Copyright (C) 2013-2014 David Mazieres
Distribution permitted under the GNU General Public License (GPL)
version 2 or later. Acceptable versions of this license are available
at the following URLs:
If the Free Software Foundation publishes a higher-numbered GPL
license, you may at your option distribute this software under the
terms of that license as well.
Furthermore, the copyright holder grants you the right to classify the
collection of crypgtographic hash functions in OpenSSL's libcrypto as
a "system library" and a "major component of the operating system."