randomsound - ALSA sound card related entropy gathering daemon.

Author

       randomsound was written by Daniel Silverstone <dsilvers@digital-scurf.org>

Pepperfish                                       August 18, 2007                                  RANDOMSOUND(8)

Description

       Using  the  low  order bit of the ADC output of your sound card, randomsound gathers entropy, debiases it
       and offers it up to your kernel's random pool. It can be tweaked to only write  into  the  pool  when  it
       drops below a certain level, and to back off once the pool is full enough. This build will set your sound
       card  into  16  bit mono unsigned input at 8KHz.  If your sound card cannot do that then you will need to
       change the defines in asoundrunner.c and recompile the package. You must have set up asound  as  root  on
       your machine. This can be done with the asoundconf tool and its set-default-card command.

       You  may  also need to use the alsamixer to ensure that the sound card is generating plenty of noise. Set
       all the gains nice and high, turn on any boosters you have. If  you  have  a  V_REFLVL  or  similar  then
       consider tweaking that.

Name

       randomsound - ALSA sound card related entropy gathering daemon.

Options

-D     Daemonize

       -v     Increase verbosity. Can be used more than once.

       -m     specify minimum number of bits of entropy in the pool.

       -M     specify max number of bits in the pool.

       -b     specify number of bytes of randomness to buffer for use.

       -d     specify number of bytes to deposit into the pool each time.

       -h     display help message

       -V     display version information.