Method to protect software against unwanted use with a...

Details Method to protect software against unwanted use with a... Method to protect software against unwanted use with a...

2002-06-25

2008-10-07

Colin, Carl (Department: 2136)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

C713S152000, C713S167000, C713S187000, C713S190000, C713S193000, C713S194000, C726S026000

Reexamination Certificate

active

07434064

ABSTRACT:
The invention concerns a process to protect a vulnerable software working on a data processing system against its unauthorized usage using a processing and memorizing unit. The process comprises defining: 1) a set of elementary functions whose elementary functions are liable to be executed in a processing and memorizing unit 2) a set of elementary commands, said elementary commands being liable to be executed in the data processing system and to trigger the execution in a processing and memorizing unit, of the elementary functions 3) exploitation means designed to be used in a processing and memorizing unit during a usage phase, and enabling to execute the elementary functions of said set.

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