.. Original article at http://text.maze.io/2010/01/08/use-this-to-drain-your-available-entropy
   
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    |    /   /   /   /   |  |     |  /___/   _   |   |   /  /
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   (c) 2010 Wijnand 'maze' Modderman - http://maze.io/


Use this to drain your available entropy
========================================
  
Tired of the huge amounts of available entropy generated by your RNG being wasted? Here is the solution::

  #!/bin/sh
  set -e
  DIR=$(mktemp -t -d rsa-art-XXXXXX)
  trap "rm -f $DIR/key*; rmdir $DIR" EXIT HUP INT QUIT TERM

  while :
  do
      ART=$(ssh-keygen -t rsa -f $DIR/key -N "" | tail -n 11)
      rm -f $DIR/key
      /bin/echo -e "\x1Bc"
      echo "$ART"
  done

It even gives you very neat "RSA ASCII art" ...