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[liberationtech] CryptoParty Handbook

Maxim Kammerer mk at
Thu Oct 4 23:59:33 PDT 2012

On Fri, Oct 5, 2012 at 8:33 AM, Eugen Leitl <eugen at> wrote:
> Wear levelling is a function of newer devices (your old
> USB flash sticks are unlikely to have it, but your new
> SSD definitely has) and it hides damaged blocks
> transparently by using the overprovisioned flash
> block pool (its size depending on on whether consumder or
> enterprise drive, the latter having more overprovisioning).

Does it mean that you ran the commands above on a FAT32-formatted
media and got a result different from 0?

> It might be possible to access the damaged blocks
> via a debug function, or by flashing the drive
> with custom firmware.

Did you try a bigger file?

Maxim Kammerer
Liberté Linux:

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