All OCB-related IP of mine is in the public domain:
as far as I am concerned,
you may use it, without restrictions, with my blessing.
Correspondingly, I long ago stopped paying my patent-renewal fees.
This wasn’t an accident; it was a decision.
At an earlier point in time I licensed OCB:
free licenses for most settings, but a small one-time fee for others.
To retain the historical record, I retain links to the
free licenses from 2013. Namely:
(License for Open Source Software Implementations of OCB);
(License for Non-Military Software Implementations of OCB); and
(Patent License for OpenSSL).
These license grants were devised not only to leave a small space
where I’d feel okay to charge something,
but also to try to stifle my work from showing up in
Another feature (of licenses 1 and 2) was that
the license grant to a party would terminate if they sued someone
else over their use of OCB.
This was a legal scholar’s trick for me
trying to discourage others from suing you for using OCB.
Regardless, the licensing approach proved to be ineffective.
Just the same, many thanks to the students and faculty at Harvard’s
Berkman Center for Internet & Society who helped me with these licenses.
Without their expertise, I would have been clueless about how to
do what I wanted.
Thanks also to Dan Bernstein for
a helpful suggestion about expanding the scope of the License 1.
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