[ale] A little math

[Pat Regan]

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On 02/11/10 06:49, Geoffrey wrote:
> I'm really trying to understand the significance of writing random data. 
>   What's the difference between that and simply writing nulls?  You are 
> overwriting it?

Filling the disk with random data makes it harder to tell which parts of
the disk are encrypted and which parts just haven't been written to yet.

If the drive is 99% zeros an attacker will only have to attack 1% of the
drive.

Pat
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