secnet is
Copyright 1995-2003 Stephen Early <steve@greenend.org.uk>
- Copyright 2002-2014 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ Copyright 2002-2023 Ian Jackson <ijackson@chiark.greenend.org.uk>
Copyright 1991 Massachusetts Institute of Technology
Copyright 1998 Ross Anderson, Eli Biham, Lars Knudsen
Copyright 1993 Colin Plumb
SPDX-License-Identifier: GPL-3.0-or-later
As is conventional, this should be read as a licence grant.
-
-Incorporated works
-==================
-
-Some of the source code has more liberal licences, all of which are
-GPLv3+-compatible. See the individual source files (or directories)
-for details.
-
-These portions can be used, distributed, and modified, separately,
-under the more liberal licence. But when they are used or distributed
-as part of secnet, the GPL applies to the combination.
+Some included libraries contain CC-BY-SA 4.0 code, which is not
+necessarily compatibile with future GPL versions, so the effective
+licence for a built and distributed secnet package is GPLv3 only.
Contributing
* See LICENCE and CREDITS for full list of copyright holders.
* SPDX-License-Identifier: GPL-3.0-or-later
* There is NO WARRANTY.
+
+
+Incorporated works
+==================
+
+Some of the source code has more liberal licences, all of which are
+GPLv3-compatible, and potentially GPLv3+-compatible.
+
+These portions can be used, distributed, and modified, separately,
+under the more liberal licence. But when they are used or distributed
+as part of secnet, the GPL applies to the combination.
+
+
+ac_prog_cc_no_writeable_strings.m4
+-----------------------------------
+
+This is a version of ax_cflags_no_writable_strings.m4 which is
+now in the Autoconf Archive, where it has this permission notice:
+
+ Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
+
+ 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 3 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 program. If not, see <https://www.gnu.org/licenses/>.
+
+ As a special exception, the respective Autoconf Macro's copyright owner
+ gives unlimited permission to copy, distribute and modify the configure
+ scripts that are the output of Autoconf when processing the Macro. You
+ need not follow the terms of the GNU General Public License when using
+ or distributing such scripts, even though portions of the text of the
+ Macro appear in them. The GNU General Public License (GPL) does govern
+ all other use of the material that constitutes the Autoconf Macro.
+
+ This special exception to the GPL applies to versions of the Autoconf
+ Macro released by the Autoconf Archive. When you make and distribute a
+ modified version of the Autoconf Macro, you may extend this special
+ exception to the GPL to apply to your modified version as well.
+
+
+argparseactionnoyes.py
+----------------------
+
+ Copyright 2012 "Omnifarious" (a user on StackOverFlow)
+ Copyright 2013 "btel" (a user on StackOverFlow)
+
+ https://stackoverflow.com/questions/9234258/in-python-argparse-is-it-possible-to-have-paired-no-something-something-arg/20422915#20422915
+
+ CC-BY-SA 4.0
+ https://creativecommons.org/licenses/by-sa/4.0/legalcode
+ by virtue of
+ https://stackoverflow.com/legal/terms-of-service#licensing
+ which says everything is CC-BY-SA and has a link to v4.0
+ (And which is therefore compatible with secnet's GPLv3)
+
+ all retrieved 4.11.2019 and rechecked 12.11.2022
+
+
+aes.[ch]
+--------
+
+Copyright 2000 Vincent Rijmen, Antoon Bosselaers, Paulo Barreto
+Copyright 2004 Fabrice Bellard
+Copyright 2013 Ian Jackson
+
+Original licence:
+
+ This code is hereby placed in the public domain.
+
+ THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
+ OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+base91-c/
+---------
+
+ Copyright (c) 2000-2006 Joachim Henke
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ - Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ - Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the following
+ disclaimer in the documentation and/or other materials provided
+ with the distribution.
+ - Neither the name of Joachim Henke nor the names of his
+ contributors may be used to endorse or promote products derived
+ from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+
+base91-python/
+---------------
+
+ Copyright (c) 2012 Adrien Beraud
+ Copyright (c) 2015 Guillaume Jacquenot
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the following
+ disclaimer in the documentation and/or other materials provided
+ with the distribution.
+ * Neither the name of Adrien Beraud, Wisdom Vibes Pte. Ltd., nor
+ the names of its contributors may be used to endorse or promote
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+
+configure
+---------
+
+This is autogenerated from various other inputs, including FSF code in
+utotools, regarding which the FSF say this:
+
+ Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
+
+ This configure script is free software; the Free Software Foundation
+ gives unlimited permission to copy, distribute and modify it.
+
+However, in fact, the script is GPLv3+ because it contains pieces
+derived from secnet's aclocal.m4, etc.
+
+
+debian/
+-------
+
+debian/init is from an original init script example by Miquel van
+Smoorenburg and Ian Murdock. Modified by Richard Kettlewell.
+
+debian/rules was once from an example from Joey Hess and is now
+(after most of it was deleted) probably entirely the work of Ian
+Jackson.
+
+The remainder of debian/ is by the authors of Secnet (with possible
+future changes made by Debian contributors).
+
+
+install-sh
+----------
+
+Copyright 1991 by the Massachusetts Institute of Technology
+
+ Permission to use, copy, modify, distribute, and sell this software
+ and its documentation for any purpose is hereby granted without fee,
+ provided that the above copyright notice appear in all copies and
+ that both that copyright notice and this permission notice appear in
+ supporting documentation, and that the name of M.I.T. not be used in
+ advertising or publicity pertaining to distribution of the software
+ without specific, written prior permission. M.I.T. makes no
+ representations about the suitability of this software for any
+ purpose. It is provided "as is" without express or implied
+ warranty.
+
+
+md5.[ch]
+--------
+
+Authored by Colin Plumb in 1993. Public domain statement:
+
+ This code implements the MD5 message-digest algorithm.
+ The algorithm is due to Ron Rivest. This code was
+ written by Colin Plumb in 1993, no copyright is claimed.
+ This code is in the public domain; do with it what you wish.
+
+I interpet this as a blanket permision.
+
+
+serpent.c, serpentsboxes.h
+---------------------------
+
+Authored by Ross Anderson, Eli Biham, Lars Knudsen.
+
+Quoting the Serpent web page:
+
+ Serpent is now completely in the public domain, and we impose no
+ restrictions on its use. This was announced on the 21st August at
+ the First AES Candidate Conference. The optimised implementations
+ in the submission package are now under the General Public License
+ (GPL), although some comments in the code still say otherwise. You
+ are welcome to use Serpent for any application. If you do use it,
+ we would appreciate it if you would let us know!
+
+https://www.cl.cam.ac.uk/~rja14/serpent.html
+
+I have indeed corresponded with Ross Anderson about the use of Serpent
+in secnet, and have updated the source comments to reflect the licence
+upgrade.
+
+
+sha1.c
+------
+
+Authored by Steve Reid and modified by James H. Brown,
+Saul Kravitz, and Ian Jackson.
+
+ 100% Public Domain
+
+I interpet this as a blanket permision.
+
+
+sha512.[ch]
+-----------
+
+ Copyright (C) 2005, 2006, 2008, 2009, 2010 Free Software Foundation, Inc.
+
+ 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 3 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.
+
+ Written by David Madore, considerably copypasting from
+ Scott G. Miller's sha1.c
+
+
+subdirmk/
+---------
+
+Copyright 2019-2020 Ian Jackson
+Copyright 2019 Mark Wooding
+
+ subdirmk and its example is free software; you can redistribute it
+ and/or modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with this library as the file LGPL-2.
+ If not, see https://www.gnu.org/.
+
+ A copy of this licence can be found on Debian systems (and
+ derivatives) in /usr/share/common-licenses/LGPL-3.
+
+
+
+u64.h
+-----
+
+ uint64_t-like operations that work even on hosts lacking uint64_t
+
+ Copyright (C) 2006, 2009, 2010 Free Software Foundation, Inc.
+
+ 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 3 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.
+
+ Written by Paul Eggert.
~ianmdlvl / secnet.git / blobdiff