Main author:
Laurent Bercot <ska-skaware@skarnet.org>
Contributors:
Luis Ressel <aranea@aixah.de>
Thanks to:
Dan J. Bernstein <djb@cr.yp.to>
Jean Marot <jean.marot@salle-s.org>
Jorge Almeida <jalmeida@math.ist.utl.pt>
Vallo Kallaste <kalts@estpak.ee>