[ale] little math

[Jim Popovitch]

On Fri, Feb 12, 2010 at 10:26, Geoffrey <lists at serioustechnology.com> wrote:
> Jim Popovitch wrote:
>>
>> But the data that is being repeated is itself random.   So you would
>> essentially be repeating random data sequentially.   The only pattern
>> is the random data.
>
> As I see it, he's creating a single 2 mb random file.  Then write that
> repeatedly to the disk.  You've just created a pattern.

If, as I suggested, he did multiple writes in parallel, and then
destroy the FATs... where's the harm?

> If you now write encrypted data to that drive, you can easily spot it as the rest
> of the disk is chunks of 2mb data that are all identical.

But the new data being written _is_ encrypted, right?  And it will be
written on top of patterns of random data, right?

What's specifically wrong with that?

-Jim P.