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Re: Hard disk Encryption
From: "Ali, Saqib" <docbook.xml () gmail com>
Date: Mon, 16 Apr 2007 10:02:07 -0700

Since TPM does not have enough processing power to decrypt the
raw data, the key (used to decrypt the data) has to be
transmitted outside of the TPM.

Not really. IBM's TPM chip can handle bulk data decryption and
encryption easily.

Due to the first assumption, the CPU can be emulated by an
attacker so that external entities cannot distinguish it from
the "normal" CPU; due to the second assumption, after such an
emulation the attacker may have exactly the same secret key.

This is a extremely hypothetical scenario, and I am not even sure if
it will work. Has somebody proved that such a attack is possible?


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