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This package was debianized by Marek Habersack <grendel@debian.org> on
Tue, 4 Nov 2003 18:23:07 +0100.
The current Debian maintainer is Magnus Holmgren <magnus@kibibyte.se>.
It was downloaded from http://www.lysator.liu.se/~nisse/nettle/
Upstream Author: Niels Möller
Copyright:
Copyright © 2001-2006 Niels Möller
Some parts are Copyright © the Free Software Foundation and various
people. See below and source code comments for details.
This package 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; version 2 dated June, 1991.
This package 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.
Nettle is distributed under the GNU General Public License. However,
most of the individual files are dual licensed under less restrictive
licenses like the GNU Lesser General Public License (LGPL), or are in
the public domain. This means that if you don't use the parts of
nettle that are GPL-only, you have the option to use the Nettle
library just as if it were licensed under the LGPL. To find the
current status of particular files, you have to read the copyright
notices at the top of the files.
A list of the supported algorithms, their origins and licenses (from
the manual):
AES
The implementation of the AES cipher (also known as rijndael) is
written by Rafael Sevilla. Assembler for x86 by Rafael Sevilla and
Niels Möller, Sparc assembler by Niels Möller. Released under the
LGPL.
ARCFOUR
The implementation of the ARCFOUR (also known as RC4) cipher is
written by Niels Möller. Released under the LGPL.
ARCTWO
The implementation of the ARCTWO (also known as RC2) cipher is
written by Nikos Mavroyanopoulos and modified by Werner Koch and
Simon Josefsson. Released under the LGPL.
BLOWFISH
The implementation of the BLOWFISH cipher is written by Werner
Koch, copyright owned by the Free Software Foundation. Also hacked
by Ray Dassen and Niels Möller. Released under the GPL.
CAST128
The implementation of the CAST128 cipher is written by Steve Reid.
Released into the public domain.
DES
The implementation of the DES cipher is written by Dana L. How, and
released under the LGPL.
MD2
The implementation of MD2 is written by Andrew Kuchling, and hacked
some by Andreas Sigfridsson and Niels Möller. Python Cryptography
Toolkit license (essentially public domain).
MD4
This is almost the same code as for MD5 below, with modifications
by Marcus Comstedt. Released into the public domain.
MD5
The implementation of the MD5 message digest is written by Colin
Plumb. It has been hacked some more by Andrew Kuchling and Niels
Möller. Released into the public domain.
SERPENT
The implementation of the SERPENT cipher is written by Ross
Anderson, Eli Biham, and Lars Knudsen, adapted to LSH by Rafael
Sevilla, and to Nettle by Niels Möller. Released under the GPL.
SHA1
The C implementation of the SHA1 message digest is written by Peter
Gutmann, and hacked some more by Andrew Kuchling and Niels Möller.
Released into the public domain. Assembler for x86 by Niels Möller,
released under the LGPL.
SHA256
Written by Niels Möller, using Peter Gutmann's SHA1 code as a
model. Released under the LGPL.
TWOFISH
The implementation of the TWOFISH cipher is written by Ruud de
Rooij. Released under the LGPL.
RSA
Written by Niels Möller, released under the LGPL. Uses the GMP
library for bignum operations.
DSA
Written by Niels Möller, released under the LGPL. Uses the GMP
library for bignum operations.
On Debian GNU/Linux systems, the complete texts of the GNU General
Public License and the GNU Lesser General Public License can be found
in /usr/share/common-licenses/GPL and /usr/share/common-licenses/LGPL,
respectively.