source: git/ntl/COPYING @ 493225

spielwiese
Last change on this file since 493225 was 362137d, checked in by Hans Schönemann <hannes@…>, 16 years ago
*hannes: 3-1 git-svn-id: file:///usr/local/Singular/svn/trunk@10986 2c84dea3-7e68-4137-9b89-c4e89433aadc
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1
2                  COPYRIGHT NOTICE
3                    for NTL 5.4
4          (modified for Singular 2-0-6 - 3-1)
5
6NTL -- A Library for Doing Number Theory
7Copyright (C) 1996-2005  Victor Shoup
8
9The most recent version of NTL is available at http://www.shoup.net
10
11This program is free software; you can redistribute it and/or
12modify it under the terms of the GNU General Public License
13as published by the Free Software Foundation; either version 2
14of the License, or (at your option) any later version.
15
16This program is distributed in the hope that it will be useful,
17but WITHOUT ANY WARRANTY; without even the implied warranty of
18MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19GNU General Public License for more details.
20
21You should have received a copy of the GNU General Public License
22along with this program; if not, write to the Free Software
23Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
24
25This entire copyright notice should be placed in an appropriately
26conspicuous place accompanying all distributions of software that
27make use of NTL.
28
29The above terms apply to all of the software modules distributed with NTL,
30i.e., all source files in either the ntl-xxx.tar.gz or WinNTL-xxx.zip
31distributions.  In general, the individual files do not contain
32copyright notices.
33
34Note that the quad_float package is derived from the doubledouble package,
35originally developed by Keith Briggs, and also licensed unger the GNU GPL.
36The files quad_float.c and quad_float.h contain more detailed copyright
37notices.
38
39Note that the traditional long integer package used by NTL, lip.c, is derived
40from---and represents an extensive modification of---
41a package originally developed and copyrighted by Arjen Lenstra,
42who has agreed to renounce any copyright claims on the particular
43version of the long integer package appearing in NTL, so that the
44this package now is covered by the GNU GPL as well.
45
46Note that the alternative long integer package used by NTL is GMP,
47which is written by Torbjorn Granlund <tege@swox.com>.
48GMP is licensed under the terms of the GNU Lesser General Public License.
49
50Note that NTL makes use of the RSA Data Security, Inc. MD5 Message
51Digest Algorithm.
52
53Note that prior to version 4.0, NTL was distributed under the following terms:
54   NTL is freely available for research and educational purposes.
55   I don't want to attach any legalistic licensing restrictions on
56   users of NTL.
57   However, NTL should not be linked in a commercial program
58   (although using data in a commercial
59   product produced by a program that used NTL is fine).
60
61The hope is that the GNU GPL is actually less restrictive than these
62older terms;  however, in any circumstances such that GNU GPL is more
63restrictive, then the following rule is in force:
64versions prior to 4.0 may continue to be used under the old terms,
65but users of versions 4.0 or later should adhere to the terms of the GNU GPL.
66
67END COPYRIGHT NOTICE
68
69
70Following is the complete text of the GNU General Public License.
71Note that the copyright notice below applies to the text of the license
72itself, and not to NTL.
73
74
75
76                    GNU GENERAL PUBLIC LICENSE
77                       Version 2, June 1991
78
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