This has been worked around using a simple kernel extension, I don't
know what the current state of it is but it may not be that reliable.
file integrity
You can also use codesign(1) which will alert the user if your
binary has been tampered with since the signing. Note that it
doesn't prevent the user from launching your application and the
functions for determining the integrity of your executable aren't
public.
Keith
There is absolutly no way to completly prevent an user to launch your
application. If he really want, he can resign the app with is own
signature. You can add a check, he can change your binaty to bypass it.
You can just do it a little harder, but as long as the user can do
whatever he want with your executable, he can launch and decompile it.
Don't lose to much time to discourage hackers, it's barely always
useless.
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