md4.py and U32.py Both modules downloaded from http://www.oocities.org/rozmanov/python/md4.html. Licensed under LGPL pyDes.py 2.0.0 Downloaded from http://twhiteman.netfirms.com/des.html Licensed under public domain sha256.py Downloaded from http://xbmc-addons.googlecode.com/svn-history/r1686/trunk/scripts/OpenSubtitles_OSD/resources/lib/sha256.py Licensed under MIT