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dexter has posted comments on this change by dexter. (
https://gerrit.osmocom.org/c/pysim/+/38164?usp=email )
Change subject: pySim-prog: generate Ki and OPc value using _digits() function
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Patch Set 2:
(1 comment)
Patchset:
PS1:
the question is whether this wasn't intended as a
security mechansim (keys should always be random)?
When we use the the _digits
function, then we have the advantage that we can identify the entire dataset via the num
parameter. Otherweise the dataset basically lacks the key material. Each programming cycle
will generate new keys.
However, I also see that there may be security concerns. I can not say how easy it is to
restore the secret random seed from let's say a few IMSIs, which were also generated
with the same seed.
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