So the news is that it can be used for GPL software without patent issues? If so that's nice, but the various documents are a bit confusing:
https://github.com/NTRUOpenSourceProject/ntru-crypto > Is NTRU Patented? > Yes. The patents will still be enforced but may be used under the > GPL, i.e. under the condition that any work that uses them is also > made available under the GPL. The patents and the code > implementations are also available under standard commercial terms. Great! https://github.com/NTRUOpenSourceProject/ntru-crypto/blob/master/PATENTS.md > GPL > NTRU cryptographic patents may be used as long as the user adheres to > version two (2) of the GPL License. For details please refer to > COPYING-2.txt included in this distribution. > > The GPLv2 license may also be found on the gnu.org website at: > (http://www.gnu.org/licenses/gpl-2.0.html) ...but only GPLv2? https://github.com/NTRUOpenSourceProject/ntru-crypto/blob/master/COPYRIGHT.md > Copyright (C) 2009-2013 Security Innovation > > 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 2 of the License, or (at > your option) any later version. And here it says GPLv2 or any later version, which includes GPLv3, which has the text about automatic patent licensing. Both GPLv2 and GPLv3 are included in the repository as COPYING-2.txt and COPYING-3.txt, and the source files have copyright notices that say GPLv2 or later. Does anyone know which it is? GPLv2 or later, or just GPLv2? --ll
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