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Re: IBM press release - encryption and authentication

daemon@ATHENA.MIT.EDU (Bram Cohen)
Mon Dec 11 01:02:47 2000

Date: Sun, 10 Dec 2000 13:38:44 -0800 (PST)
From: Bram Cohen <bram@gawth.com>
To: "Paulo S. L. M. Barreto" <paulo.barreto@terra.com.br>
Cc: cryptography@c2.net
In-Reply-To: <00121010372900.00648@Anubis>
Message-ID: <Pine.LNX.4.21.0012101336520.9932-100000@ultra.gawth.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII

On Sun, 10 Dec 2000, Paulo S. L. M. Barreto wrote:

> A description of Jutla's mode of operation is available from NIST's AES site.
> And yes, IBM has filed patent for it.

Note to cryptographers of the world - there are two reasons to patent an
algorithm -

1) to keep anyone else from patenting it and release it into the public
domain.

2) to keep anyone from using it

If you're not doing 1, you're doing 2.

-Bram Cohen




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