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Home/Magazine Archive/November 1979 (Vol. 22, No. 11)/Password security: a case history/Abstract

Password security: a case history

By Robert Morris, Ken Thompson
Communications of the ACM, November 1979, Vol. 22 No. 11, Pages 594-597
10.1145/359168.359172
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This paper describes the history of the design of the password security scheme on a remotely accessed time-sharing system. The present design was the result of countering observed attempts to penetrate the system. The result is a compromise between extreme security and ease of use.

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