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