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Re: Good design for a Algorithmically Derived Passphrase for FDE (?!)
From: "Ali, Saqib" <docbook.xml () gmail com>
Date: Mon, 19 Nov 2007 08:06:30 -0800

On Nov 17, 2007 8:51 PM, ManInWhite <maninwhite () tpg com au> wrote:
It has been suggested that we use an
algorithm derived passphrase based on some unique hardware number.
[ HDD Serial# / Laptop Serial# ]

So when the laptop is stolen, the thief will also have all these
serial number, and if they get hold of their algorithm, they can
re-construct passphrase for any laptop.

this kind of scheme may work for equipment that doesn't leave the
facility e.g. servers in datacenter. But definitely don't use this for

I suspect you are trying to use BitLocker, which lack centralized key
management. I would suggest you take a look at some other holistic
solutions for encrypting your laptops.


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