Accession Number:

ADA224245

Title:

A Comparison of Password Techniques for Multilevel Authentication Mechanisms

Descriptive Note:

Technical rept.

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

Report Date:

1990-06-01

Pagination or Media Count:

40.0

Abstract:

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.

Subject Categories:

  • Computer Systems Management and Standards

Distribution Statement:

APPROVED FOR PUBLIC RELEASE