BIB-VERSION:: CS-TR-v2.0 ID:: ncstrl.dartmouthcs//TR90-152 ENTRY:: January 20, 1995 ORGANIZATION:: Dartmouth College, Computer Science TITLE:: A Proactive Password Checker TYPE:: Technical Report (paper) REVISION:: 1 AUTHOR:: Bishop, Matt NOTE:: The 'January' in DATE is an arbitrary placeholder. DATE:: January 1990 RETRIEVAL:: For a paper copy, email RETRIEVAL:: For a paper copy, write to Technical Report Librarian Department of Computer Science Dartmouth College 6211 Sudikoff Laboratory Hanover, NH 03755-3510 USA RETRIEVAL:: PDF at http://www.cs.dartmouth.edu/reports/TR90-152.pdf ABSTRACT:: Password selection has long been a difficult issue; traditionally, passwords are either assigned by the computer or chosen by the user. When the computer does the assignments, 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 impossed upon the passwords. Although experience with this technique has been limited, it appears to have much promise. END:: ncstrl.dartmouthcs//TR90-152