Re: urandom is too slow
From: Lasse Kärkkäinen
Date: Thu Nov 01 2012 - 21:10:06 EST
On 30.10.2012 23:38, Alan Cox wrote:
If you want to wipe a disk issue a security erase command via hdparm.
There is no guarantee that simply writing crap all over it will re-use
the same sectors of physical media, and for a flash drive it causes
massive wear and takes forever while a security erase is normally near
immediate. Alan
Thank you for your answers, they should be very helpful for someone who
is actually blanking or shredding their disks. However, I am just
genuinely interested on why is no better CSPRNG algorithm used in the
kernel (is it simply because no-one sent a patch or am I missing
something?).
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