Method of obfuscating computer instruction streams
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United States of America Patent
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Feb 17, 2004
Grant Date -
Jan 30, 2003
app pub date -
Jul 25, 2001
filing date -
Jul 25, 2001
priority date (Note) -
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Abstract
Methods and apparatuses for obfuscating computer instruction streams. In one aspect of the invention, an exemplary method includes breaking each of at least two operative instruction streams into a plurality of parts and interleaving the parts into a new instruction stream. In another aspect of the invention, an exemplary method includes breaking each of at least two operative instruction streams into a plurality of parts and interleaving the parts with obfuscation codes into a new instruction stream. The obfuscation codes interrelate the parts from different instruction streams to prevent reversal of interleaving.
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