METHOD OF INTRODUCING DIGITAL SIGNATURE INTO SOFTWARE

摘要

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.