Some think Fibre Optics are always the answer

see http://spectrum.ieee.org/tech-talk/aerospace/satellites/quantum-networks-in-space-closer-to-reality Satellites are making a comeback. SpaceX wants to launch thousands to serve the internet, and now we see they work best for global Quantum Entangled Encryption networks. Once the thin thick atmosphere is cleared, the upper atmosphere is very clean and transparent, especially compared to a communications fibre. I’m actually still a bit... View Article

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see http://spectrum.ieee.org/tech-talk/aerospace/satellites/quantum-networks-in-space-closer-to-reality

Satellites are making a comeback. SpaceX wants to launch thousands to serve the internet, and now we see they work best for global Quantum Entangled Encryption networks. Once the thin thick atmosphere is cleared, the upper atmosphere is very clean and transparent, especially compared to a communications fibre.

I’m actually still a bit of a skeptic of the value of such encryption systems for the average person. I suspect companies will be able to link directly to satellites, for end to end key generation. But for all that effort, you’re still using rock solid AES encryption. Why not spend all that money on a plane ticket for a person carrying a new password written on paper? I’m sure there are edge cases yet to be revealed/discovered.

Fibre is great, and it’s used in many places, including Christmas decorations. But that doesn’t mean it’s always the best option for every situation.