Technique for preventing illegal invocation of software programs
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United States of America Patent
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Aug 17, 2010
Grant Date -
Mar 23, 2006
app pub date -
Sep 21, 2004
filing date -
Sep 21, 2004
priority date (Note) -
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Abstract
A technique for preventing illegal invocation of software programs is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for preventing illegal invocation of software programs in a computer system having a first program that invokes a second program. The method may comprise generating a first digital signature for the first program. The method may also comprise making one or more permitted digital signatures available to the second program. The method may further comprise generating a first parameter for the first program, wherein the first parameter is cryptographically computed based on the first digital signature, a memory address for storing the first parameter, and a first system code that is unique to the computer system. The method may additionally comprise making the first parameter available to the second program.
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