NTRU is patented though and requires you to use their GPL library for patent exemption, or have a paid license (as said in the project README). However, given t

NTRU is patented though and requires you to use their GPL library for patent exemption, or have a paid license (as said in the project README). However, given that, there's also http://tbuktu.github.io/ntru/ http://tbuktu.github.io/ntru/ as BSD, so I'm not sure how to square that with what the owners of NTRU publicly stated. Apparently the EU is also considering it for some sort of standardization? Bernstein also recently released a paper on NTRU Prime which I just became aware of, although it makes no mention of the patent issue. https://ntruprime.cr.yp.to/ntruprime-20160511.pdf https://ntruprime.cr.yp.to/ntruprime-20160511.pdf In any case, it'd be interesting to get an answer on this, since NTRU has looked interesting for a long time, but the patents were pretty unfortunate.