[146338] in cryptography@c2.net mail archive
Re: [Cryptography] What is the state of patents on elliptic curve
daemon@ATHENA.MIT.EDU (Phillip Hallam-Baker)
Wed Aug 21 13:41:43 2013
X-Original-To: cryptography@metzdowd.com
In-Reply-To: <20130820133838.4cdb96e9@jabberwock.cb.piermont.com>
Date: Tue, 20 Aug 2013 14:26:06 -0400
From: Phillip Hallam-Baker <hallam@gmail.com>
To: "Perry E. Metzger" <perry@piermont.com>
Cc: cryptography@metzdowd.com
Errors-To: cryptography-bounces+crypto.discuss=bloom-picayune.mit.edu@metzdowd.com
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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 any
need.
The situation might change depending on who buys RIM.
On Tue, Aug 20, 2013 at 1:38 PM, Perry E. Metzger <perry@piermont.com>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.)
>
> Perry
> --
> Perry E. Metzger perry@piermont.com
> _______________________________________________
> The cryptography mailing list
> cryptography@metzdowd.com
> http://www.metzdowd.com/mailman/listinfo/cryptography
>
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Website: http://hallambaker.com/
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<div dir=3D"ltr">It is almost certain that most uses of EC would not infrin=
ge the remaining patents.<div><br></div><div>But the patent holder can forc=
e 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 any need.</div>
<div><br></div><div><br></div><div>The situation might change depending on =
who buys RIM.=A0</div></div><div class=3D"gmail_extra"><br><br><div class=
=3D"gmail_quote">On Tue, Aug 20, 2013 at 1:38 PM, Perry E. Metzger <span di=
r=3D"ltr"><<a href=3D"mailto:perry@piermont.com" target=3D"_blank">perry=
@piermont.com</a>></span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">What is the current state of patents on elli=
ptic curve cryptosystems?<br>
(It would also be useful to know when the patents on such patents as<br>
exist end.)<br>
<span class=3D"HOEnZb"><font color=3D"#888888"><br>
Perry<br>
--<br>
Perry E. Metzger =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0<a href=3D"mailto:perry@pie=
rmont.com">perry@piermont.com</a><br>
_______________________________________________<br>
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"_blank">http://www.metzdowd.com/mailman/listinfo/cryptography</a><br>
</font></span></blockquote></div><br><br clear=3D"all"><div><br></div>-- <b=
r>Website: <a href=3D"http://hallambaker.com/">http://hallambaker.com/</a><=
br>
</div>
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