Nick Mathewson writes ("Questions about libntru license/ntru patent status"):
> I'm a developer on the Tor Project. We're thinking of adding a new
> cryptographic algorithm to Tor in order to improve our security
> against possible advances in quantum computation.
>
> Many Tor servers run on Debian, and we'd like to make sure that
> everything we do in Tor can be distributed under the DFSG.
I think if you start with the GPL'd NTRU implementation, you get a
patent licence too. The statement here
https://github.com/NTRUOpenSourceProject/ntru-crypto/blob/master/LICENSE.md
is clear that this is a patent as well as a copyright licence. (It
talks about `NTRU cryptographic IP'.)
So this is fine from a DFSG point of view.
But note that the whole program would effectively be GPL'd: certainly,
binaries of Tor+NTRU would have to be released under GPLv2+.
Are there any parts of Tor which currently have GPL-incompatible
licences ? (Hopefully not.)
Ian.
