Re: TPM support status ?

[Michal Suchanek]

2009/8/20 Vladimir 'phcoder' Serbinenko <address@hidden>:
> On Thu, Aug 20, 2009 at 1:15 PM, Michael Gorven<address@hidden> wrote:
>> On Thursday 20 August 2009 12:58:50 Michal Suchanek wrote:
>>> How does TPM protest your machine from physical access? I thought it's
>>> a small chip somewhere on the board, not a steel case around the
>>> machine.
>>
>> The TPM can be configured to only divulge the secret once it's been proven
>> that only the intended software is running.
>>
> Proven? As any chip it can only know what's on its pins. High-tech
> electric lab equipment can fool any chip. Asking nicely at university
> most students can gain access to one.

I doubt this is even necessary. What's the real difference between
mounting the chip on the mainboard and plugging one into an external
port (besides the inability to use content encrypted by the chip on
different machine if you wanted to)?

Thanks

Michal