[Dailydave] "The organization I belong to doesn't have initals"(that evil dude in Heroes)

Dave Aitel dave at immunityinc.com
Thu Nov 16 15:07:34 Local tim 2006


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dan at geer.org wrote:
>  | I think the real point here is that the majority of people responsible
>  | for security have a backwards mindset.  Most security practitioners
>  | still don't make the assumption that everything is vulnerable and
>  | design around it.  Of course IIS is vulnerable to an unpublished 0day.
>
>
> so, should one write apps with the assumption that
> will be running on compromised hosts?
>
> --dan

Which is exactly what a full Palladium install is. The hardware
separates processes from the OS in such a way that although the OS can
manage your process, it can't read your GPG secret key. The wacky
thing is, not only can you authenticate a process this way, but the
hypervisor can authenticate over the network too, which means you can
authenticate to www.buycrappymusic.com that you are running a
completely unmodified audio player which is spitting encrypted sound
all the way to the speakers.

So there's both good and bad here. GOOD: Attacker with SYSTEM can't
get my GPG key or read my email. BAD: RIAA owns me. GOOD: Thieves
can't get my credit card off my laptop. BAD: I can't do forensics on
the laptop because thief has encrypted his process memory. :>

- -dave

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