwords characteristics. It provides a comparative evaluation on the memorability and users' subjective preferences of the various passwords mechanisms, and suggest that cognitive passwords and associative passwords seem the most appropriate for secondary passwords. Keywords: Computer security. (kr)
NPS Report NumberNPS-54-90-014
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Zviran, Moshe; Haga, William James (Monterey, California. Naval Postgraduate School, 1990-05); NPS-54-90-011One of the most common control mechanisms for authenticating users of computer based information systems is the use of passwords. However, despite the widespread use of passwords, only little attention has been given to ...
Zviran, Moshe; Haga, William J. (1999);Organizations are more dependent than ever on the reliable operation of their information systems, which have become a key to their success and effectiveness. While the growing dependence on information systems creates ...
Magno, Marianna B. (Monterey, California. Naval Postgraduate School, 1996-09);The use of a password as the only traditional user authentication mechanism has been criticized for its weakness in computer security. One problem is for the user to select short, easy to remember passwords. Another problem ...