Redistribution of the CSPRNG
modules and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice
and this permission notice in its entirety.
2. Redistributions in binary form must reproduce the copyright notice in
the documentation and/or other materials provided with the distribution.
3. A copy of any bugfixes or enhancements made must be provided to the
author, <pgut001@cs.auckland.ac.nz> to allow them to be added to the
baseline version of the code.