Quantum Key Distribution - Does anybody really need it?

Using special purpose hardware and the physics of quantum mechanics you can distribute cryptographic keys to be used in a standard symmetric key cryptography way, but is it worth it? Why would we want to distribute keys this way? What are the advantages other than allowing you to tell whether anyone has been "eavesdropping" on the line.

In this video we discuss the pros and cons of using quantum key distribution. Interestingly, the NSA certainly don't want us to do it... so do you need a QKD/QRNG?

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Cryptosense CEO Dr. Graham Steel was formerly an academic researcher before founding Cryptosense in 2013. His cryptography expertise is the basis for the company's 'Analyzer' technology which allows customers to protect themselves against losing sensitive data.

[ky-effect]

The West 🇺🇸: "We can't figure out good way to use that amazing new QKD technology right now and don't want to spend the money to figure it out."
China 🇨🇳 : "Yes! another opportunity advance our technological superiority so we can dominate the world"

[davidk]

Why is research on QKD restricted by NSA??? Sounds silly.

[nathanhiggers]

They glow in the dark. You can see them if you're driving.