I am wondering if there are any techniques to make a CD-Key of the like
unbreakable.  Either by giving it a cancelation date and a periodic renewal
from a server or just by using self md5 signature on the resulting
executable.  I know it must not be easy because the whole software piracy
problem would be resolved but there must be some way to make it really hard
to break it.  Anyone have hints on this issue ?

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From ygingras@ygingras.net  Tue Sep  3 22:18:53 2002

Le 3 Septembre 2002 12:43, vous avez écrit :
> You'll want to peruse Fravia's web site on reverse engineering (and other
> things) http://www.woodmann.com/fravia/protec.htm. That specific page
Thanks for the input.  Some of the tips are quite portable but are there any
special attentions to take when implementing such shemes on a UNIX system ?
Coder for OBB : Ostentatiously Breathless Brother-in-law

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From ygingras@ygingras.net  Wed Sep  4 11:37:37 2002