[This Open Letter will be posted to https://LeastAuthority.com when we
get our new blog up and running there.]
This open letter is in response to the `recent shutdown of Lavabit`_ ,
the ensuing `shutdown of Silent Circle's “Silent Mail” product`_, `Jon
Callas's posts about the topic on G+`_, and
Here's a nice resource: RFC 6090!
https://tools.ietf.org/html/rfc6090
Also relevant:
http://cr.yp.to/ecdh/patents.html
I'd be keen to see a list of potentially-relevant patents which have
expired or are due to expire within the next 5 years.
Regards,
Zooko Wilcox-O'Hearn
Founder, CEO, and
It is almost certain that most uses of EC would not infringe the remaining
patents.
But the patent holder can force anyone attempting to use them to spend
about $3-5 million to defend their right to use EC and so there is very
little incentive to do so given that RSA 2048 is sufficient for almost
On Aug 20, 2013, at 1:38 PM, Perry E. Metzger wrote:
What is the current state of patents on elliptic curve cryptosystems?
(It would also be useful to know when the patents on such patents as
exist end.)
As the Wikipedia article http://en.wikipedia.org/wiki/ECC_patents makes clear,
the