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Community Champion

QKE - Quantum Cryptography technique

Hi All QKE looks promising:  https://interestingengineering.com/photons-over-optical-fiber-obstacle-course-could-improve-cyber-se...

 

Those of you who have a radio communications background, won't be surprised that Quantum Computing is moving rapidly towards radio theory, waveguides at 45 GHz range and fibre optics for passing photons.  

 

https://interestingengineering.com/photons-over-optical-fiber-obstacle-course-could-improve-cyber-se...

 

Regards

 

Caute_cautim

7 Replies
Contributor I

Re: QKE - Quantum Cryptography technique

Good one

 

Truly random results can only be generated using a phenomenon that naturally occurs in nature, the others are just quasi-random RNG, or pseudo-random RNG and are often possible to predict or reverse engineer in some way.


Two of these technologies Quantum Random Number Generation  and Quantum Key Distribution leverage the principles of quantum physics for Quantum encryption.

 

Randomness  is the corn.erstone of cryptography as it is used to generate session keys

Mouli, CISSP
Community Champion

Re: QKE - Quantum Cryptography technique

> iluom (Contributor I) posted a new reply in Tech Talk on 04-09-2019 08:43 AM in the (ISC)² Community :

>   Truly random results can only be generated using a phenomenon
> that naturally occurs in nature, the others are just quasi-random RNG, or
> pseudo-random RNG and are often possible to predict or reverse engineer in
> some way.

"The generation of random numbers is too important to be left to
chance." -Robert R. Coveyou Oak Ridge National Laboratory

"Anyone who considers arithmetical methods of producing random
numbers is, of course, in a state of sin."
- John Louis von Neumann

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Viewer II

Re: QKE - Quantum Cryptography technique

Just a reminder, even if you would use radio band signals, to send quantum signals through the ether, it would not be anything alike you've seen before. There is the issue of noise, and you could only overcome it by an entangled (hence error correcting) photon packets. These are currently in the experimental phase. So it should take another 5 years or so.

Community Champion

Re: QKE - Quantum Cryptography technique

@KerlingIs this why the Chinese Military have already adopted Quantum Radar systems, mounted on their sea-borne ships, and actively using them to detect stealth aircraft within the Pacific?   As an active monitor of intruders on the HF spectrum of normal OTHR (Over the Horizon Radar) systems mainly driven by software computing by the Chinese and Russians.  There are strange high levels of noise being emanated over a 2 MHz bandwidth, in combination with normal OTHR transmissions proliferating the HF bands in defence of their homeland.   The SDR (Software Derived Receiver) shows a remarkable insight into the wide range of interference sources and over an incredible spectrum.

 

Regards

 

Caute_cautim

Community Champion

Re: QKE - Quantum Cryptography technique

> Kerling (Viewer) posted a new reply in Tech Talk on 05-01-2019 04:50 AM in the

> Just a reminder, even if you would use radio band signals, to send quantum
> signals through the ether, it would not be anything alike you've seen before.

Ummm, sorry, you wanna define that a bit? Anybody any good at generating
radio frequency size photons? (Even though we had masers before lasers ...)

> There is the issue of noise, and you could only overcome it by an entangled
> (hence error correcting) photon packets. These are currently in the experimental
> phase. So it should take another 5 years or so.

At the moment they seem to be just doing it with cascades, which probably opens
the door for interception attacks (unless you want to entangle the whole cascade
...)

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you will be when you can't help it. - Oscar Wilde
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Community Champion

Re: QKE - Quantum Cryptography technique

> Caute_cautim (Community Champion) posted a new reply in Tech Talk on 05-01-2019

 

> @KerlingIs this why the Chinese Military have already adopted Quantum Radar

 

Sorry, "Quantum Radar"? You're going to have to explain that one ...


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Community Champion

Re: QKE - Quantum Cryptography technique

@rsladeQuantum radar is an emerging remote-sensing technology based on input quantum correlations (in particular, quantum entanglement) and output quantum detections. If it is successfully developed, it will allow the radar system to pick out its own signal even when swamped by background noise. This allows it to detect stealth aircraft, filter out deliberate jamming attempts, and operate in areas of high background noise, e.g., due to ground clutter. The first feasible design of a quantum radar was proposed in 2015 by an international team and is based on the protocol of Gaussian quantum illumination. 

 

https://www.youtube.com/watch?v=R_Mcy2TfWWQ

 

https://www.rt.com/news/358664-china-quantum-radar-test/

 

https://sputniknews.com/military/201610041045974842-china-quantum-radar-stealth/

 

https://www.scmp.com/news/china/article/2021235/end-stealth-new-chinese-radar-capable-detecting-invi...

 

https://foreignpolicy.com/2017/11/28/the-quantum-gap-with-china/

 

Okay, go digest this lot and do your own research too. 

 

Regards

 

Caute_cautim