Source archive: dropbear_2022.83.orig.tar.gz
Files in concatenation order:
dropbear/LICENSE
dropbear/debian/copyright
dropbear/libtomcrypt/LICENSE
dropbear/libtommath/LICENSE

Dropbear contains a number of components from different sources, hence there
are a few licenses and authors involved. All licenses are fairly 
non-restrictive.


The majority of code is written by Matt Johnston, under the license below.

Portions of the client-mode work are (c) 2004 Mihnea Stoenescu, under the
same license:

Copyright (c) 2002-2020 Matt Johnston
Portions copyright (c) 2004 Mihnea Stoenescu
All rights reserved.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

=====

LibTomCrypt and LibTomMath are written by Tom St Denis and others, see
libtomcrypt/LICENSE and libtommath/LICENSE.

=====

sshpty.c is taken from OpenSSH 3.5p1, 
  Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
                     All rights reserved
 "As far as I am concerned, the code I have written for this software
  can be used freely for any purpose.  Any derived versions of this
  software must be clearly marked as such, and if the derived work is
  incompatible with the protocol description in the RFC file, it must be
  called by a name other than "ssh" or "Secure Shell". "

=====

loginrec.c
loginrec.h
atomicio.h
atomicio.c
and strlcat() (included in util.c) are from OpenSSH 3.6.1p2, and are licensed
under the 2 point BSD license.

loginrec is written primarily by Andre Lucas, atomicio.c by Theo de Raadt.

strlcat() is (c) Todd C. Miller

=====

Import code in keyimport.c is modified from PuTTY's import.c, licensed as
follows:

PuTTY is copyright 1997-2003 Simon Tatham.

Portions copyright Robert de Bath, Joris van Rantwijk, Delian
Delchev, Andreas Schultz, Jeroen Massar, Wez Furlong, Nicolas Barry,
Justin Bradford, and CORE SDI S.A.

Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation files
(the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of the Software,
and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE
FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

=====

curve25519.c:

Modified TweetNaCl version 20140427, a self-contained public-domain C library.
https://tweetnacl.cr.yp.to/

Contributors (alphabetical order)
Daniel J. Bernstein, University of Illinois at Chicago and Technische
Universiteit Eindhoven
Bernard van Gastel, Radboud Universiteit Nijmegen
Wesley Janssen, Radboud Universiteit Nijmegen
Tanja Lange, Technische Universiteit Eindhoven
Peter Schwabe, Radboud Universiteit Nijmegen
Sjaak Smetsers, Radboud Universiteit Nijmegen

Acknowledgments
This work was supported by the U.S. National Science Foundation under grant
1018836. "Any opinions, findings, and conclusions or recommendations expressed
in this material are those of the author(s) and do not necessarily reflect the
views of the National Science Foundation."
This work was supported by the Netherlands Organisation for Scientific
Research (NWO) under grant 639.073.005 and Veni 2013 project 13114.
Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Contact: Matt Johnston <matt@ucc.asn.au>
Source: https://matt.ucc.asn.au/dropbear/
Upstream-Name: dropbear

Files: *
Copyright: © 2002-2022 Matt Johnston <matt@ucc.asn.au>
           © 2004 Mihnea Stoenescu
License: MIT

Files: libtomcrypt/* libtommath/*
Copyright: Tom St Denis
License: public-domain
 Tom St Denis's license is as follows:
 .
 This software is public domain.  As should all quality software be.

Files: sshpty.c sshpty.h
Copyright: © 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
License: OpenSSH

Files: atomicio.c atomicio.h loginrec.c loginrec.h progressmeter.c progressmeter.h
Copyright: © 1995,1999 Theo de Raadt
           © Andre Lucas
           © 2003 Nils Nordman
License: BSD-2-clause

Files: chachapoly.c gcm.c chachapoly.h gcm.h
Copyright: © 2002,2003 Matt Johnston <matt@ucc.asn.au>
           © 2020 Vladislav Grishenko
License: MIT

Files: curve25519.c
Copyright: Matt Johnston
           Daniel J. Bernstein
           Bernard van Gastel
           Wesley Janssen
           Tanja Lange
           Peter Schwabe
           Sjaak Smetsers
License: public-domain
 Modified TweetNaCl version 20140427, a self-contained public-domain C library.
 https://tweetnacl.cr.yp.to/

Files: keyimport.c
Copyright: © 2003-2022 Matt Johnston <matt@ucc.asn.au>
           © 1997-2003 Simon Tatham
License: MIT

Files: compat.c dbutil.c
Copyright: © 2002,2003 Matt Johnston <matt@ucc.asn.au>
           © 1998 Todd C. Miller <Todd.Miller@courtesan.com>
           © 1990, 1993 The Regents of the University of California
License: MIT and BSD-3-clause

Files: scp.c scpmisc.c scpmisc.h
Copyright: © 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
           © 1999 Theo de Raadt
           © Aaron Campbell
           © 1983, 1990, 1992, 1993, 1995 The Regents of the University of California
License: OpenSSH and BSD-2-clause and BSD-3-clause

Files: debian/*
Copyright: © 2003 Grahame Bowland <grahame.angrygoats.net>
           © 2003-2005 Matt Johnston <matt@ucc.asn.au>
           © 2004-2014 Gerrit Pape <pape@smarden.org>
           © 2015-2022 Guilhem Moulin <guilhem@debian.org>
License: MIT

Files: debian/initramfs/*
Copyright: © 2009-2010 Chris <debian@x.ray.net>
           © 2015-2022 Guilhem Moulin <guilhem@debian.org>
License: GPL-2+
 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; either version 2 of the License, or
 (at your option) any later version.
 .
 The full text of version 2 of the GPL is distributed in
 /usr/share/common-licenses/GPL-2 on Debian systems.

Files: debian/tests/remote-unlocking debian/tests/remote-unlocking.d/*
Copyright: © 2019 Johannes 'josch' Schauer <josch@debian.org>
           © 2021-2022 Guilhem Moulin <guilhem@debian.org>
License: MIT

License: MIT
 Permission is hereby granted, free of charge, to any person obtaining a
 copy of this software and associated documentation files (the
 "Software"), to deal in the Software without restriction, including
 without limitation the rights to use, copy, modify, merge, publish,
 distribute, sublicense, and/or sell copies of the Software, and to
 permit persons to whom the Software is furnished to do so, subject to
 the following conditions:
 .
 The above copyright notice and this permission notice shall be included
 in all copies or substantial portions of the Software.
 .
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

License: BSD-2-clause
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:
 1. Redistributions of source code must retain the above copyright notice, this
    list of conditions and the following disclaimer.
 2. 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.
 .
 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.

License: BSD-3-clause
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:
 1. Redistributions of source code must retain the above copyright notice, this
    list of conditions and the following disclaimer.
 2. 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.
 3. Neither the name of the University 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.

License: OpenSSH
 Tatu Ylonen's original license is as follows:
 .
 As far as I am concerned, the code I have written for this software can be
 used freely for any purpose.  Any derived versions of this software must be
 clearly marked as such, and if the derived work is incompatible with the
 protocol description in the RFC file, it must be called by a name other than
 "ssh" or "Secure Shell".
LibTomCrypt is licensed under DUAL licensing terms.

Choose and use the license of your needs.

[LICENSE #1]

LibTomCrypt is public domain.  As should all quality software be.

Tom St Denis

[/LICENSE #1]

[LICENSE #2]

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
                    Version 2, December 2004

 Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>

 Everyone is permitted to copy and distribute verbatim or modified
 copies of this license document, and changing it is allowed as long
 as the name is changed.

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

  0. You just DO WHAT THE FUCK YOU WANT TO. 

[/LICENSE #2]
                          The LibTom license

This is free and unencumbered software released into the public domain.

Anyone is free to copy, modify, publish, use, compile, sell, or
distribute this software, either in source code form or as a compiled
binary, for any purpose, commercial or non-commercial, and by any
means.

In jurisdictions that recognize copyright laws, the author or authors
of this software dedicate any and all copyright interest in the
software to the public domain. We make this dedication for the benefit
of the public at large and to the detriment of our heirs and
successors. We intend this dedication to be an overt act of
relinquishment in perpetuity of all present and future rights to this
software under copyright law.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.

For more information, please refer to <http://unlicense.org/>
