Method of obfuscating computer instruction streams

Details Method of obfuscating computer instruction streams Method of obfuscating computer instruction streams

2008-01-22

2008-01-22

Vu, Kim (Department: 2135)

Information security

Prevention of unauthorized use of data including prevention...

C726S027000, C726S030000, C713S162000, C713S165000, C713S167000, C713S189000, C717S136000, C717S140000, C717S148000, C717S162000

Reexamination Certificate

active

07322045

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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