A High Security Log-In Procedure
Author(s): George B. Purdy

Date: August 1974
Publication: Communications of the ACM, Volume 17, Number 8
Page(s): 442 - 445
Publisher: ACM
Source 1: http://dx.doi.org/10.1145/361082.361089 - Subscription or payment required

Abstract:
The protection of time sharing systems from unauthorized users is often achieved by the use of passwords. By using one-way ciphers to code the passwords, the risks involved with storing the passwords in the computer can be avoided. We discuss the selection of a suitable one-way cipher and suggest that for this purpose polynomials over a prime modulus are superior to one-way ciphers derived from Shannon codes.



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