Title:
METHOD FOR PROTECTING A SOFTWARE USING A SO-CALLED CONDITIONAL JUMP PRINCIPLE AGAINST ITS UNAUTHORISED USE
Document Type and Number:
WIPO Patent Application WO2003012374
Kind Code:
A3
Abstract:
The invention concerns a method for protecting, from a unit, a vulnerable software against its unauthorised use, said software operating on a data processing system. The method consists in creating a protected software: by selecting in the vulnerable software source, at least a conditional jump; by modifying the vulnerable software source so that a second part of the execution executed in a unit executes at least the functionality of at least a selected conditional jump and provides the data processing system with an information enabling to track the execution at the selected site.
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Inventors:
CUENOD JEAN-CHRISTOPHE (FR)
SGRO GILLES (FR)
SGRO GILLES (FR)
Application Number:
PCT/FR2002/002342
Publication Date:
December 24, 2003
Filing Date:
July 04, 2002
Export Citation:
Assignee:
VALIDY (FR)
CUENOD JEAN-CHRISTOPHE (FR)
SGRO GILLES (FR)
CUENOD JEAN-CHRISTOPHE (FR)
SGRO GILLES (FR)
International Classes:
G06F1/00; G06F21/12; (IPC1-7): G06F1/00
Domestic Patent References:
| WO1999066387A1 | 1999-12-23 | |||
| WO1999001815A1 | 1999-01-14 |
Foreign References:
| US5754646A | 1998-05-19 | |||
| FR2634917A1 | 1990-02-02 |
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