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Quantum encryption is a thing, fast enough for phone calls

Quantum encryption is now 5-10x faster than existing methods, can protect phone calls
By: Anthony Garreffa | Science, Space & Robotics News | Posted: Nov 27, 2017 5:15 am

Quantum encryption is the wish of most in the security industry as you can't even look at the data without making changes to it, but using quantum encryption - until now - was always slower than traditional methods.




Not for long, as researchers have made a new quantum encryption key distribution system that is between 5-10x faster than previous methods, and can keep up with conventional encryption when run side-by-side. How did they do it? By getting more data into each photon.


Engadget reports "Normally, you can only encode one bit per photon by using a weak laser. The team discovered that it could encode two bits by tweaking the release time of photons and using high-speed photon detectors to track these changes. Effectively, they're giving photons properties they couldn't have before". Crazy stuff, isn't it?


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