Nondisclosing password entry system

Details Nondisclosing password entry system Nondisclosing password entry system

1992-10-01

1995-06-27

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

34082531, 380 23, 2353825, H04K 100

Patent

active

054283493

ABSTRACT:
A password access method/algorithm is effected by generating a pseudorandom array of each letter of the alphabet and the numerals 0 through 9 such that the password entry can be monitored without disclosing the letters or numerals contained in the password. The preferred arrangement is a square matrix of six rows and six columns of characters. The user enters the password by selecting either the row or column containing each letter of a memorized password.

REFERENCES:
patent: 3812403 (1974-05-01), Gartner
patent: 4184148 (1980-01-01), Smagala-Romanoff
patent: 4819267 (1989-04-01), Cargile et al.
patent: 4857914 (1989-08-01), Thrower
patent: 5056141 (1991-10-01), Dyke
patent: 5177789 (1993-01-01), Covert
patent: 5251259 (1993-10-01), Mosley
patent: 5276314 (1994-01-01), Martino et al.
Communications of the ACM, Jul. 1964, p. 420 named Algorithm 235, Random Permutation.

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