Apparatus and method for preventing unauthorized use of computer

Details Apparatus and method for preventing unauthorized use of computer Apparatus and method for preventing unauthorized use of computer

1982-02-25

1984-07-03

Zache, Raulfe B.

Boots, shoes, and leggings

G06F 100

Patent

active

044583150

ABSTRACT:
An apparatus and method for detecting and preventing the unauthorized use of computer programs. The program to be protected is arranged to store first key information and a key means which is physically separate from the program is provided to the customer with each program which is sold. The key means stores second key information, and is adapted for association with a computer in which the program is to be processed. Either the first program routine, or one which is performed before a significant part of the program, is arranged to access the first and second key information and to perform a comparison operation. If the first and second information bear a predetermined relationship to each other, then it is known that the appropriate key means has been deployed by the customer on the computer, and that the use of the program is authorized. However, if the first and second key information do not bear said predetermined relationship, it is concluded that use of the program is not authorized, and processing of the program may be terminated.

REFERENCES:
patent: 3544777 (1970-12-01), Winkler
patent: 3806882 (1974-04-01), Clarke
patent: 3978454 (1976-08-01), Willard
patent: 4117317 (1978-09-01), Dooley, Jr. et al.
patent: 4118789 (1978-10-01), Casto et al.
Chapter I-The TSS Hardware Device, Wild Hare Co., pp. 1-5, (no date).
Chapter II-Loading the TSS System, Wild Hare Co., pp. 1-5, (no date).

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