Method for protecting an application program and related computer program product

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9355229
APP PUB NO 20150033354A1
SERIAL NO

13976465

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A Method for protecting an application program executable on a computer against reverse engineering, said application is created to run with at least one selected dynamic link library (DLL) on said computer, comprises the steps of: adding a specific library loader to the executable application program, said loader either contains or has access to said dynamic link library; setting modified references to said dynamic link library such that upon loading said application program and said loader into the main memory of said computer, said dynamic link library is initialized by said library loader instead of the operating system; The library loader and the pseudo-statically linked library could be embedded into the application program, thereby using unused space within the application. The protected application presents itself as a monolithic application without the vulnerable interface to a DLL.

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Patent Owner(s)

Patent OwnerAddress
WIBU-SYSTEMS AGZIMMERSTR 5 KARLSRUHE 76137

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Schmitt, Alexander Sinsheim-Reihen, DE 22 131
Wichmann, Peer Bruchsal, DE 4 137

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