linux-kernel - Re: [PATCH 1/4] integrity: TPM internel kernel interface

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 13 Aug 2008 10:45:48 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Kenneth Goldman <kgoldman@...ibm.com>,
	linux-kernel@...r.kernel.org, linux-security-module@...r.kernel.org
Subject: Re: [PATCH 1/4] integrity: TPM internel kernel interface

On Wed, Aug 13, 2008 at 02:40:40PM +0100, Alan Cox wrote:
> > "goodies", the TCG technology does not protect against hardware
> > attacks such as replacing the TPM with a bogus device, replacing the
> > CRTM hardware, flashing the CRTM using a JTAG cable, lifting a TPM pin>
> > and asserting reset, using a JTAG cable to set breakpoints and alter
> > memory, etc.
> > 
> > For this use case, the attack model is a remote, software attack.  The>
> > user is not considered the attacker.
> 
> Surely if I can replace your TPM with alternative hardware then I can
> also replace it with virtualised software traps.

Yes, which in fact is what most people working on TPM support use
because the real hardware is just too slow :)

> [If there is a good document on this btw please just point me there
> instead and I'll go read further]

I recommend this one:
http://www.few.vu.nl/~srijith/publications/confs/sws07-final.pdf  :)

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/