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Re: music encryption scheme

daemon@ATHENA.MIT.EDU (Dennis Glatting)
Tue Jul 4 15:17:43 2000

Message-ID: <3962289D.212971FE@software-munitions.com>
Date: Tue, 04 Jul 2000 11:10:37 -0700
From: Dennis Glatting <dennis.glatting@software-munitions.com>
MIME-Version: 1.0
To: "P.J. Ponder" <ponder@freenet.tlh.fl.us>
Cc: cryptography@c2.net
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"P.J. Ponder" wrote:
> 
> >From the Edupage newsletter:
> 
> PATENTS GRANTED FOR ENCRYPTION OF WEB MUSIC
> Three mathematicians at Brown University recently were awarded a
> patent for a system that encodes every second of music downloaded
> from a Web site with a different encryption key, breaking a
> typical song up into more than 200 different codes.  NTRU
> Cryptosystems, a Rhode Island firm, now owns the patent to the
> device.  The system, which utilizes "public key" encryption,
> makes it impossible to play a song on any other device except for
> the one owned by the authorized user.  The system works for
> virtually all data transmissions between computers, cell phones,
> digital music players, or any consumer electronic device that has
> Web access.  Once a consumer orders music online, the user's
> computer or music player gives the Web site's server the encoding
> key, which is used to encode the data and then thrown away, and
> the music is sent back to the user's computer, which already
> knows the key. (New York Times, July 3 2000)

Would not this patent and technology conflict with any present forms
of IPsec (e.g., RFC-2401, SKIP, Photorus, etc)?


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