What version of Ubuntu are you using?
On mine (7.10 aka. Gutsy), /etc/init.d/urandom already propagates the random seed across reboots in /var/lib/urandom/random-seed.
This should make /dev/urandom very safe to use, assuming that file itself is never compromised.
What version of Ubuntu are you using?
On mine (7.10 aka. Gutsy), /etc/init.d/urandom already propagates the urandom/ random- seed.
random seed across reboots in /var/lib/
This should make /dev/urandom very safe to use, assuming that file
itself is never compromised.