[Cryptography] Licensing OCB (RFC 7253)

[John Kelsey]

> On Jun 8, 2014, at 8:45 PM, "Salz, Rich" <rsalz at akamai.com> wrote:
> 
> I had a nice set of email exchanges with Phillip.  Questions about licensing should be directed to him. In general, for a one-time fee you can get an unlimited license to use.  I won't quote the number I was given. In addition, he said:
>    As per the "Patent License for OpenSSL" (License 3), anyone who gets OCB
>    via the OpenSSL library may freely use it, as far as any IP that I own, for realizing SSL/TLS.
>    You are welcome to put me on record saying so in whatever cryptography list you are speaking of.

Rich,

I thought the big issue with OCB was the overlapping patents that probably read on it--I think there were related patents filed by IBM (Jutla) and Gligor.  Again, I don't claim any expertise on this, but even if you license a patent from Rogaway, you still have to deal with the other patents that apply.

--John