Portable computer system having password control means for holdi

Details Portable computer system having password control means for holdi Portable computer system having password control means for holdi

1993-08-16

1996-07-16

Beausoliel, Jr., Robert W.

Cryptography

Key management

Having particular key generator

380 25, G06F 1216

Patent

active

055375448

ABSTRACT:
A portable computer system includes a keyboard for inputting at least a password, and a main CPU for controlling the system operation to perform a data processing. Particularly, the computer system further includes a password control section, holding one or more registered passwords as being unreadable by direct access from the main CPU, for allowing the main CPU to perform the data processing when a password identical to one of the registered passwords held therein is input by the keyboard.

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patent: 4959860 (1990-09-01), Watters et al.
patent: 5018096 (1991-05-01), Aoyama
patent: 5115508 (1992-05-01), Hatta
patent: 5120939 (1992-06-01), Claus et al.
patent: 5175853 (1992-12-01), Kardach et al.
patent: 5212729 (1993-05-01), Schafer
patent: 5226080 (1993-07-01), Cole et al.
patent: 5272754 (1993-12-01), Boerhert
patent: 5276888 (1994-01-01), Kardach et al.
patent: 5282247 (1994-01-01), Mclean et al.

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