Software control flow watermarking
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United States of America Patent
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Feb 25, 2014
Grant Date -
Nov 19, 2009
app pub date -
Jun 11, 2009
filing date -
Aug 18, 2003
priority date (Note) -
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Abstract
The present invention is a system and method of software control flow watermarking including the steps of obtaining a program for protection, generating at least one watermark value using a formula or process from an external file, and placing the at least one watermark value in CASE values of the program. The system and method may further include determining the at least one watermark value by a formula with at least one variable. The formula may also contain a variable from outside of the program. The system may also stop the program if the variable from outside of the program is incorrect.
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