Re: [ANNOUNCE] Release Digsig 1.5: kernel module forrun-timeauthentication of binaries

From: Arjan van de Ven
Date: Tue Apr 25 2006 - 02:31:03 EST


On Tue, 2006-04-25 at 00:35 +0100, Nix wrote:
> On Mon, 24 Apr 2006, Arjan van de Ven yowled:
> > On Mon, 2006-04-24 at 21:32 +0100, Nix wrote:
> >> It checks mmap and mprotect with PROT_EXEC, and execve().
> >
> > so no jvm's or flash plugins.
>
> Well, you'll have to sign the flash plugin. This isn't
> sign-at-compilation-time;

the point I made is that a jvm has executable memory capabilities (it
has to) and can be made an elf loader. At which point.. game over.



> > so it's not all that easy as you make it sound
>
> Everyone seems to want the One Security Fix To Rule Them All.

I'm not part of that "everyone". I'm all in favor of removing degrees of
freedom. However this one doesn't, it's just pure fake. This is similar
to posting a sign at your unlocked front door "please don't burgle me
via my front door" while your windows are also open.

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