[Dailydave] Quantum Key Distribution

Jean-Philippe Aumasson jeanphilippe.aumasson at gmail.com
Fri Aug 11 06:41:46 UTC 2017

Mostly PR I believe. With this satellite-QKD thing the Chinese probably
want to show their own expertise (if they built this alone and not with
Western companies), whereas a couple years ago they were discussing with
IdQuantique and others to build QKD backbones. Are the Chinese into
"quantum supremacy" projects like Europeans?

I don't see satellite-QKD as a way to defeat future (?) quantum computers,
cos satellite-to-earth coms are usually symmetric-crypto based, something
unbroken by a QC. BTW QKD research doesn't have much to do with QC.

On Thu, Aug 10, 2017 at 5:42 PM dave aitel <dave at immunityinc.com> wrote:

> While nothing cryptographic has leaked from the Snowden documents to the
> public, Edward Snowden did give up a lot of things to the Chinese to get
> out of Hong Kong, and I notice that they've recently invested very
> heavily in Quantum Key Distrubtion (for example, shooting satellites up
> with entangled photons, etc.)
> So my question is: Is this something they learned about US/Russian
> capability against other cryptographics that we are not aware of? Did
> they study up and learn something themselves that we are not aware of?
> Or is this a total lark or PR stunt? Or maybe it's just not that much
> money to them, so they might as well?
> -dave
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