Re: [PATCH 21/21] MODSIGN: Apply signature checking to modules onmodule load [ver #3]

From: Arjan van de Ven
Date: Sat Dec 10 2011 - 13:36:52 EST


>
> Yes, there may be more than stripped and unstripped. You may need to
> do fancy things. But now, adding a signature is so easy that it's
> not a real problem. And we can always have a hook, like:
>
> if VARIANTS=`make-module-variants $MOD`; then
> for m in $VARIANTS; do sign $m >> $MOD; rm $m; done
> fi

but that requires you to keep the key around.
the most simple and common deployment of this is to generate a key,
build the public key into the kernel, sign the modules as you build the
kernel, and then destroy the key.
And THEN it gets deployed.
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