This is hashalot, packaged and maintained by Matthias Urlichs since Tue, 09 Mar 2004; and then by Adam Borowski since Wed, 31 May 2006. Hashalot was originally downloaded from http://www.stwing.org/~sluskyb/util-linux/ and is now located at http://www.paranoiacs.org/~sluskyb/hacks/hashalot/. Its original author is Ben Slusky , who states in the README file: Most of the code was cribbed from the kerneli.org patch to util-linux, by Marc Mutz . Most of what wasn't, was cribbed from GnuPG, v.1.0.3 (http://www.gnupg.org/). COPYING states: This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this package; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. On Debian systems, the complete text of the GNU General Public License can be found in `/usr/share/common-licenses/GPL'.