Methinks that better than having a program try to get
128 bits out of 20 bits is to start with 128 bits.
This is especially true if one's opponent is a government[*].
At 6 bits per character,
128 bits can be expressed as 22 characters.
Put the output of uuidgen -r through a filter to get 22 charcters.
One might also use it directly.
It seems to me that a tricky part of brute
force is deciding whether a key works.
My guess is that it is done by looking for text or for filesystem features.
I'd expect a partition without a filesystem and filled
with binary passwords to be difficult to crack.
A filesystem that took a second to start because it took that
long to find its header might also present difficulties,
especially if all the files were compressed.
[*] Or not. In some countries, e.g. Britain,
one is required to hand over such keys on demand.
Regarding such things, there is no
right not to testify against oneself.
One might have a choice of crimes.
--
Michael hennebry@xxxxxxxxxxxxxxxxxxxxxx
"Occasionally irrational explanations are required" -- Luke Roman
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