Random number generation on the Gluglug x60

2 respuestas [Último envío]
ppereira
Desconectado/a
se unió: 06/28/2014

I am not sure if the following is a security concern for the default x60 configuration, but I noticed that the kernel on my Gluglug x60 appeared to have low entropy (~100) as measured by

cat /proc/sys/kernel/random/entropy_avail

I was able to raise this figure to a reasonable level (>1000) by installing an entropy gathering daemon as follows:

apt-get install haveged

Does anyone know if this is an actual concern or if there is a better way to boost entropy?

jxself
Desconectado/a
se unió: 09/13/2010

Since /dev/random blocks when it's out of entropy I think it's not an issue. It would just mean it takes longer to do things requiring lots of entropy but I suspect you're not generating GPG keys and stuff like that all of the time.

https://en.wikipedia.org/wiki/Entropy_%28computing%29#Linux_kernel

So use your keyboard, disk, etc. as normal since these are all inputs into the pool.

elodie
Desconectado/a
se unió: 01/31/2014

Right. That's the only time a game of Klondyke (Solitaire for Windows) makes sense. Mindlessly moving some pseudo-random distributed cards with the mouse and clicking away does help.