1 secnet - flexible VPN software
2 ==============================
5 Copyright 1995-2003 Stephen Early <steve@greenend.org.uk>
6 Copyright 2002-2014 Ian Jackson <ijackson@chiark.greenend.org.uk>
7 Copyright 1991 Massachusetts Institute of Technology
8 Copyright 1998 Ross Anderson, Eli Biham, Lars Knudsen
9 Copyright 1993 Colin Plumb
10 Copyright 1998 James H. Brown, Steve Reid
11 Copyright 2000 Vincent Rijmen, Antoon Bosselaers, Paulo Barreto
12 Copyright 2001 Joey Hess
13 Copyright 2000-2006 Joachim Henkea
14 Copyright 2012-2016 Adrien BĂ©raud
15 Copyright 2015 Guillaume Jacquenot
16 Copyright 2016 SunDwarf aka eyesismine
17 Copyright 2001 Saul Kravitz
18 Copyright 2004 Fabrice Bellard
19 Copyright 2002 Guido Draheim
20 Copyright 2005-2010 Free Software Foundation, Inc.
21 Copyright 1995-2001 Jonathan Amery
22 Copyright 1995-2003 Peter Benie
23 Copyright 2011 Richard Kettlewell
24 Copyright 2012 Matthew Vernon
25 Copyright 2013-2019 Mark Wooding
26 Copyright 1995-2013 Simon Tatham
27 Copyright 2012,2013 "Omnifarious" and "btel" on Stackoverflow
33 secnet is distributed under the terms of the GNU General Public
34 License, version 3 or later.
36 secnet is distributed in the hope that it will be useful, but WITHOUT
37 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
38 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
41 The file COPYING in the source tree contains a copy of the GNU GPL v3.
42 A copy of this licence can be found on Debian systems (and
43 derivatives) in /usr/share/common-licenses/GPL-3.
45 Some files contain a notice with the abbreviated form:
46 SPDX-License-Identifier: GPL-3.0-or-later
47 As is conventional, this should be read as a licence grant.
53 Some of the source code has more liberal licences, all of which are
54 GPLv3+-compatible. See the individual source files (or directories)
57 These portions can be used, distributed, and modified, separately,
58 under the more liberal licence. But when they are used or distributed
59 as part of secnet, the GPL applies to the combination.
65 Contributions to secnet are accepted based on the git commit
66 Signed-off-by convention, by which the contributors' certify their
67 contributions according to the Developer Certificate of Origin version
68 1.1 - see the file DEVELOPER-CERTIFICATE.
70 In accordance with the Developer Certificate of Origin, if you make a
71 contribution to one of the incorporated works with a more liberal
72 licence, you will be taken to have made your contribution under that
75 If you create a new file please be sure to add an appropriate licence
76 header. In the main parts of secnet this should be something like:
77 * This file is part of secnet.
78 * See LICENCE and CREDITS for full list of copyright holders.
79 * SPDX-License-Identifier: GPL-3.0-or-later
80 * There is NO WARRANTY.