[Cfrg] intel license (was: Re: RG Last Call - draft-irtf-cfrg-ocb-00)

["David McGrew (mcgrew)" <[e-mail]>]

Hi Phil,

On 2/13/13 2:27 AM, "Phillip Rogaway" <[e-mail]> wrote:

>
>Consider that, just a few weeks ago, Intel was granted a US patent
>(#8,340,280) for the tricks that enable their carryless multiply NI to
>efficiently realize GCM.  Where¹s the guarantee that Intel won¹t go after
>someone with a PCLMULDQ-based GCM implementation? Now I¹m definitely not
>suggesting that OpenSSL rollback to a dumber GCM implementation. But
>troubling patent issues have become a part of our landscape. Somehow we
>get by.

Intel has released a GCM implementation that uses PCLMULDQ and granted its
use under a BSD-style license
<http://www.intel.com/p/en_US/embedded/hwsw/software/crc-license?id=6386>.
   It says:

<quote>
Copyright © 2012, Intel Corporation

All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
Neither the name of the Intel Corporation nor the names of its
contributors may be used to endorse or promote products derived from this
software without specific prior written permission.
</quote>

Like you, I would rather be discussing technical issues, but I wanted to
pass along the relevant info to people who might be interested.

David