Security system for computer software

Details Security system for computer software Security system for computer software

1988-07-13

1990-09-25

Buczinski, Stephen C.

Cryptography

Cryptanalysis

380 25, 380 50, 34082531, 34082534, 235380, 235382, H04L 932

Patent

active

049598619

ABSTRACT:
The disclosure relates to a security system for computer software. A plug-in circuit accompanies each legitimately purchased softward package. The software includes a communication system to decode signals generated by the plug-in circuit. Where the appropriate signal is sensed the program is executed. If the proper code is not sensed the program shuts down.

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