Method of introducing digital signature into software

Details Method of introducing digital signature into software Method of introducing digital signature into software

H - Electricity

04

L

H04L 9/32 (2006.01) G06F 12/14 (2006.01)

Patent

CA 2507361

The invention provides a method of introducing a digital signature into a software program, the software having a plurality of basic blocks, the method comprising the steps of: executing the software program; recording the sequence(s) of basic blocks executed within the software program; modifying the software program to increase the number of threads, thereby increasing the number of possible sequences of basic blocks executed within the software program; and associating the sequence of basic blocks executed by one or more threads with a digital signature. The invention also provides a related method of extracting a digital signature from a software program, related systems, and related computer programs stored on tangible storage media.

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