To be fair enough I should probably add: The original use of /dev/urandom seems to not the safest either. It get's just 8 bit of entropy... not sure whether this is already enough as initial seed; maybe it actually (I'm not a crypto expert).
But I do know, that things like PID, PPID, time and that like are highly predictive. Best wishes, Chris.
smime.p7s
Description: S/MIME cryptographic signature