Thanks William and Ertetlen for clarifying:
On 25/05/15 10:09 PM, William Whyte wrote:
Hi Ertetlen,
The base license for NTRU is GPL v2 or higher. However, there's a
license to distribute NTRU under GPL alongside open source projects that
exist under other licenses: see details at
https://github.com/NTRUOpenSourceProject/ntru-crypto/blob/master/FOSS%20Exception.md
1. I can't speak for the real developers of OpenBSD.
(and I'm not advocating anything here, just trying to
keep the issues clear).
2. The "FOSS exception" clause above won't help with existing
OpenBSD policy, insofar as I understand it here:
http://www.openbsd.org/policy.html
[note section towards end on GPL under "Specific Cases"]
So NTRU doesn't seem likely. It would require the project
leaders / developers to find some irresistable attraction in
NTRU, so great that they wanted to modify the licence policy.
3. I am so out-of-touch I didn't realise new OpenBSD code is
under a re-wording of an ISC licence - not the two-clause BSD -
so OpenBSD may no longer comply with NTRU's "FOSS exception"
clause.
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/share/misc/license.template?rev=HEAD
cheers,
Douglas
Which NTRU ciphersuite were you implementing? We're in the process of
specifying a new "hybrid" ciphersuite that allows an NTRU key exchange
to be run in parallel to a selected "classical" ciphersuite, allowing
users to use a currently trusted algorithm with NTRU as an additional
layer of security; I attach the relevant (not yet distributed) Internet
Draft, we'd value your feedback.
Cheers,
William
On Sun, May 24, 2015 at 8:12 AM, ertetlen barmok
<[email protected] <mailto:[email protected]>> wrote:
Hello,
Is the NTRU source available via BSD licence?
Thank you.
-------- Original Message --------
From: Douglas Ray <[email protected] <mailto:[email protected]>>
To: ertetlen barmok <[email protected]>
Subject: Re: NTRU Open Source Project / Post-quantum era
Date: Sun, 24 May 2015 20:32:29 +1000
> to clarify
>
> On 24/05/15 1:57 AM, Mike Burns wrote:
> > On 2015-05-23 05.24.30 -0400, ertetlen barmok wrote:
> >> https://github.com/NTRUOpenSourceProject
> >
> >
https://github.com/NTRUOpenSourceProject/ntru-crypto/blob/master/LICENSE.md
> >
> > "NTRU cryptographic IP and reference software may be used and
modified
> > to the needs of the user as long as the user adheres to version
two (2)
> > or higher of the GPL License"
> >
> >> When will LibreSSL have ciphers for the Post-quantum era?
> >
> > When you submit the patch -- with the correct license.
> >
> >
>
> OpenBSD excludes GPL - it uses a BSD licence.
>
> Wikipedia claims NTRU is available under GPL or BSD licence.
> This seems to be contradicted by the NTRU source quoted above.
>
> Is there another tree using BSD licencing?
