[Cryptography] Open Letter to Phil Zimmermann and Jon Callas of Silent Circle, On The Closure of the “Silent Mail” Service

2013-08-21 Thread Zooko Wilcox-OHearn
[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

Re: [Cryptography] What is the state of patents on elliptic curve cryptography?

2013-08-21 Thread Zooko Wilcox-OHearn
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

Re: [Cryptography] What is the state of patents on elliptic curve cryptography?

2013-08-21 Thread Phillip Hallam-Baker
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

Re: [Cryptography] What is the state of patents on elliptic curve cryptography?

2013-08-21 Thread Jerry Leichter
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