libgcrypt11-doc 1.5.3-2ubuntu4 / usr / share / doc / libgcrypt11-doc / copyright

This package was debianized by Ivo Timmermans <ivo@debian.org> on
Fri,  3 Aug 2001 10:02:38 +0200. 
It was taken over by Matthias Urlichs <smurf@debian.org>, and is now
maintained by Andreas Metzler <ametzler@debian.org> Eric Dorland
<eric@debian.org>, James Westby <jw+debian@jameswestby.net>


It was downloaded from http://ftp.gnupg.org/gcrypt/libgcrypt/.

Up to end of 2012 libgcrypt copyright was owned solely by FSF, since then
contributions without copyright assignment to the FSF have been integrated. 

Upstream Authors (from AUTHORS)
--------------------------------------------
Authors with a FSF copyright assignment
=======================================

GNUPG	Werner Koch		  1998-02-23
Assigns GNU Privacy Guard and future changes.
Assignment for future changes terminated on 2012-12-04.
wk@gnupg.org
Designed and implemented GnuPG.

GNUPG	Matthew Skala		   1998-08-10
Disclaims changes.
mskala@ansuz.sooke.bc.ca
Wrote cipher/twofish.c.

GNUPG	Natural Resources Canada    1998-08-11
Disclaims changes by Matthew Skala.

GNUPG	Michael Roth	Germany     1998-09-17
Assigns changes.
mroth@nessie.de
Wrote cipher/des.c.
Changes and bug fixes all over the place.

GNUPG	Niklas Hernaeus 	1998-09-18
Disclaims changes.
nh@df.lth.se
Weak key patches.

GNUPG	Rémi Guyomarch		1999-05-25
Assigns past and future changes. (g10/compress.c, g10/encr-data.c,
g10/free-packet.c, g10/mdfilter.c, g10/plaintext.c, util/iobuf.c)
rguyom@mail.dotcom.fr

ANY     g10 Code GmbH           2001-06-07
Assignment for future changes in Libgcrypt terminated on 2012-12-04.
Code marked with ChangeLog entries of g10 Code employees.

LIBGCRYPT Timo Schulz           2001-08-31
Assigns past and future changes.
twoaday@freakmail.de

LIBGCRYPT Simon Josefsson       2002-10-25
Assigns past and future changes to FSF (cipher/{md4,crc}.c, CTR mode,
CTS/MAC flags, self test improvements)
simon@josefsson.org

LIBGCRYPT Moritz Schulte	2003-04-17
Assigns past and future changes.
moritz@g10code.com

GNUTLS  Nikolaos Mavrogiannopoulos  2003-11-22
nmav@gnutls.org
Original code for cipher/rfc2268.c.

LIBGCRYPT	The Written Word	2005-04-15
Assigns past and future changes. (new: src/libgcrypt.pc.in,
src/Makefile.am, src/secmem.c, mpi/hppa1.1/mpih-mul3.S,
mpi/hppa1.1/udiv-qrnnd.S, mpi/hppa1.1/mpih-mul2.S,
mpi/hppa1.1/mpih-mul1.S, mpi/Makefile.am, tests/prime.c,
tests/register.c, tests/ac.c, tests/basic.c, tests/tsexp.c,
tests/keygen.c, tests/pubkey.c, configure.ac, acinclude.m4)

LIBGCRYPT       Brad Hards       2006-02-09
Assigns Past and Future Changes
bradh@frogmouth.net
(Added OFB mode. Changed cipher/cipher.c, test/basic.c doc/gcrypt.tex.
 added SHA-224, changed cipher/sha256.c, added HMAC tests.)

LIBGCRYPT       Hye-Shik Chang   2006-09-07
Assigns Past and Future Changes
perky@freebsd.org
(SEED cipher)

LIBGCRYPT       Werner Dittmann  2009-05-20
Assigns Past and Future Changes
werner.dittmann@t-online.de
(mpi/amd64, tests/mpitests.c)

GNUPG           David Shaw
Assigns past and future changes.
dshaw@jabberwocky.com
(cipher/camellia-glue.c and related stuff)

LIBGCRYPT       Andrey Jivsov    2010-12-09
Assigns Past and Future Changes
openpgp@brainhub.org
(cipher/ecc.c and related files)


Authors with a DCO
==================

DCO:2012-04-16:Tomas Mraz <tm at t8m.info>
DCO:2012-04-20:Rafaël Carré <funman at videolan.org>
DCO:2012-11-14:Jussi Kivilinna <jussi.kivilinna at mbnet.fi>
DCO:2012-12-05:Werner Koch <wk at gnupg.org>
DCO:2012-12-14:Dmitry Kasatkin <dmitry.kasatkin at intel.com>
DCO:2013-02-26:Christian Aistleitner <christian at quelltextlich.at>


More credits
============
The ATH implementation (src/ath*) has been taken from GPGME and
relicensed to the LGPL by the copyright holder of GPGME (g10 Code
GmbH); it is now considered to be a part of Libgcrypt.

Most of the stuff in mpi has been taken from an old GMP library
version by Torbjorn Granlund <tege@noisy.tmg.se>.

The files cipher/rndunix.c and cipher/rndw32.c are based on those
files from Cryptlib.  Copyright Peter Gutmann, Paul Kendall, and Chris
Wedgwood 1996-1999.

The ECC code cipher/ecc.c was based on code by Sergi Blanch i Torne,
sergi at calcurco dot org.

The implementation of the Camellia cipher has been been taken from the
original NTT provided GPL source.

The CAVS testing program tests/cavs_driver.pl is not to be considered
a part of libgcrypt proper.  We distribute it merely for convenience.
It has a permissive license and is copyrighted by atsec information
security corporation.  See the file for details.
--------------------------------------------

Copyright:

Most of the package is licensed under the GNU Lesser General Public 
License (LGPL) version 2.1 (or later), except for helper and debugging
binaries. See below for details. The documentation is licensed under
the GPLv2 (or later), see below.

Excerpt from upstream's README:

    The library is distributed under the terms of the GNU Lesser
    General Public License (LGPL); see the file COPYING.LIB for the
    actual terms.  The helper programs (e.g. gcryptrnd and getrandom)
    as well as the documentation are distributed under the terms of
    the GNU General Public License (GPL); see the file COPYING for the
    actual terms.

    This library used to be available under the GPL - this was changed
    with version 1.1.7 with the rationale that there are now many free
    crypto libraries available and many of them come with capabilities
    similar to Libcrypt.  We decided that to foster the use of
    cryptography in Free Software an LGPLed library would make more
    sense because it avoids problems due to license incompatibilities
    between some Free Software licenses and the GPL.

    Please note that in many cases it is better for a library to be
    licensed under the GPL, so that it provides an advantage for free
    software projects.  The Lesser GPL is so named because it does
    less to protect the freedom of the users of the code that it
    covers.  See http://www.gnu.org/philosophy/why-not-lgpl.html for
    more explanation.

An example of the license headers of the LGPL is

-------------
   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006
                 2007, 2008, 2009, 2010, 2011  Free Software Foundation, Inc.

   This file is part of Libgcrypt.

   Libgcrypt is free software; you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as
   published by the Free Software Foundation; either version 2.1 of
   the License, or (at your option) any later version.

   Libgcrypt 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 Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with this program; if not, see <http://www.gnu.org/licenses/>.
-------------

On Debian GNU/Linux systems, the complete text of the GNU Lesser
General Public License can be found in
`/usr/share/common-licenses/LGPL'; 

The documentation licensed under the GPL
-------------
Copyright @copyright{} 2000, 2002, 2003, 2004, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.

@quotation
Permission is granted to copy, distribute and/or modify this document
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 text of the license can be found in the
section entitled ``GNU General Public License''.
-------------

On Debian GNU/Linux systems, the text of the GNU General Public License, 
version 2 can be found in `/usr/share/common-licenses/GPL-2'.