A Proactive Password Checker
Author(s): Matt Bishop

Date: May 1991
Publication: Proceedings of the 7th International Conference on Information Security / PCS-TR90-152
Page(s): 169 - 181
Source 1: http://www1.cs.dartmouth.edu/reports/TR90-152.pdf
Source 2: http://seclab.cs.ucdavis.edu/papers/mb91c.ps

Abstract:
Password selection has long been a difficult issue; traditionally, passwords are either assigned by computer or chosen by the user. When the computer does the assignment, the passwords are often hard to remember; when the user makes the selection, the passwords are often easy to guess. This paper describes a technique, and a mechanism, to allow users to select passwords which to them are easy to remember but to others would be very difficult to guess. The technique is site, user, and group configurable, and allows rapid changing of constraints imposed upon the passwords. Although experience with this technique has been limited, it appears to have much promise.



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