Re: Re: Hard disk Encryption

["Ali, Saqib" <docbook.xml () gmail com>]

Hi Alexander,

> The main problem is how you store (or derive) the key. For
> example, if you use TPM to store the key, it will be easily
> extracted by an attacker with hardware tools for bus access.

Can you please elaborate on this point? I was under the impression
that in a properly implemented system, the "TPM wrapped and bound
encryption keys" have NO need to leave the TPM. So I am not sure how
tapping in into the bus will reveal the keys.

Thanks
saqib
http://www.full-disk-encryption.net