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Re: [Qirg] qirg - Requested session has been scheduled for IETF 108

"touch@strayalpha.com" <touch@strayalpha.com> Mon, 06 September 2021 16:56 UTC

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From: "touch@strayalpha.com" <touch@strayalpha.com>
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Date: Mon, 06 Sep 2021 09:56:35 -0700
Cc: Gelard Patrick <Patrick.Gelard@cnes.fr>, "w.kozlowski@tudelft.nl" <w.kozlowski@tudelft.nl>, "qirg@irtf.org" <qirg@irtf.org>
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To: "Scott Fluhrer (sfluhrer)" <sfluhrer=40cisco.com@dmarc.ietf.org>
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Subject: Re: [Qirg] qirg - Requested session has been scheduled for IETF 108
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Hi, Scott,

Because OTP consumes keys; QKD generates them.

Joe

—
Joe Touch, temporal epistemologist
www.strayalpha.com

> On Sep 6, 2021, at 9:27 AM, Scott Fluhrer (sfluhrer) <sfluhrer=40cisco.com@dmarc.ietf.org> wrote:
> 
> Ok, I'll ask the obvious question: if we assume that we have a deployable OTP system available, what does QKD bring to the table?  QKD's claim to fame is that its security is based on QM; OTP has an even better security guarantee (informational; that is, the attacker literally does not have enough information to attack the system).  Given that OTP does not have QKD's downsides (e.g. cost, range limitations, or restrictions to certain types of media), why would we use QKD?
> 
> -----Original Message-----
> From: Qirg <qirg-bounces@irtf.org> On Behalf Of Gelard Patrick
> Sent: Monday, September 6, 2021 11:28 AM
> To: w.kozlowski@tudelft.nl; qirg@irtf.org
> Subject: Re: [Qirg] qirg - Requested session has been scheduled for IETF 108
> 
> Dear Wojciech 
> 
> This very interesting overview shows a considerable work, now QKD Network seem to be more oriented to "Trusted Node Network Relay" than Entanglement Swapping. In this scheme, key are stored in QKD nodes (trusted nodes) and relayed to other distant QKD nodes via highly secure encryption, with OTP (one-time-pad) recommended. 
> 
> Best regards
> Patrick
> 
> -----Message d'origine-----
> ---------- Message transféré ---------
> De : Wojciech Kozlowski <W.Kozlowski@tudelft.nl> Date : lun. 6 sept. 2021 à 10:48 Objet : [Qirg] Liaison statement from ITU À : qirg@irtf.org <qirg@irtf.org>
> 
> Dear QIRG,
> 
> The ITU-T SG-13 have sent the QIRG a liaison statement: [sp16-sg13-oLS-00213] LS on work progress on Quantum Key Distribution (QKD) network in SG13 (as of July 2021).
> 
> You can view the full text and attachments on the datatracker: https://datatracker.ietf.org/liaison/1752/.
> 
> My brief take on it is that it is a very interesting snapshot of the ITU's current QKD network standardization efforts.
> 
> Thanks,
> Wojtek
> 
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