topic Re: QKE - Quantum Cryptography technique in Tech Talk

QKE - Quantum Cryptography technique

Caute_cautim — Sun, 07 Apr 2019 19:52:34 GMT

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

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-security

Regards

Caute_cautim

Re: QKE - Quantum Cryptography technique

iluom — Tue, 09 Apr 2019 12:43:46 GMT

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

Re: QKE - Quantum Cryptography technique

rslade — Tue, 09 Apr 2019 16:27:53 GMT

> iluom (Contributor I) posted a new reply in Tech Talk on 04-09-2019 08:43 AM in the (ISC)Â² 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

====================== (quote inserted randomly by Pegasus Mailer)
rslade@vcn.bc.ca slade@victoria.tc.ca rslade@computercrime.org
Nurture your mind with great thoughts; to believe in the heroic
makes heroes. - Benjamin Disraeli
victoria.tc.ca/techrev/rms.htm http://twitter.com/rslade
http://blogs.securiteam.com/index.php/archives/author/p1/
https://is.gd/RotlWB

Re: QKE - Quantum Cryptography technique

Kerling — Wed, 01 May 2019 08:50:03 GMT

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.

Re: QKE - Quantum Cryptography technique

Caute_cautim — Wed, 01 May 2019 19:24:06 GMT

@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

Re: QKE - Quantum Cryptography technique

rslade — Thu, 02 May 2019 02:26:41 GMT

> 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
...)

====================== (quote inserted randomly by Pegasus Mailer)
rslade@vcn.bc.ca slade@victoria.tc.ca rslade@computercrime.org
It is what you read when you don't have to that determines what
you will be when you can't help it. - Oscar Wilde
victoria.tc.ca/techrev/rms.htm http://twitter.com/rslade
http://blogs.securiteam.com/index.php/archives/author/p1/
https://is.gd/RotlWB

Re: QKE - Quantum Cryptography technique

rslade — Thu, 02 May 2019 15:33:36 GMT

> 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 ...

Re: QKE - Quantum Cryptography technique

Caute_cautim — Thu, 02 May 2019 19:32:52 GMT

@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-invisible-targets-100km

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