Sorry for not responding earlier, but we'll ship rng-tools with our upcoming
stable release of Grml AKA 2017.05.

Thanks for the suggestion!

It'd be nice if grml would at least feature a entropy gathering daemon to
support hardware randon number generators.

I believe its clear how import *real* random numbers are i.e. in using encrypted
fs and/or key generation for gnupg and/or ssh.

I've found that the inclusion of "rng-tools" is almost a snatch and doesn't take
lots of space...

For a low-cost good entropy gathering device, have a look at "gniibe neug"
[ http://www.gniibe.org/memo/development/gnuk/rng/neug.html ]

Thank you all very much for grml.