Hi Mark,
on the mainframe entropy is not so easy as there's no computer mouse to
move around ;-). I recommend
to do some I/O intensive work to a FICON disk, the device driver is our
prominent source of entropy (moving
platters seek times least significant bits, maybe we need to rethink that
in the light of upcoming SSDs) . Oh,
and the crypto cards do have a hardware entropy source, but I don't know if
GPG would use that.
with kind regards
Carsten Otte
IBM Linux Technology Center / Boeblingen lab
--
omnis enim res, quae dando non deficit, dum habetur et non datur, nondum
habetur, quomodo habenda est
Mark Jacobs
<mark.jacobs@cust
serv.com> To
Sent by: Linux on LINUX-390@vm.marist.edu
390 Port cc
<linux-...@vm.mar
ist.edu> Subject
GPG Key Ring Generation on zLinux
Fails
20.05.2011 16:00
Please respond to
mark.jacobs@custs
erv.com
I'm attempting to generate a key ring in a zLinux environment using gpg
but I can't get enough entropy to supply the generation process with
enough random bytes.
Not enough random bytes available. Please do some other work to give the
OS a chance to collect more entropy! (Need 284 more bytes)
I've tried everything I can think of, and my zLinux support team says
that this is a known problem with virtualized environments. Does anyone
have any suggestions on how to get key ring generation to reliably work
on zLinux?
--
Mark Jacobs
Time Customer Service
Tampa, FL
----
Some people are electrifying, they light up
a room when they leave.
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