Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1990-03-23
1991-08-20
Tarcza, Thomas H.
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 49, H04K 100
Patent
active
050420674
ABSTRACT:
Disclosed is a password security method in a man-machine system for keeping the secrecy of a password during a setting process of the system. To keep not only the secret of the password but also the presence of the password from unauthorized users, the method comprises a prompt displaying step for prompting to enter an equipment name and not prompting to enter the password; a password discriminating step to discriminate whether or not a correct password is entered; a step for entering a normal mode when the correct password is not detected; and step for entering a password mode when the correct password is detected.
REFERENCES:
patent: 4211919 (1980-07-01), Ugon
patent: 4256955 (1981-03-01), Giraud et al.
patent: 4910773 (1990-03-01), Hazard et al.
patent: 4910774 (1990-03-01), Barakat
patent: 4926481 (1990-05-01), Collins, Jr.
patent: 4942606 (1990-07-01), Kaiser et al.
Cain David
Fujitsu Limited
Tarcza Thomas H.
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