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About Quantum Computing

**SiliconWizard**:

Side thought, but trying so hard to design systems that can crack robust encryption in a reasonable time is as interesting as it's psychopathic, which incidentally can also be said about quantum physics in general. ;D

**pwlps**:

Why all this excitement about quantum computers ? First because they are in principle able to crack RSA (Shor's algorithm) which is the most widely used encryption. But RSA will be replaced by... quantum key distribution ! Unbreakable by quantum computers. And quantum key distribution seems now much closer to reality than quantum computers.

**Bud**:

QKD already exists and commercial installations exist.

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